#!/bin/sh
#------------------------------------------------------------------------------
# /usr/local/bin/colecho - color support for echo command
#
# Copyright (c) 2004 Frank Meyer <frank@eisfair(dot)org>
#
# Creation:    25.07.2004 fm
# Last update: $Id$
#
# 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.
#----------------------------------------------------------------------------

# fm: only echo colors on a tty
if /usr/bin/tty <&1 >/dev/null 2>&1
then
    tty=true
else
    tty=false
fi

opt=''

while [ 1 ]
do
    case "$1"
    in
        -n)
            opt='-n'
            shift
            ;;
        -tty)
            tty=true
            shift
            ;;
        *)
            break
            ;;
    esac
done


# Select TextColor

if [ "$1" = "-?" ]
then
    echo "Usage: colecho [-n] [-tty] <TEXT> [COLOR] [BKGCOLOR] [MODE]"
    $0 "  Example:$0 rd bl blink" rd w blink
    echo
    echo "TEXT/BKGCOLORs:"
    echo "  b        : black"
    echo "  rd       : red"
    echo "  gn       : green"
    echo "  bl       : blue"
    echo "  br       : brown (MODE br -> Yellow)"
    echo "  mg       : magenta"
    echo "  cy       : cyan"
    echo "  w        : white"
    echo "  any other: normal"
    echo
    echo "MODEs:"
    echo "  br   : bright/bold"
    echo "  di   : dim"
    echo "  bl   : blinking"
    echo "  inv  : inverse"
    echo "  brbl : bright-blinking"
    echo "  brinv: bright-inverse"
    echo "  dibl : dim-blinking"
    echo "  diinv: dim-inverse"
    echo "  any  : normal"
    exit 1  
fi

if [ $tty = true ]
then
    # textcolor
    case "$2" in
        b)
            TCOL="\033[30m";
            ;;
        rd)
            TCOL="\033[31m";
            ;;
        gn)
            TCOL="\033[32m";
            ;;
        br)
            TCOL="\033[33m";
            ;;
        bl)
            TCOL="\033[34m";
            ;;
        mg)
            TCOL="\033[35m";
            ;;
        cy)
            TCOL="\033[36m";
            ;;
        w)
            TCOL="\033[37m";
            ;;
        *)
            # normal
            TCOL="\033[0m";
            ;;
    esac

    # backgroundcolor
    case "$3" in
        b)
            BKGCOL="\033[40m";
            ;;
        rd)
            BKGCOL="\033[41m";
            ;;
        gn)
            BKGCOL="\033[42m";
            ;;
        br)
            BKGCOL="\033[43m";
            ;;
        bl)
            BKGCOL="\033[44m";
            ;;
        mg)
            BKGCOL="\033[45m";
            ;;
        cy)
            BKGCOL="\033[46m";
            ;;
        w)
            BKGCOL="\033[47m";
            ;;
        *)
            # normal
            BKGCOL="\033[49m";
            ;;
    esac

    # textmode
    case "$4" in
        br)
            TMODE="\033[1m";
            ;;
        
        dk)
            TMODE="\033[2m";
            ;;
        bl)
            TMODE="\033[5m";
            ;;
        inv)
            TMODE="\033[7m";
            ;;
        brbl)
            TMODE="\033[1m\033[5m";
            ;;
        brinv)
            TMODE="\033[1m\033[7m";
            ;;
        dkb)
            TMODE="\033[2m\033[5m";
            ;;
        dkinv)
            TMODE="\033[2m\033[7m";
            ;;
        *)
            TMODE="";
            ;;
    esac

    # do it
    echo -e $opt "$TCOL$BKGCOL$TMODE$1\033[0m"
else
    echo -e $opt "$1"
fi