From 370e5b942513abd93cbd2d486a0627ccb47267af Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 1 Mar 2010 08:47:48 -0500
Subject: [PATCH] Documentation: Test XHTML compliance

Use xmllint to validate our generated HTML documentation.
See issue #10338.
---
 Utilities/CMakeLists.txt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Utilities/CMakeLists.txt b/Utilities/CMakeLists.txt
index 24f735b73..ecae7b0c9 100644
--- a/Utilities/CMakeLists.txt
+++ b/Utilities/CMakeLists.txt
@@ -129,3 +129,17 @@ INSTALL_FILES(${CMAKE_DOC_DIR} FILES ${HTML_FILES} ${TEXT_FILES})
 
 # Drive documentation generation.
 ADD_CUSTOM_TARGET(documentation ALL DEPENDS ${DOC_FILES} ${CMake_BINARY_DIR}/Docs/cmake.txt )
+
+# Documentation testing.
+if(BUILD_TESTING)
+  find_package(LibXml2 QUIET)
+  if(NOT DEFINED LIBXML2_XMLLINT_EXECUTABLE)
+    find_program(LIBXML2_XMLLINT_EXECUTABLE xmllint)
+  endif()
+  mark_as_advanced(LIBXML2_XMLLINT_EXECUTABLE)
+  if(LIBXML2_XMLLINT_EXECUTABLE)
+    add_test(CMake.HTML
+      ${LIBXML2_XMLLINT_EXECUTABLE} --valid --noout ${HTML_FILES}
+      )
+  endif()
+endif()