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180 lines
4.5 KiB
Perl
180 lines
4.5 KiB
Perl
#!/usr/local/bin/perl
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use Config;
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use File::Basename qw(&basename &dirname);
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use Cwd;
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# List explicitly here the variables you want Configure to
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# generate. Metaconfig only looks for shell variables, so you
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# have to mention them as if they were shell variables, not
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# %Config entries. Thus you write
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# $startperl
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# to ensure Configure will look for $Config{startperl}.
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# This forces PL files to create target in same directory as PL file.
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# This is so that make depend always knows where to find PL derivatives.
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$origdir = cwd;
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chdir(dirname($0));
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($file = basename($0)) =~ s/\.PL$//;
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$file =~ s/\.pl$// if ($^O eq 'os2' or $^O eq 'dos'); # "case-forgiving"
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$file =~ s/\.pl$/.com/ if ($^O eq 'VMS'); # "case-forgiving"
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open OUT,">$file" or die "Can't create $file: $!";
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print "Extracting $file (with variable substitutions)\n";
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# In this section, perl variables will be expanded during extraction.
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# You can use $Config{...} to use Configure variables.
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print OUT <<"!GROK!THIS!";
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$Config{'startperl'}
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eval 'exec perl -S \$0 "\$@"'
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if 0;
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!GROK!THIS!
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# In the following, perl variables are not expanded during extraction.
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print OUT <<'!NO!SUBS!';
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#############################################################################
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# pod2usage -- command to print usage messages from embedded pod docs
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#
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# Copyright (c) 1996-1999 by Bradford Appleton. All rights reserved.
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# This file is part of "PodParser". PodParser is free software;
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# you can redistribute it and/or modify it under the same terms
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# as Perl itself.
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#############################################################################
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use strict;
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use diagnostics;
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=head1 NAME
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pod2usage - print usage messages from embedded pod docs in files
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=head1 SYNOPSIS
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=over 12
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=item B<pod2usage>
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[B<-help>]
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[B<-man>]
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[B<-exit>S< >I<exitval>]
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[B<-output>S< >I<outfile>]
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[B<-verbose> I<level>]
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[B<-pathlist> I<dirlist>]
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I<file>
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=back
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=head1 OPTIONS AND ARGUMENTS
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=over 8
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=item B<-help>
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Print a brief help message and exit.
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=item B<-man>
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Print this command's manual page and exit.
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=item B<-exit> I<exitval>
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The exit status value to return.
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=item B<-output> I<outfile>
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The output file to print to. If the special names "-" or ">&1" or ">&STDOUT"
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are used then standard output is used. If ">&2" or ">&STDERR" is used then
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standard error is used.
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=item B<-verbose> I<level>
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The desired level of verbosity to use:
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1 : print SYNOPSIS only
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2 : print SYNOPSIS sections and any OPTIONS/ARGUMENTS sections
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3 : print the entire manpage (similar to running pod2text)
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=item B<-pathlist> I<dirlist>
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Specifies one or more directories to search for the input file if it
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was not supplied with an absolute path. Each directory path in the given
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list should be separated by a ':' on Unix (';' on MSWin32 and DOS).
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=item I<file>
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The pathname of a file containing pod documentation to be output in
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usage mesage format (defaults to standard input).
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=back
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=head1 DESCRIPTION
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B<pod2usage> will read the given input file looking for pod
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documentation and will print the corresponding usage message.
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If no input file is specifed than standard input is read.
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B<pod2usage> invokes the B<pod2usage()> function in the B<Pod::Usage>
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module. Please see L<Pod::Usage/pod2usage()>.
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=head1 SEE ALSO
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L<Pod::Usage>, L<pod2text(1)>
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=head1 AUTHOR
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Brad Appleton E<lt>bradapp@enteract.comE<gt>
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Based on code for B<pod2text(1)> written by
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Tom Christiansen E<lt>tchrist@mox.perl.comE<gt>
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=cut
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use Pod::Usage;
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use Getopt::Long;
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## Define options
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my %options = ();
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my @opt_specs = (
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"help",
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"man",
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"exit=i",
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"output=s",
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"pathlist=s",
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"verbose=i",
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);
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## Parse options
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GetOptions(\%options, @opt_specs) || pod2usage(2);
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pod2usage(1) if ($options{help});
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pod2usage(VERBOSE => 2) if ($options{man});
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## Dont default to STDIN if connected to a terminal
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pod2usage(2) if ((@ARGV == 0) && (-t STDIN));
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@ARGV = ("-") unless (@ARGV > 0);
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if (@ARGV > 1) {
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print STDERR "pod2usage: Too many filenames given\n\n";
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pod2usage(2);
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}
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my %usage = ();
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$usage{-input} = shift(@ARGV);
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$usage{-exitval} = $options{"exit"} if (defined $options{"exit"});
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$usage{-output} = $options{"output"} if (defined $options{"output"});
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$usage{-verbose} = $options{"verbose"} if (defined $options{"verbose"});
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$usage{-pathlist} = $options{"pathlist"} if (defined $options{"pathlist"});
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pod2usage(\%usage);
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!NO!SUBS!
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close OUT or die "Can't close $file: $!";
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chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
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exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
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chdir $origdir;
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