mdw@git.distorted.org.uk Git - cfd/blob - txtlib.in

   1 #! /bin/sh
   2
   3 # -*-sh-*-
   4 #
   5 # $Id: txtlib.in,v 1.5 2004/04/08 01:36:24 mdw Exp $
   6 #
   7 # Manipulate simple libraries of text chunks
   8 #
   9 # (c) 1997 Mark Wooding
  10 #
  11
  12 #----- Licensing notice -----------------------------------------------------
  13 #
  14 # This file is part of the Common Files Distribution (`common').
  15 #
  16 # `Common' is free software; you can redistribute it and/or modify
  17 # it under the terms of the GNU General Public License as published by
  18 # the Free Software Foundation; either version 2 of the License, or
  19 # (at your option) any later version.
  20 #
  21 # `Common' is distributed in the hope that it will be useful,
  22 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 # GNU General Public License for more details.
  25 #
  26 # You should have received a copy of the GNU General Public License
  27 # along with `common'; if not, write to the Free Software Foundation,
  28 # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  29
  30 set -e
  31
  32 # --- Handle command line arguments ---
  33
  34 files=""
  35 mode=x
  36 out=""
  37
  38 # --- Parse command line arguments ---
  39
  40 while [ $# -gt 0 ]; do
  41   case $1 in
  42     -h | --h | --he | --hel | --help)
  43       cat <<EOF
  44 Usage: txtlib [-lx] [-o FILE] [LIBRARY...]
  45
  46 In \`extract' mode (-x, default), extracts chunks named on standard input
  47 from the list of libraries, and writes the result to standard output.
  48
  49 In \`list' mode (-l), lists the chunks defined in the text libraries given.
  50
  51 Options:
  52
  53 -h, --help              Print this help text.
  54 -v, --version           Print the program's version number.
  55 -l, --list              List chunks defined in text libraries.
  56 -x, --extract           Extract chunks from text libraries (default).
  57 -o, --output=FILE       Extract chunks to FILE, not standard output.
  58 EOF
  59       exit 0
  60       ;;
  61     -v | --v | --ve | --ver | --vers | --versi | --versio | --version)
  62       version=`echo '$Revision: 1.5 $' |
  63         sed -n -e 's;^.*: \([0-9.]*\) *\\$;\1;p'`
  64       echo "txtlib $version; Common Files Distribution version @VERSION@"
  65       exit 0
  66       ;;
  67     -o | --o | --ou | --out | --outp | --outpu | --output)
  68       out="$2";
  69       shift
  70       ;;
  71     -o*)
  72       out=`echo $1 | sed -e 's/^-[a-z]//'`
  73       ;;
  74     --o=* | --ou=* | --out=* | --outp=* | --outpu=* | --output=*)
  75       out=`echo $1 | sed -e 's/^--[a-z]*=//'`
  76       ;;
  77     -l | --l | --li | --lis | --list)
  78       mode=l
  79       ;;
  80     -x | --e | --ex | --ext | --extr | --extra | --extrac | --extract)
  81       mode=x
  82       ;;
  83     --)
  84       shift
  85       break
  86       ;;
  87     -)
  88       break
  89       ;;
  90     -*)
  91       echo "txtlib: unknown option \`$1'" >&2
  92       exit 1
  93       ;;
  94     *)
  95       break
  96       ;;
  97   esac
  98   shift
  99 done
 100
 101 test "$out" = "-" && out=""
 102
 103 # --- Build a `sed' script ---
 104
 105 case $mode in
 106   l)
 107     sed -n -e "/^.*\*@-\([-a-zA-Z0-9_]*\)-@\*.*$/ s//\1/p" /dev/null "$@"
 108     ;;
 109   x)
 110     t=${TMPDIR-/tmp}/txtlib.$$
 111     if mkdir -m 700 $t; then :
 112     else
 113       echo >&2 "txtlib: could not create temporary directory"
 114       exit 1
 115     fi
 116     sedfile=/$t/sed
 117     while read LINE; do
 118       echo "/\*@-$LINE-@\*/,/\*@-#-@\*/ p"
 119     done >$sedfile
 120     test -z "$out" || exec >"$out"
 121     sed -e '/\*@-[-a-zA-Z0-9_]*-@\*/ i\
 122     *@-#-@*' /dev/null "$@" | sed -n -f $sedfile | sed -e '/\*@-#-@\*/ d'
 123     rm -rf $t
 124     ;;
 125 esac