3 require 5.003; # keep this compatible, an old perl is all we may have before
8 require 'regen_lib.pl';
13 # See database of global and static function prototypes in embed.fnc
14 # This is used to generate prototype headers under various configurations,
15 # export symbols lists for different platforms, and macros to provide an
16 # implicit interpreter context argument.
19 open IN, "embed.fnc" or die $!;
21 # walk table providing an array of components in each line to
22 # subroutine, printing the result
25 my $filename = shift || '-';
30 if (ref $filename) { # filehandle
34 safer_unlink $filename;
35 open F, ">$filename" or die "Can't open $filename: $!";
39 print $F $leader if $leader;
40 seek IN, 0, 0; # so we may restart
54 @args = split /\s*\|\s*/, $_;
56 s/\b(NN|NULLOK)\b\s+//g for @args;
57 print $F $function->(@args);
59 print $F $trailer if $trailer;
60 unless (ref $filename) {
61 close $F or die "Error closing $filename: $!";
69 my $curheader = "Unknown section";
71 sub autodoc ($$) { # parse a file and extract documentation info
75 while (defined($in = <$fh>)) {
76 if ($in=~ /^=head1 (.*)/) {
81 if ($in =~ /^=for\s+apidoc\s+(.*?)\s*\n/) {
83 $proto = "||$proto" unless $proto =~ /\|/;
84 my($flags, $ret, $name, @args) = split /\|/, $proto;
87 while (defined($doc = <$fh>)) {
89 last DOC if $doc =~ /^=\w+/;
90 if ($doc =~ m:^\*/$:) {
91 warn "=cut missing? $file:$line:$doc";;
96 $docs = "\n$docs" if $docs and $docs !~ /^\n/;
99 $apidocs{$curheader}{$name} = [$flags, $docs, $ret, $file, @args];
102 $gutsdocs{$curheader}{$name} = [$flags, $docs, $ret, $file, @args];
106 $docfuncs{$name} = [$flags, $docs, $ret, $file, $curheader, @args];
109 if ($doc =~ /^=(?:for|head)/) {
114 warn "$file:$line:$in";
120 sub docout ($$$) { # output the docs for one function
121 my($fh, $name, $docref) = @_;
122 my($flags, $docs, $ret, $file, @args) = @$docref;
124 $docs .= "NOTE: this function is experimental and may change or be
125 removed without notice.\n\n" if $flags =~ /x/;
126 $docs .= "NOTE: the perl_ form of this function is deprecated.\n\n"
129 print $fh "=item $name\n$docs";
131 if ($flags =~ /U/) { # no usage
133 } elsif ($flags =~ /s/) { # semicolon ("dTHR;")
134 print $fh "\t\t$name;\n\n";
135 } elsif ($flags =~ /n/) { # no args
136 print $fh "\t$ret\t$name\n\n";
137 } else { # full usage
138 print $fh "\t$ret\t$name";
139 print $fh "(" . join(", ", @args) . ")";
142 print $fh "=for hackers\nFound in file $file\n\n";
146 # glob() picks up docs from extra .c or .h files that may be in unclean
150 open FH, "MANIFEST" or die "Can't open MANIFEST: $!";
154 for $file (($MANIFEST =~ /^(\S+\.c)\t/gm), ($MANIFEST =~ /^(\S+\.h)\t/gm)) {
155 open F, "< $file" or die "Cannot open $file for docs: $!\n";
156 $curheader = "Functions in file $file\n";
158 close F or die "Error closing $file: $!\n";
161 safer_unlink "pod/perlapi.pod";
162 open (DOC, ">pod/perlapi.pod") or
163 die "Can't create pod/perlapi.pod: $!\n";
166 walk_table { # load documented functions into approriate hash
168 my($flags, $retval, $func, @args) = @_;
169 return "" unless $flags =~ /d/;
170 $func =~ s/\t//g; $flags =~ s/p//; # clean up fields from embed.pl
172 my $docref = delete $docfuncs{$func};
173 if ($docref and @$docref) {
175 $docref->[0].="x" if $flags =~ /M/;
176 $apidocs{$docref->[4]}{$func} =
177 [$docref->[0] . 'A', $docref->[1], $retval,
178 $docref->[3], @args];
180 $gutsdocs{$docref->[4]}{$func} =
181 [$docref->[0], $docref->[1], $retval, $docref->[3], @args];
185 warn "no docs for $func\n" unless $docref and @$docref;
191 for (sort keys %docfuncs) {
192 # Have you used a full for apidoc or just a func name?
193 # Have you used Ap instead of Am in the for apidoc?
194 warn "Unable to place $_!\n";
200 perlapi - autogenerated documentation for the perl public API
204 This file contains the documentation of the perl public API generated by
205 embed.pl, specifically a listing of functions, macros, flags, and variables
206 that may be used by extension writers. The interfaces of any functions that
207 are not listed here are subject to change without notice. For this reason,
208 blindly using functions listed in proto.h is to be avoided when writing
211 Note that all Perl API global variables must be referenced with the C<PL_>
212 prefix. Some macros are provided for compatibility with the older,
213 unadorned names, but this support may be disabled in a future release.
215 The listing is alphabetical, case insensitive.
220 # case insensitive sort, with fallback for determinacy
221 for $key (sort { uc($a) cmp uc($b) || $a cmp $b } keys %apidocs) {
222 my $section = $apidocs{$key};
223 print DOC "\n=head1 $key\n\n=over 8\n\n";
224 # Again, fallback for determinacy
225 for my $key (sort { uc($a) cmp uc($b) || $a cmp $b } keys %$section) {
226 docout(\*DOC, $key, $section->{$key});
228 print DOC "\n=back\n";
235 Until May 1997, this document was maintained by Jeff Okamoto
236 <okamoto@corp.hp.com>. It is now maintained as part of Perl itself.
238 With lots of help and suggestions from Dean Roehrich, Malcolm Beattie,
239 Andreas Koenig, Paul Hudson, Ilya Zakharevich, Paul Marquess, Neil
240 Bowers, Matthew Green, Tim Bunce, Spider Boardman, Ulrich Pfeifer,
241 Stephen McCamant, and Gurusamy Sarathy.
243 API Listing originally by Dean Roehrich <roehrich@cray.com>.
245 Updated to be autogenerated from comments in the source by Benjamin Stuhl.
249 perlguts(1), perlxs(1), perlxstut(1), perlintern(1)
254 close(DOC) or die "Error closing pod/perlapi.pod: $!";
256 safer_unlink "pod/perlintern.pod";
257 open(GUTS, ">pod/perlintern.pod") or
258 die "Unable to create pod/perlintern.pod: $!\n";
263 perlintern - autogenerated documentation of purely B<internal>
268 This file is the autogenerated documentation of functions in the
269 Perl interpreter that are documented using Perl's internal documentation
270 format but are not marked as part of the Perl API. In other words,
271 B<they are not for use in extensions>!
275 for $key (sort { uc($a) cmp uc($b); } keys %gutsdocs) {
276 my $section = $gutsdocs{$key};
277 print GUTS "\n=head1 $key\n\n=over 8\n\n";
278 for my $key (sort { uc($a) cmp uc($b); } keys %$section) {
279 docout(\*GUTS, $key, $section->{$key});
281 print GUTS "\n=back\n";
288 The autodocumentation system was originally added to the Perl core by
289 Benjamin Stuhl. Documentation is by whoever was kind enough to
290 document their functions.
294 perlguts(1), perlapi(1)
298 close GUTS or die "Error closing pod/perlintern.pod: $!";