Commit | Line | Data |
---|---|---|
94bdecf9 | 1 | #!/usr/bin/perl -w |
00d68f0d KW |
2 | |
3 | use Text::Tabs; | |
a9a7c81e | 4 | # |
6294c161 DM |
5 | # Unconditionally regenerate: |
6 | # | |
7 | # pod/perlintern.pod | |
8 | # pod/perlapi.pod | |
9 | # | |
10 | # from information stored in | |
11 | # | |
12 | # embed.fnc | |
9b983db7 | 13 | # plus all the core .c, .h, and .pod files listed in MANIFEST |
6294c161 DM |
14 | # |
15 | # Has an optional arg, which is the directory to chdir to before reading | |
9b983db7 | 16 | # MANIFEST and the files |
6294c161 | 17 | # |
52a9d53b | 18 | # This script is invoked as part of 'make all' |
151c3fe5 | 19 | # |
9b983db7 KW |
20 | # The generated pod consists of sections of related elements, functions, |
21 | # macros, and variables. The keys of %valid_sections give the current legal | |
22 | # ones. Just add a new key to add a section. | |
23 | # | |
24 | # Throughout the files read by this script are lines like | |
25 | # | |
26 | # =for apidoc_section Section Name | |
3f620621 | 27 | # =for apidoc_section $section_name_variable |
9b983db7 KW |
28 | # |
29 | # "Section Name" (after having been stripped of leading space) must be one of | |
3f620621 KW |
30 | # the legal section names, or an error is thrown. $section_name_variable must |
31 | # be one of the legal section name variables defined below; these expand to | |
32 | # legal section names. This form is used so that minor wording changes in | |
33 | # these titles can be confied to this file. All the names of the variables | |
34 | # end in '_scn'; this suffix is optional in the apidoc_section lines. | |
35 | # | |
36 | # All API elements defined between this line and the next 'apidoc_section' | |
37 | # line will go into the section "Section Name" (or $section_name_variable), | |
38 | # sorted by dictionary order within it. perlintern and perlapi are parallel | |
39 | # documents, each potentially with a section "Section Name". Each element is | |
40 | # marked as to which document it goes into. If there are none for a | |
41 | # particular section in perlapi, that section is omitted. | |
9b983db7 KW |
42 | # |
43 | # Also, in .[ch] files, there may be | |
44 | # | |
45 | # =head1 Section Name | |
46 | # | |
47 | # lines in comments. These are also used by this program to switch to section | |
48 | # "Section Name". The difference is that if there are any lines after the | |
49 | # =head1, inside the same comment, and before any =for apidoc-ish lines, they | |
50 | # are used as a heading for section "Section Name" (in both perlintern and | |
51 | # perlapi). This includes any =head[2-5]. If more than one '=head1 Section | |
52 | # Name' line has content, they appear in the generated pod in an undefined | |
3f620621 | 53 | # order. Note that you can't use a $section_name_variable in =head1 lines |
9b983db7 KW |
54 | # |
55 | # The next =head1, =for apidoc_section, or file end terminates what goes into | |
56 | # the current section | |
57 | # | |
58 | # The %valid_sections hash below also can have header content, which will | |
59 | # appear before any =head1 content. The hash can also have footer content | |
60 | # content, which will appear at the end of the section, after all the | |
61 | # elements. | |
62 | # | |
63 | # The lines that define the actual functions, etc are documented in embed.fnc, | |
64 | # because they have flags which must be kept in sync with that file. | |
1fcde0e9 | 65 | |
56a0c332 | 66 | use strict; |
04adaf08 | 67 | use warnings; |
a64c954a | 68 | |
e4f5ddf4 KW |
69 | # 80 column terminal - 1 for pager adding a column; -7 for nroff |
70 | # indent; | |
71 | my $max_width = 80 - 1 - 7; | |
72 | ||
7882b24a NC |
73 | if (@ARGV) { |
74 | my $workdir = shift; | |
75 | chdir $workdir | |
76 | or die "Couldn't chdir to '$workdir': $!"; | |
77 | } | |
3d7c117d MB |
78 | require './regen/regen_lib.pl'; |
79 | require './regen/embed_lib.pl'; | |
7882b24a | 80 | |
a026e430 | 81 | my %described_elsewhere; |
b87d9527 | 82 | |
94bdecf9 | 83 | # |
346f75ff | 84 | # See database of global and static function prototypes in embed.fnc |
94bdecf9 JH |
85 | # This is used to generate prototype headers under various configurations, |
86 | # export symbols lists for different platforms, and macros to provide an | |
87 | # implicit interpreter context argument. | |
88 | # | |
89 | ||
6a235718 | 90 | my %docs; |
df6bd76f | 91 | my %seen; |
5ce57792 | 92 | my %funcflags; |
5ce57792 | 93 | my %missing; |
00d68f0d KW |
94 | my %missing_macros; |
95 | ||
96 | my $link_text = "Described in"; | |
97 | ||
783469eb KW |
98 | my $description_indent = 4; |
99 | my $usage_indent = 3; # + initial blank yields 4 total | |
100 | ||
3e294c2f | 101 | my $AV_scn = 'AV Handling'; |
3951f999 KW |
102 | my $callback_scn = 'Callback Functions'; |
103 | my $casting_scn = 'Casting'; | |
104 | my $casing_scn = 'Character case changing'; | |
105 | my $classification_scn = 'Character classification'; | |
106 | my $names_scn = 'Character names'; | |
107 | my $scope_scn = 'Compile-time scope hooks'; | |
108 | my $compiler_scn = 'Compiler and Preprocessor information'; | |
109 | my $directives_scn = 'Compiler directives'; | |
110 | my $concurrency_scn = 'Concurrency'; | |
111 | my $COP_scn = 'COP Hint Hashes'; | |
112 | my $CV_scn = 'CV Handling'; | |
113 | my $custom_scn = 'Custom Operators'; | |
d1b9805e KW |
114 | my $debugging_scn = 'Debugging'; |
115 | my $display_scn = 'Display functions'; | |
3951f999 KW |
116 | my $embedding_scn = 'Embedding and Interpreter Cloning'; |
117 | my $errno_scn = 'Errno'; | |
118 | my $exceptions_scn = 'Exception Handling (simple) Macros'; | |
119 | my $filesystem_scn = 'Filesystem configuration values'; | |
120 | my $floating_scn = 'Floating point configuration values'; | |
121 | my $formats_scn = 'Formats'; | |
122 | my $genconfig_scn = 'General Configuration'; | |
123 | my $globals_scn = 'Global Variables'; | |
124 | my $GV_scn = 'GV Handling'; | |
125 | my $hook_scn = 'Hook manipulation'; | |
126 | my $HV_scn = 'HV Handling'; | |
127 | my $io_scn = 'Input/Output'; | |
128 | my $integer_scn = 'Integer configuration values'; | |
129 | my $lexer_scn = 'Lexer interface'; | |
3e294c2f | 130 | my $locale_scn = 'Locales'; |
3951f999 KW |
131 | my $magic_scn = 'Magic'; |
132 | my $memory_scn = 'Memory Management'; | |
3e294c2f | 133 | my $MRO_scn = 'MRO'; |
3951f999 KW |
134 | my $multicall_scn = 'Multicall Functions'; |
135 | my $numeric_scn = 'Numeric Functions'; | |
136 | my $optree_construction_scn = 'Optree construction'; | |
137 | my $optree_manipulation_scn = 'Optree Manipulation Functions'; | |
138 | my $pack_scn = 'Pack and Unpack'; | |
139 | my $pad_scn = 'Pad Data Structures'; | |
140 | my $password_scn = 'Password and Group access'; | |
141 | my $paths_scn = 'Paths to system commands'; | |
142 | my $intrpvar_scn = 'Per-Interpreter Variables'; | |
143 | my $prototypes_scn = 'Prototype information'; | |
144 | my $regexp_scn = 'REGEXP Functions'; | |
145 | my $signals_scn = 'Signals'; | |
146 | my $site_scn = 'Site configuration'; | |
147 | my $sockets_scn = 'Sockets configuration values'; | |
148 | my $filters_scn = 'Source Filters'; | |
149 | my $stack_scn = 'Stack Manipulation Macros'; | |
150 | my $string_scn = 'String Handling'; | |
151 | my $SV_flags_scn = 'SV Flags'; | |
152 | my $SV_scn = 'SV Handling'; | |
153 | my $time_scn = 'Time'; | |
154 | my $typedefs_scn = 'Typedef names'; | |
155 | my $unicode_scn = 'Unicode Support'; | |
156 | my $utility_scn = 'Utility Functions'; | |
157 | my $versioning_scn = 'Versioning'; | |
158 | my $warning_scn = 'Warning and Dieing'; | |
3e294c2f | 159 | my $XS_scn = 'XS'; |
3951f999 | 160 | |
55d5a9fe KW |
161 | # Kept separate at end |
162 | my $undocumented_scn = 'Undocumented elements'; | |
163 | ||
00d68f0d | 164 | my %valid_sections = ( |
3e294c2f | 165 | $AV_scn => {}, |
3951f999 KW |
166 | $callback_scn => {}, |
167 | $casting_scn => {}, | |
168 | $casing_scn => {}, | |
169 | $classification_scn => {}, | |
170 | $scope_scn => {}, | |
171 | $compiler_scn => {}, | |
172 | $directives_scn => {}, | |
173 | $concurrency_scn => {}, | |
174 | $COP_scn => {}, | |
89222628 KW |
175 | $CV_scn => { |
176 | header => <<~'EOT', | |
177 | This section documents functions to manipulate CVs which are | |
178 | code-values, meaning subroutines. For more information, see | |
179 | L<perlguts>. | |
180 | EOT | |
181 | }, | |
182 | ||
3951f999 | 183 | $custom_scn => {}, |
d1b9805e KW |
184 | $debugging_scn => {}, |
185 | $display_scn => {}, | |
3951f999 KW |
186 | $embedding_scn => {}, |
187 | $errno_scn => {}, | |
188 | $exceptions_scn => {}, | |
189 | $filesystem_scn => { | |
6927cd44 KW |
190 | header => <<~'EOT', |
191 | Also see L</List of capability HAS_foo symbols>. | |
192 | EOT | |
193 | }, | |
3951f999 | 194 | $floating_scn => { |
00d68f0d | 195 | header => <<~'EOT', |
6927cd44 KW |
196 | Also L</List of capability HAS_foo symbols> lists capabilities |
197 | that arent in this section. For example C<HAS_ASINH>, for the | |
198 | hyperbolic sine function. | |
199 | EOT | |
200 | }, | |
3951f999 | 201 | $formats_scn => { |
6927cd44 KW |
202 | header => <<~'EOT', |
203 | These are used for formatting the corresponding type For example, | |
204 | instead of saying | |
205 | ||
206 | Perl_newSVpvf(pTHX_ "Create an SV with a %d in it\n", iv); | |
207 | ||
208 | use | |
209 | ||
210 | Perl_newSVpvf(pTHX_ "Create an SV with a " IVdf " in it\n", iv); | |
211 | ||
212 | This keeps you from having to know if, say an IV, needs to be | |
213 | printed as C<%d>, C<%ld>, or something else. | |
00d68f0d KW |
214 | EOT |
215 | }, | |
3951f999 | 216 | $genconfig_scn => { |
00d68f0d KW |
217 | header => <<~'EOT', |
218 | This section contains configuration information not otherwise | |
219 | found in the more specialized sections of this document. At the | |
220 | end is a list of C<#defines> whose name should be enough to tell | |
221 | you what they do, and a list of #defines which tell you if you | |
222 | need to C<#include> files to get the corresponding functionality. | |
223 | EOT | |
224 | ||
225 | footer => <<~'EOT', | |
226 | ||
227 | =head2 List of capability C<HAS_I<foo>> symbols | |
228 | ||
6927cd44 KW |
229 | This is a list of those symbols that dont appear elsewhere in ths |
230 | document that indicate if the current platform has a certain | |
231 | capability. Their names all begin with C<HAS_>. Only those | |
232 | symbols whose capability is directly derived from the name are | |
233 | listed here. All others have their meaning expanded out elsewhere | |
234 | in this document. This (relatively) compact list is because we | |
235 | think that the expansion would add little or no value and take up | |
236 | a lot of space (because there are so many). If you think certain | |
237 | ones should be expanded, send email to | |
238 | L<perl5-porters@perl.org|mailto:perl5-porters@perl.org>. | |
00d68f0d KW |
239 | |
240 | Each symbol here will be C<#define>d if and only if the platform | |
241 | has the capability. If you need more detail, see the | |
6927cd44 KW |
242 | corresponding entry in F<config.h>. For convenience, the list is |
243 | split so that the ones that indicate there is a reentrant version | |
244 | of a capability are listed separately | |
00d68f0d KW |
245 | |
246 | __HAS_LIST__ | |
247 | ||
6927cd44 KW |
248 | And, the reentrant capabilities: |
249 | ||
250 | __HAS_R_LIST__ | |
251 | ||
00d68f0d KW |
252 | Example usage: |
253 | ||
254 | =over | |
255 | ||
256 | #ifdef HAS_STRNLEN | |
257 | use strnlen() | |
258 | #else | |
259 | use an alternative implementation | |
260 | #endif | |
261 | ||
262 | =back | |
263 | ||
264 | =head2 List of C<#include> needed symbols | |
265 | ||
266 | This list contains symbols that indicate if certain C<#include> | |
267 | files are present on the platform. If your code accesses the | |
268 | functionality that one of these is for, you will need to | |
269 | C<#include> it if the symbol on this list is C<#define>d. For | |
270 | more detail, see the corresponding entry in F<config.h>. | |
271 | ||
272 | __INCLUDE_LIST__ | |
273 | ||
274 | Example usage: | |
275 | ||
276 | =over | |
277 | ||
278 | #ifdef I_WCHAR | |
279 | #include <wchar.h> | |
280 | #endif | |
281 | ||
282 | =back | |
283 | EOT | |
284 | }, | |
3951f999 KW |
285 | $globals_scn => {}, |
286 | $GV_scn => {}, | |
287 | $hook_scn => {}, | |
288 | $HV_scn => {}, | |
289 | $io_scn => {}, | |
290 | $integer_scn => {}, | |
291 | $lexer_scn => {}, | |
3e294c2f | 292 | $locale_scn => {}, |
3951f999 KW |
293 | $magic_scn => {}, |
294 | $memory_scn => {}, | |
3e294c2f | 295 | $MRO_scn => {}, |
3951f999 KW |
296 | $multicall_scn => {}, |
297 | $numeric_scn => {}, | |
298 | $optree_construction_scn => {}, | |
299 | $optree_manipulation_scn => {}, | |
300 | $pack_scn => {}, | |
301 | $pad_scn => {}, | |
302 | $password_scn => {}, | |
303 | $paths_scn => {}, | |
304 | $intrpvar_scn => {}, | |
305 | $prototypes_scn => {}, | |
306 | $regexp_scn => {}, | |
307 | $signals_scn => {}, | |
308 | $site_scn => { | |
6927cd44 KW |
309 | header => <<~'EOT', |
310 | These variables give details as to where various libraries, | |
311 | installation destinations, I<etc.>, go, as well as what various | |
312 | installation options were selected | |
313 | EOT | |
314 | }, | |
3951f999 KW |
315 | $sockets_scn => {}, |
316 | $filters_scn => {}, | |
317 | $stack_scn => {}, | |
318 | $string_scn => { | |
89222628 KW |
319 | header => <<~EOT, |
320 | See also C<L</$unicode_scn>>. | |
6927cd44 KW |
321 | EOT |
322 | }, | |
3951f999 KW |
323 | $SV_flags_scn => {}, |
324 | $SV_scn => {}, | |
325 | $time_scn => {}, | |
326 | $typedefs_scn => {}, | |
89222628 KW |
327 | $unicode_scn => { |
328 | header => <<~EOT, | |
329 | L<perlguts/Unicode Support> has an introduction to this API. | |
330 | ||
331 | See also C<L</$classification_scn>>, | |
332 | C<L</$casing_scn>>, | |
333 | and C<L</$string_scn>>. | |
334 | Various functions outside this section also work specially with | |
335 | Unicode. Search for the string "utf8" in this document. | |
336 | EOT | |
337 | }, | |
3951f999 KW |
338 | $utility_scn => {}, |
339 | $versioning_scn => {}, | |
340 | $warning_scn => {}, | |
3e294c2f | 341 | $XS_scn => {}, |
00d68f0d | 342 | ); |
94bdecf9 | 343 | |
9e019b59 KW |
344 | # Somewhat loose match for an apidoc line so we can catch minor typos. |
345 | # Parentheses are used to capture portions so that below we verify | |
346 | # that things are the actual correct syntax. | |
347 | my $apidoc_re = qr/ ^ (\s*) # $1 | |
348 | (=?) # $2 | |
349 | (\s*) # $3 | |
350 | for (\s*) # $4 | |
351 | apidoc (_item)? # $5 | |
352 | (\s*) # $6 | |
353 | (.*?) # $7 | |
354 | \s* \n /x; | |
183f6e59 KW |
355 | # Only certain flags, dealing with display, are acceptable for apidoc_item |
356 | my $display_flags = "fFnDopsT"; | |
9e019b59 KW |
357 | |
358 | sub check_api_doc_line ($$) { | |
359 | my ($file, $in) = @_; | |
360 | ||
361 | return unless $in =~ $apidoc_re; | |
362 | ||
363 | my $is_item = defined $5; | |
364 | my $is_in_proper_form = length $1 == 0 | |
365 | && length $2 > 0 | |
366 | && length $3 == 0 | |
367 | && length $4 > 0 | |
368 | && length $6 > 0 | |
369 | && length $7 > 0; | |
370 | my $proto_in_file = $7; | |
371 | my $proto = $proto_in_file; | |
372 | $proto = "||$proto" if $proto !~ /\|/; | |
373 | my ($flags, $ret_type, $name, @args) = split /\s*\|\s*/, $proto; | |
374 | ||
375 | $name && $is_in_proper_form or die <<EOS; | |
376 | Bad apidoc at $file line $.: | |
377 | $in | |
378 | Expected: | |
379 | =for apidoc flags|returntype|name|arg|arg|... | |
380 | =for apidoc flags|returntype|name | |
381 | =for apidoc name | |
382 | (or 'apidoc_item') | |
383 | EOS | |
384 | ||
56aac0d0 | 385 | die "Only [$display_flags] allowed in apidoc_item:\n$in" |
783469eb KW |
386 | if $is_item && $flags =~ /[^$display_flags]/; |
387 | ||
9e019b59 KW |
388 | return ($name, $flags, $ret_type, $is_item, $proto_in_file, @args); |
389 | } | |
94bdecf9 | 390 | |
4be3b9ca KW |
391 | sub embed_override($) { |
392 | my ($element_name) = shift; | |
393 | ||
394 | # If the entry is also in embed.fnc, it should be defined | |
395 | # completely there, but not here | |
396 | my $embed_docref = delete $funcflags{$element_name}; | |
397 | ||
398 | return unless $embed_docref and %$embed_docref; | |
399 | ||
400 | my $flags = $embed_docref->{'flags'}; | |
401 | warn "embed.fnc entry '$element_name' missing 'd' flag" | |
402 | unless $flags =~ /d/; | |
403 | ||
404 | return ($flags, $embed_docref->{'ret_type'}, $embed_docref->{args}->@*); | |
405 | } | |
406 | ||
89222628 KW |
407 | # The section that is in effect at the beginning of the given file. If not |
408 | # listed here, an apidoc_section line must precede any apidoc lines. | |
409 | # This allows the files listed here that generally are single-purpose, to not | |
410 | # have to worry about the autodoc section | |
411 | my %initial_file_section = ( | |
412 | 'av.c' => $AV_scn, | |
413 | 'av.h' => $AV_scn, | |
414 | 'cv.h' => $CV_scn, | |
415 | 'doio.c' => $io_scn, | |
416 | 'gv.c' => $GV_scn, | |
417 | 'gv.h' => $GV_scn, | |
418 | 'hv.h' => $HV_scn, | |
419 | 'locale.c' => $locale_scn, | |
420 | 'malloc.c' => $memory_scn, | |
421 | 'numeric.c' => $numeric_scn, | |
422 | 'opnames.h' => $optree_construction_scn, | |
423 | 'pad.h'=> $pad_scn, | |
424 | 'patchlevel.h' => $versioning_scn, | |
425 | 'perlio.h' => $io_scn, | |
426 | 'pod/perlapio.pod' => $io_scn, | |
427 | 'pod/perlcall.pod' => $callback_scn, | |
428 | 'pod/perlembed.pod' => $embedding_scn, | |
429 | 'pod/perlfilter.pod' => $filters_scn, | |
430 | 'pod/perliol.pod' => $io_scn, | |
431 | 'pod/perlmroapi.pod' => $MRO_scn, | |
432 | 'pod/perlreguts.pod' => $regexp_scn, | |
433 | 'pp_pack.c' => $pack_scn, | |
434 | 'pp_sort.c' => $SV_scn, | |
435 | 'regcomp.c' => $regexp_scn, | |
436 | 'regexp.h' => $regexp_scn, | |
437 | 'unicode_constants.h' => $unicode_scn, | |
438 | 'utf8.c' => $unicode_scn, | |
439 | 'utf8.h' => $unicode_scn, | |
440 | 'vutil.c' => $versioning_scn, | |
441 | ); | |
442 | ||
94bdecf9 JH |
443 | sub autodoc ($$) { # parse a file and extract documentation info |
444 | my($fh,$file) = @_; | |
63da8140 | 445 | my($in, $line_num, $header, $section); |
f554dfc5 | 446 | |
89222628 KW |
447 | $section = $initial_file_section{$file} |
448 | if defined $initial_file_section{$file}; | |
449 | ||
3cfa66c4 KW |
450 | my $file_is_C = $file =~ / \. [ch] $ /x; |
451 | ||
f554dfc5 | 452 | # Count lines easier |
b1cb8a49 | 453 | my $get_next_line = sub { $line_num++; return <$fh> }; |
f554dfc5 | 454 | |
63da8140 KW |
455 | # Read the file |
456 | while ($in = $get_next_line->()) { | |
457 | last unless defined $in; | |
3cfa66c4 | 458 | |
63da8140 KW |
459 | next unless ( $in =~ / ^ =for [ ]+ apidoc /x |
460 | # =head1 lines only have effect in C files | |
461 | || ($file_is_C && $in =~ /^=head1/)); | |
462 | ||
463 | # Here, the line introduces a portion of the input that we care about. | |
464 | # Either it is for an API element, or heading text which we expect | |
465 | # will be used for elements later in the file | |
466 | ||
467 | my ($text, $element_name, $flags, $ret_type, $is_item, $proto_in_file); | |
183f6e59 | 468 | my (@args, @items); |
63da8140 KW |
469 | |
470 | # If the line starts a new section ... | |
471 | if ($in=~ /^ = (?: for [ ]+ apidoc_section | head1 ) [ ]+ (.*) /x) { | |
183f6e59 | 472 | |
b1cb8a49 | 473 | $section = $1; |
3f620621 KW |
474 | if ($section =~ / ^ \$ /x) { |
475 | $section .= '_scn' unless $section =~ / _scn $ /; | |
476 | $section = eval "$section"; | |
477 | die "Unknown \$section variable '$section' in $file: $@" if $@; | |
478 | } | |
6927cd44 KW |
479 | die "Unknown section name '$section' in $file near line $.\n" |
480 | unless defined $valid_sections{$section}; | |
481 | ||
3cfa66c4 | 482 | } |
63da8140 KW |
483 | elsif ($in=~ /^ =for [ ]+ apidoc \B /x) { # Otherwise better be a |
484 | # plain apidoc line | |
183f6e59 KW |
485 | die "Unkown apidoc-type line '$in'" unless $in=~ /^=for apidoc_item/; |
486 | die "apidoc_item doesn't immediately follow an apidoc entry: '$in'"; | |
63da8140 KW |
487 | } |
488 | else { # Plain apidoc | |
489 | ||
490 | ($element_name, $flags, $ret_type, $is_item, $proto_in_file, @args) | |
491 | = check_api_doc_line($file, $in); | |
4be3b9ca KW |
492 | # Override this line with any info in embed.fnc |
493 | my ($embed_flags, $embed_ret_type, @embed_args) | |
494 | = embed_override($element_name); | |
495 | if ($embed_ret_type) { | |
63da8140 | 496 | warn "embed.fnc entry overrides redundant information in" |
4be3b9ca KW |
497 | . " '$proto_in_file' in $file" |
498 | if $flags || $ret_type || @args; | |
499 | $flags = $embed_flags; | |
500 | $ret_type = $embed_ret_type; | |
501 | @args = @embed_args; | |
502 | } | |
9e728159 KW |
503 | elsif ($flags !~ /[my]/) { # Not in embed.fnc, is missing if not |
504 | # a macro or typedef | |
63da8140 KW |
505 | $missing{$element_name} = $file; |
506 | } | |
3cfa66c4 | 507 | |
56aac0d0 | 508 | die "flag '$1' is not legal (for function $element_name (from $file))" |
9e728159 | 509 | if $flags =~ / ( [^AabCDdEeFfhiMmNnTOoPpRrSsUuWXxy] ) /x; |
151c3fe5 | 510 | |
9e728159 KW |
511 | die "'u' flag must also have 'm' or 'y' flags' for $element_name" |
512 | if $flags =~ /u/ && $flags !~ /[my]/; | |
63da8140 KW |
513 | warn ("'$element_name' not \\w+ in '$proto_in_file' in $file") |
514 | if $flags !~ /N/ && $element_name !~ / ^ [_[:alpha:]] \w* $ /x; | |
f554dfc5 | 515 | |
63da8140 KW |
516 | if (exists $seen{$element_name} && $flags !~ /h/) { |
517 | die ("'$element_name' in $file was already documented in $seen{$element_name}"); | |
518 | } | |
519 | else { | |
520 | $seen{$element_name} = $file; | |
151c3fe5 | 521 | } |
94bdecf9 | 522 | } |
df6bd76f | 523 | |
63da8140 KW |
524 | # Here we have processed the initial line in the heading text or API |
525 | # element, and have saved the important information from it into the | |
526 | # corresponding variables. Now accumulate the text that applies to it | |
527 | # up to a terminating line, which is one of: | |
528 | # 1) =cut | |
529 | # 2) =head (in a C file only =head1) | |
530 | # 3) an end comment line in a C file: m:^\s*\*/: | |
183f6e59 | 531 | # 4) =for apidoc... (except apidoc_item lines) |
63da8140 KW |
532 | $text = ""; |
533 | my $head_ender_num = ($file_is_C) ? 1 : ""; | |
534 | while (defined($in = $get_next_line->())) { | |
535 | ||
536 | last if $in =~ /^=cut/x; | |
537 | last if $in =~ /^=head$head_ender_num/; | |
538 | ||
539 | if ($file_is_C && $in =~ m: ^ \s* \* / $ :x) { | |
540 | ||
541 | # End of comment line in C files is a fall-back terminator, | |
542 | # but warn only if there actually is some accumulated text | |
543 | warn "=cut missing? $file:$line_num:$in" if $text =~ /\S/; | |
544 | last; | |
df6bd76f | 545 | } |
df6bd76f | 546 | |
63da8140 KW |
547 | if ($in !~ / ^ =for [ ]+ apidoc /x) { |
548 | $text .= $in; | |
549 | next; | |
550 | } | |
551 | ||
183f6e59 | 552 | # Here, the line is an apidoc line. All but apidoc_item terminate |
63da8140 | 553 | # the text being accumulated. |
183f6e59 KW |
554 | last if $in =~ / ^ =for [ ]+ apidoc_section /x; |
555 | ||
556 | my ($item_name, $item_flags, $item_ret_type, $is_item, | |
4be3b9ca | 557 | $item_proto, @item_args) = check_api_doc_line($file, $in); |
183f6e59 KW |
558 | last unless $is_item; |
559 | ||
560 | # Here, is an apidoc_item_line; They can only come within apidoc | |
561 | # paragraphs. | |
4be3b9ca KW |
562 | die "Unexpected api_doc_item line '$item_proto'" |
563 | unless $element_name; | |
183f6e59 KW |
564 | |
565 | # We accept blank lines between these, but nothing else; | |
56aac0d0 KW |
566 | die "apidoc_item lines must immediately follow apidoc lines for " |
567 | . " '$element_name' in $file" | |
183f6e59 | 568 | if $text =~ /\S/; |
4be3b9ca KW |
569 | # Override this line with any info in embed.fnc |
570 | my ($embed_flags, $embed_ret_type, @embed_args) | |
571 | = embed_override($item_name); | |
572 | if ($embed_ret_type) { | |
573 | warn "embed.fnc entry overrides redundant information in" | |
574 | . " '$item_proto' in $file" | |
575 | if $item_flags || $item_ret_type || @item_args; | |
576 | ||
577 | $item_flags = $embed_flags; | |
578 | $item_ret_type = $embed_ret_type; | |
579 | @item_args = @embed_args; | |
580 | } | |
183f6e59 KW |
581 | |
582 | # Use the base entry flags if none for this item; otherwise add in | |
583 | # any non-display base entry flags. | |
584 | if ($item_flags) { | |
585 | $item_flags .= $flags =~ s/[$display_flags]//rg; | |
586 | } | |
587 | else { | |
588 | $item_flags = $flags; | |
589 | } | |
590 | $item_ret_type = $ret_type unless $item_ret_type; | |
591 | @item_args = @args unless @item_args; | |
592 | push @items, { name => $item_name, | |
593 | ret_type => $item_ret_type, | |
594 | flags => $item_flags, | |
595 | args => [ @item_args ], | |
596 | }; | |
597 | ||
598 | # This line shows that this element is documented. | |
599 | delete $funcflags{$item_name}; | |
a9a7c81e | 600 | } |
3cfa66c4 | 601 | |
63da8140 KW |
602 | # Here, are done accumulating the text for this item. Trim it |
603 | $text =~ s/ ^ \s* //x; | |
604 | $text =~ s/ \s* $ //x; | |
605 | $text .= "\n" if $text ne ""; | |
6523e108 | 606 | |
63da8140 KW |
607 | # And treat all-spaces as nothing at all |
608 | undef $text unless $text =~ /\S/; | |
df6bd76f | 609 | |
63da8140 | 610 | if ($element_name) { |
df6bd76f | 611 | |
63da8140 KW |
612 | # Here, we have accumulated into $text, the pod for $element_name |
613 | my $where = $flags =~ /A/ ? 'api' : 'guts'; | |
5ce57792 | 614 | |
63da8140 KW |
615 | $section = "Functions in file $file" unless defined $section; |
616 | die "No =for apidoc_section nor =head1 in $file for '$element_name'\n" | |
617 | unless defined $section; | |
618 | if (exists $docs{$where}{$section}{$element_name}) { | |
619 | warn "$0: duplicate API entry for '$element_name' in" | |
620 | . " $where/$section\n"; | |
621 | next; | |
20046047 | 622 | } |
5ce57792 | 623 | |
63da8140 KW |
624 | # Override the text with just a link if the flags call for that |
625 | my $is_link_only = ($flags =~ /h/); | |
626 | if ($is_link_only) { | |
627 | if ($file_is_C) { | |
56aac0d0 | 628 | die "Can't currently handle link with items to it:\n$in" if @items; |
63da8140 KW |
629 | redo; # Don't put anything if C source |
630 | } | |
631 | ||
632 | # Here, is an 'h' flag in pod. We add a reference to the pod (and | |
633 | # nothing else) to perlapi/intern. (It would be better to add a | |
634 | # reference to the correct =item,=header, but something that makes | |
635 | # it harder is that it that might be a duplicate, like '=item *'; | |
636 | # so that is a future enhancement XXX. Another complication is | |
637 | # there might be more than one deserving candidates.) | |
638 | my $podname = $file =~ s!.*/!!r; # Rmv directory name(s) | |
639 | $podname =~ s/\.pod//; | |
640 | $text = "Described in L<$podname>.\n"; | |
641 | ||
642 | # Don't output a usage example for linked to documentation if | |
643 | # it is trivial (has no arguments) and we aren't to add a | |
644 | # semicolon | |
645 | $flags .= 'U' if $flags =~ /n/ && $flags !~ /[Us]/; | |
646 | ||
647 | # Keep track of all the pod files that we refer to. | |
648 | push $described_elsewhere{$podname}->@*, $podname; | |
649 | } | |
5ce57792 | 650 | |
5bf02caf KW |
651 | $docs{$where}{$section}{$element_name}{flags} = $flags; |
652 | $docs{$where}{$section}{$element_name}{pod} = $text; | |
653 | $docs{$where}{$section}{$element_name}{file} = $file; | |
654 | $docs{$where}{$section}{$element_name}{ret_type} = $ret_type; | |
655 | push $docs{$where}{$section}{$element_name}{args}->@*, @args; | |
183f6e59 | 656 | push $docs{$where}{$section}{$element_name}{items}->@*, @items; |
a9a7c81e | 657 | } |
63da8140 KW |
658 | elsif ($text) { |
659 | $valid_sections{$section}{header} = "" unless | |
660 | defined $valid_sections{$section}{header}; | |
661 | $valid_sections{$section}{header} .= "\n$text"; | |
a9a7c81e | 662 | } |
63da8140 KW |
663 | |
664 | # We already have the first line of what's to come in $in | |
665 | redo; | |
666 | ||
667 | } # End of loop through input | |
94bdecf9 JH |
668 | } |
669 | ||
00d68f0d KW |
670 | my %configs; |
671 | my @has_defs; | |
672 | my @has_r_defs; # Reentrant symbols | |
673 | my @include_defs; | |
63447426 | 674 | |
00d68f0d KW |
675 | sub parse_config_h { |
676 | use re '/aa'; # Everthing is ASCII in this file | |
677 | ||
678 | # Process config.h | |
d3871820 KW |
679 | my $config_h = 'config.h'; |
680 | $config_h = 'win32/config.h' unless -e $config_h; | |
681 | die "Can't find $config_h" unless -e $config_h; | |
682 | open my $fh, '<', $config_h or die "Can't open $config_h: $!"; | |
00d68f0d KW |
683 | while (<$fh>) { |
684 | ||
685 | # Look for lines like /* FOO_BAR: | |
686 | # By convention all config.h descriptions begin like that | |
687 | if (m[ ^ /\* [ ] ( [[:alpha:]] \w+ ) : \s* $ ]ax) { | |
688 | my $name = $1; | |
689 | ||
690 | # Here we are starting the description for $name in config.h. We | |
691 | # accumulate the entire description for it into @description. | |
692 | # Flowing text from one input line to another is appended into the | |
693 | # same array element to make a single flowing line element, but | |
694 | # verbatim lines are kept as separate elements in @description. | |
695 | # This will facilitate later doing pattern matching without regard | |
696 | # to line boundaries on non-verbatim text. | |
697 | ||
698 | die "Multiple config.h entries for '$name'" | |
699 | if defined $configs{$name}{description}; | |
700 | ||
701 | # Get first line of description | |
702 | $_ = <$fh>; | |
703 | ||
704 | # Each line in the description begins with blanks followed by '/*' | |
705 | # and some spaces. | |
706 | die "Unexpected config.h initial line for $name: '$_'" | |
707 | unless s/ ^ ( \s* \* \s* ) //x; | |
708 | my $initial_text = $1; | |
709 | ||
710 | # Initialize the description with this first line (after having | |
711 | # stripped the prefix text) | |
712 | my @description = $_; | |
713 | ||
714 | # The first line is used as a template for how much indentation | |
715 | # each normal succeeding line has. Lines indented further | |
716 | # will be considered as intended to be verbatim. But, empty lines | |
717 | # likely won't have trailing blanks, so just strip the whole thing | |
718 | # for them. | |
719 | my $strip_initial_qr = qr! \s* \* \s* $ | |
720 | | \Q$initial_text\E | |
721 | !x; | |
722 | $configs{$name}{verbatim} = 0; | |
723 | ||
724 | # Read in the remainder of the description | |
725 | while (<$fh>) { | |
726 | last if s| ^ \s* \* / ||x; # A '*/' ends it | |
727 | ||
728 | die "Unexpected config.h description line for $name: '$_'" | |
729 | unless s/$strip_initial_qr//; | |
730 | ||
731 | # Fix up the few flawed lines in config.h wherein a new | |
732 | # sentence begins with a tab (and maybe a space after that). | |
733 | # Although none of them currently do, let it recognize | |
734 | # something like | |
735 | # | |
736 | # "... text"). The next sentence ... | |
737 | # | |
738 | s/ ( \w "? \)? \. ) \t \s* ( [[:alpha:]] ) /$1 $2/xg; | |
739 | ||
740 | # If this line has extra indentation or looks to have columns, | |
741 | # it should be treated as verbatim. Columns are indicated by | |
742 | # use of interior: tabs, 3 spaces in a row, or even 2 spaces | |
743 | # not preceded by punctuation. | |
744 | if ($_ !~ m/ ^ \s | |
745 | | \S (?: \t | |
746 | | \s{3} | |
747 | | (*nlb:[[:punct:]]) \s{2} | |
748 | ) | |
749 | /x) | |
750 | { | |
751 | # But here, is not a verbatim line. Add an empty line if | |
752 | # this is the first non-verbatim after a run of verbatims | |
753 | if ($description[-1] =~ /^\s/) { | |
754 | push @description, "\n", $_; | |
755 | } | |
756 | else { # Otherwise, append this flowing line to the | |
757 | # current flowing line | |
758 | $description[-1] .= $_; | |
759 | } | |
760 | } | |
761 | else { | |
762 | $configs{$name}{verbatim} = 1; | |
763 | ||
764 | # The first verbatim line in a run of them is separated by an | |
765 | # empty line from the flowing lines above it | |
766 | push @description, "\n" if $description[-1] =~ /^\S/; | |
767 | ||
768 | $_ = Text::Tabs::expand($_); | |
769 | ||
770 | # Only a single space so less likely to wrap | |
771 | s/ ^ \s* / /x; | |
772 | ||
773 | push @description, $_; | |
774 | } | |
775 | } | |
776 | ||
777 | push $configs{$name}{description}->@*, @description | |
778 | ||
779 | } # Not a description; see if it is a macro definition. | |
780 | elsif (m! ^ | |
781 | (?: / \* )? # Optional commented-out | |
782 | # indication | |
783 | \# \s* define \s+ ( \w+ ) # $1 is the name | |
784 | ( \s* ) # $2 indicates if args or not | |
785 | ( .*? ) # $3 is any definition | |
786 | (?: / \s* \* \* / )? # Optional trailing /**/ or / **/ | |
787 | $ | |
788 | !x) | |
789 | { | |
790 | my $name = $1; | |
791 | ||
792 | # There can be multiple definitions for a name. We want to know | |
793 | # if any of them has arguments, and if any has a body. | |
794 | $configs{$name}{has_args} //= $2 eq ""; | |
795 | $configs{$name}{has_args} ||= $2 eq ""; | |
796 | $configs{$name}{has_defn} //= $3 ne ""; | |
797 | $configs{$name}{has_defn} ||= $3 ne ""; | |
798 | } | |
799 | } | |
800 | ||
801 | # We now have stored the description and information about every #define | |
802 | # in the file. The description is in a form convenient to operate on to | |
803 | # convert to pod. Do that now. | |
804 | foreach my $name (keys %configs) { | |
805 | next unless defined $configs{$name}{description}; | |
806 | ||
807 | # All adjacent non-verbatim lines of the description are appended | |
808 | # together in a single element in the array. This allows the patterns | |
809 | # to work across input line boundaries. | |
810 | ||
811 | my $pod = ""; | |
812 | while (defined ($_ = shift $configs{$name}{description}->@*)) { | |
813 | chomp; | |
814 | ||
815 | if (/ ^ \S /x) { # Don't edit verbatim lines | |
816 | ||
817 | # Enclose known file/path names not already so enclosed | |
818 | # with <...>. (Some entries in config.h are already | |
819 | # '<path/to/file>') | |
820 | my $file_name_qr = qr! [ \w / ]+ \. | |
821 | (?: c | h | xs | p [lm] | pmc | PL | |
822 | | sh | SH | exe ) \b | |
823 | !xx; | |
824 | my $path_name_qr = qr! (?: / \w+ )+ !x; | |
825 | for my $re ($file_name_qr, $path_name_qr) { | |
826 | s! (*nlb:[ < \w / ]) ( $re ) !<$1>!gxx; | |
827 | } | |
828 | ||
829 | # Enclose <... file/path names with F<...> (but no double | |
830 | # angle brackets) | |
831 | for my $re ($file_name_qr, $path_name_qr) { | |
832 | s! < ( $re ) > !F<$1>!gxx; | |
833 | } | |
834 | ||
835 | # Explain metaconfig units | |
836 | s/ ( \w+ \. U \b ) /$1 (part of metaconfig)/gx; | |
837 | ||
838 | # Convert "See foo" to "See C<L</foo>>" if foo is described in | |
839 | # this file. Also create a link to the known file INSTALL. | |
840 | # And, to be more general, handle "See also foo and bar", and | |
841 | # "See also foo, bar, and baz" | |
842 | while (m/ \b [Ss]ee \s+ | |
843 | (?: also \s+ )? ( \w+ ) | |
844 | (?: , \s+ ( \w+ ) )? | |
845 | (?: ,? \s+ and \s+ ( \w+ ) )? /xg) { | |
846 | my @links = $1; | |
847 | push @links, $2 if defined $2; | |
848 | push @links, $3 if defined $3; | |
849 | foreach my $link (@links) { | |
850 | if ($link eq 'INSTALL') { | |
851 | s/ \b INSTALL \b /C<L<INSTALL>>/xg; | |
852 | } | |
853 | elsif (grep { $link =~ / \b $_ \b /x } keys %configs) { | |
854 | s| \b $link \b |C<L</$link>>|xg; | |
855 | $configs{$link}{linked} = 1; | |
856 | $configs{$name}{linked} = 1; | |
857 | } | |
858 | } | |
859 | } | |
860 | ||
861 | # Enclose what we think are symbols with C<...>. | |
862 | no warnings 'experimental::vlb'; | |
863 | s/ (*nlb:<) | |
864 | ( | |
865 | # Any word followed immediately with parens or | |
866 | # brackets | |
867 | \b \w+ (?: \( [^)]* \) # parameter list | |
868 | | \[ [^]]* \] # or array reference | |
869 | ) | |
870 | | (*plb: ^ | \s ) -D \w+ # Also -Dsymbols. | |
871 | | \b (?: struct | union ) \s \w+ | |
872 | ||
873 | # Words that contain underscores (which are | |
874 | # definitely not text) or three uppercase letters in | |
875 | # a row. Length two ones, like IV, aren't enclosed, | |
876 | # because they often don't look as nice. | |
877 | | \b \w* (?: _ | [[:upper:]]{3,} ) \w* \b | |
878 | ) | |
879 | (*nla:>) | |
880 | /C<$1>/xg; | |
881 | ||
882 | # These include foo when the name is HAS_foo. This is a | |
883 | # heuristic which works in most cases. | |
884 | if ($name =~ / ^ HAS_ (.*) /x) { | |
885 | my $symbol = lc $1; | |
886 | ||
887 | # Don't include path components, nor things already in | |
888 | # <>, or with trailing '(', '[' | |
889 | s! \b (*nlb:[/<]) $symbol (*nla:[[/>(]) \b !C<$symbol>!xg; | |
890 | } | |
891 | } | |
892 | ||
893 | $pod .= "$_\n"; | |
894 | } | |
895 | delete $configs{$name}{description}; | |
896 | ||
897 | $configs{$name}{pod} = $pod; | |
898 | } | |
899 | ||
900 | # Now have converted the description to pod. We also now have enough | |
901 | # information that we can do cross checking to find definitions without | |
902 | # corresponding pod, and see if they are mentioned in some description; | |
903 | # otherwise they aren't documented. | |
904 | NAME: | |
905 | foreach my $name (keys %configs) { | |
906 | ||
907 | # A definition without pod | |
908 | if (! defined $configs{$name}{pod}) { | |
909 | ||
910 | # Leading/trailing underscore means internal to config.h, e.g., | |
911 | # _GNU_SOURCE | |
912 | next if $name =~ / ^ _ /x; | |
913 | next if $name =~ / _ $ /x; | |
914 | ||
915 | # MiXeD case names are internal to config.h; the first 4 | |
916 | # characters are sufficient to determine this | |
917 | next if $name =~ / ^ [[:upper:]] [[:lower:]] | |
918 | [[:upper:]] [[:lower:]] | |
919 | /x; | |
920 | ||
921 | # Here, not internal to config.h. Look to see if this symbol is | |
922 | # mentioned in the pod of some other. If so, assume it is | |
923 | # documented. | |
924 | foreach my $check_name (keys %configs) { | |
925 | my $this_element = $configs{$check_name}; | |
926 | my $this_pod = $this_element->{pod}; | |
927 | if (defined $this_pod) { | |
928 | next NAME if $this_pod =~ / \b $name \b /x; | |
929 | } | |
930 | } | |
931 | ||
932 | warn "$name has no documentation\n"; | |
933 | $missing_macros{$name} = 'config.h'; | |
934 | ||
935 | next; | |
936 | } | |
937 | ||
938 | my $has_defn = $configs{$name}{has_defn}; | |
939 | my $has_args = $configs{$name}{has_args}; | |
940 | ||
941 | # Check if any section already has an entry for this element. | |
942 | # If so, it better be a placeholder, in which case we replace it | |
943 | # with this entry. | |
944 | foreach my $section (keys $docs{'api'}->%*) { | |
945 | if (exists $docs{'api'}{$section}{$name}) { | |
946 | my $was = $docs{'api'}{$section}{$name}->{pod}; | |
947 | $was = "" unless $was; | |
948 | chomp $was; | |
949 | if ($was ne "" && $was !~ m/$link_text/) { | |
950 | die "Multiple descriptions for $name\n" | |
951 | . "$section contained '$was'"; | |
952 | } | |
953 | $docs{'api'}{$section}{$name}->{pod} = $configs{$name}{pod}; | |
954 | $configs{$name}{section} = $section; | |
955 | last; | |
956 | } | |
957 | } | |
958 | ||
959 | my $handled = 0; # Haven't handled this yet | |
960 | ||
961 | if (defined $configs{$name}{'section'}) { | |
962 | # This has been taken care of elsewhere. | |
963 | $handled = 1; | |
964 | } | |
965 | else { | |
9e728159 | 966 | my $flags = ""; |
00d68f0d KW |
967 | if ($has_defn && ! $has_args) { |
968 | $configs{$name}{args} = 1; | |
969 | } | |
970 | ||
971 | # Symbols of the form I_FOO are for #include files. They have | |
972 | # special usage information | |
973 | if ($name =~ / ^ I_ ( .* ) /x) { | |
974 | my $file = lc $1 . '.h'; | |
975 | $configs{$name}{usage} = <<~"EOT"; | |
976 | #ifdef $name | |
977 | #include <$file> | |
978 | #endif | |
979 | EOT | |
980 | } | |
981 | ||
982 | # Compute what section this variable should go into. This | |
983 | # heuristic was determined by manually inspecting the current | |
984 | # things in config.h, and should be adjusted as necessary as | |
985 | # deficiencies are found. | |
986 | # | |
987 | # This is the default section for macros with a definiton but | |
988 | # no arguments, meaning it is replaced unconditionally | |
989 | # | |
990 | my $sb = qr/ _ | \b /x; # segment boundary | |
991 | my $dash_or_spaces = qr/ - | \s+ /x; | |
992 | my $pod = $configs{$name}{pod}; | |
993 | if ($name =~ / ^ USE_ /x) { | |
3951f999 | 994 | $configs{$name}{'section'} = $site_scn; |
00d68f0d KW |
995 | } |
996 | elsif ($name =~ / SLEEP | (*nlb:SYS_) TIME | TZ | $sb TM $sb /x) | |
997 | { | |
3951f999 | 998 | $configs{$name}{'section'} = $time_scn; |
00d68f0d | 999 | } |
c86b25ed KW |
1000 | elsif ( $name =~ / ^ [[:alpha:]]+ f $ /x |
1001 | && $configs{$name}{pod} =~ m/ \b format \b /ix) | |
1002 | { | |
1003 | $configs{$name}{'section'} = $formats_scn; | |
1004 | } | |
00d68f0d KW |
1005 | elsif ($name =~ / DOUBLE | FLOAT | LONGDBL | LDBL | ^ NV |
1006 | | $sb CASTFLAGS $sb | |
1007 | | QUADMATH | |
1008 | | $sb (?: IS )? NAN | |
1009 | | $sb (?: IS )? FINITE | |
1010 | /x) | |
1011 | { | |
1012 | $configs{$name}{'section'} = | |
3951f999 | 1013 | $floating_scn; |
00d68f0d KW |
1014 | } |
1015 | elsif ($name =~ / (?: POS | OFF | DIR ) 64 /x) { | |
3951f999 | 1016 | $configs{$name}{'section'} = $filesystem_scn; |
00d68f0d KW |
1017 | } |
1018 | elsif ( $name =~ / $sb (?: BUILTIN | CPP ) $sb | ^ CPP /x | |
1019 | || $configs{$name}{pod} =~ m/ \b align /x) | |
1020 | { | |
3951f999 | 1021 | $configs{$name}{'section'} = $compiler_scn; |
00d68f0d KW |
1022 | } |
1023 | elsif ($name =~ / ^ [IU] [ \d V ] | |
1024 | | ^ INT | SHORT | LONG | QUAD | 64 | 32 /xx) | |
1025 | { | |
3951f999 | 1026 | $configs{$name}{'section'} = $integer_scn; |
00d68f0d KW |
1027 | } |
1028 | elsif ($name =~ / $sb t $sb /x) { | |
3951f999 | 1029 | $configs{$name}{'section'} = $typedefs_scn; |
9e728159 | 1030 | $flags .= 'y'; |
00d68f0d KW |
1031 | } |
1032 | elsif ( $name =~ / ^ PERL_ ( PRI | SCN ) | $sb FORMAT $sb /x | |
1033 | && $configs{$name}{pod} =~ m/ \b format \b /ix) | |
1034 | { | |
3951f999 | 1035 | $configs{$name}{'section'} = $formats_scn; |
00d68f0d KW |
1036 | } |
1037 | elsif ($name =~ / BACKTRACE /x) { | |
d1b9805e | 1038 | $configs{$name}{'section'} = $debugging_scn; |
00d68f0d KW |
1039 | } |
1040 | elsif ($name =~ / ALLOC $sb /x) { | |
3951f999 | 1041 | $configs{$name}{'section'} = $memory_scn; |
00d68f0d KW |
1042 | } |
1043 | elsif ( $name =~ / STDIO | FCNTL | EOF | FFLUSH | |
1044 | | $sb FILE $sb | |
1045 | | $sb DIR $sb | |
1046 | | $sb LSEEK | |
1047 | | $sb INO $sb | |
1048 | | $sb OPEN | |
1049 | | $sb CLOSE | |
1050 | | ^ DIR | |
1051 | | ^ INO $sb | |
1052 | | DIR $ | |
1053 | | FILENAMES | |
1054 | /x | |
1055 | || $configs{$name}{pod} =~ m! I/O | stdio | |
1056 | | file \s+ descriptor | |
1057 | | file \s* system | |
1058 | | statfs | |
1059 | !x) | |
1060 | { | |
3951f999 | 1061 | $configs{$name}{'section'} = $filesystem_scn; |
00d68f0d KW |
1062 | } |
1063 | elsif ($name =~ / ^ SIG | SIGINFO | signal /ix) { | |
3951f999 | 1064 | $configs{$name}{'section'} = $signals_scn; |
00d68f0d KW |
1065 | } |
1066 | elsif ($name =~ / $sb ( PROTO (?: TYPE)? S? ) $sb /x) { | |
3951f999 | 1067 | $configs{$name}{'section'} = $prototypes_scn; |
00d68f0d KW |
1068 | } |
1069 | elsif ( $name =~ / ^ LOC_ /x | |
1070 | || $configs{$name}{pod} =~ /full path/i) | |
1071 | { | |
3951f999 | 1072 | $configs{$name}{'section'} = $paths_scn; |
00d68f0d KW |
1073 | } |
1074 | elsif ($name =~ / $sb LC_ | LOCALE | langinfo /xi) { | |
3e294c2f | 1075 | $configs{$name}{'section'} = $locale_scn; |
00d68f0d KW |
1076 | } |
1077 | elsif ($configs{$name}{pod} =~ / GCC | C99 | C\+\+ /xi) { | |
3951f999 | 1078 | $configs{$name}{'section'} = $compiler_scn; |
00d68f0d KW |
1079 | } |
1080 | elsif ($name =~ / PASSW (OR)? D | ^ PW | ( PW | GR ) ENT /x) | |
1081 | { | |
3951f999 | 1082 | $configs{$name}{'section'} = $password_scn; |
00d68f0d KW |
1083 | } |
1084 | elsif ($name =~ / SOCKET | $sb SOCK /x) { | |
3951f999 | 1085 | $configs{$name}{'section'} = $sockets_scn; |
00d68f0d KW |
1086 | } |
1087 | elsif ( $name =~ / THREAD | MULTIPLICITY /x | |
1088 | || $configs{$name}{pod} =~ m/ \b pthread /ix) | |
1089 | { | |
3951f999 | 1090 | $configs{$name}{'section'} = $concurrency_scn; |
00d68f0d KW |
1091 | } |
1092 | elsif ($name =~ / PERL | ^ PRIV | SITE | ARCH | BIN | |
1093 | | VENDOR | ^ USE | |
1094 | /x) | |
1095 | { | |
3951f999 | 1096 | $configs{$name}{'section'} = $site_scn; |
00d68f0d KW |
1097 | } |
1098 | elsif ( $pod =~ / \b floating $dash_or_spaces point \b /ix | |
63447426 KW |
1099 | || $pod =~ / \b (double | single) $dash_or_spaces precision \b /ix |
1100 | || $pod =~ / \b doubles \b /ix | |
1101 | || $pod =~ / \b (?: a | the | long ) \s+ (?: double | NV ) \b /ix) | |
00d68f0d KW |
1102 | { |
1103 | $configs{$name}{'section'} = | |
3951f999 | 1104 | $floating_scn; |
00d68f0d KW |
1105 | } |
1106 | else { | |
1107 | # Above are the specific sections. The rest go into a | |
1108 | # grab-bag of general configuration values. However, we put | |
1109 | # two classes of them into lists of their names, without their | |
1110 | # descriptions, when we think that the description doesn't add | |
1111 | # any real value. One list contains the #include variables: | |
1112 | # the description is basically boiler plate for each of these. | |
1113 | # The other list contains the very many things that are of the | |
1114 | # form HAS_foo, and \bfoo\b is contained in its description, | |
1115 | # and there is no verbatim text in the pod or links to/from it | |
1116 | # (which would add value). That means that it is likely the | |
1117 | # intent of the variable can be gleaned from just its name, | |
1118 | # and unlikely the description adds signficant value, so just | |
1119 | # listing them suffices. Giving their descriptions would | |
1120 | # expand this pod significantly with little added value. | |
1121 | if ( ! $has_defn | |
1122 | && ! $configs{$name}{verbatim} | |
1123 | && ! $configs{$name}{linked}) | |
1124 | { | |
1125 | if ($name =~ / ^ I_ ( .* ) /x) { | |
1126 | push @include_defs, $name; | |
1127 | next; | |
1128 | } | |
1129 | elsif ($name =~ / ^ HAS_ ( .* ) /x) { | |
1130 | my $canonical_name = $1; | |
1131 | $canonical_name =~ s/_//g; | |
1132 | ||
1133 | my $canonical_pod = $configs{$name}{pod}; | |
1134 | $canonical_pod =~ s/_//g; | |
1135 | ||
1136 | if ($canonical_pod =~ / \b $canonical_name \b /xi) { | |
1137 | if ($name =~ / $sb R $sb /x) { | |
1138 | push @has_r_defs, $name; | |
1139 | } | |
1140 | else { | |
1141 | push @has_defs, $name; | |
1142 | } | |
1143 | next; | |
1144 | } | |
1145 | } | |
1146 | } | |
1147 | ||
3951f999 | 1148 | $configs{$name}{'section'} = $genconfig_scn; |
00d68f0d KW |
1149 | } |
1150 | ||
1151 | my $section = $configs{$name}{'section'}; | |
6927cd44 KW |
1152 | die "Internal error: '$section' not in \%valid_sections" |
1153 | unless grep { $_ eq $section } keys %valid_sections; | |
9e728159 | 1154 | $flags .= 'AdmnT'; |
00d68f0d | 1155 | $flags .= 'U' unless defined $configs{$name}{usage}; |
9e728159 | 1156 | |
63447426 | 1157 | # All the information has been gathered; save it |
00d68f0d KW |
1158 | $docs{'api'}{$section}{$name}{flags} = $flags; |
1159 | $docs{'api'}{$section}{$name}{pod} = $configs{$name}{pod}; | |
1160 | $docs{'api'}{$section}{$name}{ret_type} = ""; | |
1161 | $docs{'api'}{$section}{$name}{file} = 'config.h'; | |
1162 | $docs{'api'}{$section}{$name}{usage} | |
1163 | = $configs{$name}{usage} if defined $configs{$name}{usage}; | |
1164 | push $docs{'api'}{$section}{$name}{args}->@*, (); | |
1165 | push $docs{'api'}{$section}{$name}{items}->@*, (); | |
1166 | } | |
1167 | } | |
1168 | } | |
1169 | ||
c7a2af98 KW |
1170 | sub format_pod_indexes($) { |
1171 | my $entries_ref = shift; | |
1172 | ||
1173 | # Output the X<> references to the names, packed since they don't get | |
1174 | # displayed, but not too many per line so that when someone is editing the | |
1175 | # file, it doesn't run on | |
1176 | ||
1177 | my $text =""; | |
1178 | my $line_length = 0; | |
1179 | for my $name (sort dictionary_order $entries_ref->@*) { | |
1180 | my $entry = "X<$name>"; | |
1181 | my $entry_length = length $entry; | |
1182 | ||
1183 | # Don't loop forever if we have a verrry long name, and don't go too | |
1184 | # far to the right. | |
1185 | if ($line_length > 0 && $line_length + $entry_length > $max_width) { | |
1186 | $text .= "\n"; | |
1187 | $line_length = 0; | |
1188 | } | |
1189 | ||
1190 | $text .= $entry; | |
1191 | $line_length += $entry_length; | |
1192 | } | |
1193 | ||
1194 | return $text; | |
1195 | } | |
1196 | ||
94bdecf9 | 1197 | sub docout ($$$) { # output the docs for one function |
b1cb8a49 | 1198 | my($fh, $element_name, $docref) = @_; |
5bf02caf | 1199 | |
783469eb KW |
1200 | # Trim trailing space |
1201 | $element_name =~ s/\s*$//; | |
1202 | ||
5bf02caf | 1203 | my $flags = $docref->{flags}; |
63da8140 | 1204 | my $pod = $docref->{pod} // ""; |
5bf02caf | 1205 | my $file = $docref->{file}; |
783469eb | 1206 | |
183f6e59 | 1207 | my @items = $docref->{items}->@*; |
5bf02caf | 1208 | |
783469eb KW |
1209 | # Make the main element the first of the items. This allows uniform |
1210 | # treatment below | |
1211 | unshift @items, { name => $element_name, | |
1212 | flags => $flags, | |
1213 | ret_type => $docref->{ret_type}, | |
1214 | args => [ $docref->{args}->@* ], | |
1215 | }; | |
94bdecf9 | 1216 | |
7a997878 | 1217 | warn("Empty pod for $element_name (from $file)") unless $pod =~ /\S/; |
9639517b | 1218 | |
783469eb KW |
1219 | print $fh "\n=over $description_indent\n"; |
1220 | print $fh "\n=item C<$_->{name}>\n" for @items; | |
63da8140 | 1221 | |
783469eb KW |
1222 | # If we're printing only a link to an element, this isn't the major entry, |
1223 | # so no X<> here. | |
1224 | if ($flags !~ /h/) { | |
1225 | print $fh "X<$_->{name}>" for @items; | |
1226 | print $fh "\n"; | |
d4e99c76 | 1227 | } |
63da8140 | 1228 | |
783469eb KW |
1229 | for my $item (@items) { |
1230 | if ($item->{flags} =~ /D/) { | |
1231 | print $fh <<~"EOT"; | |
54c193ae | 1232 | |
783469eb KW |
1233 | C<B<DEPRECATED!>> It is planned to remove C<$item->{name}> from a |
1234 | future release of Perl. Do not use it for new code; remove it from | |
1235 | existing code. | |
1236 | EOT | |
1237 | } | |
1238 | elsif ($item->{flags} =~ /x/) { | |
1239 | print $fh <<~"EOT"; | |
54c193ae | 1240 | |
783469eb KW |
1241 | NOTE: C<$item->{name}> is B<experimental> and may change or be |
1242 | removed without notice. | |
1243 | EOT | |
1244 | } | |
54c193ae | 1245 | } |
94bdecf9 | 1246 | |
783469eb KW |
1247 | chomp $pod; # Make sure prints pod with a single trailing \n |
1248 | print $fh "\n", $pod, "\n"; | |
3cfa66c4 | 1249 | |
783469eb KW |
1250 | for my $item (@items) { |
1251 | my $item_flags = $item->{flags}; | |
1252 | my $item_name = $item->{name}; | |
3cfa66c4 | 1253 | |
783469eb KW |
1254 | print $fh "\nNOTE: the C<perl_$item_name()> form is B<deprecated>.\n" |
1255 | if $item_flags =~ /O/; | |
1256 | # Is Perl_, but no #define foo # Perl_foo | |
1257 | if (($item_flags =~ /p/ && $item_flags =~ /o/ && $item_flags !~ /M/) | |
1258 | ||
1259 | # Can't handle threaded varargs | |
1260 | || ($item_flags =~ /f/ && $item_flags !~ /T/)) | |
1261 | { | |
1262 | $item->{name} = "Perl_$item_name"; | |
1263 | print $fh <<~"EOT"; | |
1264 | ||
1265 | NOTE: C<$item_name> must be explicitly called as | |
1266 | C<$item->{name}> | |
1267 | EOT | |
1268 | print $fh "with an C<aTHX_> parameter" if $item_flags !~ /T/; | |
1269 | print $fh ".\n"; | |
1270 | } | |
1271 | } | |
94bdecf9 | 1272 | |
9e728159 KW |
1273 | if ($flags =~ /[Uy]/) { # no usage; typedefs are considered simple enough |
1274 | # to never warrant a usage line | |
1275 | warn("U and s flags are incompatible") | |
1276 | if $flags =~ /U/ && $flags =~ /s/; | |
20046047 | 1277 | # nothing |
05ca4832 | 1278 | } else { |
783469eb KW |
1279 | |
1280 | print $fh "\n=over $usage_indent\n"; | |
1281 | ||
00d68f0d KW |
1282 | if (defined $docref->{usage}) { # An override of the usage section |
1283 | print $fh "\n", ($docref->{usage} =~ s/^/ /mrg), "\n"; | |
1284 | } | |
783469eb KW |
1285 | else { |
1286 | ||
8d1c4423 KW |
1287 | # Add the thread context formal parameter on expanded-out names |
1288 | for my $item (@items) { | |
1289 | unshift $item->{args}->@*, (($item->{args}->@*) | |
1290 | ? "pTHX_" | |
1291 | : "pTHX") | |
1292 | if $item->{flags} !~ /T/ | |
1293 | && $item->{name} =~ /^Perl_/; | |
1294 | } | |
1295 | ||
783469eb KW |
1296 | # Look through all the items in this entry. If all have the same |
1297 | # return type and arguments, only the main entry is displayed. | |
1298 | # Also, find the longest return type and longest name so that if | |
1299 | # multiple ones are shown, they can be vertically aligned nicely | |
783469eb | 1300 | my $need_individual_usage = 0; |
53c9fbf2 | 1301 | my $longest_name_length = length $items[0]->{name}; |
783469eb | 1302 | my $base_ret_type = $items[0]->{ret_type}; |
53c9fbf2 | 1303 | my $longest_ret = length $base_ret_type; |
783469eb | 1304 | my @base_args = $items[0]->{args}->@*; |
53c9fbf2 | 1305 | for (my $i = 1; $i < @items; $i++) { |
783469eb | 1306 | no warnings 'experimental::smartmatch'; |
53c9fbf2 | 1307 | my $item = $items[$i]; |
783469eb KW |
1308 | $need_individual_usage = 1 |
1309 | if $item->{ret_type} ne $base_ret_type | |
1310 | || ! ($item->{args}->@* ~~ @base_args); | |
1311 | my $ret_length = length $item->{ret_type}; | |
1312 | $longest_ret = $ret_length if $ret_length > $longest_ret; | |
1313 | my $name_length = length $item->{name}; | |
1314 | $longest_name_length = $name_length | |
1315 | if $name_length > $longest_name_length; | |
1ded1f42 | 1316 | } |
783469eb KW |
1317 | |
1318 | # If we're only showing one entry, only its length matters. | |
1319 | $longest_name_length = length($items[0]->{name}) | |
1320 | unless $need_individual_usage; | |
1321 | print $fh "\n"; | |
1322 | ||
1323 | my $indent = 1; # 1 is sufficient for verbatim; =over is used | |
1324 | # for more | |
1325 | my $ret_name_sep_length = 2; # spaces between return type and name | |
1326 | my $name_indent = $indent + $longest_ret; | |
1327 | $name_indent += $ret_name_sep_length if $longest_ret; | |
1328 | ||
ca711307 KW |
1329 | my $this_max_width = |
1330 | $max_width - $description_indent - $usage_indent; | |
1331 | ||
783469eb KW |
1332 | for my $item (@items) { |
1333 | my $ret_type = $item->{ret_type}; | |
1334 | my @args = $item->{args}->@*; | |
1335 | my $name = $item->{name}; | |
1336 | my $item_flags = $item->{flags}; | |
1337 | ||
783469eb KW |
1338 | # The return type |
1339 | print $fh (" " x $indent), $ret_type; | |
1340 | ||
1341 | print $fh " " x ( $ret_name_sep_length | |
1342 | + $longest_ret - length $ret_type); | |
1343 | print $fh $name; | |
1344 | ||
1345 | if ($item_flags =~ /n/) { # no args | |
1346 | warn("$file: $element_name: n flag without m") | |
1347 | unless $item_flags =~ /m/; | |
1348 | warn("$file: $name: n flag but apparently has args") | |
1349 | if @args; | |
1350 | } | |
1351 | else { | |
1352 | # +1 for the '(' | |
1353 | my $arg_indent = $name_indent + $longest_name_length + 1; | |
1354 | ||
1355 | # Align the argument lists of the items | |
1356 | print $fh " " x ($longest_name_length - length($name)); | |
1357 | print $fh "("; | |
1358 | ||
1359 | # Display as many of the arguments on the same line as | |
1360 | # will fit. | |
1361 | my $total_length = $arg_indent; | |
1362 | my $first_line = 1; | |
1363 | for (my $i = 0; $i < @args; $i++) { | |
1364 | my $arg = $args[$i]; | |
1365 | my $arg_length = length($arg); | |
1366 | ||
1367 | # All but the first arg are preceded by a blank | |
1368 | my $use_blank = $i > 0; | |
1369 | ||
1370 | # +1 here and below because either the argument has a | |
1371 | # trailing comma or trailing ')' | |
1372 | $total_length += $arg_length + $use_blank + 1; | |
1373 | ||
1374 | # We want none of the arguments to be positioned so | |
1375 | # they extend too far to the right. Ideally, they | |
1376 | # should all start in the same column as the arguments | |
1377 | # on the first line of the function display do. But, if | |
1378 | # necessary, outdent them so that they all start in | |
1379 | # another column, with the longest ending at the right | |
1380 | # margin, like so: | |
1381 | # void function_name(pTHX_ short1, | |
1382 | # short2, | |
1383 | # very_long_argument, | |
1384 | # short3) | |
ca711307 | 1385 | if ($total_length > $this_max_width) { |
783469eb KW |
1386 | |
1387 | # If this is the first continuation line, | |
1388 | # calculate the longest argument; this will be the | |
1389 | # one we may have to outdent for. | |
1390 | if ($first_line) { | |
1391 | $first_line = 0; | |
1392 | ||
1393 | # We will need at least as much as the current | |
1394 | # argument | |
1395 | my $longest_arg_length = $arg_length | |
1396 | + $use_blank + 1; | |
1397 | ||
1398 | # Look through the rest of the args to see if | |
1399 | # any are longer than this one. | |
1400 | for (my $j = $i + 1; $j < @args; $j++) { | |
1401 | ||
1402 | # Include the trailing ',' or ')' in the | |
1403 | # length. No need to concern ourselves | |
1404 | # with a leading blank, as the argument | |
1405 | # would be positioned first on the next | |
1406 | # line | |
1407 | my $peek_arg_length = length ($args[$j]) | |
1408 | + 1; | |
1409 | $longest_arg_length = $peek_arg_length | |
1410 | if $peek_arg_length > $longest_arg_length; | |
1411 | } | |
1412 | ||
1413 | # Calculate the new indent if necessary. | |
ca711307 KW |
1414 | $arg_indent = |
1415 | $this_max_width - $longest_arg_length | |
783469eb | 1416 | if $arg_indent + $longest_arg_length |
ca711307 | 1417 | > $this_max_width; |
783469eb KW |
1418 | } |
1419 | ||
1420 | print $fh "\n", (" " x $arg_indent); | |
1421 | $total_length = $arg_indent + $arg_length + 1; | |
1422 | $use_blank = 0; | |
1423 | } | |
1424 | ||
1425 | # Display this argument | |
1426 | print $fh " " if $use_blank; | |
1427 | print $fh $arg; | |
1428 | print $fh "," if $i < @args - 1 && $args[$i] ne 'pTHX_'; | |
1429 | ||
1430 | } # End of loop through args | |
1431 | ||
1432 | print $fh ")"; | |
1ded1f42 | 1433 | } |
783469eb KW |
1434 | |
1435 | print $fh ";" if $item_flags =~ /s/; # semicolon: "dTHR;" | |
1436 | print $fh "\n"; | |
1437 | ||
1438 | # Only the first entry is normally displayed | |
1439 | last unless $need_individual_usage; | |
1ded1f42 | 1440 | } |
1ded1f42 | 1441 | } |
783469eb KW |
1442 | |
1443 | print $fh "\n=back\n"; | |
94bdecf9 | 1444 | } |
783469eb KW |
1445 | |
1446 | print $fh "\n=back\n"; | |
63da8140 | 1447 | print $fh "\n=for hackers\nFound in file $file\n"; |
94bdecf9 JH |
1448 | } |
1449 | ||
02c5183e KW |
1450 | sub construct_missings_section { |
1451 | my ($pod_name, $missings_ref) = @_; | |
1452 | my $text = ""; | |
1453 | ||
1454 | return $text unless $missings_ref->@*; | |
1455 | ||
1456 | $text .= <<~EOT; | |
d5c04b1e | 1457 | |
55d5a9fe | 1458 | =head1 $undocumented_scn |
02c5183e KW |
1459 | |
1460 | EOT | |
1461 | if ($pod_name eq 'perlapi') { | |
1462 | $text .= <<~'EOT'; | |
1463 | The following functions have been flagged as part of the public | |
1464 | API, but are currently undocumented. Use them at your own risk, | |
1465 | as the interfaces are subject to change. Functions that are not | |
1466 | listed in this document are not intended for public use, and | |
1467 | should NOT be used under any circumstances. | |
1468 | ||
1469 | If you feel you need to use one of these functions, first send | |
1470 | email to L<perl5-porters@perl.org|mailto:perl5-porters@perl.org>. | |
1471 | It may be that there is a good reason for the function not being | |
1472 | documented, and it should be removed from this list; or it may | |
1473 | just be that no one has gotten around to documenting it. In the | |
1474 | latter case, you will be asked to submit a patch to document the | |
1475 | function. Once your patch is accepted, it will indicate that the | |
1476 | interface is stable (unless it is explicitly marked otherwise) and | |
1477 | usable by you. | |
1478 | EOT | |
1479 | } | |
1480 | else { | |
1481 | $text .= <<~'EOT'; | |
1482 | The following functions are currently undocumented. If you use | |
1483 | one of them, you may wish to consider creating and submitting | |
1484 | documentation for it. | |
1485 | EOT | |
1486 | } | |
1487 | ||
c7a2af98 | 1488 | $text .= "\n" . format_pod_indexes($missings_ref); |
e4f5ddf4 KW |
1489 | |
1490 | # Sort the elements. | |
1491 | my @missings = sort dictionary_order $missings_ref->@*; | |
1492 | ||
e4f5ddf4 | 1493 | |
c7a2af98 | 1494 | $text .= "\n"; |
e4f5ddf4 KW |
1495 | |
1496 | use integer; | |
1497 | ||
1498 | # Look through all the elements in the list and see how many columns we | |
1499 | # could place them in the output what will fit in the available width. | |
1500 | my $min_spacer = 2; # Need this much space between columns | |
1501 | my $columns; | |
1502 | my $rows; | |
1503 | my @col_widths; | |
1504 | ||
1505 | COLUMN: | |
1506 | # We start with more columns, and work down until we find a number that | |
1507 | # can accommodate all the data. This algorithm doesn't require the | |
1508 | # resulting columns to all have the same width. This can allow for | |
1509 | # as tight of packing as the data will possibly allow. | |
1510 | for ($columns = 7; $columns > 1; $columns--) { | |
1511 | ||
1512 | # For this many columns, we will need this many rows (final row might | |
1513 | # not be completely filled) | |
1514 | $rows = (@missings + $columns - 1) / $columns; | |
1515 | ||
1516 | my $row_width = 0; | |
1517 | my $i = 0; # Which missing element | |
1518 | ||
1519 | # For each column ... | |
1520 | for my $col (0 .. $columns - 1) { | |
1521 | ||
1522 | # Calculate how wide the column needs to be, which is based on the | |
1523 | # widest element in it | |
1524 | $col_widths[$col] = 0; | |
1525 | ||
1526 | # Look through all the rows to find the widest element | |
1527 | for my $row (0 .. $rows - 1) { | |
1528 | ||
1529 | # Skip if this row doesn't have an entry for this column | |
1530 | last if $i >= @missings; | |
1531 | ||
1532 | # This entry occupies this many bytes. | |
1533 | my $this_width = length $missings[$i]; | |
1534 | ||
1535 | # All but the final column need a spacer between it and the | |
1536 | # next column over. | |
1537 | $this_width += $min_spacer if $col < $columns - 1; | |
1538 | ||
1539 | ||
1540 | # This column will need to have enough width to accommodate | |
1541 | # this element | |
1542 | if ($this_width > $col_widths[$col]) { | |
1543 | ||
1544 | # We can't have this many columns if the total width | |
1545 | # exceeds the available; bail now and try fewer columns | |
1546 | next COLUMN if $row_width + $this_width > $max_width; | |
1547 | ||
1548 | $col_widths[$col] = $this_width; | |
1549 | } | |
1550 | ||
1551 | $i++; # The next row will contain the next item | |
1552 | } | |
1553 | ||
1554 | $row_width += $col_widths[$col]; | |
1555 | next COLUMN if $row_width > $max_width; | |
1556 | } | |
1557 | ||
1558 | # If we get this far, this many columns works | |
1559 | last; | |
1560 | } | |
1561 | ||
1562 | # Here, have calculated the number of rows ($rows) and columns ($columns) | |
1563 | # required to list the elements. @col_widths contains the width of each | |
1564 | # column. | |
1565 | ||
1566 | $text .= "\n\n=over $description_indent\n\n"; | |
1567 | ||
1568 | # Assemble the output | |
1569 | for my $row (0 .. $rows - 1) { | |
1570 | for my $col (0 .. $columns - 1) { | |
1571 | $text .= " " if $col == 0; # Indent one to mark as verbatim | |
1572 | ||
1573 | my $index = $row + $rows * $col; # Convert 2 dimensions to 1 | |
1574 | ||
1575 | # Skip if this row doesn't have an entry for this column | |
1576 | next if $index >= @missings; | |
1577 | ||
1578 | my $element = $missings[$index]; | |
1579 | $text .= $element; | |
1580 | ||
1581 | # Add alignment spaces for all but final column | |
1582 | $text .= " " x ($col_widths[$col] - length $element) | |
1583 | if $col < $columns - 1; | |
1584 | } | |
02c5183e | 1585 | |
e4f5ddf4 | 1586 | $text .= "\n"; # End of row |
02c5183e KW |
1587 | } |
1588 | ||
1589 | $text .= "\n=back\n"; | |
1590 | ||
1591 | return $text; | |
1592 | } | |
1593 | ||
1594 | sub dictionary_order { | |
f83c6033 KW |
1595 | # Do a case-insensitive dictionary sort, with only alphabetics |
1596 | # significant, falling back to using everything for determinancy | |
1354d57e | 1597 | return (uc($a =~ s/[[:^alpha:]]//r) cmp uc($b =~ s/[[:^alpha:]]//r)) |
f83c6033 KW |
1598 | || uc($a) cmp uc($b) |
1599 | || $a cmp $b; | |
1600 | } | |
1601 | ||
7b73ff98 | 1602 | sub output { |
d5c04b1e | 1603 | my ($podname, $header, $dochash, $missings_ref, $footer) = @_; |
6a4c4cd4 DM |
1604 | # |
1605 | # strip leading '|' from each line which had been used to hide | |
1606 | # pod from pod checkers. | |
1607 | s/^\|//gm for $header, $footer; | |
1608 | ||
7882b24a | 1609 | my $fh = open_new("pod/$podname.pod", undef, |
20046047 | 1610 | {by => "$0 extracting documentation", |
f1f44974 | 1611 | from => 'the C source files'}, 1); |
e0492643 | 1612 | |
63da8140 | 1613 | print $fh $header, "\n"; |
e0492643 | 1614 | |
02c5183e | 1615 | for my $section_name (sort dictionary_order keys %valid_sections) { |
7a997878 | 1616 | my $section_info = $dochash->{$section_name}; |
36ea2d2f | 1617 | |
5781dcac KW |
1618 | # We allow empty sections in perlintern. |
1619 | if (! $section_info && $podname eq 'perlapi') { | |
36ea2d2f | 1620 | warn "Empty section '$section_name'; skipped"; |
36ea2d2f KW |
1621 | next; |
1622 | } | |
1623 | ||
63da8140 KW |
1624 | print $fh "\n=head1 $section_name\n"; |
1625 | ||
5781dcac KW |
1626 | if ($podname eq 'perlapi') { |
1627 | print $fh "\n", $valid_sections{$section_name}{header}, "\n" | |
1628 | if defined $valid_sections{$section_name}{header}; | |
151c3fe5 | 1629 | |
5781dcac KW |
1630 | # Output any heading-level documentation and delete so won't get in |
1631 | # the way later | |
1632 | if (exists $section_info->{""}) { | |
1633 | print $fh "\n", $section_info->{""}, "\n"; | |
1634 | delete $section_info->{""}; | |
1635 | } | |
151c3fe5 | 1636 | } |
151c3fe5 | 1637 | |
74ab7b79 | 1638 | if ($section_info && keys $section_info->%*) { |
02c5183e | 1639 | for my $function_name (sort dictionary_order keys %$section_info) { |
5781dcac KW |
1640 | docout($fh, $function_name, $section_info->{$function_name}); |
1641 | } | |
1642 | } | |
1643 | else { | |
1644 | print $fh "\nThere are only public API items currently in $section_name\n"; | |
20046047 | 1645 | } |
00b0fb83 KW |
1646 | |
1647 | print $fh "\n", $valid_sections{$section_name}{footer}, "\n" | |
5781dcac KW |
1648 | if $podname eq 'perlapi' |
1649 | && defined $valid_sections{$section_name}{footer}; | |
7b73ff98 NC |
1650 | } |
1651 | ||
d5c04b1e | 1652 | print $fh construct_missings_section($podname, $missings_ref); |
63da8140 KW |
1653 | |
1654 | print $fh "\n$footer\n=cut\n"; | |
5a0155e6 | 1655 | |
7882b24a | 1656 | read_only_bottom_close_and_rename($fh); |
cd093254 MM |
1657 | } |
1658 | ||
e8e591c9 NC |
1659 | foreach (@{(setup_embed())[0]}) { |
1660 | next if @$_ < 2; | |
b1cb8a49 | 1661 | my ($flags, $ret_type, $func, @args) = @$_; |
e8e591c9 | 1662 | s/\b(?:NN|NULLOK)\b\s+//g for @args; |
bc350081 | 1663 | |
5ce57792 | 1664 | $funcflags{$func} = { |
20046047 | 1665 | flags => $flags, |
b1cb8a49 | 1666 | ret_type => $ret_type, |
20046047 KE |
1667 | args => \@args, |
1668 | }; | |
5ce57792 NC |
1669 | } |
1670 | ||
5ce57792 NC |
1671 | # glob() picks up docs from extra .c or .h files that may be in unclean |
1672 | # development trees. | |
741c0772 NC |
1673 | open my $fh, '<', 'MANIFEST' |
1674 | or die "Can't open MANIFEST: $!"; | |
1675 | while (my $line = <$fh>) { | |
b87d9527 | 1676 | next unless my ($file) = $line =~ /^(\S+\.(?:[ch]|pod))\t/; |
5ce57792 | 1677 | |
7cb0b6c4 KW |
1678 | # Don't pick up pods from these. (We may pick up generated stuff from |
1679 | # /lib though) | |
1680 | next if $file =~ m! ^ ( cpan | dist | ext ) / !x; | |
1681 | ||
1ae6ead9 | 1682 | open F, '<', $file or die "Cannot open $file for docs: $!\n"; |
5ce57792 NC |
1683 | autodoc(\*F,$file); |
1684 | close F or die "Error closing $file: $!\n"; | |
1685 | } | |
741c0772 | 1686 | close $fh or die "Error whilst reading MANIFEST: $!"; |
5ce57792 | 1687 | |
00d68f0d KW |
1688 | parse_config_h(); |
1689 | ||
5ce57792 NC |
1690 | for (sort keys %funcflags) { |
1691 | next unless $funcflags{$_}{flags} =~ /d/; | |
6523e108 | 1692 | next if $funcflags{$_}{flags} =~ /h/; |
573cf2be | 1693 | warn "no docs for $_\n"; |
bc350081 | 1694 | } |
94bdecf9 | 1695 | |
5ce57792 | 1696 | foreach (sort keys %missing) { |
5ce57792 | 1697 | warn "Function '$_', documented in $missing{$_}, not listed in embed.fnc"; |
94bdecf9 JH |
1698 | } |
1699 | ||
ff5af78d KW |
1700 | # List of funcs in the public API that aren't also marked as core-only, |
1701 | # experimental nor deprecated. | |
b87d9527 KW |
1702 | my @missing_api = grep $funcflags{$_}{flags} =~ /A/ |
1703 | && $funcflags{$_}{flags} !~ /[xD]/ | |
1704 | && !$docs{api}{$_}, keys %funcflags; | |
00d68f0d | 1705 | push @missing_api, keys %missing_macros; |
a026e430 | 1706 | |
ea7c1d7a KW |
1707 | my @other_places = ( qw(perlclib perlxs), keys %described_elsewhere ); |
1708 | my $places_other_than_intern = join ", ", | |
1709 | map { "L<$_>" } sort dictionary_order 'perlapi', @other_places; | |
1710 | my $places_other_than_api = join ", ", | |
1711 | map { "L<$_>" } sort dictionary_order 'perlintern', @other_places; | |
a026e430 | 1712 | |
00d68f0d | 1713 | # The S< > makes things less densely packed, hence more readable |
02c5183e KW |
1714 | my $has_defs_text .= join ",S< > ", map { "C<$_>" } sort dictionary_order @has_defs; |
1715 | my $has_r_defs_text .= join ",S< > ", map { "C<$_>" } sort dictionary_order @has_r_defs; | |
3951f999 KW |
1716 | $valid_sections{$genconfig_scn}{footer} =~ s/__HAS_LIST__/$has_defs_text/; |
1717 | $valid_sections{$genconfig_scn}{footer} =~ s/__HAS_R_LIST__/$has_r_defs_text/; | |
00d68f0d | 1718 | |
02c5183e | 1719 | my $include_defs_text .= join ",S< > ", map { "C<$_>" } sort dictionary_order @include_defs; |
3951f999 | 1720 | $valid_sections{$genconfig_scn}{footer} =~ s/__INCLUDE_LIST__/$include_defs_text/; |
00d68f0d | 1721 | |
55d5a9fe KW |
1722 | my $section_list = join "\n\n", map { "=item L</$_>" } |
1723 | sort(dictionary_order keys %valid_sections), | |
1724 | $undocumented_scn; # Keep last | |
7260d4ba | 1725 | |
b87d9527 | 1726 | output('perlapi', <<"_EOB_", $docs{api}, \@missing_api, <<"_EOE_"); |
6a4c4cd4 DM |
1727 | |=encoding UTF-8 |
1728 | | | |
1729 | |=head1 NAME | |
1730 | | | |
1731 | |perlapi - autogenerated documentation for the perl public API | |
1732 | | | |
1733 | |=head1 DESCRIPTION | |
1734 | |X<Perl API> X<API> X<api> | |
1735 | | | |
b87d9527 KW |
1736 | |This file contains most of the documentation of the perl public API, as |
1737 | |generated by F<embed.pl>. Specifically, it is a listing of functions, | |
a026e430 KW |
1738 | |macros, flags, and variables that may be used by extension writers. Besides |
1739 | |L<perlintern> and F<config.h>, some items are listed here as being actually | |
1740 | |documented in another pod. | |
b87d9527 | 1741 | | |
55d5a9fe | 1742 | |L<At the end|/$undocumented_scn> is a list of functions which have yet |
b87d9527 KW |
1743 | |to be documented. Patches welcome! The interfaces of these are subject to |
1744 | |change without notice. | |
1745 | | | |
6927cd44 KW |
1746 | |Some of the functions documented here are consolidated so that a single entry |
1747 | |serves for multiple functions which all do basically the same thing, but have | |
1748 | |some slight differences. For example, one form might process magic, while | |
1749 | |another doesn't. The name of each variation is listed at the top of the | |
1750 | |single entry. But if all have the same signature (arguments and return type) | |
1751 | |except for their names, only the usage for the base form is shown. If any | |
1752 | |one of the forms has a different signature (such as returning C<const> or | |
1753 | |not) every function's signature is explicitly displayed. | |
7260d4ba | 1754 | | |
a026e430 KW |
1755 | |Anything not listed here or in the other mentioned pods is not part of the |
1756 | |public API, and should not be used by extension writers at all. For these | |
1757 | |reasons, blindly using functions listed in F<proto.h> is to be avoided when | |
1758 | |writing extensions. | |
6a4c4cd4 DM |
1759 | | |
1760 | |In Perl, unlike C, a string of characters may generally contain embedded | |
1761 | |C<NUL> characters. Sometimes in the documentation a Perl string is referred | |
1762 | |to as a "buffer" to distinguish it from a C string, but sometimes they are | |
1763 | |both just referred to as strings. | |
1764 | | | |
1765 | |Note that all Perl API global variables must be referenced with the C<PL_> | |
1766 | |prefix. Again, those not listed here are not to be used by extension writers, | |
1767 | |and can be changed or removed without notice; same with macros. | |
1768 | |Some macros are provided for compatibility with the older, | |
1769 | |unadorned names, but this support may be disabled in a future release. | |
1770 | | | |
1771 | |Perl was originally written to handle US-ASCII only (that is characters | |
1772 | |whose ordinal numbers are in the range 0 - 127). | |
1773 | |And documentation and comments may still use the term ASCII, when | |
1774 | |sometimes in fact the entire range from 0 - 255 is meant. | |
1775 | | | |
1776 | |The non-ASCII characters below 256 can have various meanings, depending on | |
1777 | |various things. (See, most notably, L<perllocale>.) But usually the whole | |
1778 | |range can be referred to as ISO-8859-1. Often, the term "Latin-1" (or | |
1779 | |"Latin1") is used as an equivalent for ISO-8859-1. But some people treat | |
1780 | |"Latin1" as referring just to the characters in the range 128 through 255, or | |
2de859ce | 1781 | |sometimes from 160 through 255. |
6a4c4cd4 DM |
1782 | |This documentation uses "Latin1" and "Latin-1" to refer to all 256 characters. |
1783 | | | |
1784 | |Note that Perl can be compiled and run under either ASCII or EBCDIC (See | |
1785 | |L<perlebcdic>). Most of the documentation (and even comments in the code) | |
1786 | |ignore the EBCDIC possibility. | |
1787 | |For almost all purposes the differences are transparent. | |
1788 | |As an example, under EBCDIC, | |
1789 | |instead of UTF-8, UTF-EBCDIC is used to encode Unicode strings, and so | |
1790 | |whenever this documentation refers to C<utf8> | |
1791 | |(and variants of that name, including in function names), | |
1792 | |it also (essentially transparently) means C<UTF-EBCDIC>. | |
1793 | |But the ordinals of characters differ between ASCII, EBCDIC, and | |
1794 | |the UTF- encodings, and a string encoded in UTF-EBCDIC may occupy a different | |
1795 | |number of bytes than in UTF-8. | |
1796 | | | |
6927cd44 KW |
1797 | |The organization of this document is tentative and subject to change. |
1798 | |Suggestions and patches welcome | |
1799 | |L<perl5-porters\@perl.org|mailto:perl5-porters\@perl.org>. | |
1800 | | | |
1801 | |The sections in this document currently are | |
1802 | | | |
1803 | |=over | |
1804 | ||
1805 | |$section_list | |
1806 | | | |
1807 | |=back | |
1808 | | | |
6a4c4cd4 | 1809 | |The listing below is alphabetical, case insensitive. |
94bdecf9 | 1810 | _EOB_ |
6a4c4cd4 DM |
1811 | |=head1 AUTHORS |
1812 | | | |
1813 | |Until May 1997, this document was maintained by Jeff Okamoto | |
7b1f0a98 | 1814 | |<okamoto\@corp.hp.com>. It is now maintained as part of Perl itself. |
6a4c4cd4 DM |
1815 | | |
1816 | |With lots of help and suggestions from Dean Roehrich, Malcolm Beattie, | |
1817 | |Andreas Koenig, Paul Hudson, Ilya Zakharevich, Paul Marquess, Neil | |
1818 | |Bowers, Matthew Green, Tim Bunce, Spider Boardman, Ulrich Pfeifer, | |
1819 | |Stephen McCamant, and Gurusamy Sarathy. | |
1820 | | | |
7b1f0a98 | 1821 | |API Listing originally by Dean Roehrich <roehrich\@cray.com>. |
6a4c4cd4 DM |
1822 | | |
1823 | |Updated to be autogenerated from comments in the source by Benjamin Stuhl. | |
1824 | | | |
1825 | |=head1 SEE ALSO | |
1826 | | | |
ea7c1d7a | 1827 | |F<config.h>, $places_other_than_api |
94bdecf9 JH |
1828 | _EOE_ |
1829 | ||
79fc8511 FC |
1830 | # List of non-static internal functions |
1831 | my @missing_guts = | |
9f589e47 | 1832 | grep $funcflags{$_}{flags} !~ /[AS]/ && !$docs{guts}{$_}, keys %funcflags; |
5a0155e6 | 1833 | |
7b1f0a98 | 1834 | output('perlintern', <<'_EOB_', $docs{guts}, \@missing_guts, <<"_EOE_"); |
6a4c4cd4 DM |
1835 | |=head1 NAME |
1836 | | | |
1837 | |perlintern - autogenerated documentation of purely B<internal> | |
20046047 | 1838 | |Perl functions |
6a4c4cd4 DM |
1839 | | |
1840 | |=head1 DESCRIPTION | |
1841 | |X<internal Perl functions> X<interpreter functions> | |
1842 | | | |
1843 | |This file is the autogenerated documentation of functions in the | |
1844 | |Perl interpreter that are documented using Perl's internal documentation | |
1845 | |format but are not marked as part of the Perl API. In other words, | |
1846 | |B<they are not for use in extensions>! | |
5781dcac KW |
1847 | |
1848 | |It has the same sections as L<perlapi>, though some may be empty. | |
6a4c4cd4 | 1849 | | |
7b1f0a98 | 1850 | _EOB_ |
6a4c4cd4 DM |
1851 | | |
1852 | |=head1 AUTHORS | |
1853 | | | |
1854 | |The autodocumentation system was originally added to the Perl core by | |
1855 | |Benjamin Stuhl. Documentation is by whoever was kind enough to | |
1856 | |document their functions. | |
1857 | | | |
1858 | |=head1 SEE ALSO | |
1859 | | | |
ea7c1d7a | 1860 | |F<config.h>, $places_other_than_intern |
7b1f0a98 | 1861 | _EOE_ |