362 lines
14 KiB
Bash
Executable file
362 lines
14 KiB
Bash
Executable file
#! /bin/sh
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# texi2dvi --- smartly produce DVI files from texinfo sources
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# $Id$
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#
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# Copyright (C) 1992, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, you can either send email to this
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# program's maintainer or write to: The Free Software Foundation,
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# Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
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#
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# Commentary:
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#
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# Author: Noah Friedman <friedman@gnu.org>
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#
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# Please send bug reports, etc. to bug-texinfo@gnu.org.
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# If possible, please send a copy of the output of the script called with
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# the `--debug' option when making a bug report.
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#
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# In the interest of general portability, some common bourne shell
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# constructs were avoided because they weren't guaranteed to be available
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# in some earlier implementations. I've tried to make this program as
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# portable as possible. Welcome to unix, where the lowest common
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# denominator is rapidly diminishing.
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#
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# Among the more interesting lossages I noticed among Bourne shells:
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# * No shell functions.
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# * No `unset' builtin.
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# * `shift' cannot take a numeric argument, and signals an error if
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# there are no arguments to shift.
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#
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# Code:
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# Name by which this script was invoked.
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progname=`echo "$0" | sed -e 's/[^\/]*\///g'`
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# This string is expanded by rcs automatically when this file is checked out.
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rcs_revision='$Revision$'
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version=`set - $rcs_revision; echo $2`
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# To prevent hairy quoting and escaping later.
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bq='`'
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eq="'"
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usage="Usage: $0 [OPTION]... FILE...
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Run a Texinfo document through TeX.
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Options:
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-b, --batch No interaction (\nonstopmode in TeX).
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-c, --clean Remove all auxiliary files.
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-D, --debug Turn on shell debugging ($bq${bq}set -x$eq$eq).
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-t, --texinfo CMD Insert CMD after @setfilename before running TeX.
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--verbose Report on what is done.
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-h, --help Display this help and exit.
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-v, --version Display version information and exit.
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The values of the TEX, TEXINDEX, and MAKEINFO environment variables are
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used to run those commands, if they are set.
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Email bug reports to bug-texinfo@gnu.org."
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# Initialize variables.
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# Don't use `unset' since old bourne shells don't have this command.
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# Instead, assign them an empty value.
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# Some of these, like TEX and TEXINDEX, may be inherited from the environment.
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backup_extension=.bak # these files get deleted if all goes well.
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batch=
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clean=
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debug=
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orig_pwd="`pwd`"
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textra=
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verbose=false
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makeinfo="${MAKEINFO-makeinfo}"
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texindex="${TEXINDEX-texindex}"
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tex="${TEX-tex}"
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# Save this so we can construct a new TEXINPUTS path for each file.
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TEXINPUTS_orig="$TEXINPUTS"
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export TEXINPUTS
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# Parse command line arguments.
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# Make sure that all wildcarded options are long enough to be unambiguous.
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# It's a good idea to document the full long option name in each case.
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# Long options which take arguments will need a `*' appended to the
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# canonical name to match the value appended after the `=' character.
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while :; do
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test $# -eq 0 && break
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case "$1" in
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-b | --batch | --b* ) batch=t; shift ;;
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-c | --clean | --c* ) clean=t; shift ;;
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-D | --debug | --d* ) debug=t; shift ;;
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-h | --help | --h* ) echo "$usage"; exit 0 ;;
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# OK, we should do real option parsing here, but be lazy for now.
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-t | --texinfo | --t*) shift; textra="$textra $1"; shift ;;
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-v | --vers* )
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echo "$progname (GNU Texinfo 3.12) $version"
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echo "Copyright (C) 1998 Free Software Foundation, Inc.
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There is NO warranty. You may redistribute this software
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under the terms of the GNU General Public License.
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For more information about these matters, see the files named COPYING."
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exit 0 ;;
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--verb* ) verbose=echo; shift ;;
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-- ) # Stop option processing
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shift
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break ;;
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-* )
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case "$1" in
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--*=* ) arg=`echo "$1" | sed -e 's/=.*//'` ;;
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* ) arg="$1" ;;
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esac
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exec 1>&2
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echo "$progname: Unknown or ambiguous option $bq$arg$eq."
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echo "$progname: Try $bq--help$eq for more information."
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exit 1 ;;
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* ) break ;;
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esac
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done
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# See if there are any command line args left (which will be interpreted as
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# filename arguments).
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if test $# -eq 0; then
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exec 1>&2
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echo "$progname: At least one file name is required as an argument."
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echo "$progname: Try $bq--help$eq for more information."
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exit 2
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fi
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test "$debug" = t && set -x
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# Texify files
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for command_line_filename in ${1+"$@"}; do
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$verbose "Processing $command_line_filename ..."
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# See if file exists. If it doesn't we're in trouble since, even
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# though the user may be able to reenter a valid filename at the tex
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# prompt (assuming they're attending the terminal), this script won't
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# be able to find the right index files and so forth.
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if test ! -r "${command_line_filename}"; then
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echo "$0: Could not read ${command_line_filename}." >&2
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continue
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fi
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# Roughly equivalent to `dirname ...`, but more portable
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directory="`echo ${command_line_filename} | sed 's/\/[^\/]*$//'`"
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filename_texi="`basename ${command_line_filename}`"
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# Strip off the last extension part (probably .texinfo or .texi)
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filename_noext="`echo ${filename_texi} | sed 's/\.[^.]*$//'`"
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# Use same basename since we want to generate aux files with the same
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# basename as the manual. Use extension .texi for the temp file so
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# that TeX will ignore it. Thus, we must use a subdirectory.
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#
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# Output the macro-expanded file to here. The vastly abbreviated
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# temporary directory name is so we don't have collisions on 8.3 or
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# 14-character filesystems.
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tmp_dir=${TMPDIR-/tmp}/txi2d.$$
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filename_tmp=$tmp_dir/$filename_noext.texi
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# Output the file with the user's extra commands to here.
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tmp_dir2=${tmp_dir}.2
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filename_tmp2=$tmp_dir2/$filename_noext.texi
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mkdir $tmp_dir $tmp_dir2
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# Always remove the temporary directories.
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trap "rm -rf $tmp_dir $tmp_dir2" 1 2 15
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# If directory and file are the same, then it's probably because there's
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# no pathname component. Set dirname to `.', the current directory.
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if test "z${directory}" = "z${command_line_filename}"; then
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directory=.
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fi
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# Source file might @include additional texinfo sources. Put `.' and
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# directory where source file(s) reside in TEXINPUTS before anything
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# else. `.' goes first to ensure that any old .aux, .cps, etc. files in
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# ${directory} don't get used in preference to fresher files in `.'.
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TEXINPUTS=".:${directory}:${TEXINPUTS_orig}"
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# Expand macro commands in the original source file using Makeinfo;
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# the macro syntax bfox implemented is impossible to implement in TeX.
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# Always use `end' footnote style, since the `separate' style
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# generates different output (arguably this is a bug in -E).
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# Discard main info output, the user asked to run TeX, not makeinfo.
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# Redirect output to /dev/null to throw away `Making info file...' msg.
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$verbose "Macro-expanding $command_line_filename to $filename_tmp ..."
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$makeinfo --footnote-style=end -E $filename_tmp -o /dev/null \
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$command_line_filename >/dev/null
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# But if there were no macros, or makeinfo failed for some reason,
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# just use the original file. (It shouldn't make any difference, but
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# let's be safe.)
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if test $? -ne 0 || cmp -s $filename_tmp $command_line_filename; then
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$verbose "Reverting to $command_line_filename ..."
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cp -p $command_line_filename $filename_tmp
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fi
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filename_input=$filename_tmp
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dirname_input=$tmp_dir
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# Used most commonly for @finalout, @smallbook, etc.
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if test -n "$textra"; then
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$verbose "Inserting extra commands: $textra."
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sed '/^@setfilename/a\
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'"$textra" $filename_input >$filename_tmp2
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filename_input=$filename_tmp2
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dirname_input=$tmp_dir2
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fi
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# If clean mode was specified, then move to the temporary directory.
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if test "$clean" = t; then
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$verbose "cd $dirname_input"
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cd $dirname_input || exit 1
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filename_input=`basename $filename_input`
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fi
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while true; do # will break out of loop below
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# "Unset" variables that might have values from previous iterations and
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# which won't be completely reset later.
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definite_index_files=
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# Find all files having root filename with a two-letter extension,
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# determine whether they're really index files, and save them. Foo.aux
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# is actually the cross-references file, but we need to keep track of
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# that too.
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possible_index_files="`eval echo ${filename_noext}.?? ${filename_noext}.aux`"
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for this_file in ${possible_index_files}; do
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# If file is empty, forget it.
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test -s "${this_file}" || continue
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# Examine first character of file. If it's not suitable to be an
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# index or xref file, don't process it.
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first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
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if test "x${first_character}" = "x\\" \
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|| test "x${first_character}" = "x'"; then
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definite_index_files="${definite_index_files} ${this_file}"
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fi
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done
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orig_index_files="${definite_index_files}"
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orig_index_files_sans_aux="`echo ${definite_index_files} \
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| sed 's/'${filename_noext}'\.aux//;
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s/^[ ]*//;s/[ ]*$//;'`"
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# Now save copies of original index files so we have some means of
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# comparison later.
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$verbose "Backing up current index files: $orig_index_files ..."
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for index_file_to_save in ${orig_index_files}; do
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cp "${index_file_to_save}" "${index_file_to_save}${backup_extension}"
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done
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# Run texindex on current index files. If they already exist, and
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# after running TeX a first time the index files don't change, then
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# there's no reason to run TeX again. But we won't know that if the
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# index files are out of date or nonexistent.
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if test -n "${orig_index_files_sans_aux}"; then
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$verbose "Running $texindex $orig_index_files_sans_aux ..."
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${texindex} ${orig_index_files_sans_aux}
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fi
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# Finally, run TeX.
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if test "$batch" = t; then
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tex_mode='\nonstopmode'
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else
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tex_mode=
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fi
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$verbose "Running $tex $filename_input ..."
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cmd="$tex $tex_mode \\input $filename_input"
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$cmd
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# Check if index files changed.
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#
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definite_index_files=
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# Get list of new index files.
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possible_index_files="`eval echo ${filename_noext}.?? ${filename_noext}.aux`"
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for this_file in ${possible_index_files}; do
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# If file is empty, forget it.
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test -s "${this_file}" || continue
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# Examine first character of file. If it's not a backslash or
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# single quote, then it's definitely not an index or xref file.
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# (Will have to check for @ when we switch to Texinfo syntax in
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# all these files...)
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first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
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if test "x${first_character}" = "x\\" \
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|| test "x${first_character}" = "x'"; then
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definite_index_files="${definite_index_files} ${this_file}"
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fi
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done
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new_index_files="${definite_index_files}"
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new_index_files_sans_aux="`echo ${definite_index_files} \
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| sed 's/'${filename_noext}'\.aux//;
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s/^[ ]*//;s/[ ]*$//;'`"
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# If old and new list don't at least have the same file list, then one
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# file or another has definitely changed.
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$verbose "Original index files =$orig_index_files"
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$verbose "New index files =$new_index_files"
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if test "z${orig_index_files}" != "z${new_index_files}"; then
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index_files_changed_p=t
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else
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# File list is the same. We must compare each file until we find a
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# difference.
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index_files_changed_p=
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for this_file in ${new_index_files}; do
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$verbose "Comparing index file $this_file ..."
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# cmp -s will return nonzero exit status if files differ.
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cmp -s "${this_file}" "${this_file}${backup_extension}"
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if test $? -ne 0; then
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# We only need to keep comparing until we find *one* that
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# differs, because we'll have to run texindex & tex no
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# matter what.
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index_files_changed_p=t
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$verbose "Index file $this_file differed:"
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test $verbose = echo \
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&& diff -c "${this_file}${backup_extension}" "${this_file}"
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break
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fi
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done
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fi
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# If index files have changed since TeX has been run, or if the aux
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# file wasn't present originally, run texindex and TeX again.
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if test "${index_files_changed_p}"; then :; else
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# Nothing changed. We're done with TeX.
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break
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fi
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done
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# If we were in clean mode, compilation was in a tmp directory.
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# Copy the DVI file into the directory where the compilation
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# has been done. (The temp dir is about to get removed anyway.)
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# We also return to the original directory so that
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# - the next file is processed in correct conditions
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# - the temporary file can be removed
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if test -n "$clean"; then
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$verbose "Copying DVI file from `pwd` to $orig_pwd"
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cp -p $filename_noext.dvi $orig_pwd
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cd $orig_pwd || exit 1
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fi
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# Generate list of files to delete, then call rm once with the entire
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# list. This is significantly faster than multiple executions of rm.
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file_list=
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for file in ${orig_index_files}; do
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file_list="${file_list} ${file}${backup_extension}"
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done
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if test -n "${file_list}"; then
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$verbose "Removing $file_list $tmp_dir $tmp_dir2 ..."
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rm -f ${file_list}
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rm -rf $tmp_dir $tmp_dir2
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fi
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done
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$verbose "$0 done."
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true # exit successfully.
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