%PDF-
%PDF-
Mini Shell
Mini Shell
#!/bin/bash
#
# Copyright (c) 2015-2018 Samuel Thibault <samuel.thibault@ens-lyon.org>
#
# Licensed under Apache License v2.0. See the file "LICENSE" for more
# information.
#
# Make sure we have enough options
if [ $# != 5 -a $# != 6 ]; then
echo "ERROR: $0 jobid user name nb options [filename]" >&2
exit 1
fi
NB=$4
OPTIONS=$5
FILE=$6
. /usr/share/cups/braille/cups-braille.sh
####################
# Liblouis options #
####################
LIBLOUIS_CONFIG=""
echo "DEBUG: Input content type: $CONTENT_TYPE" >&2
# FIXME CONTENT_TYPE contains original document, not document passed as parameter ?!!
setupTextRendering() {
# Default rendering without translation: just reformat paragraphs
RENDER_CALL="fmt -$TEXTWIDTH"
# Tool to be used for the conversion
case $CONTENT_TYPE in
text/plain)
CONVERT=""
;;
text/html)
CONVERT=""
RENDER_CALL="lynx -width=$TEXTWIDTH -dump -stdin"
checkTool lynx lynx "translating html files"
;;
application/msword)
CONVERT="antiword -"
checkTool antiword antiword "translating MS-Word doc files"
;;
application/vnd.openxmlformats-officedocument.wordprocessingml.document)
CONVERT="docx2txt"
checkTool docx2txt docx2txt "translating MS-Word docx files"
;;
text/rtf|application/rtf)
CONVERT="rtf2txt /dev/stdin"
checkTool rtf2txt rtf2txt "translating RTF files"
;;
application/pdf|application/vnd.cups-pdf-banner)
CONVERT="pdftotext -raw - -"
checkTool pdftotext poppler "translating PDF files"
;;
*)
echo "ERROR: unsupported content type $CONTENT_TYPE" >&2
exit 1
;;
esac
}
# sometimes we can't filter directly from stdin or the original file because the
# tools need to seek within the file (e.g. unzip), or spaces in the path pose
# problem. This can be called in such case to dump the original content to a
# fresh file
dumptofile() {
ORIGFILE="$FILE"
FILE=$(mktemp "${TMPDIR:-/tmp}/texttobrf.tmp.XXXXXX")
trap -- 'rm -f "$FILE"' EXIT
if [ -n "$ORIGFILE" ]
then
cat "$ORIGFILE" > "$FILE"
else
cat > "$FILE"
fi
}
# Selected braille table
if [ -n "$LIBLOUIS_TABLES" ]
then
if type file2brl > /dev/null
then
# Good, we can use liblouisutdml
case $CONTENT_TYPE in
text/plain)
LIBLOUIS_TOOL="file2brl"
CONVERT=""
;;
text/html)
LIBLOUIS_TOOL="file2brl -t"
CONVERT=""
;;
text/xml|application/xml|application/xhtml+xml|application/sgml)
LIBLOUIS_TOOL="file2brl"
CONVERT=""
;;
application/msword)
LIBLOUIS_TOOL="file2brl"
CONVERT="antiword -x db -"
checkTool antiword antiword "translating MS-Word doc files"
;;
application/vnd.oasis.opendocument*)
LIBLOUIS_TOOL="file2brl"
dumptofile
CONVERT="unzip -p $FILE content.xml"
CHARSET=utf-8
checkTool unzip unzip "translating LibreOffice/OpenOffice OpenDocument files"
;;
application/vnd.openxmlformats-officedocument*)
LIBLOUIS_TOOL="file2brl"
dumptofile
CONVERT="unzip -p $FILE word/document.xml"
CHARSET=utf-8
checkTool unzip unzip "translating MS-Word docx files"
;;
text/rtf|application/rtf)
LIBLOUIS_TOOL="file2brl"
CONVERT="rtf2xml /dev/stdin"
checkTool rtf2xml rtf2xml "translating RTF files"
;;
application/pdf|application/vnd.cups-pdf-banner)
LIBLOUIS_TOOL="file2brl -p"
CONVERT="pdftotext -raw - -"
CHARSET=utf-8
checkTool pdftotext poppler "translating PDF files"
;;
*)
echo "ERROR: unsupported content type $CONTENT_TYPE" >&2
exit 1
;;
esac
#
# text encoding
#
if [ "$CHARSET" = utf-8 ]
then
LIBLOUIS_CONFIG+=" -CinputTextEncoding=UTF8"
else
LIBLOUIS_CONFIG+=" -CinputTextEncoding=ascii8"
fi
#
# Page numbers options
#
BRAILLEPAGENUMBER=$(getOption BraillePageNumber)
case "$BRAILLEPAGENUMBER" in
None) LIBLOUIS_CONFIG+=" -CbraillePages=no";;
TopMargin) LIBLOUIS_CONFIG+=" -CbraillePages=yes -CbraillePageNumberAt=top -CpageNumberTopSeparateLine=yes";;
BottomMargin) LIBLOUIS_CONFIG+=" -CbraillePages=yes -CbraillePageNumberAt=bottom -CpageNumberBottomSeparateLine=yes";;
TopInline) LIBLOUIS_CONFIG+=" -CbraillePages=yes -CbraillePageNumberAt=top -CpageNumberTopSeparateLine=no";;
BottomInline) LIBLOUIS_CONFIG+=" -CbraillePages=yes -CbraillePageNumberAt=bottom -CpageNumberBottomSeparateLine=no";;
*)
printf "ERROR: Unknown braille page number option '%s'\n" "$BRAILLEPAGENUMBER" >&2
exit 1
;;
esac
PRINTPAGENUMBER=$(getOption PrintPageNumber)
case "$PRINTPAGENUMBER" in
None) LIBLOUIS_CONFIG+=" -CprintPages=no";;
TopMargin) LIBLOUIS_CONFIG+=" -CprintPages=yes -CprintPageNumberAt=top -CpageNumberTopSeparateLine=yes";;
BottomMargin) LIBLOUIS_CONFIG+=" -CprintPages=yes -CprintPageNumberAt=bottom -CpageNumberBottomSeparateLine=yes";;
TopInline) LIBLOUIS_CONFIG+=" -CprintPages=yes -CprintPageNumberAt=top -CpageNumberTopSeparateLine=no";;
BottomInline) LIBLOUIS_CONFIG+=" -CprintPages=yes -CprintPageNumberAt=bottom -CpageNumberBottomSeparateLine=no";;
*)
printf "ERROR: Unknown print page number option '%s'\n" "$PRINTPAGENUMBER" >&2
exit 1
;;
esac
# Page numbering in top or bottom margin actually reduce the given margin
if [ "$BRAILLEPAGENUMBER" = TopMargin -o "$PRINTPAGENUMBER" = TopMargin ]
then
TOPMARGIN=$((TOPMARGIN - 1))
TEXTHEIGHT=$((TEXTHEIGHT + 1))
fi
if [ "$BRAILLEPAGENUMBER" = BottomMargin -o "$PRINTPAGENUMBER" = BottomMargin ]
then
BOTTOMMARGIN=$((BOTTOMMARGIN - 1))
TEXTHEIGHT=$((TEXTHEIGHT + 1))
fi
PAGESEPARATOR=$(getOption PageSeparator)
case "$PAGESEPARATOR" in
True|true) LIBLOUIS_CONFIG+=" -CpageSeparator=yes";;
False|false) LIBLOUIS_CONFIG+=" -CpageSeparator=no";;
*)
printf "ERROR: Unknown page separator option '%s'\n" "$PAGESEPARATOR" >&2
exit 1
;;
esac
PAGESEPARATORNUMBER=$(getOption PageSeparatorNumber)
case "$PAGESEPARATORNUMBER" in
True|true) LIBLOUIS_CONFIG+=" -CpageSeparatorNumber=yes";;
False|false) LIBLOUIS_CONFIG+=" -CpageSeparatorNumber=no";;
*)
printf "ERROR: Unknown page separator number option '%s'\n" "$PAGESEPARATORNUMBER" >&2
exit 1
;;
esac
CONTINUEPAGES=$(getOption ContinuePages)
case "$CONTINUEPAGES" in
True|true) LIBLOUIS_CONFIG+=" -CcontinuePages=yes";;
False|false) LIBLOUIS_CONFIG+=" -CcontinuePages=no";;
*)
printf "ERROR: Unknown page separator number option '%s'\n" "$CONTINUEPAGES" >&2
exit 1
;;
esac
LIBLOUIS_CONFIG+=" -CcellsPerLine=$TEXTWIDTH -ClinesPerPage=$TEXTHEIGHT "
RENDER_CALL="$LIBLOUIS_TOOL -Chyphenate=yes -CliteraryTextTable=en-us-brf.dis,$LIBLOUIS_TABLES,braille-patterns.cti $LIBLOUIS_CONFIG"
elif type lou_translate > /dev/null
then
# Only liblouis, but better than nothing
setupTextRendering
printf "WARN: The liblouisutdml package is required for translating braille better\n" >&2
TRANSLATE="lou_translate en-us-brf.dis,$LIBLOUIS_TABLES,braille-patterns.cti"
else
printf "ERROR: The liblouisutdml package is required for translating braille\n" >&2
exit 1
fi
else
# No translation, only text rendering
printf "WARN: No braille table translation was selected\n" >&2
setupTextRendering
fi
# Now proceeed
cd $TMPDIR
echo "INFO: Reformating text" >&2
(
set -o pipefail
set -e
if [ -z "$CONVERT" ]
then
printf "DEBUG: Calling $RENDER_CALL on '%s'\n" "$FILE" >&2
if [ -z "$FILE" ]
then
$RENDER_CALL 2> /dev/null | addmargins
else
< "$FILE" $RENDER_CALL 2> /dev/null | addmargins
fi
elif [ -z "$TRANSLATE" ]
then
printf "DEBUG: Calling $CONVERT | $RENDER_CALL on '%s'\n" "$FILE" >&2
if [ -z "$FILE" ]
then
$CONVERT | $RENDER_CALL 2> /dev/null | addmargins
else
< "$FILE" $CONVERT | $RENDER_CALL 2> /dev/null | addmargins
fi
else
printf "DEBUG: Calling $CONVERT | $RENDER_CALL | $TRANSLATE on '%s'\n" "$FILE" >&2
if [ -z "$FILE" ]
then
$CONVERT | $RENDER_CALL 2> /dev/null | $TRANSLATE | addmargins
else
< "$FILE" $CONVERT | $RENDER_CALL 2> /dev/null | $TRANSLATE | addmargins
fi
fi
) || {
printf "ERROR: text conversion pipeline $CONVERT | $RENDER_CALL | $TRANSLATE | addmargins failed\n" >&2
exit 1
}
echo "INFO: Ready" >&2
Zerion Mini Shell 1.0