Removed temporary pointers

src/modal.c

@@ -162,66 +162,51 @@ static char *
 compile_rule(Rule *r, int id, char *src)
 {
 	int wrapped, reg;
-	char c, *cap, *s2;
+	char c, *cap;
 	r->id = id, r->ptr = 0;
-
-	/* left ==================================== */
-
+	/* phase: left */
 	r->a = r->b = dict_;
-	s2 = src;
-
-	while((c = *s2) && c == ' ') s2++;
-	if(c == ')' || (c == '<' && s2[1] == '>')) {
+	while((c = *src) && c == ' ') src++;
+	if(c == ')' || (c == '<' && src[1] == '>')) {
 		*dict_++ = 0;
-		return s2;
+		return src;
 	}
-
-	cap = walk(s2);
+	cap = walk(src);
 	wrapped = c == '(';
-	if(wrapped) s2++, cap--;
-	while(s2 < cap) {
-		if(*s2 == '?') {
-			*dict_++ = *s2++;
-			reg = find_register(r, *s2);
-			if(reg < 0 && *s2 != '(')
-				r->key[r->ptr] = *s2, reg = r->ptr++;
+	if(wrapped) src++, cap--;
+	while(src < cap) {
+		if(*src == '?') {
+			*dict_++ = *src++;
+			reg = find_register(r, *src);
+			if(reg < 0 && *src != '(')
+				r->key[r->ptr] = *src, reg = r->ptr++;
 			*dict_++ = '0' + reg;
 		} else
-			*dict_++ = *s2++;
+			*dict_++ = *src++;
 	}
-	s2 += wrapped;
-
+	src += wrapped;
 	*dict_++ = 0;
-	src = s2;
-
-	/* right ==================================== */
-
+	/* phase: right */
 	r->b = dict_;
-	s2 = src;
-
-	while((c = *s2) && c == ' ') s2++;
-	if(c == ')' || (c == '<' && s2[1] == '>')) {
+	while((c = *src) && c == ' ') src++;
+	if(c == ')' || (c == '<' && src[1] == '>')) {
 		*dict_++ = 0;
-		return s2;
+		return src;
 	}
-
-	cap = walk(s2);
+	cap = walk(src);
 	wrapped = c == '(';
-	if(wrapped) s2++, cap--;
-	while(s2 < cap) {
-		if(*s2 == '?') {
-			*dict_++ = *s2++;
-			reg = find_register(r, *s2);
-			*dict_++ = reg >= 0 ? ('0' + reg) : *s2;
-			s2++;
+	if(wrapped) src++, cap--;
+	while(src < cap) {
+		if(*src == '?') {
+			*dict_++ = *src++;
+			reg = find_register(r, *src);
+			*dict_++ = reg >= 0 ? ('0' + reg) : *src;
+			src++;
 		} else
-			*dict_++ = *s2++;
+			*dict_++ = *src++;
 	}
-	s2 += wrapped;
-
+	src += wrapped;
 	*dict_++ = 0;
-	src = s2;
-
 	return src;
 }