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;
125 $docs .= "NOTE: this function is experimental and may change or be
126 removed without notice.\n\n" if $flags =~ /x/;
127 $docs .= "NOTE: the perl_ form of this function is deprecated.\n\n"
130 print $fh "=item $name\nX<$name>\n$docs";
132 if ($flags =~ /U/) { # no usage
134 } elsif ($flags =~ /s/) { # semicolon ("dTHR;")
135 print $fh "\t\t$name;\n\n";
136 } elsif ($flags =~ /n/) { # no args
137 print $fh "\t$ret\t$name\n\n";
138 } else { # full usage
139 print $fh "\t$ret\t$name";
140 print $fh "(" . join(", ", @args) . ")";
143 print $fh "=for hackers\nFound in file $file\n\n";
147 # glob() picks up docs from extra .c or .h files that may be in unclean
151 open FH, "MANIFEST" or die "Can't open MANIFEST: $!";
155 for $file (($MANIFEST =~ /^(\S+\.c)\t/gm), ($MANIFEST =~ /^(\S+\.h)\t/gm)) {
156 open F, "< $file" or die "Cannot open $file for docs: $!\n";
157 $curheader = "Functions in file $file\n";
159 close F or die "Error closing $file: $!\n";
162 safer_unlink "pod/perlapi.pod";
163 open (DOC, ">pod/perlapi.pod") or
164 die "Can't create pod/perlapi.pod: $!\n";
167 walk_table { # load documented functions into approriate hash
169 my($flags, $retval, $func, @args) = @_;
170 return "" unless $flags =~ /d/;
171 $func =~ s/\t//g; $flags =~ s/p//; # clean up fields from embed.pl
173 my $docref = delete $docfuncs{$func};
174 if ($docref and @$docref) {
176 $docref->[0].="x" if $flags =~ /M/;
177 $apidocs{$docref->[4]}{$func} =
178 [$docref->[0] . 'A', $docref->[1], $retval,
179 $docref->[3], @args];
181 $gutsdocs{$docref->[4]}{$func} =
182 [$docref->[0], $docref->[1], $retval, $docref->[3], @args];
186 warn "no docs for $func\n" unless $docref and @$docref;
192 for (sort keys %docfuncs) {
193 # Have you used a full for apidoc or just a func name?
194 # Have you used Ap instead of Am in the for apidoc?
195 warn "Unable to place $_!\n";
201 perlapi - autogenerated documentation for the perl public API
204 X<Perl API> X<API> X<api>
206 This file contains the documentation of the perl public API generated by
207 embed.pl, specifically a listing of functions, macros, flags, and variables
208 that may be used by extension writers. The interfaces of any functions that
209 are not listed here are subject to change without notice. For this reason,
210 blindly using functions listed in proto.h is to be avoided when writing
213 Note that all Perl API global variables must be referenced with the C<PL_>
214 prefix. Some macros are provided for compatibility with the older,
215 unadorned names, but this support may be disabled in a future release.
217 The listing is alphabetical, case insensitive.
222 # case insensitive sort, with fallback for determinacy
223 for $key (sort { uc($a) cmp uc($b) || $a cmp $b } keys %apidocs) {
224 my $section = $apidocs{$key};
225 print DOC "\n=head1 $key\n\n=over 8\n\n";
226 # Again, fallback for determinacy
227 for my $key (sort { uc($a) cmp uc($b) || $a cmp $b } keys %$section) {
228 docout(\*DOC, $key, $section->{$key});
230 print DOC "\n=back\n";
237 Until May 1997, this document was maintained by Jeff Okamoto
238 <okamoto@corp.hp.com>. It is now maintained as part of Perl itself.
240 With lots of help and suggestions from Dean Roehrich, Malcolm Beattie,
241 Andreas Koenig, Paul Hudson, Ilya Zakharevich, Paul Marquess, Neil
242 Bowers, Matthew Green, Tim Bunce, Spider Boardman, Ulrich Pfeifer,
243 Stephen McCamant, and Gurusamy Sarathy.
245 API Listing originally by Dean Roehrich <roehrich@cray.com>.
247 Updated to be autogenerated from comments in the source by Benjamin Stuhl.
251 perlguts(1), perlxs(1), perlxstut(1), perlintern(1)
256 close(DOC) or die "Error closing pod/perlapi.pod: $!";
258 safer_unlink "pod/perlintern.pod";
259 open(GUTS, ">pod/perlintern.pod") or
260 die "Unable to create pod/perlintern.pod: $!\n";
265 perlintern - autogenerated documentation of purely B<internal>
269 X<internal Perl functions> X<interpreter functions>
271 This file is the autogenerated documentation of functions in the
272 Perl interpreter that are documented using Perl's internal documentation
273 format but are not marked as part of the Perl API. In other words,
274 B<they are not for use in extensions>!
278 for $key (sort { uc($a) cmp uc($b); } keys %gutsdocs) {
279 my $section = $gutsdocs{$key};
280 print GUTS "\n=head1 $key\n\n=over 8\n\n";
281 for my $key (sort { uc($a) cmp uc($b); } keys %$section) {
282 docout(\*GUTS, $key, $section->{$key});
284 print GUTS "\n=back\n";
291 The autodocumentation system was originally added to the Perl core by
292 Benjamin Stuhl. Documentation is by whoever was kind enough to
293 document their functions.
297 perlguts(1), perlapi(1)
301 close GUTS or die "Error closing pod/perlintern.pod: $!";