support multiple commands in sesh

sesh/go.mod

@@ -2,11 +2,15 @@ module github.com/roodletoof/sesh
 
 go 1.25.6
 
+require (
+	github.com/goccy/go-yaml v1.19.2
+	github.com/ktr0731/go-fuzzyfinder v0.9.0
+)
+
 require (
 	github.com/gdamore/encoding v1.0.1 // indirect
 	github.com/gdamore/tcell/v2 v2.6.0 // indirect
 	github.com/ktr0731/go-ansisgr v0.1.0 // indirect
-	github.com/ktr0731/go-fuzzyfinder v0.9.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/nsf/termbox-go v1.1.1 // indirect
@@ -15,5 +19,4 @@ require (
 	golang.org/x/sys v0.32.0 // indirect
 	golang.org/x/term v0.31.0 // indirect
 	golang.org/x/text v0.24.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

sesh/go.sum

@@ -3,6 +3,12 @@ github.com/gdamore/encoding v1.0.1 h1:YzKZckdBL6jVt2Gc+5p82qhrGiqMdG/eNs6Wy0u3Uh
 github.com/gdamore/encoding v1.0.1/go.mod h1:0Z0cMFinngz9kS1QfMjCP8TY7em3bZYeeklsSDPivEo=
 github.com/gdamore/tcell/v2 v2.6.0 h1:OKbluoP9VYmJwZwq/iLb4BxwKcwGthaa1YNBJIyCySg=
 github.com/gdamore/tcell/v2 v2.6.0/go.mod h1:be9omFATkdr0D9qewWW3d+MEvl5dha+Etb5y65J2H8Y=
+github.com/goccy/go-yaml v1.19.2 h1:PmFC1S6h8ljIz6gMRBopkjP1TVT7xuwrButHID66PoM=
+github.com/goccy/go-yaml v1.19.2/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
+github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/ktr0731/go-ansisgr v0.1.0 h1:fbuupput8739hQbEmZn1cEKjqQFwtCCZNznnF6ANo5w=
 github.com/ktr0731/go-ansisgr v0.1.0/go.mod h1:G9lxwgBwH0iey0Dw5YQd7n6PmQTwTuTM/X5Sgm/UrzE=
 github.com/ktr0731/go-fuzzyfinder v0.9.0 h1:JV8S118RABzRl3Lh/RsPhXReJWc2q0rbuipzXQH7L4c=
@@ -58,6 +64,3 @@ golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

sesh/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"os/exec"
@@ -9,14 +10,37 @@ import (
 	"strings"
 	"syscall"
 
+	"github.com/goccy/go-yaml"
 	"github.com/ktr0731/go-fuzzyfinder"
-	"gopkg.in/yaml.v3"
 )
 
+var _ yaml.InterfaceUnmarshaler = &Programs{}
+type Programs struct {
+	programs []string
+}
+
+// UnmarshalYAML implements [yaml.InterfaceUnmarshaler].
+func (p *Programs) UnmarshalYAML(f func(any) error) error {
+	var singleStr string
+	err1 := f(&singleStr)
+	if err1 == nil {
+		p.programs = []string{singleStr}
+		return nil
+	}
+	err2 := f(&p.programs)
+	if err2 != nil {
+		return errors.Join(
+			err1,
+			err2,
+		)
+	}
+	return nil
+}
+
 type Window struct {
-	Path string `yaml:"path"`
+	Path    string `yaml:"path"`
-	Name string `yaml:"name"`
+	Name    string `yaml:"name"`
-	Program string `yaml:"program"`
+	Programs Programs `yaml:"program"`
 }
 
 func (w Window) ExpandedPath() string {
@@ -30,7 +54,7 @@ func (w Window) ExpandedPath() string {
 type Config map[string][]Window
 
 const (
-	tmux = "tmux"
+	tmux  = "tmux"
 	mkdir = "mkdir"
 )
 
@@ -74,7 +98,7 @@ func main() {
 		},
 		fuzzyfinder.WithPreviewWindow(
 			func(i, width, height int) string {
-				width = width/2-4
+				width = width/2 - 4
 				if i < 0 {
 					return ""
 				}
@@ -90,8 +114,11 @@ func main() {
 					if window.Path != "" {
 						fmt.Fprintf(&builder, "    path: %s\n", window.Path)
 					}
-					if window.Program != "" {
+					if len(window.Programs.programs) != 0 {
-						fmt.Fprintf(&builder, "    prog: %s\n", window.Program)
+						fmt.Fprintf(&builder, "    program:\n")
+					}
+					for _, prog := range window.Programs.programs {
+						fmt.Fprintf(&builder, "        - %s\n", prog)
 					}
 					fmt.Fprint(&builder, "\n")
 				}
@@ -164,9 +191,9 @@ func NewWindowInSession(seshName string, window Window) {
 	if err != nil {
 		panic(err)
 	}
-	if window.Program != "" {
+	for _, prog := range window.Programs.programs {
 		var carriageReturn = string([]byte{13})
-		cmd = exec.Command(tmux, "send-keys", "-t", fmt.Sprintf("%s:$", seshName), window.Program, carriageReturn)
+		cmd = exec.Command(tmux, "send-keys", "-t", fmt.Sprintf("%s:$", seshName), prog, carriageReturn)
 		cmd.Stdout = os.Stdout
 		cmd.Stderr = os.Stderr
 		cmd.Stdin = os.Stdin

sesh/vendor/github.com/goccy/go-yaml/.codecov.yml

@@ -0,0 +1,31 @@
+codecov:
+  require_ci_to_pass: yes
+
+coverage:
+  precision: 2
+  round: down
+  range: "70...100"
+
+  status:
+    project:
+      default:
+        target: 75%
+        threshold: 2%
+    patch: off
+    changes: no
+
+parsers:
+  gcov:
+    branch_detection:
+      conditional: yes
+      loop: yes
+      method: no
+      macro: no
+
+comment:
+  layout: "header,diff"
+  behavior: default
+  require_changes: no
+
+ignore:
+  - ast

sesh/vendor/github.com/goccy/go-yaml/.gitignore

@@ -0,0 +1,3 @@
+bin/
+.idea/
+cover.out

sesh/vendor/github.com/goccy/go-yaml/.golangci.yml

@@ -0,0 +1,65 @@
+version: "2"
+linters:
+  default: none
+  enable:
+    - errcheck
+    - govet
+    - ineffassign
+    - misspell
+    - perfsprint
+    - staticcheck
+    - unused
+  settings:
+    errcheck:
+      without_tests: true
+    govet:
+      disable:
+        - tests
+    misspell:
+      locale: US
+    perfsprint:
+      int-conversion: false
+      err-error: false
+      errorf: true
+      sprintf1: false
+      strconcat: false
+    staticcheck:
+      checks:
+        - -ST1000
+        - -ST1005
+        - all
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    rules:
+      - linters:
+          - staticcheck
+        path: _test\.go
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gci
+    - gofmt
+  settings:
+    gci:
+      sections:
+        - standard
+        - default
+        - prefix(github.com/goccy/go-yaml)
+        - blank
+        - dot
+    gofmt:
+      simplify: true
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

sesh/vendor/github.com/goccy/go-yaml/CHANGELOG.md

@@ -0,0 +1,186 @@
+# 1.11.2 - 2023-09-15
+
+### Fix bugs
+
+- Fix quoted comments ( #370 )
+- Fix handle of space at start or last ( #376 )
+- Fix sequence with comment ( #390 )
+
+# 1.11.1 - 2023-09-14
+
+### Fix bugs
+
+- Handle `\r` in a double-quoted string the same as `\n` ( #372 )
+- Replace loop with n.Values = append(n.Values, target.Values...) ( #380 )
+- Skip encoding an inline field if it is null ( #386 )
+- Fix comment parsing with null value ( #388 )
+
+# 1.11.0 - 2023-04-03
+
+### Features
+
+- Supports dynamically switch encode and decode processing for a given type
+
+# 1.10.1 - 2023-03-28
+
+### Features
+
+- Quote YAML 1.1 bools at encoding time for compatibility with other legacy parsers
+- Add support of 32-bit architecture
+
+### Fix bugs
+
+- Don't trim all space characters in block style sequence
+- Support strings starting with `@`
+
+# 1.10.0 - 2023-03-01
+
+### Fix bugs
+
+Reversible conversion of comments was not working in various cases, which has been corrected.
+**Breaking Change** exists in the comment map interface. However, if you are dealing with CommentMap directly, there is no problem.
+
+
+# 1.9.8 - 2022-12-19
+
+### Fix feature
+
+- Append new line at the end of file ( #329 )
+
+### Fix bugs
+
+- Fix custom marshaler ( #333, #334 )
+- Fix behavior when struct fields conflicted( #335 )
+- Fix position calculation for literal, folded and raw folded strings ( #330 )
+
+# 1.9.7 - 2022-12-03
+
+### Fix bugs
+
+- Fix handling of quoted map key ( #328 )
+- Fix resusing process of scanning context ( #322 )
+
+## v1.9.6 - 2022-10-26
+
+### New Features
+
+- Introduce MapKeyNode interface to limit node types for map key ( #312 )
+
+### Fix bugs
+
+- Quote strings with special characters in flow mode ( #270 )
+- typeError implements PrettyPrinter interface ( #280 )
+- Fix incorrect const type ( #284 )
+- Fix large literals type inference on 32 bits ( #293 )
+- Fix UTF-8 characters ( #294 )
+- Fix decoding of unknown aliases ( #317 )
+- Fix stream encoder for insert a separator between each encoded document ( #318 )
+
+### Update
+
+- Update golang.org/x/sys ( #289 )
+- Update Go version in CI ( #295 )
+- Add test cases for missing keys to struct literals ( #300 )
+
+## v1.9.5 - 2022-01-12
+
+### New Features
+
+* Add UseSingleQuote option ( #265 )
+
+### Fix bugs
+
+* Preserve defaults while decoding nested structs ( #260 )
+* Fix minor typo in decodeInit error ( #264 )
+* Handle empty sequence entries ( #275 )
+* Fix encoding of sequence with multiline string ( #276 )
+* Fix encoding of BytesMarshaler type ( #277 )
+* Fix indentState logic for multi-line value ( #278 )
+
+## v1.9.4 - 2021-10-12
+
+### Fix bugs
+
+* Keep prev/next reference between tokens containing comments when filtering comment tokens ( #257 )
+* Supports escaping reserved keywords in PathBuilder ( #258 )
+
+## v1.9.3 - 2021-09-07
+
+### New Features
+
+* Support encoding and decoding `time.Duration` fields ( #246 )
+* Allow reserved characters for key name in YAMLPath ( #251 )
+* Support getting YAMLPath from ast.Node ( #252 )
+* Support CommentToMap option ( #253 )
+
+### Fix bugs
+
+* Fix encoding nested sequences with `yaml.IndentSequence` ( #241 )
+* Fix error reporting on inline structs in strict mode ( #244, #245 )
+* Fix encoding of large floats ( #247 )
+
+### Improve workflow
+
+* Migrate CI from CircleCI to GitHub Action ( #249 )
+* Add workflow for ycat ( #250 )
+
+## v1.9.2 - 2021-07-26
+
+### Support WithComment option ( #238 )
+
+`yaml.WithComment` is a option for encoding with comment.
+The position where you want to add a comment is represented by YAMLPath, and it is the key of `yaml.CommentMap`.
+Also, you can select `Head` comment or `Line` comment as the comment type.
+
+## v1.9.1 - 2021-07-20
+
+### Fix DecodeFromNode ( #237 )
+
+- Fix YAML handling where anchor exists
+
+## v1.9.0 - 2021-07-19
+
+### New features
+
+- Support encoding of comment node ( #233 )
+- Support `yaml.NodeToValue(ast.Node, interface{}, ...DecodeOption) error` ( #236 )
+  - Can convert a AST node to a value directly
+
+### Fix decoder for comment
+
+- Fix parsing of literal with comment ( #234 )
+
+### Rename API ( #235 )
+
+- Rename `MarshalWithContext` to `MarshalContext`
+- Rename `UnmarshalWithContext` to `UnmarshalContext`
+
+## v1.8.10 - 2021-07-02
+
+### Fixed bugs
+
+- Fix searching anchor by alias name ( #212 )
+- Fixing Issue 186, scanner should account for newline characters when processing multi-line text. Without this source annotations line/column number (for this and all subsequent tokens) is inconsistent with plain text editors. e.g. https://github.com/goccy/go-yaml/issues/186. This addresses the issue specifically for single and double quote text only. ( #210 )
+- Add error for unterminated flow mapping node ( #213 )
+- Handle missing required field validation ( #221 )
+- Nicely format unexpected node type errors ( #229 )
+- Support to encode map which has defined type key ( #231 )
+
+### New features
+
+- Support sequence indentation by EncodeOption ( #232 )
+
+## v1.8.9 - 2021-03-01
+
+### Fixed bugs
+
+- Fix origin buffer for DocumentHeader and DocumentEnd and Directive
+- Fix origin buffer for anchor value
+- Fix syntax error about map value
+- Fix parsing MergeKey ('<<') characters
+- Fix encoding of float value
+- Fix incorrect column annotation when single or double quotes are used
+
+### New features
+
+- Support to encode/decode of ast.Node directly

sesh/vendor/github.com/goccy/go-yaml/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Masaaki Goshima
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

sesh/vendor/github.com/goccy/go-yaml/Makefile

@@ -0,0 +1,55 @@
+## Location to install dependencies to
+LOCALBIN ?= $(shell pwd)/bin
+TESTMOD := testdata/go_test.mod
+
+$(LOCALBIN):
+	mkdir -p $(LOCALBIN)
+
+.PHONY: test
+test:
+	go test -v -race ./...
+	go test -v -race ./testdata -modfile=$(TESTMOD)
+
+.PHONY: simple-test
+simple-test:
+	go test -v ./...
+	go test -v ./testdata -modfile=$(TESTMOD)
+
+.PHONY: fuzz
+fuzz:
+	go test -fuzz=Fuzz -fuzztime 60s
+
+.PHONY: cover
+cover:
+	go test -coverpkg=.,./ast,./lexer,./parser,./printer,./scanner,./token -coverprofile=cover.out -modfile=$(TESTMOD) ./... ./testdata
+
+.PHONY: cover-html
+cover-html: cover
+	go tool cover -html=cover.out
+
+.PHONY: ycat/build
+ycat/build: $(LOCALBIN)
+	cd ./cmd/ycat && go build -o $(LOCALBIN)/ycat .
+
+.PHONY: lint
+lint: golangci-lint ## Run golangci-lint
+	@$(GOLANGCI_LINT) run
+
+.PHONY: fmt
+fmt: golangci-lint ## Ensure consistent code style
+	@go mod tidy
+	@go fmt ./...
+	@$(GOLANGCI_LINT) run --fix
+
+## Tool Binaries
+GOLANGCI_LINT ?= $(LOCALBIN)/golangci-lint
+
+## Tool Versions
+GOLANGCI_VERSION := 2.1.2
+
+.PHONY: golangci-lint
+.PHONY: $(GOLANGCI_LINT)
+golangci-lint: $(GOLANGCI_LINT) ## Download golangci-lint locally if necessary.
+$(GOLANGCI_LINT): $(LOCALBIN)
+	@test -s $(LOCALBIN)/golangci-lint && $(LOCALBIN)/golangci-lint version --short | grep -q $(GOLANGCI_VERSION) || \
+	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(LOCALBIN) v$(GOLANGCI_VERSION)

sesh/vendor/github.com/goccy/go-yaml/README.md

@@ -0,0 +1,420 @@
+# YAML support for the Go language
+
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/goccy/go-yaml)](https://pkg.go.dev/github.com/goccy/go-yaml)
+![Go](https://github.com/goccy/go-yaml/workflows/Go/badge.svg)
+[![codecov](https://codecov.io/gh/goccy/go-yaml/branch/master/graph/badge.svg)](https://codecov.io/gh/goccy/go-yaml)
+[![Go Report Card](https://goreportcard.com/badge/github.com/goccy/go-yaml)](https://goreportcard.com/report/github.com/goccy/go-yaml)
+
+<img width="300px" src="https://user-images.githubusercontent.com/209884/67159116-64d94b80-f37b-11e9-9b28-f8379636a43c.png"></img>
+
+## This library has **NO** relation to the go-yaml/yaml library
+
+> [!IMPORTANT]
+> This library is developed from scratch to replace [`go-yaml/yaml`](https://github.com/go-yaml/yaml).
+> If you're looking for a better YAML library, this one should be helpful.
+
+# Why a new library?
+
+As of this writing, there already exists a de facto standard library for YAML processing for Go: [https://github.com/go-yaml/yaml](https://github.com/go-yaml/yaml). However, we believe that a new YAML library is necessary for the following reasons:
+
+- Not actively maintained
+- `go-yaml/yaml` has ported the libyaml written in C to Go, so the source code is not written in Go style
+- There is a lot of content that cannot be parsed
+- YAML is often used for configuration, and it is common to include validation along with it. However, the errors in `go-yaml/yaml` are not intuitive, and it is difficult to provide meaningful validation errors
+- When creating tools that use YAML, there are cases where reversible transformation of YAML is required. However, to perform reversible transformations of content that includes Comments or Anchors/Aliases, manipulating the AST is the only option
+- Non-intuitive [Marshaler](https://pkg.go.dev/gopkg.in/yaml.v3#Marshaler) / [Unmarshaler](https://pkg.go.dev/gopkg.in/yaml.v3#Unmarshaler)
+
+By the way, libraries such as [ghodss/yaml](https://github.com/ghodss/yaml) and [sigs.k8s.io/yaml](https://github.com/kubernetes-sigs/yaml) also depend on go-yaml/yaml, so if you are using these libraries, the same issues apply: they cannot parse things that go-yaml/yaml cannot parse, and they inherit many of the problems that go-yaml/yaml has.
+
+# Features
+
+- No dependencies
+- A better parser than `go-yaml/yaml`. 
+  - [Support recursive processing](https://github.com/apple/device-management/blob/release/docs/schema.yaml)
+  - Higher coverage in the [YAML Test Suite](https://github.com/yaml/yaml-test-suite?tab=readme-ov-file)
+    - YAML Test Suite consists of 402 cases in total, of which `gopkg.in/yaml.v3` passes `295`. In addition to passing all those test cases, `goccy/go-yaml` successfully passes nearly 60 additional test cases ( 2024/12/15 )
+    - The test code is [here](https://github.com/goccy/go-yaml/blob/master/yaml_test_suite_test.go#L77)
+- Ease and sustainability of maintenance
+  - The main maintainer is [@goccy](https://github.com/goccy), but we are also building a system to develop as a team with trusted developers
+  - Since it is written from scratch, the code is easy to read for Gophers
+- An API structure that allows the use of not only `Encoder`/`Decoder` but also `Tokenizer` and `Parser` functionalities.
+  - [lexer.Tokenize](https://pkg.go.dev/github.com/goccy/go-yaml@v1.15.4/lexer#Tokenize)
+  - [parser.Parse](https://pkg.go.dev/github.com/goccy/go-yaml@v1.15.4/parser#Parse)
+- Filtering, replacing, and merging YAML content using YAML Path
+- Reversible transformation without using the AST for YAML that includes Anchors, Aliases, and Comments
+- Customize the Marshal/Unmarshal behavior for primitive types and third-party library types ([RegisterCustomMarshaler](https://pkg.go.dev/github.com/goccy/go-yaml#RegisterCustomMarshaler), [RegisterCustomUnmarshaler](https://pkg.go.dev/github.com/goccy/go-yaml#RegisterCustomUnmarshaler))
+- Respects `encoding/json` behavior
+  - Accept the `json` tag. Note that not all options from the `json` tag will have significance when parsing YAML documents. If both tags exist, `yaml` tag will take precedence.
+  - [json.Marshaler](https://pkg.go.dev/encoding/json#Marshaler) style [marshaler](https://pkg.go.dev/github.com/goccy/go-yaml#BytesMarshaler)
+  - [json.Unmarshaler](https://pkg.go.dev/encoding/json#Unmarshaler) style [unmarshaler](https://pkg.go.dev/github.com/goccy/go-yaml#BytesUnmarshaler)
+  - Options for using `MarshalJSON` and `UnmarshalJSON` ([UseJSONMarshaler](https://pkg.go.dev/github.com/goccy/go-yaml#UseJSONMarshaler), [UseJSONUnmarshaler](https://pkg.go.dev/github.com/goccy/go-yaml#UseJSONUnmarshaler))
+- Pretty format for error notifications
+- Smart validation processing combined with [go-playground/validator](https://github.com/go-playground/validator)
+  - [example test code is here](https://github.com/goccy/go-yaml/blob/45889c98b0a0967240eb595a1bd6896e2f575106/testdata/validate_test.go#L12)
+- Allow referencing elements declared in another file via anchors
+
+# Users
+
+The repositories that use goccy/go-yaml are listed here.
+
+- https://github.com/goccy/go-yaml/wiki/Users
+
+The source data is [here](https://github.com/goccy/go-yaml/network/dependents). 
+It is already being used in many repositories. Now it's your turn 😄
+
+# Playground
+
+The Playground visualizes how go-yaml processes YAML text. Use it to assist with your debugging or issue reporting.
+
+https://goccy.github.io/go-yaml
+
+# Installation
+
+```sh
+go get github.com/goccy/go-yaml
+```
+
+# Synopsis
+
+## 1. Simple Encode/Decode
+
+Has an interface like `go-yaml/yaml` using `reflect`
+
+```go
+var v struct {
+	A int
+	B string
+}
+v.A = 1
+v.B = "hello"
+bytes, err := yaml.Marshal(v)
+if err != nil {
+	//...
+}
+fmt.Println(string(bytes)) // "a: 1\nb: hello\n"
+```
+
+```go
+	yml := `
+%YAML 1.2
+---
+a: 1
+b: c
+`
+var v struct {
+	A int
+	B string
+}
+if err := yaml.Unmarshal([]byte(yml), &v); err != nil {
+	//...
+}
+```
+
+To control marshal/unmarshal behavior, you can use the `yaml` tag.
+
+```go
+	yml := `---
+foo: 1
+bar: c
+`
+var v struct {
+	A int    `yaml:"foo"`
+	B string `yaml:"bar"`
+}
+if err := yaml.Unmarshal([]byte(yml), &v); err != nil {
+	//...
+}
+```
+
+For convenience, we also accept the `json` tag. Note that not all options from
+the `json` tag will have significance when parsing YAML documents. If both
+tags exist, `yaml` tag will take precedence.
+
+```go
+	yml := `---
+foo: 1
+bar: c
+`
+var v struct {
+	A int    `json:"foo"`
+	B string `json:"bar"`
+}
+if err := yaml.Unmarshal([]byte(yml), &v); err != nil {
+	//...
+}
+```
+
+For custom marshal/unmarshaling, implement either `Bytes` or `Interface` variant of marshaler/unmarshaler. The difference is that while `BytesMarshaler`/`BytesUnmarshaler` behaves like [`encoding/json`](https://pkg.go.dev/encoding/json) and `InterfaceMarshaler`/`InterfaceUnmarshaler` behaves like [`gopkg.in/yaml.v2`](https://pkg.go.dev/gopkg.in/yaml.v2).
+
+Semantically both are the same, but they differ in performance. Because indentation matters in YAML, you cannot simply accept a valid YAML fragment from a Marshaler, and expect it to work when it is attached to the parent container's serialized form. Therefore when we receive use the `BytesMarshaler`, which returns `[]byte`, we must decode it once to figure out how to make it work in the given context. If you use the `InterfaceMarshaler`, we can skip the decoding.
+
+If you are repeatedly marshaling complex objects, the latter is always better
+performance wise. But if you are, for example, just providing a choice between
+a config file format that is read only once, the former is probably easier to
+code.
+
+## 2. Reference elements declared in another file
+
+`testdata` directory contains `anchor.yml` file:
+
+```shell
+├── testdata
+   └── anchor.yml
+```
+
+And `anchor.yml` is defined as follows:
+
+```yaml
+a: &a
+  b: 1
+  c: hello
+```
+
+Then, if `yaml.ReferenceDirs("testdata")` option is passed to `yaml.Decoder`, 
+ `Decoder` tries to find the anchor definition from YAML files the under `testdata` directory.
+ 
+```go
+buf := bytes.NewBufferString("a: *a\n")
+dec := yaml.NewDecoder(buf, yaml.ReferenceDirs("testdata"))
+var v struct {
+	A struct {
+		B int
+		C string
+	}
+}
+if err := dec.Decode(&v); err != nil {
+	//...
+}
+fmt.Printf("%+v\n", v) // {A:{B:1 C:hello}}
+```
+
+## 3. Encode with `Anchor` and `Alias`
+
+### 3.1. Explicitly declared `Anchor` name and `Alias` name
+
+If you want to use `anchor`, you can define it as a struct tag.
+If the value specified for an anchor is a pointer type and the same address as the pointer is found, the value is automatically set to alias.
+If an explicit alias name is specified, an error is raised if its value is different from the value specified in the anchor.
+
+```go
+type T struct {
+  A int
+  B string
+}
+var v struct {
+  C *T `yaml:"c,anchor=x"`
+  D *T `yaml:"d,alias=x"`
+}
+v.C = &T{A: 1, B: "hello"}
+v.D = v.C
+bytes, err := yaml.Marshal(v)
+if err != nil {
+  panic(err)
+}
+fmt.Println(string(bytes))
+/*
+c: &x
+  a: 1
+  b: hello
+d: *x
+*/
+```
+
+### 3.2. Implicitly declared `Anchor` and `Alias` names
+
+If you do not explicitly declare the anchor name, the default behavior is to
+use the equivalent of `strings.ToLower($FieldName)` as the name of the anchor.
+If the value specified for an anchor is a pointer type and the same address as the pointer is found, the value is automatically set to alias.
+
+```go
+type T struct {
+	I int
+	S string
+}
+var v struct {
+	A *T `yaml:"a,anchor"`
+	B *T `yaml:"b,anchor"`
+	C *T `yaml:"c"`
+	D *T `yaml:"d"`
+}
+v.A = &T{I: 1, S: "hello"}
+v.B = &T{I: 2, S: "world"}
+v.C = v.A // C has same pointer address to A
+v.D = v.B // D has same pointer address to B
+bytes, err := yaml.Marshal(v)
+if err != nil {
+	//...
+}
+fmt.Println(string(bytes)) 
+/*
+a: &a
+  i: 1
+  s: hello
+b: &b
+  i: 2
+  s: world
+c: *a
+d: *b
+*/
+```
+
+### 3.3 MergeKey and Alias
+
+Merge key and alias ( `<<: *alias` ) can be used by embedding a structure with the `inline,alias` tag.
+
+```go
+type Person struct {
+	*Person `yaml:",omitempty,inline,alias"` // embed Person type for default value
+	Name    string `yaml:",omitempty"`
+	Age     int    `yaml:",omitempty"`
+}
+defaultPerson := &Person{
+	Name: "John Smith",
+	Age:  20,
+}
+people := []*Person{
+	{
+		Person: defaultPerson, // assign default value
+		Name:   "Ken",         // override Name property
+		Age:    10,            // override Age property
+	},
+	{
+		Person: defaultPerson, // assign default value only
+	},
+}
+var doc struct {
+	Default *Person   `yaml:"default,anchor"`
+	People  []*Person `yaml:"people"`
+}
+doc.Default = defaultPerson
+doc.People = people
+bytes, err := yaml.Marshal(doc)
+if err != nil {
+	//...
+}
+fmt.Println(string(bytes))
+/*
+default: &default
+  name: John Smith
+  age: 20
+people:
+- <<: *default
+  name: Ken
+  age: 10
+- <<: *default
+*/
+```
+
+## 4. Pretty Formatted Errors
+
+Error values produced during parsing have two extra features over regular
+error values.
+
+First, by default, they contain extra information on the location of the error
+from the source YAML document, to make it easier to find the error location.
+
+Second, the error messages can optionally be colorized.
+
+If you would like to control exactly how the output looks like, consider
+using  `yaml.FormatError`, which accepts two boolean values to
+control turning these features on or off.
+
+<img src="https://user-images.githubusercontent.com/209884/67358124-587f0980-f59a-11e9-96fc-7205aab77695.png"></img>
+
+## 5. Use YAMLPath
+
+```go
+yml := `
+store:
+  book:
+    - author: john
+      price: 10
+    - author: ken
+      price: 12
+  bicycle:
+    color: red
+    price: 19.95
+`
+path, err := yaml.PathString("$.store.book[*].author")
+if err != nil {
+  //...
+}
+var authors []string
+if err := path.Read(strings.NewReader(yml), &authors); err != nil {
+  //...
+}
+fmt.Println(authors)
+// [john ken]
+```
+
+### 5.1 Print customized error with YAML source code
+
+```go
+package main
+
+import (
+  "fmt"
+
+  "github.com/goccy/go-yaml"
+)
+
+func main() {
+  yml := `
+a: 1
+b: "hello"
+`
+  var v struct {
+    A int
+    B string
+  }
+  if err := yaml.Unmarshal([]byte(yml), &v); err != nil {
+    panic(err)
+  }
+  if v.A != 2 {
+    // output error with YAML source
+    path, err := yaml.PathString("$.a")
+    if err != nil {
+      panic(err)
+    }
+    source, err := path.AnnotateSource([]byte(yml), true)
+    if err != nil {
+      panic(err)
+    }
+    fmt.Printf("a value expected 2 but actual %d:\n%s\n", v.A, string(source))
+  }
+}
+```
+
+output result is the following:
+
+<img src="https://user-images.githubusercontent.com/209884/84148813-7aca8680-aa9a-11ea-8fc9-37dece2ebdac.png"></img>
+
+
+# Tools
+
+## ycat
+
+print yaml file with color
+
+<img width="713" alt="ycat" src="https://user-images.githubusercontent.com/209884/66986084-19b00600-f0f9-11e9-9f0e-1f91eb072fe0.png">
+
+### Installation
+
+```sh
+git clone https://github.com/goccy/go-yaml.git
+cd go-yaml/cmd/ycat && go install .
+```
+
+
+# For Developers
+
+> [!NOTE]
+> In this project, we manage such test code under the `testdata` directory to avoid adding dependencies  on libraries that are only needed for testing to the top `go.mod` file. Therefore, if you want to add test cases that use 3rd party libraries, please add the test code to the `testdata` directory.
+
+# Looking for Sponsors
+
+I'm looking for sponsors this library. This library is being developed as a personal project in my spare time. If you want a quick response or problem resolution when using this library in your project, please register as a [sponsor](https://github.com/sponsors/goccy). I will cooperate as much as possible. Of course, this library is developed as an MIT license, so you can use it freely for free.
+
+# License
+
+MIT

sesh/vendor/github.com/goccy/go-yaml/context.go

@@ -0,0 +1,37 @@
+package yaml
+
+import "context"
+
+type (
+	ctxMergeKey  struct{}
+	ctxAnchorKey struct{}
+)
+
+func withMerge(ctx context.Context) context.Context {
+	return context.WithValue(ctx, ctxMergeKey{}, true)
+}
+
+func isMerge(ctx context.Context) bool {
+	v, ok := ctx.Value(ctxMergeKey{}).(bool)
+	if !ok {
+		return false
+	}
+	return v
+}
+
+func withAnchor(ctx context.Context, name string) context.Context {
+	anchorMap := getAnchorMap(ctx)
+	if anchorMap == nil {
+		anchorMap = make(map[string]struct{})
+	}
+	anchorMap[name] = struct{}{}
+	return context.WithValue(ctx, ctxAnchorKey{}, anchorMap)
+}
+
+func getAnchorMap(ctx context.Context) map[string]struct{} {
+	v, ok := ctx.Value(ctxAnchorKey{}).(map[string]struct{})
+	if !ok {
+		return nil
+	}
+	return v
+}

sesh/vendor/github.com/goccy/go-yaml/error.go

@@ -0,0 +1,77 @@
+package yaml
+
+import (
+	"fmt"
+
+	"github.com/goccy/go-yaml/ast"
+	"github.com/goccy/go-yaml/internal/errors"
+)
+
+var (
+	ErrInvalidQuery               = errors.New("invalid query")
+	ErrInvalidPath                = errors.New("invalid path instance")
+	ErrInvalidPathString          = errors.New("invalid path string")
+	ErrNotFoundNode               = errors.New("node not found")
+	ErrUnknownCommentPositionType = errors.New("unknown comment position type")
+	ErrInvalidCommentMapValue     = errors.New("invalid comment map value. it must be not nil value")
+	ErrDecodeRequiredPointerType  = errors.New("required pointer type value")
+	ErrExceededMaxDepth           = errors.New("exceeded max depth")
+	FormatErrorWithToken          = errors.FormatError
+)
+
+type (
+	SyntaxError             = errors.SyntaxError
+	TypeError               = errors.TypeError
+	OverflowError           = errors.OverflowError
+	DuplicateKeyError       = errors.DuplicateKeyError
+	UnknownFieldError       = errors.UnknownFieldError
+	UnexpectedNodeTypeError = errors.UnexpectedNodeTypeError
+	Error                   = errors.Error
+)
+
+func ErrUnsupportedHeadPositionType(node ast.Node) error {
+	return fmt.Errorf("unsupported comment head position for %s", node.Type())
+}
+
+func ErrUnsupportedLinePositionType(node ast.Node) error {
+	return fmt.Errorf("unsupported comment line position for %s", node.Type())
+}
+
+func ErrUnsupportedFootPositionType(node ast.Node) error {
+	return fmt.Errorf("unsupported comment foot position for %s", node.Type())
+}
+
+// IsInvalidQueryError whether err is ErrInvalidQuery or not.
+func IsInvalidQueryError(err error) bool {
+	return errors.Is(err, ErrInvalidQuery)
+}
+
+// IsInvalidPathError whether err is ErrInvalidPath or not.
+func IsInvalidPathError(err error) bool {
+	return errors.Is(err, ErrInvalidPath)
+}
+
+// IsInvalidPathStringError whether err is ErrInvalidPathString or not.
+func IsInvalidPathStringError(err error) bool {
+	return errors.Is(err, ErrInvalidPathString)
+}
+
+// IsNotFoundNodeError whether err is ErrNotFoundNode or not.
+func IsNotFoundNodeError(err error) bool {
+	return errors.Is(err, ErrNotFoundNode)
+}
+
+// IsInvalidTokenTypeError whether err is ast.ErrInvalidTokenType or not.
+func IsInvalidTokenTypeError(err error) bool {
+	return errors.Is(err, ast.ErrInvalidTokenType)
+}
+
+// IsInvalidAnchorNameError whether err is ast.ErrInvalidAnchorName or not.
+func IsInvalidAnchorNameError(err error) bool {
+	return errors.Is(err, ast.ErrInvalidAnchorName)
+}
+
+// IsInvalidAliasNameError whether err is ast.ErrInvalidAliasName or not.
+func IsInvalidAliasNameError(err error) bool {
+	return errors.Is(err, ast.ErrInvalidAliasName)
+}

sesh/vendor/github.com/goccy/go-yaml/internal/errors/error.go

@@ -0,0 +1,246 @@
+package errors
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+
+	"github.com/goccy/go-yaml/ast"
+	"github.com/goccy/go-yaml/printer"
+	"github.com/goccy/go-yaml/token"
+)
+
+var (
+	As  = errors.As
+	Is  = errors.Is
+	New = errors.New
+)
+
+const (
+	defaultFormatColor   = false
+	defaultIncludeSource = true
+)
+
+type Error interface {
+	error
+	GetToken() *token.Token
+	GetMessage() string
+	FormatError(bool, bool) string
+}
+
+var (
+	_ Error = new(SyntaxError)
+	_ Error = new(TypeError)
+	_ Error = new(OverflowError)
+	_ Error = new(DuplicateKeyError)
+	_ Error = new(UnknownFieldError)
+	_ Error = new(UnexpectedNodeTypeError)
+)
+
+type SyntaxError struct {
+	Message string
+	Token   *token.Token
+}
+
+type TypeError struct {
+	DstType         reflect.Type
+	SrcType         reflect.Type
+	StructFieldName *string
+	Token           *token.Token
+}
+
+type OverflowError struct {
+	DstType reflect.Type
+	SrcNum  string
+	Token   *token.Token
+}
+
+type DuplicateKeyError struct {
+	Message string
+	Token   *token.Token
+}
+
+type UnknownFieldError struct {
+	Message string
+	Token   *token.Token
+}
+
+type UnexpectedNodeTypeError struct {
+	Actual   ast.NodeType
+	Expected ast.NodeType
+	Token    *token.Token
+}
+
+// ErrSyntax create syntax error instance with message and token
+func ErrSyntax(msg string, tk *token.Token) *SyntaxError {
+	return &SyntaxError{
+		Message: msg,
+		Token:   tk,
+	}
+}
+
+// ErrOverflow creates an overflow error instance with message and a token.
+func ErrOverflow(dstType reflect.Type, num string, tk *token.Token) *OverflowError {
+	return &OverflowError{
+		DstType: dstType,
+		SrcNum:  num,
+		Token:   tk,
+	}
+}
+
+// ErrTypeMismatch cerates an type mismatch error instance with token.
+func ErrTypeMismatch(dstType, srcType reflect.Type, token *token.Token) *TypeError {
+	return &TypeError{
+		DstType: dstType,
+		SrcType: srcType,
+		Token:   token,
+	}
+}
+
+// ErrDuplicateKey creates an duplicate key error instance with token.
+func ErrDuplicateKey(msg string, tk *token.Token) *DuplicateKeyError {
+	return &DuplicateKeyError{
+		Message: msg,
+		Token:   tk,
+	}
+}
+
+// ErrUnknownField creates an unknown field error instance with token.
+func ErrUnknownField(msg string, tk *token.Token) *UnknownFieldError {
+	return &UnknownFieldError{
+		Message: msg,
+		Token:   tk,
+	}
+}
+
+func ErrUnexpectedNodeType(actual, expected ast.NodeType, tk *token.Token) *UnexpectedNodeTypeError {
+	return &UnexpectedNodeTypeError{
+		Actual:   actual,
+		Expected: expected,
+		Token:    tk,
+	}
+}
+
+func (e *SyntaxError) GetMessage() string {
+	return e.Message
+}
+
+func (e *SyntaxError) GetToken() *token.Token {
+	return e.Token
+}
+
+func (e *SyntaxError) Error() string {
+	return e.FormatError(defaultFormatColor, defaultIncludeSource)
+}
+
+func (e *SyntaxError) FormatError(colored, inclSource bool) string {
+	return FormatError(e.Message, e.Token, colored, inclSource)
+}
+
+func (e *OverflowError) GetMessage() string {
+	return e.msg()
+}
+
+func (e *OverflowError) GetToken() *token.Token {
+	return e.Token
+}
+
+func (e *OverflowError) Error() string {
+	return e.FormatError(defaultFormatColor, defaultIncludeSource)
+}
+
+func (e *OverflowError) FormatError(colored, inclSource bool) string {
+	return FormatError(e.msg(), e.Token, colored, inclSource)
+}
+
+func (e *OverflowError) msg() string {
+	return fmt.Sprintf("cannot unmarshal %s into Go value of type %s ( overflow )", e.SrcNum, e.DstType)
+}
+
+func (e *TypeError) msg() string {
+	if e.StructFieldName != nil {
+		return fmt.Sprintf("cannot unmarshal %s into Go struct field %s of type %s", e.SrcType, *e.StructFieldName, e.DstType)
+	}
+	return fmt.Sprintf("cannot unmarshal %s into Go value of type %s", e.SrcType, e.DstType)
+}
+
+func (e *TypeError) GetMessage() string {
+	return e.msg()
+}
+
+func (e *TypeError) GetToken() *token.Token {
+	return e.Token
+}
+
+func (e *TypeError) Error() string {
+	return e.FormatError(defaultFormatColor, defaultIncludeSource)
+}
+
+func (e *TypeError) FormatError(colored, inclSource bool) string {
+	return FormatError(e.msg(), e.Token, colored, inclSource)
+}
+
+func (e *DuplicateKeyError) GetMessage() string {
+	return e.Message
+}
+
+func (e *DuplicateKeyError) GetToken() *token.Token {
+	return e.Token
+}
+
+func (e *DuplicateKeyError) Error() string {
+	return e.FormatError(defaultFormatColor, defaultIncludeSource)
+}
+
+func (e *DuplicateKeyError) FormatError(colored, inclSource bool) string {
+	return FormatError(e.Message, e.Token, colored, inclSource)
+}
+
+func (e *UnknownFieldError) GetMessage() string {
+	return e.Message
+}
+
+func (e *UnknownFieldError) GetToken() *token.Token {
+	return e.Token
+}
+
+func (e *UnknownFieldError) Error() string {
+	return e.FormatError(defaultFormatColor, defaultIncludeSource)
+}
+
+func (e *UnknownFieldError) FormatError(colored, inclSource bool) string {
+	return FormatError(e.Message, e.Token, colored, inclSource)
+}
+
+func (e *UnexpectedNodeTypeError) GetMessage() string {
+	return e.msg()
+}
+
+func (e *UnexpectedNodeTypeError) GetToken() *token.Token {
+	return e.Token
+}
+
+func (e *UnexpectedNodeTypeError) Error() string {
+	return e.FormatError(defaultFormatColor, defaultIncludeSource)
+}
+
+func (e *UnexpectedNodeTypeError) FormatError(colored, inclSource bool) string {
+	return FormatError(e.msg(), e.Token, colored, inclSource)
+}
+
+func (e *UnexpectedNodeTypeError) msg() string {
+	return fmt.Sprintf("%s was used where %s is expected", e.Actual.YAMLName(), e.Expected.YAMLName())
+}
+
+func FormatError(errMsg string, token *token.Token, colored, inclSource bool) string {
+	var pp printer.Printer
+	if token == nil {
+		return pp.PrintErrorMessage(errMsg, colored)
+	}
+	pos := fmt.Sprintf("[%d:%d] ", token.Position.Line, token.Position.Column)
+	msg := pp.PrintErrorMessage(fmt.Sprintf("%s%s", pos, errMsg), colored)
+	if inclSource {
+		msg += "\n" + pp.PrintErrorToken(token, colored)
+	}
+	return msg
+}

sesh/vendor/github.com/goccy/go-yaml/internal/format/format.go

@@ -0,0 +1,541 @@
+package format
+
+import (
+	"strings"
+
+	"github.com/goccy/go-yaml/ast"
+	"github.com/goccy/go-yaml/token"
+)
+
+func FormatNodeWithResolvedAlias(n ast.Node, anchorNodeMap map[string]ast.Node) string {
+	tk := getFirstToken(n)
+	if tk == nil {
+		return ""
+	}
+	formatter := newFormatter(tk, hasComment(n))
+	formatter.anchorNodeMap = anchorNodeMap
+	return formatter.format(n)
+}
+
+func FormatNode(n ast.Node) string {
+	tk := getFirstToken(n)
+	if tk == nil {
+		return ""
+	}
+	return newFormatter(tk, hasComment(n)).format(n)
+}
+
+func FormatFile(file *ast.File) string {
+	if len(file.Docs) == 0 {
+		return ""
+	}
+	tk := getFirstToken(file.Docs[0])
+	if tk == nil {
+		return ""
+	}
+	return newFormatter(tk, hasCommentFile(file)).formatFile(file)
+}
+
+func hasCommentFile(f *ast.File) bool {
+	for _, doc := range f.Docs {
+		if hasComment(doc.Body) {
+			return true
+		}
+	}
+	return false
+}
+
+func hasComment(n ast.Node) bool {
+	if n == nil {
+		return false
+	}
+	switch nn := n.(type) {
+	case *ast.DocumentNode:
+		return hasComment(nn.Body)
+	case *ast.NullNode:
+		return nn.Comment != nil
+	case *ast.BoolNode:
+		return nn.Comment != nil
+	case *ast.IntegerNode:
+		return nn.Comment != nil
+	case *ast.FloatNode:
+		return nn.Comment != nil
+	case *ast.StringNode:
+		return nn.Comment != nil
+	case *ast.InfinityNode:
+		return nn.Comment != nil
+	case *ast.NanNode:
+		return nn.Comment != nil
+	case *ast.LiteralNode:
+		return nn.Comment != nil
+	case *ast.DirectiveNode:
+		if nn.Comment != nil {
+			return true
+		}
+		for _, value := range nn.Values {
+			if hasComment(value) {
+				return true
+			}
+		}
+	case *ast.TagNode:
+		if nn.Comment != nil {
+			return true
+		}
+		return hasComment(nn.Value)
+	case *ast.MappingNode:
+		if nn.Comment != nil || nn.FootComment != nil {
+			return true
+		}
+		for _, value := range nn.Values {
+			if value.Comment != nil || value.FootComment != nil {
+				return true
+			}
+			if hasComment(value.Key) {
+				return true
+			}
+			if hasComment(value.Value) {
+				return true
+			}
+		}
+	case *ast.MappingKeyNode:
+		return nn.Comment != nil
+	case *ast.MergeKeyNode:
+		return nn.Comment != nil
+	case *ast.SequenceNode:
+		if nn.Comment != nil || nn.FootComment != nil {
+			return true
+		}
+		for _, entry := range nn.Entries {
+			if entry.Comment != nil || entry.HeadComment != nil || entry.LineComment != nil {
+				return true
+			}
+			if hasComment(entry.Value) {
+				return true
+			}
+		}
+	case *ast.AnchorNode:
+		if nn.Comment != nil {
+			return true
+		}
+		if hasComment(nn.Name) || hasComment(nn.Value) {
+			return true
+		}
+	case *ast.AliasNode:
+		if nn.Comment != nil {
+			return true
+		}
+		if hasComment(nn.Value) {
+			return true
+		}
+	}
+	return false
+}
+
+func getFirstToken(n ast.Node) *token.Token {
+	if n == nil {
+		return nil
+	}
+	switch nn := n.(type) {
+	case *ast.DocumentNode:
+		if nn.Start != nil {
+			return nn.Start
+		}
+		return getFirstToken(nn.Body)
+	case *ast.NullNode:
+		return nn.Token
+	case *ast.BoolNode:
+		return nn.Token
+	case *ast.IntegerNode:
+		return nn.Token
+	case *ast.FloatNode:
+		return nn.Token
+	case *ast.StringNode:
+		return nn.Token
+	case *ast.InfinityNode:
+		return nn.Token
+	case *ast.NanNode:
+		return nn.Token
+	case *ast.LiteralNode:
+		return nn.Start
+	case *ast.DirectiveNode:
+		return nn.Start
+	case *ast.TagNode:
+		return nn.Start
+	case *ast.MappingNode:
+		if nn.IsFlowStyle {
+			return nn.Start
+		}
+		if len(nn.Values) == 0 {
+			return nn.Start
+		}
+		return getFirstToken(nn.Values[0].Key)
+	case *ast.MappingKeyNode:
+		return nn.Start
+	case *ast.MergeKeyNode:
+		return nn.Token
+	case *ast.SequenceNode:
+		return nn.Start
+	case *ast.AnchorNode:
+		return nn.Start
+	case *ast.AliasNode:
+		return nn.Start
+	}
+	return nil
+}
+
+type Formatter struct {
+	existsComment    bool
+	tokenToOriginMap map[*token.Token]string
+	anchorNodeMap    map[string]ast.Node
+}
+
+func newFormatter(tk *token.Token, existsComment bool) *Formatter {
+	tokenToOriginMap := make(map[*token.Token]string)
+	for tk.Prev != nil {
+		tk = tk.Prev
+	}
+	tokenToOriginMap[tk] = tk.Origin
+
+	var origin string
+	for tk.Next != nil {
+		tk = tk.Next
+		if tk.Type == token.CommentType {
+			origin += strings.Repeat("\n", strings.Count(normalizeNewLineChars(tk.Origin), "\n"))
+			continue
+		}
+		origin += tk.Origin
+		tokenToOriginMap[tk] = origin
+		origin = ""
+	}
+	return &Formatter{
+		existsComment:    existsComment,
+		tokenToOriginMap: tokenToOriginMap,
+	}
+}
+
+func getIndentNumByFirstLineToken(tk *token.Token) int {
+	defaultIndent := tk.Position.Column - 1
+
+	// key: value
+	//    ^
+	//   next
+	if tk.Type == token.SequenceEntryType {
+		// If the current token is the sequence entry.
+		// the indent is calculated from the column value of the current token.
+		return defaultIndent
+	}
+
+	// key: value
+	//    ^
+	//   next
+	if tk.Next != nil && tk.Next.Type == token.MappingValueType {
+		// If the current token is the key in the mapping-value,
+		// the indent is calculated from the column value of the current token.
+		return defaultIndent
+	}
+
+	if tk.Prev == nil {
+		return defaultIndent
+	}
+	prev := tk.Prev
+
+	// key: value
+	//    ^
+	//   prev
+	if prev.Type == token.MappingValueType {
+		// If the current token is the value in the mapping-value,
+		// the indent is calculated from the column value of the key two steps back.
+		if prev.Prev == nil {
+			return defaultIndent
+		}
+		return prev.Prev.Position.Column - 1
+	}
+
+	// - value
+	// ^
+	// prev
+	if prev.Type == token.SequenceEntryType {
+		// If the value is not a mapping-value and the previous token was a sequence entry,
+		// the indent is calculated using the column value of the sequence entry token.
+		return prev.Position.Column - 1
+	}
+
+	return defaultIndent
+}
+
+func (f *Formatter) format(n ast.Node) string {
+	return f.trimSpacePrefix(
+		f.trimIndentSpace(
+			getIndentNumByFirstLineToken(getFirstToken(n)),
+			f.trimNewLineCharPrefix(f.formatNode(n)),
+		),
+	)
+}
+
+func (f *Formatter) formatFile(file *ast.File) string {
+	if len(file.Docs) == 0 {
+		return ""
+	}
+	var ret string
+	for _, doc := range file.Docs {
+		ret += f.formatDocument(doc)
+	}
+	return ret
+}
+
+func (f *Formatter) origin(tk *token.Token) string {
+	if tk == nil {
+		return ""
+	}
+	if f.existsComment {
+		return tk.Origin
+	}
+	return f.tokenToOriginMap[tk]
+}
+
+func (f *Formatter) formatDocument(n *ast.DocumentNode) string {
+	return f.origin(n.Start) + f.formatNode(n.Body) + f.origin(n.End)
+}
+
+func (f *Formatter) formatNull(n *ast.NullNode) string {
+	return f.origin(n.Token) + f.formatCommentGroup(n.Comment)
+}
+
+func (f *Formatter) formatString(n *ast.StringNode) string {
+	return f.origin(n.Token) + f.formatCommentGroup(n.Comment)
+}
+
+func (f *Formatter) formatInteger(n *ast.IntegerNode) string {
+	return f.origin(n.Token) + f.formatCommentGroup(n.Comment)
+}
+
+func (f *Formatter) formatFloat(n *ast.FloatNode) string {
+	return f.origin(n.Token) + f.formatCommentGroup(n.Comment)
+}
+
+func (f *Formatter) formatBool(n *ast.BoolNode) string {
+	return f.origin(n.Token) + f.formatCommentGroup(n.Comment)
+}
+
+func (f *Formatter) formatInfinity(n *ast.InfinityNode) string {
+	return f.origin(n.Token) + f.formatCommentGroup(n.Comment)
+}
+
+func (f *Formatter) formatNan(n *ast.NanNode) string {
+	return f.origin(n.Token) + f.formatCommentGroup(n.Comment)
+}
+
+func (f *Formatter) formatLiteral(n *ast.LiteralNode) string {
+	return f.origin(n.Start) + f.formatCommentGroup(n.Comment) + f.origin(n.Value.Token)
+}
+
+func (f *Formatter) formatMergeKey(n *ast.MergeKeyNode) string {
+	return f.origin(n.Token)
+}
+
+func (f *Formatter) formatMappingValue(n *ast.MappingValueNode) string {
+	return f.formatCommentGroup(n.Comment) +
+		f.origin(n.Key.GetToken()) + ":" + f.formatCommentGroup(n.Key.GetComment()) + f.formatNode(n.Value) +
+		f.formatCommentGroup(n.FootComment)
+}
+
+func (f *Formatter) formatDirective(n *ast.DirectiveNode) string {
+	ret := f.origin(n.Start) + f.formatNode(n.Name)
+	for _, val := range n.Values {
+		ret += f.formatNode(val)
+	}
+	return ret
+}
+
+func (f *Formatter) formatMapping(n *ast.MappingNode) string {
+	var ret string
+	if n.IsFlowStyle {
+		ret = f.origin(n.Start)
+	} else {
+		ret += f.formatCommentGroup(n.Comment)
+	}
+	for _, value := range n.Values {
+		if value.CollectEntry != nil {
+			ret += f.origin(value.CollectEntry)
+		}
+		ret += f.formatMappingValue(value)
+	}
+	if n.IsFlowStyle {
+		ret += f.origin(n.End)
+		ret += f.formatCommentGroup(n.Comment)
+	}
+	return ret
+}
+
+func (f *Formatter) formatTag(n *ast.TagNode) string {
+	return f.origin(n.Start) + f.formatNode(n.Value)
+}
+
+func (f *Formatter) formatMappingKey(n *ast.MappingKeyNode) string {
+	return f.origin(n.Start) + f.formatNode(n.Value)
+}
+
+func (f *Formatter) formatSequence(n *ast.SequenceNode) string {
+	var ret string
+	if n.IsFlowStyle {
+		ret = f.origin(n.Start)
+	} else {
+		// add head comment.
+		ret += f.formatCommentGroup(n.Comment)
+	}
+	for _, entry := range n.Entries {
+		ret += f.formatNode(entry)
+	}
+	if n.IsFlowStyle {
+		ret += f.origin(n.End)
+		ret += f.formatCommentGroup(n.Comment)
+	}
+	ret += f.formatCommentGroup(n.FootComment)
+	return ret
+}
+
+func (f *Formatter) formatSequenceEntry(n *ast.SequenceEntryNode) string {
+	return f.formatCommentGroup(n.HeadComment) + f.origin(n.Start) + f.formatCommentGroup(n.LineComment) + f.formatNode(n.Value)
+}
+
+func (f *Formatter) formatAnchor(n *ast.AnchorNode) string {
+	return f.origin(n.Start) + f.formatNode(n.Name) + f.formatNode(n.Value)
+}
+
+func (f *Formatter) formatAlias(n *ast.AliasNode) string {
+	if f.anchorNodeMap != nil {
+		anchorName := n.Value.GetToken().Value
+		node := f.anchorNodeMap[anchorName]
+		if node != nil {
+			formatted := f.formatNode(node)
+			// If formatted text contains newline characters, indentation needs to be considered.
+			if strings.Contains(formatted, "\n") {
+				// If the first character is not a newline, the first line should be output without indentation.
+				isIgnoredFirstLine := !strings.HasPrefix(formatted, "\n")
+				formatted = f.addIndentSpace(n.GetToken().Position.IndentNum, formatted, isIgnoredFirstLine)
+			}
+			return formatted
+		}
+	}
+	return f.origin(n.Start) + f.formatNode(n.Value)
+}
+
+func (f *Formatter) formatNode(n ast.Node) string {
+	switch nn := n.(type) {
+	case *ast.DocumentNode:
+		return f.formatDocument(nn)
+	case *ast.NullNode:
+		return f.formatNull(nn)
+	case *ast.BoolNode:
+		return f.formatBool(nn)
+	case *ast.IntegerNode:
+		return f.formatInteger(nn)
+	case *ast.FloatNode:
+		return f.formatFloat(nn)
+	case *ast.StringNode:
+		return f.formatString(nn)
+	case *ast.InfinityNode:
+		return f.formatInfinity(nn)
+	case *ast.NanNode:
+		return f.formatNan(nn)
+	case *ast.LiteralNode:
+		return f.formatLiteral(nn)
+	case *ast.DirectiveNode:
+		return f.formatDirective(nn)
+	case *ast.TagNode:
+		return f.formatTag(nn)
+	case *ast.MappingNode:
+		return f.formatMapping(nn)
+	case *ast.MappingKeyNode:
+		return f.formatMappingKey(nn)
+	case *ast.MappingValueNode:
+		return f.formatMappingValue(nn)
+	case *ast.MergeKeyNode:
+		return f.formatMergeKey(nn)
+	case *ast.SequenceNode:
+		return f.formatSequence(nn)
+	case *ast.SequenceEntryNode:
+		return f.formatSequenceEntry(nn)
+	case *ast.AnchorNode:
+		return f.formatAnchor(nn)
+	case *ast.AliasNode:
+		return f.formatAlias(nn)
+	}
+	return ""
+}
+
+func (f *Formatter) formatCommentGroup(g *ast.CommentGroupNode) string {
+	if g == nil {
+		return ""
+	}
+	var ret string
+	for _, cm := range g.Comments {
+		ret += f.formatComment(cm)
+	}
+	return ret
+}
+
+func (f *Formatter) formatComment(n *ast.CommentNode) string {
+	if n == nil {
+		return ""
+	}
+	return n.Token.Origin
+}
+
+// nolint: unused
+func (f *Formatter) formatIndent(col int) string {
+	if col <= 1 {
+		return ""
+	}
+	return strings.Repeat(" ", col-1)
+}
+
+func (f *Formatter) trimNewLineCharPrefix(v string) string {
+	return strings.TrimLeftFunc(v, func(r rune) bool {
+		return r == '\n' || r == '\r'
+	})
+}
+
+func (f *Formatter) trimSpacePrefix(v string) string {
+	return strings.TrimLeftFunc(v, func(r rune) bool {
+		return r == ' '
+	})
+}
+
+func (f *Formatter) trimIndentSpace(trimIndentNum int, v string) string {
+	if trimIndentNum == 0 {
+		return v
+	}
+	lines := strings.Split(normalizeNewLineChars(v), "\n")
+	out := make([]string, 0, len(lines))
+	for _, line := range lines {
+		var cnt int
+		out = append(out, strings.TrimLeftFunc(line, func(r rune) bool {
+			cnt++
+			return r == ' ' && cnt <= trimIndentNum
+		}))
+	}
+	return strings.Join(out, "\n")
+}
+
+func (f *Formatter) addIndentSpace(indentNum int, v string, isIgnoredFirstLine bool) string {
+	if indentNum == 0 {
+		return v
+	}
+	indent := strings.Repeat(" ", indentNum)
+	lines := strings.Split(normalizeNewLineChars(v), "\n")
+	out := make([]string, 0, len(lines))
+	for idx, line := range lines {
+		if line == "" || (isIgnoredFirstLine && idx == 0) {
+			out = append(out, line)
+			continue
+		}
+		out = append(out, indent+line)
+	}
+	return strings.Join(out, "\n")
+}
+
+// normalizeNewLineChars normalize CRLF and CR to LF.
+func normalizeNewLineChars(v string) string {
+	return strings.ReplaceAll(strings.ReplaceAll(v, "\r\n", "\n"), "\r", "\n")
+}

sesh/vendor/github.com/goccy/go-yaml/lexer/lexer.go

@@ -0,0 +1,23 @@
+package lexer
+
+import (
+	"io"
+
+	"github.com/goccy/go-yaml/scanner"
+	"github.com/goccy/go-yaml/token"
+)
+
+// Tokenize split to token instances from string
+func Tokenize(src string) token.Tokens {
+	var s scanner.Scanner
+	s.Init(src)
+	var tokens token.Tokens
+	for {
+		subTokens, err := s.Scan()
+		if err == io.EOF {
+			break
+		}
+		tokens.Add(subTokens...)
+	}
+	return tokens
+}

sesh/vendor/github.com/goccy/go-yaml/option.go

@@ -0,0 +1,352 @@
+package yaml
+
+import (
+	"context"
+	"io"
+	"reflect"
+
+	"github.com/goccy/go-yaml/ast"
+)
+
+// DecodeOption functional option type for Decoder
+type DecodeOption func(d *Decoder) error
+
+// ReferenceReaders pass to Decoder that reference to anchor defined by passed readers
+func ReferenceReaders(readers ...io.Reader) DecodeOption {
+	return func(d *Decoder) error {
+		d.referenceReaders = append(d.referenceReaders, readers...)
+		return nil
+	}
+}
+
+// ReferenceFiles pass to Decoder that reference to anchor defined by passed files
+func ReferenceFiles(files ...string) DecodeOption {
+	return func(d *Decoder) error {
+		d.referenceFiles = files
+		return nil
+	}
+}
+
+// ReferenceDirs pass to Decoder that reference to anchor defined by files under the passed dirs
+func ReferenceDirs(dirs ...string) DecodeOption {
+	return func(d *Decoder) error {
+		d.referenceDirs = dirs
+		return nil
+	}
+}
+
+// RecursiveDir search yaml file recursively from passed dirs by ReferenceDirs option
+func RecursiveDir(isRecursive bool) DecodeOption {
+	return func(d *Decoder) error {
+		d.isRecursiveDir = isRecursive
+		return nil
+	}
+}
+
+// Validator set StructValidator instance to Decoder
+func Validator(v StructValidator) DecodeOption {
+	return func(d *Decoder) error {
+		d.validator = v
+		return nil
+	}
+}
+
+// Strict enable DisallowUnknownField
+func Strict() DecodeOption {
+	return func(d *Decoder) error {
+		d.disallowUnknownField = true
+		return nil
+	}
+}
+
+// DisallowUnknownField causes the Decoder to return an error when the destination
+// is a struct and the input contains object keys which do not match any
+// non-ignored, exported fields in the destination.
+func DisallowUnknownField() DecodeOption {
+	return func(d *Decoder) error {
+		d.disallowUnknownField = true
+		return nil
+	}
+}
+
+// AllowFieldPrefixes, when paired with [DisallowUnknownField], allows fields
+// with the specified prefixes to bypass the unknown field check.
+func AllowFieldPrefixes(prefixes ...string) DecodeOption {
+	return func(d *Decoder) error {
+		d.allowedFieldPrefixes = append(d.allowedFieldPrefixes, prefixes...)
+		return nil
+	}
+}
+
+// AllowDuplicateMapKey ignore syntax error when mapping keys that are duplicates.
+func AllowDuplicateMapKey() DecodeOption {
+	return func(d *Decoder) error {
+		d.allowDuplicateMapKey = true
+		return nil
+	}
+}
+
+// UseOrderedMap can be interpreted as a map,
+// and uses MapSlice ( ordered map ) aggressively if there is no type specification
+func UseOrderedMap() DecodeOption {
+	return func(d *Decoder) error {
+		d.useOrderedMap = true
+		return nil
+	}
+}
+
+// UseJSONUnmarshaler if neither `BytesUnmarshaler` nor `InterfaceUnmarshaler` is implemented
+// and `UnmashalJSON([]byte)error` is implemented, convert the argument from `YAML` to `JSON` and then call it.
+func UseJSONUnmarshaler() DecodeOption {
+	return func(d *Decoder) error {
+		d.useJSONUnmarshaler = true
+		return nil
+	}
+}
+
+// CustomUnmarshaler overrides any decoding process for the type specified in generics.
+//
+// NOTE: If RegisterCustomUnmarshaler and CustomUnmarshaler of DecodeOption are specified for the same type,
+// the CustomUnmarshaler specified in DecodeOption takes precedence.
+func CustomUnmarshaler[T any](unmarshaler func(*T, []byte) error) DecodeOption {
+	return func(d *Decoder) error {
+		var typ *T
+		d.customUnmarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}, b []byte) error {
+			return unmarshaler(v.(*T), b)
+		}
+		return nil
+	}
+}
+
+// CustomUnmarshalerContext overrides any decoding process for the type specified in generics.
+// Similar to CustomUnmarshaler, but allows passing a context to the unmarshaler function.
+func CustomUnmarshalerContext[T any](unmarshaler func(context.Context, *T, []byte) error) DecodeOption {
+	return func(d *Decoder) error {
+		var typ *T
+		d.customUnmarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}, b []byte) error {
+			return unmarshaler(ctx, v.(*T), b)
+		}
+		return nil
+	}
+}
+
+// EncodeOption functional option type for Encoder
+type EncodeOption func(e *Encoder) error
+
+// Indent change indent number
+func Indent(spaces int) EncodeOption {
+	return func(e *Encoder) error {
+		e.indentNum = spaces
+		return nil
+	}
+}
+
+// IndentSequence causes sequence values to be indented the same value as Indent
+func IndentSequence(indent bool) EncodeOption {
+	return func(e *Encoder) error {
+		e.indentSequence = indent
+		return nil
+	}
+}
+
+// UseSingleQuote determines if single or double quotes should be preferred for strings.
+func UseSingleQuote(sq bool) EncodeOption {
+	return func(e *Encoder) error {
+		e.singleQuote = sq
+		return nil
+	}
+}
+
+// Flow encoding by flow style
+func Flow(isFlowStyle bool) EncodeOption {
+	return func(e *Encoder) error {
+		e.isFlowStyle = isFlowStyle
+		return nil
+	}
+}
+
+// WithSmartAnchor when multiple map values share the same pointer,
+// an anchor is automatically assigned to the first occurrence, and aliases are used for subsequent elements.
+// The map key name is used as the anchor name by default.
+// If key names conflict, a suffix is automatically added to avoid collisions.
+// This is an experimental feature and cannot be used simultaneously with anchor tags.
+func WithSmartAnchor() EncodeOption {
+	return func(e *Encoder) error {
+		e.enableSmartAnchor = true
+		return nil
+	}
+}
+
+// UseLiteralStyleIfMultiline causes encoding multiline strings with a literal syntax,
+// no matter what characters they include
+func UseLiteralStyleIfMultiline(useLiteralStyleIfMultiline bool) EncodeOption {
+	return func(e *Encoder) error {
+		e.useLiteralStyleIfMultiline = useLiteralStyleIfMultiline
+		return nil
+	}
+}
+
+// JSON encode in JSON format
+func JSON() EncodeOption {
+	return func(e *Encoder) error {
+		e.isJSONStyle = true
+		e.isFlowStyle = true
+		return nil
+	}
+}
+
+// MarshalAnchor call back if encoder find an anchor during encoding
+func MarshalAnchor(callback func(*ast.AnchorNode, interface{}) error) EncodeOption {
+	return func(e *Encoder) error {
+		e.anchorCallback = callback
+		return nil
+	}
+}
+
+// UseJSONMarshaler if neither `BytesMarshaler` nor `InterfaceMarshaler`
+// nor `encoding.TextMarshaler` is implemented and `MarshalJSON()([]byte, error)` is implemented,
+// call `MarshalJSON` to convert the returned `JSON` to `YAML` for processing.
+func UseJSONMarshaler() EncodeOption {
+	return func(e *Encoder) error {
+		e.useJSONMarshaler = true
+		return nil
+	}
+}
+
+// CustomMarshaler overrides any encoding process for the type specified in generics.
+//
+// NOTE: If type T implements MarshalYAML for pointer receiver, the type specified in CustomMarshaler must be *T.
+// If RegisterCustomMarshaler and CustomMarshaler of EncodeOption are specified for the same type,
+// the CustomMarshaler specified in EncodeOption takes precedence.
+func CustomMarshaler[T any](marshaler func(T) ([]byte, error)) EncodeOption {
+	return func(e *Encoder) error {
+		var typ T
+		e.customMarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}) ([]byte, error) {
+			return marshaler(v.(T))
+		}
+		return nil
+	}
+}
+
+// CustomMarshalerContext overrides any encoding process for the type specified in generics.
+// Similar to CustomMarshaler, but allows passing a context to the marshaler function.
+func CustomMarshalerContext[T any](marshaler func(context.Context, T) ([]byte, error)) EncodeOption {
+	return func(e *Encoder) error {
+		var typ T
+		e.customMarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}) ([]byte, error) {
+			return marshaler(ctx, v.(T))
+		}
+		return nil
+	}
+}
+
+// AutoInt automatically converts floating-point numbers to integers when the fractional part is zero.
+// For example, a value of 1.0 will be encoded as 1.
+func AutoInt() EncodeOption {
+	return func(e *Encoder) error {
+		e.autoInt = true
+		return nil
+	}
+}
+
+// OmitEmpty behaves in the same way as the interpretation of the omitempty tag in the encoding/json library.
+// set on all the fields.
+// In the current implementation, the omitempty tag is not implemented in the same way as encoding/json,
+// so please specify this option if you expect the same behavior.
+func OmitEmpty() EncodeOption {
+	return func(e *Encoder) error {
+		e.omitEmpty = true
+		return nil
+	}
+}
+
+// OmitZero forces the encoder to assume an `omitzero` struct tag is
+// set on all the fields. See `Marshal` commentary for the `omitzero` tag logic.
+func OmitZero() EncodeOption {
+	return func(e *Encoder) error {
+		e.omitZero = true
+		return nil
+	}
+}
+
+// CommentPosition type of the position for comment.
+type CommentPosition int
+
+const (
+	CommentHeadPosition CommentPosition = CommentPosition(iota)
+	CommentLinePosition
+	CommentFootPosition
+)
+
+func (p CommentPosition) String() string {
+	switch p {
+	case CommentHeadPosition:
+		return "Head"
+	case CommentLinePosition:
+		return "Line"
+	case CommentFootPosition:
+		return "Foot"
+	default:
+		return ""
+	}
+}
+
+// LineComment create a one-line comment for CommentMap.
+func LineComment(text string) *Comment {
+	return &Comment{
+		Texts:    []string{text},
+		Position: CommentLinePosition,
+	}
+}
+
+// HeadComment create a multiline comment for CommentMap.
+func HeadComment(texts ...string) *Comment {
+	return &Comment{
+		Texts:    texts,
+		Position: CommentHeadPosition,
+	}
+}
+
+// FootComment create a multiline comment for CommentMap.
+func FootComment(texts ...string) *Comment {
+	return &Comment{
+		Texts:    texts,
+		Position: CommentFootPosition,
+	}
+}
+
+// Comment raw data for comment.
+type Comment struct {
+	Texts    []string
+	Position CommentPosition
+}
+
+// CommentMap map of the position of the comment and the comment information.
+type CommentMap map[string][]*Comment
+
+// WithComment add a comment using the location and text information given in the CommentMap.
+func WithComment(cm CommentMap) EncodeOption {
+	return func(e *Encoder) error {
+		commentMap := map[*Path][]*Comment{}
+		for k, v := range cm {
+			path, err := PathString(k)
+			if err != nil {
+				return err
+			}
+			commentMap[path] = v
+		}
+		e.commentMap = commentMap
+		return nil
+	}
+}
+
+// CommentToMap apply the position and content of comments in a YAML document to a CommentMap.
+func CommentToMap(cm CommentMap) DecodeOption {
+	return func(d *Decoder) error {
+		if cm == nil {
+			return ErrInvalidCommentMapValue
+		}
+		d.toCommentMap = cm
+		return nil
+	}
+}

sesh/vendor/github.com/goccy/go-yaml/parser/color.go

@@ -0,0 +1,28 @@
+package parser
+
+import "fmt"
+
+const (
+	colorFgHiBlack int = iota + 90
+	colorFgHiRed
+	colorFgHiGreen
+	colorFgHiYellow
+	colorFgHiBlue
+	colorFgHiMagenta
+	colorFgHiCyan
+)
+
+var colorTable = []int{
+	colorFgHiRed,
+	colorFgHiGreen,
+	colorFgHiYellow,
+	colorFgHiBlue,
+	colorFgHiMagenta,
+	colorFgHiCyan,
+}
+
+func colorize(idx int, content string) string {
+	colorIdx := idx % len(colorTable)
+	color := colorTable[colorIdx]
+	return fmt.Sprintf("\x1b[1;%dm", color) + content + "\x1b[22;0m"
+}

sesh/vendor/github.com/goccy/go-yaml/parser/context.go

@@ -0,0 +1,187 @@
+package parser
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/goccy/go-yaml/token"
+)
+
+// context context at parsing
+type context struct {
+	tokenRef *tokenRef
+	path     string
+	isFlow   bool
+}
+
+type tokenRef struct {
+	tokens []*Token
+	size   int
+	idx    int
+}
+
+var pathSpecialChars = []string{
+	"$", "*", ".", "[", "]",
+}
+
+func containsPathSpecialChar(path string) bool {
+	for _, char := range pathSpecialChars {
+		if strings.Contains(path, char) {
+			return true
+		}
+	}
+	return false
+}
+
+func normalizePath(path string) string {
+	if containsPathSpecialChar(path) {
+		return fmt.Sprintf("'%s'", path)
+	}
+	return path
+}
+
+func (c *context) currentToken() *Token {
+	if c.tokenRef.idx >= c.tokenRef.size {
+		return nil
+	}
+	return c.tokenRef.tokens[c.tokenRef.idx]
+}
+
+func (c *context) isComment() bool {
+	return c.currentToken().Type() == token.CommentType
+}
+
+func (c *context) nextToken() *Token {
+	if c.tokenRef.idx+1 >= c.tokenRef.size {
+		return nil
+	}
+	return c.tokenRef.tokens[c.tokenRef.idx+1]
+}
+
+func (c *context) nextNotCommentToken() *Token {
+	for i := c.tokenRef.idx + 1; i < c.tokenRef.size; i++ {
+		tk := c.tokenRef.tokens[i]
+		if tk.Type() == token.CommentType {
+			continue
+		}
+		return tk
+	}
+	return nil
+}
+
+func (c *context) isTokenNotFound() bool {
+	return c.currentToken() == nil
+}
+
+func (c *context) withGroup(g *TokenGroup) *context {
+	ctx := *c
+	ctx.tokenRef = &tokenRef{
+		tokens: g.Tokens,
+		size:   len(g.Tokens),
+	}
+	return &ctx
+}
+
+func (c *context) withChild(path string) *context {
+	ctx := *c
+	ctx.path = c.path + "." + normalizePath(path)
+	return &ctx
+}
+
+func (c *context) withIndex(idx uint) *context {
+	ctx := *c
+	ctx.path = c.path + "[" + fmt.Sprint(idx) + "]"
+	return &ctx
+}
+
+func (c *context) withFlow(isFlow bool) *context {
+	ctx := *c
+	ctx.isFlow = isFlow
+	return &ctx
+}
+
+func newContext() *context {
+	return &context{
+		path: "$",
+	}
+}
+
+func (c *context) goNext() {
+	ref := c.tokenRef
+	if ref.size <= ref.idx+1 {
+		ref.idx = ref.size
+	} else {
+		ref.idx++
+	}
+}
+
+func (c *context) next() bool {
+	return c.tokenRef.idx < c.tokenRef.size
+}
+
+func (c *context) insertNullToken(tk *Token) *Token {
+	nullToken := c.createImplicitNullToken(tk)
+	c.insertToken(nullToken)
+	c.goNext()
+
+	return nullToken
+}
+
+func (c *context) addNullValueToken(tk *Token) *Token {
+	nullToken := c.createImplicitNullToken(tk)
+	rawTk := nullToken.RawToken()
+
+	// add space for map or sequence value.
+	rawTk.Position.Column++
+
+	c.addToken(nullToken)
+	c.goNext()
+
+	return nullToken
+}
+
+func (c *context) createImplicitNullToken(base *Token) *Token {
+	pos := *(base.RawToken().Position)
+	pos.Column++
+	tk := token.New("null", " null", &pos)
+	tk.Type = token.ImplicitNullType
+	return &Token{Token: tk}
+}
+
+func (c *context) insertToken(tk *Token) {
+	ref := c.tokenRef
+	idx := ref.idx
+	if ref.size < idx {
+		return
+	}
+	if ref.size == idx {
+		curToken := ref.tokens[ref.size-1]
+		tk.RawToken().Next = curToken.RawToken()
+		curToken.RawToken().Prev = tk.RawToken()
+
+		ref.tokens = append(ref.tokens, tk)
+		ref.size = len(ref.tokens)
+		return
+	}
+
+	curToken := ref.tokens[idx]
+	tk.RawToken().Next = curToken.RawToken()
+	curToken.RawToken().Prev = tk.RawToken()
+
+	ref.tokens = append(ref.tokens[:idx+1], ref.tokens[idx:]...)
+	ref.tokens[idx] = tk
+	ref.size = len(ref.tokens)
+}
+
+func (c *context) addToken(tk *Token) {
+	ref := c.tokenRef
+	lastTk := ref.tokens[ref.size-1]
+	if lastTk.Group != nil {
+		lastTk = lastTk.Group.Last()
+	}
+	lastTk.RawToken().Next = tk.RawToken()
+	tk.RawToken().Prev = lastTk.RawToken()
+
+	ref.tokens = append(ref.tokens, tk)
+	ref.size = len(ref.tokens)
+}

sesh/vendor/github.com/goccy/go-yaml/parser/node.go

@@ -0,0 +1,257 @@
+package parser
+
+import (
+	"fmt"
+
+	"github.com/goccy/go-yaml/ast"
+	"github.com/goccy/go-yaml/internal/errors"
+	"github.com/goccy/go-yaml/token"
+)
+
+func newMappingNode(ctx *context, tk *Token, isFlow bool, values ...*ast.MappingValueNode) (*ast.MappingNode, error) {
+	node := ast.Mapping(tk.RawToken(), isFlow, values...)
+	node.SetPath(ctx.path)
+	return node, nil
+}
+
+func newMappingValueNode(ctx *context, colonTk, entryTk *Token, key ast.MapKeyNode, value ast.Node) (*ast.MappingValueNode, error) {
+	node := ast.MappingValue(colonTk.RawToken(), key, value)
+	node.SetPath(ctx.path)
+	node.CollectEntry = entryTk.RawToken()
+	if key.GetToken().Position.Line == value.GetToken().Position.Line {
+		// originally key was commented, but now that null value has been added, value must be commented.
+		if err := setLineComment(ctx, value, colonTk); err != nil {
+			return nil, err
+		}
+		// set line comment by colonTk or entryTk.
+		if err := setLineComment(ctx, value, entryTk); err != nil {
+			return nil, err
+		}
+	} else {
+		if err := setLineComment(ctx, key, colonTk); err != nil {
+			return nil, err
+		}
+		// set line comment by colonTk or entryTk.
+		if err := setLineComment(ctx, key, entryTk); err != nil {
+			return nil, err
+		}
+	}
+	return node, nil
+}
+
+func newMappingKeyNode(ctx *context, tk *Token) (*ast.MappingKeyNode, error) {
+	node := ast.MappingKey(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newAnchorNode(ctx *context, tk *Token) (*ast.AnchorNode, error) {
+	node := ast.Anchor(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newAliasNode(ctx *context, tk *Token) (*ast.AliasNode, error) {
+	node := ast.Alias(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newDirectiveNode(ctx *context, tk *Token) (*ast.DirectiveNode, error) {
+	node := ast.Directive(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newMergeKeyNode(ctx *context, tk *Token) (*ast.MergeKeyNode, error) {
+	node := ast.MergeKey(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newNullNode(ctx *context, tk *Token) (*ast.NullNode, error) {
+	node := ast.Null(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newBoolNode(ctx *context, tk *Token) (*ast.BoolNode, error) {
+	node := ast.Bool(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newIntegerNode(ctx *context, tk *Token) (*ast.IntegerNode, error) {
+	node := ast.Integer(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newFloatNode(ctx *context, tk *Token) (*ast.FloatNode, error) {
+	node := ast.Float(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newInfinityNode(ctx *context, tk *Token) (*ast.InfinityNode, error) {
+	node := ast.Infinity(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newNanNode(ctx *context, tk *Token) (*ast.NanNode, error) {
+	node := ast.Nan(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newStringNode(ctx *context, tk *Token) (*ast.StringNode, error) {
+	node := ast.String(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newLiteralNode(ctx *context, tk *Token) (*ast.LiteralNode, error) {
+	node := ast.Literal(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newTagNode(ctx *context, tk *Token) (*ast.TagNode, error) {
+	node := ast.Tag(tk.RawToken())
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newSequenceNode(ctx *context, tk *Token, isFlow bool) (*ast.SequenceNode, error) {
+	node := ast.Sequence(tk.RawToken(), isFlow)
+	node.SetPath(ctx.path)
+	if err := setLineComment(ctx, node, tk); err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+func newTagDefaultScalarValueNode(ctx *context, tag *token.Token) (ast.ScalarNode, error) {
+	pos := *(tag.Position)
+	pos.Column++
+
+	var (
+		tk   *Token
+		node ast.ScalarNode
+	)
+	switch token.ReservedTagKeyword(tag.Value) {
+	case token.IntegerTag:
+		tk = &Token{Token: token.New("0", "0", &pos)}
+		n, err := newIntegerNode(ctx, tk)
+		if err != nil {
+			return nil, err
+		}
+		node = n
+	case token.FloatTag:
+		tk = &Token{Token: token.New("0", "0", &pos)}
+		n, err := newFloatNode(ctx, tk)
+		if err != nil {
+			return nil, err
+		}
+		node = n
+	case token.StringTag, token.BinaryTag, token.TimestampTag:
+		tk = &Token{Token: token.New("", "", &pos)}
+		n, err := newStringNode(ctx, tk)
+		if err != nil {
+			return nil, err
+		}
+		node = n
+	case token.BooleanTag:
+		tk = &Token{Token: token.New("false", "false", &pos)}
+		n, err := newBoolNode(ctx, tk)
+		if err != nil {
+			return nil, err
+		}
+		node = n
+	case token.NullTag:
+		tk = &Token{Token: token.New("null", "null", &pos)}
+		n, err := newNullNode(ctx, tk)
+		if err != nil {
+			return nil, err
+		}
+		node = n
+	default:
+		return nil, errors.ErrSyntax(fmt.Sprintf("cannot assign default value for %q tag", tag.Value), tag)
+	}
+	ctx.insertToken(tk)
+	ctx.goNext()
+	return node, nil
+}
+
+func setLineComment(ctx *context, node ast.Node, tk *Token) error {
+	if tk == nil || tk.LineComment == nil {
+		return nil
+	}
+	comment := ast.CommentGroup([]*token.Token{tk.LineComment})
+	comment.SetPath(ctx.path)
+	if err := node.SetComment(comment); err != nil {
+		return err
+	}
+	return nil
+}
+
+func setHeadComment(cm *ast.CommentGroupNode, value ast.Node) error {
+	if cm == nil {
+		return nil
+	}
+	switch n := value.(type) {
+	case *ast.MappingNode:
+		if len(n.Values) != 0 && value.GetComment() == nil {
+			cm.SetPath(n.Values[0].GetPath())
+			return n.Values[0].SetComment(cm)
+		}
+	case *ast.MappingValueNode:
+		cm.SetPath(n.GetPath())
+		return n.SetComment(cm)
+	}
+	cm.SetPath(value.GetPath())
+	return value.SetComment(cm)
+}

sesh/vendor/github.com/goccy/go-yaml/parser/option.go

@@ -0,0 +1,12 @@
+package parser
+
+// Option represents parser's option.
+type Option func(p *parser)
+
+// AllowDuplicateMapKey allow the use of keys with the same name in the same map,
+// but by default, this is not permitted.
+func AllowDuplicateMapKey() Option {
+	return func(p *parser) {
+		p.allowDuplicateMapKey = true
+	}
+}

sesh/vendor/github.com/goccy/go-yaml/parser/token.go

@@ -0,0 +1,746 @@
+package parser
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/goccy/go-yaml/internal/errors"
+	"github.com/goccy/go-yaml/token"
+)
+
+type TokenGroupType int
+
+const (
+	TokenGroupNone TokenGroupType = iota
+	TokenGroupDirective
+	TokenGroupDirectiveName
+	TokenGroupDocument
+	TokenGroupDocumentBody
+	TokenGroupAnchor
+	TokenGroupAnchorName
+	TokenGroupAlias
+	TokenGroupLiteral
+	TokenGroupFolded
+	TokenGroupScalarTag
+	TokenGroupMapKey
+	TokenGroupMapKeyValue
+)
+
+func (t TokenGroupType) String() string {
+	switch t {
+	case TokenGroupNone:
+		return "none"
+	case TokenGroupDirective:
+		return "directive"
+	case TokenGroupDirectiveName:
+		return "directive_name"
+	case TokenGroupDocument:
+		return "document"
+	case TokenGroupDocumentBody:
+		return "document_body"
+	case TokenGroupAnchor:
+		return "anchor"
+	case TokenGroupAnchorName:
+		return "anchor_name"
+	case TokenGroupAlias:
+		return "alias"
+	case TokenGroupLiteral:
+		return "literal"
+	case TokenGroupFolded:
+		return "folded"
+	case TokenGroupScalarTag:
+		return "scalar_tag"
+	case TokenGroupMapKey:
+		return "map_key"
+	case TokenGroupMapKeyValue:
+		return "map_key_value"
+	}
+	return "none"
+}
+
+type Token struct {
+	Token       *token.Token
+	Group       *TokenGroup
+	LineComment *token.Token
+}
+
+func (t *Token) RawToken() *token.Token {
+	if t == nil {
+		return nil
+	}
+	if t.Token != nil {
+		return t.Token
+	}
+	return t.Group.RawToken()
+}
+
+func (t *Token) Type() token.Type {
+	if t == nil {
+		return 0
+	}
+	if t.Token != nil {
+		return t.Token.Type
+	}
+	return t.Group.TokenType()
+}
+
+func (t *Token) GroupType() TokenGroupType {
+	if t == nil {
+		return TokenGroupNone
+	}
+	if t.Token != nil {
+		return TokenGroupNone
+	}
+	return t.Group.Type
+}
+
+func (t *Token) Line() int {
+	if t == nil {
+		return 0
+	}
+	if t.Token != nil {
+		return t.Token.Position.Line
+	}
+	return t.Group.Line()
+}
+
+func (t *Token) Column() int {
+	if t == nil {
+		return 0
+	}
+	if t.Token != nil {
+		return t.Token.Position.Column
+	}
+	return t.Group.Column()
+}
+
+func (t *Token) SetGroupType(typ TokenGroupType) {
+	if t.Group == nil {
+		return
+	}
+	t.Group.Type = typ
+}
+
+func (t *Token) Dump() {
+	ctx := new(groupTokenRenderContext)
+	if t.Token != nil {
+		fmt.Fprint(os.Stdout, t.Token.Value)
+		return
+	}
+	t.Group.dump(ctx)
+	fmt.Fprintf(os.Stdout, "\n")
+}
+
+func (t *Token) dump(ctx *groupTokenRenderContext) {
+	if t.Token != nil {
+		fmt.Fprint(os.Stdout, t.Token.Value)
+		return
+	}
+	t.Group.dump(ctx)
+}
+
+type groupTokenRenderContext struct {
+	num int
+}
+
+type TokenGroup struct {
+	Type   TokenGroupType
+	Tokens []*Token
+}
+
+func (g *TokenGroup) First() *Token {
+	if len(g.Tokens) == 0 {
+		return nil
+	}
+	return g.Tokens[0]
+}
+
+func (g *TokenGroup) Last() *Token {
+	if len(g.Tokens) == 0 {
+		return nil
+	}
+	return g.Tokens[len(g.Tokens)-1]
+}
+
+func (g *TokenGroup) dump(ctx *groupTokenRenderContext) {
+	num := ctx.num
+	fmt.Fprint(os.Stdout, colorize(num, "("))
+	ctx.num++
+	for _, tk := range g.Tokens {
+		tk.dump(ctx)
+	}
+	fmt.Fprint(os.Stdout, colorize(num, ")"))
+}
+
+func (g *TokenGroup) RawToken() *token.Token {
+	if len(g.Tokens) == 0 {
+		return nil
+	}
+	return g.Tokens[0].RawToken()
+}
+
+func (g *TokenGroup) Line() int {
+	if len(g.Tokens) == 0 {
+		return 0
+	}
+	return g.Tokens[0].Line()
+}
+
+func (g *TokenGroup) Column() int {
+	if len(g.Tokens) == 0 {
+		return 0
+	}
+	return g.Tokens[0].Column()
+}
+
+func (g *TokenGroup) TokenType() token.Type {
+	if len(g.Tokens) == 0 {
+		return 0
+	}
+	return g.Tokens[0].Type()
+}
+
+func CreateGroupedTokens(tokens token.Tokens) ([]*Token, error) {
+	var err error
+	tks := newTokens(tokens)
+	tks = createLineCommentTokenGroups(tks)
+	tks, err = createLiteralAndFoldedTokenGroups(tks)
+	if err != nil {
+		return nil, err
+	}
+	tks, err = createAnchorAndAliasTokenGroups(tks)
+	if err != nil {
+		return nil, err
+	}
+	tks, err = createScalarTagTokenGroups(tks)
+	if err != nil {
+		return nil, err
+	}
+	tks, err = createAnchorWithScalarTagTokenGroups(tks)
+	if err != nil {
+		return nil, err
+	}
+	tks, err = createMapKeyTokenGroups(tks)
+	if err != nil {
+		return nil, err
+	}
+	tks = createMapKeyValueTokenGroups(tks)
+	tks, err = createDirectiveTokenGroups(tks)
+	if err != nil {
+		return nil, err
+	}
+	tks, err = createDocumentTokens(tks)
+	if err != nil {
+		return nil, err
+	}
+	return tks, nil
+}
+
+func newTokens(tks token.Tokens) []*Token {
+	ret := make([]*Token, 0, len(tks))
+	for _, tk := range tks {
+		ret = append(ret, &Token{Token: tk})
+	}
+	return ret
+}
+
+func createLineCommentTokenGroups(tokens []*Token) []*Token {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.Type() {
+		case token.CommentType:
+			if i > 0 && tokens[i-1].Line() == tk.Line() {
+				tokens[i-1].LineComment = tk.RawToken()
+			} else {
+				ret = append(ret, tk)
+			}
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret
+}
+
+func createLiteralAndFoldedTokenGroups(tokens []*Token) ([]*Token, error) {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.Type() {
+		case token.LiteralType:
+			tks := []*Token{tk}
+			if i+1 < len(tokens) {
+				tks = append(tks, tokens[i+1])
+			}
+			ret = append(ret, &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupLiteral,
+					Tokens: tks,
+				},
+			})
+			i++
+		case token.FoldedType:
+			tks := []*Token{tk}
+			if i+1 < len(tokens) {
+				tks = append(tks, tokens[i+1])
+			}
+			ret = append(ret, &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupFolded,
+					Tokens: tks,
+				},
+			})
+			i++
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret, nil
+}
+
+func createAnchorAndAliasTokenGroups(tokens []*Token) ([]*Token, error) {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.Type() {
+		case token.AnchorType:
+			if i+1 >= len(tokens) {
+				return nil, errors.ErrSyntax("undefined anchor name", tk.RawToken())
+			}
+			if i+2 >= len(tokens) {
+				return nil, errors.ErrSyntax("undefined anchor value", tk.RawToken())
+			}
+			anchorName := &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupAnchorName,
+					Tokens: []*Token{tk, tokens[i+1]},
+				},
+			}
+			valueTk := tokens[i+2]
+			if tk.Line() == valueTk.Line() && valueTk.Type() == token.SequenceEntryType {
+				return nil, errors.ErrSyntax("sequence entries are not allowed after anchor on the same line", valueTk.RawToken())
+			}
+			if tk.Line() == valueTk.Line() && isScalarType(valueTk) {
+				ret = append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupAnchor,
+						Tokens: []*Token{anchorName, valueTk},
+					},
+				})
+				i++
+			} else {
+				ret = append(ret, anchorName)
+			}
+			i++
+		case token.AliasType:
+			if i+1 == len(tokens) {
+				return nil, errors.ErrSyntax("undefined alias name", tk.RawToken())
+			}
+			ret = append(ret, &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupAlias,
+					Tokens: []*Token{tk, tokens[i+1]},
+				},
+			})
+			i++
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret, nil
+}
+
+func createScalarTagTokenGroups(tokens []*Token) ([]*Token, error) {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		if tk.Type() != token.TagType {
+			ret = append(ret, tk)
+			continue
+		}
+		tag := tk.RawToken()
+		if strings.HasPrefix(tag.Value, "!!") {
+			// secondary tag.
+			switch token.ReservedTagKeyword(tag.Value) {
+			case token.IntegerTag, token.FloatTag, token.StringTag, token.BinaryTag, token.TimestampTag, token.BooleanTag, token.NullTag:
+				if len(tokens) <= i+1 {
+					ret = append(ret, tk)
+					continue
+				}
+				if tk.Line() != tokens[i+1].Line() {
+					ret = append(ret, tk)
+					continue
+				}
+				if tokens[i+1].GroupType() == TokenGroupAnchorName {
+					ret = append(ret, tk)
+					continue
+				}
+				if isScalarType(tokens[i+1]) {
+					ret = append(ret, &Token{
+						Group: &TokenGroup{
+							Type:   TokenGroupScalarTag,
+							Tokens: []*Token{tk, tokens[i+1]},
+						},
+					})
+					i++
+				} else {
+					ret = append(ret, tk)
+				}
+			case token.MergeTag:
+				if len(tokens) <= i+1 {
+					ret = append(ret, tk)
+					continue
+				}
+				if tk.Line() != tokens[i+1].Line() {
+					ret = append(ret, tk)
+					continue
+				}
+				if tokens[i+1].GroupType() == TokenGroupAnchorName {
+					ret = append(ret, tk)
+					continue
+				}
+				if tokens[i+1].Type() != token.MergeKeyType {
+					return nil, errors.ErrSyntax("could not find merge key", tokens[i+1].RawToken())
+				}
+				ret = append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupScalarTag,
+						Tokens: []*Token{tk, tokens[i+1]},
+					},
+				})
+				i++
+			default:
+				ret = append(ret, tk)
+			}
+		} else {
+			if len(tokens) <= i+1 {
+				ret = append(ret, tk)
+				continue
+			}
+			if tk.Line() != tokens[i+1].Line() {
+				ret = append(ret, tk)
+				continue
+			}
+			if tokens[i+1].GroupType() == TokenGroupAnchorName {
+				ret = append(ret, tk)
+				continue
+			}
+			if isFlowType(tokens[i+1]) {
+				ret = append(ret, tk)
+				continue
+			}
+			ret = append(ret, &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupScalarTag,
+					Tokens: []*Token{tk, tokens[i+1]},
+				},
+			})
+			i++
+		}
+	}
+	return ret, nil
+}
+
+func createAnchorWithScalarTagTokenGroups(tokens []*Token) ([]*Token, error) {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.GroupType() {
+		case TokenGroupAnchorName:
+			if i+1 >= len(tokens) {
+				return nil, errors.ErrSyntax("undefined anchor value", tk.RawToken())
+			}
+			valueTk := tokens[i+1]
+			if tk.Line() == valueTk.Line() && valueTk.GroupType() == TokenGroupScalarTag {
+				ret = append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupAnchor,
+						Tokens: []*Token{tk, tokens[i+1]},
+					},
+				})
+				i++
+			} else {
+				ret = append(ret, tk)
+			}
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret, nil
+}
+
+func createMapKeyTokenGroups(tokens []*Token) ([]*Token, error) {
+	tks, err := createMapKeyByMappingKey(tokens)
+	if err != nil {
+		return nil, err
+	}
+	return createMapKeyByMappingValue(tks)
+}
+
+func createMapKeyByMappingKey(tokens []*Token) ([]*Token, error) {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.Type() {
+		case token.MappingKeyType:
+			if i+1 >= len(tokens) {
+				return nil, errors.ErrSyntax("undefined map key", tk.RawToken())
+			}
+			ret = append(ret, &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupMapKey,
+					Tokens: []*Token{tk, tokens[i+1]},
+				},
+			})
+			i++
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret, nil
+}
+
+func createMapKeyByMappingValue(tokens []*Token) ([]*Token, error) {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.Type() {
+		case token.MappingValueType:
+			if i == 0 {
+				return nil, errors.ErrSyntax("unexpected key name", tk.RawToken())
+			}
+			mapKeyTk := tokens[i-1]
+			if isNotMapKeyType(mapKeyTk) {
+				return nil, errors.ErrSyntax("found an invalid key for this map", tokens[i].RawToken())
+			}
+			newTk := &Token{Token: mapKeyTk.Token, Group: mapKeyTk.Group}
+			mapKeyTk.Token = nil
+			mapKeyTk.Group = &TokenGroup{
+				Type:   TokenGroupMapKey,
+				Tokens: []*Token{newTk, tk},
+			}
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret, nil
+}
+
+func createMapKeyValueTokenGroups(tokens []*Token) []*Token {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.GroupType() {
+		case TokenGroupMapKey:
+			if len(tokens) <= i+1 {
+				ret = append(ret, tk)
+				continue
+			}
+			valueTk := tokens[i+1]
+			if tk.Line() != valueTk.Line() {
+				ret = append(ret, tk)
+				continue
+			}
+			if valueTk.GroupType() == TokenGroupAnchorName {
+				ret = append(ret, tk)
+				continue
+			}
+			if valueTk.Type() == token.TagType && valueTk.GroupType() != TokenGroupScalarTag {
+				ret = append(ret, tk)
+				continue
+			}
+
+			if isScalarType(valueTk) || valueTk.Type() == token.TagType {
+				ret = append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupMapKeyValue,
+						Tokens: []*Token{tk, valueTk},
+					},
+				})
+				i++
+			} else {
+				ret = append(ret, tk)
+				continue
+			}
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret
+}
+
+func createDirectiveTokenGroups(tokens []*Token) ([]*Token, error) {
+	ret := make([]*Token, 0, len(tokens))
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.Type() {
+		case token.DirectiveType:
+			if i+1 >= len(tokens) {
+				return nil, errors.ErrSyntax("undefined directive value", tk.RawToken())
+			}
+			directiveName := &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupDirectiveName,
+					Tokens: []*Token{tk, tokens[i+1]},
+				},
+			}
+			i++
+			var valueTks []*Token
+			for j := i + 1; j < len(tokens); j++ {
+				if tokens[j].Line() != tk.Line() {
+					break
+				}
+				valueTks = append(valueTks, tokens[j])
+				i++
+			}
+			if i+1 >= len(tokens) || tokens[i+1].Type() != token.DocumentHeaderType {
+				return nil, errors.ErrSyntax("unexpected directive value. document not started", tk.RawToken())
+			}
+			if len(valueTks) != 0 {
+				ret = append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupDirective,
+						Tokens: append([]*Token{directiveName}, valueTks...),
+					},
+				})
+			} else {
+				ret = append(ret, directiveName)
+			}
+		default:
+			ret = append(ret, tk)
+		}
+	}
+	return ret, nil
+}
+
+func createDocumentTokens(tokens []*Token) ([]*Token, error) {
+	var ret []*Token
+	for i := 0; i < len(tokens); i++ {
+		tk := tokens[i]
+		switch tk.Type() {
+		case token.DocumentHeaderType:
+			if i != 0 {
+				ret = append(ret, &Token{
+					Group: &TokenGroup{Tokens: tokens[:i]},
+				})
+			}
+			if i+1 == len(tokens) {
+				// if current token is last token, add DocumentHeader only tokens to ret.
+				return append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupDocument,
+						Tokens: []*Token{tk},
+					},
+				}), nil
+			}
+			if tokens[i+1].Type() == token.DocumentHeaderType {
+				return append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupDocument,
+						Tokens: []*Token{tk},
+					},
+				}), nil
+			}
+			if tokens[i].Line() == tokens[i+1].Line() {
+				switch tokens[i+1].GroupType() {
+				case TokenGroupMapKey, TokenGroupMapKeyValue:
+					return nil, errors.ErrSyntax("value cannot be placed after document separator", tokens[i+1].RawToken())
+				}
+				switch tokens[i+1].Type() {
+				case token.SequenceEntryType:
+					return nil, errors.ErrSyntax("value cannot be placed after document separator", tokens[i+1].RawToken())
+				}
+			}
+			tks, err := createDocumentTokens(tokens[i+1:])
+			if err != nil {
+				return nil, err
+			}
+			if len(tks) != 0 {
+				tks[0].SetGroupType(TokenGroupDocument)
+				tks[0].Group.Tokens = append([]*Token{tk}, tks[0].Group.Tokens...)
+				return append(ret, tks...), nil
+			}
+			return append(ret, &Token{
+				Group: &TokenGroup{
+					Type:   TokenGroupDocument,
+					Tokens: []*Token{tk},
+				},
+			}), nil
+		case token.DocumentEndType:
+			if i != 0 {
+				ret = append(ret, &Token{
+					Group: &TokenGroup{
+						Type:   TokenGroupDocument,
+						Tokens: tokens[0 : i+1],
+					},
+				})
+			}
+			if i+1 == len(tokens) {
+				return ret, nil
+			}
+			if isScalarType(tokens[i+1]) {
+				return nil, errors.ErrSyntax("unexpected end content", tokens[i+1].RawToken())
+			}
+
+			tks, err := createDocumentTokens(tokens[i+1:])
+			if err != nil {
+				return nil, err
+			}
+			return append(ret, tks...), nil
+		}
+	}
+	return append(ret, &Token{
+		Group: &TokenGroup{
+			Type:   TokenGroupDocument,
+			Tokens: tokens,
+		},
+	}), nil
+}
+
+func isScalarType(tk *Token) bool {
+	switch tk.GroupType() {
+	case TokenGroupMapKey, TokenGroupMapKeyValue:
+		return false
+	}
+	typ := tk.Type()
+	return typ == token.AnchorType ||
+		typ == token.AliasType ||
+		typ == token.LiteralType ||
+		typ == token.FoldedType ||
+		typ == token.NullType ||
+		typ == token.ImplicitNullType ||
+		typ == token.BoolType ||
+		typ == token.IntegerType ||
+		typ == token.BinaryIntegerType ||
+		typ == token.OctetIntegerType ||
+		typ == token.HexIntegerType ||
+		typ == token.FloatType ||
+		typ == token.InfinityType ||
+		typ == token.NanType ||
+		typ == token.StringType ||
+		typ == token.SingleQuoteType ||
+		typ == token.DoubleQuoteType
+}
+
+func isNotMapKeyType(tk *Token) bool {
+	typ := tk.Type()
+	return typ == token.DirectiveType ||
+		typ == token.DocumentHeaderType ||
+		typ == token.DocumentEndType ||
+		typ == token.CollectEntryType ||
+		typ == token.MappingStartType ||
+		typ == token.MappingValueType ||
+		typ == token.MappingEndType ||
+		typ == token.SequenceStartType ||
+		typ == token.SequenceEntryType ||
+		typ == token.SequenceEndType
+}
+
+func isFlowType(tk *Token) bool {
+	typ := tk.Type()
+	return typ == token.MappingStartType ||
+		typ == token.MappingEndType ||
+		typ == token.SequenceStartType ||
+		typ == token.SequenceEntryType
+}

sesh/vendor/github.com/goccy/go-yaml/path.go

@@ -0,0 +1,835 @@
+package yaml
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"strconv"
+	"strings"
+
+	"github.com/goccy/go-yaml/ast"
+	"github.com/goccy/go-yaml/parser"
+	"github.com/goccy/go-yaml/printer"
+)
+
+// PathString create Path from string
+//
+// YAMLPath rule
+// $     : the root object/element
+// .     : child operator
+// ..    : recursive descent
+// [num] : object/element of array by number
+// [*]   : all objects/elements for array.
+//
+// If you want to use reserved characters such as `.` and `*` as a key name,
+// enclose them in single quotation as follows ( $.foo.'bar.baz-*'.hoge ).
+// If you want to use a single quote with reserved characters, escape it with `\` ( $.foo.'bar.baz\'s value'.hoge ).
+func PathString(s string) (*Path, error) {
+	buf := []rune(s)
+	length := len(buf)
+	cursor := 0
+	builder := &PathBuilder{}
+	for cursor < length {
+		c := buf[cursor]
+		switch c {
+		case '$':
+			builder = builder.Root()
+			cursor++
+		case '.':
+			b, buf, c, err := parsePathDot(builder, buf, cursor)
+			if err != nil {
+				return nil, err
+			}
+			length = len(buf)
+			builder = b
+			cursor = c
+		case '[':
+			b, buf, c, err := parsePathIndex(builder, buf, cursor)
+			if err != nil {
+				return nil, err
+			}
+			length = len(buf)
+			builder = b
+			cursor = c
+		default:
+			return nil, fmt.Errorf("invalid path at %d: %w", cursor, ErrInvalidPathString)
+		}
+	}
+	return builder.Build(), nil
+}
+
+func parsePathRecursive(b *PathBuilder, buf []rune, cursor int) (*PathBuilder, []rune, int, error) {
+	length := len(buf)
+	cursor += 2 // skip .. characters
+	start := cursor
+	for ; cursor < length; cursor++ {
+		c := buf[cursor]
+		switch c {
+		case '$':
+			return nil, nil, 0, fmt.Errorf("specified '$' after '..' character: %w", ErrInvalidPathString)
+		case '*':
+			return nil, nil, 0, fmt.Errorf("specified '*' after '..' character: %w", ErrInvalidPathString)
+		case '.', '[':
+			goto end
+		case ']':
+			return nil, nil, 0, fmt.Errorf("specified ']' after '..' character: %w", ErrInvalidPathString)
+		}
+	}
+end:
+	if start == cursor {
+		return nil, nil, 0, fmt.Errorf("not found recursive selector: %w", ErrInvalidPathString)
+	}
+	return b.Recursive(string(buf[start:cursor])), buf, cursor, nil
+}
+
+func parsePathDot(b *PathBuilder, buf []rune, cursor int) (*PathBuilder, []rune, int, error) {
+	if b.root == nil || b.node == nil {
+		return nil, nil, 0, fmt.Errorf("required '$' character at first: %w", ErrInvalidPathString)
+	}
+	length := len(buf)
+	if cursor+1 < length && buf[cursor+1] == '.' {
+		b, buf, c, err := parsePathRecursive(b, buf, cursor)
+		if err != nil {
+			return nil, nil, 0, err
+		}
+		return b, buf, c, nil
+	}
+	cursor++ // skip . character
+	start := cursor
+
+	// if started single quote, looking for end single quote char
+	if cursor < length && buf[cursor] == '\'' {
+		return parseQuotedKey(b, buf, cursor)
+	}
+	for ; cursor < length; cursor++ {
+		c := buf[cursor]
+		switch c {
+		case '$':
+			return nil, nil, 0, fmt.Errorf("specified '$' after '.' character: %w", ErrInvalidPathString)
+		case '*':
+			return nil, nil, 0, fmt.Errorf("specified '*' after '.' character: %w", ErrInvalidPathString)
+		case '.', '[':
+			goto end
+		case ']':
+			return nil, nil, 0, fmt.Errorf("specified ']' after '.' character: %w", ErrInvalidPathString)
+		}
+	}
+end:
+	if start == cursor {
+		return nil, nil, 0, fmt.Errorf("could not find by empty key: %w", ErrInvalidPathString)
+	}
+	return b.child(string(buf[start:cursor])), buf, cursor, nil
+}
+
+func parseQuotedKey(b *PathBuilder, buf []rune, cursor int) (*PathBuilder, []rune, int, error) {
+	if b.root == nil || b.node == nil {
+		return nil, nil, 0, fmt.Errorf("required '$' character at first: %w", ErrInvalidPathString)
+	}
+
+	cursor++ // skip single quote
+	start := cursor
+	length := len(buf)
+	var foundEndDelim bool
+	for ; cursor < length; cursor++ {
+		switch buf[cursor] {
+		case '\\':
+			buf = append(append([]rune{}, buf[:cursor]...), buf[cursor+1:]...)
+			length = len(buf)
+		case '\'':
+			foundEndDelim = true
+			goto end
+		}
+	}
+end:
+	if !foundEndDelim {
+		return nil, nil, 0, fmt.Errorf("could not find end delimiter for key: %w", ErrInvalidPathString)
+	}
+	if start == cursor {
+		return nil, nil, 0, fmt.Errorf("could not find by empty key: %w", ErrInvalidPathString)
+	}
+	selector := buf[start:cursor]
+	cursor++
+	if cursor < length {
+		switch buf[cursor] {
+		case '$':
+			return nil, nil, 0, fmt.Errorf("specified '$' after '.' character: %w", ErrInvalidPathString)
+		case '*':
+			return nil, nil, 0, fmt.Errorf("specified '*' after '.' character: %w", ErrInvalidPathString)
+		case ']':
+			return nil, nil, 0, fmt.Errorf("specified ']' after '.' character: %w", ErrInvalidPathString)
+		}
+	}
+	return b.child(string(selector)), buf, cursor, nil
+}
+
+func parsePathIndex(b *PathBuilder, buf []rune, cursor int) (*PathBuilder, []rune, int, error) {
+	if b.root == nil || b.node == nil {
+		return nil, nil, 0, fmt.Errorf("required '$' character at first: %w", ErrInvalidPathString)
+	}
+
+	length := len(buf)
+	cursor++ // skip '[' character
+	if length <= cursor {
+		return nil, nil, 0, fmt.Errorf("unexpected end of YAML Path: %w", ErrInvalidPathString)
+	}
+	c := buf[cursor]
+	switch c {
+	case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '*':
+		start := cursor
+		cursor++
+		for ; cursor < length; cursor++ {
+			c := buf[cursor]
+			switch c {
+			case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+				continue
+			}
+			break
+		}
+		if buf[cursor] != ']' {
+			return nil, nil, 0, fmt.Errorf("invalid character %s at %d: %w", string(buf[cursor]), cursor, ErrInvalidPathString)
+		}
+		numOrAll := string(buf[start:cursor])
+		if numOrAll == "*" {
+			return b.IndexAll(), buf, cursor + 1, nil
+		}
+		num, err := strconv.ParseInt(numOrAll, 10, 64)
+		if err != nil {
+			return nil, nil, 0, err
+		}
+		return b.Index(uint(num)), buf, cursor + 1, nil
+	}
+	return nil, nil, 0, fmt.Errorf("invalid character %q at %d: %w", c, cursor, ErrInvalidPathString)
+}
+
+// Path represent YAMLPath ( like a JSONPath ).
+type Path struct {
+	node pathNode
+}
+
+// String path to text.
+func (p *Path) String() string {
+	return p.node.String()
+}
+
+// Read decode from r and set extracted value by YAMLPath to v.
+func (p *Path) Read(r io.Reader, v interface{}) error {
+	node, err := p.ReadNode(r)
+	if err != nil {
+		return err
+	}
+	if err := Unmarshal([]byte(node.String()), v); err != nil {
+		return err
+	}
+	return nil
+}
+
+// ReadNode create AST from r and extract node by YAMLPath.
+func (p *Path) ReadNode(r io.Reader) (ast.Node, error) {
+	if p.node == nil {
+		return nil, ErrInvalidPath
+	}
+	var buf bytes.Buffer
+	if _, err := io.Copy(&buf, r); err != nil {
+		return nil, err
+	}
+	f, err := parser.ParseBytes(buf.Bytes(), 0)
+	if err != nil {
+		return nil, err
+	}
+	node, err := p.FilterFile(f)
+	if err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+// Filter filter from target by YAMLPath and set it to v.
+func (p *Path) Filter(target, v interface{}) error {
+	b, err := Marshal(target)
+	if err != nil {
+		return err
+	}
+	if err := p.Read(bytes.NewBuffer(b), v); err != nil {
+		return err
+	}
+	return nil
+}
+
+// FilterFile filter from ast.File by YAMLPath.
+func (p *Path) FilterFile(f *ast.File) (ast.Node, error) {
+	for _, doc := range f.Docs {
+		// For simplicity, directives cannot be the target of operations
+		if doc.Body != nil && doc.Body.Type() == ast.DirectiveType {
+			continue
+		}
+		node, err := p.FilterNode(doc.Body)
+		if err != nil {
+			return nil, err
+		}
+		if node != nil {
+			return node, nil
+		}
+	}
+	return nil, fmt.Errorf("failed to find path ( %s ): %w", p.node, ErrNotFoundNode)
+}
+
+// FilterNode filter from node by YAMLPath.
+func (p *Path) FilterNode(node ast.Node) (ast.Node, error) {
+	if node == nil {
+		return nil, nil
+	}
+	n, err := p.node.filter(node)
+	if err != nil {
+		return nil, err
+	}
+	return n, nil
+}
+
+// MergeFromReader merge YAML text into ast.File.
+func (p *Path) MergeFromReader(dst *ast.File, src io.Reader) error {
+	var buf bytes.Buffer
+	if _, err := io.Copy(&buf, src); err != nil {
+		return err
+	}
+	file, err := parser.ParseBytes(buf.Bytes(), 0)
+	if err != nil {
+		return err
+	}
+	if err := p.MergeFromFile(dst, file); err != nil {
+		return err
+	}
+	return nil
+}
+
+// MergeFromFile merge ast.File into ast.File.
+func (p *Path) MergeFromFile(dst *ast.File, src *ast.File) error {
+	base, err := p.FilterFile(dst)
+	if err != nil {
+		return err
+	}
+	for _, doc := range src.Docs {
+		if err := ast.Merge(base, doc); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// MergeFromNode merge ast.Node into ast.File.
+func (p *Path) MergeFromNode(dst *ast.File, src ast.Node) error {
+	base, err := p.FilterFile(dst)
+	if err != nil {
+		return err
+	}
+	if err := ast.Merge(base, src); err != nil {
+		return err
+	}
+	return nil
+}
+
+// ReplaceWithReader replace ast.File with io.Reader.
+func (p *Path) ReplaceWithReader(dst *ast.File, src io.Reader) error {
+	var buf bytes.Buffer
+	if _, err := io.Copy(&buf, src); err != nil {
+		return err
+	}
+	file, err := parser.ParseBytes(buf.Bytes(), 0)
+	if err != nil {
+		return err
+	}
+	if err := p.ReplaceWithFile(dst, file); err != nil {
+		return err
+	}
+	return nil
+}
+
+// ReplaceWithFile replace ast.File with ast.File.
+func (p *Path) ReplaceWithFile(dst *ast.File, src *ast.File) error {
+	for _, doc := range src.Docs {
+		if err := p.ReplaceWithNode(dst, doc); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// ReplaceNode replace ast.File with ast.Node.
+func (p *Path) ReplaceWithNode(dst *ast.File, node ast.Node) error {
+	for _, doc := range dst.Docs {
+		// For simplicity, directives cannot be the target of operations
+		if doc.Body != nil && doc.Body.Type() == ast.DirectiveType {
+			continue
+		}
+		if node.Type() == ast.DocumentType {
+			node = node.(*ast.DocumentNode).Body
+		}
+		if err := p.node.replace(doc.Body, node); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// AnnotateSource add annotation to passed source ( see section 5.1 in README.md ).
+func (p *Path) AnnotateSource(source []byte, colored bool) ([]byte, error) {
+	file, err := parser.ParseBytes(source, 0)
+	if err != nil {
+		return nil, err
+	}
+	node, err := p.FilterFile(file)
+	if err != nil {
+		return nil, err
+	}
+	var pp printer.Printer
+	return []byte(pp.PrintErrorToken(node.GetToken(), colored)), nil
+}
+
+// PathBuilder represent builder for YAMLPath.
+type PathBuilder struct {
+	root *rootNode
+	node pathNode
+}
+
+// Root add '$' to current path.
+func (b *PathBuilder) Root() *PathBuilder {
+	root := newRootNode()
+	return &PathBuilder{root: root, node: root}
+}
+
+// IndexAll add '[*]' to current path.
+func (b *PathBuilder) IndexAll() *PathBuilder {
+	b.node = b.node.chain(newIndexAllNode())
+	return b
+}
+
+// Recursive add '..selector' to current path.
+func (b *PathBuilder) Recursive(selector string) *PathBuilder {
+	b.node = b.node.chain(newRecursiveNode(selector))
+	return b
+}
+
+func (b *PathBuilder) containsReservedPathCharacters(path string) bool {
+	if strings.Contains(path, ".") {
+		return true
+	}
+	if strings.Contains(path, "*") {
+		return true
+	}
+	return false
+}
+
+func (b *PathBuilder) enclosedSingleQuote(name string) bool {
+	return strings.HasPrefix(name, "'") && strings.HasSuffix(name, "'")
+}
+
+func (b *PathBuilder) normalizeSelectorName(name string) string {
+	if b.enclosedSingleQuote(name) {
+		// already escaped name
+		return name
+	}
+	if b.containsReservedPathCharacters(name) {
+		escapedName := strings.ReplaceAll(name, `'`, `\'`)
+		return "'" + escapedName + "'"
+	}
+	return name
+}
+
+func (b *PathBuilder) child(name string) *PathBuilder {
+	b.node = b.node.chain(newSelectorNode(name))
+	return b
+}
+
+// Child add '.name' to current path.
+func (b *PathBuilder) Child(name string) *PathBuilder {
+	return b.child(b.normalizeSelectorName(name))
+}
+
+// Index add '[idx]' to current path.
+func (b *PathBuilder) Index(idx uint) *PathBuilder {
+	b.node = b.node.chain(newIndexNode(idx))
+	return b
+}
+
+// Build build YAMLPath.
+func (b *PathBuilder) Build() *Path {
+	return &Path{node: b.root}
+}
+
+type pathNode interface {
+	fmt.Stringer
+	chain(pathNode) pathNode
+	filter(ast.Node) (ast.Node, error)
+	replace(ast.Node, ast.Node) error
+}
+
+type basePathNode struct {
+	child pathNode
+}
+
+func (n *basePathNode) chain(node pathNode) pathNode {
+	n.child = node
+	return node
+}
+
+type rootNode struct {
+	*basePathNode
+}
+
+func newRootNode() *rootNode {
+	return &rootNode{basePathNode: &basePathNode{}}
+}
+
+func (n *rootNode) String() string {
+	s := "$"
+	if n.child != nil {
+		s += n.child.String()
+	}
+	return s
+}
+
+func (n *rootNode) filter(node ast.Node) (ast.Node, error) {
+	if n.child == nil {
+		return node, nil
+	}
+	filtered, err := n.child.filter(node)
+	if err != nil {
+		return nil, err
+	}
+	return filtered, nil
+}
+
+func (n *rootNode) replace(node ast.Node, target ast.Node) error {
+	if n.child == nil {
+		return nil
+	}
+	if err := n.child.replace(node, target); err != nil {
+		return err
+	}
+	return nil
+}
+
+type selectorNode struct {
+	*basePathNode
+	selector string
+}
+
+func newSelectorNode(selector string) *selectorNode {
+	return &selectorNode{
+		basePathNode: &basePathNode{},
+		selector:     selector,
+	}
+}
+
+func (n *selectorNode) filter(node ast.Node) (ast.Node, error) {
+	selector := n.selector
+	if len(selector) > 1 && selector[0] == '\'' && selector[len(selector)-1] == '\'' {
+		selector = selector[1 : len(selector)-1]
+	}
+	switch node.Type() {
+	case ast.MappingType:
+		for _, value := range node.(*ast.MappingNode).Values {
+			key := value.Key.GetToken().Value
+			if len(key) > 0 {
+				switch key[0] {
+				case '"':
+					var err error
+					key, err = strconv.Unquote(key)
+					if err != nil {
+						return nil, err
+					}
+				case '\'':
+					if len(key) > 1 && key[len(key)-1] == '\'' {
+						key = key[1 : len(key)-1]
+					}
+				}
+			}
+			if key == selector {
+				if n.child == nil {
+					return value.Value, nil
+				}
+				filtered, err := n.child.filter(value.Value)
+				if err != nil {
+					return nil, err
+				}
+				return filtered, nil
+			}
+		}
+	case ast.MappingValueType:
+		value, _ := node.(*ast.MappingValueNode)
+		key := value.Key.GetToken().Value
+		if key == selector {
+			if n.child == nil {
+				return value.Value, nil
+			}
+			filtered, err := n.child.filter(value.Value)
+			if err != nil {
+				return nil, err
+			}
+			return filtered, nil
+		}
+	default:
+		return nil, fmt.Errorf("expected node type is map or map value. but got %s: %w", node.Type(), ErrInvalidQuery)
+	}
+	return nil, nil
+}
+
+func (n *selectorNode) replaceMapValue(value *ast.MappingValueNode, target ast.Node) error {
+	key := value.Key.GetToken().Value
+	if key != n.selector {
+		return nil
+	}
+	if n.child == nil {
+		if err := value.Replace(target); err != nil {
+			return err
+		}
+	} else {
+		if err := n.child.replace(value.Value, target); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (n *selectorNode) replace(node ast.Node, target ast.Node) error {
+	switch node.Type() {
+	case ast.MappingType:
+		for _, value := range node.(*ast.MappingNode).Values {
+			if err := n.replaceMapValue(value, target); err != nil {
+				return err
+			}
+		}
+	case ast.MappingValueType:
+		value, _ := node.(*ast.MappingValueNode)
+		if err := n.replaceMapValue(value, target); err != nil {
+			return err
+		}
+	default:
+		return fmt.Errorf("expected node type is map or map value. but got %s: %w", node.Type(), ErrInvalidQuery)
+	}
+	return nil
+}
+
+func (n *selectorNode) String() string {
+	var builder PathBuilder
+	selector := builder.normalizeSelectorName(n.selector)
+	s := fmt.Sprintf(".%s", selector)
+	if n.child != nil {
+		s += n.child.String()
+	}
+	return s
+}
+
+type indexNode struct {
+	*basePathNode
+	selector uint
+}
+
+func newIndexNode(selector uint) *indexNode {
+	return &indexNode{
+		basePathNode: &basePathNode{},
+		selector:     selector,
+	}
+}
+
+func (n *indexNode) filter(node ast.Node) (ast.Node, error) {
+	if node.Type() != ast.SequenceType {
+		return nil, fmt.Errorf("expected sequence type node. but got %s: %w", node.Type(), ErrInvalidQuery)
+	}
+	sequence, _ := node.(*ast.SequenceNode)
+	if n.selector >= uint(len(sequence.Values)) {
+		return nil, fmt.Errorf("expected index is %d. but got sequences has %d items: %w", n.selector, len(sequence.Values), ErrInvalidQuery)
+	}
+	value := sequence.Values[n.selector]
+	if n.child == nil {
+		return value, nil
+	}
+	filtered, err := n.child.filter(value)
+	if err != nil {
+		return nil, err
+	}
+	return filtered, nil
+}
+
+func (n *indexNode) replace(node ast.Node, target ast.Node) error {
+	if node.Type() != ast.SequenceType {
+		return fmt.Errorf("expected sequence type node. but got %s: %w", node.Type(), ErrInvalidQuery)
+	}
+	sequence, _ := node.(*ast.SequenceNode)
+	if n.selector >= uint(len(sequence.Values)) {
+		return fmt.Errorf("expected index is %d. but got sequences has %d items: %w", n.selector, len(sequence.Values), ErrInvalidQuery)
+	}
+	if n.child == nil {
+		if err := sequence.Replace(int(n.selector), target); err != nil {
+			return err
+		}
+		return nil
+	}
+	if err := n.child.replace(sequence.Values[n.selector], target); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (n *indexNode) String() string {
+	s := fmt.Sprintf("[%d]", n.selector)
+	if n.child != nil {
+		s += n.child.String()
+	}
+	return s
+}
+
+type indexAllNode struct {
+	*basePathNode
+}
+
+func newIndexAllNode() *indexAllNode {
+	return &indexAllNode{
+		basePathNode: &basePathNode{},
+	}
+}
+
+func (n *indexAllNode) String() string {
+	s := "[*]"
+	if n.child != nil {
+		s += n.child.String()
+	}
+	return s
+}
+
+func (n *indexAllNode) filter(node ast.Node) (ast.Node, error) {
+	if node.Type() != ast.SequenceType {
+		return nil, fmt.Errorf("expected sequence type node. but got %s: %w", node.Type(), ErrInvalidQuery)
+	}
+	sequence, _ := node.(*ast.SequenceNode)
+	if n.child == nil {
+		return sequence, nil
+	}
+	out := *sequence
+	out.Values = []ast.Node{}
+	for _, value := range sequence.Values {
+		filtered, err := n.child.filter(value)
+		if err != nil {
+			return nil, err
+		}
+		out.Values = append(out.Values, filtered)
+	}
+	return &out, nil
+}
+
+func (n *indexAllNode) replace(node ast.Node, target ast.Node) error {
+	if node.Type() != ast.SequenceType {
+		return fmt.Errorf("expected sequence type node. but got %s: %w", node.Type(), ErrInvalidQuery)
+	}
+	sequence, _ := node.(*ast.SequenceNode)
+	if n.child == nil {
+		for idx := range sequence.Values {
+			if err := sequence.Replace(idx, target); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+	for _, value := range sequence.Values {
+		if err := n.child.replace(value, target); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+type recursiveNode struct {
+	*basePathNode
+	selector string
+}
+
+func newRecursiveNode(selector string) *recursiveNode {
+	return &recursiveNode{
+		basePathNode: &basePathNode{},
+		selector:     selector,
+	}
+}
+
+func (n *recursiveNode) String() string {
+	s := fmt.Sprintf("..%s", n.selector)
+	if n.child != nil {
+		s += n.child.String()
+	}
+	return s
+}
+
+func (n *recursiveNode) filterNode(node ast.Node) (*ast.SequenceNode, error) {
+	sequence := &ast.SequenceNode{BaseNode: &ast.BaseNode{}}
+	switch typedNode := node.(type) {
+	case *ast.MappingNode:
+		for _, value := range typedNode.Values {
+			seq, err := n.filterNode(value)
+			if err != nil {
+				return nil, err
+			}
+			sequence.Values = append(sequence.Values, seq.Values...)
+		}
+	case *ast.MappingValueNode:
+		key := typedNode.Key.GetToken().Value
+		if n.selector == key {
+			sequence.Values = append(sequence.Values, typedNode.Value)
+		}
+		seq, err := n.filterNode(typedNode.Value)
+		if err != nil {
+			return nil, err
+		}
+		sequence.Values = append(sequence.Values, seq.Values...)
+	case *ast.SequenceNode:
+		for _, value := range typedNode.Values {
+			seq, err := n.filterNode(value)
+			if err != nil {
+				return nil, err
+			}
+			sequence.Values = append(sequence.Values, seq.Values...)
+		}
+	}
+	return sequence, nil
+}
+
+func (n *recursiveNode) filter(node ast.Node) (ast.Node, error) {
+	sequence, err := n.filterNode(node)
+	if err != nil {
+		return nil, err
+	}
+	sequence.Start = node.GetToken()
+	return sequence, nil
+}
+
+func (n *recursiveNode) replaceNode(node ast.Node, target ast.Node) error {
+	switch typedNode := node.(type) {
+	case *ast.MappingNode:
+		for _, value := range typedNode.Values {
+			if err := n.replaceNode(value, target); err != nil {
+				return err
+			}
+		}
+	case *ast.MappingValueNode:
+		key := typedNode.Key.GetToken().Value
+		if n.selector == key {
+			if err := typedNode.Replace(target); err != nil {
+				return err
+			}
+		}
+		if err := n.replaceNode(typedNode.Value, target); err != nil {
+			return err
+		}
+	case *ast.SequenceNode:
+		for _, value := range typedNode.Values {
+			if err := n.replaceNode(value, target); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func (n *recursiveNode) replace(node ast.Node, target ast.Node) error {
+	if err := n.replaceNode(node, target); err != nil {
+		return err
+	}
+	return nil
+}

sesh/vendor/github.com/goccy/go-yaml/printer/color.go

@@ -0,0 +1,83 @@
+// This source inspired by https://github.com/fatih/color.
+package printer
+
+import (
+	"fmt"
+	"strings"
+)
+
+type ColorAttribute int
+
+const (
+	ColorReset ColorAttribute = iota
+	ColorBold
+	ColorFaint
+	ColorItalic
+	ColorUnderline
+	ColorBlinkSlow
+	ColorBlinkRapid
+	ColorReverseVideo
+	ColorConcealed
+	ColorCrossedOut
+)
+
+const (
+	ColorFgHiBlack ColorAttribute = iota + 90
+	ColorFgHiRed
+	ColorFgHiGreen
+	ColorFgHiYellow
+	ColorFgHiBlue
+	ColorFgHiMagenta
+	ColorFgHiCyan
+	ColorFgHiWhite
+)
+
+const (
+	ColorResetBold ColorAttribute = iota + 22
+	ColorResetItalic
+	ColorResetUnderline
+	ColorResetBlinking
+
+	ColorResetReversed
+	ColorResetConcealed
+	ColorResetCrossedOut
+)
+
+const escape = "\x1b"
+
+var colorResetMap = map[ColorAttribute]ColorAttribute{
+	ColorBold:         ColorResetBold,
+	ColorFaint:        ColorResetBold,
+	ColorItalic:       ColorResetItalic,
+	ColorUnderline:    ColorResetUnderline,
+	ColorBlinkSlow:    ColorResetBlinking,
+	ColorBlinkRapid:   ColorResetBlinking,
+	ColorReverseVideo: ColorResetReversed,
+	ColorConcealed:    ColorResetConcealed,
+	ColorCrossedOut:   ColorResetCrossedOut,
+}
+
+func format(attrs ...ColorAttribute) string {
+	format := make([]string, 0, len(attrs))
+	for _, attr := range attrs {
+		format = append(format, fmt.Sprint(attr))
+	}
+	return fmt.Sprintf("%s[%sm", escape, strings.Join(format, ";"))
+}
+
+func unformat(attrs ...ColorAttribute) string {
+	format := make([]string, len(attrs))
+	for _, attr := range attrs {
+		v := fmt.Sprint(ColorReset)
+		reset, exists := colorResetMap[attr]
+		if exists {
+			v = fmt.Sprint(reset)
+		}
+		format = append(format, v)
+	}
+	return fmt.Sprintf("%s[%sm", escape, strings.Join(format, ";"))
+}
+
+func colorize(msg string, attrs ...ColorAttribute) string {
+	return format(attrs...) + msg + unformat(attrs...)
+}

sesh/vendor/github.com/goccy/go-yaml/printer/printer.go

@@ -0,0 +1,353 @@
+package printer
+
+import (
+	"fmt"
+	"math"
+	"strings"
+
+	"github.com/goccy/go-yaml/ast"
+	"github.com/goccy/go-yaml/token"
+)
+
+// Property additional property set for each the token
+type Property struct {
+	Prefix string
+	Suffix string
+}
+
+// PrintFunc returns property instance
+type PrintFunc func() *Property
+
+// Printer create text from token collection or ast
+type Printer struct {
+	LineNumber       bool
+	LineNumberFormat func(num int) string
+	MapKey           PrintFunc
+	Anchor           PrintFunc
+	Alias            PrintFunc
+	Bool             PrintFunc
+	String           PrintFunc
+	Number           PrintFunc
+	Comment          PrintFunc
+}
+
+func defaultLineNumberFormat(num int) string {
+	return fmt.Sprintf("%2d | ", num)
+}
+
+func (p *Printer) property(tk *token.Token) *Property {
+	prop := &Property{}
+	switch tk.PreviousType() {
+	case token.AnchorType:
+		if p.Anchor != nil {
+			return p.Anchor()
+		}
+		return prop
+	case token.AliasType:
+		if p.Alias != nil {
+			return p.Alias()
+		}
+		return prop
+	}
+	switch tk.NextType() {
+	case token.MappingValueType:
+		if p.MapKey != nil {
+			return p.MapKey()
+		}
+		return prop
+	}
+	switch tk.Type {
+	case token.BoolType:
+		if p.Bool != nil {
+			return p.Bool()
+		}
+		return prop
+	case token.AnchorType:
+		if p.Anchor != nil {
+			return p.Anchor()
+		}
+		return prop
+	case token.AliasType:
+		if p.Anchor != nil {
+			return p.Alias()
+		}
+		return prop
+	case token.StringType, token.SingleQuoteType, token.DoubleQuoteType:
+		if p.String != nil {
+			return p.String()
+		}
+		return prop
+	case token.IntegerType, token.FloatType:
+		if p.Number != nil {
+			return p.Number()
+		}
+		return prop
+	case token.CommentType:
+		if p.Comment != nil {
+			return p.Comment()
+		}
+		return prop
+	default:
+	}
+	return prop
+}
+
+// PrintTokens create text from token collection
+func (p *Printer) PrintTokens(tokens token.Tokens) string {
+	if len(tokens) == 0 {
+		return ""
+	}
+	if p.LineNumber {
+		if p.LineNumberFormat == nil {
+			p.LineNumberFormat = defaultLineNumberFormat
+		}
+	}
+	texts := []string{}
+	lineNumber := tokens[0].Position.Line
+	for _, tk := range tokens {
+		lines := strings.Split(tk.Origin, "\n")
+		prop := p.property(tk)
+		header := ""
+		if p.LineNumber {
+			header = p.LineNumberFormat(lineNumber)
+		}
+		if len(lines) == 1 {
+			line := prop.Prefix + lines[0] + prop.Suffix
+			if len(texts) == 0 {
+				texts = append(texts, header+line)
+				lineNumber++
+			} else {
+				text := texts[len(texts)-1]
+				texts[len(texts)-1] = text + line
+			}
+		} else {
+			for idx, src := range lines {
+				if p.LineNumber {
+					header = p.LineNumberFormat(lineNumber)
+				}
+				line := prop.Prefix + src + prop.Suffix
+				if idx == 0 {
+					if len(texts) == 0 {
+						texts = append(texts, header+line)
+						lineNumber++
+					} else {
+						text := texts[len(texts)-1]
+						texts[len(texts)-1] = text + line
+					}
+				} else {
+					texts = append(texts, fmt.Sprintf("%s%s", header, line))
+					lineNumber++
+				}
+			}
+		}
+	}
+	return strings.Join(texts, "\n")
+}
+
+// PrintNode create text from ast.Node
+func (p *Printer) PrintNode(node ast.Node) []byte {
+	return []byte(fmt.Sprintf("%+v\n", node))
+}
+
+func (p *Printer) setDefaultColorSet() {
+	p.Bool = func() *Property {
+		return &Property{
+			Prefix: format(ColorFgHiMagenta),
+			Suffix: format(ColorReset),
+		}
+	}
+	p.Number = func() *Property {
+		return &Property{
+			Prefix: format(ColorFgHiMagenta),
+			Suffix: format(ColorReset),
+		}
+	}
+	p.MapKey = func() *Property {
+		return &Property{
+			Prefix: format(ColorFgHiCyan),
+			Suffix: format(ColorReset),
+		}
+	}
+	p.Anchor = func() *Property {
+		return &Property{
+			Prefix: format(ColorFgHiYellow),
+			Suffix: format(ColorReset),
+		}
+	}
+	p.Alias = func() *Property {
+		return &Property{
+			Prefix: format(ColorFgHiYellow),
+			Suffix: format(ColorReset),
+		}
+	}
+	p.String = func() *Property {
+		return &Property{
+			Prefix: format(ColorFgHiGreen),
+			Suffix: format(ColorReset),
+		}
+	}
+	p.Comment = func() *Property {
+		return &Property{
+			Prefix: format(ColorFgHiBlack),
+			Suffix: format(ColorReset),
+		}
+	}
+}
+
+func (p *Printer) PrintErrorMessage(msg string, isColored bool) string {
+	if isColored {
+		return fmt.Sprintf("%s%s%s",
+			format(ColorFgHiRed),
+			msg,
+			format(ColorReset),
+		)
+	}
+	return msg
+}
+
+func (p *Printer) removeLeftSideNewLineChar(src string) string {
+	return strings.TrimLeft(strings.TrimLeft(strings.TrimLeft(src, "\r"), "\n"), "\r\n")
+}
+
+func (p *Printer) removeRightSideNewLineChar(src string) string {
+	return strings.TrimRight(strings.TrimRight(strings.TrimRight(src, "\r"), "\n"), "\r\n")
+}
+
+func (p *Printer) removeRightSideWhiteSpaceChar(src string) string {
+	return p.removeRightSideNewLineChar(strings.TrimRight(src, " "))
+}
+
+func (p *Printer) newLineCount(s string) int {
+	src := []rune(s)
+	size := len(src)
+	cnt := 0
+	for i := 0; i < size; i++ {
+		c := src[i]
+		switch c {
+		case '\r':
+			if i+1 < size && src[i+1] == '\n' {
+				i++
+			}
+			cnt++
+		case '\n':
+			cnt++
+		}
+	}
+	return cnt
+}
+
+func (p *Printer) isNewLineLastChar(s string) bool {
+	for i := len(s) - 1; i > 0; i-- {
+		c := s[i]
+		switch c {
+		case ' ':
+			continue
+		case '\n', '\r':
+			return true
+		}
+		break
+	}
+	return false
+}
+
+func (p *Printer) printBeforeTokens(tk *token.Token, minLine, extLine int) token.Tokens {
+	for tk.Prev != nil {
+		if tk.Prev.Position.Line < minLine {
+			break
+		}
+		tk = tk.Prev
+	}
+	minTk := tk.Clone()
+	if minTk.Prev != nil {
+		// add white spaces to minTk by prev token
+		prev := minTk.Prev
+		whiteSpaceLen := len(prev.Origin) - len(strings.TrimRight(prev.Origin, " "))
+		minTk.Origin = strings.Repeat(" ", whiteSpaceLen) + minTk.Origin
+	}
+	minTk.Origin = p.removeLeftSideNewLineChar(minTk.Origin)
+	tokens := token.Tokens{minTk}
+	tk = minTk.Next
+	for tk != nil && tk.Position.Line <= extLine {
+		clonedTk := tk.Clone()
+		tokens.Add(clonedTk)
+		tk = clonedTk.Next
+	}
+	lastTk := tokens[len(tokens)-1]
+	trimmedOrigin := p.removeRightSideWhiteSpaceChar(lastTk.Origin)
+	suffix := lastTk.Origin[len(trimmedOrigin):]
+	lastTk.Origin = trimmedOrigin
+
+	if lastTk.Next != nil && len(suffix) > 1 {
+		next := lastTk.Next.Clone()
+		// add suffix to header of next token
+		if suffix[0] == '\n' || suffix[0] == '\r' {
+			suffix = suffix[1:]
+		}
+		next.Origin = suffix + next.Origin
+		lastTk.Next = next
+	}
+	return tokens
+}
+
+func (p *Printer) printAfterTokens(tk *token.Token, maxLine int) token.Tokens {
+	tokens := token.Tokens{}
+	if tk == nil {
+		return tokens
+	}
+	if tk.Position.Line > maxLine {
+		return tokens
+	}
+	minTk := tk.Clone()
+	minTk.Origin = p.removeLeftSideNewLineChar(minTk.Origin)
+	tokens.Add(minTk)
+	tk = minTk.Next
+	for tk != nil && tk.Position.Line <= maxLine {
+		clonedTk := tk.Clone()
+		tokens.Add(clonedTk)
+		tk = clonedTk.Next
+	}
+	return tokens
+}
+
+func (p *Printer) setupErrorTokenFormat(annotateLine int, isColored bool) {
+	prefix := func(annotateLine, num int) string {
+		if annotateLine == num {
+			return fmt.Sprintf("> %2d | ", num)
+		}
+		return fmt.Sprintf("  %2d | ", num)
+	}
+	p.LineNumber = true
+	p.LineNumberFormat = func(num int) string {
+		if isColored {
+			return colorize(prefix(annotateLine, num), ColorBold, ColorFgHiWhite)
+		}
+		return prefix(annotateLine, num)
+	}
+	if isColored {
+		p.setDefaultColorSet()
+	}
+}
+
+func (p *Printer) PrintErrorToken(tk *token.Token, isColored bool) string {
+	errToken := tk
+	curLine := tk.Position.Line
+	curExtLine := curLine + p.newLineCount(p.removeLeftSideNewLineChar(tk.Origin))
+	if p.isNewLineLastChar(tk.Origin) {
+		// if last character ( exclude white space ) is new line character, ignore it.
+		curExtLine--
+	}
+
+	minLine := int(math.Max(float64(curLine-3), 1))
+	maxLine := curExtLine + 3
+	p.setupErrorTokenFormat(curLine, isColored)
+
+	beforeTokens := p.printBeforeTokens(tk, minLine, curExtLine)
+	lastTk := beforeTokens[len(beforeTokens)-1]
+	afterTokens := p.printAfterTokens(lastTk.Next, maxLine)
+
+	beforeSource := p.PrintTokens(beforeTokens)
+	prefixSpaceNum := len(fmt.Sprintf("  %2d | ", curLine))
+	annotateLine := strings.Repeat(" ", prefixSpaceNum+errToken.Position.Column-1) + "^"
+	afterSource := p.PrintTokens(afterTokens)
+	return fmt.Sprintf("%s\n%s\n%s", beforeSource, annotateLine, afterSource)
+}

sesh/vendor/github.com/goccy/go-yaml/scanner/context.go

@@ -0,0 +1,452 @@
+package scanner
+
+import (
+	"errors"
+	"strconv"
+	"strings"
+	"sync"
+
+	"github.com/goccy/go-yaml/token"
+)
+
+// Context context at scanning
+type Context struct {
+	idx                int
+	size               int
+	notSpaceCharPos    int
+	notSpaceOrgCharPos int
+	src                []rune
+	buf                []rune
+	obuf               []rune
+	tokens             token.Tokens
+	mstate             *MultiLineState
+}
+
+type MultiLineState struct {
+	opt                              string
+	firstLineIndentColumn            int
+	prevLineIndentColumn             int
+	lineIndentColumn                 int
+	lastNotSpaceOnlyLineIndentColumn int
+	spaceOnlyIndentColumn            int
+	foldedNewLine                    bool
+	isRawFolded                      bool
+	isLiteral                        bool
+	isFolded                         bool
+}
+
+var (
+	ctxPool = sync.Pool{
+		New: func() interface{} {
+			return createContext()
+		},
+	}
+)
+
+func createContext() *Context {
+	return &Context{
+		idx:    0,
+		tokens: token.Tokens{},
+	}
+}
+
+func newContext(src []rune) *Context {
+	ctx, _ := ctxPool.Get().(*Context)
+	ctx.reset(src)
+	return ctx
+}
+
+func (c *Context) release() {
+	ctxPool.Put(c)
+}
+
+func (c *Context) clear() {
+	c.resetBuffer()
+	c.mstate = nil
+}
+
+func (c *Context) reset(src []rune) {
+	c.idx = 0
+	c.size = len(src)
+	c.src = src
+	c.tokens = c.tokens[:0]
+	c.resetBuffer()
+	c.mstate = nil
+}
+
+func (c *Context) resetBuffer() {
+	c.buf = c.buf[:0]
+	c.obuf = c.obuf[:0]
+	c.notSpaceCharPos = 0
+	c.notSpaceOrgCharPos = 0
+}
+
+func (c *Context) breakMultiLine() {
+	c.mstate = nil
+}
+
+func (c *Context) getMultiLineState() *MultiLineState {
+	return c.mstate
+}
+
+func (c *Context) setLiteral(lastDelimColumn int, opt string) {
+	mstate := &MultiLineState{
+		isLiteral: true,
+		opt:       opt,
+	}
+	indent := firstLineIndentColumnByOpt(opt)
+	if indent > 0 {
+		mstate.firstLineIndentColumn = lastDelimColumn + indent
+	}
+	c.mstate = mstate
+}
+
+func (c *Context) setFolded(lastDelimColumn int, opt string) {
+	mstate := &MultiLineState{
+		isFolded: true,
+		opt:      opt,
+	}
+	indent := firstLineIndentColumnByOpt(opt)
+	if indent > 0 {
+		mstate.firstLineIndentColumn = lastDelimColumn + indent
+	}
+	c.mstate = mstate
+}
+
+func (c *Context) setRawFolded(column int) {
+	mstate := &MultiLineState{
+		isRawFolded: true,
+	}
+	mstate.updateIndentColumn(column)
+	c.mstate = mstate
+}
+
+func firstLineIndentColumnByOpt(opt string) int {
+	opt = strings.TrimPrefix(opt, "-")
+	opt = strings.TrimPrefix(opt, "+")
+	opt = strings.TrimSuffix(opt, "-")
+	opt = strings.TrimSuffix(opt, "+")
+	i, _ := strconv.ParseInt(opt, 10, 64)
+	return int(i)
+}
+
+func (s *MultiLineState) lastDelimColumn() int {
+	if s.firstLineIndentColumn == 0 {
+		return 0
+	}
+	return s.firstLineIndentColumn - 1
+}
+
+func (s *MultiLineState) updateIndentColumn(column int) {
+	if s.firstLineIndentColumn == 0 {
+		s.firstLineIndentColumn = column
+	}
+	if s.lineIndentColumn == 0 {
+		s.lineIndentColumn = column
+	}
+}
+
+func (s *MultiLineState) updateSpaceOnlyIndentColumn(column int) {
+	if s.firstLineIndentColumn != 0 {
+		return
+	}
+	s.spaceOnlyIndentColumn = column
+}
+
+func (s *MultiLineState) validateIndentAfterSpaceOnly(column int) error {
+	if s.firstLineIndentColumn != 0 {
+		return nil
+	}
+	if s.spaceOnlyIndentColumn > column {
+		return errors.New("invalid number of indent is specified after space only")
+	}
+	return nil
+}
+
+func (s *MultiLineState) validateIndentColumn() error {
+	if firstLineIndentColumnByOpt(s.opt) == 0 {
+		return nil
+	}
+	if s.firstLineIndentColumn > s.lineIndentColumn {
+		return errors.New("invalid number of indent is specified in the multi-line header")
+	}
+	return nil
+}
+
+func (s *MultiLineState) updateNewLineState() {
+	s.prevLineIndentColumn = s.lineIndentColumn
+	if s.lineIndentColumn != 0 {
+		s.lastNotSpaceOnlyLineIndentColumn = s.lineIndentColumn
+	}
+	s.foldedNewLine = true
+	s.lineIndentColumn = 0
+}
+
+func (s *MultiLineState) isIndentColumn(column int) bool {
+	if s.firstLineIndentColumn == 0 {
+		return column == 1
+	}
+	return s.firstLineIndentColumn > column
+}
+
+func (s *MultiLineState) addIndent(ctx *Context, column int) {
+	if s.firstLineIndentColumn == 0 {
+		return
+	}
+
+	// If the first line of the document has already been evaluated, the number is treated as the threshold, since the `firstLineIndentColumn` is a positive number.
+	if column < s.firstLineIndentColumn {
+		return
+	}
+
+	// `c.foldedNewLine` is a variable that is set to true for every newline.
+	if !s.isLiteral && s.foldedNewLine {
+		s.foldedNewLine = false
+	}
+	// Since addBuf ignore space character, add to the buffer directly.
+	ctx.buf = append(ctx.buf, ' ')
+	ctx.notSpaceCharPos = len(ctx.buf)
+}
+
+// updateNewLineInFolded if Folded or RawFolded context and the content on the current line starts at the same column as the previous line,
+// treat the new-line-char as a space.
+func (s *MultiLineState) updateNewLineInFolded(ctx *Context, column int) {
+	if s.isLiteral {
+		return
+	}
+
+	// Folded or RawFolded.
+
+	if !s.foldedNewLine {
+		return
+	}
+	var (
+		lastChar     rune
+		prevLastChar rune
+	)
+	if len(ctx.buf) != 0 {
+		lastChar = ctx.buf[len(ctx.buf)-1]
+	}
+	if len(ctx.buf) > 1 {
+		prevLastChar = ctx.buf[len(ctx.buf)-2]
+	}
+	if s.lineIndentColumn == s.prevLineIndentColumn {
+		// ---
+		// >
+		//  a
+		//  b
+		if lastChar == '\n' {
+			ctx.buf[len(ctx.buf)-1] = ' '
+		}
+	} else if s.prevLineIndentColumn == 0 && s.lastNotSpaceOnlyLineIndentColumn == column {
+		// if previous line is indent-space and new-line-char only, prevLineIndentColumn is zero.
+		// In this case, last new-line-char is removed.
+		// ---
+		// >
+		//  a
+		//
+		//  b
+		if lastChar == '\n' && prevLastChar == '\n' {
+			ctx.buf = ctx.buf[:len(ctx.buf)-1]
+			ctx.notSpaceCharPos = len(ctx.buf)
+		}
+	}
+	s.foldedNewLine = false
+}
+
+func (s *MultiLineState) hasTrimAllEndNewlineOpt() bool {
+	return strings.HasPrefix(s.opt, "-") || strings.HasSuffix(s.opt, "-") || s.isRawFolded
+}
+
+func (s *MultiLineState) hasKeepAllEndNewlineOpt() bool {
+	return strings.HasPrefix(s.opt, "+") || strings.HasSuffix(s.opt, "+")
+}
+
+func (c *Context) addToken(tk *token.Token) {
+	if tk == nil {
+		return
+	}
+	c.tokens = append(c.tokens, tk)
+}
+
+func (c *Context) addBuf(r rune) {
+	if len(c.buf) == 0 && (r == ' ' || r == '\t') {
+		return
+	}
+	c.buf = append(c.buf, r)
+	if r != ' ' && r != '\t' {
+		c.notSpaceCharPos = len(c.buf)
+	}
+}
+
+func (c *Context) addBufWithTab(r rune) {
+	if len(c.buf) == 0 && r == ' ' {
+		return
+	}
+	c.buf = append(c.buf, r)
+	if r != ' ' {
+		c.notSpaceCharPos = len(c.buf)
+	}
+}
+
+func (c *Context) addOriginBuf(r rune) {
+	c.obuf = append(c.obuf, r)
+	if r != ' ' && r != '\t' {
+		c.notSpaceOrgCharPos = len(c.obuf)
+	}
+}
+
+func (c *Context) removeRightSpaceFromBuf() {
+	trimmedBuf := c.obuf[:c.notSpaceOrgCharPos]
+	buflen := len(trimmedBuf)
+	diff := len(c.obuf) - buflen
+	if diff > 0 {
+		c.obuf = c.obuf[:buflen]
+		c.buf = c.bufferedSrc()
+	}
+}
+
+func (c *Context) isEOS() bool {
+	return len(c.src)-1 <= c.idx
+}
+
+func (c *Context) isNextEOS() bool {
+	return len(c.src) <= c.idx+1
+}
+
+func (c *Context) next() bool {
+	return c.idx < c.size
+}
+
+func (c *Context) source(s, e int) string {
+	return string(c.src[s:e])
+}
+
+func (c *Context) previousChar() rune {
+	if c.idx > 0 {
+		return c.src[c.idx-1]
+	}
+	return rune(0)
+}
+
+func (c *Context) currentChar() rune {
+	if c.size > c.idx {
+		return c.src[c.idx]
+	}
+	return rune(0)
+}
+
+func (c *Context) nextChar() rune {
+	if c.size > c.idx+1 {
+		return c.src[c.idx+1]
+	}
+	return rune(0)
+}
+
+func (c *Context) repeatNum(r rune) int {
+	cnt := 0
+	for i := c.idx; i < c.size; i++ {
+		if c.src[i] == r {
+			cnt++
+		} else {
+			break
+		}
+	}
+	return cnt
+}
+
+func (c *Context) progress(num int) {
+	c.idx += num
+}
+
+func (c *Context) existsBuffer() bool {
+	return len(c.bufferedSrc()) != 0
+}
+
+func (c *Context) isMultiLine() bool {
+	return c.mstate != nil
+}
+
+func (c *Context) bufferedSrc() []rune {
+	src := c.buf[:c.notSpaceCharPos]
+	if c.isMultiLine() {
+		mstate := c.getMultiLineState()
+		// remove end '\n' character and trailing empty lines.
+		// https://yaml.org/spec/1.2.2/#8112-block-chomping-indicator
+		if mstate.hasTrimAllEndNewlineOpt() {
+			// If the '-' flag is specified, all trailing newline characters will be removed.
+			src = []rune(strings.TrimRight(string(src), "\n"))
+		} else if !mstate.hasKeepAllEndNewlineOpt() {
+			// Normally, all but one of the trailing newline characters are removed.
+			var newLineCharCount int
+			for i := len(src) - 1; i >= 0; i-- {
+				if src[i] == '\n' {
+					newLineCharCount++
+					continue
+				}
+				break
+			}
+			removedNewLineCharCount := newLineCharCount - 1
+			for removedNewLineCharCount > 0 {
+				src = []rune(strings.TrimSuffix(string(src), "\n"))
+				removedNewLineCharCount--
+			}
+		}
+
+		// If the text ends with a space character, remove all of them.
+		if mstate.hasTrimAllEndNewlineOpt() {
+			src = []rune(strings.TrimRight(string(src), " "))
+		}
+		if string(src) == "\n" {
+			// If the content consists only of a newline,
+			// it can be considered as the document ending without any specified value,
+			// so it is treated as an empty string.
+			src = []rune{}
+		}
+		if mstate.hasKeepAllEndNewlineOpt() && len(src) == 0 {
+			src = []rune{'\n'}
+		}
+	}
+	return src
+}
+
+func (c *Context) bufferedToken(pos *token.Position) *token.Token {
+	if c.idx == 0 {
+		return nil
+	}
+	source := c.bufferedSrc()
+	if len(source) == 0 {
+		c.buf = c.buf[:0] // clear value's buffer only.
+		return nil
+	}
+	var tk *token.Token
+	if c.isMultiLine() {
+		tk = token.String(string(source), string(c.obuf), pos)
+	} else {
+		tk = token.New(string(source), string(c.obuf), pos)
+	}
+	c.setTokenTypeByPrevTag(tk)
+	c.resetBuffer()
+	return tk
+}
+
+func (c *Context) setTokenTypeByPrevTag(tk *token.Token) {
+	lastTk := c.lastToken()
+	if lastTk == nil {
+		return
+	}
+	if lastTk.Type != token.TagType {
+		return
+	}
+	tag := token.ReservedTagKeyword(lastTk.Value)
+	if _, exists := token.ReservedTagKeywordMap[tag]; !exists {
+		tk.Type = token.StringType
+	}
+}
+
+func (c *Context) lastToken() *token.Token {
+	if len(c.tokens) != 0 {
+		return c.tokens[len(c.tokens)-1]
+	}
+	return nil
+}

sesh/vendor/github.com/goccy/go-yaml/scanner/error.go

@@ -0,0 +1,17 @@
+package scanner
+
+import "github.com/goccy/go-yaml/token"
+
+type InvalidTokenError struct {
+	Token *token.Token
+}
+
+func (e *InvalidTokenError) Error() string {
+	return e.Token.Error
+}
+
+func ErrInvalidToken(tk *token.Token) *InvalidTokenError {
+	return &InvalidTokenError{
+		Token: tk,
+	}
+}

sesh/vendor/github.com/goccy/go-yaml/stdlib_quote.go

@@ -0,0 +1,113 @@
+// Copied and trimmed down from https://github.com/golang/go/blob/e3769299cd3484e018e0e2a6e1b95c2b18ce4f41/src/strconv/quote.go
+// We want to use the standard library's private "quoteWith" function rather than write our own so that we get robust unicode support.
+// Every private function called by quoteWith was copied.
+// There are 2 modifications to simplify the code:
+// 1. The unicode.IsPrint function was substituted for the custom implementation of IsPrint
+// 2. All code paths reachable only when ASCIIonly or grphicOnly are set to true were removed.
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package yaml
+
+import (
+	"unicode"
+	"unicode/utf8"
+)
+
+const (
+	lowerhex = "0123456789abcdef"
+)
+
+func quoteWith(s string, quote byte) string {
+	return string(appendQuotedWith(make([]byte, 0, 3*len(s)/2), s, quote))
+}
+
+func appendQuotedWith(buf []byte, s string, quote byte) []byte {
+	// Often called with big strings, so preallocate. If there's quoting,
+	// this is conservative but still helps a lot.
+	if cap(buf)-len(buf) < len(s) {
+		nBuf := make([]byte, len(buf), len(buf)+1+len(s)+1)
+		copy(nBuf, buf)
+		buf = nBuf
+	}
+	buf = append(buf, quote)
+	for width := 0; len(s) > 0; s = s[width:] {
+		r := rune(s[0])
+		width = 1
+		if r >= utf8.RuneSelf {
+			r, width = utf8.DecodeRuneInString(s)
+		}
+		if width == 1 && r == utf8.RuneError {
+			buf = append(buf, `\x`...)
+			buf = append(buf, lowerhex[s[0]>>4])
+			buf = append(buf, lowerhex[s[0]&0xF])
+			continue
+		}
+		buf = appendEscapedRune(buf, r, quote)
+	}
+	buf = append(buf, quote)
+	return buf
+}
+
+func appendEscapedRune(buf []byte, r rune, quote byte) []byte {
+	var runeTmp [utf8.UTFMax]byte
+	// goccy/go-yaml patch on top of the standard library's appendEscapedRune function.
+	//
+	// We use this to implement the YAML single-quoted string, where the only escape sequence is '', which represents a single quote.
+	// The below snippet from the standard library is for escaping e.g. \ with \\, which is not what we want for the single-quoted string.
+	//
+	// if r == rune(quote) || r == '\\' { // always backslashed
+	// 	buf = append(buf, '\\')
+	// 	buf = append(buf, byte(r))
+	// 	return buf
+	// }
+	if r == rune(quote) {
+		buf = append(buf, byte(r))
+		buf = append(buf, byte(r))
+		return buf
+	}
+	if unicode.IsPrint(r) {
+		n := utf8.EncodeRune(runeTmp[:], r)
+		buf = append(buf, runeTmp[:n]...)
+		return buf
+	}
+	switch r {
+	case '\a':
+		buf = append(buf, `\a`...)
+	case '\b':
+		buf = append(buf, `\b`...)
+	case '\f':
+		buf = append(buf, `\f`...)
+	case '\n':
+		buf = append(buf, `\n`...)
+	case '\r':
+		buf = append(buf, `\r`...)
+	case '\t':
+		buf = append(buf, `\t`...)
+	case '\v':
+		buf = append(buf, `\v`...)
+	default:
+		switch {
+		case r < ' ':
+			buf = append(buf, `\x`...)
+			buf = append(buf, lowerhex[byte(r)>>4])
+			buf = append(buf, lowerhex[byte(r)&0xF])
+		case r > utf8.MaxRune:
+			r = 0xFFFD
+			fallthrough
+		case r < 0x10000:
+			buf = append(buf, `\u`...)
+			for s := 12; s >= 0; s -= 4 {
+				buf = append(buf, lowerhex[r>>uint(s)&0xF])
+			}
+		default:
+			buf = append(buf, `\U`...)
+			for s := 28; s >= 0; s -= 4 {
+				buf = append(buf, lowerhex[r>>uint(s)&0xF])
+			}
+		}
+	}
+	return buf
+}

sesh/vendor/github.com/goccy/go-yaml/struct.go

@@ -0,0 +1,128 @@
+package yaml
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+const (
+	// StructTagName tag keyword for Marshal/Unmarshal
+	StructTagName = "yaml"
+)
+
+// StructField information for each the field in structure
+type StructField struct {
+	FieldName    string
+	RenderName   string
+	AnchorName   string
+	AliasName    string
+	IsAutoAnchor bool
+	IsAutoAlias  bool
+	IsOmitEmpty  bool
+	IsOmitZero   bool
+	IsFlow       bool
+	IsInline     bool
+}
+
+func getTag(field reflect.StructField) string {
+	// If struct tag `yaml` exist, use that. If no `yaml`
+	// exists, but `json` does, use that and try the best to
+	// adhere to its rules
+	tag := field.Tag.Get(StructTagName)
+	if tag == "" {
+		tag = field.Tag.Get(`json`)
+	}
+	return tag
+}
+
+func structField(field reflect.StructField) *StructField {
+	tag := getTag(field)
+	fieldName := strings.ToLower(field.Name)
+	options := strings.Split(tag, ",")
+	if len(options) > 0 {
+		if options[0] != "" {
+			fieldName = options[0]
+		}
+	}
+	sf := &StructField{
+		FieldName:  field.Name,
+		RenderName: fieldName,
+	}
+	if len(options) > 1 {
+		for _, opt := range options[1:] {
+			switch {
+			case opt == "omitempty":
+				sf.IsOmitEmpty = true
+			case opt == "omitzero":
+				sf.IsOmitZero = true
+			case opt == "flow":
+				sf.IsFlow = true
+			case opt == "inline":
+				sf.IsInline = true
+			case strings.HasPrefix(opt, "anchor"):
+				anchor := strings.Split(opt, "=")
+				if len(anchor) > 1 {
+					sf.AnchorName = anchor[1]
+				} else {
+					sf.IsAutoAnchor = true
+				}
+			case strings.HasPrefix(opt, "alias"):
+				alias := strings.Split(opt, "=")
+				if len(alias) > 1 {
+					sf.AliasName = alias[1]
+				} else {
+					sf.IsAutoAlias = true
+				}
+			default:
+			}
+		}
+	}
+	return sf
+}
+
+func isIgnoredStructField(field reflect.StructField) bool {
+	if field.PkgPath != "" && !field.Anonymous {
+		// private field
+		return true
+	}
+	return getTag(field) == "-"
+}
+
+type StructFieldMap map[string]*StructField
+
+func (m StructFieldMap) isIncludedRenderName(name string) bool {
+	for _, v := range m {
+		if !v.IsInline && v.RenderName == name {
+			return true
+		}
+	}
+	return false
+}
+
+func (m StructFieldMap) hasMergeProperty() bool {
+	for _, v := range m {
+		if v.IsOmitEmpty && v.IsInline && v.IsAutoAlias {
+			return true
+		}
+	}
+	return false
+}
+
+func structFieldMap(structType reflect.Type) (StructFieldMap, error) {
+	fieldMap := StructFieldMap{}
+	renderNameMap := map[string]struct{}{}
+	for i := 0; i < structType.NumField(); i++ {
+		field := structType.Field(i)
+		if isIgnoredStructField(field) {
+			continue
+		}
+		sf := structField(field)
+		if _, exists := renderNameMap[sf.RenderName]; exists {
+			return nil, fmt.Errorf("duplicated struct field name %s", sf.RenderName)
+		}
+		fieldMap[sf.FieldName] = sf
+		renderNameMap[sf.RenderName] = struct{}{}
+	}
+	return fieldMap, nil
+}

sesh/vendor/github.com/goccy/go-yaml/validate.go

@@ -0,0 +1,13 @@
+package yaml
+
+// StructValidator need to implement Struct method only
+// ( see https://pkg.go.dev/github.com/go-playground/validator/v10#Validate.Struct )
+type StructValidator interface {
+	Struct(interface{}) error
+}
+
+// FieldError need to implement StructField method only
+// ( see https://pkg.go.dev/github.com/go-playground/validator/v10#FieldError )
+type FieldError interface {
+	StructField() string
+}

sesh/vendor/github.com/goccy/go-yaml/yaml.go

@@ -0,0 +1,357 @@
+package yaml
+
+import (
+	"bytes"
+	"context"
+	"io"
+	"reflect"
+	"sync"
+
+	"github.com/goccy/go-yaml/ast"
+	"github.com/goccy/go-yaml/internal/errors"
+)
+
+// BytesMarshaler interface may be implemented by types to customize their
+// behavior when being marshaled into a YAML document. The returned value
+// is marshaled in place of the original value implementing Marshaler.
+//
+// If an error is returned by MarshalYAML, the marshaling procedure stops
+// and returns with the provided error.
+type BytesMarshaler interface {
+	MarshalYAML() ([]byte, error)
+}
+
+// BytesMarshalerContext interface use BytesMarshaler with context.Context.
+type BytesMarshalerContext interface {
+	MarshalYAML(context.Context) ([]byte, error)
+}
+
+// InterfaceMarshaler interface has MarshalYAML compatible with github.com/go-yaml/yaml package.
+type InterfaceMarshaler interface {
+	MarshalYAML() (interface{}, error)
+}
+
+// InterfaceMarshalerContext interface use InterfaceMarshaler with context.Context.
+type InterfaceMarshalerContext interface {
+	MarshalYAML(context.Context) (interface{}, error)
+}
+
+// BytesUnmarshaler interface may be implemented by types to customize their
+// behavior when being unmarshaled from a YAML document.
+type BytesUnmarshaler interface {
+	UnmarshalYAML([]byte) error
+}
+
+// BytesUnmarshalerContext interface use BytesUnmarshaler with context.Context.
+type BytesUnmarshalerContext interface {
+	UnmarshalYAML(context.Context, []byte) error
+}
+
+// InterfaceUnmarshaler interface has UnmarshalYAML compatible with github.com/go-yaml/yaml package.
+type InterfaceUnmarshaler interface {
+	UnmarshalYAML(func(interface{}) error) error
+}
+
+// InterfaceUnmarshalerContext interface use InterfaceUnmarshaler with context.Context.
+type InterfaceUnmarshalerContext interface {
+	UnmarshalYAML(context.Context, func(interface{}) error) error
+}
+
+// NodeUnmarshaler interface is similar to BytesUnmarshaler but provide related AST node instead of raw YAML source.
+type NodeUnmarshaler interface {
+	UnmarshalYAML(ast.Node) error
+}
+
+// NodeUnmarshalerContext interface is similar to BytesUnmarshaler but provide related AST node instead of raw YAML source.
+type NodeUnmarshalerContext interface {
+	UnmarshalYAML(context.Context, ast.Node) error
+}
+
+// MapItem is an item in a MapSlice.
+type MapItem struct {
+	Key, Value interface{}
+}
+
+// MapSlice encodes and decodes as a YAML map.
+// The order of keys is preserved when encoding and decoding.
+type MapSlice []MapItem
+
+// ToMap convert to map[interface{}]interface{}.
+func (s MapSlice) ToMap() map[interface{}]interface{} {
+	v := map[interface{}]interface{}{}
+	for _, item := range s {
+		v[item.Key] = item.Value
+	}
+	return v
+}
+
+// Marshal serializes the value provided into a YAML document. The structure
+// of the generated document will reflect the structure of the value itself.
+// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
+//
+// Struct fields are only marshaled if they are exported (have an upper case
+// first letter), and are marshaled using the field name lowercased as the
+// default key. Custom keys may be defined via the "yaml" name in the field
+// tag: the content preceding the first comma is used as the key, and the
+// following comma-separated options are used to tweak the marshaling process.
+// Conflicting names result in a runtime error.
+//
+// The field tag format accepted is:
+//
+//	`(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
+//
+// The following flags are currently supported:
+//
+//	omitempty    Only include the field if it's not set to the zero
+//	             value for the type or to empty slices or maps.
+//	             Zero valued structs will be omitted if all their public
+//	             fields are zero, unless they implement an IsZero
+//	             method (see the IsZeroer interface type), in which
+//	             case the field will be included if that method returns true.
+//	             Note that this definition is slightly different from the Go's
+//	             encoding/json 'omitempty' definition. It combines some elements
+//	             of 'omitempty' and 'omitzero'. See https://github.com/goccy/go-yaml/issues/695.
+//
+//	omitzero      The omitzero tag behaves in the same way as the interpretation of the omitzero tag in the encoding/json library.
+//	              1) If the field type has an "IsZero() bool" method, that will be used to determine whether the value is zero.
+//	              2) Otherwise, the value is zero if it is the zero value for its type.
+//
+//	flow         Marshal using a flow style (useful for structs,
+//	             sequences and maps).
+//
+//	inline       Inline the field, which must be a struct or a map,
+//	             causing all of its fields or keys to be processed as if
+//	             they were part of the outer struct. For maps, keys must
+//	             not conflict with the yaml keys of other struct fields.
+//
+//	anchor       Marshal with anchor. If want to define anchor name explicitly, use anchor=name style.
+//	             Otherwise, if used 'anchor' name only, used the field name lowercased as the anchor name
+//
+//	alias        Marshal with alias. If want to define alias name explicitly, use alias=name style.
+//	             Otherwise, If omitted alias name and the field type is pointer type,
+//	             assigned anchor name automatically from same pointer address.
+//
+// In addition, if the key is "-", the field is ignored.
+//
+// For example:
+//
+//	type T struct {
+//	    F int `yaml:"a,omitempty"`
+//	    B int
+//	}
+//	yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
+//	yaml.Marshal(&T{F: 1}) // Returns "a: 1\nb: 0\n"
+func Marshal(v interface{}) ([]byte, error) {
+	return MarshalWithOptions(v)
+}
+
+// MarshalWithOptions serializes the value provided into a YAML document with EncodeOptions.
+func MarshalWithOptions(v interface{}, opts ...EncodeOption) ([]byte, error) {
+	return MarshalContext(context.Background(), v, opts...)
+}
+
+// MarshalContext serializes the value provided into a YAML document with context.Context and EncodeOptions.
+func MarshalContext(ctx context.Context, v interface{}, opts ...EncodeOption) ([]byte, error) {
+	var buf bytes.Buffer
+	if err := NewEncoder(&buf, opts...).EncodeContext(ctx, v); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+// ValueToNode convert from value to ast.Node.
+func ValueToNode(v interface{}, opts ...EncodeOption) (ast.Node, error) {
+	var buf bytes.Buffer
+	node, err := NewEncoder(&buf, opts...).EncodeToNode(v)
+	if err != nil {
+		return nil, err
+	}
+	return node, nil
+}
+
+// Unmarshal decodes the first document found within the in byte slice
+// and assigns decoded values into the out value.
+//
+// Struct fields are only unmarshalled if they are exported (have an
+// upper case first letter), and are unmarshalled using the field name
+// lowercased as the default key. Custom keys may be defined via the
+// "yaml" name in the field tag: the content preceding the first comma
+// is used as the key, and the following comma-separated options are
+// used to tweak the marshaling process (see Marshal).
+// Conflicting names result in a runtime error.
+//
+// For example:
+//
+//	type T struct {
+//	    F int `yaml:"a,omitempty"`
+//	    B int
+//	}
+//	var t T
+//	yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
+//
+// See the documentation of Marshal for the format of tags and a list of
+// supported tag options.
+func Unmarshal(data []byte, v interface{}) error {
+	return UnmarshalWithOptions(data, v)
+}
+
+// UnmarshalWithOptions decodes with DecodeOptions the first document found within the in byte slice
+// and assigns decoded values into the out value.
+func UnmarshalWithOptions(data []byte, v interface{}, opts ...DecodeOption) error {
+	return UnmarshalContext(context.Background(), data, v, opts...)
+}
+
+// UnmarshalContext decodes with context.Context and DecodeOptions.
+func UnmarshalContext(ctx context.Context, data []byte, v interface{}, opts ...DecodeOption) error {
+	dec := NewDecoder(bytes.NewBuffer(data), opts...)
+	if err := dec.DecodeContext(ctx, v); err != nil {
+		if err == io.EOF {
+			return nil
+		}
+		return err
+	}
+	return nil
+}
+
+// NodeToValue converts node to the value pointed to by v.
+func NodeToValue(node ast.Node, v interface{}, opts ...DecodeOption) error {
+	var buf bytes.Buffer
+	if err := NewDecoder(&buf, opts...).DecodeFromNode(node, v); err != nil {
+		return err
+	}
+	return nil
+}
+
+// FormatError is a utility function that takes advantage of the metadata
+// stored in the errors returned by this package's parser.
+//
+// If the second argument `colored` is true, the error message is colorized.
+// If the third argument `inclSource` is true, the error message will
+// contain snippets of the YAML source that was used.
+func FormatError(e error, colored, inclSource bool) string {
+	var yamlErr Error
+	if errors.As(e, &yamlErr) {
+		return yamlErr.FormatError(colored, inclSource)
+	}
+
+	return e.Error()
+}
+
+// YAMLToJSON convert YAML bytes to JSON.
+func YAMLToJSON(bytes []byte) ([]byte, error) {
+	var v interface{}
+	if err := UnmarshalWithOptions(bytes, &v, UseOrderedMap()); err != nil {
+		return nil, err
+	}
+	out, err := MarshalWithOptions(v, JSON())
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// JSONToYAML convert JSON bytes to YAML.
+func JSONToYAML(bytes []byte) ([]byte, error) {
+	var v interface{}
+	if err := UnmarshalWithOptions(bytes, &v, UseOrderedMap()); err != nil {
+		return nil, err
+	}
+	out, err := Marshal(v)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+var (
+	globalCustomMarshalerMu    sync.Mutex
+	globalCustomUnmarshalerMu  sync.Mutex
+	globalCustomMarshalerMap   = map[reflect.Type]func(context.Context, interface{}) ([]byte, error){}
+	globalCustomUnmarshalerMap = map[reflect.Type]func(context.Context, interface{}, []byte) error{}
+)
+
+// RegisterCustomMarshaler overrides any encoding process for the type specified in generics.
+// If you want to switch the behavior for each encoder, use `CustomMarshaler` defined as EncodeOption.
+//
+// NOTE: If type T implements MarshalYAML for pointer receiver, the type specified in RegisterCustomMarshaler must be *T.
+// If RegisterCustomMarshaler and CustomMarshaler of EncodeOption are specified for the same type,
+// the CustomMarshaler specified in EncodeOption takes precedence.
+func RegisterCustomMarshaler[T any](marshaler func(T) ([]byte, error)) {
+	globalCustomMarshalerMu.Lock()
+	defer globalCustomMarshalerMu.Unlock()
+
+	var typ T
+	globalCustomMarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}) ([]byte, error) {
+		return marshaler(v.(T))
+	}
+}
+
+// RegisterCustomMarshalerContext overrides any encoding process for the type specified in generics.
+// Similar to RegisterCustomMarshalerContext, but allows passing a context to the unmarshaler function.
+func RegisterCustomMarshalerContext[T any](marshaler func(context.Context, T) ([]byte, error)) {
+	globalCustomMarshalerMu.Lock()
+	defer globalCustomMarshalerMu.Unlock()
+
+	var typ T
+	globalCustomMarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}) ([]byte, error) {
+		return marshaler(ctx, v.(T))
+	}
+}
+
+// RegisterCustomUnmarshaler overrides any decoding process for the type specified in generics.
+// If you want to switch the behavior for each decoder, use `CustomUnmarshaler` defined as DecodeOption.
+//
+// NOTE: If RegisterCustomUnmarshaler and CustomUnmarshaler of DecodeOption are specified for the same type,
+// the CustomUnmarshaler specified in DecodeOption takes precedence.
+func RegisterCustomUnmarshaler[T any](unmarshaler func(*T, []byte) error) {
+	globalCustomUnmarshalerMu.Lock()
+	defer globalCustomUnmarshalerMu.Unlock()
+
+	var typ *T
+	globalCustomUnmarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}, b []byte) error {
+		return unmarshaler(v.(*T), b)
+	}
+}
+
+// RegisterCustomUnmarshalerContext overrides any decoding process for the type specified in generics.
+// Similar to RegisterCustomUnmarshalerContext, but allows passing a context to the unmarshaler function.
+func RegisterCustomUnmarshalerContext[T any](unmarshaler func(context.Context, *T, []byte) error) {
+	globalCustomUnmarshalerMu.Lock()
+	defer globalCustomUnmarshalerMu.Unlock()
+
+	var typ *T
+	globalCustomUnmarshalerMap[reflect.TypeOf(typ)] = func(ctx context.Context, v interface{}, b []byte) error {
+		return unmarshaler(ctx, v.(*T), b)
+	}
+}
+
+// RawMessage is a raw encoded YAML value. It implements [BytesMarshaler] and
+// [BytesUnmarshaler] and can be used to delay YAML decoding or precompute a YAML
+// encoding.
+// It also implements [json.Marshaler] and [json.Unmarshaler].
+//
+// This is similar to [json.RawMessage] in the stdlib.
+type RawMessage []byte
+
+func (m RawMessage) MarshalYAML() ([]byte, error) {
+	if m == nil {
+		return []byte("null"), nil
+	}
+	return m, nil
+}
+
+func (m *RawMessage) UnmarshalYAML(dt []byte) error {
+	if m == nil {
+		return errors.New("yaml.RawMessage: UnmarshalYAML on nil pointer")
+	}
+	*m = append((*m)[0:0], dt...)
+	return nil
+}
+
+func (m *RawMessage) UnmarshalJSON(b []byte) error {
+	return m.UnmarshalYAML(b)
+}
+
+func (m RawMessage) MarshalJSON() ([]byte, error) {
+	return YAMLToJSON(m)
+}

sesh/vendor/gopkg.in/yaml.v3/LICENSE

@@ -1,50 +0,0 @@
-
-This project is covered by two different licenses: MIT and Apache.
-
-#### MIT License ####
-
-The following files were ported to Go from C files of libyaml, and thus
-are still covered by their original MIT license, with the additional
-copyright staring in 2011 when the project was ported over:
-
-    apic.go emitterc.go parserc.go readerc.go scannerc.go
-    writerc.go yamlh.go yamlprivateh.go
-
-Copyright (c) 2006-2010 Kirill Simonov
-Copyright (c) 2006-2011 Kirill Simonov
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-### Apache License ###
-
-All the remaining project files are covered by the Apache license:
-
-Copyright (c) 2011-2019 Canonical Ltd
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.

sesh/vendor/gopkg.in/yaml.v3/NOTICE

@@ -1,13 +0,0 @@
-Copyright 2011-2016 Canonical Ltd.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.

sesh/vendor/gopkg.in/yaml.v3/README.md

@@ -1,150 +0,0 @@
-# YAML support for the Go language
-
-Introduction
-------------
-
-The yaml package enables Go programs to comfortably encode and decode YAML
-values. It was developed within [Canonical](https://www.canonical.com) as
-part of the [juju](https://juju.ubuntu.com) project, and is based on a
-pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
-C library to parse and generate YAML data quickly and reliably.
-
-Compatibility
--------------
-
-The yaml package supports most of YAML 1.2, but preserves some behavior
-from 1.1 for backwards compatibility.
-
-Specifically, as of v3 of the yaml package:
-
- - YAML 1.1 bools (_yes/no, on/off_) are supported as long as they are being
-   decoded into a typed bool value. Otherwise they behave as a string. Booleans
-   in YAML 1.2 are _true/false_ only.
- - Octals encode and decode as _0777_ per YAML 1.1, rather than _0o777_
-   as specified in YAML 1.2, because most parsers still use the old format.
-   Octals in the  _0o777_ format are supported though, so new files work.
- - Does not support base-60 floats. These are gone from YAML 1.2, and were
-   actually never supported by this package as it's clearly a poor choice.
-
-and offers backwards
-compatibility with YAML 1.1 in some cases.
-1.2, including support for
-anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
-implemented, and base-60 floats from YAML 1.1 are purposefully not
-supported since they're a poor design and are gone in YAML 1.2.
-
-Installation and usage
-----------------------
-
-The import path for the package is *gopkg.in/yaml.v3*.
-
-To install it, run:
-
-    go get gopkg.in/yaml.v3
-
-API documentation
------------------
-
-If opened in a browser, the import path itself leads to the API documentation:
-
-  - [https://gopkg.in/yaml.v3](https://gopkg.in/yaml.v3)
-
-API stability
--------------
-
-The package API for yaml v3 will remain stable as described in [gopkg.in](https://gopkg.in).
-
-
-License
--------
-
-The yaml package is licensed under the MIT and Apache License 2.0 licenses.
-Please see the LICENSE file for details.
-
-
-Example
--------
-
-```Go
-package main
-
-import (
-        "fmt"
-        "log"
-
-        "gopkg.in/yaml.v3"
-)
-
-var data = `
-a: Easy!
-b:
-  c: 2
-  d: [3, 4]
-`
-
-// Note: struct fields must be public in order for unmarshal to
-// correctly populate the data.
-type T struct {
-        A string
-        B struct {
-                RenamedC int   `yaml:"c"`
-                D        []int `yaml:",flow"`
-        }
-}
-
-func main() {
-        t := T{}
-    
-        err := yaml.Unmarshal([]byte(data), &t)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- t:\n%v\n\n", t)
-    
-        d, err := yaml.Marshal(&t)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- t dump:\n%s\n\n", string(d))
-    
-        m := make(map[interface{}]interface{})
-    
-        err = yaml.Unmarshal([]byte(data), &m)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- m:\n%v\n\n", m)
-    
-        d, err = yaml.Marshal(&m)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- m dump:\n%s\n\n", string(d))
-}
-```
-
-This example will generate the following output:
-
-```
---- t:
-{Easy! {2 [3 4]}}
-
---- t dump:
-a: Easy!
-b:
-  c: 2
-  d: [3, 4]
-
-
---- m:
-map[a:Easy! b:map[c:2 d:[3 4]]]
-
---- m dump:
-a: Easy!
-b:
-  c: 2
-  d:
-  - 3
-  - 4
-```
-

sesh/vendor/gopkg.in/yaml.v3/apic.go

@@ -1,747 +0,0 @@
-// 
-// Copyright (c) 2011-2019 Canonical Ltd
-// Copyright (c) 2006-2010 Kirill Simonov
-// 
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-// 
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-// 
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-package yaml
-
-import (
-	"io"
-)
-
-func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
-	//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
-
-	// Check if we can move the queue at the beginning of the buffer.
-	if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
-		if parser.tokens_head != len(parser.tokens) {
-			copy(parser.tokens, parser.tokens[parser.tokens_head:])
-		}
-		parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
-		parser.tokens_head = 0
-	}
-	parser.tokens = append(parser.tokens, *token)
-	if pos < 0 {
-		return
-	}
-	copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
-	parser.tokens[parser.tokens_head+pos] = *token
-}
-
-// Create a new parser object.
-func yaml_parser_initialize(parser *yaml_parser_t) bool {
-	*parser = yaml_parser_t{
-		raw_buffer: make([]byte, 0, input_raw_buffer_size),
-		buffer:     make([]byte, 0, input_buffer_size),
-	}
-	return true
-}
-
-// Destroy a parser object.
-func yaml_parser_delete(parser *yaml_parser_t) {
-	*parser = yaml_parser_t{}
-}
-
-// String read handler.
-func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
-	if parser.input_pos == len(parser.input) {
-		return 0, io.EOF
-	}
-	n = copy(buffer, parser.input[parser.input_pos:])
-	parser.input_pos += n
-	return n, nil
-}
-
-// Reader read handler.
-func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
-	return parser.input_reader.Read(buffer)
-}
-
-// Set a string input.
-func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
-	if parser.read_handler != nil {
-		panic("must set the input source only once")
-	}
-	parser.read_handler = yaml_string_read_handler
-	parser.input = input
-	parser.input_pos = 0
-}
-
-// Set a file input.
-func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) {
-	if parser.read_handler != nil {
-		panic("must set the input source only once")
-	}
-	parser.read_handler = yaml_reader_read_handler
-	parser.input_reader = r
-}
-
-// Set the source encoding.
-func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
-	if parser.encoding != yaml_ANY_ENCODING {
-		panic("must set the encoding only once")
-	}
-	parser.encoding = encoding
-}
-
-// Create a new emitter object.
-func yaml_emitter_initialize(emitter *yaml_emitter_t) {
-	*emitter = yaml_emitter_t{
-		buffer:     make([]byte, output_buffer_size),
-		raw_buffer: make([]byte, 0, output_raw_buffer_size),
-		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
-		events:     make([]yaml_event_t, 0, initial_queue_size),
-		best_width: -1,
-	}
-}
-
-// Destroy an emitter object.
-func yaml_emitter_delete(emitter *yaml_emitter_t) {
-	*emitter = yaml_emitter_t{}
-}
-
-// String write handler.
-func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
-	*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
-	return nil
-}
-
-// yaml_writer_write_handler uses emitter.output_writer to write the
-// emitted text.
-func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
-	_, err := emitter.output_writer.Write(buffer)
-	return err
-}
-
-// Set a string output.
-func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
-	if emitter.write_handler != nil {
-		panic("must set the output target only once")
-	}
-	emitter.write_handler = yaml_string_write_handler
-	emitter.output_buffer = output_buffer
-}
-
-// Set a file output.
-func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
-	if emitter.write_handler != nil {
-		panic("must set the output target only once")
-	}
-	emitter.write_handler = yaml_writer_write_handler
-	emitter.output_writer = w
-}
-
-// Set the output encoding.
-func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
-	if emitter.encoding != yaml_ANY_ENCODING {
-		panic("must set the output encoding only once")
-	}
-	emitter.encoding = encoding
-}
-
-// Set the canonical output style.
-func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
-	emitter.canonical = canonical
-}
-
-// Set the indentation increment.
-func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
-	if indent < 2 || indent > 9 {
-		indent = 2
-	}
-	emitter.best_indent = indent
-}
-
-// Set the preferred line width.
-func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
-	if width < 0 {
-		width = -1
-	}
-	emitter.best_width = width
-}
-
-// Set if unescaped non-ASCII characters are allowed.
-func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
-	emitter.unicode = unicode
-}
-
-// Set the preferred line break character.
-func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
-	emitter.line_break = line_break
-}
-
-///*
-// * Destroy a token object.
-// */
-//
-//YAML_DECLARE(void)
-//yaml_token_delete(yaml_token_t *token)
-//{
-//    assert(token);  // Non-NULL token object expected.
-//
-//    switch (token.type)
-//    {
-//        case YAML_TAG_DIRECTIVE_TOKEN:
-//            yaml_free(token.data.tag_directive.handle);
-//            yaml_free(token.data.tag_directive.prefix);
-//            break;
-//
-//        case YAML_ALIAS_TOKEN:
-//            yaml_free(token.data.alias.value);
-//            break;
-//
-//        case YAML_ANCHOR_TOKEN:
-//            yaml_free(token.data.anchor.value);
-//            break;
-//
-//        case YAML_TAG_TOKEN:
-//            yaml_free(token.data.tag.handle);
-//            yaml_free(token.data.tag.suffix);
-//            break;
-//
-//        case YAML_SCALAR_TOKEN:
-//            yaml_free(token.data.scalar.value);
-//            break;
-//
-//        default:
-//            break;
-//    }
-//
-//    memset(token, 0, sizeof(yaml_token_t));
-//}
-//
-///*
-// * Check if a string is a valid UTF-8 sequence.
-// *
-// * Check 'reader.c' for more details on UTF-8 encoding.
-// */
-//
-//static int
-//yaml_check_utf8(yaml_char_t *start, size_t length)
-//{
-//    yaml_char_t *end = start+length;
-//    yaml_char_t *pointer = start;
-//
-//    while (pointer < end) {
-//        unsigned char octet;
-//        unsigned int width;
-//        unsigned int value;
-//        size_t k;
-//
-//        octet = pointer[0];
-//        width = (octet & 0x80) == 0x00 ? 1 :
-//                (octet & 0xE0) == 0xC0 ? 2 :
-//                (octet & 0xF0) == 0xE0 ? 3 :
-//                (octet & 0xF8) == 0xF0 ? 4 : 0;
-//        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
-//                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
-//                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
-//                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
-//        if (!width) return 0;
-//        if (pointer+width > end) return 0;
-//        for (k = 1; k < width; k ++) {
-//            octet = pointer[k];
-//            if ((octet & 0xC0) != 0x80) return 0;
-//            value = (value << 6) + (octet & 0x3F);
-//        }
-//        if (!((width == 1) ||
-//            (width == 2 && value >= 0x80) ||
-//            (width == 3 && value >= 0x800) ||
-//            (width == 4 && value >= 0x10000))) return 0;
-//
-//        pointer += width;
-//    }
-//
-//    return 1;
-//}
-//
-
-// Create STREAM-START.
-func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
-	*event = yaml_event_t{
-		typ:      yaml_STREAM_START_EVENT,
-		encoding: encoding,
-	}
-}
-
-// Create STREAM-END.
-func yaml_stream_end_event_initialize(event *yaml_event_t) {
-	*event = yaml_event_t{
-		typ: yaml_STREAM_END_EVENT,
-	}
-}
-
-// Create DOCUMENT-START.
-func yaml_document_start_event_initialize(
-	event *yaml_event_t,
-	version_directive *yaml_version_directive_t,
-	tag_directives []yaml_tag_directive_t,
-	implicit bool,
-) {
-	*event = yaml_event_t{
-		typ:               yaml_DOCUMENT_START_EVENT,
-		version_directive: version_directive,
-		tag_directives:    tag_directives,
-		implicit:          implicit,
-	}
-}
-
-// Create DOCUMENT-END.
-func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
-	*event = yaml_event_t{
-		typ:      yaml_DOCUMENT_END_EVENT,
-		implicit: implicit,
-	}
-}
-
-// Create ALIAS.
-func yaml_alias_event_initialize(event *yaml_event_t, anchor []byte) bool {
-	*event = yaml_event_t{
-		typ:    yaml_ALIAS_EVENT,
-		anchor: anchor,
-	}
-	return true
-}
-
-// Create SCALAR.
-func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
-	*event = yaml_event_t{
-		typ:             yaml_SCALAR_EVENT,
-		anchor:          anchor,
-		tag:             tag,
-		value:           value,
-		implicit:        plain_implicit,
-		quoted_implicit: quoted_implicit,
-		style:           yaml_style_t(style),
-	}
-	return true
-}
-
-// Create SEQUENCE-START.
-func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
-	*event = yaml_event_t{
-		typ:      yaml_SEQUENCE_START_EVENT,
-		anchor:   anchor,
-		tag:      tag,
-		implicit: implicit,
-		style:    yaml_style_t(style),
-	}
-	return true
-}
-
-// Create SEQUENCE-END.
-func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
-	*event = yaml_event_t{
-		typ: yaml_SEQUENCE_END_EVENT,
-	}
-	return true
-}
-
-// Create MAPPING-START.
-func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) {
-	*event = yaml_event_t{
-		typ:      yaml_MAPPING_START_EVENT,
-		anchor:   anchor,
-		tag:      tag,
-		implicit: implicit,
-		style:    yaml_style_t(style),
-	}
-}
-
-// Create MAPPING-END.
-func yaml_mapping_end_event_initialize(event *yaml_event_t) {
-	*event = yaml_event_t{
-		typ: yaml_MAPPING_END_EVENT,
-	}
-}
-
-// Destroy an event object.
-func yaml_event_delete(event *yaml_event_t) {
-	*event = yaml_event_t{}
-}
-
-///*
-// * Create a document object.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_initialize(document *yaml_document_t,
-//        version_directive *yaml_version_directive_t,
-//        tag_directives_start *yaml_tag_directive_t,
-//        tag_directives_end *yaml_tag_directive_t,
-//        start_implicit int, end_implicit int)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    struct {
-//        start *yaml_node_t
-//        end *yaml_node_t
-//        top *yaml_node_t
-//    } nodes = { NULL, NULL, NULL }
-//    version_directive_copy *yaml_version_directive_t = NULL
-//    struct {
-//        start *yaml_tag_directive_t
-//        end *yaml_tag_directive_t
-//        top *yaml_tag_directive_t
-//    } tag_directives_copy = { NULL, NULL, NULL }
-//    value yaml_tag_directive_t = { NULL, NULL }
-//    mark yaml_mark_t = { 0, 0, 0 }
-//
-//    assert(document) // Non-NULL document object is expected.
-//    assert((tag_directives_start && tag_directives_end) ||
-//            (tag_directives_start == tag_directives_end))
-//                            // Valid tag directives are expected.
-//
-//    if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
-//
-//    if (version_directive) {
-//        version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
-//        if (!version_directive_copy) goto error
-//        version_directive_copy.major = version_directive.major
-//        version_directive_copy.minor = version_directive.minor
-//    }
-//
-//    if (tag_directives_start != tag_directives_end) {
-//        tag_directive *yaml_tag_directive_t
-//        if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
-//            goto error
-//        for (tag_directive = tag_directives_start
-//                tag_directive != tag_directives_end; tag_directive ++) {
-//            assert(tag_directive.handle)
-//            assert(tag_directive.prefix)
-//            if (!yaml_check_utf8(tag_directive.handle,
-//                        strlen((char *)tag_directive.handle)))
-//                goto error
-//            if (!yaml_check_utf8(tag_directive.prefix,
-//                        strlen((char *)tag_directive.prefix)))
-//                goto error
-//            value.handle = yaml_strdup(tag_directive.handle)
-//            value.prefix = yaml_strdup(tag_directive.prefix)
-//            if (!value.handle || !value.prefix) goto error
-//            if (!PUSH(&context, tag_directives_copy, value))
-//                goto error
-//            value.handle = NULL
-//            value.prefix = NULL
-//        }
-//    }
-//
-//    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
-//            tag_directives_copy.start, tag_directives_copy.top,
-//            start_implicit, end_implicit, mark, mark)
-//
-//    return 1
-//
-//error:
-//    STACK_DEL(&context, nodes)
-//    yaml_free(version_directive_copy)
-//    while (!STACK_EMPTY(&context, tag_directives_copy)) {
-//        value yaml_tag_directive_t = POP(&context, tag_directives_copy)
-//        yaml_free(value.handle)
-//        yaml_free(value.prefix)
-//    }
-//    STACK_DEL(&context, tag_directives_copy)
-//    yaml_free(value.handle)
-//    yaml_free(value.prefix)
-//
-//    return 0
-//}
-//
-///*
-// * Destroy a document object.
-// */
-//
-//YAML_DECLARE(void)
-//yaml_document_delete(document *yaml_document_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    tag_directive *yaml_tag_directive_t
-//
-//    context.error = YAML_NO_ERROR // Eliminate a compiler warning.
-//
-//    assert(document) // Non-NULL document object is expected.
-//
-//    while (!STACK_EMPTY(&context, document.nodes)) {
-//        node yaml_node_t = POP(&context, document.nodes)
-//        yaml_free(node.tag)
-//        switch (node.type) {
-//            case YAML_SCALAR_NODE:
-//                yaml_free(node.data.scalar.value)
-//                break
-//            case YAML_SEQUENCE_NODE:
-//                STACK_DEL(&context, node.data.sequence.items)
-//                break
-//            case YAML_MAPPING_NODE:
-//                STACK_DEL(&context, node.data.mapping.pairs)
-//                break
-//            default:
-//                assert(0) // Should not happen.
-//        }
-//    }
-//    STACK_DEL(&context, document.nodes)
-//
-//    yaml_free(document.version_directive)
-//    for (tag_directive = document.tag_directives.start
-//            tag_directive != document.tag_directives.end
-//            tag_directive++) {
-//        yaml_free(tag_directive.handle)
-//        yaml_free(tag_directive.prefix)
-//    }
-//    yaml_free(document.tag_directives.start)
-//
-//    memset(document, 0, sizeof(yaml_document_t))
-//}
-//
-///**
-// * Get a document node.
-// */
-//
-//YAML_DECLARE(yaml_node_t *)
-//yaml_document_get_node(document *yaml_document_t, index int)
-//{
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (index > 0 && document.nodes.start + index <= document.nodes.top) {
-//        return document.nodes.start + index - 1
-//    }
-//    return NULL
-//}
-//
-///**
-// * Get the root object.
-// */
-//
-//YAML_DECLARE(yaml_node_t *)
-//yaml_document_get_root_node(document *yaml_document_t)
-//{
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (document.nodes.top != document.nodes.start) {
-//        return document.nodes.start
-//    }
-//    return NULL
-//}
-//
-///*
-// * Add a scalar node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_scalar(document *yaml_document_t,
-//        tag *yaml_char_t, value *yaml_char_t, length int,
-//        style yaml_scalar_style_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    mark yaml_mark_t = { 0, 0, 0 }
-//    tag_copy *yaml_char_t = NULL
-//    value_copy *yaml_char_t = NULL
-//    node yaml_node_t
-//
-//    assert(document) // Non-NULL document object is expected.
-//    assert(value) // Non-NULL value is expected.
-//
-//    if (!tag) {
-//        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
-//    }
-//
-//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-//    tag_copy = yaml_strdup(tag)
-//    if (!tag_copy) goto error
-//
-//    if (length < 0) {
-//        length = strlen((char *)value)
-//    }
-//
-//    if (!yaml_check_utf8(value, length)) goto error
-//    value_copy = yaml_malloc(length+1)
-//    if (!value_copy) goto error
-//    memcpy(value_copy, value, length)
-//    value_copy[length] = '\0'
-//
-//    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
-//    if (!PUSH(&context, document.nodes, node)) goto error
-//
-//    return document.nodes.top - document.nodes.start
-//
-//error:
-//    yaml_free(tag_copy)
-//    yaml_free(value_copy)
-//
-//    return 0
-//}
-//
-///*
-// * Add a sequence node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_sequence(document *yaml_document_t,
-//        tag *yaml_char_t, style yaml_sequence_style_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    mark yaml_mark_t = { 0, 0, 0 }
-//    tag_copy *yaml_char_t = NULL
-//    struct {
-//        start *yaml_node_item_t
-//        end *yaml_node_item_t
-//        top *yaml_node_item_t
-//    } items = { NULL, NULL, NULL }
-//    node yaml_node_t
-//
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (!tag) {
-//        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
-//    }
-//
-//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-//    tag_copy = yaml_strdup(tag)
-//    if (!tag_copy) goto error
-//
-//    if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
-//
-//    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
-//            style, mark, mark)
-//    if (!PUSH(&context, document.nodes, node)) goto error
-//
-//    return document.nodes.top - document.nodes.start
-//
-//error:
-//    STACK_DEL(&context, items)
-//    yaml_free(tag_copy)
-//
-//    return 0
-//}
-//
-///*
-// * Add a mapping node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_mapping(document *yaml_document_t,
-//        tag *yaml_char_t, style yaml_mapping_style_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    mark yaml_mark_t = { 0, 0, 0 }
-//    tag_copy *yaml_char_t = NULL
-//    struct {
-//        start *yaml_node_pair_t
-//        end *yaml_node_pair_t
-//        top *yaml_node_pair_t
-//    } pairs = { NULL, NULL, NULL }
-//    node yaml_node_t
-//
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (!tag) {
-//        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
-//    }
-//
-//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-//    tag_copy = yaml_strdup(tag)
-//    if (!tag_copy) goto error
-//
-//    if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
-//
-//    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
-//            style, mark, mark)
-//    if (!PUSH(&context, document.nodes, node)) goto error
-//
-//    return document.nodes.top - document.nodes.start
-//
-//error:
-//    STACK_DEL(&context, pairs)
-//    yaml_free(tag_copy)
-//
-//    return 0
-//}
-//
-///*
-// * Append an item to a sequence node.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_append_sequence_item(document *yaml_document_t,
-//        sequence int, item int)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//
-//    assert(document) // Non-NULL document is required.
-//    assert(sequence > 0
-//            && document.nodes.start + sequence <= document.nodes.top)
-//                            // Valid sequence id is required.
-//    assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
-//                            // A sequence node is required.
-//    assert(item > 0 && document.nodes.start + item <= document.nodes.top)
-//                            // Valid item id is required.
-//
-//    if (!PUSH(&context,
-//                document.nodes.start[sequence-1].data.sequence.items, item))
-//        return 0
-//
-//    return 1
-//}
-//
-///*
-// * Append a pair of a key and a value to a mapping node.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_append_mapping_pair(document *yaml_document_t,
-//        mapping int, key int, value int)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//
-//    pair yaml_node_pair_t
-//
-//    assert(document) // Non-NULL document is required.
-//    assert(mapping > 0
-//            && document.nodes.start + mapping <= document.nodes.top)
-//                            // Valid mapping id is required.
-//    assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
-//                            // A mapping node is required.
-//    assert(key > 0 && document.nodes.start + key <= document.nodes.top)
-//                            // Valid key id is required.
-//    assert(value > 0 && document.nodes.start + value <= document.nodes.top)
-//                            // Valid value id is required.
-//
-//    pair.key = key
-//    pair.value = value
-//
-//    if (!PUSH(&context,
-//                document.nodes.start[mapping-1].data.mapping.pairs, pair))
-//        return 0
-//
-//    return 1
-//}
-//
-//

sesh/vendor/gopkg.in/yaml.v3/encode.go

@@ -1,577 +0,0 @@
-//
-// Copyright (c) 2011-2019 Canonical Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package yaml
-
-import (
-	"encoding"
-	"fmt"
-	"io"
-	"reflect"
-	"regexp"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-	"unicode/utf8"
-)
-
-type encoder struct {
-	emitter  yaml_emitter_t
-	event    yaml_event_t
-	out      []byte
-	flow     bool
-	indent   int
-	doneInit bool
-}
-
-func newEncoder() *encoder {
-	e := &encoder{}
-	yaml_emitter_initialize(&e.emitter)
-	yaml_emitter_set_output_string(&e.emitter, &e.out)
-	yaml_emitter_set_unicode(&e.emitter, true)
-	return e
-}
-
-func newEncoderWithWriter(w io.Writer) *encoder {
-	e := &encoder{}
-	yaml_emitter_initialize(&e.emitter)
-	yaml_emitter_set_output_writer(&e.emitter, w)
-	yaml_emitter_set_unicode(&e.emitter, true)
-	return e
-}
-
-func (e *encoder) init() {
-	if e.doneInit {
-		return
-	}
-	if e.indent == 0 {
-		e.indent = 4
-	}
-	e.emitter.best_indent = e.indent
-	yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING)
-	e.emit()
-	e.doneInit = true
-}
-
-func (e *encoder) finish() {
-	e.emitter.open_ended = false
-	yaml_stream_end_event_initialize(&e.event)
-	e.emit()
-}
-
-func (e *encoder) destroy() {
-	yaml_emitter_delete(&e.emitter)
-}
-
-func (e *encoder) emit() {
-	// This will internally delete the e.event value.
-	e.must(yaml_emitter_emit(&e.emitter, &e.event))
-}
-
-func (e *encoder) must(ok bool) {
-	if !ok {
-		msg := e.emitter.problem
-		if msg == "" {
-			msg = "unknown problem generating YAML content"
-		}
-		failf("%s", msg)
-	}
-}
-
-func (e *encoder) marshalDoc(tag string, in reflect.Value) {
-	e.init()
-	var node *Node
-	if in.IsValid() {
-		node, _ = in.Interface().(*Node)
-	}
-	if node != nil && node.Kind == DocumentNode {
-		e.nodev(in)
-	} else {
-		yaml_document_start_event_initialize(&e.event, nil, nil, true)
-		e.emit()
-		e.marshal(tag, in)
-		yaml_document_end_event_initialize(&e.event, true)
-		e.emit()
-	}
-}
-
-func (e *encoder) marshal(tag string, in reflect.Value) {
-	tag = shortTag(tag)
-	if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() {
-		e.nilv()
-		return
-	}
-	iface := in.Interface()
-	switch value := iface.(type) {
-	case *Node:
-		e.nodev(in)
-		return
-	case Node:
-		if !in.CanAddr() {
-			var n = reflect.New(in.Type()).Elem()
-			n.Set(in)
-			in = n
-		}
-		e.nodev(in.Addr())
-		return
-	case time.Time:
-		e.timev(tag, in)
-		return
-	case *time.Time:
-		e.timev(tag, in.Elem())
-		return
-	case time.Duration:
-		e.stringv(tag, reflect.ValueOf(value.String()))
-		return
-	case Marshaler:
-		v, err := value.MarshalYAML()
-		if err != nil {
-			fail(err)
-		}
-		if v == nil {
-			e.nilv()
-			return
-		}
-		e.marshal(tag, reflect.ValueOf(v))
-		return
-	case encoding.TextMarshaler:
-		text, err := value.MarshalText()
-		if err != nil {
-			fail(err)
-		}
-		in = reflect.ValueOf(string(text))
-	case nil:
-		e.nilv()
-		return
-	}
-	switch in.Kind() {
-	case reflect.Interface:
-		e.marshal(tag, in.Elem())
-	case reflect.Map:
-		e.mapv(tag, in)
-	case reflect.Ptr:
-		e.marshal(tag, in.Elem())
-	case reflect.Struct:
-		e.structv(tag, in)
-	case reflect.Slice, reflect.Array:
-		e.slicev(tag, in)
-	case reflect.String:
-		e.stringv(tag, in)
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		e.intv(tag, in)
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		e.uintv(tag, in)
-	case reflect.Float32, reflect.Float64:
-		e.floatv(tag, in)
-	case reflect.Bool:
-		e.boolv(tag, in)
-	default:
-		panic("cannot marshal type: " + in.Type().String())
-	}
-}
-
-func (e *encoder) mapv(tag string, in reflect.Value) {
-	e.mappingv(tag, func() {
-		keys := keyList(in.MapKeys())
-		sort.Sort(keys)
-		for _, k := range keys {
-			e.marshal("", k)
-			e.marshal("", in.MapIndex(k))
-		}
-	})
-}
-
-func (e *encoder) fieldByIndex(v reflect.Value, index []int) (field reflect.Value) {
-	for _, num := range index {
-		for {
-			if v.Kind() == reflect.Ptr {
-				if v.IsNil() {
-					return reflect.Value{}
-				}
-				v = v.Elem()
-				continue
-			}
-			break
-		}
-		v = v.Field(num)
-	}
-	return v
-}
-
-func (e *encoder) structv(tag string, in reflect.Value) {
-	sinfo, err := getStructInfo(in.Type())
-	if err != nil {
-		panic(err)
-	}
-	e.mappingv(tag, func() {
-		for _, info := range sinfo.FieldsList {
-			var value reflect.Value
-			if info.Inline == nil {
-				value = in.Field(info.Num)
-			} else {
-				value = e.fieldByIndex(in, info.Inline)
-				if !value.IsValid() {
-					continue
-				}
-			}
-			if info.OmitEmpty && isZero(value) {
-				continue
-			}
-			e.marshal("", reflect.ValueOf(info.Key))
-			e.flow = info.Flow
-			e.marshal("", value)
-		}
-		if sinfo.InlineMap >= 0 {
-			m := in.Field(sinfo.InlineMap)
-			if m.Len() > 0 {
-				e.flow = false
-				keys := keyList(m.MapKeys())
-				sort.Sort(keys)
-				for _, k := range keys {
-					if _, found := sinfo.FieldsMap[k.String()]; found {
-						panic(fmt.Sprintf("cannot have key %q in inlined map: conflicts with struct field", k.String()))
-					}
-					e.marshal("", k)
-					e.flow = false
-					e.marshal("", m.MapIndex(k))
-				}
-			}
-		}
-	})
-}
-
-func (e *encoder) mappingv(tag string, f func()) {
-	implicit := tag == ""
-	style := yaml_BLOCK_MAPPING_STYLE
-	if e.flow {
-		e.flow = false
-		style = yaml_FLOW_MAPPING_STYLE
-	}
-	yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
-	e.emit()
-	f()
-	yaml_mapping_end_event_initialize(&e.event)
-	e.emit()
-}
-
-func (e *encoder) slicev(tag string, in reflect.Value) {
-	implicit := tag == ""
-	style := yaml_BLOCK_SEQUENCE_STYLE
-	if e.flow {
-		e.flow = false
-		style = yaml_FLOW_SEQUENCE_STYLE
-	}
-	e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
-	e.emit()
-	n := in.Len()
-	for i := 0; i < n; i++ {
-		e.marshal("", in.Index(i))
-	}
-	e.must(yaml_sequence_end_event_initialize(&e.event))
-	e.emit()
-}
-
-// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
-//
-// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
-// in YAML 1.2 and by this package, but these should be marshalled quoted for
-// the time being for compatibility with other parsers.
-func isBase60Float(s string) (result bool) {
-	// Fast path.
-	if s == "" {
-		return false
-	}
-	c := s[0]
-	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
-		return false
-	}
-	// Do the full match.
-	return base60float.MatchString(s)
-}
-
-// From http://yaml.org/type/float.html, except the regular expression there
-// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
-var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
-
-// isOldBool returns whether s is bool notation as defined in YAML 1.1.
-//
-// We continue to force strings that YAML 1.1 would interpret as booleans to be
-// rendered as quotes strings so that the marshalled output valid for YAML 1.1
-// parsing.
-func isOldBool(s string) (result bool) {
-	switch s {
-	case "y", "Y", "yes", "Yes", "YES", "on", "On", "ON",
-		"n", "N", "no", "No", "NO", "off", "Off", "OFF":
-		return true
-	default:
-		return false
-	}
-}
-
-func (e *encoder) stringv(tag string, in reflect.Value) {
-	var style yaml_scalar_style_t
-	s := in.String()
-	canUsePlain := true
-	switch {
-	case !utf8.ValidString(s):
-		if tag == binaryTag {
-			failf("explicitly tagged !!binary data must be base64-encoded")
-		}
-		if tag != "" {
-			failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
-		}
-		// It can't be encoded directly as YAML so use a binary tag
-		// and encode it as base64.
-		tag = binaryTag
-		s = encodeBase64(s)
-	case tag == "":
-		// Check to see if it would resolve to a specific
-		// tag when encoded unquoted. If it doesn't,
-		// there's no need to quote it.
-		rtag, _ := resolve("", s)
-		canUsePlain = rtag == strTag && !(isBase60Float(s) || isOldBool(s))
-	}
-	// Note: it's possible for user code to emit invalid YAML
-	// if they explicitly specify a tag and a string containing
-	// text that's incompatible with that tag.
-	switch {
-	case strings.Contains(s, "\n"):
-		if e.flow {
-			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-		} else {
-			style = yaml_LITERAL_SCALAR_STYLE
-		}
-	case canUsePlain:
-		style = yaml_PLAIN_SCALAR_STYLE
-	default:
-		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-	}
-	e.emitScalar(s, "", tag, style, nil, nil, nil, nil)
-}
-
-func (e *encoder) boolv(tag string, in reflect.Value) {
-	var s string
-	if in.Bool() {
-		s = "true"
-	} else {
-		s = "false"
-	}
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE, nil, nil, nil, nil)
-}
-
-func (e *encoder) intv(tag string, in reflect.Value) {
-	s := strconv.FormatInt(in.Int(), 10)
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE, nil, nil, nil, nil)
-}
-
-func (e *encoder) uintv(tag string, in reflect.Value) {
-	s := strconv.FormatUint(in.Uint(), 10)
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE, nil, nil, nil, nil)
-}
-
-func (e *encoder) timev(tag string, in reflect.Value) {
-	t := in.Interface().(time.Time)
-	s := t.Format(time.RFC3339Nano)
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE, nil, nil, nil, nil)
-}
-
-func (e *encoder) floatv(tag string, in reflect.Value) {
-	// Issue #352: When formatting, use the precision of the underlying value
-	precision := 64
-	if in.Kind() == reflect.Float32 {
-		precision = 32
-	}
-
-	s := strconv.FormatFloat(in.Float(), 'g', -1, precision)
-	switch s {
-	case "+Inf":
-		s = ".inf"
-	case "-Inf":
-		s = "-.inf"
-	case "NaN":
-		s = ".nan"
-	}
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE, nil, nil, nil, nil)
-}
-
-func (e *encoder) nilv() {
-	e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE, nil, nil, nil, nil)
-}
-
-func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t, head, line, foot, tail []byte) {
-	// TODO Kill this function. Replace all initialize calls by their underlining Go literals.
-	implicit := tag == ""
-	if !implicit {
-		tag = longTag(tag)
-	}
-	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
-	e.event.head_comment = head
-	e.event.line_comment = line
-	e.event.foot_comment = foot
-	e.event.tail_comment = tail
-	e.emit()
-}
-
-func (e *encoder) nodev(in reflect.Value) {
-	e.node(in.Interface().(*Node), "")
-}
-
-func (e *encoder) node(node *Node, tail string) {
-	// Zero nodes behave as nil.
-	if node.Kind == 0 && node.IsZero() {
-		e.nilv()
-		return
-	}
-
-	// If the tag was not explicitly requested, and dropping it won't change the
-	// implicit tag of the value, don't include it in the presentation.
-	var tag = node.Tag
-	var stag = shortTag(tag)
-	var forceQuoting bool
-	if tag != "" && node.Style&TaggedStyle == 0 {
-		if node.Kind == ScalarNode {
-			if stag == strTag && node.Style&(SingleQuotedStyle|DoubleQuotedStyle|LiteralStyle|FoldedStyle) != 0 {
-				tag = ""
-			} else {
-				rtag, _ := resolve("", node.Value)
-				if rtag == stag {
-					tag = ""
-				} else if stag == strTag {
-					tag = ""
-					forceQuoting = true
-				}
-			}
-		} else {
-			var rtag string
-			switch node.Kind {
-			case MappingNode:
-				rtag = mapTag
-			case SequenceNode:
-				rtag = seqTag
-			}
-			if rtag == stag {
-				tag = ""
-			}
-		}
-	}
-
-	switch node.Kind {
-	case DocumentNode:
-		yaml_document_start_event_initialize(&e.event, nil, nil, true)
-		e.event.head_comment = []byte(node.HeadComment)
-		e.emit()
-		for _, node := range node.Content {
-			e.node(node, "")
-		}
-		yaml_document_end_event_initialize(&e.event, true)
-		e.event.foot_comment = []byte(node.FootComment)
-		e.emit()
-
-	case SequenceNode:
-		style := yaml_BLOCK_SEQUENCE_STYLE
-		if node.Style&FlowStyle != 0 {
-			style = yaml_FLOW_SEQUENCE_STYLE
-		}
-		e.must(yaml_sequence_start_event_initialize(&e.event, []byte(node.Anchor), []byte(longTag(tag)), tag == "", style))
-		e.event.head_comment = []byte(node.HeadComment)
-		e.emit()
-		for _, node := range node.Content {
-			e.node(node, "")
-		}
-		e.must(yaml_sequence_end_event_initialize(&e.event))
-		e.event.line_comment = []byte(node.LineComment)
-		e.event.foot_comment = []byte(node.FootComment)
-		e.emit()
-
-	case MappingNode:
-		style := yaml_BLOCK_MAPPING_STYLE
-		if node.Style&FlowStyle != 0 {
-			style = yaml_FLOW_MAPPING_STYLE
-		}
-		yaml_mapping_start_event_initialize(&e.event, []byte(node.Anchor), []byte(longTag(tag)), tag == "", style)
-		e.event.tail_comment = []byte(tail)
-		e.event.head_comment = []byte(node.HeadComment)
-		e.emit()
-
-		// The tail logic below moves the foot comment of prior keys to the following key,
-		// since the value for each key may be a nested structure and the foot needs to be
-		// processed only the entirety of the value is streamed. The last tail is processed
-		// with the mapping end event.
-		var tail string
-		for i := 0; i+1 < len(node.Content); i += 2 {
-			k := node.Content[i]
-			foot := k.FootComment
-			if foot != "" {
-				kopy := *k
-				kopy.FootComment = ""
-				k = &kopy
-			}
-			e.node(k, tail)
-			tail = foot
-
-			v := node.Content[i+1]
-			e.node(v, "")
-		}
-
-		yaml_mapping_end_event_initialize(&e.event)
-		e.event.tail_comment = []byte(tail)
-		e.event.line_comment = []byte(node.LineComment)
-		e.event.foot_comment = []byte(node.FootComment)
-		e.emit()
-
-	case AliasNode:
-		yaml_alias_event_initialize(&e.event, []byte(node.Value))
-		e.event.head_comment = []byte(node.HeadComment)
-		e.event.line_comment = []byte(node.LineComment)
-		e.event.foot_comment = []byte(node.FootComment)
-		e.emit()
-
-	case ScalarNode:
-		value := node.Value
-		if !utf8.ValidString(value) {
-			if stag == binaryTag {
-				failf("explicitly tagged !!binary data must be base64-encoded")
-			}
-			if stag != "" {
-				failf("cannot marshal invalid UTF-8 data as %s", stag)
-			}
-			// It can't be encoded directly as YAML so use a binary tag
-			// and encode it as base64.
-			tag = binaryTag
-			value = encodeBase64(value)
-		}
-
-		style := yaml_PLAIN_SCALAR_STYLE
-		switch {
-		case node.Style&DoubleQuotedStyle != 0:
-			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-		case node.Style&SingleQuotedStyle != 0:
-			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
-		case node.Style&LiteralStyle != 0:
-			style = yaml_LITERAL_SCALAR_STYLE
-		case node.Style&FoldedStyle != 0:
-			style = yaml_FOLDED_SCALAR_STYLE
-		case strings.Contains(value, "\n"):
-			style = yaml_LITERAL_SCALAR_STYLE
-		case forceQuoting:
-			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-		}
-
-		e.emitScalar(value, node.Anchor, tag, style, []byte(node.HeadComment), []byte(node.LineComment), []byte(node.FootComment), []byte(tail))
-	default:
-		failf("cannot encode node with unknown kind %d", node.Kind)
-	}
-}

sesh/vendor/gopkg.in/yaml.v3/readerc.go

@@ -1,434 +0,0 @@
-// 
-// Copyright (c) 2011-2019 Canonical Ltd
-// Copyright (c) 2006-2010 Kirill Simonov
-// 
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-// 
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-// 
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-package yaml
-
-import (
-	"io"
-)
-
-// Set the reader error and return 0.
-func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
-	parser.error = yaml_READER_ERROR
-	parser.problem = problem
-	parser.problem_offset = offset
-	parser.problem_value = value
-	return false
-}
-
-// Byte order marks.
-const (
-	bom_UTF8    = "\xef\xbb\xbf"
-	bom_UTF16LE = "\xff\xfe"
-	bom_UTF16BE = "\xfe\xff"
-)
-
-// Determine the input stream encoding by checking the BOM symbol. If no BOM is
-// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
-func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
-	// Ensure that we had enough bytes in the raw buffer.
-	for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
-		if !yaml_parser_update_raw_buffer(parser) {
-			return false
-		}
-	}
-
-	// Determine the encoding.
-	buf := parser.raw_buffer
-	pos := parser.raw_buffer_pos
-	avail := len(buf) - pos
-	if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
-		parser.encoding = yaml_UTF16LE_ENCODING
-		parser.raw_buffer_pos += 2
-		parser.offset += 2
-	} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
-		parser.encoding = yaml_UTF16BE_ENCODING
-		parser.raw_buffer_pos += 2
-		parser.offset += 2
-	} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
-		parser.encoding = yaml_UTF8_ENCODING
-		parser.raw_buffer_pos += 3
-		parser.offset += 3
-	} else {
-		parser.encoding = yaml_UTF8_ENCODING
-	}
-	return true
-}
-
-// Update the raw buffer.
-func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
-	size_read := 0
-
-	// Return if the raw buffer is full.
-	if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
-		return true
-	}
-
-	// Return on EOF.
-	if parser.eof {
-		return true
-	}
-
-	// Move the remaining bytes in the raw buffer to the beginning.
-	if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
-		copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
-	}
-	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
-	parser.raw_buffer_pos = 0
-
-	// Call the read handler to fill the buffer.
-	size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
-	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
-	if err == io.EOF {
-		parser.eof = true
-	} else if err != nil {
-		return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
-	}
-	return true
-}
-
-// Ensure that the buffer contains at least `length` characters.
-// Return true on success, false on failure.
-//
-// The length is supposed to be significantly less that the buffer size.
-func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
-	if parser.read_handler == nil {
-		panic("read handler must be set")
-	}
-
-	// [Go] This function was changed to guarantee the requested length size at EOF.
-	// The fact we need to do this is pretty awful, but the description above implies
-	// for that to be the case, and there are tests
-
-	// If the EOF flag is set and the raw buffer is empty, do nothing.
-	if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
-		// [Go] ACTUALLY! Read the documentation of this function above.
-		// This is just broken. To return true, we need to have the
-		// given length in the buffer. Not doing that means every single
-		// check that calls this function to make sure the buffer has a
-		// given length is Go) panicking; or C) accessing invalid memory.
-		//return true
-	}
-
-	// Return if the buffer contains enough characters.
-	if parser.unread >= length {
-		return true
-	}
-
-	// Determine the input encoding if it is not known yet.
-	if parser.encoding == yaml_ANY_ENCODING {
-		if !yaml_parser_determine_encoding(parser) {
-			return false
-		}
-	}
-
-	// Move the unread characters to the beginning of the buffer.
-	buffer_len := len(parser.buffer)
-	if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
-		copy(parser.buffer, parser.buffer[parser.buffer_pos:])
-		buffer_len -= parser.buffer_pos
-		parser.buffer_pos = 0
-	} else if parser.buffer_pos == buffer_len {
-		buffer_len = 0
-		parser.buffer_pos = 0
-	}
-
-	// Open the whole buffer for writing, and cut it before returning.
-	parser.buffer = parser.buffer[:cap(parser.buffer)]
-
-	// Fill the buffer until it has enough characters.
-	first := true
-	for parser.unread < length {
-
-		// Fill the raw buffer if necessary.
-		if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
-			if !yaml_parser_update_raw_buffer(parser) {
-				parser.buffer = parser.buffer[:buffer_len]
-				return false
-			}
-		}
-		first = false
-
-		// Decode the raw buffer.
-	inner:
-		for parser.raw_buffer_pos != len(parser.raw_buffer) {
-			var value rune
-			var width int
-
-			raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
-
-			// Decode the next character.
-			switch parser.encoding {
-			case yaml_UTF8_ENCODING:
-				// Decode a UTF-8 character.  Check RFC 3629
-				// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
-				//
-				// The following table (taken from the RFC) is used for
-				// decoding.
-				//
-				//    Char. number range |        UTF-8 octet sequence
-				//      (hexadecimal)    |              (binary)
-				//   --------------------+------------------------------------
-				//   0000 0000-0000 007F | 0xxxxxxx
-				//   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
-				//   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
-				//   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
-				//
-				// Additionally, the characters in the range 0xD800-0xDFFF
-				// are prohibited as they are reserved for use with UTF-16
-				// surrogate pairs.
-
-				// Determine the length of the UTF-8 sequence.
-				octet := parser.raw_buffer[parser.raw_buffer_pos]
-				switch {
-				case octet&0x80 == 0x00:
-					width = 1
-				case octet&0xE0 == 0xC0:
-					width = 2
-				case octet&0xF0 == 0xE0:
-					width = 3
-				case octet&0xF8 == 0xF0:
-					width = 4
-				default:
-					// The leading octet is invalid.
-					return yaml_parser_set_reader_error(parser,
-						"invalid leading UTF-8 octet",
-						parser.offset, int(octet))
-				}
-
-				// Check if the raw buffer contains an incomplete character.
-				if width > raw_unread {
-					if parser.eof {
-						return yaml_parser_set_reader_error(parser,
-							"incomplete UTF-8 octet sequence",
-							parser.offset, -1)
-					}
-					break inner
-				}
-
-				// Decode the leading octet.
-				switch {
-				case octet&0x80 == 0x00:
-					value = rune(octet & 0x7F)
-				case octet&0xE0 == 0xC0:
-					value = rune(octet & 0x1F)
-				case octet&0xF0 == 0xE0:
-					value = rune(octet & 0x0F)
-				case octet&0xF8 == 0xF0:
-					value = rune(octet & 0x07)
-				default:
-					value = 0
-				}
-
-				// Check and decode the trailing octets.
-				for k := 1; k < width; k++ {
-					octet = parser.raw_buffer[parser.raw_buffer_pos+k]
-
-					// Check if the octet is valid.
-					if (octet & 0xC0) != 0x80 {
-						return yaml_parser_set_reader_error(parser,
-							"invalid trailing UTF-8 octet",
-							parser.offset+k, int(octet))
-					}
-
-					// Decode the octet.
-					value = (value << 6) + rune(octet&0x3F)
-				}
-
-				// Check the length of the sequence against the value.
-				switch {
-				case width == 1:
-				case width == 2 && value >= 0x80:
-				case width == 3 && value >= 0x800:
-				case width == 4 && value >= 0x10000:
-				default:
-					return yaml_parser_set_reader_error(parser,
-						"invalid length of a UTF-8 sequence",
-						parser.offset, -1)
-				}
-
-				// Check the range of the value.
-				if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
-					return yaml_parser_set_reader_error(parser,
-						"invalid Unicode character",
-						parser.offset, int(value))
-				}
-
-			case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
-				var low, high int
-				if parser.encoding == yaml_UTF16LE_ENCODING {
-					low, high = 0, 1
-				} else {
-					low, high = 1, 0
-				}
-
-				// The UTF-16 encoding is not as simple as one might
-				// naively think.  Check RFC 2781
-				// (http://www.ietf.org/rfc/rfc2781.txt).
-				//
-				// Normally, two subsequent bytes describe a Unicode
-				// character.  However a special technique (called a
-				// surrogate pair) is used for specifying character
-				// values larger than 0xFFFF.
-				//
-				// A surrogate pair consists of two pseudo-characters:
-				//      high surrogate area (0xD800-0xDBFF)
-				//      low surrogate area (0xDC00-0xDFFF)
-				//
-				// The following formulas are used for decoding
-				// and encoding characters using surrogate pairs:
-				//
-				//  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
-				//  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
-				//  W1 = 110110yyyyyyyyyy
-				//  W2 = 110111xxxxxxxxxx
-				//
-				// where U is the character value, W1 is the high surrogate
-				// area, W2 is the low surrogate area.
-
-				// Check for incomplete UTF-16 character.
-				if raw_unread < 2 {
-					if parser.eof {
-						return yaml_parser_set_reader_error(parser,
-							"incomplete UTF-16 character",
-							parser.offset, -1)
-					}
-					break inner
-				}
-
-				// Get the character.
-				value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
-					(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
-
-				// Check for unexpected low surrogate area.
-				if value&0xFC00 == 0xDC00 {
-					return yaml_parser_set_reader_error(parser,
-						"unexpected low surrogate area",
-						parser.offset, int(value))
-				}
-
-				// Check for a high surrogate area.
-				if value&0xFC00 == 0xD800 {
-					width = 4
-
-					// Check for incomplete surrogate pair.
-					if raw_unread < 4 {
-						if parser.eof {
-							return yaml_parser_set_reader_error(parser,
-								"incomplete UTF-16 surrogate pair",
-								parser.offset, -1)
-						}
-						break inner
-					}
-
-					// Get the next character.
-					value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
-						(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
-
-					// Check for a low surrogate area.
-					if value2&0xFC00 != 0xDC00 {
-						return yaml_parser_set_reader_error(parser,
-							"expected low surrogate area",
-							parser.offset+2, int(value2))
-					}
-
-					// Generate the value of the surrogate pair.
-					value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
-				} else {
-					width = 2
-				}
-
-			default:
-				panic("impossible")
-			}
-
-			// Check if the character is in the allowed range:
-			//      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
-			//      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
-			//      | [#x10000-#x10FFFF]                        (32 bit)
-			switch {
-			case value == 0x09:
-			case value == 0x0A:
-			case value == 0x0D:
-			case value >= 0x20 && value <= 0x7E:
-			case value == 0x85:
-			case value >= 0xA0 && value <= 0xD7FF:
-			case value >= 0xE000 && value <= 0xFFFD:
-			case value >= 0x10000 && value <= 0x10FFFF:
-			default:
-				return yaml_parser_set_reader_error(parser,
-					"control characters are not allowed",
-					parser.offset, int(value))
-			}
-
-			// Move the raw pointers.
-			parser.raw_buffer_pos += width
-			parser.offset += width
-
-			// Finally put the character into the buffer.
-			if value <= 0x7F {
-				// 0000 0000-0000 007F . 0xxxxxxx
-				parser.buffer[buffer_len+0] = byte(value)
-				buffer_len += 1
-			} else if value <= 0x7FF {
-				// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
-				parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
-				parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
-				buffer_len += 2
-			} else if value <= 0xFFFF {
-				// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
-				parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
-				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
-				parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
-				buffer_len += 3
-			} else {
-				// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
-				parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
-				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
-				parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
-				parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
-				buffer_len += 4
-			}
-
-			parser.unread++
-		}
-
-		// On EOF, put NUL into the buffer and return.
-		if parser.eof {
-			parser.buffer[buffer_len] = 0
-			buffer_len++
-			parser.unread++
-			break
-		}
-	}
-	// [Go] Read the documentation of this function above. To return true,
-	// we need to have the given length in the buffer. Not doing that means
-	// every single check that calls this function to make sure the buffer
-	// has a given length is Go) panicking; or C) accessing invalid memory.
-	// This happens here due to the EOF above breaking early.
-	for buffer_len < length {
-		parser.buffer[buffer_len] = 0
-		buffer_len++
-	}
-	parser.buffer = parser.buffer[:buffer_len]
-	return true
-}

sesh/vendor/gopkg.in/yaml.v3/resolve.go

@@ -1,326 +0,0 @@
-//
-// Copyright (c) 2011-2019 Canonical Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package yaml
-
-import (
-	"encoding/base64"
-	"math"
-	"regexp"
-	"strconv"
-	"strings"
-	"time"
-)
-
-type resolveMapItem struct {
-	value interface{}
-	tag   string
-}
-
-var resolveTable = make([]byte, 256)
-var resolveMap = make(map[string]resolveMapItem)
-
-func init() {
-	t := resolveTable
-	t[int('+')] = 'S' // Sign
-	t[int('-')] = 'S'
-	for _, c := range "0123456789" {
-		t[int(c)] = 'D' // Digit
-	}
-	for _, c := range "yYnNtTfFoO~" {
-		t[int(c)] = 'M' // In map
-	}
-	t[int('.')] = '.' // Float (potentially in map)
-
-	var resolveMapList = []struct {
-		v   interface{}
-		tag string
-		l   []string
-	}{
-		{true, boolTag, []string{"true", "True", "TRUE"}},
-		{false, boolTag, []string{"false", "False", "FALSE"}},
-		{nil, nullTag, []string{"", "~", "null", "Null", "NULL"}},
-		{math.NaN(), floatTag, []string{".nan", ".NaN", ".NAN"}},
-		{math.Inf(+1), floatTag, []string{".inf", ".Inf", ".INF"}},
-		{math.Inf(+1), floatTag, []string{"+.inf", "+.Inf", "+.INF"}},
-		{math.Inf(-1), floatTag, []string{"-.inf", "-.Inf", "-.INF"}},
-		{"<<", mergeTag, []string{"<<"}},
-	}
-
-	m := resolveMap
-	for _, item := range resolveMapList {
-		for _, s := range item.l {
-			m[s] = resolveMapItem{item.v, item.tag}
-		}
-	}
-}
-
-const (
-	nullTag      = "!!null"
-	boolTag      = "!!bool"
-	strTag       = "!!str"
-	intTag       = "!!int"
-	floatTag     = "!!float"
-	timestampTag = "!!timestamp"
-	seqTag       = "!!seq"
-	mapTag       = "!!map"
-	binaryTag    = "!!binary"
-	mergeTag     = "!!merge"
-)
-
-var longTags = make(map[string]string)
-var shortTags = make(map[string]string)
-
-func init() {
-	for _, stag := range []string{nullTag, boolTag, strTag, intTag, floatTag, timestampTag, seqTag, mapTag, binaryTag, mergeTag} {
-		ltag := longTag(stag)
-		longTags[stag] = ltag
-		shortTags[ltag] = stag
-	}
-}
-
-const longTagPrefix = "tag:yaml.org,2002:"
-
-func shortTag(tag string) string {
-	if strings.HasPrefix(tag, longTagPrefix) {
-		if stag, ok := shortTags[tag]; ok {
-			return stag
-		}
-		return "!!" + tag[len(longTagPrefix):]
-	}
-	return tag
-}
-
-func longTag(tag string) string {
-	if strings.HasPrefix(tag, "!!") {
-		if ltag, ok := longTags[tag]; ok {
-			return ltag
-		}
-		return longTagPrefix + tag[2:]
-	}
-	return tag
-}
-
-func resolvableTag(tag string) bool {
-	switch tag {
-	case "", strTag, boolTag, intTag, floatTag, nullTag, timestampTag:
-		return true
-	}
-	return false
-}
-
-var yamlStyleFloat = regexp.MustCompile(`^[-+]?(\.[0-9]+|[0-9]+(\.[0-9]*)?)([eE][-+]?[0-9]+)?$`)
-
-func resolve(tag string, in string) (rtag string, out interface{}) {
-	tag = shortTag(tag)
-	if !resolvableTag(tag) {
-		return tag, in
-	}
-
-	defer func() {
-		switch tag {
-		case "", rtag, strTag, binaryTag:
-			return
-		case floatTag:
-			if rtag == intTag {
-				switch v := out.(type) {
-				case int64:
-					rtag = floatTag
-					out = float64(v)
-					return
-				case int:
-					rtag = floatTag
-					out = float64(v)
-					return
-				}
-			}
-		}
-		failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
-	}()
-
-	// Any data is accepted as a !!str or !!binary.
-	// Otherwise, the prefix is enough of a hint about what it might be.
-	hint := byte('N')
-	if in != "" {
-		hint = resolveTable[in[0]]
-	}
-	if hint != 0 && tag != strTag && tag != binaryTag {
-		// Handle things we can lookup in a map.
-		if item, ok := resolveMap[in]; ok {
-			return item.tag, item.value
-		}
-
-		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
-		// are purposefully unsupported here. They're still quoted on
-		// the way out for compatibility with other parser, though.
-
-		switch hint {
-		case 'M':
-			// We've already checked the map above.
-
-		case '.':
-			// Not in the map, so maybe a normal float.
-			floatv, err := strconv.ParseFloat(in, 64)
-			if err == nil {
-				return floatTag, floatv
-			}
-
-		case 'D', 'S':
-			// Int, float, or timestamp.
-			// Only try values as a timestamp if the value is unquoted or there's an explicit
-			// !!timestamp tag.
-			if tag == "" || tag == timestampTag {
-				t, ok := parseTimestamp(in)
-				if ok {
-					return timestampTag, t
-				}
-			}
-
-			plain := strings.Replace(in, "_", "", -1)
-			intv, err := strconv.ParseInt(plain, 0, 64)
-			if err == nil {
-				if intv == int64(int(intv)) {
-					return intTag, int(intv)
-				} else {
-					return intTag, intv
-				}
-			}
-			uintv, err := strconv.ParseUint(plain, 0, 64)
-			if err == nil {
-				return intTag, uintv
-			}
-			if yamlStyleFloat.MatchString(plain) {
-				floatv, err := strconv.ParseFloat(plain, 64)
-				if err == nil {
-					return floatTag, floatv
-				}
-			}
-			if strings.HasPrefix(plain, "0b") {
-				intv, err := strconv.ParseInt(plain[2:], 2, 64)
-				if err == nil {
-					if intv == int64(int(intv)) {
-						return intTag, int(intv)
-					} else {
-						return intTag, intv
-					}
-				}
-				uintv, err := strconv.ParseUint(plain[2:], 2, 64)
-				if err == nil {
-					return intTag, uintv
-				}
-			} else if strings.HasPrefix(plain, "-0b") {
-				intv, err := strconv.ParseInt("-"+plain[3:], 2, 64)
-				if err == nil {
-					if true || intv == int64(int(intv)) {
-						return intTag, int(intv)
-					} else {
-						return intTag, intv
-					}
-				}
-			}
-			// Octals as introduced in version 1.2 of the spec.
-			// Octals from the 1.1 spec, spelled as 0777, are still
-			// decoded by default in v3 as well for compatibility.
-			// May be dropped in v4 depending on how usage evolves.
-			if strings.HasPrefix(plain, "0o") {
-				intv, err := strconv.ParseInt(plain[2:], 8, 64)
-				if err == nil {
-					if intv == int64(int(intv)) {
-						return intTag, int(intv)
-					} else {
-						return intTag, intv
-					}
-				}
-				uintv, err := strconv.ParseUint(plain[2:], 8, 64)
-				if err == nil {
-					return intTag, uintv
-				}
-			} else if strings.HasPrefix(plain, "-0o") {
-				intv, err := strconv.ParseInt("-"+plain[3:], 8, 64)
-				if err == nil {
-					if true || intv == int64(int(intv)) {
-						return intTag, int(intv)
-					} else {
-						return intTag, intv
-					}
-				}
-			}
-		default:
-			panic("internal error: missing handler for resolver table: " + string(rune(hint)) + " (with " + in + ")")
-		}
-	}
-	return strTag, in
-}
-
-// encodeBase64 encodes s as base64 that is broken up into multiple lines
-// as appropriate for the resulting length.
-func encodeBase64(s string) string {
-	const lineLen = 70
-	encLen := base64.StdEncoding.EncodedLen(len(s))
-	lines := encLen/lineLen + 1
-	buf := make([]byte, encLen*2+lines)
-	in := buf[0:encLen]
-	out := buf[encLen:]
-	base64.StdEncoding.Encode(in, []byte(s))
-	k := 0
-	for i := 0; i < len(in); i += lineLen {
-		j := i + lineLen
-		if j > len(in) {
-			j = len(in)
-		}
-		k += copy(out[k:], in[i:j])
-		if lines > 1 {
-			out[k] = '\n'
-			k++
-		}
-	}
-	return string(out[:k])
-}
-
-// This is a subset of the formats allowed by the regular expression
-// defined at http://yaml.org/type/timestamp.html.
-var allowedTimestampFormats = []string{
-	"2006-1-2T15:4:5.999999999Z07:00", // RCF3339Nano with short date fields.
-	"2006-1-2t15:4:5.999999999Z07:00", // RFC3339Nano with short date fields and lower-case "t".
-	"2006-1-2 15:4:5.999999999",       // space separated with no time zone
-	"2006-1-2",                        // date only
-	// Notable exception: time.Parse cannot handle: "2001-12-14 21:59:43.10 -5"
-	// from the set of examples.
-}
-
-// parseTimestamp parses s as a timestamp string and
-// returns the timestamp and reports whether it succeeded.
-// Timestamp formats are defined at http://yaml.org/type/timestamp.html
-func parseTimestamp(s string) (time.Time, bool) {
-	// TODO write code to check all the formats supported by
-	// http://yaml.org/type/timestamp.html instead of using time.Parse.
-
-	// Quick check: all date formats start with YYYY-.
-	i := 0
-	for ; i < len(s); i++ {
-		if c := s[i]; c < '0' || c > '9' {
-			break
-		}
-	}
-	if i != 4 || i == len(s) || s[i] != '-' {
-		return time.Time{}, false
-	}
-	for _, format := range allowedTimestampFormats {
-		if t, err := time.Parse(format, s); err == nil {
-			return t, true
-		}
-	}
-	return time.Time{}, false
-}

sesh/vendor/gopkg.in/yaml.v3/sorter.go

@@ -1,134 +0,0 @@
-//
-// Copyright (c) 2011-2019 Canonical Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package yaml
-
-import (
-	"reflect"
-	"unicode"
-)
-
-type keyList []reflect.Value
-
-func (l keyList) Len() int      { return len(l) }
-func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
-func (l keyList) Less(i, j int) bool {
-	a := l[i]
-	b := l[j]
-	ak := a.Kind()
-	bk := b.Kind()
-	for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
-		a = a.Elem()
-		ak = a.Kind()
-	}
-	for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
-		b = b.Elem()
-		bk = b.Kind()
-	}
-	af, aok := keyFloat(a)
-	bf, bok := keyFloat(b)
-	if aok && bok {
-		if af != bf {
-			return af < bf
-		}
-		if ak != bk {
-			return ak < bk
-		}
-		return numLess(a, b)
-	}
-	if ak != reflect.String || bk != reflect.String {
-		return ak < bk
-	}
-	ar, br := []rune(a.String()), []rune(b.String())
-	digits := false
-	for i := 0; i < len(ar) && i < len(br); i++ {
-		if ar[i] == br[i] {
-			digits = unicode.IsDigit(ar[i])
-			continue
-		}
-		al := unicode.IsLetter(ar[i])
-		bl := unicode.IsLetter(br[i])
-		if al && bl {
-			return ar[i] < br[i]
-		}
-		if al || bl {
-			if digits {
-				return al
-			} else {
-				return bl
-			}
-		}
-		var ai, bi int
-		var an, bn int64
-		if ar[i] == '0' || br[i] == '0' {
-			for j := i - 1; j >= 0 && unicode.IsDigit(ar[j]); j-- {
-				if ar[j] != '0' {
-					an = 1
-					bn = 1
-					break
-				}
-			}
-		}
-		for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
-			an = an*10 + int64(ar[ai]-'0')
-		}
-		for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
-			bn = bn*10 + int64(br[bi]-'0')
-		}
-		if an != bn {
-			return an < bn
-		}
-		if ai != bi {
-			return ai < bi
-		}
-		return ar[i] < br[i]
-	}
-	return len(ar) < len(br)
-}
-
-// keyFloat returns a float value for v if it is a number/bool
-// and whether it is a number/bool or not.
-func keyFloat(v reflect.Value) (f float64, ok bool) {
-	switch v.Kind() {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return float64(v.Int()), true
-	case reflect.Float32, reflect.Float64:
-		return v.Float(), true
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return float64(v.Uint()), true
-	case reflect.Bool:
-		if v.Bool() {
-			return 1, true
-		}
-		return 0, true
-	}
-	return 0, false
-}
-
-// numLess returns whether a < b.
-// a and b must necessarily have the same kind.
-func numLess(a, b reflect.Value) bool {
-	switch a.Kind() {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return a.Int() < b.Int()
-	case reflect.Float32, reflect.Float64:
-		return a.Float() < b.Float()
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return a.Uint() < b.Uint()
-	case reflect.Bool:
-		return !a.Bool() && b.Bool()
-	}
-	panic("not a number")
-}

sesh/vendor/gopkg.in/yaml.v3/writerc.go

@@ -1,48 +0,0 @@
-// 
-// Copyright (c) 2011-2019 Canonical Ltd
-// Copyright (c) 2006-2010 Kirill Simonov
-// 
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-// 
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-// 
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-package yaml
-
-// Set the writer error and return false.
-func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
-	emitter.error = yaml_WRITER_ERROR
-	emitter.problem = problem
-	return false
-}
-
-// Flush the output buffer.
-func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
-	if emitter.write_handler == nil {
-		panic("write handler not set")
-	}
-
-	// Check if the buffer is empty.
-	if emitter.buffer_pos == 0 {
-		return true
-	}
-
-	if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
-		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
-	}
-	emitter.buffer_pos = 0
-	return true
-}

sesh/vendor/gopkg.in/yaml.v3/yaml.go

@@ -1,698 +0,0 @@
-//
-// Copyright (c) 2011-2019 Canonical Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Package yaml implements YAML support for the Go language.
-//
-// Source code and other details for the project are available at GitHub:
-//
-//   https://github.com/go-yaml/yaml
-//
-package yaml
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"reflect"
-	"strings"
-	"sync"
-	"unicode/utf8"
-)
-
-// The Unmarshaler interface may be implemented by types to customize their
-// behavior when being unmarshaled from a YAML document.
-type Unmarshaler interface {
-	UnmarshalYAML(value *Node) error
-}
-
-type obsoleteUnmarshaler interface {
-	UnmarshalYAML(unmarshal func(interface{}) error) error
-}
-
-// The Marshaler interface may be implemented by types to customize their
-// behavior when being marshaled into a YAML document. The returned value
-// is marshaled in place of the original value implementing Marshaler.
-//
-// If an error is returned by MarshalYAML, the marshaling procedure stops
-// and returns with the provided error.
-type Marshaler interface {
-	MarshalYAML() (interface{}, error)
-}
-
-// Unmarshal decodes the first document found within the in byte slice
-// and assigns decoded values into the out value.
-//
-// Maps and pointers (to a struct, string, int, etc) are accepted as out
-// values. If an internal pointer within a struct is not initialized,
-// the yaml package will initialize it if necessary for unmarshalling
-// the provided data. The out parameter must not be nil.
-//
-// The type of the decoded values should be compatible with the respective
-// values in out. If one or more values cannot be decoded due to a type
-// mismatches, decoding continues partially until the end of the YAML
-// content, and a *yaml.TypeError is returned with details for all
-// missed values.
-//
-// Struct fields are only unmarshalled if they are exported (have an
-// upper case first letter), and are unmarshalled using the field name
-// lowercased as the default key. Custom keys may be defined via the
-// "yaml" name in the field tag: the content preceding the first comma
-// is used as the key, and the following comma-separated options are
-// used to tweak the marshalling process (see Marshal).
-// Conflicting names result in a runtime error.
-//
-// For example:
-//
-//     type T struct {
-//         F int `yaml:"a,omitempty"`
-//         B int
-//     }
-//     var t T
-//     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
-//
-// See the documentation of Marshal for the format of tags and a list of
-// supported tag options.
-//
-func Unmarshal(in []byte, out interface{}) (err error) {
-	return unmarshal(in, out, false)
-}
-
-// A Decoder reads and decodes YAML values from an input stream.
-type Decoder struct {
-	parser      *parser
-	knownFields bool
-}
-
-// NewDecoder returns a new decoder that reads from r.
-//
-// The decoder introduces its own buffering and may read
-// data from r beyond the YAML values requested.
-func NewDecoder(r io.Reader) *Decoder {
-	return &Decoder{
-		parser: newParserFromReader(r),
-	}
-}
-
-// KnownFields ensures that the keys in decoded mappings to
-// exist as fields in the struct being decoded into.
-func (dec *Decoder) KnownFields(enable bool) {
-	dec.knownFields = enable
-}
-
-// Decode reads the next YAML-encoded value from its input
-// and stores it in the value pointed to by v.
-//
-// See the documentation for Unmarshal for details about the
-// conversion of YAML into a Go value.
-func (dec *Decoder) Decode(v interface{}) (err error) {
-	d := newDecoder()
-	d.knownFields = dec.knownFields
-	defer handleErr(&err)
-	node := dec.parser.parse()
-	if node == nil {
-		return io.EOF
-	}
-	out := reflect.ValueOf(v)
-	if out.Kind() == reflect.Ptr && !out.IsNil() {
-		out = out.Elem()
-	}
-	d.unmarshal(node, out)
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	return nil
-}
-
-// Decode decodes the node and stores its data into the value pointed to by v.
-//
-// See the documentation for Unmarshal for details about the
-// conversion of YAML into a Go value.
-func (n *Node) Decode(v interface{}) (err error) {
-	d := newDecoder()
-	defer handleErr(&err)
-	out := reflect.ValueOf(v)
-	if out.Kind() == reflect.Ptr && !out.IsNil() {
-		out = out.Elem()
-	}
-	d.unmarshal(n, out)
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	return nil
-}
-
-func unmarshal(in []byte, out interface{}, strict bool) (err error) {
-	defer handleErr(&err)
-	d := newDecoder()
-	p := newParser(in)
-	defer p.destroy()
-	node := p.parse()
-	if node != nil {
-		v := reflect.ValueOf(out)
-		if v.Kind() == reflect.Ptr && !v.IsNil() {
-			v = v.Elem()
-		}
-		d.unmarshal(node, v)
-	}
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	return nil
-}
-
-// Marshal serializes the value provided into a YAML document. The structure
-// of the generated document will reflect the structure of the value itself.
-// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
-//
-// Struct fields are only marshalled if they are exported (have an upper case
-// first letter), and are marshalled using the field name lowercased as the
-// default key. Custom keys may be defined via the "yaml" name in the field
-// tag: the content preceding the first comma is used as the key, and the
-// following comma-separated options are used to tweak the marshalling process.
-// Conflicting names result in a runtime error.
-//
-// The field tag format accepted is:
-//
-//     `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
-//
-// The following flags are currently supported:
-//
-//     omitempty    Only include the field if it's not set to the zero
-//                  value for the type or to empty slices or maps.
-//                  Zero valued structs will be omitted if all their public
-//                  fields are zero, unless they implement an IsZero
-//                  method (see the IsZeroer interface type), in which
-//                  case the field will be excluded if IsZero returns true.
-//
-//     flow         Marshal using a flow style (useful for structs,
-//                  sequences and maps).
-//
-//     inline       Inline the field, which must be a struct or a map,
-//                  causing all of its fields or keys to be processed as if
-//                  they were part of the outer struct. For maps, keys must
-//                  not conflict with the yaml keys of other struct fields.
-//
-// In addition, if the key is "-", the field is ignored.
-//
-// For example:
-//
-//     type T struct {
-//         F int `yaml:"a,omitempty"`
-//         B int
-//     }
-//     yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
-//     yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
-//
-func Marshal(in interface{}) (out []byte, err error) {
-	defer handleErr(&err)
-	e := newEncoder()
-	defer e.destroy()
-	e.marshalDoc("", reflect.ValueOf(in))
-	e.finish()
-	out = e.out
-	return
-}
-
-// An Encoder writes YAML values to an output stream.
-type Encoder struct {
-	encoder *encoder
-}
-
-// NewEncoder returns a new encoder that writes to w.
-// The Encoder should be closed after use to flush all data
-// to w.
-func NewEncoder(w io.Writer) *Encoder {
-	return &Encoder{
-		encoder: newEncoderWithWriter(w),
-	}
-}
-
-// Encode writes the YAML encoding of v to the stream.
-// If multiple items are encoded to the stream, the
-// second and subsequent document will be preceded
-// with a "---" document separator, but the first will not.
-//
-// See the documentation for Marshal for details about the conversion of Go
-// values to YAML.
-func (e *Encoder) Encode(v interface{}) (err error) {
-	defer handleErr(&err)
-	e.encoder.marshalDoc("", reflect.ValueOf(v))
-	return nil
-}
-
-// Encode encodes value v and stores its representation in n.
-//
-// See the documentation for Marshal for details about the
-// conversion of Go values into YAML.
-func (n *Node) Encode(v interface{}) (err error) {
-	defer handleErr(&err)
-	e := newEncoder()
-	defer e.destroy()
-	e.marshalDoc("", reflect.ValueOf(v))
-	e.finish()
-	p := newParser(e.out)
-	p.textless = true
-	defer p.destroy()
-	doc := p.parse()
-	*n = *doc.Content[0]
-	return nil
-}
-
-// SetIndent changes the used indentation used when encoding.
-func (e *Encoder) SetIndent(spaces int) {
-	if spaces < 0 {
-		panic("yaml: cannot indent to a negative number of spaces")
-	}
-	e.encoder.indent = spaces
-}
-
-// Close closes the encoder by writing any remaining data.
-// It does not write a stream terminating string "...".
-func (e *Encoder) Close() (err error) {
-	defer handleErr(&err)
-	e.encoder.finish()
-	return nil
-}
-
-func handleErr(err *error) {
-	if v := recover(); v != nil {
-		if e, ok := v.(yamlError); ok {
-			*err = e.err
-		} else {
-			panic(v)
-		}
-	}
-}
-
-type yamlError struct {
-	err error
-}
-
-func fail(err error) {
-	panic(yamlError{err})
-}
-
-func failf(format string, args ...interface{}) {
-	panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
-}
-
-// A TypeError is returned by Unmarshal when one or more fields in
-// the YAML document cannot be properly decoded into the requested
-// types. When this error is returned, the value is still
-// unmarshaled partially.
-type TypeError struct {
-	Errors []string
-}
-
-func (e *TypeError) Error() string {
-	return fmt.Sprintf("yaml: unmarshal errors:\n  %s", strings.Join(e.Errors, "\n  "))
-}
-
-type Kind uint32
-
-const (
-	DocumentNode Kind = 1 << iota
-	SequenceNode
-	MappingNode
-	ScalarNode
-	AliasNode
-)
-
-type Style uint32
-
-const (
-	TaggedStyle Style = 1 << iota
-	DoubleQuotedStyle
-	SingleQuotedStyle
-	LiteralStyle
-	FoldedStyle
-	FlowStyle
-)
-
-// Node represents an element in the YAML document hierarchy. While documents
-// are typically encoded and decoded into higher level types, such as structs
-// and maps, Node is an intermediate representation that allows detailed
-// control over the content being decoded or encoded.
-//
-// It's worth noting that although Node offers access into details such as
-// line numbers, colums, and comments, the content when re-encoded will not
-// have its original textual representation preserved. An effort is made to
-// render the data plesantly, and to preserve comments near the data they
-// describe, though.
-//
-// Values that make use of the Node type interact with the yaml package in the
-// same way any other type would do, by encoding and decoding yaml data
-// directly or indirectly into them.
-//
-// For example:
-//
-//     var person struct {
-//             Name    string
-//             Address yaml.Node
-//     }
-//     err := yaml.Unmarshal(data, &person)
-// 
-// Or by itself:
-//
-//     var person Node
-//     err := yaml.Unmarshal(data, &person)
-//
-type Node struct {
-	// Kind defines whether the node is a document, a mapping, a sequence,
-	// a scalar value, or an alias to another node. The specific data type of
-	// scalar nodes may be obtained via the ShortTag and LongTag methods.
-	Kind  Kind
-
-	// Style allows customizing the apperance of the node in the tree.
-	Style Style
-
-	// Tag holds the YAML tag defining the data type for the value.
-	// When decoding, this field will always be set to the resolved tag,
-	// even when it wasn't explicitly provided in the YAML content.
-	// When encoding, if this field is unset the value type will be
-	// implied from the node properties, and if it is set, it will only
-	// be serialized into the representation if TaggedStyle is used or
-	// the implicit tag diverges from the provided one.
-	Tag string
-
-	// Value holds the unescaped and unquoted represenation of the value.
-	Value string
-
-	// Anchor holds the anchor name for this node, which allows aliases to point to it.
-	Anchor string
-
-	// Alias holds the node that this alias points to. Only valid when Kind is AliasNode.
-	Alias *Node
-
-	// Content holds contained nodes for documents, mappings, and sequences.
-	Content []*Node
-
-	// HeadComment holds any comments in the lines preceding the node and
-	// not separated by an empty line.
-	HeadComment string
-
-	// LineComment holds any comments at the end of the line where the node is in.
-	LineComment string
-
-	// FootComment holds any comments following the node and before empty lines.
-	FootComment string
-
-	// Line and Column hold the node position in the decoded YAML text.
-	// These fields are not respected when encoding the node.
-	Line   int
-	Column int
-}
-
-// IsZero returns whether the node has all of its fields unset.
-func (n *Node) IsZero() bool {
-	return n.Kind == 0 && n.Style == 0 && n.Tag == "" && n.Value == "" && n.Anchor == "" && n.Alias == nil && n.Content == nil &&
-		n.HeadComment == "" && n.LineComment == "" && n.FootComment == "" && n.Line == 0 && n.Column == 0
-}
-
-
-// LongTag returns the long form of the tag that indicates the data type for
-// the node. If the Tag field isn't explicitly defined, one will be computed
-// based on the node properties.
-func (n *Node) LongTag() string {
-	return longTag(n.ShortTag())
-}
-
-// ShortTag returns the short form of the YAML tag that indicates data type for
-// the node. If the Tag field isn't explicitly defined, one will be computed
-// based on the node properties.
-func (n *Node) ShortTag() string {
-	if n.indicatedString() {
-		return strTag
-	}
-	if n.Tag == "" || n.Tag == "!" {
-		switch n.Kind {
-		case MappingNode:
-			return mapTag
-		case SequenceNode:
-			return seqTag
-		case AliasNode:
-			if n.Alias != nil {
-				return n.Alias.ShortTag()
-			}
-		case ScalarNode:
-			tag, _ := resolve("", n.Value)
-			return tag
-		case 0:
-			// Special case to make the zero value convenient.
-			if n.IsZero() {
-				return nullTag
-			}
-		}
-		return ""
-	}
-	return shortTag(n.Tag)
-}
-
-func (n *Node) indicatedString() bool {
-	return n.Kind == ScalarNode &&
-		(shortTag(n.Tag) == strTag ||
-			(n.Tag == "" || n.Tag == "!") && n.Style&(SingleQuotedStyle|DoubleQuotedStyle|LiteralStyle|FoldedStyle) != 0)
-}
-
-// SetString is a convenience function that sets the node to a string value
-// and defines its style in a pleasant way depending on its content.
-func (n *Node) SetString(s string) {
-	n.Kind = ScalarNode
-	if utf8.ValidString(s) {
-		n.Value = s
-		n.Tag = strTag
-	} else {
-		n.Value = encodeBase64(s)
-		n.Tag = binaryTag
-	}
-	if strings.Contains(n.Value, "\n") {
-		n.Style = LiteralStyle
-	}
-}
-
-// --------------------------------------------------------------------------
-// Maintain a mapping of keys to structure field indexes
-
-// The code in this section was copied from mgo/bson.
-
-// structInfo holds details for the serialization of fields of
-// a given struct.
-type structInfo struct {
-	FieldsMap  map[string]fieldInfo
-	FieldsList []fieldInfo
-
-	// InlineMap is the number of the field in the struct that
-	// contains an ,inline map, or -1 if there's none.
-	InlineMap int
-
-	// InlineUnmarshalers holds indexes to inlined fields that
-	// contain unmarshaler values.
-	InlineUnmarshalers [][]int
-}
-
-type fieldInfo struct {
-	Key       string
-	Num       int
-	OmitEmpty bool
-	Flow      bool
-	// Id holds the unique field identifier, so we can cheaply
-	// check for field duplicates without maintaining an extra map.
-	Id int
-
-	// Inline holds the field index if the field is part of an inlined struct.
-	Inline []int
-}
-
-var structMap = make(map[reflect.Type]*structInfo)
-var fieldMapMutex sync.RWMutex
-var unmarshalerType reflect.Type
-
-func init() {
-	var v Unmarshaler
-	unmarshalerType = reflect.ValueOf(&v).Elem().Type()
-}
-
-func getStructInfo(st reflect.Type) (*structInfo, error) {
-	fieldMapMutex.RLock()
-	sinfo, found := structMap[st]
-	fieldMapMutex.RUnlock()
-	if found {
-		return sinfo, nil
-	}
-
-	n := st.NumField()
-	fieldsMap := make(map[string]fieldInfo)
-	fieldsList := make([]fieldInfo, 0, n)
-	inlineMap := -1
-	inlineUnmarshalers := [][]int(nil)
-	for i := 0; i != n; i++ {
-		field := st.Field(i)
-		if field.PkgPath != "" && !field.Anonymous {
-			continue // Private field
-		}
-
-		info := fieldInfo{Num: i}
-
-		tag := field.Tag.Get("yaml")
-		if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
-			tag = string(field.Tag)
-		}
-		if tag == "-" {
-			continue
-		}
-
-		inline := false
-		fields := strings.Split(tag, ",")
-		if len(fields) > 1 {
-			for _, flag := range fields[1:] {
-				switch flag {
-				case "omitempty":
-					info.OmitEmpty = true
-				case "flow":
-					info.Flow = true
-				case "inline":
-					inline = true
-				default:
-					return nil, errors.New(fmt.Sprintf("unsupported flag %q in tag %q of type %s", flag, tag, st))
-				}
-			}
-			tag = fields[0]
-		}
-
-		if inline {
-			switch field.Type.Kind() {
-			case reflect.Map:
-				if inlineMap >= 0 {
-					return nil, errors.New("multiple ,inline maps in struct " + st.String())
-				}
-				if field.Type.Key() != reflect.TypeOf("") {
-					return nil, errors.New("option ,inline needs a map with string keys in struct " + st.String())
-				}
-				inlineMap = info.Num
-			case reflect.Struct, reflect.Ptr:
-				ftype := field.Type
-				for ftype.Kind() == reflect.Ptr {
-					ftype = ftype.Elem()
-				}
-				if ftype.Kind() != reflect.Struct {
-					return nil, errors.New("option ,inline may only be used on a struct or map field")
-				}
-				if reflect.PtrTo(ftype).Implements(unmarshalerType) {
-					inlineUnmarshalers = append(inlineUnmarshalers, []int{i})
-				} else {
-					sinfo, err := getStructInfo(ftype)
-					if err != nil {
-						return nil, err
-					}
-					for _, index := range sinfo.InlineUnmarshalers {
-						inlineUnmarshalers = append(inlineUnmarshalers, append([]int{i}, index...))
-					}
-					for _, finfo := range sinfo.FieldsList {
-						if _, found := fieldsMap[finfo.Key]; found {
-							msg := "duplicated key '" + finfo.Key + "' in struct " + st.String()
-							return nil, errors.New(msg)
-						}
-						if finfo.Inline == nil {
-							finfo.Inline = []int{i, finfo.Num}
-						} else {
-							finfo.Inline = append([]int{i}, finfo.Inline...)
-						}
-						finfo.Id = len(fieldsList)
-						fieldsMap[finfo.Key] = finfo
-						fieldsList = append(fieldsList, finfo)
-					}
-				}
-			default:
-				return nil, errors.New("option ,inline may only be used on a struct or map field")
-			}
-			continue
-		}
-
-		if tag != "" {
-			info.Key = tag
-		} else {
-			info.Key = strings.ToLower(field.Name)
-		}
-
-		if _, found = fieldsMap[info.Key]; found {
-			msg := "duplicated key '" + info.Key + "' in struct " + st.String()
-			return nil, errors.New(msg)
-		}
-
-		info.Id = len(fieldsList)
-		fieldsList = append(fieldsList, info)
-		fieldsMap[info.Key] = info
-	}
-
-	sinfo = &structInfo{
-		FieldsMap:          fieldsMap,
-		FieldsList:         fieldsList,
-		InlineMap:          inlineMap,
-		InlineUnmarshalers: inlineUnmarshalers,
-	}
-
-	fieldMapMutex.Lock()
-	structMap[st] = sinfo
-	fieldMapMutex.Unlock()
-	return sinfo, nil
-}
-
-// IsZeroer is used to check whether an object is zero to
-// determine whether it should be omitted when marshaling
-// with the omitempty flag. One notable implementation
-// is time.Time.
-type IsZeroer interface {
-	IsZero() bool
-}
-
-func isZero(v reflect.Value) bool {
-	kind := v.Kind()
-	if z, ok := v.Interface().(IsZeroer); ok {
-		if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() {
-			return true
-		}
-		return z.IsZero()
-	}
-	switch kind {
-	case reflect.String:
-		return len(v.String()) == 0
-	case reflect.Interface, reflect.Ptr:
-		return v.IsNil()
-	case reflect.Slice:
-		return v.Len() == 0
-	case reflect.Map:
-		return v.Len() == 0
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return v.Int() == 0
-	case reflect.Float32, reflect.Float64:
-		return v.Float() == 0
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return v.Uint() == 0
-	case reflect.Bool:
-		return !v.Bool()
-	case reflect.Struct:
-		vt := v.Type()
-		for i := v.NumField() - 1; i >= 0; i-- {
-			if vt.Field(i).PkgPath != "" {
-				continue // Private field
-			}
-			if !isZero(v.Field(i)) {
-				return false
-			}
-		}
-		return true
-	}
-	return false
-}

sesh/vendor/gopkg.in/yaml.v3/yamlh.go

@@ -1,807 +0,0 @@
-//
-// Copyright (c) 2011-2019 Canonical Ltd
-// Copyright (c) 2006-2010 Kirill Simonov
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-package yaml
-
-import (
-	"fmt"
-	"io"
-)
-
-// The version directive data.
-type yaml_version_directive_t struct {
-	major int8 // The major version number.
-	minor int8 // The minor version number.
-}
-
-// The tag directive data.
-type yaml_tag_directive_t struct {
-	handle []byte // The tag handle.
-	prefix []byte // The tag prefix.
-}
-
-type yaml_encoding_t int
-
-// The stream encoding.
-const (
-	// Let the parser choose the encoding.
-	yaml_ANY_ENCODING yaml_encoding_t = iota
-
-	yaml_UTF8_ENCODING    // The default UTF-8 encoding.
-	yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
-	yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
-)
-
-type yaml_break_t int
-
-// Line break types.
-const (
-	// Let the parser choose the break type.
-	yaml_ANY_BREAK yaml_break_t = iota
-
-	yaml_CR_BREAK   // Use CR for line breaks (Mac style).
-	yaml_LN_BREAK   // Use LN for line breaks (Unix style).
-	yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
-)
-
-type yaml_error_type_t int
-
-// Many bad things could happen with the parser and emitter.
-const (
-	// No error is produced.
-	yaml_NO_ERROR yaml_error_type_t = iota
-
-	yaml_MEMORY_ERROR   // Cannot allocate or reallocate a block of memory.
-	yaml_READER_ERROR   // Cannot read or decode the input stream.
-	yaml_SCANNER_ERROR  // Cannot scan the input stream.
-	yaml_PARSER_ERROR   // Cannot parse the input stream.
-	yaml_COMPOSER_ERROR // Cannot compose a YAML document.
-	yaml_WRITER_ERROR   // Cannot write to the output stream.
-	yaml_EMITTER_ERROR  // Cannot emit a YAML stream.
-)
-
-// The pointer position.
-type yaml_mark_t struct {
-	index  int // The position index.
-	line   int // The position line.
-	column int // The position column.
-}
-
-// Node Styles
-
-type yaml_style_t int8
-
-type yaml_scalar_style_t yaml_style_t
-
-// Scalar styles.
-const (
-	// Let the emitter choose the style.
-	yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = 0
-
-	yaml_PLAIN_SCALAR_STYLE         yaml_scalar_style_t = 1 << iota // The plain scalar style.
-	yaml_SINGLE_QUOTED_SCALAR_STYLE                                 // The single-quoted scalar style.
-	yaml_DOUBLE_QUOTED_SCALAR_STYLE                                 // The double-quoted scalar style.
-	yaml_LITERAL_SCALAR_STYLE                                       // The literal scalar style.
-	yaml_FOLDED_SCALAR_STYLE                                        // The folded scalar style.
-)
-
-type yaml_sequence_style_t yaml_style_t
-
-// Sequence styles.
-const (
-	// Let the emitter choose the style.
-	yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
-
-	yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
-	yaml_FLOW_SEQUENCE_STYLE  // The flow sequence style.
-)
-
-type yaml_mapping_style_t yaml_style_t
-
-// Mapping styles.
-const (
-	// Let the emitter choose the style.
-	yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
-
-	yaml_BLOCK_MAPPING_STYLE // The block mapping style.
-	yaml_FLOW_MAPPING_STYLE  // The flow mapping style.
-)
-
-// Tokens
-
-type yaml_token_type_t int
-
-// Token types.
-const (
-	// An empty token.
-	yaml_NO_TOKEN yaml_token_type_t = iota
-
-	yaml_STREAM_START_TOKEN // A STREAM-START token.
-	yaml_STREAM_END_TOKEN   // A STREAM-END token.
-
-	yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
-	yaml_TAG_DIRECTIVE_TOKEN     // A TAG-DIRECTIVE token.
-	yaml_DOCUMENT_START_TOKEN    // A DOCUMENT-START token.
-	yaml_DOCUMENT_END_TOKEN      // A DOCUMENT-END token.
-
-	yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
-	yaml_BLOCK_MAPPING_START_TOKEN  // A BLOCK-SEQUENCE-END token.
-	yaml_BLOCK_END_TOKEN            // A BLOCK-END token.
-
-	yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
-	yaml_FLOW_SEQUENCE_END_TOKEN   // A FLOW-SEQUENCE-END token.
-	yaml_FLOW_MAPPING_START_TOKEN  // A FLOW-MAPPING-START token.
-	yaml_FLOW_MAPPING_END_TOKEN    // A FLOW-MAPPING-END token.
-
-	yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
-	yaml_FLOW_ENTRY_TOKEN  // A FLOW-ENTRY token.
-	yaml_KEY_TOKEN         // A KEY token.
-	yaml_VALUE_TOKEN       // A VALUE token.
-
-	yaml_ALIAS_TOKEN  // An ALIAS token.
-	yaml_ANCHOR_TOKEN // An ANCHOR token.
-	yaml_TAG_TOKEN    // A TAG token.
-	yaml_SCALAR_TOKEN // A SCALAR token.
-)
-
-func (tt yaml_token_type_t) String() string {
-	switch tt {
-	case yaml_NO_TOKEN:
-		return "yaml_NO_TOKEN"
-	case yaml_STREAM_START_TOKEN:
-		return "yaml_STREAM_START_TOKEN"
-	case yaml_STREAM_END_TOKEN:
-		return "yaml_STREAM_END_TOKEN"
-	case yaml_VERSION_DIRECTIVE_TOKEN:
-		return "yaml_VERSION_DIRECTIVE_TOKEN"
-	case yaml_TAG_DIRECTIVE_TOKEN:
-		return "yaml_TAG_DIRECTIVE_TOKEN"
-	case yaml_DOCUMENT_START_TOKEN:
-		return "yaml_DOCUMENT_START_TOKEN"
-	case yaml_DOCUMENT_END_TOKEN:
-		return "yaml_DOCUMENT_END_TOKEN"
-	case yaml_BLOCK_SEQUENCE_START_TOKEN:
-		return "yaml_BLOCK_SEQUENCE_START_TOKEN"
-	case yaml_BLOCK_MAPPING_START_TOKEN:
-		return "yaml_BLOCK_MAPPING_START_TOKEN"
-	case yaml_BLOCK_END_TOKEN:
-		return "yaml_BLOCK_END_TOKEN"
-	case yaml_FLOW_SEQUENCE_START_TOKEN:
-		return "yaml_FLOW_SEQUENCE_START_TOKEN"
-	case yaml_FLOW_SEQUENCE_END_TOKEN:
-		return "yaml_FLOW_SEQUENCE_END_TOKEN"
-	case yaml_FLOW_MAPPING_START_TOKEN:
-		return "yaml_FLOW_MAPPING_START_TOKEN"
-	case yaml_FLOW_MAPPING_END_TOKEN:
-		return "yaml_FLOW_MAPPING_END_TOKEN"
-	case yaml_BLOCK_ENTRY_TOKEN:
-		return "yaml_BLOCK_ENTRY_TOKEN"
-	case yaml_FLOW_ENTRY_TOKEN:
-		return "yaml_FLOW_ENTRY_TOKEN"
-	case yaml_KEY_TOKEN:
-		return "yaml_KEY_TOKEN"
-	case yaml_VALUE_TOKEN:
-		return "yaml_VALUE_TOKEN"
-	case yaml_ALIAS_TOKEN:
-		return "yaml_ALIAS_TOKEN"
-	case yaml_ANCHOR_TOKEN:
-		return "yaml_ANCHOR_TOKEN"
-	case yaml_TAG_TOKEN:
-		return "yaml_TAG_TOKEN"
-	case yaml_SCALAR_TOKEN:
-		return "yaml_SCALAR_TOKEN"
-	}
-	return "<unknown token>"
-}
-
-// The token structure.
-type yaml_token_t struct {
-	// The token type.
-	typ yaml_token_type_t
-
-	// The start/end of the token.
-	start_mark, end_mark yaml_mark_t
-
-	// The stream encoding (for yaml_STREAM_START_TOKEN).
-	encoding yaml_encoding_t
-
-	// The alias/anchor/scalar value or tag/tag directive handle
-	// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
-	value []byte
-
-	// The tag suffix (for yaml_TAG_TOKEN).
-	suffix []byte
-
-	// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
-	prefix []byte
-
-	// The scalar style (for yaml_SCALAR_TOKEN).
-	style yaml_scalar_style_t
-
-	// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
-	major, minor int8
-}
-
-// Events
-
-type yaml_event_type_t int8
-
-// Event types.
-const (
-	// An empty event.
-	yaml_NO_EVENT yaml_event_type_t = iota
-
-	yaml_STREAM_START_EVENT   // A STREAM-START event.
-	yaml_STREAM_END_EVENT     // A STREAM-END event.
-	yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
-	yaml_DOCUMENT_END_EVENT   // A DOCUMENT-END event.
-	yaml_ALIAS_EVENT          // An ALIAS event.
-	yaml_SCALAR_EVENT         // A SCALAR event.
-	yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
-	yaml_SEQUENCE_END_EVENT   // A SEQUENCE-END event.
-	yaml_MAPPING_START_EVENT  // A MAPPING-START event.
-	yaml_MAPPING_END_EVENT    // A MAPPING-END event.
-	yaml_TAIL_COMMENT_EVENT
-)
-
-var eventStrings = []string{
-	yaml_NO_EVENT:             "none",
-	yaml_STREAM_START_EVENT:   "stream start",
-	yaml_STREAM_END_EVENT:     "stream end",
-	yaml_DOCUMENT_START_EVENT: "document start",
-	yaml_DOCUMENT_END_EVENT:   "document end",
-	yaml_ALIAS_EVENT:          "alias",
-	yaml_SCALAR_EVENT:         "scalar",
-	yaml_SEQUENCE_START_EVENT: "sequence start",
-	yaml_SEQUENCE_END_EVENT:   "sequence end",
-	yaml_MAPPING_START_EVENT:  "mapping start",
-	yaml_MAPPING_END_EVENT:    "mapping end",
-	yaml_TAIL_COMMENT_EVENT:   "tail comment",
-}
-
-func (e yaml_event_type_t) String() string {
-	if e < 0 || int(e) >= len(eventStrings) {
-		return fmt.Sprintf("unknown event %d", e)
-	}
-	return eventStrings[e]
-}
-
-// The event structure.
-type yaml_event_t struct {
-
-	// The event type.
-	typ yaml_event_type_t
-
-	// The start and end of the event.
-	start_mark, end_mark yaml_mark_t
-
-	// The document encoding (for yaml_STREAM_START_EVENT).
-	encoding yaml_encoding_t
-
-	// The version directive (for yaml_DOCUMENT_START_EVENT).
-	version_directive *yaml_version_directive_t
-
-	// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
-	tag_directives []yaml_tag_directive_t
-
-	// The comments
-	head_comment []byte
-	line_comment []byte
-	foot_comment []byte
-	tail_comment []byte
-
-	// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
-	anchor []byte
-
-	// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
-	tag []byte
-
-	// The scalar value (for yaml_SCALAR_EVENT).
-	value []byte
-
-	// Is the document start/end indicator implicit, or the tag optional?
-	// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
-	implicit bool
-
-	// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
-	quoted_implicit bool
-
-	// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
-	style yaml_style_t
-}
-
-func (e *yaml_event_t) scalar_style() yaml_scalar_style_t     { return yaml_scalar_style_t(e.style) }
-func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
-func (e *yaml_event_t) mapping_style() yaml_mapping_style_t   { return yaml_mapping_style_t(e.style) }
-
-// Nodes
-
-const (
-	yaml_NULL_TAG      = "tag:yaml.org,2002:null"      // The tag !!null with the only possible value: null.
-	yaml_BOOL_TAG      = "tag:yaml.org,2002:bool"      // The tag !!bool with the values: true and false.
-	yaml_STR_TAG       = "tag:yaml.org,2002:str"       // The tag !!str for string values.
-	yaml_INT_TAG       = "tag:yaml.org,2002:int"       // The tag !!int for integer values.
-	yaml_FLOAT_TAG     = "tag:yaml.org,2002:float"     // The tag !!float for float values.
-	yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
-
-	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
-	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
-
-	// Not in original libyaml.
-	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
-	yaml_MERGE_TAG  = "tag:yaml.org,2002:merge"
-
-	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
-	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
-	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.
-)
-
-type yaml_node_type_t int
-
-// Node types.
-const (
-	// An empty node.
-	yaml_NO_NODE yaml_node_type_t = iota
-
-	yaml_SCALAR_NODE   // A scalar node.
-	yaml_SEQUENCE_NODE // A sequence node.
-	yaml_MAPPING_NODE  // A mapping node.
-)
-
-// An element of a sequence node.
-type yaml_node_item_t int
-
-// An element of a mapping node.
-type yaml_node_pair_t struct {
-	key   int // The key of the element.
-	value int // The value of the element.
-}
-
-// The node structure.
-type yaml_node_t struct {
-	typ yaml_node_type_t // The node type.
-	tag []byte           // The node tag.
-
-	// The node data.
-
-	// The scalar parameters (for yaml_SCALAR_NODE).
-	scalar struct {
-		value  []byte              // The scalar value.
-		length int                 // The length of the scalar value.
-		style  yaml_scalar_style_t // The scalar style.
-	}
-
-	// The sequence parameters (for YAML_SEQUENCE_NODE).
-	sequence struct {
-		items_data []yaml_node_item_t    // The stack of sequence items.
-		style      yaml_sequence_style_t // The sequence style.
-	}
-
-	// The mapping parameters (for yaml_MAPPING_NODE).
-	mapping struct {
-		pairs_data  []yaml_node_pair_t   // The stack of mapping pairs (key, value).
-		pairs_start *yaml_node_pair_t    // The beginning of the stack.
-		pairs_end   *yaml_node_pair_t    // The end of the stack.
-		pairs_top   *yaml_node_pair_t    // The top of the stack.
-		style       yaml_mapping_style_t // The mapping style.
-	}
-
-	start_mark yaml_mark_t // The beginning of the node.
-	end_mark   yaml_mark_t // The end of the node.
-
-}
-
-// The document structure.
-type yaml_document_t struct {
-
-	// The document nodes.
-	nodes []yaml_node_t
-
-	// The version directive.
-	version_directive *yaml_version_directive_t
-
-	// The list of tag directives.
-	tag_directives_data  []yaml_tag_directive_t
-	tag_directives_start int // The beginning of the tag directives list.
-	tag_directives_end   int // The end of the tag directives list.
-
-	start_implicit int // Is the document start indicator implicit?
-	end_implicit   int // Is the document end indicator implicit?
-
-	// The start/end of the document.
-	start_mark, end_mark yaml_mark_t
-}
-
-// The prototype of a read handler.
-//
-// The read handler is called when the parser needs to read more bytes from the
-// source. The handler should write not more than size bytes to the buffer.
-// The number of written bytes should be set to the size_read variable.
-//
-// [in,out]   data        A pointer to an application data specified by
-//                        yaml_parser_set_input().
-// [out]      buffer      The buffer to write the data from the source.
-// [in]       size        The size of the buffer.
-// [out]      size_read   The actual number of bytes read from the source.
-//
-// On success, the handler should return 1.  If the handler failed,
-// the returned value should be 0. On EOF, the handler should set the
-// size_read to 0 and return 1.
-type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
-
-// This structure holds information about a potential simple key.
-type yaml_simple_key_t struct {
-	possible     bool        // Is a simple key possible?
-	required     bool        // Is a simple key required?
-	token_number int         // The number of the token.
-	mark         yaml_mark_t // The position mark.
-}
-
-// The states of the parser.
-type yaml_parser_state_t int
-
-const (
-	yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
-
-	yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE           // Expect the beginning of an implicit document.
-	yaml_PARSE_DOCUMENT_START_STATE                    // Expect DOCUMENT-START.
-	yaml_PARSE_DOCUMENT_CONTENT_STATE                  // Expect the content of a document.
-	yaml_PARSE_DOCUMENT_END_STATE                      // Expect DOCUMENT-END.
-	yaml_PARSE_BLOCK_NODE_STATE                        // Expect a block node.
-	yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
-	yaml_PARSE_FLOW_NODE_STATE                         // Expect a flow node.
-	yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE        // Expect the first entry of a block sequence.
-	yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE              // Expect an entry of a block sequence.
-	yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE         // Expect an entry of an indentless sequence.
-	yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE           // Expect the first key of a block mapping.
-	yaml_PARSE_BLOCK_MAPPING_KEY_STATE                 // Expect a block mapping key.
-	yaml_PARSE_BLOCK_MAPPING_VALUE_STATE               // Expect a block mapping value.
-	yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE         // Expect the first entry of a flow sequence.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE               // Expect an entry of a flow sequence.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE   // Expect a key of an ordered mapping.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE   // Expect the and of an ordered mapping entry.
-	yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE            // Expect the first key of a flow mapping.
-	yaml_PARSE_FLOW_MAPPING_KEY_STATE                  // Expect a key of a flow mapping.
-	yaml_PARSE_FLOW_MAPPING_VALUE_STATE                // Expect a value of a flow mapping.
-	yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE          // Expect an empty value of a flow mapping.
-	yaml_PARSE_END_STATE                               // Expect nothing.
-)
-
-func (ps yaml_parser_state_t) String() string {
-	switch ps {
-	case yaml_PARSE_STREAM_START_STATE:
-		return "yaml_PARSE_STREAM_START_STATE"
-	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
-		return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
-	case yaml_PARSE_DOCUMENT_START_STATE:
-		return "yaml_PARSE_DOCUMENT_START_STATE"
-	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
-		return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
-	case yaml_PARSE_DOCUMENT_END_STATE:
-		return "yaml_PARSE_DOCUMENT_END_STATE"
-	case yaml_PARSE_BLOCK_NODE_STATE:
-		return "yaml_PARSE_BLOCK_NODE_STATE"
-	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
-		return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
-	case yaml_PARSE_FLOW_NODE_STATE:
-		return "yaml_PARSE_FLOW_NODE_STATE"
-	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
-		return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
-	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
-		return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
-	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
-		return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
-	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
-		return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
-	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
-		return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
-	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
-		return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
-	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
-	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
-	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
-	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
-	case yaml_PARSE_END_STATE:
-		return "yaml_PARSE_END_STATE"
-	}
-	return "<unknown parser state>"
-}
-
-// This structure holds aliases data.
-type yaml_alias_data_t struct {
-	anchor []byte      // The anchor.
-	index  int         // The node id.
-	mark   yaml_mark_t // The anchor mark.
-}
-
-// The parser structure.
-//
-// All members are internal. Manage the structure using the
-// yaml_parser_ family of functions.
-type yaml_parser_t struct {
-
-	// Error handling
-
-	error yaml_error_type_t // Error type.
-
-	problem string // Error description.
-
-	// The byte about which the problem occurred.
-	problem_offset int
-	problem_value  int
-	problem_mark   yaml_mark_t
-
-	// The error context.
-	context      string
-	context_mark yaml_mark_t
-
-	// Reader stuff
-
-	read_handler yaml_read_handler_t // Read handler.
-
-	input_reader io.Reader // File input data.
-	input        []byte    // String input data.
-	input_pos    int
-
-	eof bool // EOF flag
-
-	buffer     []byte // The working buffer.
-	buffer_pos int    // The current position of the buffer.
-
-	unread int // The number of unread characters in the buffer.
-
-	newlines int // The number of line breaks since last non-break/non-blank character
-
-	raw_buffer     []byte // The raw buffer.
-	raw_buffer_pos int    // The current position of the buffer.
-
-	encoding yaml_encoding_t // The input encoding.
-
-	offset int         // The offset of the current position (in bytes).
-	mark   yaml_mark_t // The mark of the current position.
-
-	// Comments
-
-	head_comment []byte // The current head comments
-	line_comment []byte // The current line comments
-	foot_comment []byte // The current foot comments
-	tail_comment []byte // Foot comment that happens at the end of a block.
-	stem_comment []byte // Comment in item preceding a nested structure (list inside list item, etc)
-
-	comments      []yaml_comment_t // The folded comments for all parsed tokens
-	comments_head int
-
-	// Scanner stuff
-
-	stream_start_produced bool // Have we started to scan the input stream?
-	stream_end_produced   bool // Have we reached the end of the input stream?
-
-	flow_level int // The number of unclosed '[' and '{' indicators.
-
-	tokens          []yaml_token_t // The tokens queue.
-	tokens_head     int            // The head of the tokens queue.
-	tokens_parsed   int            // The number of tokens fetched from the queue.
-	token_available bool           // Does the tokens queue contain a token ready for dequeueing.
-
-	indent  int   // The current indentation level.
-	indents []int // The indentation levels stack.
-
-	simple_key_allowed bool                // May a simple key occur at the current position?
-	simple_keys        []yaml_simple_key_t // The stack of simple keys.
-	simple_keys_by_tok map[int]int         // possible simple_key indexes indexed by token_number
-
-	// Parser stuff
-
-	state          yaml_parser_state_t    // The current parser state.
-	states         []yaml_parser_state_t  // The parser states stack.
-	marks          []yaml_mark_t          // The stack of marks.
-	tag_directives []yaml_tag_directive_t // The list of TAG directives.
-
-	// Dumper stuff
-
-	aliases []yaml_alias_data_t // The alias data.
-
-	document *yaml_document_t // The currently parsed document.
-}
-
-type yaml_comment_t struct {
-
-	scan_mark  yaml_mark_t // Position where scanning for comments started
-	token_mark yaml_mark_t // Position after which tokens will be associated with this comment
-	start_mark yaml_mark_t // Position of '#' comment mark
-	end_mark   yaml_mark_t // Position where comment terminated
-
-	head []byte
-	line []byte
-	foot []byte
-}
-
-// Emitter Definitions
-
-// The prototype of a write handler.
-//
-// The write handler is called when the emitter needs to flush the accumulated
-// characters to the output.  The handler should write @a size bytes of the
-// @a buffer to the output.
-//
-// @param[in,out]   data        A pointer to an application data specified by
-//                              yaml_emitter_set_output().
-// @param[in]       buffer      The buffer with bytes to be written.
-// @param[in]       size        The size of the buffer.
-//
-// @returns On success, the handler should return @c 1.  If the handler failed,
-// the returned value should be @c 0.
-//
-type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
-
-type yaml_emitter_state_t int
-
-// The emitter states.
-const (
-	// Expect STREAM-START.
-	yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
-
-	yaml_EMIT_FIRST_DOCUMENT_START_STATE       // Expect the first DOCUMENT-START or STREAM-END.
-	yaml_EMIT_DOCUMENT_START_STATE             // Expect DOCUMENT-START or STREAM-END.
-	yaml_EMIT_DOCUMENT_CONTENT_STATE           // Expect the content of a document.
-	yaml_EMIT_DOCUMENT_END_STATE               // Expect DOCUMENT-END.
-	yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE   // Expect the first item of a flow sequence.
-	yaml_EMIT_FLOW_SEQUENCE_TRAIL_ITEM_STATE   // Expect the next item of a flow sequence, with the comma already written out
-	yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE         // Expect an item of a flow sequence.
-	yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE     // Expect the first key of a flow mapping.
-	yaml_EMIT_FLOW_MAPPING_TRAIL_KEY_STATE     // Expect the next key of a flow mapping, with the comma already written out
-	yaml_EMIT_FLOW_MAPPING_KEY_STATE           // Expect a key of a flow mapping.
-	yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE  // Expect a value for a simple key of a flow mapping.
-	yaml_EMIT_FLOW_MAPPING_VALUE_STATE         // Expect a value of a flow mapping.
-	yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE  // Expect the first item of a block sequence.
-	yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE        // Expect an item of a block sequence.
-	yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE    // Expect the first key of a block mapping.
-	yaml_EMIT_BLOCK_MAPPING_KEY_STATE          // Expect the key of a block mapping.
-	yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
-	yaml_EMIT_BLOCK_MAPPING_VALUE_STATE        // Expect a value of a block mapping.
-	yaml_EMIT_END_STATE                        // Expect nothing.
-)
-
-// The emitter structure.
-//
-// All members are internal.  Manage the structure using the @c yaml_emitter_
-// family of functions.
-type yaml_emitter_t struct {
-
-	// Error handling
-
-	error   yaml_error_type_t // Error type.
-	problem string            // Error description.
-
-	// Writer stuff
-
-	write_handler yaml_write_handler_t // Write handler.
-
-	output_buffer *[]byte   // String output data.
-	output_writer io.Writer // File output data.
-
-	buffer     []byte // The working buffer.
-	buffer_pos int    // The current position of the buffer.
-
-	raw_buffer     []byte // The raw buffer.
-	raw_buffer_pos int    // The current position of the buffer.
-
-	encoding yaml_encoding_t // The stream encoding.
-
-	// Emitter stuff
-
-	canonical   bool         // If the output is in the canonical style?
-	best_indent int          // The number of indentation spaces.
-	best_width  int          // The preferred width of the output lines.
-	unicode     bool         // Allow unescaped non-ASCII characters?
-	line_break  yaml_break_t // The preferred line break.
-
-	state  yaml_emitter_state_t   // The current emitter state.
-	states []yaml_emitter_state_t // The stack of states.
-
-	events      []yaml_event_t // The event queue.
-	events_head int            // The head of the event queue.
-
-	indents []int // The stack of indentation levels.
-
-	tag_directives []yaml_tag_directive_t // The list of tag directives.
-
-	indent int // The current indentation level.
-
-	flow_level int // The current flow level.
-
-	root_context       bool // Is it the document root context?
-	sequence_context   bool // Is it a sequence context?
-	mapping_context    bool // Is it a mapping context?
-	simple_key_context bool // Is it a simple mapping key context?
-
-	line       int  // The current line.
-	column     int  // The current column.
-	whitespace bool // If the last character was a whitespace?
-	indention  bool // If the last character was an indentation character (' ', '-', '?', ':')?
-	open_ended bool // If an explicit document end is required?
-
-	space_above bool // Is there's an empty line above?
-	foot_indent int  // The indent used to write the foot comment above, or -1 if none.
-
-	// Anchor analysis.
-	anchor_data struct {
-		anchor []byte // The anchor value.
-		alias  bool   // Is it an alias?
-	}
-
-	// Tag analysis.
-	tag_data struct {
-		handle []byte // The tag handle.
-		suffix []byte // The tag suffix.
-	}
-
-	// Scalar analysis.
-	scalar_data struct {
-		value                 []byte              // The scalar value.
-		multiline             bool                // Does the scalar contain line breaks?
-		flow_plain_allowed    bool                // Can the scalar be expessed in the flow plain style?
-		block_plain_allowed   bool                // Can the scalar be expressed in the block plain style?
-		single_quoted_allowed bool                // Can the scalar be expressed in the single quoted style?
-		block_allowed         bool                // Can the scalar be expressed in the literal or folded styles?
-		style                 yaml_scalar_style_t // The output style.
-	}
-
-	// Comments
-	head_comment []byte
-	line_comment []byte
-	foot_comment []byte
-	tail_comment []byte
-
-	key_line_comment []byte
-
-	// Dumper stuff
-
-	opened bool // If the stream was already opened?
-	closed bool // If the stream was already closed?
-
-	// The information associated with the document nodes.
-	anchors *struct {
-		references int  // The number of references.
-		anchor     int  // The anchor id.
-		serialized bool // If the node has been emitted?
-	}
-
-	last_anchor_id int // The last assigned anchor id.
-
-	document *yaml_document_t // The currently emitted document.
-}

sesh/vendor/gopkg.in/yaml.v3/yamlprivateh.go

@@ -1,198 +0,0 @@
-// 
-// Copyright (c) 2011-2019 Canonical Ltd
-// Copyright (c) 2006-2010 Kirill Simonov
-// 
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-// of the Software, and to permit persons to whom the Software is furnished to do
-// so, subject to the following conditions:
-// 
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-// 
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-package yaml
-
-const (
-	// The size of the input raw buffer.
-	input_raw_buffer_size = 512
-
-	// The size of the input buffer.
-	// It should be possible to decode the whole raw buffer.
-	input_buffer_size = input_raw_buffer_size * 3
-
-	// The size of the output buffer.
-	output_buffer_size = 128
-
-	// The size of the output raw buffer.
-	// It should be possible to encode the whole output buffer.
-	output_raw_buffer_size = (output_buffer_size*2 + 2)
-
-	// The size of other stacks and queues.
-	initial_stack_size  = 16
-	initial_queue_size  = 16
-	initial_string_size = 16
-)
-
-// Check if the character at the specified position is an alphabetical
-// character, a digit, '_', or '-'.
-func is_alpha(b []byte, i int) bool {
-	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
-}
-
-// Check if the character at the specified position is a digit.
-func is_digit(b []byte, i int) bool {
-	return b[i] >= '0' && b[i] <= '9'
-}
-
-// Get the value of a digit.
-func as_digit(b []byte, i int) int {
-	return int(b[i]) - '0'
-}
-
-// Check if the character at the specified position is a hex-digit.
-func is_hex(b []byte, i int) bool {
-	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
-}
-
-// Get the value of a hex-digit.
-func as_hex(b []byte, i int) int {
-	bi := b[i]
-	if bi >= 'A' && bi <= 'F' {
-		return int(bi) - 'A' + 10
-	}
-	if bi >= 'a' && bi <= 'f' {
-		return int(bi) - 'a' + 10
-	}
-	return int(bi) - '0'
-}
-
-// Check if the character is ASCII.
-func is_ascii(b []byte, i int) bool {
-	return b[i] <= 0x7F
-}
-
-// Check if the character at the start of the buffer can be printed unescaped.
-func is_printable(b []byte, i int) bool {
-	return ((b[i] == 0x0A) || // . == #x0A
-		(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
-		(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
-		(b[i] > 0xC2 && b[i] < 0xED) ||
-		(b[i] == 0xED && b[i+1] < 0xA0) ||
-		(b[i] == 0xEE) ||
-		(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
-			!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
-			!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
-}
-
-// Check if the character at the specified position is NUL.
-func is_z(b []byte, i int) bool {
-	return b[i] == 0x00
-}
-
-// Check if the beginning of the buffer is a BOM.
-func is_bom(b []byte, i int) bool {
-	return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
-}
-
-// Check if the character at the specified position is space.
-func is_space(b []byte, i int) bool {
-	return b[i] == ' '
-}
-
-// Check if the character at the specified position is tab.
-func is_tab(b []byte, i int) bool {
-	return b[i] == '\t'
-}
-
-// Check if the character at the specified position is blank (space or tab).
-func is_blank(b []byte, i int) bool {
-	//return is_space(b, i) || is_tab(b, i)
-	return b[i] == ' ' || b[i] == '\t'
-}
-
-// Check if the character at the specified position is a line break.
-func is_break(b []byte, i int) bool {
-	return (b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
-}
-
-func is_crlf(b []byte, i int) bool {
-	return b[i] == '\r' && b[i+1] == '\n'
-}
-
-// Check if the character is a line break or NUL.
-func is_breakz(b []byte, i int) bool {
-	//return is_break(b, i) || is_z(b, i)
-	return (
-		// is_break:
-		b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
-		// is_z:
-		b[i] == 0)
-}
-
-// Check if the character is a line break, space, or NUL.
-func is_spacez(b []byte, i int) bool {
-	//return is_space(b, i) || is_breakz(b, i)
-	return (
-		// is_space:
-		b[i] == ' ' ||
-		// is_breakz:
-		b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
-		b[i] == 0)
-}
-
-// Check if the character is a line break, space, tab, or NUL.
-func is_blankz(b []byte, i int) bool {
-	//return is_blank(b, i) || is_breakz(b, i)
-	return (
-		// is_blank:
-		b[i] == ' ' || b[i] == '\t' ||
-		// is_breakz:
-		b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
-		b[i] == 0)
-}
-
-// Determine the width of the character.
-func width(b byte) int {
-	// Don't replace these by a switch without first
-	// confirming that it is being inlined.
-	if b&0x80 == 0x00 {
-		return 1
-	}
-	if b&0xE0 == 0xC0 {
-		return 2
-	}
-	if b&0xF0 == 0xE0 {
-		return 3
-	}
-	if b&0xF8 == 0xF0 {
-		return 4
-	}
-	return 0
-
-}

sesh/vendor/modules.txt

@@ -42,6 +42,17 @@ github.com/gdamore/tcell/v2/terminfo/x/xfce
 github.com/gdamore/tcell/v2/terminfo/x/xterm
 github.com/gdamore/tcell/v2/terminfo/x/xterm_kitty
 github.com/gdamore/tcell/v2/terminfo/x/xterm_termite
+# github.com/goccy/go-yaml v1.19.2
+## explicit; go 1.21.0
+github.com/goccy/go-yaml
+github.com/goccy/go-yaml/ast
+github.com/goccy/go-yaml/internal/errors
+github.com/goccy/go-yaml/internal/format
+github.com/goccy/go-yaml/lexer
+github.com/goccy/go-yaml/parser
+github.com/goccy/go-yaml/printer
+github.com/goccy/go-yaml/scanner
+github.com/goccy/go-yaml/token
 # github.com/ktr0731/go-ansisgr v0.1.0
 ## explicit; go 1.19
 github.com/ktr0731/go-ansisgr
@@ -78,6 +89,3 @@ golang.org/x/term
 golang.org/x/text/encoding
 golang.org/x/text/encoding/internal/identifier
 golang.org/x/text/transform
-# gopkg.in/yaml.v3 v3.0.1
-## explicit
-gopkg.in/yaml.v3