Extended printf (printfx)

printfx.sh

# 
#     This file is a part of Hypersoft bash-masters
# 
#     Copyright (C) 2013, Triston J. Taylor ([email protected])
# 
#     All rights reserved.
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#     notice, this list of conditions and the following disclaimer.
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#     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 
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#     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
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#                                                           triston@1359202440
# 


printfx ()
{

	TEMP=`getopt -o D:d:hulCks:ebw:c:i:f:p: --long delimiter:dupchar:,auto-clear,underline,help,keep,bold,format:,script:,color:,print: -n "$FUNCNAME" -- "$@"`

	if [ $? != 0 ] ; then return 1 ; fi

	eval set -- "$TEMP";

	declare format='%s\n' escape='-E' line='' script delimiter;

	declare clear='eval tput sgr0; escape="-E" line= script= format="%s\\n" delimiter=';
	declare clearcode="$clear";

	declare clean='if [[ "${clear:0:4}" != true ]]; then $clear; fi';
	declare prints='if [[ "$script" ]]; then tput -S <<<"$script"; fi'

	declare auto='if [[ -z "$delimiter" ]]; then printf "$format" "$2"; else IFS="$delimiter"; eval printf \"\$format\" \$2; IFS=$'\'' \t\n'\''; fi'

	while [[ ${1:0:1} == - ]]; do
		[[ $1 =~ ^-h|--help ]] && {
			echo ''
			echo 'USAGE: $FUNCNAME [OPTIONS] [TEXT]'
			echo ''
			echo 'OPTIONS'
			echo ''
			echo '  -s  Sets a (tput) terminal attribute'
			echo '  -c  Sets the terminal foreground color'
			echo '  -d  Duplicates the char expression: cN, where c is the char, N is the count'
			echo '  -D  Sets IFS to expand the print argument, set to IFS to expand normally.'
			echo '  -b  Sets the terminal bold attribute'
			echo '  -u  Sets terminal underline attribute'
			echo '  -f  Sets the print format to argument'
			echo '  -p  Immediately prints argument according to format on standard out'
			echo '  -w  Immediately writes argument to standard out'
			echo '  -e  Enables write escape parsing (per call)'
			echo '  -l  Enables write line (per call)'
			echo '  -k  Always keep the terminal profile'
			echo '  -i  Optimally write multiple lines of tput script from a shell variable label'
			echo ''
			echo '  -C  Reverses the effect of -k'
			echo ''
			echo '  -h  Show this help screen'
			echo ''
			echo '  --script     Same as -s'
			echo '  --color      Same as -c'
			echo '  --dupchar    Same as -d'
			echo '  --bold       Same as -b'
			echo '  --underline  Same as -u'
			echo '  --format     Same as -f'
			echo '  --write      Same as -w'
			echo '  --print      Same as -p'
			echo '  --keep       Same as -k'
			echo '  --import     Same as -i'
			echo ''
			echo '  --delimiter   Same as -D'
			echo '  --auto-clear  Same as -C'
			echo ''
			echo '  --help  Same as -h'
			return;
		};

		[[ $1 == -- ]] && { shift; break; };
		[[ $1 == -l ]] && { line='-n'; shift 1; continue; };
		[[ $1 == -w ]] && { eval $prints; echo $escape $line "${2}"; eval $clean; shift 2; continue; };
		[[ $1 == -i ]] && { script+="${!2}"$'\n'; shift 2; continue; };
		[[ $1 == -e ]] && { escape=$1; shift 1; continue; };
		[[ $1 =~ ^-s|--script$ ]] && { script+="$2"$'\n'; shift 2; continue; };
		[[ $1 =~ ^-D|--delimiter$ ]] && { delimiter="$2"; shift 2; continue; };
		[[ $1 =~ ^-d|--dupchar$ ]] && { 
			declare v="$(printf "%0${2:1}s" '')"; eval $prints; printf %s "${v// /${2:0:1}}";
			eval $clean; shift 2; continue;
		};
		[[ $1 =~ ^-c|--color$ ]] && { script+="setf $2"$'\n'; shift 2; continue; };
		[[ $1 =~ ^-b|--bold$ ]] && { script+="bold"$'\n'; shift 1; continue; };
		[[ $1 =~ ^-u|--underline$ ]] && { script+="smul"$'\n'; shift 1; continue; };
		[[ $1 =~ ^-f|--format$ ]] && { format="${2}"; shift 2; continue; };
		[[ $1 =~ ^-p|--print$ ]] && { eval $prints; eval $auto; eval $clean; shift 2; continue; };
		[[ $1 =~ ^-k|--keep$ ]] && { clear='true'; shift 1; continue; };
		[[ $1 =~ ^-C|--auto-clear$ ]] && { clear="$clearcode"; shift 1; continue; };
		break;
	done

	eval $prints;
		(( $# )) && {
			[[ -n "$format" ]] && printf "$format" "$@" || printf "$@" 
		}
	eval $clear;


}