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#!/bin/bash
#
# render_checkAbsolutePaths.sh -- This function retrives absolute
# files and checks their existence. In order for design templates to
# point different artistic motifs, design templates make use of
# external files that point to specific artistic motif background
# images. If such external files doesn't exist, print a message and
# stop script execution.  We cannot continue without background
# information.
#
# Copyright (C) 2009-2011 Alain Reguera Delgado
# 
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA.
# 
# ----------------------------------------------------------------------
# $Id$
# ----------------------------------------------------------------------

function render_checkAbsolutePaths {

    local FILE=''
    local ABSPATHS=''

    # Define absolute path of file we need to retrive absolute paths
    # from.
    FILE="$1"

    # Verify existence of file we need to retrive absolute paths from.
    cli_checkFiles $FILE 'f'

    # Retrive absolute paths from file.
    ABSPATHS=$(egrep '="/[a-zA-Z0-9_./-]+" ' $FILE \
        | sed -r "s/ /\n/g" | egrep '(sodipodi:absref|xlink:href)=' \
        | sed -r "s/.+=\"(\/.+)\"/\1/" | sort | uniq)

    # Verify absolute paths retrived from file.
    for FILE in $ABSPATHS;do
        cli_checkFiles $FILE
    done

}