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#! /bin/sh
# This is just for backward compatibility. New applications should use
# 'pambrighten'.
# We don't try very hard to respond well to invalid syntax, because backward
# compatibility is mostly like existing, working applications.
pambrightenOpts=''
normalize='no'
expectValue='no'
for word in "$@"; do
if test "$expectValue" = 'yes'; then
# This is the value of an option, like "40" in "-saturation 40"
pambrightenOpts="$pambrightenOpts $word"
expectValue='no'
else
# 'word_one_hyphen' is 'word' except if 'word' is a double-hyphen
# option, 'word_one_hyphen' is the single-hyphen version of it.
# E.g. word=--saturation word_one_hyphen=-saturation .
word_one_hyphen=$(echo "$word" | sed s/^--/-/ )
case $word_one_hyphen in
-version )
pambrighten -version; exit $?
;;
-normalize|-normaliz|-normali|-normal|-norma|-norm|-nor|-no|-n)
normalize='yes'
;;
-*=*)
pambrightenOpts="$pambrightenOpts $word"
# This is an option with value such as "-saturation=40"
;;
-*)
pambrightenOpts="$pambrightenOpts $word"
# Starts with hyphen, no equals sign, so the next word is the
# option's value (note that the only valid ppmbrighten flag
# option is -normalized, handled above).
#
# E.g. "-saturation 40"
expectValue='yes'
;;
*)
# Not an option or option value - only non-option argument
# ppmbrighten has is optional input file name
infile="$word"
;;
esac
fi
done
if test "$normalize" = 'yes'; then
pnmnorm -bsingle -wsingle -colorvalue -keephues $infile | \
pambrighten $pambrightenOpts | ppmtoppm
else
pambrighten $pambrightenOpts $infile | ppmtoppm
fi