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allow hexadecimal and octal escapes within character constants

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Josh Holtrop 2018-04-11 21:38:58 -04:00
parent 090521a805
commit 5615c5781d
1 changed files with 2 additions and 0 deletions
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src/parser/parser.l
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@ -117,6 +117,8 @@ L?'\\n' (void)'\n'; return TOK_CHAR_CONST;
L?'\\r' (void)'\r'; return TOK_CHAR_CONST; L?'\\r' (void)'\r'; return TOK_CHAR_CONST;
L?'\\t' (void)'\t'; return TOK_CHAR_CONST; L?'\\t' (void)'\t'; return TOK_CHAR_CONST;
L?'\\v' (void)'\v'; return TOK_CHAR_CONST; L?'\\v' (void)'\v'; return TOK_CHAR_CONST;
L?'\\x[0-9A-Fa-f]{2}' return TOK_CHAR_CONST;
L?'\\[0-7]{1,3}' return TOK_CHAR_CONST;
[0-9]+([uU][lL]?[lL]?)? return TOK_INT_CONST; [0-9]+([uU][lL]?[lL]?)? return TOK_INT_CONST;
0[xX][0-9a-fA-F]+([uU][lL]?[lL]?)? return TOK_INT_CONST; 0[xX][0-9a-fA-F]+([uU][lL]?[lL]?)? return TOK_INT_CONST;
([0-9]+\.[0-9]*|\.[0-9]+)([eE][-+]?[0-9]+)?[fFlL]? return TOK_FLOAT_CONST; ([0-9]+\.[0-9]*|\.[0-9]+)([eE][-+]?[0-9]+)?[fFlL]? return TOK_FLOAT_CONST;