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105 lines
3.1 KiB
Bash
Executable File
105 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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### make-info-dir - create info/dir, for systems without install-info
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## Copyright (C) 2013-2022 Free Software Foundation, Inc.
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## Author: Glenn Morris <rgm@gnu.org>
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## Maintainer: emacs-devel@gnu.org
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## This file is part of GNU Emacs.
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## GNU Emacs 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 3 of the License, or
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## (at your option) any later version.
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## GNU Emacs 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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## You should have received a copy of the GNU General Public License
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## along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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### Commentary:
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## Generate info/dir, for systems without install-info.
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## Expects to be called from top-level Emacs source directory.
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## It only handles the case where info/dir is missing from the
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## installation directory. It does not handle info/dir being present
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## but missing some entries.
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## Header contains non-printing characters, so this is more
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## reliable than using awk.
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cat <"${1?}" || exit
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shift
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exec "${AWK-awk}" '
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function detexinfo() {
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gsub(/@value{emacsname}/, "Emacs")
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gsub(/@[^{]*\{/, "")
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gsub(/}/, "")
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}
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BEGIN {
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ntopics = 0
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topic[ntopics++] = "Texinfo documentation system"
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topic[ntopics++] = "Emacs"
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topic[ntopics++] = "Emacs lisp"
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topic[ntopics++] = "Emacs editing modes"
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topic[ntopics++] = "Emacs network features"
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topic[ntopics++] = "Emacs misc features"
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topic[ntopics++] = "Emacs lisp libraries"
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topic[ntopics] = "Unknown category"
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texinfo = 0
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}
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/^@dircategory / {
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texinfo = 1
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sub(/^@dircategory /, "")
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detexinfo()
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for (dircat = 0; dircat < ntopics && topic[dircat] != $0; dircat++)
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continue;
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}
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/^@direntry/, /^@end direntry/ {
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# FIXME do not ignore w32 if OS is w32.
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if ($0 !~ /^@/ && $0 !~ /w32/) {
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detexinfo()
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data[dircat] = data[dircat] $0 "\n"
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}
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}
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## Org stuff. TODO we assume the order of the texinfo items.
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{
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## TODO Check FILENAME suffix instead?
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## TODO Is this portable awk?
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if (FNR == 1) texinfo = 0
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## If applied to the generated org.texi file, this picks up the examples.
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## Thanks for making life more difficult...
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if (texinfo) next
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if (tolower($0) ~ /^#\+texinfo_dir_category/) {
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sub(/^#[^:]*: /, "")
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for (dircat = 0; dircat < ntopics && topic[dircat] != $0; dircat++)
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continue;
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}
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if (tolower($0) ~ /^#\+texinfo_dir_title/) {
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sub(/^#[^:]*: /, "")
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## Note this does not fill any long descriptions.
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data[dircat] = data[dircat] sprintf("* %-30s", ($0 ". "))
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}
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if (tolower($0) ~ /^#\+texinfo_dir_desc/) {
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sub(/^#[^:]*: /, "")
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data[dircat] = data[dircat] $0 ".\n"
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}
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}
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END {
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for (dircat = 0; dircat <= ntopics; dircat++)
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if (data[dircat])
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printf "\n%s\n%s", topic[dircat], data[dircat]
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}
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' "${@?}"
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