version 4.2.0

move toStdFunction() to pibase.h
refactor PIParseHelper, now it much more abstract and useful
fix PIIODevice::createFromFullPath() when whitespaces at start or end are presence
PIStreamPacker add events for start and end packet receive
PIClientServer::ClientBase add virtual methods for start and end packet receive. also one can enable diagnostics with enableDiagnostics() method
PICout now call flush() on each end of output
add PIString::entries(const PIString & str)

libs/main/text/pistring.h

@@ -1271,6 +1271,16 @@ public:
 	//! piCout << PIString(".str.0").entries("0"); // 1
 	//! \endcode
 	int entries(const PIChar c) const;
+	int entries(char c) const { return entries(PIChar(c)); }
+
+	//! \~english Returns number of occurrences of string "str".
+	//! \~russian Возвращает число вхождений строк "str".
+	//! \~\details
+	//! \~\code
+	//! piCout << PIString("hello locale").entries("lo"); // 2
+	//! piCout << PIString("hello locale").entries("lo lo"); // 1
+	//! \endcode
+	int entries(const PIString & str) const;
 
 	//! \~english Returns if string starts with "c".
 	//! \~russian Возвращает начинается ли строка с "c".