#!/bin/bash

#

# docbook_convertToXhtml.sh -- This function uses DocBook XML as input

# and applies XSL stylesheets to produce a big XHTML files as output.

# The procedure was taken from the documentation of

# `docbook-style-xsl-1.69.1-5.1' package, which says: ---To publish

# HTML from your XML documents, you just need an XSL engine.---.

#

# Copyright (C) 2009-2013 The CentOS Project

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or (at

# your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function docbook_convertToXhtml {

    local -a STYLE_TEMPLATE

    local -a STYLE_INSTANCE

    local STYLE_INSTANCE_FINAL=''

    # Print action message.

    if [[ -f ${FILE}.xhtml ]];then

        cli_printMessage "${FILE}.xhtml" --as-updating-line

    else

        cli_printMessage "${FILE}.xhtml" --as-creating-line

    fi

    # Define absolute path to DocBook source file. This is the

    # repository documentation manual file where DOCTYPE and ENTITY

    # definition lines are set.

    local SRC=${INSTANCE}

    # Define absolute path to PDF target file. This is the final

    # location the PDF file produced as result of DocBook to PDF

    # transformation will be stored in.

    local DST="${FILE}.xhtml"

    # Prepare XSL final instances used in transformations.

    docbook_prepareStyles $(cli_getFilesList \

        ${DOCBOOK_XSL} --pattern='^.*/docbook2xhtml-(single|common)\.xsl$')

    # Transform DocBook XML to XHTML supressing all stderr output.

    xsltproc --output ${DST} ${STYLE_INSTANCE_FINAL} ${SRC} &> /dev/null

    # Remove previous links first to prevent a recursive creation of

    # links.

    if [[ -a $(dirname ${DST})/Css ]];then

        rm $(dirname ${DST})/Css 

    fi

    if [[ -a $(dirname ${DST})/Images ]];then

        rm $(dirname ${DST})/Images

    fi

    # Create `css' and `images' directories. In order to save disk

    # space, these directories are linked (symbolically) to their

    # respective locations inside the working copy. 

    ln -fs ${TCAR_WORKDIR}/Identity/Webenv/Themes/Default/Docbook/1.69.1/Css $(dirname $DST)/Css

    ln -fs ${TCAR_WORKDIR}/Identity/Images/Webenv $(dirname $DST)/Images

    # Remove XSL instance files.

    rm ${STYLE_INSTANCE[*]}

}