48 lines
1.7 KiB
Go
48 lines
1.7 KiB
Go
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package lexers
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import (
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. "github.com/alecthomas/chroma" // nolint
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)
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// Awk lexer.
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var Awk = Register(MustNewLexer(
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&Config{
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Name: "Awk",
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Aliases: []string{"awk", "gawk", "mawk", "nawk"},
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Filenames: []string{"*.awk"},
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MimeTypes: []string{"application/x-awk"},
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},
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Rules{
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"commentsandwhitespace": {
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{`\s+`, Text, nil},
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{`#.*$`, CommentSingle, nil},
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},
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"slashstartsregex": {
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Include("commentsandwhitespace"),
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{`/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/\B`, LiteralStringRegex, Pop(1)},
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{`(?=/)`, Text, Push("#pop", "badregex")},
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Default(Pop(1)),
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},
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"badregex": {
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{`\n`, Text, Pop(1)},
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},
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"root": {
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{`^(?=\s|/)`, Text, Push("slashstartsregex")},
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Include("commentsandwhitespace"),
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{`\+\+|--|\|\||&&|in\b|\$|!?~|(\*\*|[-<>+*%\^/!=|])=?`, Operator, Push("slashstartsregex")},
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{`[{(\[;,]`, Punctuation, Push("slashstartsregex")},
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{`[})\].]`, Punctuation, nil},
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{`(break|continue|do|while|exit|for|if|else|return)\b`, Keyword, Push("slashstartsregex")},
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{`function\b`, KeywordDeclaration, Push("slashstartsregex")},
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{`(atan2|cos|exp|int|log|rand|sin|sqrt|srand|gensub|gsub|index|length|match|split|sprintf|sub|substr|tolower|toupper|close|fflush|getline|next|nextfile|print|printf|strftime|systime|delete|system)\b`, KeywordReserved, nil},
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{`(ARGC|ARGIND|ARGV|BEGIN|CONVFMT|ENVIRON|END|ERRNO|FIELDWIDTHS|FILENAME|FNR|FS|IGNORECASE|NF|NR|OFMT|OFS|ORFS|RLENGTH|RS|RSTART|RT|SUBSEP)\b`, NameBuiltin, nil},
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{`[$a-zA-Z_]\w*`, NameOther, nil},
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{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
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{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
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{`[0-9]+`, LiteralNumberInteger, nil},
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{`"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
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{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
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},
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},
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))
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