diff options
Diffstat (limited to 'lexlua/ansi_c.lua')
| -rw-r--r-- | lexlua/ansi_c.lua | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/lexlua/ansi_c.lua b/lexlua/ansi_c.lua index ddb59e3a0..b0c646b5c 100644 --- a/lexlua/ansi_c.lua +++ b/lexlua/ansi_c.lua @@ -8,7 +8,8 @@ local P, R, S = lpeg.P, lpeg.R, lpeg.S local lex = lexer.new('ansi_c') -- Whitespace. -lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) +local ws = token(lexer.WHITESPACE, lexer.space^1) +lex:add_rule('whitespace', ws) -- Keywords. lex:add_rule('keyword', token(lexer.KEYWORD, word_match[[ @@ -48,30 +49,26 @@ lex:add_rule('constants', token(lexer.CONSTANT, word_match[[ lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word)) -- Strings. -local sq_str = P('L')^-1 * lexer.delimited_range("'", true) -local dq_str = P('L')^-1 * lexer.delimited_range('"', true) +local sq_str = P('L')^-1 * lexer.range("'", true) +local dq_str = P('L')^-1 * lexer.range('"', true) lex:add_rule('string', token(lexer.STRING, sq_str + dq_str)) -- Comments. -local line_comment = '//' * lexer.nonnewline_esc^0 -local block_comment = '/*' * (lexer.any - '*/')^0 * P('*/')^-1 + - '#if' * S(' \t')^0 * '0' * lexer.space * - (lexer.any - '#endif')^0 * P('#endif')^-1 +local line_comment = lexer.to_eol('//', true) +local block_comment = lexer.range('/*', '*/') + + lexer.range('#if' * S(' \t')^0 * '0' * lexer.space, '#endif') lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment)) -- Numbers. -lex:add_rule('number', token(lexer.NUMBER, lexer.float + lexer.integer)) +lex:add_rule('number', token(lexer.NUMBER, lexer.number)) -- Preprocessor. -local preproc_word = word_match[[ +local include = token(lexer.PREPROCESSOR, '#' * S('\t ')^0 * 'include') * + (ws * token(lexer.STRING, lexer.range('<', '>', true)))^-1 +local preproc = token(lexer.PREPROCESSOR, '#' * S('\t ')^0 * word_match[[ define elif else endif if ifdef ifndef line pragma undef -]] -lex:add_rule('preprocessor', - (token(lexer.PREPROCESSOR, '#' * S('\t ')^0 * preproc_word) + - token(lexer.PREPROCESSOR, '#' * S('\t ')^0 * 'include') * - (token(lexer.WHITESPACE, S('\t ')^1) * - token(lexer.STRING, - lexer.delimited_range('<>', true, true)))^-1)) +]]) +lex:add_rule('preprocessor', include + preproc) -- Operators. lex:add_rule('operator', token(lexer.OPERATOR, S('+-/*%<>~!=^&|?~:;,.()[]{}'))) |
