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|
include(shell.m4)dnl -*- shell-script -*-
#! /bin/sh
# -*- ksh -*-
# card --- smartly produce a printed reference card of a program
GPL([Copyright (c) 1998-2000 Akim Demaille, Miguel Santana])
# Author: Akim Demaille <Akim.Demaille@freefriends.org>
# Name by which this script was invoked.
changequote(, )dnl
program=`echo "$0" | sed -e 's/[^\/]*\///g'`
changequote([, ])dnl
card_version='1.3'
# Initialize variables.
# Don't use `unset' since old bourne shells don't have this command.
# Instead, assign them an empty value.
# Some of these, like A2PS, may be inherited from the environment.
a2ps=${A2PS-a2ps}
a2ps_options=-Ecard
commands=
debug=
form_feed=
help="Try \`$program --help' for more information."
LC_ALL="${LC_ALL-C}" export LC_ALL
print_form_feeds=:
RM="/bin/rm -rf"
tmp_dir=`mktemp -d -t card.XXXXXX` || { echo "$program: Cannot create temporary dir!" >&2 ; exit 1; }
tmp_file=$tmp_dir/card
success=false
verbose=:
version_short="card $card_version (@GNU_PACKAGE@ @VERSION@)"
changequote(, )dnl
usage="Usage: $program [OPTION]... PROGRAM...
Print a reference card of the PROGRAMs thanks to their inline help.
Options:
-h, --help display this help and exit
-v, --version display version information and exit
-o, --output=FILE save the output in FILE
-l, --language=LL print the help in the language LL (default: English)
--command=CMD perform pretty-printing on the output of CMD
(e.g. --command='netscape -help')
Options for a2ps are given after \`--', for instance
$ card -lfr a2ps -- -Pdisplay -4
News, updates and documentation: http://www.inf.enst.fr/~demaille/a2ps/
Report bugs to <bug-a2ps@gnu.org>."
changequote([, ])dnl
version="$version_short
Written by Akim Demaille.
Copyright (c) 1997-99 Akim Demaille, Miguel Santana
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
# List of the possible ways to get the on line help.
# -flags is used with Solaris' CC.
possible_options="--help -h -help -\? -flags"
# Parse command line arguments.
option_without_arguments='vhsqDf'
# As a first step, fetch all the options meant for a2ps, i.e.
# everything after `--'.
jam="$$card$$"
set dummy "${1+"$@"}" "$jam"
shift
while test "x$1" != "x$jam" && test "x$1" != "x--"; do
set dummy "${1+"$@"}" "$1"
shift
shift
done
# If $[1] is `--', then from here to the JAM are a2ps arguments.
if test "x$1" = x--; then
shift
while test "x$1" != "x$jam"
do
a2ps_options="$a2ps_options $1"
shift
done
fi
# The current $1 is JAM. Pop up the JAM, pop it up, pop it out.
shift
# Proceed to card's options parsing.
GETOPT([ -v | --v*) echo "$version"; exit 0;;
-h | --h*) echo "$usage"; exit 0;;
-s|-q|--q*|--s*) verbose=: ;;
-D | --debug) debug=: ;;
-o|--output) shift
a2ps_options="$a2ps_options --output=$1" ;;
--lan*|-l) shift; LC_ALL=$1 ;;
--com*|-c) shift; commands="$commands
$optarg" ;;
--no-*|-f) print_form_feeds= ;;])
# ARG now contains both options for a2ps and the true arguments.
if test $# = 0 && test "X$commands" = X; then
exec 1>&2
echo "$program: no program given"
echo "$help"
exit 1
fi
# Create a tmp dir and be ready to clean up
trap "$RM $tmp_dir" 0 1 2 15
case $LC_ALL in
fr) footer="Engendr par $version_short" ;;
*) footer="Generated by $version_short" ;;
esac
# Set -x now if debugging
test -n "$debug" && set -x
# The files to process are in "$@"
for file
do
success=false
changequote(, )dnl
filename=`echo "$file" | sed -e 's/[^\/]*\///g'`
changequote([, ])dnl
$verbose "Working on \`$filename'"
case $LC_ALL in
fr) title="Carte de rfrence pour $filename" ;;
*) title="Reference card of $filename" ;;
esac
# Try to find the help message
for opt in $possible_options
do
$verbose "Trying \`$file $opt'"
($file $opt >$tmp_dir/foo 2>&1) >/dev/null 2>&1 && success=: && break
# Netscape for example is stupid enough to `exit 255' when properly fed
# with -help, as recommanded by -help itself... If there are really
# many lines, consider it is still a success.
if test "$success" = false; then
if test `wc -l <$tmp_dir/foo` -gt 10; then
success=: && break
fi
fi
done
# If the help message has been found, process it with a2ps
if $success; then
$verbose "Success"
if test -n "$form_feed"; then
echo " " >>$tmp_file
fi
cat <<EOF >>$tmp_file
card_label($title)
card_title($title)
EOF
cat $tmp_dir/foo >>$tmp_file
# Be ready to insert a page break before next argument-program
form_feed=$print_form_feeds
else
echo "$program: could not find help message for $file"
exit 1
fi
done
SAVED_IFS="$IFS"
IFS="
"
for command in $commands
do
IFS="$SAVED_IFS"
success=false
case $LC_ALL in
fr) title="Rsultat de \`$command'" ;;
*) title="Result of \`$command'" ;;
esac
(eval $command >$tmp_dir/foo 2>&1) >/dev/null 2>&1 && success=:
# If the help message has been found, process it with a2ps
if $success; then
$verbose "Success"
if test -n "$form_feed"; then
echo " " >>$tmp_file
fi
cat <<EOF >>$tmp_file
card_label($title)
card_title($title)
EOF
cat $tmp_dir/foo >>$tmp_file
# Be ready to insert a page break before next argument-program
form_feed=$print_form_feeds
else
echo "$program: command \"$command\" failed"
exit 1
fi
done
IFS="$SAVED_IFS"
# All the programs have been treated. Call a2ps on the produced file
$a2ps $a2ps_options --footer="$footer" $tmp_file || exit 1
exit 0
|
