Added base Mapbase matchers to tier1 so that the response system library can access them

sp/src/public/tier1/mapbase_matchers_base.h

@@ -0,0 +1,58 @@
+//========= Mapbase - https://github.com/mapbase-source/source-sdk-2013 =================
+//
+// Purpose: General matching functions for things like wildcards and !=.
+//
+// $NoKeywords: $
+//=============================================================================
+
+#ifndef MAPBASE_MATCHERS_BASE_H
+#define MAPBASE_MATCHERS_BASE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include <math.h>
+
+#define MAPBASE_MATCHERS 1
+
+// Regular expressions based off of the std library.
+// pszQuery = The regex text.
+// szValue = The value that should be matched.
+bool Matcher_Regex( const char *pszQuery, const char *szValue );
+
+// Compares two strings with support for wildcards or regex. This code is an expanded version of baseentity.cpp's NamesMatch().
+// pszQuery = The value that should have the wildcard.
+// szValue = The value tested against the query.
+// Use Matcher_Match if you want <, !=, etc. as well.
+bool Matcher_NamesMatch( const char *pszQuery, const char *szValue );
+
+// Identical to baseentity.cpp's original NamesMatch().
+// pszQuery = The value that should have the wildcard.
+// szValue = The value tested against the query.
+bool Matcher_NamesMatch_Classic( const char *pszQuery, const char *szValue );
+
+// Identical to Matcher_NamesMatch_Classic(), but either value could use a wildcard.
+// pszQuery = The value that serves as the query. This value can use wildcards.
+// szValue = The value tested against the query. This value can use wildcards as well.
+bool Matcher_NamesMatch_MutualWildcard( const char *pszQuery, const char *szValue );
+
+// Taken from the Response System.
+// Checks if the specified string appears to be a number of some sort.
+static bool AppearsToBeANumber( char const *token )
+{
+	if ( atof( token ) != 0.0f )
+		return true;
+
+	char const *p = token;
+	while ( *p )
+	{
+		if ( *p != '0' )
+			return false;
+
+		p++;
+	}
+
+	return true;
+}
+
+#endif