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cheat/vendor/github.com/alecthomas/chroma/lexers/y/yaml.go

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package y
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
var YAML = internal.Register(MustNewLexer(
&Config{
Name: "YAML",
Aliases: []string{"yaml"},
Filenames: []string{"*.yaml", "*.yml"},
MimeTypes: []string{"text/x-yaml"},
},
Rules{
"root": {
Include("whitespace"),
{`^---`, Text, nil},
{`[\n?]?\s*- `, Text, nil},
{`#.*$`, Comment, nil},
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{`!![^\s]+`, CommentPreproc, nil},
{`&[^\s]+`, CommentPreproc, nil},
{`\*[^\s]+`, CommentPreproc, nil},
{`^%include\s+[^\n\r]+`, CommentPreproc, nil},
{`([>|+-]\s+)(\s+)((?:(?:.*?$)(?:[\n\r]*?)?)*)`, ByGroups(StringDoc, StringDoc, StringDoc), nil},
Include("key"),
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Include("value"),
{`[?:,\[\]]`, Punctuation, nil},
{`.`, Text, nil},
},
"value": {
{Words(``, `\b`, "true", "false", "null"), KeywordConstant, nil},
{`"(?:\\.|[^"])*"`, StringDouble, nil},
{`'(?:\\.|[^'])*'`, StringSingle, nil},
{`\d\d\d\d-\d\d-\d\d([T ]\d\d:\d\d:\d\d(\.\d+)?(Z|\s+[-+]\d+)?)?`, LiteralDate, nil},
{`\b[+\-]?(0x[\da-f]+|0o[0-7]+|(\d+\.?\d*|\.?\d+)(e[\+\-]?\d+)?|\.inf|\.nan)\b`, Number, nil},
{`\b[\w]+\b`, Text, nil},
},
"key": {
{`"[^"\n].*": `, Keyword, nil},
{`(-)( )([^"\n{]*)(:)( )`, ByGroups(Punctuation, Whitespace, Keyword, Punctuation, Whitespace), nil},
{`([^"\n{]*)(:)( )`, ByGroups(Keyword, Punctuation, Whitespace), nil},
{`([^"\n{]*)(:)(\n)`, ByGroups(Keyword, Punctuation, Whitespace), nil},
},
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"whitespace": {
{`\s+`, Whitespace, nil},
{`\n+`, Whitespace, nil},
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},
},
))