65 lines
2.2 KiB
Go
65 lines
2.2 KiB
Go
package lexers
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import (
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. "github.com/alecthomas/chroma" // nolint
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)
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// Fish lexer.
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var Fish = Register(MustNewLexer(
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&Config{
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Name: "Fish",
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Aliases: []string{"fish", "fishshell"},
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Filenames: []string{"*.fish", "*.load"},
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MimeTypes: []string{"application/x-fish"},
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},
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Rules{
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"root": {
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Include("basic"),
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Include("data"),
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Include("interp"),
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},
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"interp": {
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{`\$\(\(`, Keyword, Push("math")},
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{`\(`, Keyword, Push("paren")},
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{`\$#?(\w+|.)`, NameVariable, nil},
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},
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"basic": {
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{`\b(begin|end|if|else|while|break|for|in|return|function|block|case|continue|switch|not|and|or|set|echo|exit|pwd|true|false|cd|count|test)(\s*)\b`, ByGroups(Keyword, Text), nil},
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{`\b(alias|bg|bind|breakpoint|builtin|command|commandline|complete|contains|dirh|dirs|emit|eval|exec|fg|fish|fish_config|fish_indent|fish_pager|fish_prompt|fish_right_prompt|fish_update_completions|fishd|funced|funcsave|functions|help|history|isatty|jobs|math|mimedb|nextd|open|popd|prevd|psub|pushd|random|read|set_color|source|status|trap|type|ulimit|umask|vared|fc|getopts|hash|kill|printf|time|wait)\s*\b(?!\.)`, NameBuiltin, nil},
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{`#.*\n`, Comment, nil},
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{`\\[\w\W]`, LiteralStringEscape, nil},
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{`(\b\w+)(\s*)(=)`, ByGroups(NameVariable, Text, Operator), nil},
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{`[\[\]()=]`, Operator, nil},
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{`<<-?\s*(\'?)\\?(\w+)[\w\W]+?\2`, LiteralString, nil},
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},
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"data": {
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{`(?s)\$?"(\\\\|\\[0-7]+|\\.|[^"\\$])*"`, LiteralStringDouble, nil},
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{`"`, LiteralStringDouble, Push("string")},
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{`(?s)\$'(\\\\|\\[0-7]+|\\.|[^'\\])*'`, LiteralStringSingle, nil},
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{`(?s)'.*?'`, LiteralStringSingle, nil},
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{`;`, Punctuation, nil},
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{`&|\||\^|<|>`, Operator, nil},
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{`\s+`, Text, nil},
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{`\d+(?= |\Z)`, LiteralNumber, nil},
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{"[^=\\s\\[\\]{}()$\"\\'`\\\\<&|;]+", Text, nil},
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},
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"string": {
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{`"`, LiteralStringDouble, Pop(1)},
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{`(?s)(\\\\|\\[0-7]+|\\.|[^"\\$])+`, LiteralStringDouble, nil},
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Include("interp"),
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},
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"paren": {
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{`\)`, Keyword, Pop(1)},
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Include("root"),
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},
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"math": {
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{`\)\)`, Keyword, Pop(1)},
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{`[-+*/%^|&]|\*\*|\|\|`, Operator, nil},
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{`\d+#\d+`, LiteralNumber, nil},
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{`\d+#(?! )`, LiteralNumber, nil},
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{`\d+`, LiteralNumber, nil},
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Include("root"),
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},
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},
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))
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