idl.lua (1743B)
- -- Copyright 2006-2024 Mitchell. See LICENSE.
- -- IDL 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('idl')
- -- Whitespace.
- lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
- -- Keywords.
- lex:add_rule('keyword', token(lexer.KEYWORD, word_match{
- 'abstract', 'attribute', 'case', 'const', 'context', 'custom', 'default', 'enum', 'exception',
- 'factory', 'FALSE', 'in', 'inout', 'interface', 'local', 'module', 'native', 'oneway', 'out',
- 'private', 'public', 'raises', 'readonly', 'struct', 'support', 'switch', 'TRUE', 'truncatable',
- 'typedef', 'union', 'valuetype'
- }))
- -- Types.
- lex:add_rule('type', token(lexer.TYPE, word_match{
- 'any', 'boolean', 'char', 'double', 'fixed', 'float', 'long', 'Object', 'octet', 'sequence',
- 'short', 'string', 'unsigned', 'ValueBase', 'void', 'wchar', 'wstring'
- }))
- -- Identifiers.
- lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
- -- Strings.
- local sq_str = lexer.range("'", true)
- local dq_str = lexer.range('"', true)
- lex:add_rule('string', token(lexer.STRING, sq_str + dq_str))
- -- Comments.
- local line_comment = lexer.to_eol('//', true)
- local block_comment = lexer.range('/*', '*/')
- lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment))
- -- Numbers.
- lex:add_rule('number', token(lexer.NUMBER, lexer.number))
- -- Preprocessor.
- lex:add_rule('preproc', token(lexer.PREPROCESSOR, lexer.starts_line('#') *
- word_match('define undef ifdef ifndef if elif else endif include warning pragma')))
- -- Operators.
- lex:add_rule('operator', token(lexer.OPERATOR, S('!<>=+-/*%&|^~.,:;?()[]{}')))
- lexer.property['scintillua.comment'] = '//'
- return lex