diff options
author | Florian Ragwitz <rafl@debian.org> | 2011-07-07 23:13:23 +0200 |
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committer | Florian Ragwitz <rafl@debian.org> | 2011-07-07 23:55:18 +0200 |
commit | a2afbef4476f724afce78f808244bff05314ad11 (patch) | |
tree | add87d3577b612663f9123862b58df7a156bde59 /dist/Pod-Perldoc | |
parent | 1721346e4e4202173cdd07866e25e5833c6bd95a (diff) | |
download | perl-a2afbef4476f724afce78f808244bff05314ad11.tar.gz |
Move perldoc.pod to the dist it belongs to
Diffstat (limited to 'dist/Pod-Perldoc')
-rw-r--r-- | dist/Pod-Perldoc/lib/perldoc.pod | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/dist/Pod-Perldoc/lib/perldoc.pod b/dist/Pod-Perldoc/lib/perldoc.pod new file mode 100644 index 0000000000..d70625c451 --- /dev/null +++ b/dist/Pod-Perldoc/lib/perldoc.pod @@ -0,0 +1,269 @@ + +=head1 NAME + +perldoc - Look up Perl documentation in Pod format. + +=head1 SYNOPSIS + +B<perldoc> [B<-h>] [B<-D>] [B<-t>] [B<-u>] [B<-m>] [B<-l>] [B<-F>] +[B<-i>] [B<-V>] [B<-T>] [B<-r>] +[B<-dI<destination_file>>] +[B<-oI<formatname>>] +[B<-MI<FormatterClassName>>] +[B<-wI<formatteroption:value>>] +[B<-n>I<nroff-replacement>] +[B<-X>] +[B<-L> I<language_code>] +PageName|ModuleName|ProgramName + +B<perldoc> B<-f> BuiltinFunction + +B<perldoc> B<-L> it B<-f> BuiltinFunction + +B<perldoc> B<-q> FAQ Keyword + +B<perldoc> B<-L> fr B<-q> FAQ Keyword + +B<perldoc> B<-v> PerlVariable + +See below for more description of the switches. + +=head1 DESCRIPTION + +I<perldoc> looks up a piece of documentation in .pod format that is embedded +in the perl installation tree or in a perl script, and displays it via +C<pod2man | nroff -man | $PAGER>. (In addition, if running under HP-UX, +C<col -x> will be used.) This is primarily used for the documentation for +the perl library modules. + +Your system may also have man pages installed for those modules, in +which case you can probably just use the man(1) command. + +If you are looking for a table of contents to the Perl library modules +documentation, see the L<perltoc> page. + +=head1 OPTIONS + +=over 5 + +=item B<-h> + +Prints out a brief B<h>elp message. + +=item B<-D> + +B<D>escribes search for the item in B<d>etail. + +=item B<-t> + +Display docs using plain B<t>ext converter, instead of nroff. This may be faster, +but it probably won't look as nice. + +=item B<-u> + +Skip the real Pod formatting, and just show the raw Pod source (B<U>nformatted) + +=item B<-m> I<module> + +Display the entire module: both code and unformatted pod documentation. +This may be useful if the docs don't explain a function in the detail +you need, and you'd like to inspect the code directly; perldoc will find +the file for you and simply hand it off for display. + +=item B<-l> + +Display onB<l>y the file name of the module found. + +=item B<-F> + +Consider arguments as file names; no search in directories will be performed. + +=item B<-f> I<perlfunc> + +The B<-f> option followed by the name of a perl built-in function will +extract the documentation of this function from L<perlfunc>. + +Example: + + perldoc -f sprintf + + +=item B<-q> I<perlfaq-search-regexp> + +The B<-q> option takes a regular expression as an argument. It will search +the B<q>uestion headings in perlfaq[1-9] and print the entries matching +the regular expression. + +Example: + + perldoc -q shuffle + + +=item B<-v> I<perlvar> + +The B<-v> option followed by the name of a Perl predefined variable will +extract the documentation of this variable from L<perlvar>. + +Examples: + + perldoc -v '$"' + perldoc -v @+ + perldoc -v DATA + + +=item B<-T> + +This specifies that the output is not to be sent to a pager, but is to +be sent right to STDOUT. + +=item B<-d> I<destination-filename> + +This specifies that the output is to be sent neither to a pager nor +to STDOUT, but is to be saved to the specified filename. Example: +C<perldoc -oLaTeX -dtextwrapdocs.tex Text::Wrap> + +=item B<-o> I<output-formatname> + +This specifies that you want Perldoc to try using a Pod-formatting +class for the output format that you specify. For example: +C<-oman>. This is actually just a wrapper around the C<-M> switch; +using C<-oI<formatname>> just looks for a loadable class by adding +that format name (with different capitalizations) to the end of +different classname prefixes. + +For example, C<-oLaTeX> currently tries all of the following classes: +Pod::Perldoc::ToLaTeX Pod::Perldoc::Tolatex Pod::Perldoc::ToLatex +Pod::Perldoc::ToLATEX Pod::Simple::LaTeX Pod::Simple::latex +Pod::Simple::Latex Pod::Simple::LATEX Pod::LaTeX Pod::latex Pod::Latex +Pod::LATEX. + +=item B<-M> I<module-name> + +This specifies the module that you want to try using for formatting the +pod. The class must at least provide a C<parse_from_file> method. +For example: C<perldoc -MPod::Perldoc::ToChecker>. + +You can specify several classes to try by joining them with commas +or semicolons, as in C<-MTk::SuperPod;Tk::Pod>. + +=item B<-w> I<option:value> or B<-w> I<option> + +This specifies an option to call the formatter B<w>ith. For example, +C<-w textsize:15> will call +C<< $formatter->textsize(15) >> on the formatter object before it is +used to format the object. For this to be valid, the formatter class +must provide such a method, and the value you pass should be valid. +(So if C<textsize> expects an integer, and you do C<-w textsize:big>, +expect trouble.) + +You can use C<-w optionname> (without a value) as shorthand for +C<-w optionname:I<TRUE>>. This is presumably useful in cases of on/off +features like: C<-w page_numbering>. + +You can use an "=" instead of the ":", as in: C<-w textsize=15>. This +might be more (or less) convenient, depending on what shell you use. + +=item B<-X> + +Use an index if it is present. The B<-X> option looks for an entry +whose basename matches the name given on the command line in the file +C<$Config{archlib}/pod.idx>. The F<pod.idx> file should contain fully +qualified filenames, one per line. + +=item B<-L> I<language_code> + +This allows one to specify the I<language code> for the desired language +translation. If the C<POD2::E<lt>language_codeE<gt>> package isn't +installed in your system, the switch is ignored. +All available translation packages are to be found under the C<POD2::> +namespace. See L<POD2::IT> (or L<POD2::FR>) to see how to create new +localized C<POD2::*> documentation packages and integrate them into +L<Pod::Perldoc>. + +=item B<PageName|ModuleName|ProgramName> + +The item you want to look up. Nested modules (such as C<File::Basename>) +are specified either as C<File::Basename> or C<< File/Basename >>. You may also +give a descriptive name of a page, such as C<perlfunc>. + +For simple names like 'foo', when the normal search fails to find +a matching page, a search with the "perl" prefix is tried as well. +So "perldoc intro" is enough to find/render "perlintro.pod". + +=item B<-n> I<some-formatter> + +Specify replacement for nroff + +=item B<-r> + +Recursive search. + +=item B<-i> + +Ignore case. + +=item B<-V> + +Displays the version of perldoc you're running. + +=back + + + +=head1 SECURITY + +Because B<perldoc> does not run properly tainted, and is known to +have security issues, when run as the superuser it will attempt to +drop privileges by setting the effective and real IDs to nobody's +or nouser's account, or -2 if unavailable. If it cannot relinquish +its privileges, it will not run. + + +=head1 ENVIRONMENT + +Any switches in the C<PERLDOC> environment variable will be used before the +command line arguments. + +Useful values for C<PERLDOC> include C<-oman>, C<-otext>, C<-otk>, C<-ortf>, +C<-oxml>, and so on, depending on what modules you have on hand; or +the formatter class may be specified exactly with C<-MPod::Perldoc::ToMan> +or the like. + +C<perldoc> also searches directories +specified by the C<PERL5LIB> (or C<PERLLIB> if C<PERL5LIB> is not +defined) and C<PATH> environment variables. +(The latter is so that embedded pods for executables, such as +C<perldoc> itself, are available.) + +C<perldoc> will use, in order of preference, the pager defined in +C<PERLDOC_PAGER>, C<MANPAGER>, or C<PAGER> before trying to find a pager +on its own. (C<MANPAGER> is not used if C<perldoc> was told to display +plain text or unformatted pod.) + +One useful value for C<PERLDOC_PAGER> is C<less -+C -E>. + +Having PERLDOCDEBUG set to a positive integer will make perldoc emit +even more descriptive output than the C<-v> switch does; the higher the +number, the more it emits. + + +=head1 CHANGES + +Up to 3.14_05, the switch B<-v> was used to produce verbose +messages of B<perldoc> operation, which is now enabled by B<-D>. + +=head1 SEE ALSO + +L<perlpod>, L<Pod::Perldoc> + +=head1 AUTHOR + +Current maintainer: Adriano R. Ferreira <ferreira@cpan.org> + +Past contributors are: +Sean M. Burke <sburke@cpan.org>, +Kenneth Albanowski <kjahds@kjahds.com>, +Andy Dougherty <doughera@lafcol.lafayette.edu>, +and many others. + +=cut |