git-svn-id: svn://db.shs.com.ru/pip@592 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src_main/core/pistring.cpp

@@ -697,6 +697,43 @@ int PIString::findCWord(const PIString & word, const int start) const {
 }
 
 
+int PIString::findRange(const PIChar & start, const PIChar & end, const PIChar & shield, const int start_index, int * len) const {
+	if (len) *len = 0;
+	bool trim_ = (start != ' ' && start != '\t' && start != '\n' && start != '\r'), eq = (start == end);
+	int sz = size_s(), ls = -1, le = -1, cnt = 0;
+	for (int i = start_index; i < sz; ++i) {
+		PIChar c = at(i);
+		if (c == shield) {++i; continue;}
+		if (trim_) {
+			if (c == ' ' || c == '\t' || c == '\n' || c == '\r')
+				continue;
+			trim_ = false;
+		}
+		if (eq) {
+			if (c == start) {
+				if (cnt == 0) ls = i;
+				else {le = i; cnt = 0; break;}
+				cnt++;
+			}
+		} else {
+			if (c == start) {
+				if (cnt == 0) ls = i;
+				cnt++;
+			}
+			if (c == end) {
+				cnt--;
+				if (cnt == 0) le = i;
+			}
+		}
+		if (cnt <= 0) break;
+	}
+	//piCout << ls << le << cnt;
+	if (le < ls || ls < 0 || le < 0 || cnt != 0) return -1;
+	if (len) *len = le - ls - 1;
+	return ls + 1;
+}
+
+
 bool PIString::startsWith(const PIString & str) const {
 	if (size() < str.size()) return false;
 	return str == left(str.size());