#!/bin/bash

#

# docbook_prepareStyles.sh -- This function prepares styles' final

# instances used in transformations based on XSL or DSL templates.

# There are translation markers inside the XSL and DSL templates that

# need to be expanded before they can be used for transformations.

# This function creates temporal instances of XSL and DSL templates

# with translation markers expanded inside so as for transformation

# commands (e.g., `xmltproc' or `openjade' through `docbook2pdf') to

# use as style defintion.

#

# 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_prepareStyles {

    local STYLE_TEMPLATE_FILE=''

    local STYLE_TEMPLATE_FILES=$@

    local STYLE_INSTANCE_COMMON=''

    local COUNT=0

    for STYLE_TEMPLATE_FILE in $STYLE_TEMPLATE_FILES;do

        STYLE_TEMPLATE[((++${#STYLE_TEMPLATE[*]}))]="${STYLE_TEMPLATE_FILE}"

        STYLE_INSTANCE[((++${#STYLE_INSTANCE[*]}))]="$(cli_getTemporalFile ${STYLE_TEMPLATE_FILE})"

        # Keep track of array's real index value. Remember, it starts

        # at zero but counting starts at 1 instead. So, substracting 1

        # from counting we have the real index value we need to work

        # with the information stored in the array.

        COUNT=$(( ${#STYLE_INSTANCE[*]} - 1 ))

        # Create style instance from style template.

        cp ${STYLE_TEMPLATE[$COUNT]} ${STYLE_INSTANCE[$COUNT]}

        # Define both final an common style instances based on style

        # templates.

        if [[ $STYLE_TEMPLATE_FILE =~ 'docbook2fo\.xsl$' ]];then

            STYLE_INSTANCE_FINAL=${STYLE_INSTANCE[$COUNT]}

        elif [[ $STYLE_TEMPLATE_FILE =~ 'docbook2pdf\.dsl$' ]];then

            STYLE_INSTANCE_FINAL=${STYLE_INSTANCE[${COUNT}]}

        elif [[ $STYLE_TEMPLATE_FILE =~ 'docbook2xhtml-(chunks|single)\.xsl$' ]];then

            STYLE_INSTANCE_FINAL=${STYLE_INSTANCE[${COUNT}]}

        elif [[ $STYLE_TEMPLATE_FILE =~ 'docbook2xhtml-common\.xsl$' ]];then

            STYLE_INSTANCE_COMMON=${STYLE_INSTANCE[${COUNT}]}

        fi

    done

    # Verify style final instance. This is the file used by

    # transformation command (`xsltproc' or `openjade') to produce the

    # specified output. We cannot continue without it.

    cli_checkFiles -e $STYLE_INSTANCE_FINAL

    # Expand common translation markers in the common style instance,

    # if it exists.

    if [[ -f $STYLE_INSTANCE_COMMON ]];then

        cli_expandTMarkers $STYLE_INSTANCE_COMMON

    fi

    # Expand specific translation markers in final style instance.

    sed -r -i "s!=STYLE_XHTML_COMMON=!${STYLE_INSTANCE_COMMON}!" ${STYLE_INSTANCE_FINAL}

}