# Try to find DocBook XSL stylesheet

# Once done, it will define:

#

# DOCBOOKXSL_FOUND - system has the required DocBook XML DTDs

# DOCBOOKXSL_DIR - the directory containing the stylesheets

# used to process DocBook XML

# Copyright (c) 2010, Luigi Toscano, <luigi.toscano@tiscali.it>

#

# Redistribution and use is allowed according to the terms of the BSD license.

# For details see the accompanying COPYING-CMAKE-SCRIPTS file.

set (STYLESHEET_PATH_LIST

    share/xml/docbook/stylesheet/docbook-xsl

    share/xml/docbook/xsl-stylesheets

    share/sgml/docbook/xsl-stylesheets

    share/xml/docbook/stylesheet/nwalsh/current

    share/xml/docbook/stylesheet/nwalsh

    share/xsl/docbook

    share/xsl/docbook-xsl

)

find_path (DOCBOOKXSL_DIR lib/lib.xsl

   PATHS ${CMAKE_SYSTEM_PREFIX_PATH}

   PATH_SUFFIXES ${STYLESHEET_PATH_LIST}

)

if (NOT DOCBOOKXSL_DIR)

   # hacks for systems that put the version in the stylesheet dirs

   set (STYLESHEET_PATH_LIST)

   foreach (STYLESHEET_PREFIX_ITER ${CMAKE_SYSTEM_PREFIX_PATH})

      file(GLOB STYLESHEET_SUFFIX_ITER RELATIVE ${STYLESHEET_PREFIX_ITER}

           ${STYLESHEET_PREFIX_ITER}/share/xml/docbook/xsl-stylesheets-*

      )

      if (STYLESHEET_SUFFIX_ITER)

         list (APPEND STYLESHEET_PATH_LIST ${STYLESHEET_SUFFIX_ITER})

      endif ()

   endforeach ()

   find_path (DOCBOOKXSL_DIR VERSION

      PATHS ${CMAKE_SYSTEM_PREFIX_PATH}

      PATH_SUFFIXES ${STYLESHEET_PATH_LIST}

   )

endif (NOT DOCBOOKXSL_DIR)

include(FindPackageHandleStandardArgs)

find_package_handle_standard_args (DocBookXSL

                                   "Could NOT find DocBook XSL stylesheets"

                                   DOCBOOKXSL_DIR)

mark_as_advanced (DOCBOOKXSL_DIR)