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- #! /usr/bin/perl -w
- # -*- perl -*-
- # Generated from ifnames.in; do not edit by hand.
-
- eval 'case $# in 0) exec /usr/bin/perl -S "$0";; *) exec /usr/bin/perl -S "$0" "$@";; esac'
- if 0;
-
- # ifnames - print the identifiers used in C preprocessor conditionals
-
- # Copyright (C) 1994, 1995, 1999, 2000, 2001, 2002, 2003 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 2, 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, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- # 02111-1307, USA.
-
- # Reads from stdin if no files are given.
- # Writes to stdout.
-
- # Written by David MacKenzie <djm@gnu.ai.mit.edu>
- # and Paul Eggert <eggert@twinsun.com>.
-
- BEGIN
- {
- my $datadir = $ENV{'autom4te_perllibdir'} || '/usr/share/autoconf';
- unshift @INC, $datadir;
-
- # Override SHELL. On DJGPP SHELL may not be set to a shell
- # that can handle redirection and quote arguments correctly,
- # e.g.: COMMAND.COM. For DJGPP always use the shell that configure
- # has detected.
- $ENV{'SHELL'} = '/bin/sh' if ($^O eq 'dos');
- }
-
- use Autom4te::General;
- use Autom4te::XFile;
-
- # $HELP
- # -----
- $help = "Usage: $0 [OPTION] ... [FILE] ...
-
- Scan all of the C source FILES (or the standard input, if none are
- given) and write to the standard output a sorted list of all the
- identifiers that appear in those files in `#if', `#elif', `#ifdef', or
- `#ifndef' directives. Print each identifier on a line, followed by a
- space-separated list of the files in which that identifier occurs.
-
- -h, --help print this help, then exit
- -V, --version print version number, then exit
-
- Report bugs to <bug-autoconf\@gnu.org>.
- ";
-
-
- # $VERSION
- # --------
- $version = "ifnames (GNU Autoconf) 2.59
- Written by David J. MacKenzie and Paul Eggert.
-
- Copyright (C) 2003 Free Software Foundation, Inc.
- This is free software; see the source for copying conditions. There is NO
- warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- ";
-
-
- # &parse_args ()
- # --------------
- # Process any command line arguments.
- sub parse_args ()
- {
- getopt ();
- }
-
-
- # %OCCURRENCE
- # -----------
- my %occurrence;
-
-
- # &scan_file ($FILENAME)
- # ----------------------
- sub scan_file ($)
- {
- my ($filename) = @_;
- my $file = new Autom4te::XFile ($filename);
- while ($_ = $file->getline)
- {
- # Continuation lines.
- $_ .= $file->getline
- while (s/\\$//);
-
- # Preprocessor directives.
- if (s/^\s*\#\s*(if|ifdef|ifndef|elif)\s+//)
- {
- # Remove comments. Not perfect, but close enough.
- s(/\*.*?\*/)();
- s(/\*.*)();
- s(//.*)();
- foreach my $word (split (/\W+/))
- {
- next
- if $word eq 'defined' || $word !~ /^[a-zA-Z_]/;
- $occurrence{$word}{$filename} = 1;
- }
- }
- }
- }
-
-
- ## ------ ##
- ## Main. ##
- ## ------ ##
-
- parse_args();
- foreach (@ARGV)
- {
- scan_file ($_);
- }
- foreach (sort keys %occurrence)
- {
- print "$_ ", join (' ', sort keys %{$occurrence{$_}}), "\n";
- }
-
- ### Setup "GNU" style for perl-mode and cperl-mode.
- ## Local Variables:
- ## perl-indent-level: 2
- ## perl-continued-statement-offset: 2
- ## perl-continued-brace-offset: 0
- ## perl-brace-offset: 0
- ## perl-brace-imaginary-offset: 0
- ## perl-label-offset: -2
- ## cperl-indent-level: 2
- ## cperl-brace-offset: 0
- ## cperl-continued-brace-offset: 0
- ## cperl-label-offset: -2
- ## cperl-extra-newline-before-brace: t
- ## cperl-merge-trailing-else: nil
- ## cperl-continued-statement-offset: 2
- ## End:
-