276 lines
9.9 KiB
Bash
276 lines
9.9 KiB
Bash
#! /bin/sh
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# texi2dvi --- smartly produce DVI files from texinfo sources
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# Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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# $Id: texi2dvi,v 1.1.1.1 1997/09/24 16:49:20 gwr Exp $
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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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# Commentary:
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# Author: Noah Friedman <friedman@prep.ai.mit.edu>
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# Please send bug reports, etc. to bug-texinfo@prep.ai.mit.edu
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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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# 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 with some bourne shells
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# are:
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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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# 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: 1.1.1.1 $'
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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: $progname {options} [file1] {file2 {...}}
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(version $version)
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Options are:
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-D, --debug Turn on shell debugging ($bq${bq}set -x$eq$eq).
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-h, --help You're looking at it.
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-v, --version Print version number.
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Arguments in brackets are required. Those in braces are optional.
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"
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# Initialize variables.
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# Don't use `unset' since old bourne shells don't have this command.
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# Instead, assign them an empty value.
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# Some of these, like TEX and TEXINDEX, may be inherited from the environment
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backup_extension=.bak
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debug=
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orig_pwd="`pwd`"
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verbose=
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texindex="${TEXINDEX-texindex}"
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tex="${TEX-tex}"
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# Save this so we can construct a new TEXINPUTS path for each file to be
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# processed.
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TEXINPUTS_orig="$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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case $# in 0) break ;; esac
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case "$1" in
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-D | --debug | --d* )
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debug=t
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shift
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;;
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-h | --help | --h* )
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echo "$usage" 1>&2
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exit 0
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;;
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-v | --version | --v* )
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echo "texi2dvi version $version" 1>&2
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exit 0
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;;
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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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-* )
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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: Use $bq--help$eq for a list of options."
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exit 1
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;;
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* )
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break
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;;
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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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case $# in
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0 )
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exec 1>&2
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echo "$progname: at least one file name is required as an argument."
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echo "$progname: Use $bq--help$eq for a description of command syntax."
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exit 2
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;;
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esac
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case "$debug" in t ) set -x ;; esac
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# Texify files
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for command_line_filename in ${1+"$@"} ; do
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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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# 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}:${TEXINPUTS_orig}"
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# "Unset" variables that might have values from previous iterations and
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# which won't be completely reset later.
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definite_index_files=""
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# See if file exists here. If it doesn't we're in trouble since, even
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# though the user may be able to reenter a valid filename at the tex
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# prompt (assuming they're attending the terminal), this script won't be
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# able to find the right index files and so forth.
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if test ! -r "${command_line_filename}" ; then
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echo "${progname}: ${command_line_filename}: No such file or permission denied." 1>&2
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continue;
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fi
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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 ${possible_index_files} ; do
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# If file is empty, forget it.
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if test ! -s "${this_file}" ; then
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continue;
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fi
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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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first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
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if test "${first_character}" = "\\" -o "${first_character}" = "'" ; then
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definite_index_files="${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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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 "${orig_index_files_sans_aux}" ; then
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${texindex} ${orig_index_files_sans_aux}
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fi
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if ${tex} ${command_line_filename} ; then # TeX run first time
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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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if test ! -s ${this_file} ; then
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continue;
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fi
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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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first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
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if test "${first_character}" = "\\" -o "${first_character}" = "'" ; then
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definite_index_files="${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/[ ]*$//;'`"
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# If old and new list don't at least have the same file list, then one
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# file or another has definitely changed.
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if test "${orig_index_files}" != "${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 ${new_index_files} ; do
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# cmp -s will return nonzero exit status if files differ.
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cmp -s "${this_file}" "${this_file}${backup_extension}"
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if test $? -ne 0 ; then
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# We only need to keep comparing until we find *one* that
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# differs, because we'll have to run texindex & tex no
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# matter what.
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index_files_changed_p=t
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break
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fi
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done
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fi
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# If index files have changed since TeX has been run, or if the aux
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# file wasn't present originally, run texindex and TeX again.
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if test "${index_files_changed_p}" ; then
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retval=0
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if test "${new_index_files_sans_aux}" ; then
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${texindex} ${new_index_files_sans_aux}
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retval=$?
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fi
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if test ${retval} -eq 0 ; then
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${tex} "${command_line_filename}"
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fi
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fi
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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 "${file_list}" ; then
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rm -f ${file_list}
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fi
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done
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# texi2dvi ends here
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