#!/bin/ksh93

typeset -r FPROG=${.sh.file}
typeset -r PROG=${FPROG##*/}
SDIR=${FPROG%/*}

GIND='gind.ist'
GGLO='gglo.ist'

function showUsage {
	[[ -z $1 ]] && X='--man' || X='-?'
	getopts -a ${PROG} "${ print ${USAGE} ; }" OPT $X
}

function doMain {
	[[ -z $1 ]] && showUsage 1 && return 1
	# remember starting directory
	DIR="${PWD}"
	
	# loop over all files
	while [[ -n $1 ]]; do
		X="$1"
		[[ $X =~ / ]] && { cd "${X%/*}" || continue ; }
	
		X=${1##*/}
		BN="${X%.idx}"
		[[ -f ${BN}.idx ]] && makeindex -s ${GIND} "${BN}"
		[[ -f ${BN}.glo ]] && makeindex -s ${GGLO} -o "${BN}.gls" "${BN}.glo"
		cd "${DIR}"
	done
}

USAGE='[-?1.0 ]
[+NAME?'"${PROG}"' - a makeindex wrapper]
[+DESCRIPTION?'"${PROG}"' is a simple wrapper around \bmakeindex\b(1). The script changes into the directory of each given index \afile\a and calls \bmakeindex\b(1) if a corresponding index file already exists. It is using the styles \b'"${GGLO}"'\b for \b*.idx\b and \b'"${GIND}"'\b for \b.glo\b index files.]
[h:help?Print this help and exit.]
[F:functions?Print a list of all functions available.]
[T:trace]:[fnList?A comma separated list of functions of this script to trace (convinience for troubleshooting).]
\n\n\afile\a[\b.idx\b] ...
'
X="${ print ${USAGE} ; }"
while getopts "${X}" OPT ; do
	case ${OPT} in
		h) showUsage ; exit 0 ;;
		T)	if [[ ${OPTARG} == 'ALL' ]]; then
				typeset -ft ${ typeset +f ; }
			else
				typeset -ft ${OPTARG//,/ }
			fi
			;;
		F) typeset +f && exit 0 ;;
	esac
done
X=$((OPTIND-1))
shift $X && OPTIND=1
unset X

doMain "$@"