This commit is contained in:
98
vendor/github.com/alecthomas/chroma/lexers/k/kotlin.go
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98
vendor/github.com/alecthomas/chroma/lexers/k/kotlin.go
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package k
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import (
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Kotlin lexer.
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var Kotlin = internal.Register(MustNewLazyLexer(
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&Config{
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Name: "Kotlin",
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Aliases: []string{"kotlin"},
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Filenames: []string{"*.kt"},
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MimeTypes: []string{"text/x-kotlin"},
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DotAll: true,
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},
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kotlinRules,
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))
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func kotlinRules() Rules {
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const kotlinIdentifier = "(?:[_\\p{L}][\\p{L}\\p{N}]*|`@?[_\\p{L}][\\p{L}\\p{N}]+`)"
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return Rules{
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"root": {
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{`^\s*\[.*?\]`, NameAttribute, nil},
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{`[^\S\n]+`, Text, nil},
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{`\\\n`, Text, nil},
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{`//[^\n]*\n?`, CommentSingle, nil},
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{`/[*].*?[*]/`, CommentMultiline, nil},
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{`\n`, Text, nil},
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{`!==|!in|!is|===`, Operator, nil},
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{`%=|&&|\*=|\+\+|\+=|--|-=|->|\.\.|\/=|::|<=|==|>=|!!|!=|\|\||\?[:.]`, Operator, nil},
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{`[~!%^&*()+=|\[\]:;,.<>\/?-]`, Punctuation, nil},
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{`[{}]`, Punctuation, nil},
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{`"""`, LiteralString, Push("rawstring")},
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{`"`, LiteralStringDouble, Push("string")},
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{`(')(\\u[0-9a-fA-F]{4})(')`, ByGroups(LiteralStringChar, LiteralStringEscape, LiteralStringChar), nil},
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{`'\\.'|'[^\\]'`, LiteralStringChar, nil},
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{`0[xX][0-9a-fA-F]+[Uu]?[Ll]?|[0-9]+(\.[0-9]*)?([eE][+-][0-9]+)?[fF]?[Uu]?[Ll]?`, LiteralNumber, nil},
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{`(companion)(\s+)(object)`, ByGroups(Keyword, Text, Keyword), nil},
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{`(class|interface|object)(\s+)`, ByGroups(Keyword, Text), Push("class")},
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{`(package|import)(\s+)`, ByGroups(Keyword, Text), Push("package")},
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{`(val|var)(\s+)`, ByGroups(Keyword, Text), Push("property")},
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{`(fun)(\s+)`, ByGroups(Keyword, Text), Push("function")},
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{`(abstract|actual|annotation|as|as\?|break|by|catch|class|companion|const|constructor|continue|crossinline|data|delegate|do|dynamic|else|enum|expect|external|false|field|file|final|finally|for|fun|get|if|import|in|infix|init|inline|inner|interface|internal|is|it|lateinit|noinline|null|object|open|operator|out|override|package|param|private|property|protected|public|receiver|reified|return|sealed|set|setparam|super|suspend|tailrec|this|throw|true|try|typealias|typeof|val|var|vararg|when|where|while)\b`, Keyword, nil},
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{`@` + kotlinIdentifier, NameDecorator, nil},
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{kotlinIdentifier, Name, nil},
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},
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"package": {
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{`\S+`, NameNamespace, Pop(1)},
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},
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"class": {
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// \x60 is the back tick character (`)
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{`\x60[^\x60]+?\x60`, NameClass, Pop(1)},
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{kotlinIdentifier, NameClass, Pop(1)},
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},
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"property": {
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{`\x60[^\x60]+?\x60`, NameProperty, Pop(1)},
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{kotlinIdentifier, NameProperty, Pop(1)},
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},
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"generics-specification": {
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{`<`, Punctuation, Push("generics-specification")}, // required for generics inside generics e.g. <T : List<Int> >
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{`>`, Punctuation, Pop(1)},
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{`[,:*?]`, Punctuation, nil},
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{`(in|out|reified)`, Keyword, nil},
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{`\x60[^\x60]+?\x60`, NameClass, nil},
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{kotlinIdentifier, NameClass, nil},
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{`\s+`, Text, nil},
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},
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"function": {
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{`<`, Punctuation, Push("generics-specification")},
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{`\x60[^\x60]+?\x60`, NameFunction, Pop(1)},
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{kotlinIdentifier, NameFunction, Pop(1)},
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{`\s+`, Text, nil},
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},
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"rawstring": {
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// raw strings don't allow character escaping
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{`"""`, LiteralString, Pop(1)},
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{`(?:[^$"]+|\"{1,2}[^"])+`, LiteralString, nil},
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Include("string-interpol"),
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// remaining dollar signs are just a string
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{`\$`, LiteralString, nil},
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},
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"string": {
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{`\\[tbnr'"\\\$]`, LiteralStringEscape, nil},
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{`\\u[0-9a-fA-F]{4}`, LiteralStringEscape, nil},
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{`"`, LiteralStringDouble, Pop(1)},
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Include("string-interpol"),
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{`[^\n\\"$]+`, LiteralStringDouble, nil},
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// remaining dollar signs are just a string
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{`\$`, LiteralStringDouble, nil},
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},
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"string-interpol": {
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{`\$` + kotlinIdentifier, LiteralStringInterpol, nil},
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{`\${[^}\n]*}`, LiteralStringInterpol, nil},
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},
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}
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}
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