144 lines
3.4 KiB
Bash
Executable File
144 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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# @(#$Id: rclsvg,v 1.2 2008-02-03 16:05:57 dockes Exp $ (C) 2004 J.F.Dockes
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# Parts taken from Estraier:
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#================================================================
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# Estraier: a personal full-text search system
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# Copyright (C) 2003-2004 Mikio Hirabayashi
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#================================================================
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#================================================================
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# Extract text from a Scalable Vector Graphics file
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#================================================================
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# set variables
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LANG=C ; export LANG
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LC_ALL=C ; export LC_ALL
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progname="rclsvg"
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filetype=svg
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#RECFILTCOMMONCODE
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##############################################################################
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# !! Leave the previous line unmodified!! Code imported from the
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# recfiltcommon file
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# Utility code common to all shell filters. This could be sourced at run
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# time, but it's slightly more efficient to include the code in the
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# filters at build time (with a sed script).
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# Describe error in a way that can be interpreted by our caller
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senderror()
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{
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echo RECFILTERROR $*
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# Also alert on stderr just in case
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echo ":2:$progname::: $*" 1>&2
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exit 1
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}
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iscmd()
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{
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cmd=$1
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case $cmd in
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*/*)
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if test -x $cmd ; then return 0; else return 1; fi ;;
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*)
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oldifs=$IFS; IFS=":"; set -- $PATH; IFS=$oldifs
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for d in $*;do test -x $d/$cmd && return 0;done
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return 1 ;;
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esac
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}
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checkcmds()
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{
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for cmd in $*;do
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if iscmd $cmd
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then
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a=1
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else
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senderror HELPERNOTFOUND $cmd
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fi
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done
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}
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# show help message
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if test $# -ne 1 -o "$1" = "--help"
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then
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echo "Convert a $filetype file to HTML text for Recoll indexing."
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echo "Usage: $progname [infile]"
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exit 1
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fi
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infile="$1"
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# check the input file existence (may be '-' for stdin)
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if test "X$infile" != X- -a ! -f "$infile"
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then
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senderror INPUTNOSUCHFILE "$infile"
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fi
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# protect access to our temp files and directories
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umask 77
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##############################################################################
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# !! Leave the following line unmodified !
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#ENDRECFILTCOMMONCODE
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checkcmds iconv sed
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# check the input file existence
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if test ! -f "$infile"
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then
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printf '%s: %s: no such file\n' "$progname" "$infile"
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exit 1
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fi
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encoding=`sed -ne '/<?xml/s/.*encoding="\([^"]*\).*/\1/p' < $infile`
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if test X$encoding = X ; then encoding=UTF-8;fi
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# We use several sed instances to make our life easier. Not good for
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# performance, and a sed guru might be able to do better.
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#
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# The first sed makes sure each tag starts on a new line
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# The second one selects the tags we're interested in.
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# The last strips the tags, leaving only text.
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#
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# The whole thing wholly ignore issues like '<' inside quoted strings.
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#
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# We could/should add code to explicitely separate title and other
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# metadata elements.
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# Insert new line before each tag
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sptagonline='s/</\
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</g'
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# Select tags
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spselecttags='/<title/,/<\/title>/p
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/<desc/,/<\/desc>/p
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/<metadata/,/<\/metadata>/p
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/<text/,/<\/text>/p'
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# Strip tags
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spstriptags='#n
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/</{
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:c
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/>/!{
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N
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b c
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}
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/>/s/<.*>//g
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}
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/^[ ]*$/!p'
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content=`sed -e "$sptagonline" < $infile | sed -ne "$spselecttags" | \
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sed -ne "$spstriptags"`
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(echo '<html><head>'
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echo '<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">'
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echo '</head><body><pre>'
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echo "$content"
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echo '</pre></body></html>') \
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| iconv -f $encoding -t UTF-8 -c -s
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# exit normally
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exit 0
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