change char

liqwang · Oct 28, 2023 · 4f70022 · 4f70022
1 parent ecc4e0c
commit 4f70022
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/phase1/lex.l b/phase1/lex.l
@@ -25,7 +25,7 @@
 %}
 
 %option yylineno
-/*%option debug*/
+%option debug
 
 valid_decimal_int 0|[1-9][0-9]*
 id [_a-zA-Z][_0-9a-zA-Z]*
@@ -58,7 +58,7 @@ else {yylval=strdup("ELSE\n"); return ELSE;}
 while {yylval=strdup("WHILE\n"); return WHILE;}
 return {yylval=strdup("RETURN\n"); return RETURN;}
     /* Because CHAR is 2 Byte, only 1 or 2 hex char is allowed */
-'([^']|\\[xX](0|[1-9a-fA-F][0-9a-fA-F]?))' {asprintf(&yylval,"CHAR: %s\n",yytext); return CHAR;}
+'[^'\\n\\t]*'|\\[xX](0|[1-9a-fA-F][0-9a-fA-F]?) {asprintf(&yylval,"CHAR: %s\n",yytext); return CHAR;}
 '[^']*' {lexical_error(yytext,yylineno); return CHAR;} /*Invalid CHAR: not matched by the above valid CHAR regex will fail to this regex*/
 ";" {yylval=strdup("SEMI\n"); return SEMI;}
 "," {yylval=strdup("COMMA\n"); return COMMA;}