actionscript.lua (2185B)
- -- Copyright 2006-2024 Mitchell. See LICENSE.
- -- Actionscript 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('actionscript')
- -- Whitespace.
- lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
- -- Keywords.
- lex:add_rule('keyword', token(lexer.KEYWORD, word_match{
- 'break', 'continue', 'delete', 'do', 'else', 'for', 'function', 'if', 'in', 'new', 'on', 'return',
- 'this', 'typeof', 'var', 'void', 'while', 'with', 'NaN', 'Infinity', 'false', 'null', 'true',
- 'undefined',
- -- Reserved for future use.
- 'abstract', 'case', 'catch', 'class', 'const', 'debugger', 'default', 'export', 'extends',
- 'final', 'finally', 'goto', 'implements', 'import', 'instanceof', 'interface', 'native',
- 'package', 'private', 'Void', 'protected', 'public', 'dynamic', 'static', 'super', 'switch',
- 'synchonized', 'throw', 'throws', 'transient', 'try', 'volatile'
- }))
- -- Types.
- lex:add_rule('type', token(lexer.TYPE, word_match{
- 'Array', 'Boolean', 'Color', 'Date', 'Function', 'Key', 'MovieClip', 'Math', 'Mouse', 'Number',
- 'Object', 'Selection', 'Sound', 'String', 'XML', 'XMLNode', 'XMLSocket',
- -- Reserved for future use.
- 'boolean', 'byte', 'char', 'double', 'enum', 'float', 'int', 'long', 'short'
- }))
- -- Identifiers.
- lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
- -- Strings.
- local sq_str = lexer.range("'", true)
- local dq_str = lexer.range('"', true)
- local ml_str = lexer.range('<![CDATA[', ']]>')
- lex:add_rule('string', token(lexer.STRING, sq_str + dq_str + ml_str))
- -- Comments.
- local line_comment = lexer.to_eol('//')
- 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 * S('LlUuFf')^-2))
- -- Operators.
- lex:add_rule('operator', token(lexer.OPERATOR, S('=!<>+-/*%&|^~.,;?()[]{}')))
- -- Fold points.
- lex:add_fold_point(lexer.OPERATOR, '{', '}')
- lex:add_fold_point(lexer.COMMENT, '/*', '*/')
- lex:add_fold_point(lexer.STRING, '<![CDATA[', ']]>')
- lexer.property['scintillua.comment'] = '//'
- return lex