4 use File::Basename qw(&basename &dirname);
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
12 # to ensure Configure will look for $Config{startperl}.
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.
18 $file = basename($0, '.PL');
19 $file .= '.com' if $^O eq 'VMS';
21 open OUT,">$file" or die "Can't create $file: $!";
23 print "Extracting $file (with variable substitutions)\n";
25 # In this section, perl variables will be expanded during extraction.
26 # You can use $Config{...} to use Configure variables.
28 print OUT <<"!GROK!THIS!";
30 eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
31 if \$running_under_some_shell;
34 # In the following, perl variables are not expanded during extraction.
36 print OUT <<'!NO!SUBS!';
38 # pod2text -- Convert POD data to formatted ASCII text.
40 # Copyright 1999, 2000, 2001 by Russ Allbery <rra@stanford.edu>
42 # This program is free software; you may redistribute it and/or modify it
43 # under the same terms as Perl itself.
45 # The driver script for Pod::Text, Pod::Text::Termcap, and Pod::Text::Color,
46 # invoked by perldoc -t among other things.
50 use Getopt::Long qw(GetOptions);
52 use Pod::Usage qw(pod2usage);
56 # Silence -w warnings.
57 use vars qw($running_under_some_shell);
59 # Take an initial pass through our options, looking for one of the form
60 # -<number>. We turn that into -w <number> for compatibility with the
61 # original pod2text script.
62 for (my $i = 0; $i < @ARGV; $i++) {
63 last if $ARGV[$i] =~ /^--$/;
64 if ($ARGV[$i] =~ /^-(\d+)$/) {
65 splice (@ARGV, $i++, 1, '-w', $1);
69 # Insert -- into @ARGV before any single dash argument to hide it from
70 # Getopt::Long; we want to interpret it as meaning stdin (which Pod::Simple
73 @ARGV = map { $_ eq '-' && !$stdin++ ? ('--', $_) : $_ } @ARGV;
75 # Parse our options. Use the same names as Pod::Text for simplicity, and
76 # default to sentence boundaries turned off for compatibility.
78 $options{sentence} = 0;
79 Getopt::Long::config ('bundling');
80 GetOptions (\%options, 'alt|a', 'code', 'color|c', 'help|h', 'indent|i=i',
81 'loose|l', 'margin|left-margin|m=i', 'overstrike|o',
82 'quotes|q=s', 'sentence|s', 'termcap|t', 'width|w=i') or exit 1;
83 pod2usage (1) if $options{help};
85 # Figure out what formatter we're going to use. -c overrides -t.
86 my $formatter = 'Pod::Text';
87 if ($options{color}) {
88 $formatter = 'Pod::Text::Color';
89 eval { require Term::ANSIColor };
90 if ($@) { die "-c (--color) requires Term::ANSIColor be installed\n" }
91 require Pod::Text::Color;
92 } elsif ($options{termcap}) {
93 $formatter = 'Pod::Text::Termcap';
94 require Pod::Text::Termcap;
95 } elsif ($options{overstrike}) {
96 $formatter = 'Pod::Text::Overstrike';
97 require Pod::Text::Overstrike;
99 delete @options{'color', 'termcap', 'overstrike'};
101 # Initialize and run the formatter.
103 my $parser = $formatter->new (%options);
104 my ($input, $output) = splice (@ARGV, 0, 2);
105 $parser->parse_file ($input, $output);
113 pod2text - Convert POD data to formatted ASCII text
117 pod2text [B<-aclost>] [B<--code>] [B<-i> I<indent>] S<[B<-q> I<quotes>]>
118 S<[B<-w> I<width>]> [I<input> [I<output> ...]]
124 B<pod2text> is a front-end for Pod::Text and its subclasses. It uses them
125 to generate formatted ASCII text from POD source. It can optionally use
126 either termcap sequences or ANSI color escape sequences to format the text.
128 I<input> is the file to read for POD source (the POD can be embedded in
129 code). If I<input> isn't given, it defaults to STDIN. I<output>, if given,
130 is the file to which to write the formatted output. If I<output> isn't
131 given, the formatted output is written to STDOUT. Several POD files can be
132 processed in the same B<pod2text> invocation (saving module load and compile
133 times) by providing multiple pairs of I<input> and I<output> files on the
140 =item B<-a>, B<--alt>
142 Use an alternate output format that, among other things, uses a different
143 heading style and marks C<=item> entries with a colon in the left margin.
147 Include any non-POD text from the input file in the output as well. Useful
148 for viewing code documented with POD blocks with the POD rendered and the
151 =item B<-c>, B<--color>
153 Format the output with ANSI color escape sequences. Using this option
154 requires that Term::ANSIColor be installed on your system.
156 =item B<-i> I<indent>, B<--indent=>I<indent>
158 Set the number of spaces to indent regular text, and the default indentation
159 for C<=over> blocks. Defaults to 4 spaces if this option isn't given.
161 =item B<-h>, B<--help>
163 Print out usage information and exit.
165 =item B<-l>, B<--loose>
167 Print a blank line after a C<=head1> heading. Normally, no blank line is
168 printed after C<=head1>, although one is still printed after C<=head2>,
169 because this is the expected formatting for manual pages; if you're
170 formatting arbitrary text documents, using this option is recommended.
172 =item B<-m> I<width>, B<--left-margin>=I<width>, B<--margin>=I<width>
174 The width of the left margin in spaces. Defaults to 0. This is the margin
175 for all text, including headings, not the amount by which regular text is
176 indented; for the latter, see B<-i> option.
178 =item B<-o>, B<--overstrike>
180 Format the output with overstruck printing. Bold text is rendered as
181 character, backspace, character. Italics and file names are rendered as
182 underscore, backspace, character. Many pagers, such as B<less>, know how
183 to convert this to bold or underlined text.
185 =item B<-q> I<quotes>, B<--quotes>=I<quotes>
187 Sets the quote marks used to surround CE<lt>> text to I<quotes>. If
188 I<quotes> is a single character, it is used as both the left and right
189 quote; if I<quotes> is two characters, the first character is used as the
190 left quote and the second as the right quoted; and if I<quotes> is four
191 characters, the first two are used as the left quote and the second two as
194 I<quotes> may also be set to the special value C<none>, in which case no
195 quote marks are added around CE<lt>> text.
197 =item B<-s>, B<--sentence>
199 Assume each sentence ends with two spaces and try to preserve that spacing.
200 Without this option, all consecutive whitespace in non-verbatim paragraphs
201 is compressed into a single space.
203 =item B<-t>, B<--termcap>
205 Try to determine the width of the screen and the bold and underline
206 sequences for the terminal from termcap, and use that information in
207 formatting the output. Output will be wrapped at two columns less than the
208 width of your terminal device. Using this option requires that your system
209 have a termcap file somewhere where Term::Cap can find it and requires that
210 your system support termios. With this option, the output of B<pod2text>
211 will contain terminal control sequences for your current terminal type.
213 =item B<-w>, B<--width=>I<width>, B<->I<width>
215 The column at which to wrap text on the right-hand side. Defaults to 76,
216 unless B<-t> is given, in which case it's two columns less than the width of
217 your terminal device.
223 If B<pod2text> fails with errors, see L<Pod::Text> and L<Pod::Simple> for
224 information about what those errors might mean. Internally, it can also
225 produce the following diagnostics:
229 =item -c (--color) requires Term::ANSIColor be installed
231 (F) B<-c> or B<--color> were given, but Term::ANSIColor could not be
234 =item Unknown option: %s
236 (F) An unknown command line option was given.
240 In addition, other L<Getopt::Long> error messages may result from invalid
241 command-line options.
249 If B<-t> is given, B<pod2text> will take the current width of your screen
250 from this environment variable, if available. It overrides terminal width
251 information in TERMCAP.
255 If B<-t> is given, B<pod2text> will use the contents of this environment
256 variable if available to determine the correct formatting sequences for your
257 current terminal device.
263 L<Pod::Text>, L<Pod::Text::Color>, L<Pod::Text::Overstrike>,
264 L<Pod::Text::Termcap>, L<Pod::Simple>
266 The current version of this script is always available from its web site at
267 L<http://www.eyrie.org/~eagle/software/podlators/>. It is also part of the
268 Perl core distribution as of 5.6.0.
272 Russ Allbery <rra@stanford.edu>.
274 =head1 COPYRIGHT AND LICENSE
276 Copyright 1999, 2000, 2001, 2004 by Russ Allbery <rra@stanford.edu>.
278 This program is free software; you may redistribute it and/or modify it
279 under the same terms as Perl itself.
284 close OUT or die "Can't close $file: $!";
285 chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
286 exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';