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360aca43 GS |
1 | #!/usr/local/bin/perl |
2 | ||
3 | use Config; | |
4 | use File::Basename qw(&basename &dirname); | |
933fea7f | 5 | use Cwd; |
360aca43 GS |
6 | |
7 | # List explicitly here the variables you want Configure to | |
8 | # generate. Metaconfig only looks for shell variables, so you | |
9 | # have to mention them as if they were shell variables, not | |
10 | # %Config entries. Thus you write | |
11 | # $startperl | |
12 | # to ensure Configure will look for $Config{startperl}. | |
13 | ||
3b5ca523 GS |
14 | # This forces PL files to create target in same directory as PL file. |
15 | # This is so that make depend always knows where to find PL derivatives. | |
933fea7f | 16 | $origdir = cwd; |
3b5ca523 GS |
17 | chdir(dirname($0)); |
18 | ($file = basename($0)) =~ s/\.PL$//; | |
c93fa817 GS |
19 | $file =~ s/\.pl$// if ($^O eq 'os2' or $^O eq 'dos'); # "case-forgiving" |
20 | $file =~ s/\.pl$/.com/ if ($^O eq 'VMS'); # "case-forgiving" | |
360aca43 GS |
21 | |
22 | open OUT,">$file" or die "Can't create $file: $!"; | |
23 | ||
24 | print "Extracting $file (with variable substitutions)\n"; | |
25 | ||
26 | # In this section, perl variables will be expanded during extraction. | |
27 | # You can use $Config{...} to use Configure variables. | |
28 | ||
29 | print OUT <<"!GROK!THIS!"; | |
30 | $Config{'startperl'} | |
31 | eval 'exec perl -S \$0 "\$@"' | |
32 | if 0; | |
33 | !GROK!THIS! | |
34 | ||
35 | # In the following, perl variables are not expanded during extraction. | |
36 | ||
37 | print OUT <<'!NO!SUBS!'; | |
38 | ||
39 | ############################################################################# | |
40 | # pod2usage -- command to print usage messages from embedded pod docs | |
41 | # | |
92e3d63a | 42 | # Copyright (c) 1996-2000 by Bradford Appleton. All rights reserved. |
360aca43 GS |
43 | # This file is part of "PodParser". PodParser is free software; |
44 | # you can redistribute it and/or modify it under the same terms | |
45 | # as Perl itself. | |
46 | ############################################################################# | |
47 | ||
48 | use strict; | |
49 | use diagnostics; | |
50 | ||
51 | =head1 NAME | |
52 | ||
53 | pod2usage - print usage messages from embedded pod docs in files | |
54 | ||
55 | =head1 SYNOPSIS | |
56 | ||
57 | =over 12 | |
58 | ||
59 | =item B<pod2usage> | |
60 | ||
61 | [B<-help>] | |
62 | [B<-man>] | |
63 | [B<-exit>S< >I<exitval>] | |
64 | [B<-output>S< >I<outfile>] | |
65 | [B<-verbose> I<level>] | |
66 | [B<-pathlist> I<dirlist>] | |
67 | I<file> | |
68 | ||
69 | =back | |
70 | ||
71 | =head1 OPTIONS AND ARGUMENTS | |
72 | ||
73 | =over 8 | |
74 | ||
75 | =item B<-help> | |
76 | ||
77 | Print a brief help message and exit. | |
78 | ||
79 | =item B<-man> | |
80 | ||
81 | Print this command's manual page and exit. | |
82 | ||
83 | =item B<-exit> I<exitval> | |
84 | ||
85 | The exit status value to return. | |
86 | ||
87 | =item B<-output> I<outfile> | |
88 | ||
89 | The output file to print to. If the special names "-" or ">&1" or ">&STDOUT" | |
90 | are used then standard output is used. If ">&2" or ">&STDERR" is used then | |
91 | standard error is used. | |
92 | ||
93 | =item B<-verbose> I<level> | |
94 | ||
95 | The desired level of verbosity to use: | |
96 | ||
97 | 1 : print SYNOPSIS only | |
98 | 2 : print SYNOPSIS sections and any OPTIONS/ARGUMENTS sections | |
99 | 3 : print the entire manpage (similar to running pod2text) | |
100 | ||
101 | =item B<-pathlist> I<dirlist> | |
102 | ||
103 | Specifies one or more directories to search for the input file if it | |
104 | was not supplied with an absolute path. Each directory path in the given | |
105 | list should be separated by a ':' on Unix (';' on MSWin32 and DOS). | |
106 | ||
107 | =item I<file> | |
108 | ||
109 | The pathname of a file containing pod documentation to be output in | |
110 | usage mesage format (defaults to standard input). | |
111 | ||
112 | =back | |
113 | ||
114 | =head1 DESCRIPTION | |
115 | ||
116 | B<pod2usage> will read the given input file looking for pod | |
117 | documentation and will print the corresponding usage message. | |
118 | If no input file is specifed than standard input is read. | |
119 | ||
120 | B<pod2usage> invokes the B<pod2usage()> function in the B<Pod::Usage> | |
121 | module. Please see L<Pod::Usage/pod2usage()>. | |
122 | ||
123 | =head1 SEE ALSO | |
124 | ||
125 | L<Pod::Usage>, L<pod2text(1)> | |
126 | ||
127 | =head1 AUTHOR | |
128 | ||
129 | Brad Appleton E<lt>bradapp@enteract.comE<gt> | |
130 | ||
131 | Based on code for B<pod2text(1)> written by | |
132 | Tom Christiansen E<lt>tchrist@mox.perl.comE<gt> | |
133 | ||
134 | =cut | |
135 | ||
136 | use Pod::Usage; | |
137 | use Getopt::Long; | |
138 | ||
139 | ## Define options | |
140 | my %options = (); | |
141 | my @opt_specs = ( | |
142 | "help", | |
143 | "man", | |
144 | "exit=i", | |
145 | "output=s", | |
146 | "pathlist=s", | |
147 | "verbose=i", | |
148 | ); | |
149 | ||
150 | ## Parse options | |
151 | GetOptions(\%options, @opt_specs) || pod2usage(2); | |
152 | pod2usage(1) if ($options{help}); | |
153 | pod2usage(VERBOSE => 2) if ($options{man}); | |
154 | ||
155 | ## Dont default to STDIN if connected to a terminal | |
156 | pod2usage(2) if ((@ARGV == 0) && (-t STDIN)); | |
157 | ||
158 | @ARGV = ("-") unless (@ARGV > 0); | |
159 | if (@ARGV > 1) { | |
160 | print STDERR "pod2usage: Too many filenames given\n\n"; | |
161 | pod2usage(2); | |
162 | } | |
163 | ||
164 | my %usage = (); | |
165 | $usage{-input} = shift(@ARGV); | |
166 | $usage{-exitval} = $options{"exit"} if (defined $options{"exit"}); | |
167 | $usage{-output} = $options{"output"} if (defined $options{"output"}); | |
168 | $usage{-verbose} = $options{"verbose"} if (defined $options{"verbose"}); | |
169 | $usage{-pathlist} = $options{"pathlist"} if (defined $options{"pathlist"}); | |
170 | ||
171 | pod2usage(\%usage); | |
172 | ||
173 | ||
174 | !NO!SUBS! | |
175 | ||
176 | close OUT or die "Can't close $file: $!"; | |
177 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
178 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; | |
933fea7f | 179 | chdir $origdir; |