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35 lines
709 B
Go
35 lines
709 B
Go
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package b
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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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// Brainfuck lexer.
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var Brainfuck = internal.Register(MustNewLexer(
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&Config{
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Name: "Brainfuck",
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Aliases: []string{"brainfuck", "bf"},
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Filenames: []string{"*.bf", "*.b"},
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MimeTypes: []string{"application/x-brainfuck"},
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},
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Rules{
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"common": {
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{`[.,]+`, NameTag, nil},
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{`[+-]+`, NameBuiltin, nil},
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{`[<>]+`, NameVariable, nil},
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{`[^.,+\-<>\[\]]+`, Comment, nil},
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},
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"root": {
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{`\[`, Keyword, Push("loop")},
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{`\]`, Error, nil},
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Include("common"),
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},
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"loop": {
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{`\[`, Keyword, Push()},
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{`\]`, Keyword, Pop(1)},
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Include("common"),
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},
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},
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))
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