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

   1 #! /bin/sh
   2
   3 # -*-sh-*-
   4 #
   5 # $Id: txtlib.in,v 1.3 2001/01/20 12:02:12 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 #----- Revision history -----------------------------------------------------
  31 #
  32 # $Log: txtlib.in,v $
  33 # Revision 1.3  2001/01/20 12:02:12  mdw
  34 # Honour TMPDIR environment variable.
  35 #
  36 # Revision 1.2  1999/11/11 17:49:15  mdw
  37 # Regular expression fixes for parsing version numbers.
  38 #
  39 # Revision 1.1.1.1  1999/05/05 19:23:47  mdw
  40 # New import.  The old CVS repository was lost in a disk disaster.
  41 #
  42
  43 # --- Handle command line arguments ---
  44
  45 files=""
  46 mode=x
  47 out=""
  48
  49 # --- Parse command line arguments ---
  50
  51 while [ $# -gt 0 ]; do
  52   case $1 in
  53     -h | --h | --he | --hel | --help)
  54       cat <<EOF
  55 Usage: txtlib [-lx] [-o FILE] [LIBRARY...]
  56
  57 In \`extract' mode (-x, default), extracts chunks named on standard input
  58 from the list of libraries, and writes the result to standard output.
  59
  60 In \`list' mode (-l), lists the chunks defined in the text libraries given.
  61
  62 Options:
  63
  64 -h, --help              Print this help text.
  65 -v, --version           Print the program's version number.
  66 -l, --list              List chunks defined in text libraries.
  67 -x, --extract           Extract chunks from text libraries (default).
  68 -o, --output=FILE       Extract chunks to FILE, not standard output.
  69 EOF
  70       exit 0
  71       ;;
  72     -v | --v | --ve | --ver | --vers | --versi | --versio | --version)
  73       version=`echo '$Revision: 1.3 $' |
  74         sed -n -e 's;^.*: \([0-9.]*\) *\\$;\1;p'`
  75       echo "txtlib $version; Common Files Distribution version @VERSION@"
  76       exit 0
  77       ;;
  78     -o | --o | --ou | --out | --outp | --outpu | --output)
  79       out="$2";
  80       shift
  81       ;;
  82     -o*)
  83       out=`echo $1 | sed -e 's/^-[a-z]//'`
  84       ;;
  85     --o=* | --ou=* | --out=* | --outp=* | --outpu=* | --output=*)
  86       out=`echo $1 | sed -e 's/^--[a-z]*=//'`
  87       ;;
  88     -l | --l | --li | --lis | --list)
  89       mode=l
  90       ;;
  91     -x | --e | --ex | --ext | --extr | --extra | --extrac | --extract)
  92       mode=x
  93       ;;
  94     --)
  95       shift
  96       break
  97       ;;
  98     -)
  99       break
 100       ;;
 101     -*)
 102       echo "txtlib: unknown option \`$1'" >&2
 103       exit 1
 104       ;;
 105     *)
 106       break
 107       ;;
 108   esac
 109   shift
 110 done
 111
 112 test "$out" = "-" && out=""
 113
 114 # --- Build a `sed' script ---
 115
 116 case $mode in
 117   l)
 118     sed -n -e "/^.*\*@-\([-a-zA-Z0-9_]*\)-@\*.*$/ s//\1/p" "$@"
 119     ;;
 120   x)
 121     t=${TMPDIR-/tmp}/txtlib.$$
 122     if mkdir -m 700 $t; then :
 123     else
 124       echo >&2 "txtlib: could not create temporary directory"
 125       exit 1
 126     fi
 127     sedfile=/$t/sed
 128     while read LINE; do
 129       echo "/\*@-$LINE-@\*/,/\*@-#-@\*/ p"
 130     done >$sedfile
 131     test -z "$out" || exec >$out
 132     sed -e '/\*@-[-a-zA-Z0-9_]*-@\*/ i\
 133     *@-#-@*' "$@" | sed -n -f $sedfile | sed -e '/\*@-#-@\*/ d'
 134     rm -rf $t
 135     ;;
 136 esac