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Add NewLazyLexer and MustNewLazyLexer which accept a function that returns the rules for the lexer. This allows us to defer the rules definitions until they're needed. Lexers in a, g, s, and x packages have been updated to use the new lazy lexer.
34 lines
724 B
Go
34 lines
724 B
Go
package d
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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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// Diff lexer.
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var Diff = internal.Register(MustNewLazyLexer(
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&Config{
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Name: "Diff",
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Aliases: []string{"diff", "udiff"},
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EnsureNL: true,
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Filenames: []string{"*.diff", "*.patch"},
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MimeTypes: []string{"text/x-diff", "text/x-patch"},
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},
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diffRules,
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))
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func diffRules() Rules {
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return Rules{
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"root": {
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{` .*\n`, Text, nil},
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{`\+.*\n`, GenericInserted, nil},
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{`-.*\n`, GenericDeleted, nil},
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{`!.*\n`, GenericStrong, nil},
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{`@.*\n`, GenericSubheading, nil},
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{`([Ii]ndex|diff).*\n`, GenericHeading, nil},
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{`=.*\n`, GenericHeading, nil},
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{`.*\n`, Text, nil},
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},
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}
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}
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