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Diffstat (limited to 'doc/texi2dvi')
| -rw-r--r-- | doc/texi2dvi | 1996 |
1 files changed, 1996 insertions, 0 deletions
diff --git a/doc/texi2dvi b/doc/texi2dvi new file mode 100644 index 0000000..17f4355 --- /dev/null +++ b/doc/texi2dvi @@ -0,0 +1,1996 @@ +#! /bin/sh +# texi2dvi --- produce DVI (or PDF) files from Texinfo (or (La)TeX) sources. +# +# Copyright 1992-2019 Free Software Foundation, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, +# or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# Originally written by Noah Friedman. +# +# Please send bug reports, etc. to bug-texinfo@gnu.org. +# If possible, please send a copy of the output of the script called with +# the `--debug' option when making a bug report. + +test -f /bin/ksh && test -z "$RUNNING_KSH" \ + && { UNAMES=`uname -s`; test "x$UNAMES" = xULTRIX; } 2>/dev/null \ + && { RUNNING_KSH=true; export RUNNING_KSH; exec /bin/ksh $0 ${1+"$@"}; } +unset RUNNING_KSH + +# No failure shall remain unpunished. +set -e + +# In case the default sed doesn't suffice. +: ${SED=sed} + +program=`echo $0 | $SED -e 's!.*/!!'` + +build_mode=${TEXI2DVI_BUILD_MODE:-local} +build_dir=${TEXI2DVI_BUILD_DIRECTORY:-.} + +orig_pwd=`pwd` + +# Initialize variables for option overriding and otherwise. +# Don't use `unset' since old bourne shells don't have this command. +# Instead, assign them an empty value. +action=compile +debug=false +escape="\\" +expand=false # true for expansion via makeinfo +includes= +line_error=true # pass --file-line-error to TeX +max_iters=7 # when to quit +oname= # --output +out_lang=dvi +quiet=false # let the tools' message be displayed +set_language= +src_specials= +shell_escape= +latex2html=hevea # or set to tex4ht +textra= # Extra TeX commands to insert in the input file. +txiprereq=19990129 # minimum texinfo.tex version with macro expansion +verb=false # true for verbose mode +translate_file= # name of charset translation file + +# We have to initialize IFS to space tab newline since we save and +# restore IFS and apparently POSIX allows stupid/broken behavior with +# empty-but-set IFS. +# http://lists.gnu.org/archive/html/automake-patches/2006-05/msg00008.html +# We need space, tab and newline, in precisely that order. And don't leave +# trailing blanks. +space=' ' +tab=' ' +newline=' +' +IFS="$space$tab$newline" + +: ${EGREP=egrep} + +# Systems which define $COMSPEC or $ComSpec use semicolons to separate +# directories in TEXINPUTS -- except for Cygwin and Msys, where COMSPEC +# might be inherited, but : is used. + +# In the case of Msys, uname returns a value derived from MSYSTEM, as +# MSYSTEM is user configurable, it is not so safe to use it to detect +# Msys. It is safer to use OSTYPE, this is why we set MSYSTEM to +# $OSTYPE before calling uname +if test -n "$COMSPEC$ComSpec" \ + && MSYSTEM=$OSTYPE uname | $EGREP -iv 'cygwin|msys' >/dev/null; then + path_sep=";" +else + path_sep=":" +fi + + +# Pacify verbose cds. +CDPATH=${ZSH_VERSION+.}$path_sep + + +# Now we define numerous functions, with no other executable code. +# The main program is at the end of the file. + + +# Standard help and version functions. +# +# usage - display usage and exit successfully. +usage () +{ + cat <<EOF +Usage: $program [OPTION]... FILE... + or: texi2pdf [OPTION]... FILE... + or: pdftexi2dvi [OPTION]... FILE... + +Run each Texinfo or (La)TeX FILE through TeX in turn until all +cross-references are resolved, building all indices. The directory +containing each FILE is searched for included files. The suffix of FILE +is used to determine its language ((La)TeX or Texinfo). To process +(e)plain TeX files, set the environment variable LATEX=tex. + +When invoked as \`texi2pdf' or given the option --pdf generate PDF output. +Otherwise, generate DVI. + +General options: + -D, --debug turn on shell debugging (set -x) + -h, --help display this help and exit successfully + -o, --output=OFILE leave output in OFILE; only one input FILE is allowed + -q, --quiet no output unless errors + -v, --version display version information and exit successfully + -V, --verbose report on what is done + --max-iterations=N don't process files more than N times [$max_iters] + --mostly-clean remove auxiliary files or directories from + previous runs (but not the output) + +Output format: + --dvi output a DVI file [default] + --dvipdf output a PDF file via DVI (using a dvi-to-pdf program) + --html output an HTML file from LaTeX, using HeVeA + --info output an Info file from LaTeX, using HeVeA + -p, --pdf use pdftex or pdflatex for processing + --ps output a PostScript file via DVI (using dvips) + --text output a plain text file from LaTeX, using HeVeA + +TeX tuning: + -E, --expand macro expansion using makeinfo + -I DIR search DIR for Texinfo files + -l, --language=LANG specify LANG for FILE, either latex or texinfo + --no-line-error do not pass --file-line-error to TeX + --shell-escape pass --shell-escape to TeX + --src-specials pass --src-specials to TeX + --translate-file=FILE use given charset translation file for TeX + -t, --command=CMD insert CMD in copy of input file + +Build modes: + --build=MODE specify the treatment of auxiliary files [$build_mode] + --tidy same as --build=tidy + -c, --clean same as --build=clean + --build-dir=DIR specify where the tidy compilation is performed; + implies --tidy; + defaults to TEXI2DVI_BUILD_DIRECTORY [$build_dir] + +The MODE specifies where the TeX compilation takes place, and, as a +consequence, how auxiliary files are treated. The build mode can also +be set using the environment variable TEXI2DVI_BUILD_MODE. + +Valid values of MODE are: + \`local' compile in the current directory, leaving all the auxiliary + files around. This is the traditional TeX use. + \`tidy' compile in a local *.t2d directory, where the auxiliary files + are left. Output files are copied back to the original file. + \`clean' same as \`tidy', but remove the auxiliary directory afterwards. + Every compilation therefore requires the full cycle. + +The values of these environment variables are used to run the +corresponding commands, if they are set: + + BIBER BIBTEX DVIPDF DVIPS EGREP HEVEA LATEX MAKEINDEX MAKEINFO + PDFLATEX PDFTEX SED T4HT TEX TEX4HT TEXINDEX TEXINDY THUMBPDF_CMD + +Regarding --dvipdf, if DVIPDF is not set in the environment, the +following programs are looked for (in this order): dvipdfmx dvipdfm +dvipdf dvi2pdf dvitopdf. + +If Texinfo is installed on your site, then the command + + info texi2dvi + +should give you access to more documentation. + +Report bugs to bug-texinfo@gnu.org, +general questions and discussion to help-texinfo@gnu.org. +GNU Texinfo home page: <http://www.gnu.org/software/texinfo/> +General help using GNU software: <http://www.gnu.org/gethelp/> +EOF + exit 0 +} + + +# version - Display version info and exit successfully. +version () +{ + cat <<EOF +texi2dvi (GNU Texinfo 6.7) + +Copyright (C) 2019 Free Software Foundation, Inc. +License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. +EOF + exit 0 +} + + +# Generic auxiliary functions. + +# Used to access files and directories after we have changed directory +# (for --tidy). +rel= + +# Change directory, updating some relative paths. +cd_dir () +{ + cd "$1" + + # Check if argument or input file is absolute, and if so, make all the path + # variables absolute. + use_absolute=false + case $1 in + [\\/]* | ?:[\\/]*) # absolute path + use_absolute=true ;; + esac + case $in_input in + [\\/]* | ?:[\\/]*) + use_absolute=true ;; + esac + + if $use_absolute ; then + for cdd_dir in work_build workdir t2ddir work_bak in_input in_dir; do + eval "$cdd_dir=\`absolute \$$cdd_dir\`" + done + return + fi + + # Replace each path component with ".." and add a single trailing slash. + rel=`echo "$1" | \$SED -e 's/[^/\\][^/\\]*/../g' -e 's/[/\\]*$/\//'` +} + +# cd_orig - Return to the original directory. +cd_orig () +{ + # In case $orig_pwd is on a different drive (for DOS). + cd / + + # Return to the original directory so that + # - the next file is processed in correct conditions + # - the temporary file can be removed + cd "$orig_pwd" || exit 1 + + rel= +} + + +# func_dirname FILE - Return the directory part of FILE. +func_dirname () +{ + dirname "$1" 2>/dev/null \ + || { echo "$1" | $SED 's!/[^/]*$!!;s!^$!.!'; } +} + + +# noext FILE - Return FILE with one extension removed: +# foo.bar.baz -> foo.bar +noext () +{ + echo "$1" | $SED -e 's/\.[^/.][^/.]*$//' +} + + +# absolute NAME - Return an absolute path to NAME. +absolute () +{ + case $1 in + [\\/]* | ?:[\\/]*) + # Absolute paths don't need to be expanded. + echo "$1" + ;; + *) absolute_slashes=`echo "$1" | $SED -n 's,.*[^/]\(/*\)$,\1,p'` + absolute_rel=$orig_pwd/`func_dirname "$1"` + if test -d "$absolute_rel"; then + (cd "$absolute_rel" 2>/dev/null \ + && absolute_name=`pwd`/`basename "$1"`"$absolute_slashes" + echo "$absolute_name") + else + error 1 "not a directory: $absolute_rel" + fi + ;; + esac +} + + +# ensure_dir DIR1 DIR2... - Make sure given directories exist. +ensure_dir () +{ + for dir + do + # Beware that in parallel builds we may have several concurrent + # attempts to create the directory. So fail only if "mkdir" + # failed *and* the directory still does not exist. + test -d "$dir" \ + || mkdir "$dir" \ + || test -d "$dir" \ + || error 1 "cannot create directory: $dir" + done +} + + +# error EXIT_STATUS LINE1 LINE2... - Report an error and exit with +# failure if EXIT_STATUS is non-null. +error () +{ + error_status="$1" + shift + report "$@" + if test "$error_status" != 0; then + exit $error_status + fi +} + + +# findprog PROG - Return true if PROG is somewhere in PATH, else false. +findprog () +{ + saveIFS="$IFS" + IFS=$path_sep # break path components at the path separator + for dir in $PATH; do + IFS=$saveIFS + # The basic test for an executable is `test -f $f && test -x $f'. + # (`test -x' is not enough, because it can also be true for directories.) + # We have to try this both for $1 and $1.exe. + # + # Note: On Cygwin and DJGPP, `test -x' also looks for .exe. On Cygwin, + # also `test -f' has this enhancement, but not on DJGPP. (Both are + # design decisions, so there is little chance to make them consistent.) + # Thusly, it seems to be difficult to make use of these enhancements. + # + if { test -f "$dir/$1" && test -x "$dir/$1"; } \ + || { test -f "$dir/$1.exe" && test -x "$dir/$1.exe"; }; then + return 0 + fi + done + return 1 +} + +# report LINE1 LINE2... - Echo each argument to stderr. +report () +{ + for i in "$@" + do + echo >&2 "$0: $i" + done +} + + +# run COMMAND-LINE - Run COMMAND-LINE verbosely, catching errors as failures. +run () +{ + verbose "Running $@" + "$@" 2>&5 1>&2 \ + || error 1 "$1 failed" +} + + +# verbose WORD1 WORD2... - Echo concatenated WORDs to stderr, if $verb. +verbose () +{ + if $verb; then + echo >&2 "$0: $@" + fi +} + + +# Handling lists. +# +# list_append LIST-NAME ELEM - Append ELEM to (the contents of) LIST-NAME. +list_append () +{ + list_name="$1" + shift + eval set X \$$list_name "$@" + shift + eval $list_name=\""$@"\" +} + + +# list_concat_dirs LIST-NAME DIR-LIST - Append to LIST-NAME all the +# components (including empty ones) from the $path_sep-separated list +# DIR-LIST. Make the paths absolute. +list_concat_dirs () +{ + lcd_list="$1" + # Empty path components are meaningful to tex. We rewrite them as + # `EMPTY' so they don't get lost when we split on $path_sep. + # Hopefully no one will have an actual directory named EMPTY. + lcd_replace_EMPTY="-e 's/^$path_sep/EMPTY$path_sep/g' \ + -e 's/$path_sep\$/${path_sep}EMPTY/g' \ + -e 's/$path_sep$path_sep/${path_sep}EMPTY${path_sep}/g'" + save_IFS=$IFS + IFS=$path_sep + set x `echo "$2" | eval $SED $lcd_replace_EMPTY`; shift + IFS=$save_IFS + for lcd_dir + do + case $lcd_dir in + EMPTY) + list_append $lcd_list "" + ;; + *) + if test -d $lcd_dir; then + dir=`absolute "$lcd_dir"` + list_append $lcd_list "$lcd_dir" + fi + ;; + esac + done +} + + +# list_prefix LIST-NAME SEP -> STRING - Return string with each element +# of LIST-NAME preceded by SEP. +list_prefix () +{ + lp_separator="$2" + eval set X \$$1 + shift + lp_result='' + for i + do + lp_result="$lp_result \"$lp_separator\" \"$i\"" + done + echo "$lp_result" +} + +# list_infix LIST-NAME SEP -> STRING - Same as list_prefix, but a separator. +list_infix () +{ + eval set X \$$1 + shift + save_IFS="$IFS" + IFS=$path_sep + echo "$*" + IFS=$save_IFS +} + +# list_dir_to_abs LIST-NAME - Convert list to using only absolute dir names. +# Currently unused, but should replace absolute_filenames some day. +list_dir_to_abs () +{ + ldta_list="$1" + eval set X \$$ldta_list + shift + ldta_result='' + for dir + do + dir=`absolute "$dir"` + test -d "$dir" || continue + ldta_result="$ldata_result \"$dir\"" + done + set X $ldta_result; shift + eval $ldta_list=\"$@\" +} + + +# Language auxiliary functions. +# +# out_lang_set LANG - set $out_lang to LANG (dvi, pdf, etc.), or error. +out_lang_set () +{ + case $1 in + dvi|dvipdf|html|info|pdf|ps|text) out_lang=$1;; + *) error 1 "invalid output format: $1";; + esac +} + +# out_lang_tex - Return the tex output language (DVI or PDF) for $out_lang. +out_lang_tex () +{ + case $out_lang in + dvi | ps | dvipdf ) echo dvi;; + pdf ) echo $out_lang;; + html | info | text ) echo $out_lang;; + *) error 1 "invalid out_lang: $1";; + esac +} + +# out_lang_ext - Return the extension for $out_lang (pdf, dvi, etc.). +out_lang_ext () +{ + case $out_lang in + dvipdf ) echo pdf;; + dvi | html | info | pdf | ps | text ) echo $out_lang;; + *) error 1 "invalid out_lang: $1";; + esac +} + + +# TeX file auxiliary functions. +# +# absolute_filenames TEX-PATH -> TEX-PATH - Convert relative paths to +# absolute, so we can run in another directory (e.g., in tidy build +# mode, or during the macro-support detection). +absolute_filenames () +{ + # Empty path components are meaningful to tex. We rewrite them as + # `EMPTY' so they don't get lost when we split on $path_sep. + # Hopefully no one will have an actual directory named EMPTY. + af_replace_empty="-e 's/^$path_sep/EMPTY$path_sep/g' \ + -e 's/$path_sep\$/${path_sep}EMPTY/g' \ + -e 's/$path_sep$path_sep/${path_sep}EMPTY${path_sep}/g'" + af_result=`echo "$1" | eval $SED $af_replace_empty` + save_IFS=$IFS + IFS=$path_sep + set x $af_result; shift + af_result= + af_path_sep= + for dir + do + case $dir in + EMPTY) + af_result=$af_result$af_path_sep + ;; + *) + if test -d "$dir"; then + af_result=$af_result$af_path_sep`absolute "$dir"` + else + # Even if $dir is not a directory, preserve it in the path. + # It might contain metacharacters that TeX will expand in + # turn, e.g., /some/path/{a,b,c}. This will not get the + # implicit absolutification of the path, but we can't help that. + af_result=$af_result$af_path_sep$dir + fi + ;; + esac + af_path_sep=$path_sep + done + echo "$af_result" +} + + +# output_base_name FILE - Return the name of FILE, possibly renamed to +# satisfy --output. FILE is local, i.e., without any directory part. +output_base_name () +{ + case $oname in + '') echo "$1";; + *) obn_out_noext=`noext "$oname"` + obn_file_ext=`echo "$1" | $SED 's/^.*\.//'` + echo "$obn_out_noext.$obn_file_ext" + ;; + esac +} + + +# destdir - Return the directory where the output is expected. +destdir () +{ + case $oname in + '') echo "$orig_pwd";; + *) dirname "$oname";; + esac +} + + +# move_to_dest FILE... - Move FILE(s) to the place where the user expects. +# Truly move it, that is, it must not remain in its build location +# unless that is also the output location. (Otherwise it might appear +# as an extra file in make distcheck.) +# +# FILE can be the principal output (in which case -o directly applies), +# or an auxiliary file with the same base name. +move_to_dest () +{ +# echo "move_to_dest $*, tidy=$tidy, oname=$oname" + + # If we built in place and have no output name, there is nothing to + # do, so just return. + case $tidy:$oname in + false:) return;; + esac + + for file + do + test -f "$file" \ + || error 1 "no such file or directory: $file" + case $tidy:$oname in + true:) mtd_destdir=$orig_pwd + mtd_destfile=$mtd_destdir/$file;; + true:*) mtd_destfile=`output_base_name "$file"` + mtd_destdir=`dirname "$mtd_destfile"`;; + false:*) mtd_destfile=$oname + mtd_destdir=`dirname "$mtd_destfile"`;; + esac + + # We want to compare the source location and the output location, + # and if they are different, do the move. But if they are the + # same, we must preserve the source. Since we can't assume + # stat(1) or test -ef is available, resort to comparing the + # directory names, canonicalized with pwd. We can't use cmp -s + # since the output file might not actually change from run to run; + # e.g., TeX DVI output is timestamped to only the nearest minute. + mtd_destdir=`cd "$mtd_destdir" && pwd` + mtd_destbase=`basename "$mtd_destfile"` + + mtd_sourcedir=`dirname "$file"` + mtd_sourcedir=`cd "$mtd_sourcedir" && pwd` + mtd_sourcebase=`basename "$file"` + + if test "$mtd_sourcedir/$mtd_sourcebase" != "$mtd_destdir/$mtd_destbase" + then + verbose "Moving $file to $mtd_destfile" + rm -f "$mtd_destfile" + mv "$file" "$mtd_destfile" + fi + done +} + + +# Managing xref files. +# +# aux_file_p FILE - Echo FILE if FILE is an aux file. +aux_file_p () +{ + test -f "$1" || return 0 + case $1 in + *.aux) echo "$1";; + *) return 0;; + esac +} + +# bibaux_file_p FILE - Echo FILE if FILE contains citation requests. +bibaux_file_p () +{ + test -s "$1" || return 0 + if (grep '^\\bibstyle[{]' "$1" \ + && grep '^\\bibdata[{]' "$1" \ + ## The following line is suspicious: fails when there + ## are citations in sub aux files. We need to be + ## smarter in this case. + ## && grep '^\\citation[{]' "$f" + ) >&6 2>&1; + then + echo "$1" + fi + return 0 +} + +# index_file_p FILE - Echo FILE if FILE is an index file. +index_file_p () +{ + test -f "$1" || return 0 + case $in_lang:$latex2html:`out_lang_tex`:`$SED '1q' "$1"` in + # When working with TeX4HT, *.idx are created by LaTeX. They must + # be processed to produce *.4ix, *.4dx files. The *.4dx file is + # passed to makeindex to produce the *.ind file. This sequence is + # handled by run_index, so we are only interested in the *.idx + # files, which have each "\indexentry" preceded by a + # "\beforeentry". + latex:tex4ht:html:"\\beforeentry {"*) echo $1;; + + # When index.sty is used, there is a space before the brace. + latex:*:*:"\\indexentry{"*|latex:*:*:"\\indexentry {"*) echo $1;; + + texinfo:*:*:"\\entry{"*) echo $1;; + texinfo:*:*:"@entry{"*) echo $1;; + # @entry is output from newer versions of texinfo.tex + esac + return 0 +} + +########### not used currently +# xref_file_p FILE - Return success if FILE is an xref file (indexes, +# tables and lists). +xref_file_p () +{ + test -f "$1" || return 1 + # If the file is not suitable to be an index or xref file, don't + # process it. It's suitable if the first character is a + # backslash or right quote or at, as long as the first line isn't + # \input texinfo. + case `$SED '1q' "$1"` in + "\\input texinfo"*) return 1;; + [\\''@]*) return 0;; + *) return 1;; + esac +} + + +# Used in generated_files_get +generated_files_get_from_log () +{ + if test -f "$1.log"; then + # Usually the output is like: \openout1 = `foobar.tex'. + # (including the final period) + # but luatex outputs: \openout1 = foobar.tex + # (no quotes, no period). + # So we have to make the punctuation optional. + grep '^\\openout[0-9]' "$1.log" \ + | $SED -e "s/\\\\openout[^=]*= *[\`']*//" \ + -e "s/'\.$//" + fi +} + +# Used in generated_files_get +generated_files_get_from_fls () +{ + if test -f "$1.fls"; then + grep '^OUTPUT ' "$1.fls" | cut -b 8- \ + | grep -v '\.dvi$' | grep -v '\.log$' | grep -v '\.pdf$' || true + fi +} + +# generated_files_get - Output the list of files generated by the TeX +# compilation. +generated_files_get () +{ + $generated_files_get_method "$in_noext" + if test $generated_files_get_method = generated_files_get_from_fls; then + if test -r "$in_noext.fl"; then + report 'WARNING!! The fl index may typeset as garbage!' # goes to stderr + report 'Try upgrading your version of texinfo.tex, or else try setting' + report 'the environment variable TEXI2DVI_USE_RECORDER to '\''no'\''.' +report 'Once you'\''ve done that, delete the file with an '\''fl'\'' extension.' + fi + fi +} + + +# xref_files_save - set xref_files_orig from xref_files_new, and save xref +# files in $work_bak. +xref_files_save () +{ + # Save copies of auxiliary files for later comparison. + xref_files_orig=$xref_files_new + if test -n "$xref_files_orig"; then + verbose "Backing up xref files: $xref_files_orig" + # The following line improves `cp $xref_files_orig "$work_bak"' + # by preserving the directory parts. Think of + # cp chap1/main.aux chap2/main.aux $work_bak. + # + # Users may have, e.g., --keep-old-files. Don't let this interfere. + # (Don't use unset for the sake of ancient shells.) + TAR_OPTIONS=; export TAR_OPTIONS + tar cf - $xref_files_orig | (cd "$rel$work_bak" && tar xf -) + fi + + # Remove auxiliary files in same directory as main input file. Otherwise, + # these will likely be read instead of those in the build dir. + if $tidy ; then + secondary_xref_files=`sorted_index_files` + for f in $xref_files_new $secondary_xref_files ; do + if test -f "$rel$in_dir/$f" ; then + remove $rel$in_dir/$f + fi + done + fi +} + + +# xref_files_changed - Return success if the xref files have changed +# since the previous run. +xref_files_changed () +{ + # LaTeX (and the package changebar) report in the LOG file if it + # should be rerun. This is needed for files included from + # subdirs, since texi2dvi does not try to compare xref files in + # subdirs. Performing xref files test is still good since LaTeX + # does not report changes in xref files. + if grep "Rerun to get" "$in_noext.log" >&6 2>&1; then + return 0 + fi + # Similarly, check for biblatex report of whether rerunning is needed. + if grep "biblatex.*(re)run" "$in_noext.log" >&6 2>&1; then + return 0 + fi + + # If old and new lists don't have the same file list, + # then something has definitely changed. + xref_files_new=`generated_files_get` + verbose "Original xref files = $xref_files_orig" + verbose "New xref files = $xref_files_new" + if test "x$xref_files_orig" != "x$xref_files_new"; then + return 0 + fi + + # Compare each file until we find a difference. + for this_file in $xref_files_new; do + verbose "Comparing xref file `echo $this_file | $SED 's|\./||g'` ..." + # cmp -s returns nonzero exit status if files differ. + if cmp -s "$this_file" "$rel$work_bak/$this_file"; then :; else + verbose "xref file `echo $this_file | $SED 's|\./||g'` differed ..." + if $debug; then + diff -u "$rel$work_bak/$this_file" "$this_file" + fi + return 0 + fi + done + + secondary_xref_files=`sorted_index_files` + verbose "Secondary xref files = $secondary_xref_files" + for this_file in $secondary_xref_files; do + if test -f $this_file; then :; else + verbose "$this_file missing ..." + return 0 + fi + done + + # No change. + return 1 +} + +# Running the TeX suite. +# +# Set tex_cmd variable, for running TeX. +make_tex_cmd () +{ + case $in_lang:$latex2html:`out_lang_tex` in + latex:*:dvi|latex:tex4ht:html) + tex=${LATEX:-latex};; + latex:*:pdf) + tex=${PDFLATEX:-pdflatex};; + texinfo:*:dvi) + # MetaPost also uses the TEX environment variable. If the user + # has set TEX=latex for that reason, don't bomb out. + case $TEX in + *latex) tex=tex;; # don't bother trying to find etex + *) tex=$TEX + esac;; + texinfo:*:pdf) tex=$PDFTEX;; + *) error 1 "$out_lang not supported for $in_lang";; + esac + + # Beware of aux files in subdirectories that require the + # subdirectory to exist. + case $in_lang:$tidy in + latex:true) + $SED -n 's|^[ ]*\\include{\(.*\)/.*}.*|\1|p' "$in_input" | + sort -u | + while read d + do + ensure_dir "$work_build/$d" + done + ;; + esac + + # Note that this will be used via an eval: quote properly. + tex_cmd="$tex" + + # If possible, make TeX report error locations in GNU format. + if $line_error; then + if test "${tex_help:+set}" != set; then + # Go to a temporary directory to try --help, since old versions that + # don't accept --help will generate a texput.log. + tex_help_dir=$t2ddir/tex_help + ensure_dir "$tex_help_dir" + tex_help=`cd "$tex_help_dir" >&6 && $tex --help </dev/null 2>&1 || true` + fi + # The mk program and perhaps others want to parse TeX's + # original error messages. + case $tex_help in + *file-line-error*) tex_cmd="$tex_cmd --file-line-error";; + esac + fi + + # Tell TeX about -recorder option, if specified + # recorder_option_maybe is in { " -recorder", "" } + tex_cmd="$tex_cmd$recorder_option_maybe" + + + # Tell TeX about TCX file, if specified. + test -n "$translate_file" \ + && tex_cmd="$tex_cmd --translate-file=$translate_file" + + # Tell TeX to make source specials (for backtracking from output to + # source, given a sufficiently smart editor), if specified. + test -n "$src_specials" && tex_cmd="$tex_cmd $src_specials" + + # Tell TeX to allow running external executables + test -n "$shell_escape" && tex_cmd="$tex_cmd $shell_escape" + + # Run without interaction. + # \batchmode does not show terminal output at all, so we don't + # want that. And even in batch mode, TeX insists on having input + # from the user. Close its stdin to make it impossible. + tex_cmd="$tex_cmd </dev/null '${escape}nonstopmode'" +} + + +# run_tex - Run TeX, taking care of errors and logs. +run_tex () +{ + # Check for any unusual characters in the filename. + # However, >, \ and any whitespace characters are not supported + # filenames. + in_input_funnies=`echo "$in_input" \ + | $SED -e 's![^}#$%&^_{~]!!g' -e 's!\(.\)!\1\'' +!g' | uniq` + + if test -n "$in_input_funnies" ; then + # Make > an end group character, as it's unlikely to appear in + # a filename. + tex_cmd="$tex_cmd '${escape}bgroup${escape}catcode62=2${escape}relax'" + + # If the filename has funny characters, change the TeX category codes of + # some characters within a group, and use \expandafter to input the file + # outside of the group. + for w in $in_input_funnies ; do + tex_cmd="$tex_cmd '${escape}catcode\`${escape}$w=12${escape}relax'" + done + + # Set \toks0 to "\input FILENAME\relax" + tex_cmd="$tex_cmd '${escape}toks0${escape}bgroup${escape}input' '$rel$in_input' '${escape}relax>" + + # Expand \toks0 after the end of the group + tex_cmd="$tex_cmd${escape}expandafter${escape}egroup" + tex_cmd="$tex_cmd${escape}the${escape}toks0${escape}relax'" + else + # In the case of a simple filename, just pass the filename + # with no funny tricks. + tex_cmd="$tex_cmd '${escape}input' '$rel$in_input'" + fi + + verbose "$0: Running $tex_cmd ..." + if (eval "$tex_cmd" >&5); then + case $out_lang in + dvi | pdf ) move_to_dest "$in_noext.$out_lang";; + esac + else + tex_failed=true + fi +} + + +# run_bibtex - Run bibtex (or biber) on current file +# - if its input (AUX) exists, +# - or if some citations are missing (LOG contains `Citation'), +# - or if the LOG complains of a missing .bbl. +# +# Don't try to be too smart: +# 1. Running bibtex only if the bbl file exists and is older than +# the LaTeX file is wrong, since the document might include files +# that have changed. +# +# 2. Because there can be several AUX (if there are \include's), +# but a single LOG, looking for missing citations in LOG is +# easier, though we take the risk of matching false messages. +run_bibtex () +{ + case $in_lang in + latex) bibtex=${BIBTEX:-bibtex};; + texinfo) return;; + esac + + # "Citation undefined" is for LaTeX, "Undefined citation" for btxmac.tex. + # The no .aux && \bibdata test is also for btxmac, in case it was the + # first run of a bibtex-using document. Otherwise, it's possible that + # bibtex would never be run. + if test -r "$in_noext.aux" \ + && test -r "$in_noext.log" \ + && ( (grep 'Warning:.*Citation.*undefined' "$in_noext.log" \ + || grep '.*Undefined citation' "$in_noext.log" \ + || grep 'No file .*\.bbl\.' "$in_noext.log") \ + || (grep 'No \.aux file' "$in_noext.log" \ + && grep '^\\bibdata' "$in_noext.aux") ) \ + >&6 2>&1; \ + then + bibtex_aux=`filter_files bibaux_file_p` + for f in $bibtex_aux; do + run $bibtex "$f" + done + fi + + # biber(+biblatex) check. + if test -r "$in_noext.bcf" \ + && grep '</bcf:controlfile>' "$in_noext.bcf" >/dev/null; then + run ${BIBER:-biber} "$in_noext" + fi +} + + +# filter_file PREDICATE - Go through the list of files in xref_files_new +# and use PREDICATE on each one to optionally print it or print other files +# based on the filename. +filter_files () +{ + test -n "$xref_files_new" || return 0 + echo "$xref_files_new" | + # Filter existing files matching the criterion. + # + while read file; do + $1 "$file" + done | + sort | + # Some files are opened several times, e.g., listings.sty's *.vrb. + uniq +} + +# run_index - Run texindex (or makeindex or texindy) on current index +# files. If they already exist, and after running TeX a first time the +# index files don't change, then there's no reason to run TeX again. +# But we won't know that if the index files are out of date or nonexistent. +run_index () +{ + index_files=`filter_files index_file_p` + test -n "$index_files" \ + || return 0 + + : ${MAKEINDEX:=makeindex} + : ${TEXINDEX:=texindex} + : ${TEXINDY:=texindy} + + case $in_lang:$latex2html:`out_lang_tex` in + latex:tex4ht:html) + for index_file in $index_files + do + index_noext=`noext "$index_file"` + run tex \ + '\def\filename{{'"$index_noext"'}{idx}{4dx}{ind}} + \input idxmake.4ht' + run $MAKEINDEX -o $index_noext.ind $index_noext.4dx + done + ;; + + latex:*) + if $TEXINDY --version >&6 2>&1; then + run $TEXINDY $index_files + else + run $MAKEINDEX $index_files + fi + ;; + + texinfo:*) + run $TEXINDEX $index_files + ;; + esac +} + + +# run_tex4ht - Run the last two phases of TeX4HT: tex4ht extracts the +# HTML from the instrumented DVI file, and t4ht converts the figures and +# installs the files when given -d. +# +# Because knowing exactly which files are created is complex (in +# addition the names are not simple to compute), which makes it +# difficult to install the output files in a second step, we +# tell t4ht to install the output files. +run_tex4ht () +{ + case $in_lang:$latex2html:`out_lang_tex` in + latex:tex4ht:html) + : ${TEX4HT:=tex4ht} ${T4HT:=t4ht} + run "$TEX4HT" "-f/$in_noext" + # Do not remove the / after the destdir. + run "$T4HT" "-d`destdir`/" "-f/$in_noext" + ;; + esac +} + + +# run_thumbpdf - Run thumbpdf. +run_thumbpdf () +{ + if test `out_lang_tex` = pdf \ + && test -r "$in_noext.log" \ + && grep 'thumbpdf\.sty' "$in_noext.log" >&6 2>&1; \ + then + thumbpdf=${THUMBPDF_CMD:-thumbpdf} + thumbcmd="$thumbpdf $in_dir/$in_noext" + verbose "Running $thumbcmd ..." + if $thumbcmd >&5; then + run_tex + else + report "$thumbpdf exited with bad status." \ + "Ignoring its output." + fi + fi +} + + +# run_dvipdf FILE.dvi - Convert FILE.dvi to FILE.pdf. +run_dvipdf () +{ + # Find which dvi->pdf program is available. + if test -n "$DVIPDF"; then + dvipdf=$DVIPDF # user envvar, use it without checking + + elif test -z "$dvipdf"; then + for i in dvipdfmx dvipdfm dvipdf dvi2pdf dvitopdf; do + if findprog $i; then + dvipdf=$i + fi + done + fi + # These tools have varying interfaces, some 'input output', others + # 'input -o output'. They all seem to accept 'input' only, + # outputting using the expected file name. + run $dvipdf "$1" + if test ! -f `echo "$1" | $SED -e 's/\.dvi$/.pdf/'`; then + error 1 "cannot find output file" + fi +} + +# run_tex_suite - Run the TeX tools until a stable point is reached. +run_tex_suite () +{ + make_tex_cmd + + # Move to the working directory. + if $tidy; then + verbose "cd $work_build" + cd_dir "$work_build" || exit 1 + fi + + # Count the number of cycles. + suite_cycle=0 + + # Start by checking the log files for what files were created last + # time. This will mean that if they don't change, we finish in 1 cycle. + xref_files_new=`generated_files_get` + xref_files_save + + while :; do + # check for (probably) LaTeX loop (e.g. varioref) + if test $suite_cycle -eq "$max_iters"; then + error 0 "Maximum of $max_iters cycles exceeded" + break + fi + + # report progress + suite_cycle=`expr $suite_cycle + 1` + verbose "Cycle $suite_cycle for $command_line_filename" + + tex_failed=false + run_core_conversion + xref_files_changed || break + xref_files_save + + # We run bibtex first, because it's more likely for the indexes + # to change after bibtex is run than the reverse, though either + # would be rare. + run_bibtex + run_index + done + + if $tex_failed ; then + # TeX failed, and the xref files did not change. + error 1 "$tex exited with bad status, quitting." + fi + + # If we were using thumbpdf and producing PDF, then run thumbpdf + # and TeX one last time. + run_thumbpdf + + # If we are using tex4ht, call it. + run_tex4ht + + # Install the result if we didn't already (i.e., if the output is + # dvipdf or ps). + case $latex2html:$out_lang in + *:dvipdf) + run_dvipdf "$in_noext.`out_lang_tex`" + move_to_dest "$in_noext.`out_lang_ext`" + ;; + *:ps) + : ${DVIPS:=dvips} + run $DVIPS -o "$in_noext.`out_lang_ext`" "$in_noext.`out_lang_tex`" + move_to_dest "$in_noext.`out_lang_ext`" + ;; + esac + + cd_orig +} + + +# TeX processing auxiliary tools. +# +# run_makeinfo - Expand macro commands in the original source file using +# Makeinfo. Always use `end' footnote style, since the `separate' style +# generates different output (arguably this is a bug in -E). Discard +# main info output, the user asked to run TeX, not makeinfo. +run_makeinfo () +{ + test $in_lang = texinfo \ + || return 0 + + # Unless required by the user, makeinfo expansion is wanted only + # if texinfo.tex is too old. + if $expand; then + makeinfo=${MAKEINFO:-makeinfo} + else + # Check if texinfo.tex performs macro expansion by looking for + # its version. The version is a date of the form YEAR-MO-DA. + # We don't need to use [0-9] to match the digits since anyway + # the comparison with $txiprereq, a number, will fail with non-digits. + # Run in a temporary directory to avoid leaving files. + version_test_dir=$t2ddir/version_test + ensure_dir "$version_test_dir" + if ( + cd "$version_test_dir" + echo '\input texinfo.tex @bye' >txiversion.tex + # Be sure that if tex wants to fail, it is not interactive: + # close stdin. + $TEX txiversion.tex </dev/null >txiversion.out 2>txiversion.err + ); then :; else + report "texinfo.tex appears to be broken. +This may be due to the environment variable TEX set to something +other than (plain) tex, a corrupt texinfo.tex file, or +to tex itself simply not working." + cat "$version_test_dir/txiversion.out" + cat "$version_test_dir/txiversion.err" >&2 + error 1 "quitting." + fi + eval `$SED -n 's/^.*\[\(.*\)version \(....\)-\(..\)-\(..\).*$/txiformat=\1 txiversion="\2\3\4"/p' "$version_test_dir/txiversion.out"` + verbose "texinfo.tex preloaded as \`$txiformat', version is \`$txiversion' ..." + if test "$txiprereq" -le "$txiversion" >&6 2>&1; then + makeinfo= + else + makeinfo=${MAKEINFO:-makeinfo} + fi + # If TeX is preloaded, offer the user this convenience: + if test "$txiformat" = Texinfo; then + escape=@ + fi + fi + + if test -n "$makeinfo"; then + # in_src: the file with macros expanded. + # Use the same basename to generate the same aux file names. + work_src=$workdir/src + ensure_dir "$work_src" + in_src=$work_src/$in_base + run_mi_includes=`list_prefix includes -I` + verbose "Macro-expanding $command_line_filename to $in_src ..." + # eval $makeinfo because it might be defined as something complex + # (running missing) and then we end up with things like '"-I"', + # and "-I" (including the quotes) is not an option name. This + # happens with gettext 0.14.5, at least. + $SED "$comment_iftex" "$command_line_filename" \ + | eval $makeinfo --footnote-style=end -I "$in_dir" $run_mi_includes \ + -o /dev/null --macro-expand=- \ + | $SED "$uncomment_iftex" >"$in_src" + # Continue only if everything succeeded. + if test $? -ne 0 \ + || test ! -r "$in_src"; then + verbose "Expansion failed, ignored..."; + else + in_input=$in_src + fi + fi +} + +# Unfortunately, makeinfo --iftex --no-ifinfo doesn't work well enough +# in versions before 5.0, as makeinfo can't parse the TeX commands +# inside @tex blocks, so work around with sed. +# +# This sed script preprocesses Texinfo sources in order to keep the +# iftex sections only. We want to remove non-TeX sections, and comment +# (with `@c _texi2dvi') TeX sections so that makeinfo does not try to +# parse them. Nevertheless, while commenting TeX sections, don't +# comment @macro/@end macro so that makeinfo does propagate them. +# Similarly, preserve the @top node to avoid makeinfo complaining about +# it being missed. Comment it out after preprocessing, so that it does +# not appear in the generated document. +# +# We assume that `@c _texi2dvi' or `@c (_texi2dvi)' starting a line is +# not present in the document. Additionally, conditionally defined +# macros inside the @top node may end up with the wrong value, although +# this is unlikely in practice. +# +comment_iftex=\ +'/^@tex/,/^@end tex/{ + s/^/@c _texi2dvi/ +} +/^@iftex/,/^@end iftex/{ + s/^/@c _texi2dvi/ + /^@c _texi2dvi@macro/,/^@c _texi2dvi@end macro/{ + s/^@c _texi2dvi// + } +} +/^@ifnottex/,/^@end ifnottex/{ + s/^/@c (_texi2dvi)/ + /^@c (_texi2dvi)@node Top/,/^@c (_texi2dvi)@end ifnottex/ { + /^@c (_texi2dvi)@end ifnottex/b + s/^@c (_texi2dvi)// + } +} +/^@ifinfo/,/^@end ifinfo/{ + /^@node/p + /^@menu/,/^@end menu/p + t + s/^/@c (_texi2dvi)/ +} +s/^@ifnotinfo/@c _texi2dvi@ifnotinfo/ +s/^@end ifnotinfo/@c _texi2dvi@end ifnotinfo/' + +# Uncomment @iftex blocks by removing any leading `@c texi2dvi' (repeated +# copies can sneak in via macro invocations). Likewise, comment out +# the @top node inside a @ifnottex block. +uncomment_iftex=\ +'s/^@c _texi2dvi\(@c _texi2dvi\)*// +/^@c (_texi2dvi)@ifnottex/,/^@c (_texi2dvi)@end ifnottex/{ + s/^/@c (_texi2dvi)/ +}' + + +# insert_commands - Insert $textra commands at the beginning of the file. +# Recommended to be used for @finalout, @smallbook, etc. +insert_commands () +{ + if test -n "$textra"; then + # _xtr. The file with the user's extra commands. + work_xtr=$workdir/xtr + in_xtr=$work_xtr/$in_base + ensure_dir "$work_xtr" + verbose "Inserting extra commands: $textra" + case $in_lang in + latex) textra_cmd=1i;; + texinfo) + textra_cmd='/^\\input texinfo/a' + # insert after @setfilename line if present + if head -n 10 $in_input | grep '^@setfilename' ; then + textra_cmd='/^@setfilename/a' + fi + ;; + *) error 1 "internal error, unknown language: $in_lang";; + esac + $SED "$textra_cmd\\ +$textra" "$in_input" >"$in_xtr" + in_input=$in_xtr + fi + + case $in_lang:$latex2html:`out_lang_tex` in + latex:tex4ht:html) + # _tex4ht. The file with the added \usepackage{tex4ht}. + work_tex4ht=$workdir/tex4ht + in_tex4ht=$work_tex4ht/$in_base + ensure_dir "$work_tex4ht" + verbose "Inserting \\usepackage{tex4ht}" + perl -pe 's<\\documentclass(?:\[.*\])?{.*}> + <$&\\usepackage[xhtml]{tex4ht}>' \ + "$in_input" >"$in_tex4ht" + in_input=$in_tex4ht + ;; + esac +} + + +# compute_language FILENAME - Return the short string for the language +# in which FILENAME is written: `texinfo' or `latex'. +compute_language () +{ + # If the user explicitly specified the language, use that. + # Otherwise, if the first line is \input texinfo, assume it's texinfo. + # Otherwise, guess from the file extension. + if test -n "$set_language"; then + echo $set_language + elif $SED 1q "$1" | grep 'input texinfo' >&6; then + echo texinfo + else + # Get the type of the file (latex or texinfo) from the given language + # we just guessed, or from the file extension if not set yet. + case $1 in + *.ltx | *.tex | *.drv | *.dtx) echo latex;; + *) echo texinfo;; + esac + fi +} + + +# run_hevea (MODE) - Convert to HTML/INFO/TEXT. +# +# Don't pass `-noiso' to hevea: it's useless in HTML since anyway the +# charset is set to latin1, and troublesome in other modes since +# accented characters loose their accents. +# +# Don't pass `-o DEST' to hevea because in that case it leaves all its +# auxiliary files there too... Too bad, because it means we will need +# to handle images some day. +run_hevea () +{ + run_hevea_name="${HEVEA:-hevea}" + run_hevea_cmd="$run_hevea_name" + + case $1 in + html) ;; + text|info) run_hevea_cmd="$run_hevea_cmd -$1";; + *) error 1 "run_hevea_cmd: invalid argument: $1";; + esac + + # Compiling to the tmp directory enables to preserve a previous + # successful compilation. + run_hevea_cmd="$run_hevea_cmd -fix -O -o '$out_base'" + run_hevea_cmd="$run_hevea_cmd `list_prefix includes -I` -I '$orig_pwd' " + run_hevea_cmd="$run_hevea_cmd '$rel$in_input'" + + if $debug; then + run_hevea_cmd="$run_hevea_cmd -v -v" + fi + + verbose "running $run_hevea_cmd" + if eval "$run_hevea_cmd" >&5; then + # hevea leaves trailing white spaces, this is annoying. + case $1 in text|info) + perl -pi -e 's/[ \t]+$//g' "$out_base"*;; + esac + case $1 in + html|text) move_to_dest "$out_base";; + info) # There can be foo.info-1, foo.info-2 etc. + move_to_dest "$out_base"*;; + esac + else + error 1 "$run_hevea_name exited with bad status, quitting." + fi +} + + +# run_core_conversion - Run TeX (or HeVeA). +run_core_conversion () +{ + case $in_lang:$latex2html:`out_lang_tex` in + *:dvi|*:pdf|latex:tex4ht:html) + run_tex;; + latex:*:html|latex:*:text|latex:*:info) + run_hevea $out_lang;; + *) + error 1 "invalid input/output combination: $in_lang/$out_lang";; + esac +} + + +# compile - Run the full compilation chain, from pre-processing to +# installation of the output at its expected location. +compile () +{ + # Set include path for tools: + # . Include current directory in case there are files there already, so + # we don't have more TeX runs than necessary. orig_pwd is used in case + # we are in clean build mode, where we have cd'd to a temp directory. + # . Include directory containing file, in case there are other + # files @include'd. + # . Keep a final path_sep to get the default (system) TeX + # directories included. + # . If we have any includes, put those at the end. + + common="$orig_pwd$path_sep$in_dir$path_sep" + # + txincludes=`list_infix includes $path_sep` + test -n "$txincludes" && common="$common$txincludes$path_sep" + # + for var in $tex_envvars; do + eval val="\$common\$${var}_orig" + # Convert relative paths to absolute paths, so we can run in another + # directory (e.g., in clean build mode, or during the macro-support + # detection). + val=`absolute_filenames "$val"` + eval $var="\"$val\"" + export $var + eval verbose \"$var=\'\$${var}\'\" + done + + # --expand + run_makeinfo + + # --command, --texinfo + insert_commands + + # Run until a fixed point is reached. + run_tex_suite +} + +# make_openout_test FLAGS EXTENSION +# - Run TeX with an input file that performs an \openout. Pass FLAGS to TeX. +# +make_openout_test () +{ + recorder_option_maybe="$1" + make_tex_cmd + + ensure_dir "$workdir"/check_recorder + cd_dir "$workdir"/check_recorder + + cat > openout.tex <<EOF +\newwrite\ourwrite +\immediate\openout\ourwrite dum.dum +\bye +EOF + # \bye doesn't work for LaTeX, but it will cause latex + # to exit with an input error. + tex_cmd="$tex_cmd '${escape}input' ./openout.tex" + # ./ in case . isn't in path + verbose "$0: running $tex_cmd ..." + rm -fr "openout.$2" + (eval "$tex_cmd" >/dev/null 2>&1) +} + +# Check tex supports -recorder option +check_recorder_support () +{ + verbose "Checking TeX recorder support..." + make_openout_test " -recorder" fls + if test -f openout.fls && grep '^OUTPUT dum.dum$' openout.fls > /dev/null + then + cd_orig + verbose "Checking TeX recorder support... yes" + return 0 + else + cd_orig + verbose "Checking TeX recorder support... no" + return 1 + fi +} + +# Check tex supports \openout traces in log +check_openout_in_log_support () +{ + verbose "Checking TeX \openout in log support..." + make_openout_test "" log + if test -f openout.log \ + && grep '^\\openout..\? *= *`\?dum\.dum'\''\?' openout.log >/dev/null + then + cd_orig + verbose "Checking TeX \openout in log support... yes" + return 0 + else + cd_orig + verbose "Checking TeX \openout in log support... no" + return 1 + fi +} + +# Set that output auxiliary files are detected with the -recorder option, +# which creates a file JOBNAME.fls which is a machine-readable listing of +# files read and written during the job. +set_aux_files_from_fls () +{ + recorder_option_maybe=" -recorder" + generated_files_get_method=generated_files_get_from_fls +} + +# Set that output auxiliary files are detected with searching for \openout +# in the log file. +set_aux_files_from_log () +{ + recorder_option_maybe='' + generated_files_get_method=generated_files_get_from_log +} + +# Decide whether output auxiliary files are detected with the -recorder +# option, or by searching for \openout in the log file. +decide_aux_files_method () +{ + # Select output file detection method + # Valid values of TEXI2DVI_USE_RECORDER are: + # yes use the -recorder option, no checks. + # no scan for \openout in the log file, no checks. + # yesmaybe check whether -recorder option is supported, and if yes + # use it, otherwise check for tracing \openout in the + # log file is supported, and if yes use it, else it is an + # error. + # nomaybe same as `yesmaybe', except that the \openout trace in + # log file is checked first. + # + # The default behaviour is `nomaybe'. + + test -n "$TEXI2DVI_USE_RECORDER" || TEXI2DVI_USE_RECORDER=nomaybe + + case $TEXI2DVI_USE_RECORDER in + yes) set_aux_files_from_fls;; + + no) set_aux_files_from_log;; + + yesmaybe) + if check_recorder_support; then + set_aux_files_from_fls + elif check_openout_in_log_support; then + set_aux_files_from_log + else + error 1 "TeX neither supports -recorder nor outputs \\openout lines in its log file" + fi + ;; + + nomaybe) + if check_openout_in_log_support; then + set_aux_files_from_log + elif check_recorder_support; then + set_aux_files_from_fls + else + error 1 "TeX neither supports -recorder nor outputs \\openout lines in its log file" + fi + ;; + + *) error 1 "Invalid value of TEXI2DVI_USE_RECORDER environment variable : $TEXI2DVI_USE_RECORDER.";; + + esac +} + +# remove FILE... +remove () +{ + verbose "Removing" "$@" + rm -rf "$@" +} + + +# all_files - Echo the names of all files generated, including those by +# auxiliary tools like texindex. +all_files () +{ + echo $in_noext.log + echo $in_noext.fls + echo $xref_files_new + echo `sorted_index_files` +} + +sorted_index_files () +{ + filter_files sorted_index_filter +} + +# Print the name of a generated file based on FILE if there is one. +sorted_index_filter () +{ + case $in_lang in + texinfo) + # texindex: texinfo.cp -> texinfo.cps + if test -n "`index_file_p $1`" ; then + echo $1s + fi + ;; + esac +} + + +# Not currently used - use with filter_files to add secondary files created by +# bibtex +bibtex_secondary_files () +{ + case $in_lang in + latex) + if test -n "`aux_file_p $1`"; then + # bibtex: *.aux -> *.bbl and *.blg. + echo $1 | $SED 's/^\(.*\)\.aux$/\1.bbl/' + echo $1 | $SED 's/^\(.*\)\.aux$/\1.blg/' + fi + ;; + esac +} + +# mostly_clean - Remove auxiliary files and directories. Changes back to +# the original directory. +mostly_clean () +{ + cd_orig + set X "$t2ddir" + shift + $tidy || { + set X ${1+"$@"} `all_files` + shift + } + remove ${1+"$@"} +} + + +# cleanup - Remove what should be removed according to options. +# Called at the end of each compilation cycle, and at the end of +# the script. Changes the current directory. +cleanup () +{ + case $clean:$tidy in + true:true) mostly_clean ;; # build mode is "clean" + false:false) cd_orig; remove "$t2ddir";; # build mode is "local" + esac +} + + +# input_file_name_decode - Decode COMMAND_LINE_FILENAME, and set the +# following shell variables: +# +# - COMMAND_LINE_FILENAME +# The filename given on the commmand line, but cleaned of TeX commands. +# - IN_DIR +# The directory containing the input file. +# - IN_BASE +# The input file base name (no directory part). +# - IN_NOEXT +# The input file name with neither file extensions nor directory part. +# - IN_INPUT +# The path to the input file for passing as a command-line argument +# to TeX. Defaults to COMMAND_LINE_FILENAME, but might change if the +# input is preprocessed. +input_file_name_decode () +{ + case $command_line_filename in + *\\input{*}*) + # Let AUC-TeX error parser deal with line numbers. + line_error=false + command_line_filename=`\ + expr X"$command_line_filename" : X'.*input{\([^}]*\)}'` + ;; + esac + + # If the COMMAND_LINE_FILENAME is not absolute (e.g., --debug.tex), + # prepend `./' in order to avoid that the tools take it as an option. + echo "$command_line_filename" | LC_ALL=C $EGREP '^(/|[A-Za-z]:/)' >&6 \ + || command_line_filename="./$command_line_filename" + + # See if the file exists. If it doesn't we're in trouble since, even + # though the user may be able to reenter a valid filename at the tex + # prompt (assuming they're attending the terminal), this script won't + # be able to find the right xref files and so forth. + test -r "$command_line_filename" \ + || error 1 "cannot read $command_line_filename, skipping." + + # Get the name of the current directory. + in_dir=`func_dirname "$command_line_filename"` + + # Strip directory part but leave extension. + in_base=`basename "$command_line_filename"` + # Strip extension. + in_noext=`noext "$in_base"` + + # The normalized file name to compile. Must always point to the + # file to actually compile (in case of recoding, macro-expansion etc.). + in_input=$in_dir/$in_base + + + # Compute the output file name. + if test x"$oname" != x; then + out_name=$oname + else + out_name=$in_noext.`out_lang_ext` + fi + out_dir=`func_dirname "$out_name"` + out_dir_abs=`absolute "$out_dir"` + out_base=`basename "$out_name"` + out_noext=`noext "$out_base"` +} + + +# +#################### Main program starts ########################## + +# Initialize more variables. +# +# Save TEXINPUTS so we can construct a new TEXINPUTS path for each file. +# Likewise for bibtex and makeindex. +tex_envvars="BIBINPUTS BSTINPUTS DVIPSHEADERS INDEXSTYLE MFINPUTS MPINPUTS \ +TEXINPUTS TFMFONTS" +for var in $tex_envvars; do + eval ${var}_orig=\$$var + export $var +done + +# Push a token among the arguments that will be used to notice when we +# ended options/arguments parsing. +# Use "set dummy ...; shift" rather than 'set - ..." because on +# Solaris set - turns off set -x (but keeps set -e). +# Use ${1+"$@"} rather than "$@" because Digital Unix and Ultrix 4.3 +# still expand "$@" to a single argument (the empty string) rather +# than nothing at all. +arg_sep="$$--$$" +set dummy ${1+"$@"} "$arg_sep"; shift + +while test x"$1" != x"$arg_sep"; do + # Handle --option=value by splitting apart and putting back on argv. + case "$1" in + --*=*) + opt=`echo "$1" | $SED -e 's/=.*//'` + val=`echo "$1" | $SED -e 's/[^=]*=//'` + shift + set dummy "$opt" "$val" ${1+"$@"}; shift + ;; + esac + + case "$1" in + -@ ) escape=@;; + -~ ) verbose "Option -~ is obsolete: texi2dvi ignores it.";; + -b | --batch) ;; # Obsolete + --build) shift; build_mode=$1;; + --build-dir) shift; build_dir=$1; build_mode=tidy;; + -c | --clean) build_mode=clean;; + -D | --debug) debug=true;; + -e | -E | --expand) expand=true;; + -h | --help) usage;; + -I) shift; list_concat_dirs includes "$1";; + -l | --lang | --language) shift; set_language=$1;; + --mostly-clean) action=mostly-clean;; + --no-line-error) line_error=false;; + --max-iterations) shift; max_iters=$1;; + -o | --out | --output) + shift + # Make it absolute, just in case we also have --clean, or whatever. + oname=`absolute "$1"`;; + + # Output formats. + -O|--output-format) shift; out_lang_set "$1";; + --dvi|--dvipdf|--html|--info|--pdf|--ps|--text) + out_lang_set `echo "x$1" | $SED 's/^x--//'`;; + + -p) out_lang_set pdf;; + -q | -s | --quiet | --silent) quiet=true;; + --src-specials) src_specials=--src-specials;; + --shell-escape) shell_escape=--shell-escape;; + --tex4ht) latex2html=tex4ht;; + -t | --texinfo | --command ) shift; textra="$textra\\ +"`echo "$1" | $SED 's/\\\\/\\\\\\\\/g'`;; + --translate-file ) shift; translate_file="$1";; + --tidy) build_mode=tidy;; + -v | --vers*) version;; + -V | --verb*) verb=true;; + --) # What remains are not options. + shift + while test x"$1" != x"$arg_sep"; do + set dummy ${1+"$@"} "$1"; shift + shift + done + break;; + -*) + error 1 "Unknown or ambiguous option \`$1'." \ + "Try \`--help' for more information." + ;; + *) set dummy ${1+"$@"} "$1"; shift;; + esac + shift +done +# Pop the token +shift + +# $tidy: compile in a t2d directory. +# $clean: remove all the aux files. +case $build_mode in + local) clean=false; tidy=false;; + tidy) clean=false; tidy=true;; + clean) clean=true; tidy=true;; + *) error 1 "invalid build mode: $build_mode";; +esac + +# Interpret remaining command line args as filenames. +case $# in + 0) + error 2 "Missing file arguments." "Try \`--help' for more information." + ;; + 1) ;; + *) + if test -n "$oname"; then + error 2 "Can't use option \`--output' with more than one argument." + fi + ;; +esac + + +# We can't do much without tex. +# End up with the TEX and PDFTEX variables set to what we are going to use. +# +# If $TEX is set to a directory, don't use it. +test -n "$TEX" && test -d "$TEX" && unset TEX + +# But otherwise, use $TEX if it is set. +if test -z "$TEX"; then + if findprog tex; then :; else cat <<EOM >&2 +You don't have a working TeX binary (tex) installed anywhere in +your PATH, and texi2dvi cannot proceed without one. If you want to use +this script, you'll need to install TeX (if you don't have it) or change +your PATH or TEX environment variable (if you do). See the --help +output for more details. + +For information about obtaining TeX, please see http://tug.org/texlive, +or do a web search for TeX and your operating system or distro. +EOM + exit 1 + fi + + # We want to use etex (or pdftex) if they are available, and the user + # didn't explicitly specify. We don't check for elatex and pdfelatex + # because (as of 2003), the LaTeX team has asked that new distributions + # use etex by default anyway. + # + if findprog etex; then TEX=etex; else TEX=tex; fi +fi + +# For many years, the pdftex binary has included the e-tex extensions, +# but for those people with ancient TeX distributions ... +if test -z "$PDFTEX"; then + if findprog pdfetex; then PDFTEX=pdfetex; else PDFTEX=pdftex; fi +fi + + +# File descriptor usage: +# 0 standard input +# 1 standard output (--verbose messages) +# 2 standard error +# 5 tools output (turned off by --quiet) +# 6 tracing/debugging (set -x output, etc.) + +# Main tools' output (TeX, etc.) that TeX users are used to seeing. +# +# If quiet, discard, else redirect to the message flow. +if $quiet; then + exec 5>/dev/null +else + exec 5>&1 +fi + + +# Enable tracing, and auxiliary tools output. +# +# This fd should be used where you'd typically use /dev/null to throw +# output away. But sometimes it is convenient to see that output (e.g., +# from a grep) to aid debugging. Especially debugging at distance, via +# the user. +# +if $debug; then + exec 6>&1 + set -vx +else + exec 6>/dev/null +fi + + +# Main program main loop - TeXify each file in turn. +for command_line_filename +do + verbose "Processing $command_line_filename ..." + + input_file_name_decode + + # `texinfo' or `latex'? + in_lang=`compute_language "$command_line_filename"` + + # An auxiliary directory used for all the auxiliary tasks involved + # in compiling this document. + case $build_dir in + '' | . ) t2ddir=$out_noext.t2d ;; + *) # Avoid collisions between multiple occurrences of the same + # file, so depend on the output path. Remove leading `./', + # at least to avoid creating a file starting with `.!', i.e., + # an invisible file. The sed expression is fragile if the cwd + # has active characters. Transform / into ! so that we don't + # need `mkdir -p'. It might be something to reconsider. + t2ddir=$build_dir/`echo "$out_dir_abs/$out_noext.t2d" | + $SED "s,^$orig_pwd/,,;s,^\./,,;s,/,!,g"` + esac + # Remove it at exit if clean mode. + trap "cleanup" 0 1 2 15 + + ensure_dir "$build_dir" "$t2ddir" + + # Sometimes there are incompatibilities between auxiliary files for + # DVI and PDF. The contents can also change whether we work on PDF + # and/or DVI. So keep separate spaces for each. + workdir=$t2ddir/`out_lang_tex` + ensure_dir "$workdir" + + # _build. In a tidy build, where the auxiliary files are output. + if $tidy; then + work_build=$workdir/build + else + work_build=. + fi + + # _bak. Copies of the previous auxiliary files (another round is + # run if they differ from the new ones). + work_bak=$workdir/bak + + # Make those directories. + ensure_dir "$work_build" "$work_bak" + + # Decide how to find auxiliary files created by TeX. + decide_aux_files_method + + case $action in + compile) + # Compile the document. + compile + cleanup + ;; + + mostly-clean) + xref_files_new=`generated_files_get` + mostly_clean + ;; + esac +done + +verbose "done." +exit 0 # exit successfully, not however we ended the loop. +# Local Variables: +# sh-basic-offset: 2 +# sh-indentation: 2 +# End: |