ENH: Create cmXMLSafe to help escapes in XML

This class provides easy syntax to efficiently insert blocks of data
into XML documents with proper escapes.  It replaces the old
cmCTest::MakeXMLSafe and cmSystemTools::MakeXMLSafe methods which
allocated extra memory instead of directly streaming the data.

1 files changed, 49 insertions, 0 deletions

diff --git a/Source/cmXMLSafe.h b/Source/cmXMLSafe.h
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+++ b/Source/cmXMLSafe.h
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+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmXMLSafe_h
+#define cmXMLSafe_h
+
+#include <cmsys/stl/string>
+#include <cmsys/ios/iosfwd>
+
+/** \class cmXMLSafe
+ * \brief Write strings to XML with proper escapes
+ */
+class cmXMLSafe
+{
+public:
+  /** Construct with the data to be written.  This assumes the data
+      will exist for the duration of this object's life.  */
+  cmXMLSafe(const char* s);
+  cmXMLSafe(cmsys_stl::string const& str);
+
+  /** Specify whether to escape quotes too.  This is needed when
+      writing the content of an attribute value.  By default quotes
+      are escaped.  */
+  cmXMLSafe& Quotes(bool b = true);
+
+  /** Get the escaped data as a string.  */
+  cmsys_stl::string str();
+private:
+  char const* Data;
+  unsigned long Size;
+  bool DoQuotes;
+  friend cmsys_ios::ostream& operator<<(cmsys_ios::ostream&,
+                                        cmXMLSafe const&);
+};
+
+#endif