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|
#!/usr/local/bin/perl
use Config;
use File::Basename qw(&basename &dirname);
# List explicitly here the variables you want Configure to
# generate. Metaconfig only looks for shell variables, so you
# have to mention them as if they were shell variables, not
# %Config entries. Thus you write
# $startperl
# to ensure Configure will look for $Config{startperl}.
# This forces PL files to create target in same directory as PL file.
# This is so that make depend always knows where to find PL derivatives.
chdir dirname($0);
$file = basename($0, '.PL');
$file .= '.com' if $^O eq 'VMS';
open OUT,">$file" or die "Can't create $file: $!";
print "Extracting $file (with variable substitutions)\n";
# In this section, perl variables will be expanded during extraction.
# You can use $Config{...} to use Configure variables.
print OUT <<"!GROK!THIS!";
$Config{startperl}
eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
if \$running_under_some_shell;
!GROK!THIS!
# In the following, perl variables are not expanded during extraction.
print OUT <<'!NO!SUBS!';
#
# pod2html - convert pod format to html
# Version 1.15
# usage: pod2html [podfiles]
# Will read the cwd and parse all files with .pod extension
# if no arguments are given on the command line.
#
# Many helps, suggestions, and fixes from the perl5 porters, and all over.
# Bill Middleton - wjm@metronet.com
#
# Please send patches/fixes/features to me
#
#
#
*RS = */;
*ERRNO = *!;
################################################################################
# Invoke with various levels of debugging possible
################################################################################
while ($ARGV[0] =~ /^-d(.*)/) {
shift;
$Debug{ lc($1 || shift) }++;
}
# ck for podnames on command line
while ($ARGV[0]) {
push(@Pods,shift);
}
################################################################################
# CONFIGURE
#
# The beginning of the url for the anchors to the other sections.
# Edit $type to suit. It's configured for relative url's now.
# Other possibilities are:
# $type = '<A HREF="file://localhost/usr/local/htmldir/'; # file url
# $type = '<A HREF="http://www.bozo.com/perl/manual/html/' # server
#
################################################################################
$type = '<A HREF="';
$dir = "."; # location of pods
# look in these pods for things not found within the current pod
# be careful tho, namespace collisions cause stupid links
@inclusions = qw[
perlfunc perlvar perlrun perlop
];
################################################################################
# END CONFIGURE
################################################################################
$A = {}; # The beginning of all things
unless (@Pods) {
opendir(DIR,$dir) or die "Can't opendir $dir: $ERRNO";
@Pods = grep(/\.pod$/,readdir(DIR));
closedir(DIR) or die "Can't closedir $dir: $ERRNO";
}
@Pods or die "aak, expected pods";
# loop twice through the pods, first to learn the links, then to produce html
for $count (0,1) {
print STDERR "Scanning pods...\n" unless $count;
foreach $podfh ( @Pods ) {
($pod = $podfh) =~ s/\.(?:pod|pm)$//;
Debug("files", "opening 2 $podfh" );
print "Creating $pod.html from $podfh\n" if $count;
$RS = "\n="; # grok pods by item (Nonstandard but effecient)
open($podfh,"<".$podfh) || die "can't open $podfh: $ERRNO";
@all = <$podfh>;
close($podfh);
$RS = "\n";
$all[0] =~ s/^=//;
for (@all) { s/=$// }
$Podnames{$pod} = 1;
$in_list = 0;
$html = $pod.".html";
if ($count) { # give us a html and rcs header
open(HTML,">$html") || die "can't create $html: $ERRNO";
print HTML '<!-- $Id$ -->',"\n",'<HTML><HEAD>',"\n";
print HTML "<CENTER>" unless $NO_NS;
print HTML "<TITLE>$pod</TITLE>";
print HTML "</CENTER>" unless $NO_NS;
print HTML "\n</HEAD>\n<BODY>";
}
for ($i = 0; $i <= $#all; $i++) { # decide what to do with each chunk
$all[$i] =~ /^(\w+)\s*(.*)\n?([^\0]*)$/ ;
($cmd, $title, $rest) = ($1,$2,$3);
if ($cmd eq "item") {
if ($count ) { # producing html
do_list("over",$all[$i],\$in_list,\$depth) unless $depth;
do_item($title,$rest,$in_list);
}
else {
# scan item
scan_thing("item",$title,$pod);
}
}
elsif ($cmd =~ /^head([12])/) {
$num = $1;
if ($count) { # producing html
do_hdr($num,$title,$rest,$depth);
}
else {
# header scan
scan_thing($cmd,$title,$pod); # skip head1
}
}
elsif ($cmd =~ /^over/) {
$count and $depth and do_list("over",$all[$i+1],\$in_list,\$depth);
}
elsif ($cmd =~ /^back/) {
if ($count) { # producing html
($depth) or next; # just skip it
do_list("back",$all[$i+1],\$in_list,\$depth);
do_rest($title.$rest);
}
}
elsif ($cmd =~ /^cut/) {
next;
}
elsif ($cmd =~ /^for/) { # experimental pragma html
if ($count) { # producing html
if ($title =~ s/^html//) {
$in_html =1;
do_rest($title.$rest);
}
}
}
elsif ($cmd =~ /^begin/) { # experimental pragma html
if ($count) { # producing html
if ($title =~ s/^html//) {
print HTML $title,"\n",$rest;
}
elsif ($title =~ /^end/) {
next;
}
}
}
elsif ($Debug{"misc"}) {
warn("unrecognized header: $cmd");
}
}
# close open lists without '=back' stmts
if ($count) { # producing html
while ($depth) {
do_list("back",$all[$i+1],\$in_list,\$depth);
}
print HTML "\n</BODY>\n</HTML>\n";
}
}
}
sub do_list{ # setup a list type, depending on some grok logic
my($which,$next_one,$list_type,$depth) = @_;
my($key);
if ($which eq "over") {
unless ($next_one =~ /^item\s+(.*)/) {
warn "Bad list, $1\n" if $Debug{"misc"};
}
$key = $1;
if ($key =~ /^1\.?/) {
$$list_type = "OL";
} elsif ($key =~ /\*\s*$/) {
$$list_type = "UL";
} elsif ($key =~ /\*?\s*\w/) {
$$list_type = "DL";
} else {
warn "unknown list type for item $key" if $Debug{"misc"};
}
print HTML qq{\n};
print HTML $$list_type eq 'DL' ? qq{<DL COMPACT>} : qq{<$$list_type>};
$$depth++;
}
elsif ($which eq "back") {
print HTML qq{\n</$$list_type>\n};
$$depth--;
}
}
sub do_hdr{ # headers
my($num,$title,$rest,$depth) = @_;
print HTML qq{<p><hr>\n} if $num == 1;
process_thing(\$title,"NAME");
print HTML qq{\n<H$num> };
print HTML $title;
print HTML qq{</H$num>\n};
do_rest($rest);
}
sub do_item{ # list items
my($title,$rest,$list_type) = @_;
my $bullet_only = $title eq '*' and $list_type eq 'UL';
process_thing(\$title,"NAME");
if ($list_type eq "DL") {
print HTML qq{\n<DT><STRONG>\n};
print HTML $title;
print HTML qq{\n</STRONG>\n};
print HTML qq{<DD>\n};
}
else {
print HTML qq{\n<LI>};
unless ($bullet_only or $list_type eq "OL") {
print HTML $title,"\n";
}
}
do_rest($rest);
}
sub do_rest{ # the rest of the chunk handled here
my($rest) = @_;
my(@lines,$p,$q,$line,,@paras,$inpre);
@paras = split(/\n\n\n*/,$rest);
for ($p = 0; $p <= $#paras; $p++) {
$paras[$p] =~ s/^\n//mg;
@lines = split(/\n/,$paras[$p]);
if ($in_html) { # handle =for html paragraphs
print HTML $paras[0];
$in_html = 0;
next;
}
elsif ($lines[0] =~ /^\s+\w*\t.*/) { # listing or unordered list
print HTML qq{<UL>};
foreach $line (@lines) {
($line =~ /^\s+(\w*)\t(.*)/) && (($key,$rem) = ($1,$2));
print HTML defined($Podnames{$key})
? "<LI>$type$key.html\">$key<\/A>\t$rem</LI>\n"
: "<LI>$line</LI>\n";
}
print HTML qq{</UL>\n};
}
elsif ($lines[0] =~ /^\s/) { # preformatted code
if ($paras[$p] =~/>>|<</) {
print HTML qq{\n<PRE>\n};
$inpre=1;
}
else { # Still cant beat XMP. Yes, I know
print HTML qq{\n<XMP>\n}; # it's been obsoleted... suggestions?
$inpre = 0;
}
while (defined($paras[$p])) {
@lines = split(/\n/,$paras[$p]);
foreach $q (@lines) { # mind your p's and q's here :-)
if ($paras[$p] =~ />>|<</) {
if ($inpre) {
process_thing(\$q,"HTML");
}
else {
print HTML qq{\n</XMP>\n};
print HTML qq{<PRE>\n};
$inpre=1;
process_thing(\$q,"HTML");
}
}
1 while $q =~ s/\t+/' 'x (length($&) * 8 - length($`) % 8)/e;
print HTML $q,"\n";
}
last if $paras[$p+1] !~ /^\s/;
$p++;
}
print HTML ($inpre==1) ? (qq{\n</PRE>\n}) : (qq{\n</XMP>\n});
}
else { # other text
@lines = split(/\n/,$paras[$p]);
foreach $line (@lines) {
process_thing(\$line,"HTML");
print HTML qq{$line\n};
}
}
print HTML qq{<p>};
}
}
sub process_thing{ # process a chunk, order important
my($thing,$htype) = @_;
pre_escapes($thing);
find_refs($thing,$htype);
post_escapes($thing);
}
sub scan_thing{ # scan a chunk for later references
my($cmd,$title,$pod) = @_;
$_ = $title;
s/\n$//;
s/E<(\d+)>/&#$1;/g;
s/E<(.*?)>/&$1;/g;
# remove any formatting information for the headers
s/[SFCBI]<(.*?)>/$1/g;
# the "don't format me" thing
s/Z<>//g;
if ($cmd eq "item") {
/^\*/ and return; # skip bullets
/^\d+\./ and return; # skip numbers
s/(-[a-z]).*/$1/i;
trim($_);
return if defined $A->{$pod}->{"Items"}->{$_};
$A->{$pod}->{"Items"}->{$_} = gensym($pod, $_);
$A->{$pod}->{"Items"}->{(split(' ',$_))[0]}=$A->{$pod}->{"Items"}->{$_};
Debug("items", "item $_");
if (!/^-\w$/ && /([%\$\@\w]+)/ && $1 ne $_
&& !defined($A->{$pod}->{"Items"}->{$_}) && ($_ ne $1))
{
$A->{$pod}->{"Items"}->{$1} = $A->{$pod}->{"Items"}->{$_};
Debug("items", "item $1 REF TO $_");
}
if ( m{^(tr|y|s|m|q[qwx])/.*[^/]} ) {
my $pf = $1 . '//';
$pf .= "/" if $1 eq "tr" || $1 eq "y" || $1 eq "s";
if ($pf ne $_) {
$A->{$pod}->{"Items"}->{$pf} = $A->{$pod}->{"Items"}->{$_};
Debug("items", "item $pf REF TO $_");
}
}
}
elsif ($cmd =~ /^head[12]/) {
return if defined($A->{$pod}->{"Headers"}->{$_});
$A->{$pod}->{"Headers"}->{$_} = gensym($pod, $_);
Debug("headers", "header $_");
}
else {
warn "unrecognized header: $cmd" if $Debug;
}
}
sub picrefs {
my($char, $bigkey, $lilkey,$htype) = @_;
my($key,$ref,$podname);
for $podname ($pod,@inclusions) {
for $ref ( "Items", "Headers" ) {
if (defined $A->{$podname}->{$ref}->{$bigkey}) {
$value = $A->{$podname}->{$ref}->{$key = $bigkey};
Debug("subs", "bigkey is $bigkey, value is $value\n");
}
elsif (defined $A->{$podname}->{$ref}->{$lilkey}) {
$value = $A->{$podname}->{$ref}->{$key = $lilkey};
return "" if $lilkey eq '';
Debug("subs", "lilkey is $lilkey, value is $value\n");
}
}
if (length($key)) {
($pod2, $num) = $value =~ /^(.*)_(\S+_\d+)$/;
if ($htype eq "NAME") {
return "\n<A NAME=\"".$value."\">\n$bigkey</A>\n"
}
else {
return "\n$type$pod2.html\#".$value."\">$bigkey<\/A>\n";
}
}
}
if ($char =~ /[IF]/) {
return "<EM>$bigkey</EM>";
} elsif ($char =~ /C/) {
return "<CODE>$bigkey</CODE>";
} else {
return "<STRONG>$bigkey</STRONG>";
}
}
sub find_refs {
my($thing,$htype) = @_;
my($orig) = $$thing;
# LREF: a manpage(3f) we don't know about
for ($$thing) {
#s:L<([a-zA-Z][^\s\/]+)(\([^\)]+\))>:the I<$1>$2 manpage:g;
s@(\S+?://\S*[^.,;!?\s])@noremap(qq{<A HREF="$1">$1</A>})@ge;
s,([a-z0-9_.-]+\@([a-z0-9_-]+\.)+([a-z0-9_-]+)),noremap(qq{<A HREF="MAILTO:$1">$1</A>}),gie;
s/L<([^>]*)>/lrefs($1,$htype)/ge;
s/([CIBF])<(\W*?(-?\w*).*?)>/picrefs($1, $2, $3, $htype)/ge;
s/(S)<([^\/]\W*?(-?\w*).*?)>/picrefs($1, $2, $3, $htype)/ge;
s/((\w+)\(\))/picrefs("I", $1, $2,$htype)/ge;
s/([\$\@%](?!&[gl]t)([\w:]+|\W\b))/varrefs($1,$htype)/ge;
}
if ($$thing eq $orig && $htype eq "NAME") {
$$thing = picrefs("I", $$thing, "", $htype);
}
}
sub lrefs {
my($page, $item) = split(m#/#, $_[0], 2);
my($htype) = $_[1];
my($podname);
my($section) = $page =~ /\((.*)\)/;
my $selfref;
if ($page =~ /^[A-Z]/ && $item) {
$selfref++;
$item = "$page/$item";
$page = $pod;
} elsif (!$item && $page =~ /[^a-z\-]/ && $page !~ /^\$.$/) {
$selfref++;
$item = $page;
$page = $pod;
}
$item =~ s/\(\)$//;
if (!$item) {
if (!defined $section && defined $Podnames{$page}) {
return "\n$type$page.html\">\nthe <EM>$page</EM> manpage<\/A>\n";
} else {
(warn "Bizarre entry $page/$item") if $Debug;
return "the <EM>$_[0]</EM> manpage\n";
}
}
if ($item =~ s/"(.*)"/$1/ || ($item =~ /[^\w\/\-]/ && $item !~ /^\$.$/)) {
$text = "<EM>$item</EM>";
$ref = "Headers";
} else {
$text = "<EM>$item</EM>";
$ref = "Items";
}
for $podname ($pod, @inclusions) {
undef $value;
if ($ref eq "Items") {
if (defined($value = $A->{$podname}->{$ref}->{$item})) {
($pod2,$num) = split(/_/,$value,2);
return (($pod eq $pod2) && ($htype eq "NAME"))
? "\n<A NAME=\"".$value."\">\n$text</A>\n"
: "\n$type$pod2.html\#".$value."\">$text<\/A>\n";
}
}
elsif ($ref eq "Headers") {
if (defined($value = $A->{$podname}->{$ref}->{$item})) {
($pod2,$num) = split(/_/,$value,2);
return (($pod eq $pod2) && ($htype eq "NAME"))
? "\n<A NAME=\"".$value."\">\n$text</A>\n"
: "\n$type$pod2.html\#".$value."\">$text<\/A>\n";
}
}
}
warn "No $ref reference for $item (@_)" if $Debug;
return $text;
}
sub varrefs {
my ($var,$htype) = @_;
for $podname ($pod,@inclusions) {
if ($value = $A->{$podname}->{"Items"}->{$var}) {
($pod2,$num) = split(/_/,$value,2);
Debug("vars", "way cool -- var ref on $var");
return (($pod eq $pod2) && ($htype eq "NAME")) # INHERIT $_, $pod
? "\n<A NAME=\"".$value."\">\n$var</A>\n"
: "\n$type$pod2.html\#".$value."\">$var<\/A>\n";
}
}
Debug( "vars", "bummer, $var not a var");
return "<STRONG>$var</STRONG>";
}
sub gensym {
my ($podname, $key) = @_;
$key =~ s/\s.*//;
($key = lc($key)) =~ tr/a-z/_/cs;
my $name = "${podname}_${key}_0";
$name =~ s/__/_/g;
while ($sawsym{$name}++) {
$name =~ s/_?(\d+)$/'_' . ($1 + 1)/e;
}
return $name;
}
sub pre_escapes { # twiddle these, and stay up late :-)
my($thing) = @_;
for ($$thing) {
s/([\200-\377])/noremap("&#".ord($1).";")/ge;
s/"(.*?)"/``$1''/gs;
s/&/noremap("&")/ge;
s/<</noremap("<<")/eg;
s/([^ESIBLCF])</$1\<\;/g;
s/E<(\d+)>/\&#$1\;/g; # embedded numeric special
s/E<([^\/][^<>]*)>/\&$1\;/g; # embedded special
}
}
sub noremap { # adding translator for hibit chars soon
my $hide = $_[0];
$hide =~ tr/\000-\177/\200-\377/;
$hide;
}
sub post_escapes {
my($thing) = @_;
for ($$thing) {
s/([^GM])>>/$1\>\;\>\;/g;
s/([^D][^"MGA])>/$1\>\;/g;
tr/\200-\377/\000-\177/;
}
}
sub Debug {
my $level = shift;
print STDERR @_,"\n" if $Debug{$level};
}
sub dumptable {
my $t = shift;
print STDERR "TABLE DUMP $t\n";
foreach $k (sort keys %$t) {
printf STDERR "%-20s <%s>\n", $t->{$k}, $k;
}
}
sub trim {
for (@_) {
s/^\s+//;
s/\s\n?$//;
}
}
!NO!SUBS!
close OUT or die "Can't close $file: $!";
chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
|
