#!/bin/sh
# @(#$Id: rcldvi,v 1.7 2008-10-08 16:15:22 dockes Exp $ (C) 2006 J.F.Dockes
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# Extract text from a dvi file by either executing dvitops and rclps
# or using catdvi. dvitops has given better results during tests, and is
# chosen first if available, but the dvitops/rclps combination is much
# slower than catdvi
# set variables
LANG=C ; export LANG
LC_ALL=C ; export LC_ALL
progname="rcldvi"
filetype=dvi
#RECFILTCOMMONCODE
##############################################################################
# !! Leave the previous line unmodified!! Code imported from the
# recfiltcommon file
# Utility code common to all shell filters. This could be sourced at run
# time, but it's slightly more efficient to include the code in the
# filters at build time (with a sed script).
# Describe error in a way that can be interpreted by our caller
senderror()
{
echo RECFILTERROR $*
# Also alert on stderr just in case
echo ":2:$progname::: $*" 1>&2
exit 1
}
iscmd()
{
cmd=$1
case $cmd in
*/*)
if test -x $cmd -a ! -d $cmd ; then return 0; else return 1; fi ;;
*)
oldifs=$IFS; IFS=":"; set -- $PATH; IFS=$oldifs
for d in $*;do test -x $d/$cmd -a ! -d $d/$cmd && return 0;done
return 1 ;;
esac
}
checkcmds()
{
for cmd in $*;do
if iscmd $cmd
then
a=1
else
senderror HELPERNOTFOUND $cmd
fi
done
}
# show help message
if test $# -ne 1 -o "$1" = "--help"
then
echo "Convert a $filetype file to HTML text for Recoll indexing."
echo "Usage: $progname [infile]"
exit 1
fi
infile="$1"
# check the input file existence (may be '-' for stdin)
if test "X$infile" != X- -a ! -f "$infile"
then
senderror INPUTNOSUCHFILE "$infile"
fi
# protect access to our temp files and directories
umask 77
##############################################################################
# !! Leave the following line unmodified !
#ENDRECFILTCOMMONCODE
# Find rclps. Note: this only works because we are always executed with a
# full path
rclps=`dirname $0`/rclps
decoder=""
if iscmd dvips -a iscmd pstotext ; then
decoder=dvips
elif iscmd catdvi ; then
decoder=catdvi
fi
if test X$decoder = X ; then
senderror HELPERNOTFOUND dvips or catdvi
fi
if test X$decoder = Xdvips ; then
$decoder -f < "$infile" 2> /dev/null | $rclps -
exit $?
fi
# The strange 'BEGIN' setup is to prevent 'file' from thinking this file
# is an awk program
$decoder "$infile" |
awk 'BEGIN'\
' {
printf("\n")
printf("\n")
printf("\n");
cont = ""
}
{
$0 = cont $0
cont = ""
if ($0 == "\f") {
print "
\n
\n\f"
next
} else if ($0 ~ /-$/) {
match($0, "[ \t][^ \t]+$")
line = substr($0, 0, RSTART)
cont = substr($0, RSTART, RLENGTH)
$0 = line
gsub("-", "", cont)
}
gsub(/&/, "\\&", $0)
gsub(//, "\\>", $0)
print $0 "
"
}
END {
print "
"
}'