diff options
Diffstat (limited to 'dtc-lexer.l')
| -rw-r--r-- | dtc-lexer.l | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/dtc-lexer.l b/dtc-lexer.l index ba5d150..0821bde 100644 --- a/dtc-lexer.l +++ b/dtc-lexer.l @@ -167,9 +167,23 @@ static void lexical_error(const char *fmt, ...); } <*>{CHAR_LITERAL} { - yytext[yyleng-1] = '\0'; - yylval.literal = xstrdup(yytext+1); - DPRINT("Character literal: %s\n", yylval.literal); + struct data d; + DPRINT("Character literal: %s\n", yytext); + + d = data_copy_escape_string(yytext+1, yyleng-2); + if (d.len == 1) { + lexical_error("Empty character literal"); + yylval.integer = 0; + return DT_CHAR_LITERAL; + } + + yylval.integer = (unsigned char)d.val[0]; + + if (d.len > 2) + lexical_error("Character literal has %d" + " characters instead of 1", + d.len - 1); + return DT_CHAR_LITERAL; } |