added: possibility to define a block

changed: in Functions
         Functions are only for user-defined functions now
         (before they could remember a string variable too)
added:   class Vars for variables
         a variable can be a string or an alias to an other function or block
added:   now we can have nested functions calls e.g.:
         [function1 [function2]]
         in the above example an output (stream) from function2 will be passed
         as the first argument to funcion1 (will be passed as a string)
removed: UTF8() method from PatternParser
         now it is treated that when we have only std::string (or char*)
         that this is an UTF-8 string




git-svn-id: svn://ttmath.org/publicrep/ezc/trunk@970 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/item.cpp

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2007-2011, Tomasz Sowa
+ * Copyright (c) 2007-2014, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -161,5 +161,17 @@ Item::~Item()
 
 
 
+void Item::ClearCache()
+{
+	for(size_t f = 0; f < functions.size() ; ++f)
+		functions[f].fun_cache = 0;
+
+	for(size_t i = 0; i < item_tab.size() ; ++i)
+		item_tab[i]->ClearCache();
+}
+
+
+
+
 } // namespace Ezc