#!/bin/bash

######################################################################

#

#   camel.sh -- Print greeting messages in camel-case (e.g., "HeLlO,

#   WoRlD!").  The output is printed out one character per line. This

#   might not have sense but it helps to describe how execution of

#   sibling modules work. Notice that, when printing final output,

#   punctuation marks doesn't count for formating. 

#

#   Written by:

#   * Alain Reguera Delgado <al@centos.org.cu>, 2013

#

# Copyright (C) 2009-2013 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.

#

######################################################################

function camel {

    local GREETING_CAMEL=1

    local GREETING_OFFSET=0

    local GREETING_CHARS=${#HELLO_WORLD}

    local GREETING_MESSAGE=${HELLO_WORLD}

    while [[ ${GREETING_OFFSET} -lt ${GREETING_CHARS} ]]; do

        local HELLO_WORLD=${GREETING_MESSAGE:${GREETING_OFFSET}:1}

        if [[ ${GREETING_MESSAGE:${GREETING_OFFSET}:1} =~ '[[:alpha:]]' ]];then

            if [[ ${GREETING_CAMEL} -eq 1 ]];then

                tcar_setModuleEnvironment -m 'upper' -t 'sibling'

                GREETING_CAMEL=0

            else

                tcar_setModuleEnvironment -m 'lower' -t 'sibling'

                GREETING_CAMEL=1

            fi

        else

            if [[ ${GREETING_MESSAGE:${GREETING_OFFSET}:1} =~ ' ' ]];then

                HELLO_WORLD='·'

            fi

            tcar_printMessage "${HELLO_WORLD}" --as-stdout-line

        fi

        GREETING_OFFSET=$(( ${GREETING_OFFSET} + 1 ))

    done

}