1 files changed, 71 insertions, 0 deletions
diff --git a/ksirc/stringparserstate.h b/ksirc/stringparserstate.h
new file mode 100644
index 00000000..cd9220a4
--- /dev/null
+++ b/ksirc/stringparserstate.h
@@ -0,0 +1,71 @@
+#ifndef __stringparserstate_h__
+#define __stringparserstate_h__
+
+// ### optimize me: it's stupid to do a linear search for each
+// atEnd() invocation. This should be done once in the ctor and
+// end() should be set appropriately
+template <typename CharType, typename _SizeType = size_t> 
+class StringParserState
+{
+public:
+    typedef CharType ValueType;
+    typedef const CharType * ConstIterator;
+    typedef _SizeType SizeType;
+    typedef QValueList<ValueType> ValueList;
+
+    StringParserState( ConstIterator start, SizeType maxSteps,
+                       const ValueList &optionalEndItems = ValueList() )
+    {
+	m_begin = start;
+        m_current = start;
+        m_end = start + maxSteps;
+        m_endItems = optionalEndItems;
+    }
+
+    void operator++() { ++m_current; }
+
+    bool atBegin() const
+    {
+	return m_current == m_begin;
+    }
+
+    bool atEnd() const
+    { 
+        if ( m_current >= m_end )
+            return true;
+        return m_endItems.findIndex( currentValue() ) != -1;
+    }
+
+    ConstIterator current() const { return m_current; }
+    ValueType currentValue() const { return *current(); }
+
+    ConstIterator begin() const { return m_begin; }
+    ConstIterator end() const { return m_end; }
+
+    SizeType stepsLeft() const { return m_end - m_current; }
+
+    SizeType advanceTo( ValueType val )
+    {
+	ConstIterator start = m_current;
+	while ( !atEnd() && currentValue() != val )
+	    ++m_current;
+	return m_current - start;
+    }
+
+    SizeType skip( ValueType valueToIgnore )
+    {
+	ConstIterator start = m_current;
+	while ( !atEnd() && currentValue() == valueToIgnore )
+	    ++m_current;
+	return m_current - start;
+    }
+
+private:
+    ConstIterator m_begin;
+    ConstIterator m_current;
+    ConstIterator m_end;
+    ValueList m_endItems;
+};
+
+#endif
+