$title

#!/bin/sh # @(#$Id: rcldjvu,v 1.2 2006-04-04 16:03:28 dockes Exp $ (C) 2005 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. #================================================================ # rcldjvu # Extract text from a djvu file by executing djvused and djvutxt # # We use djvused to extract a possible title, djvutxt for the text # # Of course this only means anything if the djvu document actually has # a text layer ! # #================================================================ LANG=C ; export LANG LC_ALL=C ; export LC_ALL progname="rcldjvu" # show help message if test $# -ne 1 -o "$1" = "--help" then printf 'Convert a djvu file to HTML text for recoll indexation.\n' printf 'Usage: %s [infile]\n' "$progname" exit 1 fi infile="$1" iscmd() { cmd=$1 case $cmd in */*) if test -x $cmd ; then return 0; else return 1; fi ;; *) oldifs=$IFS; IFS=":"; set -- $PATH; IFS=$oldifs for d in $*;do test -x $d/$cmd && return 0;done return 1 ;; esac } checkcmds() { for cmd in $*;do if iscmd $cmd then a=1 else echo $cmd not found 1>&2 exit 1 fi done } checkcmds djvutxt djvused awk # check the input file existence if test ! -f "$infile" then printf '%s: %s: no such file\n' "$progname" "$infile" exit 1 fi # Title: we try to extract it from the annotations. djvused outputs string # in C/awk \-escaped notation. Awk can only process this in string # constants, so we have a first awk pass to create an awk program to parse # the string as a constant (...). This is not exactly robust or nice title=`djvused "$infile" -e 'select 1;output-ant' | \ grep ' (title ' | sed -e 's/^.* (title //' -e 's/)$//' |\ awk ' { printf("BEGIN {s = %s; print s}\n", $0) }' | awk -f -` cat < $title

EOF

djvutxt "$infile" | sed -e 's/[ 	][ 	]*$//' | \
awk '
BEGIN {
  cont = ""
}
{
    $0 = cont $0
    cont = ""

    if ($0 == "\f") {
       print "
\n
\n"
       next
    } else if ($0 ~ /[-]$/) {
      # Break at last whitespace
      match($0, "[ \t][^ \t]+$")
      line = substr($0, 0, RSTART)
      cont = substr($0, RSTART, RLENGTH)
      $0 = line
      gsub("-", "", cont)
    }
    gsub(/&/, "\\&", $0)
    gsub(//, "\\>", $0)
    print $0      
}'

cat <


EOF