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55 lines
1.6 KiB
55 lines
1.6 KiB
4 years ago
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package m
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import (
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. "github.com/alecthomas/chroma" // nolint
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. "github.com/alecthomas/chroma/lexers/b" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Makefile lexer.
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var Makefile = internal.Register(MustNewLexer(
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&Config{
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Name: "Base Makefile",
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Aliases: []string{"make", "makefile", "mf", "bsdmake"},
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Filenames: []string{"*.mak", "*.mk", "Makefile", "makefile", "Makefile.*", "GNUmakefile"},
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MimeTypes: []string{"text/x-makefile"},
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EnsureNL: true,
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},
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Rules{
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"root": {
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{`^(?:[\t ]+.*\n|\n)+`, Using(Bash), nil},
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{`\$[<@$+%?|*]`, Keyword, nil},
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{`\s+`, Text, nil},
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{`#.*?\n`, Comment, nil},
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{`(export)(\s+)(?=[\w${}\t -]+\n)`, ByGroups(Keyword, Text), Push("export")},
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{`export\s+`, Keyword, nil},
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{`([\w${}().-]+)(\s*)([!?:+]?=)([ \t]*)((?:.*\\\n)+|.*\n)`, ByGroups(NameVariable, Text, Operator, Text, Using(Bash)), nil},
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{`(?s)"(\\\\|\\.|[^"\\])*"`, LiteralStringDouble, nil},
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{`(?s)'(\\\\|\\.|[^'\\])*'`, LiteralStringSingle, nil},
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{`([^\n:]+)(:+)([ \t]*)`, ByGroups(NameFunction, Operator, Text), Push("block-header")},
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{`\$\(`, Keyword, Push("expansion")},
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},
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"expansion": {
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{`[^$a-zA-Z_()]+`, Text, nil},
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{`[a-zA-Z_]+`, NameVariable, nil},
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{`\$`, Keyword, nil},
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{`\(`, Keyword, Push()},
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{`\)`, Keyword, Pop(1)},
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},
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"export": {
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{`[\w${}-]+`, NameVariable, nil},
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{`\n`, Text, Pop(1)},
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{`\s+`, Text, nil},
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},
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"block-header": {
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{`[,|]`, Punctuation, nil},
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{`#.*?\n`, Comment, Pop(1)},
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{`\\\n`, Text, nil},
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{`\$\(`, Keyword, Push("expansion")},
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{`[a-zA-Z_]+`, Name, nil},
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{`\n`, Text, Pop(1)},
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{`.`, Text, nil},
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},
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},
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))
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