ini.lua (1128B)
- -- Copyright 2006-2024 Mitchell. See LICENSE.
- -- Ini LPeg lexer.
- local lexer = require('lexer')
- local token, word_match = lexer.token, lexer.word_match
- local P, S = lpeg.P, lpeg.S
- local lex = lexer.new('ini')
- -- Whitespace.
- lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
- -- Keywords.
- lex:add_rule('keyword', token(lexer.KEYWORD, word_match('true false on off yes no')))
- -- Identifiers.
- lex:add_rule('identifier', token(lexer.IDENTIFIER, (lexer.alpha + '_') * (lexer.alnum + S('_.'))^0))
- -- Strings.
- local sq_str = lexer.range("'")
- local dq_str = lexer.range('"')
- lex:add_rule('string', token(lexer.STRING, sq_str + dq_str))
- -- Labels.
- lex:add_rule('label', token(lexer.LABEL, lexer.range('[', ']', true)))
- -- Comments.
- lex:add_rule('comment', token(lexer.COMMENT, lexer.to_eol(lexer.starts_line(S(';#')))))
- -- Numbers.
- local integer = S('+-')^-1 * (lexer.hex_num + lexer.oct_num_('_') + lexer.dec_num_('_'))
- lex:add_rule('number', token(lexer.NUMBER, lexer.float + integer))
- -- Operators.
- lex:add_rule('operator', token(lexer.OPERATOR, '='))
- lexer.property['scintillua.comment'] = '#'
- return lex