diff options
author | Andy Dougherty <doughera.lafayette.edu> | 1995-12-21 00:01:16 +0000 |
---|---|---|
committer | Andy Dougherty <doughera.lafayette.edu> | 1995-12-21 00:01:16 +0000 |
commit | cb1a09d0194fed9b905df7b04a4bc031d354609d (patch) | |
tree | f0c890a5a8f5274873421ac573dfc719188e5eec /pod/pod2man.PL | |
parent | 3712091946b37b5feabcc1f630b32639406ad717 (diff) | |
download | perl-cb1a09d0194fed9b905df7b04a4bc031d354609d.tar.gz |
This is patch.2b1g to perl5.002beta1.
cd to your perl source directory, and type
patch -p1 -N < patch.2b1g
This patch is just my packaging of Tom's documentation patches
he released as patch.2b1g.
Patch and enjoy,
Andy Dougherty doughera@lafcol.lafayette.edu
Dept. of Physics
Lafayette College, Easton PA 18042
Diffstat (limited to 'pod/pod2man.PL')
-rw-r--r-- | pod/pod2man.PL | 514 |
1 files changed, 465 insertions, 49 deletions
diff --git a/pod/pod2man.PL b/pod/pod2man.PL index 3a8c5db2a8..3b6c1f8baa 100644 --- a/pod/pod2man.PL +++ b/pod/pod2man.PL @@ -27,42 +27,395 @@ print "Extracting $file (with variable substitutions)\n"; print OUT <<"!GROK!THIS!"; $Config{'startperl'} - eval 'exec perl -S \$0 "\$@"' - if 0; !GROK!THIS! # In the following, perl variables are not expanded during extraction. print OUT <<'!NO!SUBS!'; +eval 'exec perl -S $0 "$@"' + if 0; + +=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> ] +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. + +=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 + +Mandatory section; should be a comma-separated list of programs or +functions documented by this podpage, such as: + + foo, bar - programs to do something + +=item SYNOPSIS + +A short usage summary for programs and functions, which +may someday be deemed mandatory. + +=item DESCRIPTION + +Long drawn out discussion of the program. It's a good idea to break this +up into subsections using the C<=head2> directives, like + + =head2 A Sample Subection + + =head2 Yet Another Sample Subection + +=item OPTIONS + +Some people make this separate from the description. + +=item RETURN VALUE + +What the program or function returns if successful. + +=item ERRORS + +Exceptions, return codes, exit stati, and errno settings. + +=item EXAMPLES + +Give some example uses of the program. + +=item ENVIRONMENT + +Envariables this program might care about. + +=item FILES + +All files used by the program. You should probably use the FE<lt>E<gt> +for these. + +=item SEE ALSO + +Other man pages to check out, like man(1), man(7), makewhatis(8), or catman(8). + +=item NOTES + +Miscellaneous commentary. + +=item CAVEATS + +Things to take special care with; sometimes called WARNINGS. + +=item DIAGNOSTICS + +All possible messages the program can print out--and +what they mean. + +=item BUGS + +Things that are broken or just don't work quite right. + +=item RESTRICTIONS + +Bugs you don't plan to fix :-) + +=item AUTHOR + +Who wrote it (or AUTHORS if multiple). + +=item HISTORY + +Programs derived from other sources sometimes have this, or +you might keep a modification long here. + +=back + +=head1 EXAMPLES + + pod2man program > program.1 + pod2man some_module.pm > /usr/perl/man/man3/some_module.3 + pod2man --section=7 note.pod > note.7 + +=head1 DIAGNOSTICS + +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. + +=over 4 + +=item bad option in paragraph %d of %s: ``%s'' should be [%s]<%s> + +(W) If you start include an option, you should set it off +as bold, italic, or code. + +=item can't open %s: %s + +(F) The input file wasn't available for the given reason. + +=item high bit char in input stream + +(W) You can't use high-bit characters in the input stream, +because the translator uses them for its own nefarious purposes. +Use an HTML entity in angle brackets instead. + +=item Improper man page - no dash in NAME header in paragraph %d of %s + +(W) The NAME header did not have an isolated dash in it. This is +considered important. + +=item Invalid man page - no NAME line in %s + +(F) You did not include a NAME header, which is essential. + +=item roff font should be 1 or 2 chars, not `%s' (F) + +(F) The font specified with the C<--fixed> option was not +a one- or two-digit roff font. + +=item %s is missing required section: %s + +(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. + +=item Unknown escape: %s in %s + +(W) An unknown HTML entity (probably for an 8-bit character) was given via +a C<E<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. + +=item Unmatched =back + +(W) You have a C<=back> without a corresponding C<=over>. + +=item Unrecognized pod directive: %s + +(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>. + + +=back + +=head1 NOTES + +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 one some versions of man(7). +Settting the F register will get you some additional experimental +indexing: + + troff -man -rC1 -rD1 -rF1 perl.1 perldata.1 perlsyn.1 ... + +The indexing merely outputs messages via C<.tm> for each +major page, section, subsection, item, and any C<XE<lt>E<gt>> +directives. + + +=head1 RESTRICTIONS + +You shouldn't use 8-bit characters in the input stream, as these +will be used by the translator. + +=head1 BUGS + +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. + +=head1 AUTHORS + +Original prototype by Larry Wall, but so massively hacked over by +Tom Christiansen such that Larry probably doesn't recognize it anymore. + +=cut $/ = ""; $cutting = 1; -$CFont = 'CW'; -if ($ARGV[0] =~ s/-fc(.*)//) { - shift; - $CFont = $1 || shift; +($version,$patch) = `\PATH=.:..:\$PATH; perl -v` =~ /version (\d\.\d{3}(?: +)(?:\S+)?)(?:.*patchlevel (\d\S*))?/s; +$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]; + return "$mday/$mname/$year"; } +use Getopt::Long; + +$DEF_SECTION = 1; +$DEF_CENTER = "User Contributed Perl Documentation"; +$STD_CENTER = "Perl Programmers Reference Guide"; +$DEF_FIXED = 'CW'; + +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) +EOF +} + +$uok = GetOptions( qw( + section=s + release=s + center=s + date=s + fixed=s + official + help)); + +$DEF_DATE = makedate((stat($ARGV[0]))[9] || time()); + +usage("Usage error!") unless $uok; +usage() if $opt_help; +usage("Need one and only one podpage argument") unless @ARGV == 1; + +$section = $opt_section || ($ARGV[0] =~ /\.pm$/ ? 3 : $DEF_SECTION); +$RP = $opt_release || $DEF_RELEASE; +$center = $opt_center || ($opt_official ? $STD_CENTER : $DEF_CENTER); + +$CFont = $opt_fixed || $DEF_FIXED; + if (length($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 `$CFont_embed'"; -} + die "roff font should be 1 or 2 chars, not `$CFont_embed'"; +} + +$section = $opt_section || $DEF_SECTION; +$date = $opt_date || $DEF_DATE; + +for (qw{NAME DESCRIPTION}) { +# for (qw{NAME DESCRIPTION AUTHOR}) { + $wanna_see{$_}++; +} +$wanna_see{SYNOPSIS}++ if $section =~ /^3/; + -$name = @ARGV ? $ARGV[0] : "something"; +$name = @ARGV ? $ARGV[0] : "<STDIN>"; +$Filename = $name; +$name = uc($name) if $section =~ /^1/; $name =~ s/\..*//; +if ($name ne 'something') { + FCHECK: { + open(F, "< $ARGV[0]") || die "can't open $ARGV[0]: $!"; + while (<F>) { + if (/^=head1\s+NAME\s*$/) { # 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" + } + %namedesc = split /\s+-\s+/; + last FCHECK; + } + } + die "$0: Invalid man page - no NAME line in $ARGV[0]\n"; + } + close F; +} + print <<"END"; .rn '' }` ''' \$RCSfile\$\$Revision\$\$Date\$ -''' +''' ''' \$Log\$ -''' +''' .de Sh .br .if t .Sp @@ -100,6 +453,7 @@ print <<"END"; .tr \\(*W-|\\(bv\\*(Tr .ie n \\{\\ .ds -- \\(*W- +.ds PI pi .if (\\n(.H=4u)&(1m=24u) .ds -- \\(*W\\h'-12u'\\(*W\\h'-12u'-\\" diablo 10 pitch .if (\\n(.H=4u)&(1m=20u) .ds -- \\(*W\\h'-12u'\\(*W\\h'-8u'-\\" diablo 12 pitch .ds L" "" @@ -114,15 +468,42 @@ print <<"END"; .ds R" '' .ds L' ` .ds R' ' -.if t .ds PI \\(*p -.if n .ds PI PI +.ds PI \\(*p 'br\\} -.TH \U$name\E 1 "\\*(RP" +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 $section "$RP" "$date" "$center" +.IX Title "$name $section" .UC END +while (($name, $desc) = each %namedesc) { + for ($name, $desc) { s/^\s+//; s/\s+$//; } + print qq(.IX Name "$name - $desc"\n); +} + print <<'END'; -.if n .hy 0 +.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 @@ -163,8 +544,8 @@ print <<'END'; . ds ~ ~ . ds ? ? . ds ! ! -. ds / -. ds q +. ds / +. ds q .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" @@ -257,7 +638,7 @@ while (<>) { # trofficate backslashes; must do it before what happens below s/\\/noremap('\\e')/ge; - # first hide the escapes in case we need to + # first hide the escapes in case we need to # intuit something and get it wrong due to fmting s/([A-Z]<[^<>]*>)/noremap($1)/ge; @@ -291,14 +672,16 @@ while (<>) { [^\051]*? \) ) - }x && $` !~ /([LCI]<[^<>]*|-)$/ && !/^=\w/) + }x && $` !~ /([LCI]<[^<>]*|-)$/ && !/^=\w/) { - warn "``$1'' should be a [LCI]<$1> ref"; - } + warn "$0: bad option in paragraph $. of $ARGV: ``$1'' should be [LCI]<$1>\n"; + $oops++; + } while (/(-[a-zA-Z])\b/g && $` !~ /[\w\-]$/) { - warn "``$1'' should be [CB]<$1> ref"; - } + 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 @@ -307,7 +690,7 @@ while (<>) { # trofficate backslashes s/\\/noremap('\\e')/ge; - } + } # need to hide E<> first; they're processed in clear_noremap s/(E<[^<>]+>)/noremap($1)/ge; @@ -325,7 +708,7 @@ while (<>) { # no break -- usually we want C<> for this s/S<([^<>]*)>/nobreak($1)/eg; - # LREF: a manpage(3f) + # LREF: a manpage(3f) s:L<([a-zA-Z][^\s\/]+)(\([^\)]+\))?>:the I<$1>$2 manpage:g; # LREF: an =item on another manpage @@ -359,7 +742,7 @@ while (<>) { s{ L< (?: - ([a-zA-Z]\S+?) / + ([a-zA-Z]\S+?) / )? "?(.*?)"? > @@ -368,7 +751,7 @@ while (<>) { $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>" - } + } }gex; s/Z<>/\\&/g; @@ -395,14 +778,18 @@ while (<>) { $cutting = 1; } elsif ($Cmd eq 'head1') { - print qq{.SH "$_"\n} + s/\s+$//; + delete $wanna_see{$_} if exists $wanna_see{$_}; + print qq{.SH "$_"\n}; + print qq{.IX Header "$_"\n}; } elsif ($Cmd eq 'head2') { - print qq{.Sh "$_"\n} + print qq{.Sh "$_"\n}; + print qq{.IX Subsection "$_"\n}; } elsif ($Cmd eq 'over') { push(@indent,$indent); - $indent = $_ + 0; + $indent += ($_ + 0) || 5; } elsif ($Cmd eq 'back') { $indent = pop(@indent); @@ -412,9 +799,13 @@ while (<>) { elsif ($Cmd eq 'item') { s/^\*( |$)/\\(bu$1/g; print STDOUT qq{.Ip "$_" $indent\n}; + print qq{.IX Item "$_"\n}; } + elsif ($Cmd eq 'pod') { + # this is just a comment + } else { - warn "Unrecognized directive: $Cmd\n"; + warn "Unrecognized pod directive: $Cmd\n"; } } else { @@ -433,6 +824,17 @@ print <<"END"; .rn }` '' END +if (%wanna_see) { + @missing = keys %wanna_see; + warn "$0: $Filename is missing required section" + . (@missing > 1 && "s") + . ": @missing\n"; + $oops++; +} + +exit; +#exit ($oops != 0); + ######################################################################### sub nobreak { @@ -443,6 +845,8 @@ sub nobreak { sub escapes { + s/X<(.*?)>/mkindex($1)/ge; + # translate the minus in foo-bar into foo\-bar for roff s/([^0-9a-z-])-([^-])/$1\\-$2/g; @@ -459,7 +863,7 @@ sub escapes { #s/(?!")(?:.)--(?!")(?:.)/\\*(--/g; #s/(?:(?!")(?:.)--(?:"))|(?:(?:")--(?!")(?:.))/\\*(--/g; - + # make sure that func() keeps a bit a space tween the parens ### s/\b\(\)/\\|()/g; @@ -471,7 +875,7 @@ sub escapes { # make double underbars have a little tiny space between them s/__/_\\|_/g; - # PI goes to \*(-- (defined above) + # 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 @@ -494,7 +898,7 @@ sub escapes { ( \b[A-Z]{2,}[\/A-Z+:\-\d_\$]*\b ) - } { + } { $1 . noremap( '\\s-1' . $2 . '\\s0' ) }egmox; @@ -510,9 +914,9 @@ sub ccvt { # what about $" ? } else { noremap(qq{${CFont_embed}$_\\fR}); - } + } noremap(qq{.CQ "$_" \n\\&}); -} +} sub makespace { if ($indent) { @@ -523,22 +927,33 @@ sub makespace { } } +sub mkindex { + my ($entry) = @_; + my @entries = split m:\s*/\s*:, $entry; + print ".IX Xref "; + for $entry (@entries) { + print qq("$entry" ); + } + print "\n"; + return ''; +} + sub font { local($font) = shift; return '\\f' . noremap($font); -} +} sub noremap { local($thing_to_hide) = shift; $thing_to_hide =~ tr/\000-\177/\200-\377/; return $thing_to_hide; -} +} sub init_noremap { if ( /[\200-\377]/ ) { - warn "hit bit char in input stream"; - } -} + warn "high bit char in input stream"; + } +} sub clear_noremap { my $ready_to_print = $_[0]; @@ -555,17 +970,17 @@ sub clear_noremap { E< ( [A-Za-z]+ ) > - } { + } { do { exists $HTML_Escapes{$1} ? do { $HTML_Escapes{$1} } : do { warn "Unknown escape: $& in $_"; "E<$1>"; - } - } + } + } }egx if $ready_to_print; -} +} sub internal_lrefs { local($_) = shift; @@ -578,14 +993,14 @@ sub internal_lrefs { $retstr .= "C<$items[$i]>"; $retstr .= ", " if @items > 2 && $i != $#items; $retstr .= " and " if $i+2 == @items; - } + } $retstr .= " entr" . ( @items > 1 ? "ies" : "y" ) . " elsewhere in this document"; return $retstr; -} +} BEGIN { %HTML_Escapes = ( @@ -658,6 +1073,7 @@ BEGIN { "yuml" => "y\\*:", # small y, dieresis or umlaut mark ); } + !NO!SUBS! close OUT or die "Can't close $file: $!"; |