moved case insensitive comparison utility functions into CString

from CHTTPProtocol.

base/CString.cpp

@@ -0,0 +1,47 @@
+#include "CString.h"
+#include <ctype.h>
+#include <algorithm>
+
+//
+// CStringUtil::CaselessCmp
+//
+
+bool					CStringUtil::CaselessCmp::cmpEqual(
+								const CString::value_type& a,
+								const CString::value_type& b)
+{
+	// FIXME -- use std::tolower
+	return tolower(a) == tolower(b);
+}
+
+bool					CStringUtil::CaselessCmp::cmpLess(
+								const CString::value_type& a,
+								const CString::value_type& b)
+{
+	// FIXME -- use std::tolower
+	return tolower(a) < tolower(b);
+}
+
+bool					CStringUtil::CaselessCmp::less(
+								const CString& a,
+								const CString& b)
+{
+	return std::lexicographical_compare(
+								a.begin(), a.end(),
+								b.begin(), b.end(),
+								&CStringUtil::CaselessCmp::cmpLess);
+}
+
+bool					CStringUtil::CaselessCmp::equal(
+								const CString& a,
+								const CString& b)
+{
+	return !(less(a, b) || less(b, a));
+}
+
+bool					CStringUtil::CaselessCmp::operator()(
+								const CString& a,
+								const CString& b) const
+{
+	return less(a, b);
+}

base/CString.h

@@ -44,6 +44,20 @@ public:
 								_Myt(_f, _l CSTRING_ALLOC2) { }
 };
 
+class CStringUtil {
+public:
+	class CaselessCmp {
+	  public:
+		bool			operator()(const CString&, const CString&) const;
+		static bool		less(const CString&, const CString&);
+		static bool		equal(const CString&, const CString&);
+		static bool		cmpLess(const CString::value_type&,
+								const CString::value_type&);
+		static bool		cmpEqual(const CString::value_type&,
+								const CString::value_type&);
+	};
+};
+
 #if defined(_MSC_VER)
 #pragma warning(pop)
 #endif

base/Makefile

@@ -16,6 +16,7 @@ CXXFILES = 				\
 	CLog.cpp			\
 	CFunctionJob.cpp		\
 	CStopwatch.cpp			\
+	CString.cpp			\
 	$(NULL)
 
 targets: $(LIBTARGET)

base/base.dsp

@@ -99,6 +99,10 @@ SOURCE=.\CStopwatch.cpp
 # End Source File
 # Begin Source File
 
+SOURCE=.\CString.cpp
+# End Source File
+# Begin Source File
+
 SOURCE=.\XBase.cpp
 # End Source File
 # End Group