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94bdecf9 |
1 | #!/usr/bin/perl -w |
2 | |
3 | require 5.003; # keep this compatible, an old perl is all we may have before |
4 | # we build the new one |
5 | |
a64c954a |
6 | BEGIN { push @INC, 'lib' } # glob() below requires File::Glob |
7 | |
8 | |
94bdecf9 |
9 | # |
10 | # See database of global and static function prototypes at the __END__. |
11 | # This is used to generate prototype headers under various configurations, |
12 | # export symbols lists for different platforms, and macros to provide an |
13 | # implicit interpreter context argument. |
14 | # |
15 | |
16 | open IN, "embed.fnc" or die $!; |
17 | |
18 | # walk table providing an array of components in each line to |
19 | # subroutine, printing the result |
20 | sub walk_table (&@) { |
21 | my $function = shift; |
22 | my $filename = shift || '-'; |
23 | my $leader = shift; |
24 | my $trailer = shift; |
25 | my $F; |
26 | local *F; |
27 | if (ref $filename) { # filehandle |
28 | $F = $filename; |
29 | } |
30 | else { |
31 | open F, ">$filename" or die "Can't open $filename: $!"; |
32 | $F = \*F; |
33 | } |
34 | print $F $leader if $leader; |
35 | seek IN, 0, 0; # so we may restart |
36 | while (<IN>) { |
37 | chomp; |
38 | next if /^:/; |
39 | while (s|\\$||) { |
40 | $_ .= <IN>; |
41 | chomp; |
42 | } |
43 | my @args; |
44 | if (/^\s*(#|$)/) { |
45 | @args = $_; |
46 | } |
47 | else { |
48 | @args = split /\s*\|\s*/, $_; |
49 | } |
50 | print $F $function->(@args); |
51 | } |
52 | print $F $trailer if $trailer; |
53 | close $F unless ref $filename; |
54 | } |
55 | |
56 | my %apidocs; |
57 | my %gutsdocs; |
58 | my %docfuncs; |
59 | |
60 | my $curheader = "Unknown section"; |
61 | |
62 | sub autodoc ($$) { # parse a file and extract documentation info |
63 | my($fh,$file) = @_; |
64 | my($in, $doc, $line); |
65 | FUNC: |
66 | while (defined($in = <$fh>)) { |
67 | if ($in=~ /^=head1 (.*)/) { |
68 | $curheader = $1; |
69 | next FUNC; |
70 | } |
71 | $line++; |
72 | if ($in =~ /^=for\s+apidoc\s+(.*)\n/) { |
73 | my $proto = $1; |
74 | $proto = "||$proto" unless $proto =~ /\|/; |
75 | my($flags, $ret, $name, @args) = split /\|/, $proto; |
76 | my $docs = ""; |
77 | DOC: |
78 | while (defined($doc = <$fh>)) { |
79 | if ($doc =~ /^=head1 (.*)/) { |
80 | $curheader = $1; |
81 | next DOC; |
82 | } |
83 | $line++; |
84 | last DOC if $doc =~ /^=\w+/; |
85 | if ($doc =~ m:^\*/$:) { |
86 | warn "=cut missing? $file:$line:$doc";; |
87 | last DOC; |
88 | } |
89 | $docs .= $doc; |
90 | } |
91 | $docs = "\n$docs" if $docs and $docs !~ /^\n/; |
92 | if ($flags =~ /m/) { |
93 | if ($flags =~ /A/) { |
94 | $apidocs{$curheader}{$name} = [$flags, $docs, $ret, $file, @args]; |
95 | } |
96 | else { |
97 | $gutsdocs{$curheader}{$name} = [$flags, $docs, $ret, $file, @args]; |
98 | } |
99 | } |
100 | else { |
101 | $docfuncs{$name} = [$flags, $docs, $ret, $file, $curheader, @args]; |
102 | } |
103 | if (defined $doc) { |
104 | if ($doc =~ /^=for/) { |
105 | $in = $doc; |
106 | redo FUNC; |
107 | } |
108 | } else { |
109 | warn "$file:$line:$in"; |
110 | } |
111 | } |
112 | } |
113 | } |
114 | |
115 | sub docout ($$$) { # output the docs for one function |
116 | my($fh, $name, $docref) = @_; |
117 | my($flags, $docs, $ret, $file, @args) = @$docref; |
118 | |
119 | $docs .= "NOTE: this function is experimental and may change or be |
120 | removed without notice.\n\n" if $flags =~ /x/; |
121 | $docs .= "NOTE: the perl_ form of this function is deprecated.\n\n" |
122 | if $flags =~ /p/; |
123 | |
124 | print $fh "=item $name\n$docs"; |
125 | |
126 | if ($flags =~ /U/) { # no usage |
127 | # nothing |
128 | } elsif ($flags =~ /s/) { # semicolon ("dTHR;") |
129 | print $fh "\t\t$name;\n\n"; |
130 | } elsif ($flags =~ /n/) { # no args |
131 | print $fh "\t$ret\t$name\n\n"; |
132 | } else { # full usage |
133 | print $fh "\t$ret\t$name"; |
134 | print $fh "(" . join(", ", @args) . ")"; |
135 | print $fh "\n\n"; |
136 | } |
137 | print $fh "=for hackers\nFound in file $file\n\n"; |
138 | } |
139 | |
140 | my $file; |
141 | for $file (glob('*.c'), glob('*.h')) { |
142 | open F, "< $file" or die "Cannot open $file for docs: $!\n"; |
143 | $curheader = "Functions in file $file\n"; |
144 | autodoc(\*F,$file); |
145 | close F or die "Error closing $file: $!\n"; |
146 | } |
147 | |
148 | unlink "pod/perlapi.pod"; |
149 | open (DOC, ">pod/perlapi.pod") or |
150 | die "Can't create pod/perlapi.pod: $!\n"; |
151 | |
152 | walk_table { # load documented functions into approriate hash |
153 | if (@_ > 1) { |
154 | my($flags, $retval, $func, @args) = @_; |
155 | return "" unless $flags =~ /d/; |
156 | $func =~ s/\t//g; $flags =~ s/p//; # clean up fields from embed.pl |
157 | $retval =~ s/\t//; |
158 | if ($flags =~ /A/) { |
159 | my $docref = delete $docfuncs{$func}; |
160 | warn "no docs for $func\n" unless $docref and @$docref; |
161 | $docref->[0].="x" if $flags =~ /M/; |
162 | $apidocs{$docref->[4]}{$func} = |
163 | [$docref->[0] . 'A', $docref->[1], $retval, $docref->[3], @args]; |
164 | } else { |
165 | my $docref = delete $docfuncs{$func}; |
166 | $gutsdocs{$docref->[4]}{$func} = |
167 | [$docref->[0], $docref->[1], $retval, $docref->[3], @args]; |
168 | } |
169 | } |
170 | return ""; |
171 | } \*DOC; |
172 | |
173 | for (sort keys %docfuncs) { |
174 | # Have you used a full for apidoc or just a func name? |
175 | # Have you used Ap instead of Am in the for apidoc? |
176 | warn "Unable to place $_!\n"; |
177 | } |
178 | |
179 | print DOC <<'_EOB_'; |
180 | =head1 NAME |
181 | |
182 | perlapi - autogenerated documentation for the perl public API |
183 | |
184 | =head1 DESCRIPTION |
185 | |
186 | This file contains the documentation of the perl public API generated by |
187 | embed.pl, specifically a listing of functions, macros, flags, and variables |
188 | that may be used by extension writers. The interfaces of any functions that |
189 | are not listed here are subject to change without notice. For this reason, |
190 | blindly using functions listed in proto.h is to be avoided when writing |
191 | extensions. |
192 | |
193 | Note that all Perl API global variables must be referenced with the C<PL_> |
194 | prefix. Some macros are provided for compatibility with the older, |
195 | unadorned names, but this support may be disabled in a future release. |
196 | |
197 | The listing is alphabetical, case insensitive. |
198 | |
199 | _EOB_ |
200 | |
201 | my $key; |
202 | for $key (sort { uc($a) cmp uc($b); } keys %apidocs) { # case insensitive sort |
203 | my $section = $apidocs{$key}; |
204 | print DOC "\n=head1 $key\n\n=over 8\n\n"; |
205 | for my $key (sort { uc($a) cmp uc($b); } keys %$section) { |
206 | docout(\*DOC, $key, $section->{$key}); |
207 | } |
208 | print DOC "\n=back\n"; |
209 | } |
210 | |
211 | print DOC <<'_EOE_'; |
212 | |
213 | =head1 AUTHORS |
214 | |
215 | Until May 1997, this document was maintained by Jeff Okamoto |
216 | <okamoto@corp.hp.com>. It is now maintained as part of Perl itself. |
217 | |
218 | With lots of help and suggestions from Dean Roehrich, Malcolm Beattie, |
219 | Andreas Koenig, Paul Hudson, Ilya Zakharevich, Paul Marquess, Neil |
220 | Bowers, Matthew Green, Tim Bunce, Spider Boardman, Ulrich Pfeifer, |
221 | Stephen McCamant, and Gurusamy Sarathy. |
222 | |
223 | API Listing originally by Dean Roehrich <roehrich@cray.com>. |
224 | |
225 | Updated to be autogenerated from comments in the source by Benjamin Stuhl. |
226 | |
227 | =head1 SEE ALSO |
228 | |
229 | perlguts(1), perlxs(1), perlxstut(1), perlintern(1) |
230 | |
231 | _EOE_ |
232 | |
233 | |
234 | close(DOC); |
235 | |
236 | open(GUTS, ">pod/perlintern.pod") or |
237 | die "Unable to create pod/perlintern.pod: $!\n"; |
238 | print GUTS <<'END'; |
239 | =head1 NAME |
240 | |
241 | perlintern - autogenerated documentation of purely B<internal> |
242 | Perl functions |
243 | |
244 | =head1 DESCRIPTION |
245 | |
246 | This file is the autogenerated documentation of functions in the |
247 | Perl interpreter that are documented using Perl's internal documentation |
248 | format but are not marked as part of the Perl API. In other words, |
249 | B<they are not for use in extensions>! |
250 | |
251 | END |
252 | |
253 | for $key (sort { uc($a) cmp uc($b); } keys %gutsdocs) { |
254 | my $section = $gutsdocs{$key}; |
255 | print GUTS "\n=head1 $key\n\n=over 8\n\n"; |
256 | for my $key (sort { uc($a) cmp uc($b); } keys %$section) { |
257 | docout(\*GUTS, $key, $section->{$key}); |
258 | } |
259 | print GUTS "\n=back\n"; |
260 | } |
261 | |
262 | print GUTS <<'END'; |
263 | |
264 | =head1 AUTHORS |
265 | |
266 | The autodocumentation system was originally added to the Perl core by |
267 | Benjamin Stuhl. Documentation is by whoever was kind enough to |
268 | document their functions. |
269 | |
270 | =head1 SEE ALSO |
271 | |
272 | perlguts(1), perlapi(1) |
273 | |
274 | END |
275 | |
276 | close GUTS; |
277 | |