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360aca43 |
1 | #!/usr/local/bin/perl |
2 | |
3 | use Config; |
4 | use File::Basename qw(&basename &dirname); |
5 | |
6 | # List explicitly here the variables you want Configure to |
7 | # generate. Metaconfig only looks for shell variables, so you |
8 | # have to mention them as if they were shell variables, not |
9 | # %Config entries. Thus you write |
10 | # $startperl |
11 | # to ensure Configure will look for $Config{startperl}. |
12 | |
92c28edd |
13 | # This forces PL files to create target in same directory as PL file. |
14 | # This is so that make depend always knows where to find PL derivatives. |
15 | chdir(dirname($0)); |
16 | ($file = basename($0)) =~ s/\.PL$//; |
17 | $file =~ s/\.pl$// |
18 | if ($^O eq 'VMS' or $^O eq 'os2'); # "case-forgiving" |
360aca43 |
19 | |
20 | open OUT,">$file" or die "Can't create $file: $!"; |
21 | |
22 | print "Extracting $file (with variable substitutions)\n"; |
23 | |
24 | # In this section, perl variables will be expanded during extraction. |
25 | # You can use $Config{...} to use Configure variables. |
26 | |
27 | print OUT <<"!GROK!THIS!"; |
28 | $Config{'startperl'} |
29 | eval 'exec perl -S \$0 "\$@"' |
30 | if 0; |
31 | !GROK!THIS! |
32 | |
33 | # In the following, perl variables are not expanded during extraction. |
34 | |
35 | print OUT <<'!NO!SUBS!'; |
36 | |
37 | ############################################################################# |
38 | # pod2usage -- command to print usage messages from embedded pod docs |
39 | # |
40 | # Derived from Tom Christiansen's pod2text script. |
41 | # (with extensive modifications) |
42 | # |
43 | # Copyright (c) 1996 Bradford Appleton. All rights reserved. |
44 | # This file is part of "PodParser". PodParser is free software; |
45 | # you can redistribute it and/or modify it under the same terms |
46 | # as Perl itself. |
47 | ############################################################################# |
48 | |
49 | use strict; |
50 | use diagnostics; |
51 | |
52 | =head1 NAME |
53 | |
54 | pod2usage - print usage messages from embedded pod docs in files |
55 | |
56 | =head1 SYNOPSIS |
57 | |
58 | =over 12 |
59 | |
60 | =item B<pod2usage> |
61 | |
62 | [B<-help>] |
63 | [B<-man>] |
64 | [B<-exit>S< >I<exitval>] |
65 | [B<-output>S< >I<outfile>] |
66 | [B<-verbose> I<level>] |
67 | [B<-pathlist> I<dirlist>] |
68 | I<file> |
69 | |
70 | =back |
71 | |
72 | =head1 OPTIONS AND ARGUMENTS |
73 | |
74 | =over 8 |
75 | |
76 | =item B<-help> |
77 | |
78 | Print a brief help message and exit. |
79 | |
80 | =item B<-man> |
81 | |
82 | Print this command's manual page and exit. |
83 | |
84 | =item B<-exit> I<exitval> |
85 | |
86 | The exit status value to return. |
87 | |
88 | =item B<-output> I<outfile> |
89 | |
90 | The output file to print to. If the special names "-" or ">&1" or ">&STDOUT" |
91 | are used then standard output is used. If ">&2" or ">&STDERR" is used then |
92 | standard error is used. |
93 | |
94 | =item B<-verbose> I<level> |
95 | |
96 | The desired level of verbosity to use: |
97 | |
98 | 1 : print SYNOPSIS only |
99 | 2 : print SYNOPSIS sections and any OPTIONS/ARGUMENTS sections |
100 | 3 : print the entire manpage (similar to running pod2text) |
101 | |
102 | =item B<-pathlist> I<dirlist> |
103 | |
104 | Specifies one or more directories to search for the input file if it |
105 | was not supplied with an absolute path. Each directory path in the given |
106 | list should be separated by a ':' on Unix (';' on MSWin32 and DOS). |
107 | |
108 | =item I<file> |
109 | |
110 | The pathname of a file containing pod documentation to be output in |
111 | usage mesage format (defaults to standard input). |
112 | |
113 | =back |
114 | |
115 | =head1 DESCRIPTION |
116 | |
117 | B<pod2usage> will read the given input file looking for pod |
118 | documentation and will print the corresponding usage message. |
119 | If no input file is specifed than standard input is read. |
120 | |
121 | B<pod2usage> invokes the B<pod2usage()> function in the B<Pod::Usage> |
122 | module. Please see L<Pod::Usage/pod2usage()>. |
123 | |
124 | =head1 SEE ALSO |
125 | |
126 | L<Pod::Usage>, L<pod2text(1)> |
127 | |
128 | =head1 AUTHOR |
129 | |
130 | Brad Appleton E<lt>bradapp@enteract.comE<gt> |
131 | |
132 | Based on code for B<pod2text(1)> written by |
133 | Tom Christiansen E<lt>tchrist@mox.perl.comE<gt> |
134 | |
135 | =cut |
136 | |
137 | use Pod::Usage; |
138 | use Getopt::Long; |
139 | |
140 | ## Define options |
141 | my %options = (); |
142 | my @opt_specs = ( |
143 | "help", |
144 | "man", |
145 | "exit=i", |
146 | "output=s", |
147 | "pathlist=s", |
148 | "verbose=i", |
149 | ); |
150 | |
151 | ## Parse options |
152 | GetOptions(\%options, @opt_specs) || pod2usage(2); |
153 | pod2usage(1) if ($options{help}); |
154 | pod2usage(VERBOSE => 2) if ($options{man}); |
155 | |
156 | ## Dont default to STDIN if connected to a terminal |
157 | pod2usage(2) if ((@ARGV == 0) && (-t STDIN)); |
158 | |
159 | @ARGV = ("-") unless (@ARGV > 0); |
160 | if (@ARGV > 1) { |
161 | print STDERR "pod2usage: Too many filenames given\n\n"; |
162 | pod2usage(2); |
163 | } |
164 | |
165 | my %usage = (); |
166 | $usage{-input} = shift(@ARGV); |
167 | $usage{-exitval} = $options{"exit"} if (defined $options{"exit"}); |
168 | $usage{-output} = $options{"output"} if (defined $options{"output"}); |
169 | $usage{-verbose} = $options{"verbose"} if (defined $options{"verbose"}); |
170 | $usage{-pathlist} = $options{"pathlist"} if (defined $options{"pathlist"}); |
171 | |
172 | pod2usage(\%usage); |
173 | |
174 | |
175 | !NO!SUBS! |
176 | |
177 | close OUT or die "Can't close $file: $!"; |
178 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
179 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |