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add octal escape in string

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This commit is contained in:
Josh Holtrop 2018-04-11 21:35:03 -04:00
parent 81614c41ab
commit 3170f0870c
1 changed files with 8 additions and 1 deletions
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9
src/parser/parser.l
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@ -137,7 +137,14 @@ L?'\\v' (void)'\v'; return TOK_CHAR_CONST;
\\x[0-9A-Fa-f]{2} {
/* hexadecimal escape code */
unsigned int val;
(void) sscanf(yytext + 2, "%x", &val);
(void)sscanf(yytext + 1, "%x", &val);
char v[2] = {(char)val, '\0'};
String_concat(build_string, v);
}
\\[0-7][0-7]?[0-7]? {
/* octal escape code */
unsigned int val;
(void)sscanf(yytext + 1, "%o", &val);
char v[2] = {(char)val, '\0'};
String_concat(build_string, v);
}