JezK
Edit File: ppmbrighten
#! /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