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Diffstat (limited to 'converter/other/anytopnm')
| -rwxr-xr-x | converter/other/anytopnm | 544 |
1 files changed, 544 insertions, 0 deletions
diff --git a/converter/other/anytopnm b/converter/other/anytopnm new file mode 100755 index 00000000..6c56b5ef --- /dev/null +++ b/converter/other/anytopnm @@ -0,0 +1,544 @@ +#!/bin/sh +# +# anytopnm - attempt to convert an unknown type of image file to a P?M file. +# +# Copyright (C) 1991 by Jef Poskanzer. +# +# Permission to use, copy, modify, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, provided +# that the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation. This software is provided "as is" without express or +# implied warranty. + + + +putInputIntoTempfile() { + + # $1 is the input file specification + # $2 is the temporary file name + + rm -f "$2" + if [ "$1" = "-" ] ; then + cat > "$2" + else + # We'd like to do a -e here to test the existence of the filesystem + # object per se, and thus give a more specific error message. But + # some systems don't have -e. + if [ ! -f "$1" ] ; then + echo "$progname: '$1' does not exist or is not a file" 1>&2 + exit 1 + fi + + if [ ! -r "$1" ] ; then + echo "$progname: '$1' is not readable" 1>&2 + exit 1 + fi + + if [ -z "$1" ] ; then + echo "$progname: '$1' is empty" 1>&2 + exit 1 + fi + + cat < "$1" > "$2" + fi +} + + + +setMimeType() { + # $1 is the file name + + # Christos Zoulas's current 'file' (see Freshmeat) has the --mime option. + + file --mime /dev/null >/dev/null 2>/dev/null + if [ $? -eq 0 ]; then + # Now that we know the --mime option exists, use it. + mimeType=`file --mime "$1" | cut -d: -f2- | cut -c2-` + else + # file --mime failed; we don't know why, but we assume it's because it + # is a traditional 'file' program that doesn't have a --mime option. + mimeType="unknown" + fi +} + + + +computeTypeFromMimeType () { + +# $1 is the mime type string + + case "$1" in + + image/jpeg ) + filetype="jfif" + ;; + image/gif ) + filetype="gif" + ;; + image/tiff ) + filetype="tiff" + ;; + image/bmp ) + filetype="bmp" + ;; + image/x-ms-bmp ) + filetype="bmp" + ;; + image/png ) + filetype="png" + ;; + image/x-portable-bitmap | image/x-portable-pixmap | \ + image/x-portable-greymap) + filetype="pnm" + ;; + image/x-xpm ) + filetype="xpm" + ;; + * ) + filetype=unknown + ;; + esac +} + + + +computeTypeFromTypeDescription () { + +# $1 is the full description from 'file' of the file type + + case "$1" in + + *PBM* | *PGM* | *PPM* ) + filetype=pnm + ;; + + *JPEG* | *JFIF* ) + filetype=jfif + ;; + + *PNG* ) + filetype=png + ;; + + *GIF* ) + filetype=gif + ;; + + *TIFF* ) + filetype=tiff + ;; + + *PC*bitmap*data* ) + filetype=bmp + ;; + + *uuencoded* ) + filetype=uuencoded + ;; + + *bzip2*compressed*data* ) + filetype=bzip2 + ;; + + *bzip*compressed*data* ) + filetype=bzip + ;; + + *gzip*compressed*data* ) + filetype=gzip + ;; + + *compress* ) + filetype=compress + ;; + + *btoa* ) + filetype=btoa + ;; + + *Sun* | *rasterfile* ) + filetype=rast + ;; + + *IFF*ILBM* ) + filetype=ilbm + ;; + + *Lisp* ) + filetype=lispm + ;; + + *PC*Paintbrush* ) + filetype=pcx + ;; + + *Bennet* ) + filetype=ybm + ;; + + *pixmap*image*text* ) + filetype=xpm + ;; + + # This has to come after all other 'text' files, or you may be + # disappointed. + *text* ) + filetype=text + ;; + + *MicroDesign* ) + filetype=mda + ;; + + * ) + filetype=unknown + ;; + esac +} + + + +computeTypeFromFilenameExtension () { +# $1 is the filename extension (".gif", etc.) + + case "$1" in + + *.pbm | *.pbm.* | *.pgm | *.pgm.* | *.ppm | *.ppm.* ) + filetype=pnm + ;; + *.JPEG | *.jpeg | *.jpg | *.JPG ) + filetype=jfif + ;; + *.gif | *.gif.* ) + filetype=gif + ;; + *.png | *.PNG ) + filetype=png + ;; + *.tif | *.tif.* | *.tiff | *.tiff.* ) + filetype=tiff + ;; + *.bmp ) + filetype=bmp + ;; + *.x | *.x.* | *.xbm | *.xbm.* | *.x10bm | *.x10bm.* | \ + *.x11bm | *.x11bm.* | *.bitmap | *.bitmap.* ) + filetype=xbm + ;; + *.r | *.r.* | *.rast | *.rast.* ) + filetype=rast + ;; + *.mac | *.mac.* | *.macp | *.macp.* ) + filetype=macp + ;; + *.g3 | *.g3.* | *.fax | *.fax.* ) + filetype=g3 + ;; + *.xwd | *.xwd.* | *.x10wd | *.x10wd.* \ + | *.x11wd | *.x11wd.* ) + filetype=xwd + ;; + *.brush | *.brush.* ) + filetype=brush + ;; + *.img | *.img.* ) + filetype=gem + ;; + *.pcx | *.pcx.* ) + filetype=pcx + ;; + *.pic | *.pic.* | *.pict | *.pict.* | *.pict2 | *.pict2.* ) + filetype=pict + ;; + *.fs | *.fs.* | *.face | *.face.* ) + filetype=fs + ;; + *.hips | *.hips.* ) + filetype=hips + ;; + *.fits | *.fits.* ) + filetype=fits + ;; + *.iff | *.iff.* | *.ilbm | *.ilbm.* ) + filetype=ilbm + ;; + *.lispm | *.lispm.* ) + filetype=lispm + ;; + *.mtv | *.mtv.* ) + filetype=mtv + ;; + *.qrt | *.qrt.* ) + filetype=qrt + ;; + *.tga | *.tga.* | *.targa | *.targa.* ) + filetype=tga + ;; + *.xim | *.xim.* ) + filetype=xim + ;; + *.xpm | *.xpm.* | *.xpm2 | *.xpm2.* ) + filetype=xpm + ;; + *.pi1 | *.pi1.* ) + filetype=pi1 + ;; + *.pi3 | *.pi3.* ) + filetype=pi3 + ;; + *.spu | *.spu.* ) + filetype=spu + ;; + *.spc | *.spc.* ) + filetype=spc + ;; + *.ybm | *.ybm.* | *.face | *.face.* ) + filetype=ybm + ;; + *.mda | *.mdp ) + filetype=mda + ;; + * ) + filetype=unknown + ;; + esac +} + + + +determineType () { + +# $1 is the name of the file that contains the subject file's contents +# $2 is the mime type or "unknown" +# $3 is the type description from 'file' + + if [ "$2" = "unknown" ]; then + filetype="unknown" + else + computeTypeFromMimeType "$2" + fi + + if [ "$filetype" = "unknown" ]; then + computeTypeFromTypeDescription "$3" + fi + + if [ "$filetype" = "unknown" ]; then + computeTypeFromFilenameExtension "$4" + fi +} + + + +convertIt () { +# Based on the file type computed, do the conversion + +# $1 is the input file name +# $2 is our file type code + +case "$2" in + + pnm ) + cat "$file" + ;; + + uuencoded ) + newfile="$tempdir/atn.decode.$$" + rm -f "$newfile" + (echo begin 600 $newfile; sed 1d < "$file") | uudecode + anytopnm "$newfile" + ;; + + bzip2 ) + bzip2 -dk < "$file" | anytopnm - + ;; + + bzip ) + bzip -dk < "$file" | anytopnm - + ;; + + gzip ) + gzip --decompress --to-stdout < "$file" | anytopnm - + ;; + + compress ) + uncompress -c < "$file" | anytopnm - + ;; + + btoa ) + atob < "$file" | anytopnm - + ;; + + rast ) + rasttopnm "$file" + ;; + + gif ) + giftopnm "$file" + ;; + + tiff ) + tifftopnm "$file" + ;; + + ilbm ) + ilbmtoppm "$file" + ;; + + lispm ) + lispmtopgm "$file" + ;; + + pcx ) + pcxtoppm "$file" + ;; + + ybm ) + ybmtopbm "$file" + ;; + + xpm ) + xpmtoppm < "$file" + ;; + + # This has to come after all other 'text' files, or you may be + # disappointed. + text ) + pbmtext -builtin fixed < "$file" + ;; + + jfif ) + jpegtopnm "$file" + ;; + + png ) + pngtopnm "$file" + ;; + + mda ) + mdatopbm -d -- "$file" + ;; + + bmp ) + bmptoppm "$file" + ;; + + xbm ) + xbmtopbm "$file" + ;; + macp ) + macptopbm "$file" + ;; + g3 ) + g3topbm "$file" + ;; + xwd ) + xwdtopnm "$file" + ;; + brush ) + brushtopbm "$file" + ;; + img ) + gemtopbm "$file" + ;; + pcx ) + pcxtoppm "$file" + ;; + pict ) + picttoppm "$file" + ;; + fs ) + fstopgm "$file" + ;; + hips ) + hipstopgm "$file" + ;; + fits ) + fitstopnm "$file" + ;; + mtv ) + mtvtoppm "$file" + ;; + qrt ) + qrttoppm "$file" + ;; + tga ) + tgatoppm "$file" + ;; + xim ) + ximtoppm "$file" + ;; + pi1 ) + pi1toppm "$file" + ;; + pi3 ) + pi3topbm "$file" + ;; + spu ) + sputoppm "$file" + ;; + spc ) + spctoppm "$file" + ;; + * ) + echo "$progname: INTERNAL ERROR. Illegal value of filetype variable" + exit 1 + ;; + + esac +} + + + +############################################################################### +# MAINLINE +############################################################################### + +progname=$0 + +if [ $# -gt 1 ] ; then + echo "Too many arguments: $#. The only valid argument is the" \ + "input file name." 1>&2 + exit 1 +elif [ $# -eq 1 ] ; then + inputFile="$1" +else + inputFile="-" +fi + +tempdir="${TMPDIR-/tmp}/anytopnm.$$" +mkdir $tempdir || { echo "Could not create temporary file. Exiting."; exit 1;} +chmod 700 $tempdir + +trap 'rm -rf $tempdir' 0 + +# Take out all spaces +# Find the filename extension for last-ditch efforts later + +# We used to do this, but it doesn't work with all Awks. The sed below +# is universal. 2005.11.02. +#fileExtension=`echo "$inputFile" | \ +# $AWK '{gsub(" ","");gsub(".*\\\\.",".");print}'` + +fileExtension=`echo "$inputFile" | sed 's/ //;s/.*\././g'` + +file="$tempdir/atn.stdin.$$" + +putInputIntoTempfile "$inputFile" "$file" + +setMimeType "$file" + +typeDescription=`file "$file" | cut -d: -f2- | cut -c2` + +determineType "$file" "$mimeType" "$typeDescription" "$fileExtension" + +if [ "$filetype" = "unknown" ]; then + echo "$progname: unknown file type. " \ + "'file' says mime type is '$mimeType', " 1>&2 + echo "type description is '$typeDescription'" 1>&2 + exit 1 + fi + +convertIt $file $filetype + +exit 0 |