diff options
Diffstat (limited to 'lua/lexers/idl.lua')
| -rw-r--r-- | lua/lexers/idl.lua | 88 |
1 files changed, 35 insertions, 53 deletions
diff --git a/lua/lexers/idl.lua b/lua/lexers/idl.lua index a3ce325..9a2250c 100644 --- a/lua/lexers/idl.lua +++ b/lua/lexers/idl.lua @@ -1,68 +1,50 @@ --- Copyright 2006-2017 Mitchell mitchell.att.foicica.com. See LICENSE. +-- Copyright 2006-2022 Mitchell. See LICENSE. -- IDL 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 = 'idl'} +local lex = lexer.new('idl') -- Whitespace. -local ws = token(l.WHITESPACE, l.space^1) +lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) --- Comments. -local line_comment = '//' * l.nonnewline_esc^0 -local block_comment = '/*' * (l.any - '*/')^0 * P('*/')^-1 -local comment = token(l.COMMENT, line_comment + block_comment) +-- 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' +})) --- Strings. -local sq_str = l.delimited_range("'", true) -local dq_str = l.delimited_range('"', true) -local string = token(l.STRING, sq_str + dq_str) +-- 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' +})) --- Numbers. -local number = token(l.NUMBER, l.float + l.integer) +-- Identifiers. +lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word)) --- Preprocessor. -local preproc_word = word_match{ - 'define', 'undef', 'ifdef', 'ifndef', 'if', 'elif', 'else', 'endif', - 'include', 'warning', 'pragma' -} -local preproc = token(l.PREPROCESSOR, - l.starts_line('#') * preproc_word * l.nonnewline^0) +-- Strings. +local sq_str = lexer.range("'", true) +local dq_str = lexer.range('"', true) +lex:add_rule('string', token(lexer.STRING, sq_str + dq_str)) --- Keywords. -local keyword = token(l.KEYWORD, word_match{ - 'abstract', 'attribute', 'case', 'const', 'context', 'custom', 'default', - 'exception', 'enum', 'factory', 'FALSE', 'in', 'inout', 'interface', 'local', - 'module', 'native', 'oneway', 'out', 'private', 'public', 'raises', - 'readonly', 'struct', 'support', 'switch', 'TRUE', 'truncatable', 'typedef', - 'union', 'valuetype' -}) +-- Comments. +local line_comment = lexer.to_eol('//', true) +local block_comment = lexer.range('/*', '*/') +lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment)) --- Types. -local type = token(l.TYPE, word_match{ - 'any', 'boolean', 'char', 'double', 'fixed', 'float', 'long', 'Object', - 'octet', 'sequence', 'short', 'string', 'unsigned', 'ValueBase', 'void', - 'wchar', 'wstring' -}) +-- Numbers. +lex:add_rule('number', token(lexer.NUMBER, lexer.number)) --- Identifiers. -local identifier = token(l.IDENTIFIER, l.word) +-- 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. -local operator = token(l.OPERATOR, S('!<>=+-/*%&|^~.,:;?()[]{}')) - -M._rules = { - {'whitespace', ws}, - {'keyword', keyword}, - {'type', type}, - {'identifier', identifier}, - {'string', string}, - {'comment', comment}, - {'number', number}, - {'preprocessor', preproc}, - {'operator', operator}, -} +lex:add_rule('operator', token(lexer.OPERATOR, S('!<>=+-/*%&|^~.,:;?()[]{}'))) -return M +return lex |
