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80 lines
3.1 KiB
Go
80 lines
3.1 KiB
Go
package i
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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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// Idris lexer.
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var Idris = internal.Register(MustNewLexer(
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&Config{
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Name: "Idris",
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Aliases: []string{"idris", "idr"},
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Filenames: []string{"*.idr"},
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MimeTypes: []string{"text/x-idris"},
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},
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Rules{
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"root": {
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{`^(\s*)(%lib|link|flag|include|hide|freeze|access|default|logging|dynamic|name|error_handlers|language)`, ByGroups(Text, KeywordReserved), nil},
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{`(\s*)(--(?![!#$%&*+./<=>?@^|_~:\\]).*?)$`, ByGroups(Text, CommentSingle), nil},
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{`(\s*)(\|{3}.*?)$`, ByGroups(Text, CommentSingle), nil},
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{`(\s*)(\{-)`, ByGroups(Text, CommentMultiline), Push("comment")},
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{`^(\s*)([^\s(){}]+)(\s*)(:)(\s*)`, ByGroups(Text, NameFunction, Text, OperatorWord, Text), nil},
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{`\b(case|class|data|default|using|do|else|if|in|infix[lr]?|instance|rewrite|auto|namespace|codata|mutual|private|public|abstract|total|partial|let|proof|of|then|static|where|_|with|pattern|term|syntax|prefix|postulate|parameters|record|dsl|impossible|implicit|tactics|intros|intro|compute|refine|exact|trivial)(?!\')\b`, KeywordReserved, nil},
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{`(import|module)(\s+)`, ByGroups(KeywordReserved, Text), Push("module")},
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{`('')?[A-Z][\w\']*`, KeywordType, nil},
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{`[a-z][\w\']*`, Text, nil},
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{`(<-|::|->|=>|=)`, OperatorWord, nil},
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{`([(){}\[\]:!#$%&*+.\\/<=>?@^|~-]+)`, OperatorWord, nil},
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{`\d+[eE][+-]?\d+`, LiteralNumberFloat, nil},
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{`\d+\.\d+([eE][+-]?\d+)?`, LiteralNumberFloat, nil},
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{`0[xX][\da-fA-F]+`, LiteralNumberHex, nil},
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{`\d+`, LiteralNumberInteger, nil},
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{`'`, LiteralStringChar, Push("character")},
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{`"`, LiteralString, Push("string")},
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{`[^\s(){}]+`, Text, nil},
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{`\s+?`, Text, nil},
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},
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"module": {
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{`\s+`, Text, nil},
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{`([A-Z][\w.]*)(\s+)(\()`, ByGroups(NameNamespace, Text, Punctuation), Push("funclist")},
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{`[A-Z][\w.]*`, NameNamespace, Pop(1)},
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},
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"funclist": {
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{`\s+`, Text, nil},
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{`[A-Z]\w*`, KeywordType, nil},
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{`(_[\w\']+|[a-z][\w\']*)`, NameFunction, nil},
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{`--.*$`, CommentSingle, nil},
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{`\{-`, CommentMultiline, Push("comment")},
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{`,`, Punctuation, nil},
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{`[:!#$%&*+.\\/<=>?@^|~-]+`, Operator, nil},
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{`\(`, Punctuation, Push("funclist", "funclist")},
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{`\)`, Punctuation, Pop(2)},
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},
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"comment": {
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{`[^-{}]+`, CommentMultiline, nil},
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{`\{-`, CommentMultiline, Push()},
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{`-\}`, CommentMultiline, Pop(1)},
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{`[-{}]`, CommentMultiline, nil},
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},
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"character": {
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{`[^\\']`, LiteralStringChar, nil},
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{`\\`, LiteralStringEscape, Push("escape")},
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{`'`, LiteralStringChar, Pop(1)},
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},
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"string": {
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{`[^\\"]+`, LiteralString, nil},
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{`\\`, LiteralStringEscape, Push("escape")},
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{`"`, LiteralString, Pop(1)},
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},
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"escape": {
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{`[abfnrtv"\'&\\]`, LiteralStringEscape, Pop(1)},
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{`\^[][A-Z@^_]`, LiteralStringEscape, Pop(1)},
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{`NUL|SOH|[SE]TX|EOT|ENQ|ACK|BEL|BS|HT|LF|VT|FF|CR|S[OI]|DLE|DC[1-4]|NAK|SYN|ETB|CAN|EM|SUB|ESC|[FGRU]S|SP|DEL`, LiteralStringEscape, Pop(1)},
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{`o[0-7]+`, LiteralStringEscape, Pop(1)},
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{`x[\da-fA-F]+`, LiteralStringEscape, Pop(1)},
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{`\d+`, LiteralStringEscape, Pop(1)},
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{`\s+\\`, LiteralStringEscape, Pop(1)},
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},
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},
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))
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