1 files changed, 228 insertions, 0 deletions
diff --git a/examples/cppunittest/XmlUniformiser.cpp b/examples/cppunittest/XmlUniformiser.cpp
new file mode 100644
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--- /dev/null
+++ b/examples/cppunittest/XmlUniformiser.cpp
@@ -0,0 +1,228 @@
+#include "XmlUniformiser.h"
+
+namespace CppUnitTest
+{
+
+
+/// Asserts that two XML string are equivalent.
+void 
+checkXmlEqual( std::string expectedXml,
+               std::string actualXml )
+{
+  std::string expected = XmlUniformiser( expectedXml ).stripped();
+  std::string actual = XmlUniformiser( actualXml ).stripped();
+  int index =0;
+  while ( index < actual.length()  &&  
+          index < expected.length() )
+  {
+    if ( actual[index] != expected[index] )
+    {
+      CppUnit::OStringStream message;
+      message  <<  "expected xml: "  <<  expected << "\n"
+               <<  "actual xml  : "  <<  actual  <<  "\n"
+               <<  "differ at column: "  <<  index  << "\n"
+               <<  "expected: "  <<  expected.substr(index) << "\n"
+               <<  "but was : "  <<  actual.substr( index );
+      CPPUNIT_FAIL( message.str() );
+    }
+
+    ++index;
+  }
+
+  if ( actual.length() != expected.length() )
+  {
+      CppUnit::OStringStream message;
+      message  <<  "expected: "  <<  expected << "\n"
+               <<  "was     : "  <<  actual  <<  "\n"
+               <<  "differ at column: "  <<  index  << "\n"
+               <<  "expected: "  <<  expected.substr(index) << "\n"
+               <<  "but was : "  <<  actual.substr( index );
+      CPPUNIT_FAIL( message.str() );
+  }
+}
+
+
+
+XmlUniformiser::XmlUniformiser( const std::string &xml ) :
+    m_xml( xml ),
+    m_index( 0 )
+{
+}
+
+
+std::string 
+XmlUniformiser::stripped()
+{
+  while ( isValidIndex() )
+  {
+    skipSpaces();
+    if ( startsWith( "<?" ) )
+      skipProcessed();
+    else if ( startsWith( "<!--" ) )
+      skipComment();
+    else if ( startsWith( "<" ) )
+      copyElement();
+    else
+      copyElementContent();
+  }
+  return m_stripped;
+}
+
+
+void 
+XmlUniformiser::skipSpaces()
+{
+  while ( isSpace() )
+    skipNext();
+}
+
+
+bool 
+XmlUniformiser::isSpace( char c )
+{
+  return c < 33;
+}
+
+
+bool 
+XmlUniformiser::isSpace()
+{
+  return isValidIndex()  &&  isSpace( m_xml[m_index] );
+}
+
+
+bool 
+XmlUniformiser::isValidIndex()
+{
+  return m_index < m_xml.length();
+}
+
+
+void 
+XmlUniformiser::skipNext( int count )
+{
+  while ( count-- > 0 )
+    ++m_index;
+}
+
+
+void 
+XmlUniformiser::copyNext( int count )
+{
+  while ( count-- > 0  &&  isValidIndex() )
+    m_stripped += m_xml[ m_index++ ];
+}
+
+
+bool 
+XmlUniformiser::startsWith( std::string expected )
+{
+  std::string actual = m_xml.substr( m_index, expected.length() );
+  return actual == expected;
+}
+
+
+void 
+XmlUniformiser::skipProcessed()
+{
+  while ( isValidIndex()  &&  !startsWith( "?>" ) )
+    skipNext();
+  if ( isValidIndex() )
+    skipNext( 2 );
+}
+
+
+void 
+XmlUniformiser::skipComment()
+{
+  while ( isValidIndex()  &&  !startsWith( "-->" ) )
+    skipNext();
+  if ( isValidIndex() )
+    skipNext( 3 );
+}
+
+
+void 
+XmlUniformiser::copyElement()
+{
+  copyElementName();
+  copyElementAttributes();
+}
+
+
+void 
+XmlUniformiser::copyElementName()
+{
+  while ( isValidIndex()  &&
+          !( isSpace()  ||  startsWith( ">" ) ) )
+    copyNext();
+}
+
+
+void 
+XmlUniformiser::copyElementAttributes()
+{
+  do
+  {
+    skipSpaces();
+    if ( startsWith( ">" ) )
+      break;
+    m_stripped += ' ';
+
+    copyAttributeName();
+    skipSpaces();
+    if ( startsWith( "=" ) )
+    {
+      copyNext();
+      copyAttributeValue();
+    }
+    else    // attribute should always be valued, ne ?
+      m_stripped += ' ';
+  }
+  while ( isValidIndex() );
+  copyNext();
+}
+
+
+void 
+XmlUniformiser::copyAttributeName()
+{
+  while ( isValidIndex()  &&  !isEndOfAttributeName() )
+    copyNext();
+}
+
+
+bool 
+XmlUniformiser::isEndOfAttributeName()
+{
+  return isSpace()  ||  startsWith( ">" )  ||  startsWith( "=" );
+}
+
+
+void 
+XmlUniformiser::copyAttributeValue()
+{
+  skipSpaces();
+  copyUntilDoubleQuote();
+  copyUntilDoubleQuote();
+}
+
+
+void 
+XmlUniformiser::copyUntilDoubleQuote()
+{
+  while ( isValidIndex()  &&  !startsWith("\"") )
+    copyNext();
+  copyNext();   // '"'
+}
+
+
+void 
+XmlUniformiser::copyElementContent()
+{
+  while ( isValidIndex()  &&  !startsWith( "<" ) )
+    copyNext();
+}
+
+
+}  // namespace CppUnitTest