#!/bin/bash

#

# docbook_convertToPdfFromSgml.sh -- This function transforms DocBook

# files which have set the SGML DTD in them.  To produce PDF from

# DocBook SGML DTD, we take the DocBook XML DTD file and change its

# DTD from XML to SGML. Since XML is SGML shoudn't be any problem.

# Once the DTD has been changed from XML to SGML, we use the jw shell

# script to convert the SGML-based DocBook file to PDF.  Customization

# can be achieved through DSL (docbook-style-dsssl-1.79-4.1) shipped

# in this distribution.

#

# Copyright (C) 2009, 2010, 2011 The CentOS Artwork SIG

#

# 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_convertToPdfFromSgml {

    # Print action message.

    cli_printMessage "${FILE}-sgml.pdf" --as-updating-line

    local -a STYLE_TEMPLATE

    local -a STYLE_INSTANCE

    local STYLE_INSTANCE_FINAL=''

    # Define file name of SGML-based file. This is a mere copy of

    # XML-based file, but using the `-sgml.docbook' prefix.

    SRC=$(echo $TEMPLATE | sed -r 's!\.docbook$!-sgml.docbook!')

    # Create SGML-based file as copy of main XML-based DocBook file.

    cp $TEMPLATE $SRC

    # Replace document definition from XML to SGML.

    sed -i -r \

        -e 's!"-//OASIS//DTD DocBook XML!"-//OASIS//DTD DocBook!' \

        -e 's!"http://www\.oasis-open\.org/docbook/xml/([[:digit:]])\.([[:digit:]])/docbookx\.dtd"!"docbook/sgml-dtd-\1.\2-1.0-30.1/docbook.dtd"!' \

        $SRC

    # Prepare style final instance used in transformations.

    ${RENDER_BACKEND}_prepareStyles "${DOCBOOK_STYLES_DIR}/docbook2pdf.dsl"

    # Create PDF format.

    docbook2pdf --dsl ${STYLE_INSTANCE_FINAL} ${SRC} &> /dev/null

    # Remove temporal directory and temporal style instances created.

    rm $SRC

    rm ${STYLE_INSTANCE[*]}

}