PIIODevice registration dramatically optimization

libs/main/core/piconstchars.cpp

@@ -48,6 +48,18 @@
 //! \}
 
 
+bool PIConstChars::startsWith(const PIConstChars & str) const {
+	if (size() < str.size()) return false;
+	return str == left(str.size());
+}
+
+
+bool PIConstChars::endsWith(const PIConstChars & str) const {
+	if (size() < str.size()) return false;
+	return str == right(str.size());
+}
+
+
 PIConstChars PIConstChars::mid(const int start, const int len) const {
 	int s = start, l = len;
 	if (l == 0 || s >= (int)size() || isEmpty()) return PIConstChars("");