#!/bin/bash

#

# svg_checkColorFormats.sh -- This function verifies formats of colors

# (i.e., the way color information is specified).

#

# Copyright (C) 2009, 2010, 2011, 2012 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 svg_checkColorFormats {

    # Define short options.

    local ARGSS=''

    # Define long options.

    local ARGSL='format:'

    # Initialize pattern used for color sanitation.

    local PATTERN='^#[0-9a-f]{6}$'

    # Initialize arguments with an empty value and set it as local

    # variable to this function scope. Doing this is very important to

    # avoid any clash with higher execution environments.

    local ARGUMENTS=''

    # Prepare ARGUMENTS variable for getopt.

    cli_parseArgumentsReDef "$@"

    # Redefine ARGUMENTS using getopt(1) command parser.

    cli_parseArguments

    # Redefine positional parameters using ARGUMENTS variable.

    eval set -- "$ARGUMENTS"

    # Look for options passed through positional parameters.

    while true;do

        case "$1" in

            --format )

                case "$2" in

                    rrggbb|*)

                        PATTERN='^#[0-9a-f]{6}$'

                        ;;

                esac

                shift 2

                ;;

            -- )

                shift 1

                break

                ;;

        esac

    done

    # Define the location we want to apply verifications to.

    local COLOR=''

    local COLORS="$@"

    # Loop through colors and perform format verification as specified

    # by pattern.

    for COLOR in $COLORS;do

        if [[ ! $COLOR =~ $PATTERN ]];then

            cli_printMessage "`eval_gettext "The \\\"\\\$COLOR\\\" string is not a valid color code."`" --as-error-line

        fi

    done

}