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diff --git a/src/stlplus/portability/wildcard.hpp b/src/stlplus/portability/wildcard.hpp
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+++ b/src/stlplus/portability/wildcard.hpp
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+#ifndef STLPLUS_WILDCARD
+#define STLPLUS_WILDCARD
+////////////////////////////////////////////////////////////////////////////////
+
+//   Author:    Andy Rushton
+//   Copyright: (c) Southampton University 1999-2004
+//              (c) Andy Rushton           2004-2009
+//   License:   BSD License, see ../docs/license.html
+
+//   This is a portable interface to wildcard matching.
+
+//   The problem:
+//     *  matches any number of characters - this is achieved by matching 1 and seeing if the remainder matches
+//        if not, try 2 characters and see if the remainder matches etc.
+//        this must be recursive, not iterative, so that multiple *s can appear in the same wildcard expression
+//     ?  matches exactly one character so doesn't need the what-if approach
+//     \  escapes special characters such as *, ? and [
+//     [] matches exactly one character in the set - the difficulty is the set can contain ranges, e.g [a-zA-Z0-9]
+//        a set cannot be empty and the ] character can be included by making it the first character
+
+////////////////////////////////////////////////////////////////////////////////
+#include "portability_fixes.hpp"
+#include <string>
+
+namespace stlplus
+{
+
+  // wild = the wildcard expression
+  // match = the string to test against that expression
+  // e.g. wildcard("[a-f]*", "fred") returns true
+  bool wildcard(const std::string& wild, const std::string& match);
+
+}
+
+#endif