Merge commit '4ebe6417a5fce5f0994fc0c31bebf732be96a07c' as 'boost'

boost/tools/build/example/customization/codegen.cpp

@@ -0,0 +1,36 @@
+// (C) Copyright Vladimir Prus, 2003
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// Please see 'usage.verbatim' file for usage notes.
+
+#include <iostream>
+#include <string>
+#include <cstring>
+using std::cout;
+using std::string;
+using std::strlen;
+
+extern const char class_template[];
+extern const char usage[];
+
+int main(int ac, char* av[])
+{
+    if (av[1]) {        
+
+        string class_name = av[1];
+        string s = class_template;
+        
+        string::size_type n;
+        while((n = s.find("%class_name%")) != string::npos) {
+            s.replace(n, strlen("%class_name%"), class_name);
+        }
+        std::cout << "Output is:\n";
+        std::cout << s << "\n";        
+        return 0;
+    } else {
+        std::cout << usage << "\n";
+        return 1;
+    }
+}