diff options
author | Gurusamy Sarathy <gsar@cpan.org> | 1999-10-02 06:39:14 +0000 |
---|---|---|
committer | Gurusamy Sarathy <gsar@cpan.org> | 1999-10-02 06:39:14 +0000 |
commit | 9741dab02becad0550bba7d5ca9e59f8ac608b2d (patch) | |
tree | 124f22971e5042f66438292552631dccd9604855 /pod | |
parent | 27f805f47766187affd2ea71d406ac389f4fe181 (diff) | |
download | perl-9741dab02becad0550bba7d5ca9e59f8ac608b2d.tar.gz |
update pod2man, pod2text and related Pod:: modules with the
ones in podlators-0.07 from Russ Allbery
p4raw-id: //depot/perl@4282
Diffstat (limited to 'pod')
-rw-r--r-- | pod/pod2man.PL | 1407 | ||||
-rw-r--r-- | pod/pod2text.PL | 72 |
2 files changed, 365 insertions, 1114 deletions
diff --git a/pod/pod2man.PL b/pod/pod2man.PL index bc74feb9e3..68d0c42b1e 100644 --- a/pod/pod2man.PL +++ b/pod/pod2man.PL @@ -9,7 +9,6 @@ use Cwd; # have to mention them as if they were shell variables, not # %Config entries. Thus you write # $startperl -# $man3ext # to ensure Configure will look for $Config{startperl}. # This forces PL files to create target in same directory as PL file. @@ -29,1212 +28,440 @@ print "Extracting $file (with variable substitutions)\n"; print OUT <<"!GROK!THIS!"; $Config{startperl} eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' - if \$running_under_some_shell; - -\$DEF_PM_SECTION = '$Config{man3ext}' || '3'; + if \$running_under_some_shell; !GROK!THIS! # In the following, perl variables are not expanded during extraction. print OUT <<'!NO!SUBS!'; -=head1 NAME - -pod2man - translate embedded Perl pod directives into man pages - -=head1 SYNOPSIS - -B<pod2man> -[ B<--section=>I<manext> ] -[ B<--release=>I<relpatch> ] -[ B<--center=>I<string> ] -[ B<--date=>I<string> ] -[ B<--fixed=>I<font> ] -[ B<--official> ] -[ B<--lax> ] -I<inputfile> - -=head1 DESCRIPTION - -B<pod2man> converts its input file containing embedded pod directives (see -L<perlpod>) into nroff source suitable for viewing with nroff(1) or -troff(1) using the man(7) macro set. - -Besides the obvious pod conversions, B<pod2man> also takes care of -func(), func(n), and simple variable references like $foo or @bar so -you don't have to use code escapes for them; complex expressions like -C<$fred{'stuff'}> will still need to be escaped, though. Other nagging -little roffish things that it catches include translating the minus in -something like foo-bar, making a long dash--like this--into a real em -dash, fixing up "paired quotes", putting a little space after the -parens in something like func(), making C++ and PI look right, making -double underbars have a little tiny space between them, making ALLCAPS -a teeny bit smaller in troff(1), and escaping backslashes so you don't -have to. - -=head1 OPTIONS - -=over 8 - -=item center - -Set the centered header to a specific string. The default is -"User Contributed Perl Documentation", unless the C<--official> flag is -given, in which case the default is "Perl Programmers Reference Guide". - -=item date - -Set the left-hand footer string to this value. By default, -the modification date of the input file will be used. - -=item fixed - -The fixed font to use for code refs. Defaults to CW. - -=item official - -Set the default header to indicate that this page is of -the standard release in case C<--center> is not given. - -=item release - -Set the centered footer. By default, this is the current -perl release. - -=item section - -Set the section for the C<.TH> macro. The standard conventions on -sections are to use 1 for user commands, 2 for system calls, 3 for -functions, 4 for devices, 5 for file formats, 6 for games, 7 for -miscellaneous information, and 8 for administrator commands. This works -best if you put your Perl man pages in a separate tree, like -F</usr/local/perl/man/>. By default, section 1 will be used -unless the file ends in F<.pm> in which case section 3 will be selected. - -=item lax - -Don't complain when required sections aren't present. - -=back - -=head1 Anatomy of a Proper Man Page - -For those not sure of the proper layout of a man page, here's -an example of the skeleton of a proper man page. Head of the -major headers should be setout as a C<=head1> directive, and -are historically written in the rather startling ALL UPPER CASE -format, although this is not mandatory. -Minor headers may be included using C<=head2>, and are -typically in mixed case. - -=over 10 - -=item NAME +# pod2man -- Convert POD data to formatted *roff input. +# +# Copyright 1999 by Russ Allbery <rra@stanford.edu> +# +# This program is free software; you can redistribute it and/or modify it +# under the same terms as Perl itself. +# +# The driver script for Pod::Man. This script is expected to eventually +# replace pod2man in the standard Perl distribution. + +require 5.004; + +use Getopt::Long qw(GetOptions); +use Pod::Man (); +use Pod::Usage qw(pod2usage); + +use strict; +use vars; + +# Parse our options, trying to retain backwards compatibility with pod2man +# but allowing short forms as well. --lax is currently ignored. +my %options; +Getopt::Long::config ('bundling'); +GetOptions (\%options, 'section|s=s', 'release|r=s', 'center|c=s', + 'date|d=s', 'fixed=s', 'fixedbold=s', 'fixeditalic=s', + 'fixedbolditalic=s', 'official|o', 'lax|l', 'help|h') or exit 1; +pod2usage (0) if $options{help}; + +# Official sets --center, but don't override things explicitly set. +if ($options{official} && !defined $options{center}) { + $options{center} = 'Perl Programmers Reference Guide'; +} -Mandatory section; should be a comma-separated list of programs or -functions documented by this podpage, such as: +# Initialize and run the formatter. +my $parser = Pod::Man->new (\%options); +$parser->parse_from_file (@ARGV); - foo, bar - programs to do something +__END__ -=item SYNOPSIS +=head1 NAME -A short usage summary for programs and functions, which -may someday be deemed mandatory. +pod2man - Convert POD data to formatted *roff input -=item DESCRIPTION +=head1 SYNOPSIS -Long drawn out discussion of the program. It's a good idea to break this -up into subsections using the C<=head2> directives, like +pod2txt [B<--section>=I<manext>] [B<--release>=I<version>] +[B<--center>=I<string>] [B<--date>=I<string>] [B<--fixed>=I<font>] +[B<--fixedbold>=I<font>] [B<--fixeditalic>=I<font>] +[B<--fixedbolditalic>=I<font>] [B<--official>] [B<--lax>] [I<input> +[I<output>]] - =head2 A Sample Subection +pod2txt B<--help> - =head2 Yet Another Sample Subection +=head1 DESCRIPTION -=item OPTIONS +B<pod2man> is a front-end for Pod::Man, using it to generate *roff input +from POD source. The resulting *roff code is suitable for display on a +terminal using nroff(1), normally via man(1), or printing using troff(1). + +I<input> is the file to read for POD source (the POD can be embedded in +code). If I<input> isn't given, it defaults to STDIN. I<output>, if given, +is the file to which to write the formatted output. If I<output> isn't +given, the formatted output is written to STDOUT. + +B<--section>, B<--release>, B<--center>, B<--date>, and B<--official> can be +used to set the headers and footers to use; if not given, Pod::Man will +assume various defaults. See below or L<Pod::Man> for details. + +B<pod2man> assumes that your *roff formatters have a fixed-width font named +CW. If yours is called something else (like CR), use B<--fixed> to specify +it. This generally only matters for troff output for printing. Similarly, +you can set the fonts used for bold, italic, and bold italic fixed-width +output. + +Besides the obvious pod conversions, Pod::Man, and therefore pod2man also +takes care of formatting func(), func(n), and simple variable references +like $foo or @bar so you don't have to use code escapes for them; complex +expressions like C<$fred{'stuff'}> will still need to be escaped, though. +It also translates dashes that aren't used as hyphens into en dashes, makes +long dashes--like this--into proper em dashes, fixes "paired quotes," and +takes care of several other troff-specific tweaks. See L<Pod::Man> for +complete information. -Some people make this separate from the description. +=head1 OPTIONS -=item RETURN VALUE +=over 4 -What the program or function returns if successful. +=item B<-c> I<string>, B<--center>=I<string> -=item ERRORS +Sets the centered page header to I<string>. The default is "User +Contributed Perl Documentation", but also see B<--official> below. -Exceptions, return codes, exit stati, and errno settings. +=item B<-d> I<string>, B<--date>=I<string> -=item EXAMPLES +Set the left-hand footer string to this value. By default, the modification +date of the input file will be used, or the current date if input comes from +STDIN. -Give some example uses of the program. +=item B<--fixed>=I<font> -=item ENVIRONMENT +The fixed-width font to use for vertabim text and code. Defaults to CW. +Some systems may want CR instead. Only matters for troff(1) output. -Envariables this program might care about. +=item B<--fixedbold>=I<font> -=item FILES +Bold version of the fixed-width font. Defaults to CB. Only matters for +troff(1) output. -All files used by the program. You should probably use the FE<lt>E<gt> -for these. +=item B<--fixeditalic>=I<font> -=item SEE ALSO +Italic version of the fixed-width font (actually, something of a misnomer, +since most fixed-width fonts only have an oblique version, not an italic +version). Defaults to CI. Only matters for troff(1) output. -Other man pages to check out, like man(1), man(7), makewhatis(8), or catman(8). +=item B<--fixedbolditalic>=I<font> -=item NOTES +Bold italic (probably actually oblique) version of the fixed-width font. +Pod::Man doesn't assume you have this, and defaults to CB. Some systems +(such as Solaris) have this font available as CX. Only matters for troff(1) +output. -Miscellaneous commentary. +=item B<-h>, B<--help> -=item CAVEATS +Print out usage information. -Things to take special care with; sometimes called WARNINGS. +=item B<-l>, B<--lax> -=item DIAGNOSTICS +Don't complain when required sections are missing. Not currently used, as +POD checking functionality is not yet implemented in Pod::Man. -All possible messages the program can print out--and -what they mean. +=item B<-o>, B<--official> -=item BUGS +Set the default header to indicate that this page is part of the standard +Perl release, if B<--center> is not also given. -Things that are broken or just don't work quite right. +=item B<-r>, B<--release> -=item RESTRICTIONS +Set the centered footer. By default, this is the version of Perl you run +B<pod2man> under. Note that some system an macro sets assume that the +centered footer will be a modification date and will prepend something like +"Last modified: "; if this is the case, you may want to set B<--release> to +the last modified date and B<--date> to the version number. -Bugs you don't plan to fix :-) +=item B<-s>, B<--section> -=item AUTHOR +Set the section for the C<.TH> macro. The standard section numbering +convention is to use 1 for user commands, 2 for system calls, 3 for +functions, 4 for devices, 5 for file formats, 6 for games, 7 for +miscellaneous information, and 8 for administrator commands. There is a lot +of variation here, however; some systems (like Solaris) use 4 for file +formats, 5 for miscellaneous information, and 7 for devices. Still others +use 1m instead of 8, or some mix of both. About the only section numbers +that are reliably consistent are 1, 2, and 3. -Who wrote it (or AUTHORS if multiple). +By default, section 1 will be used unless the file ends in .pm in which case +section 3 will be selected. -=item HISTORY +=back -Programs derived from other sources sometimes have this, or -you might keep a modification log here. +=head1 DIAGNOSTICS -=back +If B<pod2man> fails with errors, see L<Pod::Man> and L<Pod::Parser> for +information about what those errors might mean. =head1 EXAMPLES pod2man program > program.1 - pod2man some_module.pm > /usr/perl/man/man3/some_module.3 + pod2man SomeModule.pm /usr/perl/man/man3/SomeModule.3 pod2man --section=7 note.pod > note.7 -=head1 DIAGNOSTICS +If you would like to print out a lot of man page continuously, you probably +want to set the C and D registers to set contiguous page numbering and +even/odd paging, at least on some versions of man(7). -The following diagnostics are generated by B<pod2man>. Items -marked "(W)" are non-fatal, whereas the "(F)" errors will cause -B<pod2man> to immediately exit with a non-zero status. + troff -man -rC1 -rD1 perl.1 perldata.1 perlsyn.1 ... -=over 4 +To get index entries on stderr, turn on the F register, as in: -=item bad option in paragraph %d of %s: ``%s'' should be [%s]<%s> + troff -man -rF1 perl.1 -(W) If you start include an option, you should set it off -as bold, italic, or code. +The indexing merely outputs messages via C<.tm> for each major page, +section, subsection, item, and any C<XE<lt>E<gt>> directives. See +L<Pod::Man> for more details. -=item can't open %s: %s +=head1 BUGS -(F) The input file wasn't available for the given reason. +Lots of this documentation is duplicated from L<Pod::Man>. -=item Improper man page - no dash in NAME header in paragraph %d of %s +POD checking and the corresponding B<--lax> option don't work yet. -(W) The NAME header did not have an isolated dash in it. This is -considered important. +=head1 NOTES -=item Invalid man page - no NAME line in %s +For those not sure of the proper layout of a man page, here are some notes +on writing a proper man page. -(F) You did not include a NAME header, which is essential. +The name of the program being documented is conventionally written in bold +(using BE<lt>E<gt>) wherever it occurs, as are all program options. +Arguments should be written in italics (IE<lt>E<gt>). Functions are +traditionally written in italics; if you write a function as function(), +Pod::Man will take care of this for you. Literal code or commands should +be in CE<lt>E<gt>. References to other man pages should be in the form +C<manpage(section)>, and Pod::Man will automatically format those +appropriately. As an exception, it's traditional not to use this form when +referring to module documentation; use C<LE<lt>Module::NameE<gt>> instead. -=item roff font should be 1 or 2 chars, not `%s' (F) +References to other programs or functions are normally in the form of man +page references so that cross-referencing tools can provide the user with +links and the like. It's possible to overdo this, though, so be careful not +to clutter your documentation with too much markup. -(F) The font specified with the C<--fixed> option was not -a one- or two-digit roff font. +The major headers should be set out using a C<=head1> directive, and are +historically written in the rather startling ALL UPPER CASE format, although +this is not mandatory. Minor headers may be included using C<=head2>, and +are typically in mixed case. -=item %s is missing required section: %s +The standard sections of a manual page are: -(W) Required sections include NAME, DESCRIPTION, and if you're -using a section starting with a 3, also a SYNOPSIS. Actually, -not having a NAME is a fatal. +=over 4 -=item Unknown escape: %s in %s +=item NAME -(W) An unknown HTML entity (probably for an 8-bit character) was given via -a C<EE<lt>E<gt>> directive. Besides amp, lt, gt, and quot, recognized -entities are Aacute, aacute, Acirc, acirc, AElig, aelig, Agrave, agrave, -Aring, aring, Atilde, atilde, Auml, auml, Ccedil, ccedil, Eacute, eacute, -Ecirc, ecirc, Egrave, egrave, ETH, eth, Euml, euml, Iacute, iacute, Icirc, -icirc, Igrave, igrave, Iuml, iuml, Ntilde, ntilde, Oacute, oacute, Ocirc, -ocirc, Ograve, ograve, Oslash, oslash, Otilde, otilde, Ouml, ouml, szlig, -THORN, thorn, Uacute, uacute, Ucirc, ucirc, Ugrave, ugrave, Uuml, uuml, -Yacute, yacute, and yuml. +Mandatory section; should be a comma-separated list of programs or functions +documented by this podpage, such as: -=item Unmatched =back + foo, bar - programs to do something -(W) You have a C<=back> without a corresponding C<=over>. +Manual page indexers are often extremely picky about the format of this +section, so don't put anything in it except this line. A single dash, and +only a single dash, should separate the list of programs or functions from +the description. Functions should not be qualified with C<()> or the like. +The description should ideally fit on a single line, even if a man program +replaces the dash with a few tabs. -=item Unrecognized pod directive: %s +=item SYNOPSIS -(W) You specified a pod directive that isn't in the known list of -C<=head1>, C<=head2>, C<=item>, C<=over>, C<=back>, or C<=cut>. +A short usage summary for programs and functions. This section is mandatory +for section 3 pages. +=item DESCRIPTION -=back +Extended description and discussion of the program or functions, or the body +of the documentation for man pages that document something else. If +particularly long, it's a good idea to break this up into subsections +C<=head2> directives like: -=head1 NOTES + =head2 Normal Usage -If you would like to print out a lot of man page continuously, you -probably want to set the C and D registers to set contiguous page -numbering and even/odd paging, at least on some versions of man(7). -Settting the F register will get you some additional experimental -indexing: + =head2 Advanced Features - troff -man -rC1 -rD1 -rF1 perl.1 perldata.1 perlsyn.1 ... + =head2 Writing Configuration Files -The indexing merely outputs messages via C<.tm> for each -major page, section, subsection, item, and any C<XE<lt>E<gt>> -directives. +or whatever is appropriate for your documentation. +=item OPTIONS -=head1 RESTRICTIONS +Detailed description of each of the command-line options taken by the +program. This should be separate from the description for the use of things +like L<Pod::Usage|Pod::Usage>. This is normally presented as a list, with +each option as a separate C<=item>. The specific option string should be +enclosed in BE<lt>E<gt>. Any values that the option takes should be +enclosed in IE<lt>E<gt>. For example, the section for the option +B<--section>=I<manext> would be introduced with: -None at this time. + =item B<--section>=I<manext> -=head1 BUGS +Synonymous options (like both the short and long forms) are separated by a +comma and a space on the same C<=item> line, or optionally listed as their +own item with a reference to the canonical name. For example, since +B<--section> can also be written as B<-s>, the above would be: -The =over and =back directives don't really work right. They -take absolute positions instead of offsets, don't nest well, and -making people count is suboptimal in any event. + =item B<-s> I<manext>, B<--section>=I<manext> -=head1 AUTHORS +(Writing the short option first is arguably easier to read, since the long +option is long enough to draw the eye to it anyway and the short option can +otherwise get lost in visual noise.) -Original prototype by Larry Wall, but so massively hacked over by -Tom Christiansen such that Larry probably doesn't recognize it anymore. +=item RETURN VALUE -=cut +What the program or function returns, if successful. This section can be +omitted for programs whose precise exit codes aren't important, provided +they return 0 on success as is standard. It should always be present for +functions. -$/ = ""; -$cutting = 1; -@Indices = (); - -# We try first to get the version number from a local binary, in case we're -# running an installed version of Perl to produce documentation from an -# uninstalled newer version's pod files. -if ($^O ne 'plan9' and $^O ne 'dos' and $^O ne 'os2' and $^O ne 'MSWin32') { - my $perl = (-x './perl' && -f './perl' ) ? - './perl' : - ((-x '../perl' && -f '../perl') ? - '../perl' : - ''); - ($version,$patch) = `$perl -e 'print $]'` =~ /^(\d\.\d{3})(\d{2})?/ if $perl; -} -# No luck; we'll just go with the running Perl's version -($version,$patch) = $] =~ /^(.{5})(\d{2})?/ unless $version; -$DEF_RELEASE = "perl $version"; -$DEF_RELEASE .= ", patch $patch" if $patch; - - -sub makedate { - my $secs = shift; - my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($secs); - my $mname = (qw{Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec})[$mon]; - $year += 1900; - return "$mday/$mname/$year"; -} +=item ERRORS -use Getopt::Long; - -$DEF_SECTION = 1; -$DEF_CENTER = "User Contributed Perl Documentation"; -$STD_CENTER = "Perl Programmers Reference Guide"; -$DEF_FIXED = 'CW'; -$DEF_LAX = 0; - -sub usage { - warn "$0: @_\n" if @_; - die <<EOF; -usage: $0 [options] podpage -Options are: - --section=manext (default "$DEF_SECTION") - --release=relpatch (default "$DEF_RELEASE") - --center=string (default "$DEF_CENTER") - --date=string (default "$DEF_DATE") - --fixed=font (default "$DEF_FIXED") - --official (default NOT) - --lax (default NOT) -EOF -} +Exceptions, error return codes, exit stati, and errno settings. Typically +used for function documentation; program documentation uses DIAGNOSTICS +instead. The general rule of thumb is that errors printed to STDOUT or +STDERR and intended for the end user are documented in DIAGNOSTICS while +errors passed internal to the calling program and intended for other +programmers are documented in ERRORS. When documenting a function that sets +errno, a full list of the possible errno values should be given here. -$uok = GetOptions( qw( - section=s - release=s - center=s - date=s - fixed=s - official - lax - help)); +=item DIAGNOSTICS -$DEF_DATE = makedate((stat($ARGV[0]))[9] || time()); +All possible messages the program can print out--and what they mean. You +may wish to follow the same documentation style as the Perl documentation; +see perldiag(1) for more details (and look at the POD source as well). -usage("Usage error!") unless $uok; -usage() if $opt_help; -usage("Need one and only one podpage argument") unless @ARGV == 1; +If applicable, please include details on what the user should do to correct +the error; documenting an error as indicating "the input buffer is too +small" without telling the user how to increase the size of the input buffer +(or at least telling them that it isn't possible) aren't very useful. -$section = $opt_section || ($ARGV[0] =~ /\.pm$/ - ? $DEF_PM_SECTION : $DEF_SECTION); -$RP = $opt_release || $DEF_RELEASE; -$center = $opt_center || ($opt_official ? $STD_CENTER : $DEF_CENTER); -$lax = $opt_lax || $DEF_LAX; +=item EXAMPLES -$CFont = $opt_fixed || $DEF_FIXED; +Give some example uses of the program or function. Don't skimp; users often +find this the most useful part of the documentation. The examples are +generally given as verbatim paragraphs. -if (length($CFont) == 2) { - $CFont_embed = "\\f($CFont"; -} -elsif (length($CFont) == 1) { - $CFont_embed = "\\f$CFont"; -} -else { - die "roff font should be 1 or 2 chars, not `$CFont_embed'"; -} +Don't just present an example without explaining what it does. Adding a +short paragraph saying what the example will do can increase the value of +the example immensely. -$date = $opt_date || $DEF_DATE; +=item ENVIRONMENT -for (qw{NAME DESCRIPTION}) { -# for (qw{NAME DESCRIPTION AUTHOR}) { - $wanna_see{$_}++; -} -$wanna_see{SYNOPSIS}++ if $section =~ /^3/; +Environment variables that the program cares about, normally presented as a +list using C<=over>, C<=item>, and C<=back>. For example: + =over 6 -$name = @ARGV ? $ARGV[0] : "<STDIN>"; -$Filename = $name; -if ($section =~ /^1/) { - require File::Basename; - $name = uc File::Basename::basename($name); -} -$name =~ s/\.(pod|p[lm])$//i; - -# Lose everything up to the first of -# */lib/*perl* standard or site_perl module -# */*perl*/lib from -D prefix=/opt/perl -# */*perl*/ random module hierarchy -# which works. -$name =~ s-//+-/-g; -if ($name =~ s-^.*?/lib/[^/]*perl[^/]*/--i - or $name =~ s-^.*?/[^/]*perl[^/]*/lib/--i - or $name =~ s-^.*?/[^/]*perl[^/]*/--i) { - # Lose ^site(_perl)?/. - $name =~ s-^site(_perl)?/--; - # Lose ^arch/. (XXX should we use Config? Just for archname?) - $name =~ s~^(.*-$^O|$^O-.*)/~~o; - # Lose ^version/. - $name =~ s-^\d+\.\d+/--; -} + =item HOME -# Translate Getopt/Long to Getopt::Long, etc. -$name =~ s(/)(::)g; - -if ($name ne 'something') { - FCHECK: { - open(F, "< $ARGV[0]") || die "can't open $ARGV[0]: $!"; - while (<F>) { - next unless /^=\b/; - if (/^=head1\s+NAME\s*$/) { # an /m would forgive mistakes - $_ = <F>; - unless (/\s*-+\s+/) { - $oops++; - warn "$0: Improper man page - no dash in NAME header in paragraph $. of $ARGV[0]\n" - } else { - my @n = split /\s+-+\s+/; - if (@n != 2) { - $oops++; - warn "$0: Improper man page - malformed NAME header in paragraph $. of $ARGV[0]\n" - } - else { - %namedesc = @n; - } - } - last FCHECK; - } - next if /^=cut\b/; # DB_File and Net::Ping have =cut before NAME - next if /^=pod\b/; # It is OK to have =pod before NAME - die "$0: Invalid man page - 1st pod line is not NAME in $ARGV[0]\n" unless $lax; - } - die "$0: Invalid man page - no documentation in $ARGV[0]\n" unless $lax; - } - close F; -} + Used to determine the user's home directory. F<.foorc> in this + directory is read for configuration details, if it exists. -print <<"END"; -.rn '' }` -''' \$RCSfile\$\$Revision\$\$Date\$ -''' -''' \$Log\$ -''' -.de Sh -.br -.if t .Sp -.ne 5 -.PP -\\fB\\\\\$1\\fR -.PP -.. -.de Sp -.if t .sp .5v -.if n .sp -.. -.de Ip -.br -.ie \\\\n(.\$>=3 .ne \\\\\$3 -.el .ne 3 -.IP "\\\\\$1" \\\\\$2 -.. -.de Vb -.ft $CFont -.nf -.ne \\\\\$1 -.. -.de Ve -.ft R - -.fi -.. -''' -''' -''' Set up \\*(-- to give an unbreakable dash; -''' string Tr holds user defined translation string. -''' Bell System Logo is used as a dummy character. -''' -.tr \\(*W-|\\(bv\\*(Tr -.ie n \\{\\ -.ds -- \\(*W- -.ds PI pi -.if (\\n(.H=4u)&(1m=24u) .ds -- \\(*W\\h'-12u'\\(*W\\h'-12u'-\\" diablo 10 pitch -.if (\\n(.H=4u)&(1m=20u) .ds -- \\(*W\\h'-12u'\\(*W\\h'-8u'-\\" diablo 12 pitch -.ds L" "" -.ds R" "" -''' \\*(M", \\*(S", \\*(N" and \\*(T" are the equivalent of -''' \\*(L" and \\*(R", except that they are used on ".xx" lines, -''' such as .IP and .SH, which do another additional levels of -''' double-quote interpretation -.ds M" """ -.ds S" """ -.ds N" """"" -.ds T" """"" -.ds L' ' -.ds R' ' -.ds M' ' -.ds S' ' -.ds N' ' -.ds T' ' -'br\\} -.el\\{\\ -.ds -- \\(em\\| -.tr \\*(Tr -.ds L" `` -.ds R" '' -.ds M" `` -.ds S" '' -.ds N" `` -.ds T" '' -.ds L' ` -.ds R' ' -.ds M' ` -.ds S' ' -.ds N' ` -.ds T' ' -.ds PI \\(*p -'br\\} -END - -print <<'END'; -.\" If the F register is turned on, we'll generate -.\" index entries out stderr for the following things: -.\" TH Title -.\" SH Header -.\" Sh Subsection -.\" Ip Item -.\" X<> Xref (embedded -.\" Of course, you have to process the output yourself -.\" in some meaninful fashion. -.if \nF \{ -.de IX -.tm Index:\\$1\t\\n%\t"\\$2" -.. -.nr % 0 -.rr F -.\} -END - -print <<"END"; -.TH $name $section "$date" "$RP" "$center" -.UC -END - -push(@Indices, qq{.IX Title "$name $section"}); - -while (($name, $desc) = each %namedesc) { - for ($name, $desc) { s/^\s+//; s/\s+$//; } - push(@Indices, qq(.IX Name "$name - $desc"\n)); -} + =back -print <<'END'; -.if n .hy 0 -.if n .na -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -.de CQ \" put $1 in typewriter font -END -print ".ft $CFont\n"; -print <<'END'; -'if n "\c -'if t \\&\\$1\c -'if n \\&\\$1\c -'if n \&" -\\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7 -'.ft R -.. -.\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2 -. \" AM - accent mark definitions -.bd B 3 -. \" fudge factors for nroff and troff -.if n \{\ -. ds #H 0 -. ds #V .8m -. ds #F .3m -. ds #[ \f1 -. ds #] \fP -.\} -.if t \{\ -. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -. ds #V .6m -. ds #F 0 -. ds #[ \& -. ds #] \& -.\} -. \" simple accents for nroff and troff -.if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds ? ? -. ds ! ! -. ds / -. ds q -.\} -.if t \{\ -. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -. ds ? \s-2c\h'-\w'c'u*7/10'\u\h'\*(#H'\zi\d\s+2\h'\w'c'u*8/10' -. ds ! \s-2\(or\s+2\h'-\w'\(or'u'\v'-.8m'.\v'.8m' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -. ds q o\h'-\w'o'u*8/10'\s-4\v'.4m'\z\(*i\v'-.4m'\s+4\h'\w'o'u*8/10' -.\} -. \" troff and (daisy-wheel) nroff accents -.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' -.ds 8 \h'\*(#H'\(*b\h'-\*(#H' -.ds v \\k:\h'-(\\n(.wu*9/10-\*(#H)'\v'-\*(#V'\*(#[\s-4v\s0\v'\*(#V'\h'|\\n:u'\*(#] -.ds _ \\k:\h'-(\\n(.wu*9/10-\*(#H+(\*(#F*2/3))'\v'-.4m'\z\(hy\v'.4m'\h'|\\n:u' -.ds . \\k:\h'-(\\n(.wu*8/10)'\v'\*(#V*4/10'\z.\v'-\*(#V*4/10'\h'|\\n:u' -.ds 3 \*(#[\v'.2m'\s-2\&3\s0\v'-.2m'\*(#] -.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] -.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' -.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' -.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] -.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] -.ds ae a\h'-(\w'a'u*4/10)'e -.ds Ae A\h'-(\w'A'u*4/10)'E -.ds oe o\h'-(\w'o'u*4/10)'e -.ds Oe O\h'-(\w'O'u*4/10)'E -. \" corrections for vroff -.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' -.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -. \" for low resolution devices (crt and lpr) -.if \n(.H>23 .if \n(.V>19 \ -\{\ -. ds : e -. ds 8 ss -. ds v \h'-1'\o'\(aa\(ga' -. ds _ \h'-1'^ -. ds . \h'-1'. -. ds 3 3 -. ds o a -. ds d- d\h'-1'\(ga -. ds D- D\h'-1'\(hy -. ds th \o'bp' -. ds Th \o'LP' -. ds ae ae -. ds Ae AE -. ds oe oe -. ds Oe OE -.\} -.rm #[ #] #H #V #F C -END - -$indent = 0; - -$begun = ""; - -# Unrolling [^-=A-Z>]|[A-Z](?!<)|[-=](?![A-Z]<)[\x00-\xFF] gives: // MRE pp 165. -my $nonest = q{(?x) # Turn on /x mode. - (?: # Group - [^-=A-Z>]* # Anything that isn't a dash, equal sign or - # closing hook isn't special. Eat as much as - # we can. - (?: # Group. - (?: # Group. - [-=] # We want to recognize -> and =>. - (?![A-Z]<) # So, as long as it isn't followed by markup - [\x00-\xFF] # anything may follow - and = - | - [A-Z] # Capitals are fine too, - (?!<) # But not if they start markup. - ) # End of special sequences. - [^-=A-Z>]* # Followed by zero or more non-special chars. - )* # And we can repeat this as often as we can. - )}; # That's all folks. - -while (<>) { - if ($cutting) { - next unless /^=/; - $cutting = 0; - } - if ($begun) { - if (/^=end\s+$begun/) { - $begun = ""; - } - elsif ($begun =~ /^(roff|man)$/) { - print STDOUT $_; - } - next; - } - chomp; - - # Translate verbatim paragraph - - if (/^\s/) { - @lines = split(/\n/); - for (@lines) { - 1 while s - {^( [^\t]* ) \t ( \t* ) } - { $1 . ' ' x (8 - (length($1)%8) + 8 * (length($2))) }ex; - s/\\/\\e/g; - s/\A/\\&/s; - } - $lines = @lines; - makespace() unless $verbatim++; - print ".Vb $lines\n"; - print join("\n", @lines), "\n"; - print ".Ve\n"; - $needspace = 0; - next; - } - - $verbatim = 0; - - if (/^=for\s+(\S+)\s*/s) { - if ($1 eq "man" or $1 eq "roff") { - print STDOUT $',"\n\n"; - } else { - # ignore unknown for - } - next; - } - elsif (/^=begin\s+(\S+)\s*/s) { - $begun = $1; - if ($1 eq "man" or $1 eq "roff") { - print STDOUT $'."\n\n"; - } - next; - } - - # check for things that'll hosed our noremap scheme; affects $_ - init_noremap(); - - if (!/^=item/) { - - # trofficate backslashes; must do it before what happens below - s/\\/noremap('\\e')/ge; - - # protect leading periods and quotes against *roff - # mistaking them for directives - s/^(?:[A-Z]<)?[.']/\\&$&/gm; - - # first hide the escapes in case we need to - # intuit something and get it wrong due to fmting - - 1 while s/([A-Z]<$nonest>)/noremap($1)/ge; - - # func() is a reference to a perl function - s{ - \b - ( - [:\w]+ \(\) - ) - } {I<$1>}gx; - - # func(n) is a reference to a perl function or a man page - s{ - ([:\w]+) - ( - \( [^\051]+ \) - ) - } {I<$1>\\|$2}gx; - - # convert simple variable references - s/(\s+)([\$\@%&*][\w:]+)(?!\()/${1}C<$2>/g; - - if (m{ ( - [\-\w]+ - \( - [^\051]*? - [\@\$,] - [^\051]*? - \) - ) - }x && $` !~ /([LCI]<[^<>]*|-)$/ && !/^=\w/) - { - warn "$0: bad option in paragraph $. of $ARGV: ``$1'' should be [LCI]<$1>\n"; - $oops++; - } - - while (/(-[a-zA-Z])\b/g && $` !~ /[\w\-]$/) { - warn "$0: bad option in paragraph $. of $ARGV: ``$1'' should be [CB]<$1>\n"; - $oops++; - } - - # put it back so we get the <> processed again; - clear_noremap(0); # 0 means leave the E's - - } else { - # trofficate backslashes - s/\\/noremap('\\e')/ge; - - } - - # need to hide E<> first; they're processed in clear_noremap - s/(E<[^<>]+>)/noremap($1)/ge; - - - $maxnest = 10; - while ($maxnest-- && /[A-Z]</) { - - # can't do C font here - s/([BI])<($nonest)>/font($1) . $2 . font('R')/eg; - - # files and filelike refs in italics - s/F<($nonest)>/I<$1>/g; - - # no break -- usually we want C<> for this - s/S<($nonest)>/nobreak($1)/eg; - - # LREF: a la HREF L<show this text|man/section> - s:L<([^|>]+)\|[^>]+>:$1:g; - - # LREF: a manpage(3f) - s:L<([a-zA-Z][^\s\/]+)(\([^\)]+\))?>:the I<$1>$2 manpage:g; - - # LREF: an =item on another manpage - s{ - L< - ([^/]+) - / - ( - [:\w]+ - (\(\))? - ) - > - } {the C<$2> entry in the I<$1> manpage}gx; - - # LREF: an =item on this manpage - s{ - ((?: - L< - / - ( - [:\w]+ - (\(\))? - ) - > - (,?\s+(and\s+)?)? - )+) - } { internal_lrefs($1) }gex; - - # LREF: a =head2 (head1?), maybe on a manpage, maybe right here - # the "func" can disambiguate - s{ - L< - (?: - ([a-zA-Z]\S+?) / - )? - "?(.*?)"? - > - }{ - do { - $1 # if no $1, assume it means on this page. - ? "the section on I<$2> in the I<$1> manpage" - : "the section on I<$2>" - } - }gesx; # s in case it goes over multiple lines, so . matches \n - - s/Z<>/\\&/g; - - # comes last because not subject to reprocessing - s/C<($nonest)>/noremap("${CFont_embed}${1}\\fR")/eg; - } - - if (s/^=//) { - $needspace = 0; # Assume this. - - s/\n/ /g; - - ($Cmd, $_) = split(' ', $_, 2); - - $dotlevel = 1; - if ($Cmd eq 'head1') { - $dotlevel = 1; - } - elsif ($Cmd eq 'head2') { - $dotlevel = 1; - } - elsif ($Cmd eq 'item') { - $dotlevel = 2; - } - - if (defined $_) { - &escapes($dotlevel); - s/"/""/g; - } - - clear_noremap(1); - - if ($Cmd eq 'cut') { - $cutting = 1; - } - elsif ($Cmd eq 'head1') { - s/\s+$//; - delete $wanna_see{$_} if exists $wanna_see{$_}; - print qq{.SH "$_"\n}; - push(@Indices, qq{.IX Header "$_"\n}); - } - elsif ($Cmd eq 'head2') { - print qq{.Sh "$_"\n}; - push(@Indices, qq{.IX Subsection "$_"\n}); - } - elsif ($Cmd eq 'over') { - push(@indent,$indent); - $indent += ($_ + 0) || 5; - if ($#indent > 0) { - print ".RS ", $indent[$#indent] - $indent[$#indent - 1], "\n"; - } - } - elsif ($Cmd eq 'back') { - $indent = pop(@indent); - warn "$0: Unmatched =back in paragraph $. of $ARGV\n" unless defined $indent; - if ($#indent >= 0) { - print ".RE\n"; - } - $needspace = 1; - } - elsif ($Cmd eq 'item') { - s/^\*( |$)/\\(bu$1/g; - # if you know how to get ":s please do - s/\\\*\(L"([^"]+?)\\\*\(R"/'$1'/g; - s/\\\*\(L"([^"]+?)""/'$1'/g; - s/[^"]""([^"]+?)""[^"]/'$1'/g; - # here do something about the $" in perlvar? - print STDOUT qq{.Ip "$_" $indent-$indent[$#indent]\n}; - push(@Indices, qq{.IX Item "$_"\n}); - } - elsif ($Cmd eq 'pod') { - # this is just a comment - } - else { - warn "$0: Unrecognized pod directive in paragraph $. of $ARGV: $Cmd\n"; - } - } - else { - if ($needspace) { - &makespace; - } - &escapes(0); - clear_noremap(1); - print $_, "\n"; - $needspace = 1; - } -} +Since environment variables are normally in all uppercase, no additional +special formatting is generally needed; they're glaring enough as it is. -print <<"END"; +=item FILES -.rn }` '' -END +All files used by the program or function, normally presented as a list, and +what it uses them for. File names should be enclosed in FE<lt>E<gt>. It's +particularly important to document files that will be potentially modified. -if (%wanna_see && !$lax) { - @missing = keys %wanna_see; - warn "$0: $Filename is missing required section" - . (@missing > 1 && "s") - . ": @missing\n"; - $oops++; -} +=item CAVEATS -foreach (@Indices) { print "$_\n"; } +Things to take special care with, sometimes called WARNINGS. -exit; -#exit ($oops != 0); +=item BUGS -######################################################################### +Things that are broken or just don't work quite right. -sub nobreak { - my $string = shift; - $string =~ s/ /\\ /g; - $string; -} +=item RESTRICTIONS -sub escapes { - my $indot = shift; - - s/X<(.*?)>/mkindex($1)/ge; - - # translate the minus in foo-bar into foo\-bar for roff - s/([^0-9a-z-])-([^-])/$1\\-$2/g; - - # make -- into the string version \*(-- (defined above) - s/\b--\b/\\*(--/g; - s/"--([^"])/"\\*(--$1/g; # should be a better way - s/([^"])--"/$1\\*(--"/g; - - # fix up quotes; this is somewhat tricky - my $dotmacroL = 'L'; - my $dotmacroR = 'R'; - if ( $indot == 1 ) { - $dotmacroL = 'M'; - $dotmacroR = 'S'; - } - elsif ( $indot >= 2 ) { - $dotmacroL = 'N'; - $dotmacroR = 'T'; - } - if (!/""/) { - s/(^|\s)(['"])/noremap("$1\\*($dotmacroL$2")/ge; - s/(['"])($|[\-\s,;\\!?.])/noremap("\\*($dotmacroR$1$2")/ge; - } - - #s/(?!")(?:.)--(?!")(?:.)/\\*(--/g; - #s/(?:(?!")(?:.)--(?:"))|(?:(?:")--(?!")(?:.))/\\*(--/g; - - - # make sure that func() keeps a bit a space tween the parens - ### s/\b\(\)/\\|()/g; - ### s/\b\(\)/(\\|)/g; - - # make C++ into \*C+, which is a squinched version (defined above) - s/\bC\+\+/\\*(C+/g; - - # make double underbars have a little tiny space between them - s/__/_\\|_/g; - - # PI goes to \*(PI (defined above) - s/\bPI\b/noremap('\\*(PI')/ge; - - # make all caps a teeny bit smaller, but don't muck with embedded code literals - my $hidCFont = font('C'); - if ($Cmd !~ /^head1/) { # SH already makes smaller - # /g isn't enough; 1 while or we'll be off - -# 1 while s{ -# (?!$hidCFont)(..|^.|^) -# \b -# ( -# [A-Z][\/A-Z+:\-\d_$.]+ -# ) -# (s?) -# \b -# } {$1\\s-1$2\\s0}gmox; - - 1 while s{ - (?!$hidCFont)(..|^.|^) - ( - \b[A-Z]{2,}[\/A-Z+:\-\d_\$]*\b - ) - } { - $1 . noremap( '\\s-1' . $2 . '\\s0' ) - }egmox; - - } -} +Bugs you don't plan to fix. :-) -# make troff just be normal, but make small nroff get quoted -# decided to just put the quotes in the text; sigh; -sub ccvt { - local($_,$prev) = @_; - noremap(qq{.CQ "$_" \n\\&}); -} +=item NOTES -sub makespace { - if ($indent) { - print ".Sp\n"; - } - else { - print ".PP\n"; - } -} +Miscellaneous commentary. -sub mkindex { - my ($entry) = @_; - my @entries = split m:\s*/\s*:, $entry; - push @Indices, ".IX Xref " . join ' ', map {qq("$_")} @entries; - return ''; -} +=item SEE ALSO -sub font { - local($font) = shift; - return '\\f' . noremap($font); -} +Other man pages to check out, like man(1), man(7), makewhatis(8), or +catman(8). Normally a simple list of man pages separated by commas, or a +paragraph giving the name of a reference work. Man page references, if they +use the standard C<name(section)> form, don't have to be enclosed in +LE<lt>E<gt>, but other things in this section probably should be when +appropriate. You may need to use the C<LE<lt>...|...E<gt>> syntax to keep +B<pod2man> and B<pod2text> from being too verbose; see perlpod(1). -sub noremap { - local($thing_to_hide) = shift; - $thing_to_hide =~ tr/\000-\177/\200-\377/; - return $thing_to_hide; -} +If the package has a web site, include a URL here. -sub init_noremap { - # escape high bit characters in input stream - s/([\200-\377])/"E<".ord($1).">"/ge; -} +=item AUTHOR -sub clear_noremap { - my $ready_to_print = $_[0]; - - tr/\200-\377/\000-\177/; - - # trofficate backslashes - # s/(?!\\e)(?:..|^.|^)\\/\\e/g; - - # now for the E<>s, which have been hidden until now - # otherwise the interative \w<> processing would have - # been hosed by the E<gt> - s { - E< - ( - ( \d + ) - | ( [A-Za-z]+ ) - ) - > - } { - do { - defined $2 - ? chr($2) - : - exists $HTML_Escapes{$3} - ? do { $HTML_Escapes{$3} } - : do { - warn "$0: Unknown escape in paragraph $. of $ARGV: ``$&''\n"; - "E<$1>"; - } - } - }egx if $ready_to_print; -} +Who wrote it (use AUTHORS for multiple people). Including your current +e-mail address (or some e-mail address to which bug reports should be sent) +so that users have a way of contacting you is a good idea. Remember that +program documentation tends to roam the wild for far longer than you expect +and pick an e-mail address that's likely to last if possible. -sub internal_lrefs { - local($_) = shift; - local $trailing_and = s/and\s+$// ? "and " : ""; - - s{L</([^>]+)>}{$1}g; - my(@items) = split( /(?:,?\s+(?:and\s+)?)/ ); - my $retstr = "the "; - my $i; - for ($i = 0; $i <= $#items; $i++) { - $retstr .= "C<$items[$i]>"; - $retstr .= ", " if @items > 2 && $i != $#items; - $retstr .= " and " if $i+2 == @items; - } - - $retstr .= " entr" . ( @items > 1 ? "ies" : "y" ) - . " elsewhere in this document"; - # terminal space to avoid words running together (pattern used - # strips terminal spaces) - $retstr .= " " if length $trailing_and; - $retstr .= $trailing_and; - - return $retstr; +=item HISTORY -} +Programs derived from other sources sometimes have this, or you might keep a +modification log here. -BEGIN { -%HTML_Escapes = ( - 'amp' => '&', # ampersand - 'lt' => '<', # left chevron, less-than - 'gt' => '>', # right chevron, greater-than - 'quot' => '"', # double quote - - "Aacute" => "A\\*'", # capital A, acute accent - "aacute" => "a\\*'", # small a, acute accent - "Acirc" => "A\\*^", # capital A, circumflex accent - "acirc" => "a\\*^", # small a, circumflex accent - "AElig" => '\*(AE', # capital AE diphthong (ligature) - "aelig" => '\*(ae', # small ae diphthong (ligature) - "Agrave" => "A\\*`", # capital A, grave accent - "agrave" => "A\\*`", # small a, grave accent - "Aring" => 'A\\*o', # capital A, ring - "aring" => 'a\\*o', # small a, ring - "Atilde" => 'A\\*~', # capital A, tilde - "atilde" => 'a\\*~', # small a, tilde - "Auml" => 'A\\*:', # capital A, dieresis or umlaut mark - "auml" => 'a\\*:', # small a, dieresis or umlaut mark - "Ccedil" => 'C\\*,', # capital C, cedilla - "ccedil" => 'c\\*,', # small c, cedilla - "Eacute" => "E\\*'", # capital E, acute accent - "eacute" => "e\\*'", # small e, acute accent - "Ecirc" => "E\\*^", # capital E, circumflex accent - "ecirc" => "e\\*^", # small e, circumflex accent - "Egrave" => "E\\*`", # capital E, grave accent - "egrave" => "e\\*`", # small e, grave accent - "ETH" => '\\*(D-', # capital Eth, Icelandic - "eth" => '\\*(d-', # small eth, Icelandic - "Euml" => "E\\*:", # capital E, dieresis or umlaut mark - "euml" => "e\\*:", # small e, dieresis or umlaut mark - "Iacute" => "I\\*'", # capital I, acute accent - "iacute" => "i\\*'", # small i, acute accent - "Icirc" => "I\\*^", # capital I, circumflex accent - "icirc" => "i\\*^", # small i, circumflex accent - "Igrave" => "I\\*`", # capital I, grave accent - "igrave" => "i\\*`", # small i, grave accent - "Iuml" => "I\\*:", # capital I, dieresis or umlaut mark - "iuml" => "i\\*:", # small i, dieresis or umlaut mark - "Ntilde" => 'N\*~', # capital N, tilde - "ntilde" => 'n\*~', # small n, tilde - "Oacute" => "O\\*'", # capital O, acute accent - "oacute" => "o\\*'", # small o, acute accent - "Ocirc" => "O\\*^", # capital O, circumflex accent - "ocirc" => "o\\*^", # small o, circumflex accent - "Ograve" => "O\\*`", # capital O, grave accent - "ograve" => "o\\*`", # small o, grave accent - "Oslash" => "O\\*/", # capital O, slash - "oslash" => "o\\*/", # small o, slash - "Otilde" => "O\\*~", # capital O, tilde - "otilde" => "o\\*~", # small o, tilde - "Ouml" => "O\\*:", # capital O, dieresis or umlaut mark - "ouml" => "o\\*:", # small o, dieresis or umlaut mark - "szlig" => '\*8', # small sharp s, German (sz ligature) - "THORN" => '\\*(Th', # capital THORN, Icelandic - "thorn" => '\\*(th',, # small thorn, Icelandic - "Uacute" => "U\\*'", # capital U, acute accent - "uacute" => "u\\*'", # small u, acute accent - "Ucirc" => "U\\*^", # capital U, circumflex accent - "ucirc" => "u\\*^", # small u, circumflex accent - "Ugrave" => "U\\*`", # capital U, grave accent - "ugrave" => "u\\*`", # small u, grave accent - "Uuml" => "U\\*:", # capital U, dieresis or umlaut mark - "uuml" => "u\\*:", # small u, dieresis or umlaut mark - "Yacute" => "Y\\*'", # capital Y, acute accent - "yacute" => "y\\*'", # small y, acute accent - "yuml" => "y\\*:", # small y, dieresis or umlaut mark -); -} +=back + +In addition, some systems use CONFORMING TO to note conformance to relevant +standards and MT-LEVEL to note safeness for use in threaded programs or +signal handlers. These headings are primarily useful when documenting parts +of a C library. Documentation of object-oriented libraries or modules may +use CONSTRUCTORS and METHODS sections for detailed documentation of the +parts of the library and save the DESCRIPTION section for an overview; other +large modules may use FUNCTIONS for similar reasons. Some people use +OVERVIEW to summarize the description if it's quite long. Sometimes there's +an additional COPYRIGHT section at the bottom, for licensing terms. +AVAILABILITY is sometimes added, giving the canonical download site for the +software or a URL for updates. + +Section ordering varies, although NAME should I<always> be the first section +(you'll break some man page systems otherwise), and NAME, SYNOPSIS, +DESCRIPTION, and OPTIONS generally always occur first and in that order if +present. In general, SEE ALSO, AUTHOR, and similar material should be left +for last. Some systems also move WARNINGS and NOTES to last. The order +given above should be reasonable for most purposes. + +Finally, as a general note, try not to use an excessive amount of markup. +As documented here and in L<Pod::Man>, you can safely leave Perl variables, +function names, man page references, and the like unadorned by markup and +the POD translators will figure it out for you. This makes it much easier +to later edit the documentation. Note that many existing translators +(including this one currently) will do the wrong thing with e-mail addresses +or URLs when wrapped in LE<lt>E<gt>, so don't do that. + +For additional information that may be more accurate for your specific +system, see either man(5) or man(7) depending on your system manual section +numbering conventions. + +=head1 SEE ALSO + +L<Pod::Man|Pod::Man>, L<Pod::Parser|Pod::Parser>, man(1), nroff(1), +troff(1), man(7) + +The man page documenting the an macro set may be man(5) instead of man(7) on +your system. + +=head1 AUTHOR + +Russ Allbery E<lt>rra@stanford.eduE<gt>, based I<very> heavily on the +original B<pod2man> by Larry Wall and Tom Christiansen. Large portions of +this documentation, particularly the sections on the anatomy of a proper man +page, are taken from the B<pod2man> documentation by Tom. +=cut !NO!SUBS! close OUT or die "Can't close $file: $!"; diff --git a/pod/pod2text.PL b/pod/pod2text.PL index 92b26feceb..79cf8b219b 100644 --- a/pod/pod2text.PL +++ b/pod/pod2text.PL @@ -28,23 +28,22 @@ print "Extracting $file (with variable substitutions)\n"; print OUT <<"!GROK!THIS!"; $Config{startperl} eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' - if \$running_under_some_shell; + if \$running_under_some_shell; !GROK!THIS! # In the following, perl variables are not expanded during extraction. print OUT <<'!NO!SUBS!'; -$ID = q$Id: pod2text,v 0.1 1999/06/13 02:42:18 eagle Exp $; - # pod2text -- Convert POD data to formatted ASCII text. -# Copyright 1999 by Russ Allbery <rra@stanford.edu> +# +# Copyright 1999 by Russ Allbery <rra@stanford.edu> # # This program is free software; you can redistribute it and/or modify it # under the same terms as Perl itself. # -# The driver script for Pod::Text, Pod::Text::Termcap, and -# Pod::Text::Color, invoked by perldoc -t among other things. +# The driver script for Pod::Text, Pod::Text::Termcap, and Pod::Text::Color, +# invoked by perldoc -t among other things. require 5.004; @@ -65,8 +64,8 @@ for (my $i = 0; $i < @ARGV; $i++) { } } -# Parse our options. Use the same names as Pod::Text for simplicity, -# and default to sentence boundaries turned off for compatibility. +# Parse our options. Use the same names as Pod::Text for simplicity, and +# default to sentence boundaries turned off for compatibility. my %options; $options{termcap} = -t STDOUT; $options{sentence} = 0; @@ -79,6 +78,8 @@ pod2usage (1) if $options{help}; my $formatter = 'Pod::Text'; if ($options{color}) { $formatter = 'Pod::Text::Color'; + eval { require Term::ANSIColor }; + if ($@) { die "-c (--color) requires Term::ANSIColor be installed\n" } require Pod::Text::Color; } elsif ($options{termcap}) { $formatter = 'Pod::Text::Termcap'; @@ -104,16 +105,19 @@ pod2text B<-h> =head1 DESCRIPTION -B<pod2text> is a front-end for Pod::Text and its subclasses. It uses -them to generate formatted ASCII text from POD source. It can optionally -use either termcap sequences or ANSI color escape sequences to format the -text. +B<pod2text> is a front-end for Pod::Text and its subclasses. It uses them +to generate formatted ASCII text from POD source. It can optionally use +either termcap sequences or ANSI color escape sequences to format the text. I<input> is the file to read for POD source (the POD can be embedded in code). If I<input> isn't given, it defaults to STDIN. I<output>, if given, is the file to which to write the formatted output. If I<output> isn't given, the formatted output is written to STDOUT. +B<pod2text> defaults to trying to use Pod::Text::Termcap if STDOUT is a tty. +To explicitly say not to attempt termcap escape sequences, use +B<--notermcap>. + =head1 OPTIONS =over 4 @@ -133,17 +137,20 @@ requires that Term::ANSIColor be installed on your system. Set the number of spaces to indent regular text, and the default indentation for C<=over> blocks. Defaults to 4 spaces if this option isn't given. +=item B<-h>, B<--help> + +Print out usage information and exit. + =item B<-l>, B<--loose> Print a blank line after a C<=head1> heading. Normally, no blank line is -printed after C<=head1>, although one is still printed after C<=head2>. -This is the default because it's the expected formatting for manual pages; -if you're formatting arbitrary text documents, using this option is -recommended. +printed after C<=head1>, although one is still printed after C<=head2>, +because this is the expected formatting for manual pages; if you're +formatting arbitrary text documents, using this option is recommended. =item B<-s>, B<--sentence> -Assume each sentence ends in two spaces and try to preserve that spacing. +Assume each sentence ends with two spaces and try to preserve that spacing. Without this option, all consecutive whitespace in non-verbatim paragraphs is compressed into a single space. @@ -154,8 +161,8 @@ sequences for the terminal from termcap, and use that information in formatting the output. Output will be wrapped at two columns less than the width of your terminal device. Using this option requires that your system have a termcap file somewhere where Term::Cap can find it. With this -option, the output of B<pod2text> will contain terminal control sequences for -your current terminal type. +option, the output of B<pod2text> will contain terminal control sequences +for your current terminal type. =item B<-w>, B<--width=>I<width>, B<->I<width> @@ -165,6 +172,28 @@ your terminal device. =back +=head1 DIAGNOSTICS + +If B<pod2text> fails with errors, see L<Pod::Text> and L<Pod::Parser> for +information about what those errors might mean. Internally, it can also +produce the following diagnostics: + +=over 4 + +=item -c (--color) requires Term::ANSIColor be installed + +(F) B<-c> or B<--color> were given, but Term::ANSIColor could not be +loaded. + +=item Unknown option: %s + +(F) An unknown command line option was given. + +=back + +In addition, other L<Getopt::Long|Getopt::Long> error messages may result +from invalid command-line options. + =head1 ENVIRONMENT =over 4 @@ -183,11 +212,6 @@ current terminal device. =back -=head1 DIAGNOSTICS - -If B<pod2text> fails with POD errors, see L<Pod::Text> and -L<Pod::Parser> for information about what those errors might mean. - =head1 SEE ALSO L<Pod::Text|Pod::Text>, L<Pod::Text::Color|Pod::Text::Color>, |