fix mishandling of ^ inside an expression

matyalatte · matyalatte · commit 8617d736d6de · 2024-07-05T00:19:31.000+09:00
kokke/tiny-regex-c/pull/61
diff --git a/src/re.c b/src/re.c
@@ -338,6 +338,7 @@ static int matchone(regex_t p, char c) {
         case NOT_ALPHA:      return !matchalphanum(c);
         case WHITESPACE:     return  matchwhitespace(c);
         case NOT_WHITESPACE: return !matchwhitespace(c);
+        case BEGIN:          return 0;
         default:             return  (p.u.ch == c);
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -338,6 +338,7 @@ static int matchone(regex_t p, char c) {`
`338`	`338`	`case NOT_ALPHA: return !matchalphanum(c);`
`339`	`339`	`case WHITESPACE: return matchwhitespace(c);`
`340`	`340`	`case NOT_WHITESPACE: return !matchwhitespace(c);`
	`341`	`+ case BEGIN: return 0;`
`341`	`342`	`default: return (p.u.ch == c);`
`342`	`343`	`}`
`343`	`344`	`}`