diff options
Diffstat (limited to 'lua/lexers/actionscript.lua')
| -rw-r--r-- | lua/lexers/actionscript.lua | 98 |
1 files changed, 41 insertions, 57 deletions
diff --git a/lua/lexers/actionscript.lua b/lua/lexers/actionscript.lua index e92ab75..24aef11 100644 --- a/lua/lexers/actionscript.lua +++ b/lua/lexers/actionscript.lua @@ -1,75 +1,59 @@ --- Copyright 2006-2017 Mitchell mitchell.att.foicica.com. See LICENSE. +-- Copyright 2006-2022 Mitchell. See LICENSE. -- Actionscript LPeg lexer. -local l = require('lexer') -local token, word_match = l.token, l.word_match -local P, R, S = lpeg.P, lpeg.R, lpeg.S +local lexer = require('lexer') +local token, word_match = lexer.token, lexer.word_match +local P, S = lpeg.P, lpeg.S -local M = {_NAME = 'actionscript'} +local lex = lexer.new('actionscript') -- Whitespace. -local ws = token(l.WHITESPACE, l.space^1) - --- Comments. -local line_comment = '//' * l.nonnewline^0 -local block_comment = '/*' * (l.any - '*/')^0 * P('*/')^-1 -local comment = token(l.COMMENT, line_comment + block_comment) - --- Strings. -local sq_str = l.delimited_range("'", true) -local dq_str = l.delimited_range('"', true) -local ml_str = '<![CDATA[' * (l.any - ']]>')^0 * ']]>' -local string = token(l.STRING, sq_str + dq_str + ml_str) - --- Numbers. -local number = token(l.NUMBER, (l.float + l.integer) * S('LlUuFf')^-2) +lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) -- Keywords. -local keyword = token(l.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', +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' -}) + '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. -local type = token(l.TYPE, word_match{ - 'Array', 'Boolean', 'Color', 'Date', 'Function', 'Key', 'MovieClip', 'Math', - 'Mouse', 'Number', 'Object', 'Selection', 'Sound', 'String', 'XML', 'XMLNode', - 'XMLSocket', +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. -local identifier = token(l.IDENTIFIER, l.word) +lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word)) --- Operators. -local operator = token(l.OPERATOR, S('=!<>+-/*%&|^~.,;?()[]{}')) +-- 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)) -M._rules = { - {'whitespace', ws}, - {'keyword', keyword}, - {'type', type}, - {'identifier', identifier}, - {'string', string}, - {'comment', comment}, - {'number', number}, - {'operator', operator}, -} +-- Numbers. +lex:add_rule('number', token(lexer.NUMBER, lexer.number * S('LlUuFf')^-2)) + +-- Operators. +lex:add_rule('operator', token(lexer.OPERATOR, S('=!<>+-/*%&|^~.,;?()[]{}'))) -M._foldsymbols = { - _patterns = {'[{}]', '/%*', '%*/', '//', '<!%[CDATA%[', '%]%]>'}, - [l.OPERATOR] = {['{'] = 1, ['}'] = -1}, - [l.COMMENT] = { - ['/*'] = 1, ['*/'] = -1, ['//'] = l.fold_line_comments('//') - }, - [l.STRING] = {['<![CDATA['] = 1, [']]>'] = -1} -} +-- Fold points. +lex:add_fold_point(lexer.OPERATOR, '{', '}') +lex:add_fold_point(lexer.COMMENT, '/*', '*/') +lex:add_fold_point(lexer.COMMENT, lexer.fold_consecutive_lines('//')) +lex:add_fold_point(lexer.STRING, '<![CDATA[', ']]>') -return M +return lex |
