lilypond.lua (844B)
- -- Copyright 2006-2024 Robert Gieseke. See LICENSE.
- -- Lilypond LPeg lexer.
- -- TODO Embed Scheme; Notes?, Numbers?
- local lexer = require('lexer')
- local token, word_match = lexer.token, lexer.word_match
- local P, S = lpeg.P, lpeg.S
- local lex = lexer.new('lilypond')
- -- Whitespace.
- lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
- -- Keywords, commands.
- lex:add_rule('keyword', token(lexer.KEYWORD, '\\' * lexer.word))
- -- Identifiers.
- lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
- -- Strings.
- lex:add_rule('string', token(lexer.STRING, lexer.range('"', false, false)))
- -- Comments.
- -- TODO: block comment.
- lex:add_rule('comment', token(lexer.COMMENT, lexer.to_eol('%')))
- -- Operators.
- lex:add_rule('operator', token(lexer.OPERATOR, S("{}'~<>|")))
- lexer.property['scintillua.comment'] = '%'
- return lex