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54310121 | 1 | package Pod::Html; |
2 | ||
3 | use Pod::Functions; | |
4 | use Getopt::Long; # package for handling command-line parameters | |
5 | require Exporter; | |
7b8d334a GS |
6 | use vars qw($VERSION); |
7 | $VERSION = 1.01; | |
54310121 | 8 | @ISA = Exporter; |
9 | @EXPORT = qw(pod2html htmlify); | |
10 | use Cwd; | |
11 | ||
12 | use Carp; | |
13 | ||
14 | use strict; | |
15 | ||
7b8d334a GS |
16 | use Config; |
17 | ||
54310121 | 18 | =head1 NAME |
19 | ||
7b8d334a | 20 | Pod::Html - module to convert pod files to HTML |
54310121 | 21 | |
22 | =head1 SYNOPSIS | |
23 | ||
7b8d334a | 24 | use Pod::Html; |
54310121 | 25 | pod2html([options]); |
26 | ||
27 | =head1 DESCRIPTION | |
28 | ||
29 | Converts files from pod format (see L<perlpod>) to HTML format. It | |
30 | can automatically generate indexes and cross-references, and it keeps | |
31 | a cache of things it knows how to cross-reference. | |
32 | ||
33 | =head1 ARGUMENTS | |
34 | ||
35 | Pod::Html takes the following arguments: | |
36 | ||
37 | =over 4 | |
38 | ||
39 | =item help | |
40 | ||
41 | --help | |
42 | ||
43 | Displays the usage message. | |
44 | ||
45 | =item htmlroot | |
46 | ||
47 | --htmlroot=name | |
48 | ||
49 | Sets the base URL for the HTML files. When cross-references are made, | |
50 | the HTML root is prepended to the URL. | |
51 | ||
52 | =item infile | |
53 | ||
54 | --infile=name | |
55 | ||
56 | Specify the pod file to convert. Input is taken from STDIN if no | |
57 | infile is specified. | |
58 | ||
59 | =item outfile | |
60 | ||
61 | --outfile=name | |
62 | ||
63 | Specify the HTML file to create. Output goes to STDOUT if no outfile | |
64 | is specified. | |
65 | ||
66 | =item podroot | |
67 | ||
68 | --podroot=name | |
69 | ||
70 | Specify the base directory for finding library pods. | |
71 | ||
72 | =item podpath | |
73 | ||
74 | --podpath=name:...:name | |
75 | ||
76 | Specify which subdirectories of the podroot contain pod files whose | |
77 | HTML converted forms can be linked-to in cross-references. | |
78 | ||
79 | =item libpods | |
80 | ||
81 | --libpods=name:...:name | |
82 | ||
83 | List of page names (eg, "perlfunc") which contain linkable C<=item>s. | |
84 | ||
85 | =item netscape | |
86 | ||
87 | --netscape | |
88 | ||
89 | Use Netscape HTML directives when applicable. | |
90 | ||
91 | =item nonetscape | |
92 | ||
93 | --nonetscape | |
94 | ||
95 | Do not use Netscape HTML directives (default). | |
96 | ||
97 | =item index | |
98 | ||
99 | --index | |
100 | ||
101 | Generate an index at the top of the HTML file (default behaviour). | |
102 | ||
103 | =item noindex | |
104 | ||
105 | --noindex | |
106 | ||
107 | Do not generate an index at the top of the HTML file. | |
108 | ||
109 | ||
110 | =item recurse | |
111 | ||
112 | --recurse | |
113 | ||
114 | Recurse into subdirectories specified in podpath (default behaviour). | |
115 | ||
116 | =item norecurse | |
117 | ||
118 | --norecurse | |
119 | ||
120 | Do not recurse into subdirectories specified in podpath. | |
121 | ||
122 | =item title | |
123 | ||
124 | --title=title | |
125 | ||
126 | Specify the title of the resulting HTML file. | |
127 | ||
128 | =item verbose | |
129 | ||
130 | --verbose | |
131 | ||
132 | Display progress messages. | |
133 | ||
134 | =back | |
135 | ||
136 | =head1 EXAMPLE | |
137 | ||
138 | pod2html("pod2html", | |
139 | "--podpath=lib:ext:pod:vms", | |
140 | "--podroot=/usr/src/perl", | |
141 | "--htmlroot=/perl/nmanual", | |
142 | "--libpods=perlfunc:perlguts:perlvar:perlrun:perlop", | |
143 | "--recurse", | |
144 | "--infile=foo.pod", | |
145 | "--outfile=/perl/nmanual/foo.html"); | |
146 | ||
147 | =head1 AUTHOR | |
148 | ||
149 | Tom Christiansen, E<lt>tchrist@perl.comE<gt>. | |
150 | ||
151 | =head1 BUGS | |
152 | ||
153 | Has trouble with C<> etc in = commands. | |
154 | ||
155 | =head1 SEE ALSO | |
156 | ||
157 | L<perlpod> | |
158 | ||
159 | =head1 COPYRIGHT | |
160 | ||
161 | This program is distributed under the Artistic License. | |
162 | ||
163 | =cut | |
164 | ||
165 | my $dircache = "pod2html-dircache"; | |
166 | my $itemcache = "pod2html-itemcache"; | |
167 | ||
168 | my @begin_stack = (); # begin/end stack | |
169 | ||
170 | my @libpods = (); # files to search for links from C<> directives | |
171 | my $htmlroot = "/"; # http-server base directory from which all | |
172 | # relative paths in $podpath stem. | |
173 | my $htmlfile = ""; # write to stdout by default | |
174 | my $podfile = ""; # read from stdin by default | |
175 | my @podpath = (); # list of directories containing library pods. | |
176 | my $podroot = "."; # filesystem base directory from which all | |
177 | # relative paths in $podpath stem. | |
178 | my $recurse = 1; # recurse on subdirectories in $podpath. | |
179 | my $verbose = 0; # not verbose by default | |
180 | my $doindex = 1; # non-zero if we should generate an index | |
181 | my $listlevel = 0; # current list depth | |
182 | my @listitem = (); # stack of HTML commands to use when a =item is | |
183 | # encountered. the top of the stack is the | |
184 | # current list. | |
185 | my @listdata = (); # similar to @listitem, but for the text after | |
186 | # an =item | |
187 | my @listend = (); # similar to @listitem, but the text to use to | |
188 | # end the list. | |
189 | my $ignore = 1; # whether or not to format text. we don't | |
190 | # format text until we hit our first pod | |
191 | # directive. | |
192 | ||
193 | my %items_named = (); # for the multiples of the same item in perlfunc | |
194 | my @items_seen = (); | |
195 | my $netscape = 0; # whether or not to use netscape directives. | |
196 | my $title; # title to give the pod(s) | |
197 | my $top = 1; # true if we are at the top of the doc. used | |
198 | # to prevent the first <HR> directive. | |
199 | my $paragraph; # which paragraph we're processing (used | |
200 | # for error messages) | |
201 | my %pages = (); # associative array used to find the location | |
202 | # of pages referenced by L<> links. | |
203 | my %sections = (); # sections within this page | |
204 | my %items = (); # associative array used to find the location | |
205 | # of =item directives referenced by C<> links | |
39e571d4 LM |
206 | my $Is83; # is dos with short filenames (8.3) |
207 | ||
54310121 | 208 | sub init_globals { |
209 | $dircache = "pod2html-dircache"; | |
210 | $itemcache = "pod2html-itemcache"; | |
211 | ||
212 | @begin_stack = (); # begin/end stack | |
213 | ||
214 | @libpods = (); # files to search for links from C<> directives | |
215 | $htmlroot = "/"; # http-server base directory from which all | |
216 | # relative paths in $podpath stem. | |
217 | $htmlfile = ""; # write to stdout by default | |
218 | $podfile = ""; # read from stdin by default | |
219 | @podpath = (); # list of directories containing library pods. | |
220 | $podroot = "."; # filesystem base directory from which all | |
221 | # relative paths in $podpath stem. | |
222 | $recurse = 1; # recurse on subdirectories in $podpath. | |
223 | $verbose = 0; # not verbose by default | |
224 | $doindex = 1; # non-zero if we should generate an index | |
225 | $listlevel = 0; # current list depth | |
226 | @listitem = (); # stack of HTML commands to use when a =item is | |
227 | # encountered. the top of the stack is the | |
228 | # current list. | |
229 | @listdata = (); # similar to @listitem, but for the text after | |
230 | # an =item | |
231 | @listend = (); # similar to @listitem, but the text to use to | |
232 | # end the list. | |
233 | $ignore = 1; # whether or not to format text. we don't | |
234 | # format text until we hit our first pod | |
235 | # directive. | |
236 | ||
237 | @items_seen = (); | |
238 | %items_named = (); | |
239 | $netscape = 0; # whether or not to use netscape directives. | |
240 | $title = ''; # title to give the pod(s) | |
241 | $top = 1; # true if we are at the top of the doc. used | |
242 | # to prevent the first <HR> directive. | |
243 | $paragraph = ''; # which paragraph we're processing (used | |
244 | # for error messages) | |
54310121 | 245 | %sections = (); # sections within this page |
3e3baf6d TB |
246 | |
247 | # These are not reinitialised here but are kept as a cache. | |
248 | # See get_cache and related cache management code. | |
249 | #%pages = (); # associative array used to find the location | |
250 | # of pages referenced by L<> links. | |
251 | #%items = (); # associative array used to find the location | |
54310121 | 252 | # of =item directives referenced by C<> links |
39e571d4 | 253 | $Is83=$^O eq 'dos'; |
54310121 | 254 | } |
255 | ||
256 | sub pod2html { | |
257 | local(@ARGV) = @_; | |
258 | local($/); | |
259 | local $_; | |
260 | ||
261 | init_globals(); | |
262 | ||
39e571d4 LM |
263 | $Is83 = 0 if (defined (&Dos::UseLFN) && Dos::UseLFN()); |
264 | ||
54310121 | 265 | # cache of %pages and %items from last time we ran pod2html |
54310121 | 266 | |
267 | #undef $opt_help if defined $opt_help; | |
268 | ||
269 | # parse the command-line parameters | |
270 | parse_command_line(); | |
271 | ||
272 | # set some variables to their default values if necessary | |
273 | local *POD; | |
274 | unless (@ARGV && $ARGV[0]) { | |
275 | $podfile = "-" unless $podfile; # stdin | |
276 | open(POD, "<$podfile") | |
277 | || die "$0: cannot open $podfile file for input: $!\n"; | |
278 | } else { | |
279 | $podfile = $ARGV[0]; # XXX: might be more filenames | |
280 | *POD = *ARGV; | |
281 | } | |
282 | $htmlfile = "-" unless $htmlfile; # stdout | |
283 | $htmlroot = "" if $htmlroot eq "/"; # so we don't get a // | |
284 | ||
285 | # read the pod a paragraph at a time | |
286 | warn "Scanning for sections in input file(s)\n" if $verbose; | |
287 | $/ = ""; | |
288 | my @poddata = <POD>; | |
289 | close(POD); | |
290 | ||
291 | # scan the pod for =head[1-6] directives and build an index | |
292 | my $index = scan_headings(\%sections, @poddata); | |
293 | ||
3e3baf6d TB |
294 | unless($index) { |
295 | warn "No pod in $podfile\n" if $verbose; | |
296 | return; | |
297 | } | |
298 | ||
54310121 | 299 | # open the output file |
300 | open(HTML, ">$htmlfile") | |
301 | || die "$0: cannot open $htmlfile file for output: $!\n"; | |
302 | ||
303 | # put a title in the HTML file | |
304 | $title = ''; | |
305 | TITLE_SEARCH: { | |
306 | for (my $i = 0; $i < @poddata; $i++) { | |
307 | if ($poddata[$i] =~ /^=head1\s*NAME\b/m) { | |
308 | for my $para ( @poddata[$i, $i+1] ) { | |
7b8d334a | 309 | last TITLE_SEARCH if ($title) = $para =~ /(\S+\s+-+.*\S)/s; |
54310121 | 310 | } |
311 | } | |
312 | ||
313 | } | |
314 | } | |
3e3baf6d TB |
315 | if (!$title and $podfile =~ /\.pod$/) { |
316 | # probably a split pod so take first =head[12] as title | |
317 | for (my $i = 0; $i < @poddata; $i++) { | |
318 | last if ($title) = $poddata[$i] =~ /^=head[12]\s*(.*)/; | |
319 | } | |
320 | warn "adopted '$title' as title for $podfile\n" | |
321 | if $verbose and $title; | |
322 | } | |
7b8d334a GS |
323 | if ($title) { |
324 | $title =~ s/\s*\(.*\)//; | |
325 | } else { | |
3e3baf6d | 326 | warn "$0: no title for $podfile"; |
54310121 | 327 | $podfile =~ /^(.*)(\.[^.\/]+)?$/; |
328 | $title = ($podfile eq "-" ? 'No Title' : $1); | |
3e3baf6d | 329 | warn "using $title" if $verbose; |
54310121 | 330 | } |
331 | print HTML <<END_OF_HEAD; | |
7b8d334a GS |
332 | <HTML> |
333 | <HEAD> | |
334 | <TITLE>$title</TITLE> | |
335 | <LINK REV="made" HREF="mailto:$Config{perladmin}"> | |
336 | </HEAD> | |
54310121 | 337 | |
7b8d334a | 338 | <BODY> |
54310121 | 339 | |
340 | END_OF_HEAD | |
341 | ||
3e3baf6d TB |
342 | # load/reload/validate/cache %pages and %items |
343 | get_cache($dircache, $itemcache, \@podpath, $podroot, $recurse); | |
54310121 | 344 | |
345 | # scan the pod for =item directives | |
346 | scan_items("", \%items, @poddata); | |
347 | ||
348 | # put an index at the top of the file. note, if $doindex is 0 we | |
349 | # still generate an index, but surround it with an html comment. | |
350 | # that way some other program can extract it if desired. | |
351 | $index =~ s/--+/-/g; | |
352 | print HTML "<!-- INDEX BEGIN -->\n"; | |
353 | print HTML "<!--\n" unless $doindex; | |
354 | print HTML $index; | |
355 | print HTML "-->\n" unless $doindex; | |
356 | print HTML "<!-- INDEX END -->\n\n"; | |
357 | print HTML "<HR>\n" if $doindex; | |
358 | ||
359 | # now convert this file | |
360 | warn "Converting input file\n" if $verbose; | |
361 | foreach my $i (0..$#poddata) { | |
362 | $_ = $poddata[$i]; | |
363 | $paragraph = $i+1; | |
364 | if (/^(=.*)/s) { # is it a pod directive? | |
365 | $ignore = 0; | |
366 | $_ = $1; | |
367 | if (/^=begin\s+(\S+)\s*(.*)/si) {# =begin | |
368 | process_begin($1, $2); | |
369 | } elsif (/^=end\s+(\S+)\s*(.*)/si) {# =end | |
370 | process_end($1, $2); | |
371 | } elsif (/^=cut/) { # =cut | |
372 | process_cut(); | |
373 | } elsif (/^=pod/) { # =pod | |
374 | process_pod(); | |
375 | } else { | |
376 | next if @begin_stack && $begin_stack[-1] ne 'html'; | |
377 | ||
7b8d334a | 378 | if (/^=(head[1-6])\s+(.*\S)/s) { # =head[1-6] heading |
54310121 | 379 | process_head($1, $2); |
7b8d334a | 380 | } elsif (/^=item\s*(.*\S)/sm) { # =item text |
54310121 | 381 | process_item($1); |
382 | } elsif (/^=over\s*(.*)/) { # =over N | |
383 | process_over(); | |
384 | } elsif (/^=back/) { # =back | |
385 | process_back(); | |
386 | } elsif (/^=for\s+(\S+)\s+(.*)/si) {# =for | |
387 | process_for($1,$2); | |
388 | } else { | |
389 | /^=(\S*)\s*/; | |
390 | warn "$0: $podfile: unknown pod directive '$1' in " | |
391 | . "paragraph $paragraph. ignoring.\n"; | |
392 | } | |
393 | } | |
394 | $top = 0; | |
395 | } | |
396 | else { | |
397 | next if $ignore; | |
398 | next if @begin_stack && $begin_stack[-1] ne 'html'; | |
399 | my $text = $_; | |
400 | process_text(\$text, 1); | |
7b8d334a | 401 | print HTML "<P>\n$text"; |
54310121 | 402 | } |
403 | } | |
404 | ||
405 | # finish off any pending directives | |
406 | finish_list(); | |
407 | print HTML <<END_OF_TAIL; | |
7b8d334a | 408 | </BODY> |
54310121 | 409 | |
7b8d334a | 410 | </HTML> |
54310121 | 411 | END_OF_TAIL |
412 | ||
413 | # close the html file | |
414 | close(HTML); | |
415 | ||
416 | warn "Finished\n" if $verbose; | |
417 | } | |
418 | ||
419 | ############################################################################## | |
420 | ||
421 | my $usage; # see below | |
422 | sub usage { | |
423 | my $podfile = shift; | |
424 | warn "$0: $podfile: @_\n" if @_; | |
425 | die $usage; | |
426 | } | |
427 | ||
428 | $usage =<<END_OF_USAGE; | |
429 | Usage: $0 --help --htmlroot=<name> --infile=<name> --outfile=<name> | |
430 | --podpath=<name>:...:<name> --podroot=<name> | |
431 | --libpods=<name>:...:<name> --recurse --verbose --index | |
432 | --netscape --norecurse --noindex | |
433 | ||
434 | --flush - flushes the item and directory caches. | |
435 | --help - prints this message. | |
436 | --htmlroot - http-server base directory from which all relative paths | |
437 | in podpath stem (default is /). | |
438 | --index - generate an index at the top of the resulting html | |
439 | (default). | |
440 | --infile - filename for the pod to convert (input taken from stdin | |
441 | by default). | |
442 | --libpods - colon-separated list of pages to search for =item pod | |
443 | directives in as targets of C<> and implicit links (empty | |
444 | by default). note, these are not filenames, but rather | |
445 | page names like those that appear in L<> links. | |
446 | --netscape - will use netscape html directives when applicable. | |
447 | --nonetscape - will not use netscape directives (default). | |
448 | --outfile - filename for the resulting html file (output sent to | |
449 | stdout by default). | |
450 | --podpath - colon-separated list of directories containing library | |
451 | pods. empty by default. | |
452 | --podroot - filesystem base directory from which all relative paths | |
453 | in podpath stem (default is .). | |
454 | --noindex - don't generate an index at the top of the resulting html. | |
455 | --norecurse - don't recurse on those subdirectories listed in podpath. | |
456 | --recurse - recurse on those subdirectories listed in podpath | |
457 | (default behavior). | |
458 | --title - title that will appear in resulting html file. | |
459 | --verbose - self-explanatory | |
460 | ||
461 | END_OF_USAGE | |
462 | ||
463 | sub parse_command_line { | |
464 | my ($opt_flush,$opt_help,$opt_htmlroot,$opt_index,$opt_infile,$opt_libpods,$opt_netscape,$opt_outfile,$opt_podpath,$opt_podroot,$opt_norecurse,$opt_recurse,$opt_title,$opt_verbose); | |
465 | my $result = GetOptions( | |
466 | 'flush' => \$opt_flush, | |
467 | 'help' => \$opt_help, | |
468 | 'htmlroot=s' => \$opt_htmlroot, | |
469 | 'index!' => \$opt_index, | |
470 | 'infile=s' => \$opt_infile, | |
471 | 'libpods=s' => \$opt_libpods, | |
472 | 'netscape!' => \$opt_netscape, | |
473 | 'outfile=s' => \$opt_outfile, | |
474 | 'podpath=s' => \$opt_podpath, | |
475 | 'podroot=s' => \$opt_podroot, | |
476 | 'norecurse' => \$opt_norecurse, | |
477 | 'recurse!' => \$opt_recurse, | |
478 | 'title=s' => \$opt_title, | |
479 | 'verbose' => \$opt_verbose, | |
480 | ); | |
481 | usage("-", "invalid parameters") if not $result; | |
482 | ||
483 | usage("-") if defined $opt_help; # see if the user asked for help | |
484 | $opt_help = ""; # just to make -w shut-up. | |
485 | ||
486 | $podfile = $opt_infile if defined $opt_infile; | |
487 | $htmlfile = $opt_outfile if defined $opt_outfile; | |
488 | ||
489 | @podpath = split(":", $opt_podpath) if defined $opt_podpath; | |
490 | @libpods = split(":", $opt_libpods) if defined $opt_libpods; | |
491 | ||
492 | warn "Flushing item and directory caches\n" | |
493 | if $opt_verbose && defined $opt_flush; | |
494 | unlink($dircache, $itemcache) if defined $opt_flush; | |
495 | ||
496 | $htmlroot = $opt_htmlroot if defined $opt_htmlroot; | |
497 | $podroot = $opt_podroot if defined $opt_podroot; | |
498 | ||
499 | $doindex = $opt_index if defined $opt_index; | |
500 | $recurse = $opt_recurse if defined $opt_recurse; | |
501 | $title = $opt_title if defined $opt_title; | |
502 | $verbose = defined $opt_verbose ? 1 : 0; | |
503 | $netscape = $opt_netscape if defined $opt_netscape; | |
504 | } | |
505 | ||
3e3baf6d TB |
506 | |
507 | my $saved_cache_key; | |
508 | ||
509 | sub get_cache { | |
510 | my($dircache, $itemcache, $podpath, $podroot, $recurse) = @_; | |
511 | my @cache_key_args = @_; | |
512 | ||
513 | # A first-level cache: | |
514 | # Don't bother reading the cache files if they still apply | |
515 | # and haven't changed since we last read them. | |
516 | ||
517 | my $this_cache_key = cache_key(@cache_key_args); | |
518 | ||
519 | return if $saved_cache_key and $this_cache_key eq $saved_cache_key; | |
520 | ||
521 | # load the cache of %pages and %items if possible. $tests will be | |
522 | # non-zero if successful. | |
523 | my $tests = 0; | |
524 | if (-f $dircache && -f $itemcache) { | |
525 | warn "scanning for item cache\n" if $verbose; | |
526 | $tests = load_cache($dircache, $itemcache, $podpath, $podroot); | |
527 | } | |
528 | ||
529 | # if we didn't succeed in loading the cache then we must (re)build | |
530 | # %pages and %items. | |
531 | if (!$tests) { | |
532 | warn "scanning directories in pod-path\n" if $verbose; | |
533 | scan_podpath($podroot, $recurse, 0); | |
534 | } | |
535 | $saved_cache_key = cache_key(@cache_key_args); | |
536 | } | |
537 | ||
538 | sub cache_key { | |
539 | my($dircache, $itemcache, $podpath, $podroot, $recurse) = @_; | |
540 | return join('!', $dircache, $itemcache, $recurse, | |
541 | @$podpath, $podroot, stat($dircache), stat($itemcache)); | |
542 | } | |
543 | ||
54310121 | 544 | # |
3e3baf6d | 545 | # load_cache - tries to find if the caches stored in $dircache and $itemcache |
54310121 | 546 | # are valid caches of %pages and %items. if they are valid then it loads |
547 | # them and returns a non-zero value. | |
548 | # | |
3e3baf6d TB |
549 | |
550 | sub load_cache { | |
54310121 | 551 | my($dircache, $itemcache, $podpath, $podroot) = @_; |
552 | my($tests); | |
553 | local $_; | |
554 | ||
555 | $tests = 0; | |
556 | ||
557 | open(CACHE, "<$itemcache") || | |
558 | die "$0: error opening $itemcache for reading: $!\n"; | |
559 | $/ = "\n"; | |
560 | ||
561 | # is it the same podpath? | |
562 | $_ = <CACHE>; | |
563 | chomp($_); | |
3e3baf6d | 564 | $tests++ if (join(":", @$podpath) eq $_); |
54310121 | 565 | |
566 | # is it the same podroot? | |
567 | $_ = <CACHE>; | |
568 | chomp($_); | |
569 | $tests++ if ($podroot eq $_); | |
570 | ||
571 | # load the cache if its good | |
572 | if ($tests != 2) { | |
573 | close(CACHE); | |
54310121 | 574 | return 0; |
575 | } | |
576 | ||
577 | warn "loading item cache\n" if $verbose; | |
578 | while (<CACHE>) { | |
579 | /(.*?) (.*)$/; | |
580 | $items{$1} = $2; | |
581 | } | |
582 | close(CACHE); | |
583 | ||
584 | warn "scanning for directory cache\n" if $verbose; | |
585 | open(CACHE, "<$dircache") || | |
586 | die "$0: error opening $dircache for reading: $!\n"; | |
587 | $/ = "\n"; | |
588 | $tests = 0; | |
589 | ||
590 | # is it the same podpath? | |
591 | $_ = <CACHE>; | |
592 | chomp($_); | |
3e3baf6d | 593 | $tests++ if (join(":", @$podpath) eq $_); |
54310121 | 594 | |
595 | # is it the same podroot? | |
596 | $_ = <CACHE>; | |
597 | chomp($_); | |
598 | $tests++ if ($podroot eq $_); | |
599 | ||
600 | # load the cache if its good | |
601 | if ($tests != 2) { | |
602 | close(CACHE); | |
54310121 | 603 | return 0; |
604 | } | |
605 | ||
606 | warn "loading directory cache\n" if $verbose; | |
607 | while (<CACHE>) { | |
608 | /(.*?) (.*)$/; | |
609 | $pages{$1} = $2; | |
610 | } | |
611 | ||
612 | close(CACHE); | |
613 | ||
614 | return 1; | |
615 | } | |
616 | ||
617 | # | |
618 | # scan_podpath - scans the directories specified in @podpath for directories, | |
619 | # .pod files, and .pm files. it also scans the pod files specified in | |
620 | # @libpods for =item directives. | |
621 | # | |
622 | sub scan_podpath { | |
3e3baf6d | 623 | my($podroot, $recurse, $append) = @_; |
54310121 | 624 | my($pwd, $dir); |
625 | my($libpod, $dirname, $pod, @files, @poddata); | |
626 | ||
3e3baf6d TB |
627 | unless($append) { |
628 | %items = (); | |
629 | %pages = (); | |
630 | } | |
631 | ||
54310121 | 632 | # scan each directory listed in @podpath |
633 | $pwd = getcwd(); | |
634 | chdir($podroot) | |
635 | || die "$0: error changing to directory $podroot: $!\n"; | |
636 | foreach $dir (@podpath) { | |
637 | scan_dir($dir, $recurse); | |
638 | } | |
639 | ||
640 | # scan the pods listed in @libpods for =item directives | |
641 | foreach $libpod (@libpods) { | |
642 | # if the page isn't defined then we won't know where to find it | |
643 | # on the system. | |
644 | next unless defined $pages{$libpod} && $pages{$libpod}; | |
645 | ||
646 | # if there is a directory then use the .pod and .pm files within it. | |
647 | if ($pages{$libpod} =~ /([^:]*[^(\.pod|\.pm)]):/) { | |
648 | # find all the .pod and .pm files within the directory | |
649 | $dirname = $1; | |
650 | opendir(DIR, $dirname) || | |
651 | die "$0: error opening directory $dirname: $!\n"; | |
652 | @files = grep(/(\.pod|\.pm)$/ && ! -d $_, readdir(DIR)); | |
653 | closedir(DIR); | |
654 | ||
655 | # scan each .pod and .pm file for =item directives | |
656 | foreach $pod (@files) { | |
657 | open(POD, "<$dirname/$pod") || | |
658 | die "$0: error opening $dirname/$pod for input: $!\n"; | |
659 | @poddata = <POD>; | |
660 | close(POD); | |
661 | ||
662 | scan_items("$dirname/$pod", @poddata); | |
663 | } | |
664 | ||
665 | # use the names of files as =item directives too. | |
666 | foreach $pod (@files) { | |
667 | $pod =~ /^(.*)(\.pod|\.pm)$/; | |
668 | $items{$1} = "$dirname/$1.html" if $1; | |
669 | } | |
670 | } elsif ($pages{$libpod} =~ /([^:]*\.pod):/ || | |
671 | $pages{$libpod} =~ /([^:]*\.pm):/) { | |
672 | # scan the .pod or .pm file for =item directives | |
673 | $pod = $1; | |
674 | open(POD, "<$pod") || | |
675 | die "$0: error opening $pod for input: $!\n"; | |
676 | @poddata = <POD>; | |
677 | close(POD); | |
678 | ||
679 | scan_items("$pod", @poddata); | |
680 | } else { | |
681 | warn "$0: shouldn't be here (line ".__LINE__."\n"; | |
682 | } | |
683 | } | |
684 | @poddata = (); # clean-up a bit | |
685 | ||
686 | chdir($pwd) | |
687 | || die "$0: error changing to directory $pwd: $!\n"; | |
688 | ||
689 | # cache the item list for later use | |
690 | warn "caching items for later use\n" if $verbose; | |
691 | open(CACHE, ">$itemcache") || | |
692 | die "$0: error open $itemcache for writing: $!\n"; | |
693 | ||
694 | print CACHE join(":", @podpath) . "\n$podroot\n"; | |
695 | foreach my $key (keys %items) { | |
696 | print CACHE "$key $items{$key}\n"; | |
697 | } | |
698 | ||
699 | close(CACHE); | |
700 | ||
701 | # cache the directory list for later use | |
702 | warn "caching directories for later use\n" if $verbose; | |
703 | open(CACHE, ">$dircache") || | |
704 | die "$0: error open $dircache for writing: $!\n"; | |
705 | ||
706 | print CACHE join(":", @podpath) . "\n$podroot\n"; | |
707 | foreach my $key (keys %pages) { | |
708 | print CACHE "$key $pages{$key}\n"; | |
709 | } | |
710 | ||
711 | close(CACHE); | |
712 | } | |
713 | ||
714 | # | |
715 | # scan_dir - scans the directory specified in $dir for subdirectories, .pod | |
716 | # files, and .pm files. notes those that it finds. this information will | |
717 | # be used later in order to figure out where the pages specified in L<> | |
718 | # links are on the filesystem. | |
719 | # | |
720 | sub scan_dir { | |
721 | my($dir, $recurse) = @_; | |
722 | my($t, @subdirs, @pods, $pod, $dirname, @dirs); | |
723 | local $_; | |
724 | ||
725 | @subdirs = (); | |
726 | @pods = (); | |
727 | ||
728 | opendir(DIR, $dir) || | |
729 | die "$0: error opening directory $dir: $!\n"; | |
730 | while (defined($_ = readdir(DIR))) { | |
731 | if (-d "$dir/$_" && $_ ne "." && $_ ne "..") { # directory | |
732 | $pages{$_} = "" unless defined $pages{$_}; | |
733 | $pages{$_} .= "$dir/$_:"; | |
734 | push(@subdirs, $_); | |
735 | } elsif (/\.pod$/) { # .pod | |
736 | s/\.pod$//; | |
737 | $pages{$_} = "" unless defined $pages{$_}; | |
738 | $pages{$_} .= "$dir/$_.pod:"; | |
739 | push(@pods, "$dir/$_.pod"); | |
740 | } elsif (/\.pm$/) { # .pm | |
741 | s/\.pm$//; | |
742 | $pages{$_} = "" unless defined $pages{$_}; | |
743 | $pages{$_} .= "$dir/$_.pm:"; | |
744 | push(@pods, "$dir/$_.pm"); | |
745 | } | |
746 | } | |
747 | closedir(DIR); | |
748 | ||
749 | # recurse on the subdirectories if necessary | |
750 | if ($recurse) { | |
751 | foreach my $subdir (@subdirs) { | |
752 | scan_dir("$dir/$subdir", $recurse); | |
753 | } | |
754 | } | |
755 | } | |
756 | ||
757 | # | |
758 | # scan_headings - scan a pod file for head[1-6] tags, note the tags, and | |
759 | # build an index. | |
760 | # | |
761 | sub scan_headings { | |
762 | my($sections, @data) = @_; | |
763 | my($tag, $which_head, $title, $listdepth, $index); | |
764 | ||
be173d55 HM |
765 | # here we need local $ignore = 0; |
766 | # unfortunately, we can't have it, because $ignore is lexical | |
767 | $ignore = 0; | |
768 | ||
54310121 | 769 | $listdepth = 0; |
770 | $index = ""; | |
771 | ||
772 | # scan for =head directives, note their name, and build an index | |
773 | # pointing to each of them. | |
774 | foreach my $line (@data) { | |
bb9460ed | 775 | if ($line =~ /^=(head)([1-6])\s+(.*)/) { |
54310121 | 776 | ($tag,$which_head, $title) = ($1,$2,$3); |
777 | chomp($title); | |
778 | $$sections{htmlify(0,$title)} = 1; | |
779 | ||
102c538a DS |
780 | while ($which_head != $listdepth) { |
781 | if ($which_head > $listdepth) { | |
782 | $index .= "\n" . ("\t" x $listdepth) . "<UL>\n"; | |
783 | $listdepth++; | |
784 | } elsif ($which_head < $listdepth) { | |
785 | $listdepth--; | |
786 | $index .= "\n" . ("\t" x $listdepth) . "</UL>\n"; | |
787 | } | |
54310121 | 788 | } |
54310121 | 789 | |
790 | $index .= "\n" . ("\t" x $listdepth) . "<LI>" . | |
be173d55 | 791 | "<A HREF=\"#" . htmlify(0,$title) . "\">" . |
7b8d334a | 792 | html_escape(process_text(\$title, 0)) . "</A>"; |
54310121 | 793 | } |
794 | } | |
795 | ||
796 | # finish off the lists | |
797 | while ($listdepth--) { | |
798 | $index .= "\n" . ("\t" x $listdepth) . "</UL>\n"; | |
799 | } | |
800 | ||
801 | # get rid of bogus lists | |
802 | $index =~ s,\t*<UL>\s*</UL>\n,,g; | |
803 | ||
bb9460ed | 804 | $ignore = 1; # restore old value; |
be173d55 | 805 | |
54310121 | 806 | return $index; |
807 | } | |
808 | ||
809 | # | |
810 | # scan_items - scans the pod specified by $pod for =item directives. we | |
811 | # will use this information later on in resolving C<> links. | |
812 | # | |
813 | sub scan_items { | |
814 | my($pod, @poddata) = @_; | |
815 | my($i, $item); | |
816 | local $_; | |
817 | ||
818 | $pod =~ s/\.pod$//; | |
819 | $pod .= ".html" if $pod; | |
820 | ||
821 | foreach $i (0..$#poddata) { | |
822 | $_ = $poddata[$i]; | |
823 | ||
824 | # remove any formatting instructions | |
825 | s,[A-Z]<([^<>]*)>,$1,g; | |
826 | ||
827 | # figure out what kind of item it is and get the first word of | |
828 | # it's name. | |
829 | if (/^=item\s+(\w*)\s*.*$/s) { | |
830 | if ($1 eq "*") { # bullet list | |
831 | /\A=item\s+\*\s*(.*?)\s*\Z/s; | |
832 | $item = $1; | |
7b8d334a GS |
833 | } elsif ($1 =~ /^\d+/) { # numbered list |
834 | /\A=item\s+\d+\.?(.*?)\s*\Z/s; | |
54310121 | 835 | $item = $1; |
836 | } else { | |
837 | # /\A=item\s+(.*?)\s*\Z/s; | |
838 | /\A=item\s+(\w*)/s; | |
839 | $item = $1; | |
840 | } | |
841 | ||
842 | $items{$item} = "$pod" if $item; | |
843 | } | |
844 | } | |
845 | } | |
846 | ||
847 | # | |
848 | # process_head - convert a pod head[1-6] tag and convert it to HTML format. | |
849 | # | |
850 | sub process_head { | |
851 | my($tag, $heading) = @_; | |
852 | my $firstword; | |
853 | ||
854 | # figure out the level of the =head | |
855 | $tag =~ /head([1-6])/; | |
856 | my $level = $1; | |
857 | ||
858 | # can't have a heading full of spaces and speechmarks and so on | |
859 | $firstword = $heading; $firstword =~ s/\s*(\w+)\s.*/$1/; | |
860 | ||
861 | print HTML "<P>\n" unless $listlevel; | |
862 | print HTML "<HR>\n" unless $listlevel || $top; | |
863 | print HTML "<H$level>"; # unless $listlevel; | |
864 | #print HTML "<H$level>" unless $listlevel; | |
be173d55 | 865 | my $convert = $heading; process_text(\$convert, 0); |
7b8d334a | 866 | $convert = html_escape($convert); |
54310121 | 867 | print HTML '<A NAME="' . htmlify(0,$heading) . "\">$convert</A>"; |
868 | print HTML "</H$level>"; # unless $listlevel; | |
869 | print HTML "\n"; | |
870 | } | |
871 | ||
872 | # | |
873 | # process_item - convert a pod item tag and convert it to HTML format. | |
874 | # | |
875 | sub process_item { | |
876 | my $text = $_[0]; | |
877 | my($i, $quote, $name); | |
878 | ||
879 | my $need_preamble = 0; | |
880 | my $this_entry; | |
881 | ||
882 | ||
883 | # lots of documents start a list without doing an =over. this is | |
884 | # bad! but, the proper thing to do seems to be to just assume | |
885 | # they did do an =over. so warn them once and then continue. | |
886 | warn "$0: $podfile: unexpected =item directive in paragraph $paragraph. ignoring.\n" | |
887 | unless $listlevel; | |
888 | process_over() unless $listlevel; | |
889 | ||
890 | return unless $listlevel; | |
891 | ||
892 | # remove formatting instructions from the text | |
893 | 1 while $text =~ s/[A-Z]<([^<>]*)>/$1/g; | |
894 | pre_escape(\$text); | |
895 | ||
896 | $need_preamble = $items_seen[$listlevel]++ == 0; | |
897 | ||
898 | # check if this is the first =item after an =over | |
899 | $i = $listlevel - 1; | |
900 | my $need_new = $listlevel >= @listitem; | |
901 | ||
902 | if ($text =~ /\A\*/) { # bullet | |
903 | ||
904 | if ($need_preamble) { | |
905 | push(@listend, "</UL>"); | |
906 | print HTML "<UL>\n"; | |
907 | } | |
908 | ||
7b8d334a GS |
909 | print HTML '<LI>'; |
910 | if ($text =~ /\A\*\s*(.+)\Z/s) { | |
911 | print HTML '<STRONG>'; | |
912 | if ($items_named{$1}++) { | |
913 | print HTML html_escape($1); | |
914 | } else { | |
915 | my $name = 'item_' . htmlify(1,$1); | |
916 | print HTML qq(<A NAME="$name">), html_escape($1), '</A>'; | |
917 | } | |
918 | print HTML '</STRONG>'; | |
919 | } | |
54310121 | 920 | |
7b8d334a | 921 | } elsif ($text =~ /\A[\d#]+/) { # numbered list |
54310121 | 922 | |
923 | if ($need_preamble) { | |
924 | push(@listend, "</OL>"); | |
925 | print HTML "<OL>\n"; | |
926 | } | |
927 | ||
7b8d334a GS |
928 | print HTML '<LI>'; |
929 | if ($text =~ /\A\d+\.?\s*(.+)\Z/s) { | |
930 | print HTML '<STRONG>'; | |
931 | if ($items_named{$1}++) { | |
932 | print HTML html_escape($1); | |
933 | } else { | |
934 | my $name = 'item_' . htmlify(0,$1); | |
935 | print HTML qq(<A NAME="$name">), html_escape($1), '</A>'; | |
936 | } | |
937 | print HTML '</STRONG>'; | |
938 | } | |
54310121 | 939 | |
940 | } else { # all others | |
941 | ||
942 | if ($need_preamble) { | |
943 | push(@listend, '</DL>'); | |
944 | print HTML "<DL>\n"; | |
945 | } | |
946 | ||
7b8d334a GS |
947 | print HTML '<DT>'; |
948 | if ($text =~ /(\S+)/) { | |
949 | print HTML '<STRONG>'; | |
950 | if ($items_named{$1}++) { | |
951 | print HTML html_escape($text); | |
952 | } else { | |
953 | my $name = 'item_' . htmlify(1,$text); | |
954 | print HTML qq(<A NAME="$name">), html_escape($text), '</A>'; | |
955 | } | |
956 | print HTML '</STRONG>'; | |
957 | } | |
54310121 | 958 | print HTML '<DD>'; |
959 | } | |
960 | ||
961 | print HTML "\n"; | |
962 | } | |
963 | ||
964 | # | |
965 | # process_over - process a pod over tag and start a corresponding HTML | |
966 | # list. | |
967 | # | |
968 | sub process_over { | |
969 | # start a new list | |
970 | $listlevel++; | |
971 | } | |
972 | ||
973 | # | |
974 | # process_back - process a pod back tag and convert it to HTML format. | |
975 | # | |
976 | sub process_back { | |
2ceaccd7 | 977 | warn "$0: $podfile: unexpected =back directive in paragraph $paragraph. ignoring.\n" |
54310121 | 978 | unless $listlevel; |
979 | return unless $listlevel; | |
980 | ||
981 | # close off the list. note, I check to see if $listend[$listlevel] is | |
982 | # defined because an =item directive may have never appeared and thus | |
983 | # $listend[$listlevel] may have never been initialized. | |
984 | $listlevel--; | |
985 | print HTML $listend[$listlevel] if defined $listend[$listlevel]; | |
986 | print HTML "\n"; | |
987 | ||
988 | # don't need the corresponding perl code anymore | |
989 | pop(@listitem); | |
990 | pop(@listdata); | |
991 | pop(@listend); | |
992 | ||
993 | pop(@items_seen); | |
994 | } | |
995 | ||
996 | # | |
997 | # process_cut - process a pod cut tag, thus stop ignoring pod directives. | |
998 | # | |
999 | sub process_cut { | |
1000 | $ignore = 1; | |
1001 | } | |
1002 | ||
1003 | # | |
1004 | # process_pod - process a pod pod tag, thus ignore pod directives until we see a | |
1005 | # corresponding cut. | |
1006 | # | |
1007 | sub process_pod { | |
1008 | # no need to set $ignore to 0 cause the main loop did it | |
1009 | } | |
1010 | ||
1011 | # | |
1012 | # process_for - process a =for pod tag. if it's for html, split | |
c4d9b39d | 1013 | # it out verbatim, if illustration, center it, otherwise ignore it. |
54310121 | 1014 | # |
1015 | sub process_for { | |
1016 | my($whom, $text) = @_; | |
1017 | if ( $whom =~ /^(pod2)?html$/i) { | |
1018 | print HTML $text; | |
c4d9b39d IZ |
1019 | } elsif ($whom =~ /^illustration$/i) { |
1020 | 1 while chomp $text; | |
1021 | for my $ext (qw[.png .gif .jpeg .jpg .tga .pcl .bmp]) { | |
1022 | $text .= $ext, last if -r "$text$ext"; | |
1023 | } | |
1024 | print HTML qq{<p align = "center"><img src = "$text" alt = "$text illustration"></p>}; | |
1025 | } | |
54310121 | 1026 | } |
1027 | ||
1028 | # | |
1029 | # process_begin - process a =begin pod tag. this pushes | |
1030 | # whom we're beginning on the begin stack. if there's a | |
1031 | # begin stack, we only print if it us. | |
1032 | # | |
1033 | sub process_begin { | |
1034 | my($whom, $text) = @_; | |
1035 | $whom = lc($whom); | |
1036 | push (@begin_stack, $whom); | |
1037 | if ( $whom =~ /^(pod2)?html$/) { | |
1038 | print HTML $text if $text; | |
1039 | } | |
1040 | } | |
1041 | ||
1042 | # | |
1043 | # process_end - process a =end pod tag. pop the | |
1044 | # begin stack. die if we're mismatched. | |
1045 | # | |
1046 | sub process_end { | |
1047 | my($whom, $text) = @_; | |
1048 | $whom = lc($whom); | |
1049 | if ($begin_stack[-1] ne $whom ) { | |
1050 | die "Unmatched begin/end at chunk $paragraph\n" | |
1051 | } | |
1052 | pop @begin_stack; | |
1053 | } | |
1054 | ||
1055 | # | |
1056 | # process_text - handles plaintext that appears in the input pod file. | |
1057 | # there may be pod commands embedded within the text so those must be | |
1058 | # converted to html commands. | |
1059 | # | |
1060 | sub process_text { | |
1061 | my($text, $escapeQuotes) = @_; | |
1062 | my($result, $rest, $s1, $s2, $s3, $s4, $match, $bf); | |
1063 | my($podcommand, $params, $tag, $quote); | |
1064 | ||
1065 | return if $ignore; | |
1066 | ||
1067 | $quote = 0; # status of double-quote conversion | |
1068 | $result = ""; | |
1069 | $rest = $$text; | |
1070 | ||
1071 | if ($rest =~ /^\s+/) { # preformatted text, no pod directives | |
be173d55 HM |
1072 | $rest =~ s/\n+\Z//; |
1073 | $rest =~ s#.*# | |
1074 | my $line = $&; | |
1075 | 1 while $line =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e; | |
1076 | $line; | |
1077 | #eg; | |
54310121 | 1078 | |
1079 | $rest =~ s/&/&/g; | |
1080 | $rest =~ s/</</g; | |
1081 | $rest =~ s/>/>/g; | |
1082 | $rest =~ s/"/"/g; | |
1083 | ||
1084 | # try and create links for all occurrences of perl.* within | |
1085 | # the preformatted text. | |
1086 | $rest =~ s{ | |
1087 | (\s*)(perl\w+) | |
1088 | }{ | |
1089 | if (defined $pages{$2}) { # is a link | |
1090 | qq($1<A HREF="$htmlroot/$pages{$2}">$2</A>); | |
39e571d4 LM |
1091 | } elsif (defined $pages{dosify($2)}) { # is a link |
1092 | qq($1<A HREF="$htmlroot/$pages{dosify($2)}">$2</A>); | |
54310121 | 1093 | } else { |
1094 | "$1$2"; | |
1095 | } | |
1096 | }xeg; | |
1097 | $rest =~ s/(<A HREF=)([^>:]*:)?([^>:]*)\.pod:([^>:]*:)?/$1$3.html/g; | |
1098 | ||
1099 | my $urls = '(' . join ('|', qw{ | |
1100 | http | |
1101 | telnet | |
1102 | mailto | |
1103 | news | |
1104 | gopher | |
1105 | file | |
1106 | wais | |
1107 | ftp | |
1108 | } ) | |
1109 | . ')'; | |
1110 | ||
1111 | my $ltrs = '\w'; | |
1112 | my $gunk = '/#~:.?+=&%@!\-'; | |
1113 | my $punc = '.:?\-'; | |
1114 | my $any = "${ltrs}${gunk}${punc}"; | |
1115 | ||
1116 | $rest =~ s{ | |
1117 | \b # start at word boundary | |
1118 | ( # begin $1 { | |
1119 | $urls : # need resource and a colon | |
1120 | [$any] +? # followed by on or more | |
1121 | # of any valid character, but | |
1122 | # be conservative and take only | |
1123 | # what you need to.... | |
1124 | ) # end $1 } | |
1125 | (?= # look-ahead non-consumptive assertion | |
1126 | [$punc]* # either 0 or more puntuation | |
1127 | [^$any] # followed by a non-url char | |
1128 | | # or else | |
1129 | $ # then end of the string | |
1130 | ) | |
1131 | }{<A HREF="$1">$1</A>}igox; | |
1132 | ||
1133 | $result = "<PRE>" # text should be as it is (verbatim) | |
1134 | . "$rest\n" | |
1135 | . "</PRE>\n"; | |
1136 | } else { # formatted text | |
1137 | # parse through the string, stopping each time we find a | |
1138 | # pod-escape. once the string has been throughly processed | |
1139 | # we can output it. | |
ec978fad | 1140 | while (length $rest) { |
54310121 | 1141 | # check to see if there are any possible pod directives in |
1142 | # the remaining part of the text. | |
1143 | if ($rest =~ m/[BCEIFLSZ]</) { | |
1144 | warn "\$rest\t= $rest\n" unless | |
1145 | $rest =~ /\A | |
1146 | ([^<]*?) | |
1147 | ([BCEIFLSZ]?) | |
1148 | < | |
1149 | (.*)\Z/xs; | |
1150 | ||
1151 | $s1 = $1; # pure text | |
1152 | $s2 = $2; # the type of pod-escape that follows | |
1153 | $s3 = '<'; # '<' | |
1154 | $s4 = $3; # the rest of the string | |
1155 | } else { | |
1156 | $s1 = $rest; | |
1157 | $s2 = ""; | |
1158 | $s3 = ""; | |
1159 | $s4 = ""; | |
1160 | } | |
1161 | ||
1162 | if ($s3 eq '<' && $s2) { # a pod-escape | |
1163 | $result .= ($escapeQuotes ? process_puretext($s1, \$quote) : $s1); | |
1164 | $podcommand = "$s2<"; | |
1165 | $rest = $s4; | |
1166 | ||
1167 | # find the matching '>' | |
1168 | $match = 1; | |
1169 | $bf = 0; | |
1170 | while ($match && !$bf) { | |
1171 | $bf = 1; | |
1172 | if ($rest =~ /\A([^<>]*[BCEIFLSZ]<)(.*)\Z/s) { | |
1173 | $bf = 0; | |
1174 | $match++; | |
1175 | $podcommand .= $1; | |
1176 | $rest = $2; | |
1177 | } elsif ($rest =~ /\A([^>]*>)(.*)\Z/s) { | |
1178 | $bf = 0; | |
1179 | $match--; | |
1180 | $podcommand .= $1; | |
1181 | $rest = $2; | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | if ($match != 0) { | |
1186 | warn <<WARN; | |
1187 | $0: $podfile: cannot find matching > for $s2 in paragraph $paragraph. | |
1188 | WARN | |
1189 | $result .= substr $podcommand, 0, 2; | |
1190 | $rest = substr($podcommand, 2) . $rest; | |
1191 | next; | |
1192 | } | |
1193 | ||
1194 | # pull out the parameters to the pod-escape | |
1195 | $podcommand =~ /^([BCFEILSZ]?)<(.*)>$/s; | |
1196 | $tag = $1; | |
1197 | $params = $2; | |
1198 | ||
1199 | # process the text within the pod-escape so that any escapes | |
1200 | # which must occur do. | |
1201 | process_text(\$params, 0) unless $tag eq 'L'; | |
1202 | ||
1203 | $s1 = $params; | |
1204 | if (!$tag || $tag eq " ") { # <> : no tag | |
1205 | $s1 = "<$params>"; | |
1206 | } elsif ($tag eq "L") { # L<> : link | |
1207 | $s1 = process_L($params); | |
1208 | } elsif ($tag eq "I" || # I<> : italicize text | |
1209 | $tag eq "B" || # B<> : bold text | |
1210 | $tag eq "F") { # F<> : file specification | |
1211 | $s1 = process_BFI($tag, $params); | |
1212 | } elsif ($tag eq "C") { # C<> : literal code | |
1213 | $s1 = process_C($params, 1); | |
1214 | } elsif ($tag eq "E") { # E<> : escape | |
1215 | $s1 = process_E($params); | |
1216 | } elsif ($tag eq "Z") { # Z<> : zero-width character | |
1217 | $s1 = process_Z($params); | |
1218 | } elsif ($tag eq "S") { # S<> : non-breaking space | |
1219 | $s1 = process_S($params); | |
1220 | } elsif ($tag eq "X") { # S<> : non-breaking space | |
1221 | $s1 = process_X($params); | |
1222 | } else { | |
1223 | warn "$0: $podfile: unhandled tag '$tag' in paragraph $paragraph\n"; | |
1224 | } | |
1225 | ||
1226 | $result .= "$s1"; | |
1227 | } else { | |
1228 | # for pure text we must deal with implicit links and | |
1229 | # double-quotes among other things. | |
1230 | $result .= ($escapeQuotes ? process_puretext("$s1$s2$s3", \$quote) : "$s1$s2$s3"); | |
1231 | $rest = $s4; | |
1232 | } | |
1233 | } | |
1234 | } | |
1235 | $$text = $result; | |
1236 | } | |
1237 | ||
1238 | sub html_escape { | |
1239 | my $rest = $_[0]; | |
1240 | $rest =~ s/&/&/g; | |
1241 | $rest =~ s/</</g; | |
1242 | $rest =~ s/>/>/g; | |
1243 | $rest =~ s/"/"/g; | |
1244 | return $rest; | |
1245 | } | |
1246 | ||
1247 | # | |
1248 | # process_puretext - process pure text (without pod-escapes) converting | |
1249 | # double-quotes and handling implicit C<> links. | |
1250 | # | |
1251 | sub process_puretext { | |
1252 | my($text, $quote) = @_; | |
1253 | my(@words, $result, $rest, $lead, $trail); | |
1254 | ||
1255 | # convert double-quotes to single-quotes | |
1256 | $text =~ s/\A([^"]*)"/$1''/s if $$quote; | |
1257 | while ($text =~ s/\A([^"]*)["]([^"]*)["]/$1``$2''/sg) {} | |
1258 | ||
1259 | $$quote = ($text =~ m/"/ ? 1 : 0); | |
1260 | $text =~ s/\A([^"]*)"/$1``/s if $$quote; | |
1261 | ||
1262 | # keep track of leading and trailing white-space | |
1263 | $lead = ($text =~ /\A(\s*)/s ? $1 : ""); | |
1264 | $trail = ($text =~ /(\s*)\Z/s ? $1 : ""); | |
1265 | ||
1266 | # collapse all white space into a single space | |
1267 | $text =~ s/\s+/ /g; | |
1268 | @words = split(" ", $text); | |
1269 | ||
1270 | # process each word individually | |
1271 | foreach my $word (@words) { | |
1272 | # see if we can infer a link | |
1273 | if ($word =~ /^\w+\(/) { | |
1274 | # has parenthesis so should have been a C<> ref | |
1275 | $word = process_C($word); | |
1276 | # $word =~ /^[^()]*]\(/; | |
1277 | # if (defined $items{$1} && $items{$1}) { | |
1278 | # $word = "\n<CODE><A HREF=\"$htmlroot/$items{$1}#item_" | |
1279 | # . htmlify(0,$word) | |
1280 | # . "\">$word</A></CODE>"; | |
1281 | # } elsif (defined $items{$word} && $items{$word}) { | |
1282 | # $word = "\n<CODE><A HREF=\"$htmlroot/$items{$word}#item_" | |
1283 | # . htmlify(0,$word) | |
1284 | # . "\">$word</A></CODE>"; | |
1285 | # } else { | |
1286 | # $word = "\n<CODE><A HREF=\"#item_" | |
1287 | # . htmlify(0,$word) | |
1288 | # . "\">$word</A></CODE>"; | |
1289 | # } | |
1290 | } elsif ($word =~ /^[\$\@%&*]+\w+$/) { | |
1291 | # perl variables, should be a C<> ref | |
1292 | $word = process_C($word, 1); | |
1293 | } elsif ($word =~ m,^\w+://\w,) { | |
1294 | # looks like a URL | |
1295 | $word = qq(<A HREF="$word">$word</A>); | |
1296 | } elsif ($word =~ /[\w.-]+\@\w+\.\w/) { | |
1297 | # looks like an e-mail address | |
7b8d334a GS |
1298 | my ($w1, $w2, $w3) = ("", $word, ""); |
1299 | ($w1, $w2, $w3) = ("(", $1, ")$2") if $word =~ /^\((.*?)\)(,?)/; | |
1300 | ($w1, $w2, $w3) = ("<", $1, ">$2") if $word =~ /^<(.*?)>(,?)/; | |
1301 | $word = qq($w1<A HREF="mailto:$w2">$w2</A>$w3); | |
54310121 | 1302 | } elsif ($word !~ /[a-z]/ && $word =~ /[A-Z]/) { # all uppercase? |
7b8d334a | 1303 | $word = html_escape($word) if $word =~ /["&<>]/; |
54310121 | 1304 | $word = "\n<FONT SIZE=-1>$word</FONT>" if $netscape; |
1305 | } else { | |
7b8d334a | 1306 | $word = html_escape($word) if $word =~ /["&<>]/; |
54310121 | 1307 | } |
1308 | } | |
1309 | ||
1310 | # build a new string based upon our conversion | |
1311 | $result = ""; | |
1312 | $rest = join(" ", @words); | |
1313 | while (length($rest) > 75) { | |
1314 | if ( $rest =~ m/^(.{0,75})\s(.*?)$/o || | |
1315 | $rest =~ m/^(\S*)\s(.*?)$/o) { | |
1316 | ||
1317 | $result .= "$1\n"; | |
1318 | $rest = $2; | |
1319 | } else { | |
1320 | $result .= "$rest\n"; | |
1321 | $rest = ""; | |
1322 | } | |
1323 | } | |
1324 | $result .= $rest if $rest; | |
1325 | ||
1326 | # restore the leading and trailing white-space | |
1327 | $result = "$lead$result$trail"; | |
1328 | ||
1329 | return $result; | |
1330 | } | |
1331 | ||
1332 | # | |
1333 | # pre_escape - convert & in text to $amp; | |
1334 | # | |
1335 | sub pre_escape { | |
1336 | my($str) = @_; | |
1337 | ||
1338 | $$str =~ s,&,&,g; | |
1339 | } | |
1340 | ||
1341 | # | |
39e571d4 LM |
1342 | # dosify - convert filenames to 8.3 |
1343 | # | |
1344 | sub dosify { | |
1345 | my($str) = @_; | |
1346 | if ($Is83) { | |
1347 | $str = lc $str; | |
1348 | $str =~ s/(\.\w+)/substr ($1,0,4)/ge; | |
1349 | $str =~ s/(\w+)/substr ($1,0,8)/ge; | |
1350 | } | |
1351 | return $str; | |
1352 | } | |
1353 | ||
1354 | # | |
54310121 | 1355 | # process_L - convert a pod L<> directive to a corresponding HTML link. |
1356 | # most of the links made are inferred rather than known about directly | |
1357 | # (i.e it's not known whether the =head\d section exists in the target file, | |
1358 | # or whether a .pod file exists in the case of split files). however, the | |
1359 | # guessing usually works. | |
1360 | # | |
1361 | # Unlike the other directives, this should be called with an unprocessed | |
1362 | # string, else tags in the link won't be matched. | |
1363 | # | |
1364 | sub process_L { | |
1365 | my($str) = @_; | |
39e571d4 | 1366 | my($s1, $s2, $linktext, $page, $page83, $section, $link); # work strings |
54310121 | 1367 | |
1368 | $str =~ s/\n/ /g; # undo word-wrapped tags | |
1369 | $s1 = $str; | |
1370 | for ($s1) { | |
b74bceb9 AB |
1371 | # LREF: a la HREF L<show this text|man/section> |
1372 | $linktext = $1 if s:^([^|]+)\|::; | |
1373 | ||
54310121 | 1374 | # a :: acts like a / |
1375 | s,::,/,; | |
1376 | ||
1377 | # make sure sections start with a / | |
1378 | s,^",/",g; | |
1379 | s,^,/,g if (!m,/, && / /); | |
1380 | ||
1381 | # check if there's a section specified | |
1382 | if (m,^(.*?)/"?(.*?)"?$,) { # yes | |
1383 | ($page, $section) = ($1, $2); | |
1384 | } else { # no | |
1385 | ($page, $section) = ($str, ""); | |
1386 | } | |
1387 | ||
1388 | # check if we know that this is a section in this page | |
1389 | if (!defined $pages{$page} && defined $sections{$page}) { | |
1390 | $section = $page; | |
1391 | $page = ""; | |
1392 | } | |
1393 | } | |
1394 | ||
39e571d4 LM |
1395 | $page83=dosify($page); |
1396 | $page=$page83 if (defined $pages{$page83}); | |
54310121 | 1397 | if ($page eq "") { |
1398 | $link = "#" . htmlify(0,$section); | |
b74bceb9 | 1399 | $linktext = $section unless defined($linktext); |
54310121 | 1400 | } elsif (!defined $pages{$page}) { |
1401 | warn "$0: $podfile: cannot resolve L<$str> in paragraph $paragraph: no such page '$page'\n"; | |
1402 | $link = ""; | |
b74bceb9 | 1403 | $linktext = $page unless defined($linktext); |
54310121 | 1404 | } else { |
b74bceb9 | 1405 | $linktext = ($section ? "$section" : "the $page manpage") unless defined($linktext); |
54310121 | 1406 | $section = htmlify(0,$section) if $section ne ""; |
1407 | ||
1408 | # if there is a directory by the name of the page, then assume that an | |
1409 | # appropriate section will exist in the subdirectory | |
1410 | if ($section ne "" && $pages{$page} =~ /([^:]*[^(\.pod|\.pm)]):/) { | |
1411 | $link = "$htmlroot/$1/$section.html"; | |
1412 | ||
1413 | # since there is no directory by the name of the page, the section will | |
1414 | # have to exist within a .html of the same name. thus, make sure there | |
1415 | # is a .pod or .pm that might become that .html | |
1416 | } else { | |
1417 | $section = "#$section"; | |
1418 | # check if there is a .pod with the page name | |
1419 | if ($pages{$page} =~ /([^:]*)\.pod:/) { | |
1420 | $link = "$htmlroot/$1.html$section"; | |
1421 | } elsif ($pages{$page} =~ /([^:]*)\.pm:/) { | |
1422 | $link = "$htmlroot/$1.html$section"; | |
1423 | } else { | |
1424 | warn "$0: $podfile: cannot resolve L$str in paragraph $paragraph: ". | |
1425 | "no .pod or .pm found\n"; | |
1426 | $link = ""; | |
b74bceb9 | 1427 | $linktext = $section unless defined($linktext); |
54310121 | 1428 | } |
1429 | } | |
1430 | } | |
1431 | ||
1432 | process_text(\$linktext, 0); | |
1433 | if ($link) { | |
1434 | $s1 = "<A HREF=\"$link\">$linktext</A>"; | |
1435 | } else { | |
1436 | $s1 = "<EM>$linktext</EM>"; | |
1437 | } | |
1438 | return $s1; | |
1439 | } | |
1440 | ||
1441 | # | |
1442 | # process_BFI - process any of the B<>, F<>, or I<> pod-escapes and | |
1443 | # convert them to corresponding HTML directives. | |
1444 | # | |
1445 | sub process_BFI { | |
1446 | my($tag, $str) = @_; | |
1447 | my($s1); # work string | |
1448 | my(%repltext) = ( 'B' => 'STRONG', | |
1449 | 'F' => 'EM', | |
1450 | 'I' => 'EM'); | |
1451 | ||
1452 | # extract the modified text and convert to HTML | |
1453 | $s1 = "<$repltext{$tag}>$str</$repltext{$tag}>"; | |
1454 | return $s1; | |
1455 | } | |
1456 | ||
1457 | # | |
1458 | # process_C - process the C<> pod-escape. | |
1459 | # | |
1460 | sub process_C { | |
1461 | my($str, $doref) = @_; | |
1462 | my($s1, $s2); | |
1463 | ||
1464 | $s1 = $str; | |
1465 | $s1 =~ s/\([^()]*\)//g; # delete parentheses | |
be173d55 | 1466 | $s2 = $s1; |
54310121 | 1467 | $s1 =~ s/\W//g; # delete bogus characters |
7b8d334a | 1468 | $str = html_escape($str); |
54310121 | 1469 | |
1470 | # if there was a pod file that we found earlier with an appropriate | |
1471 | # =item directive, then create a link to that page. | |
1472 | if ($doref && defined $items{$s1}) { | |
1473 | $s1 = ($items{$s1} ? | |
1474 | "<A HREF=\"$htmlroot/$items{$s1}#item_" . htmlify(0,$s2) . "\">$str</A>" : | |
1475 | "<A HREF=\"#item_" . htmlify(0,$s2) . "\">$str</A>"); | |
1476 | $s1 =~ s,(perl\w+/(\S+)\.html)#item_\2\b,$1,; | |
1477 | confess "s1 has space: $s1" if $s1 =~ /HREF="[^"]*\s[^"]*"/; | |
1478 | } else { | |
1479 | $s1 = "<CODE>$str</CODE>"; | |
1480 | # warn "$0: $podfile: cannot resolve C<$str> in paragraph $paragraph\n" if $verbose | |
1481 | } | |
1482 | ||
1483 | ||
1484 | return $s1; | |
1485 | } | |
1486 | ||
1487 | # | |
1488 | # process_E - process the E<> pod directive which seems to escape a character. | |
1489 | # | |
1490 | sub process_E { | |
1491 | my($str) = @_; | |
1492 | ||
1493 | for ($str) { | |
1494 | s,([^/].*),\&$1\;,g; | |
1495 | } | |
1496 | ||
1497 | return $str; | |
1498 | } | |
1499 | ||
1500 | # | |
1501 | # process_Z - process the Z<> pod directive which really just amounts to | |
1502 | # ignoring it. this allows someone to start a paragraph with an = | |
1503 | # | |
1504 | sub process_Z { | |
1505 | my($str) = @_; | |
1506 | ||
1507 | # there is no equivalent in HTML for this so just ignore it. | |
1508 | $str = ""; | |
1509 | return $str; | |
1510 | } | |
1511 | ||
1512 | # | |
1513 | # process_S - process the S<> pod directive which means to convert all | |
1514 | # spaces in the string to non-breaking spaces (in HTML-eze). | |
1515 | # | |
1516 | sub process_S { | |
1517 | my($str) = @_; | |
1518 | ||
1519 | # convert all spaces in the text to non-breaking spaces in HTML. | |
1520 | $str =~ s/ / /g; | |
1521 | return $str; | |
1522 | } | |
1523 | ||
1524 | # | |
1525 | # process_X - this is supposed to make an index entry. we'll just | |
1526 | # ignore it. | |
1527 | # | |
1528 | sub process_X { | |
1529 | return ''; | |
1530 | } | |
1531 | ||
1532 | ||
1533 | # | |
1534 | # finish_list - finish off any pending HTML lists. this should be called | |
1535 | # after the entire pod file has been read and converted. | |
1536 | # | |
1537 | sub finish_list { | |
7b8d334a | 1538 | while ($listlevel > 0) { |
54310121 | 1539 | print HTML "</DL>\n"; |
1540 | $listlevel--; | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | # | |
1545 | # htmlify - converts a pod section specification to a suitable section | |
1546 | # specification for HTML. if first arg is 1, only takes 1st word. | |
1547 | # | |
1548 | sub htmlify { | |
1549 | my($compact, $heading) = @_; | |
1550 | ||
1551 | if ($compact) { | |
1552 | $heading =~ /^(\w+)/; | |
1553 | $heading = $1; | |
1554 | } | |
1555 | ||
1556 | # $heading = lc($heading); | |
1557 | $heading =~ s/[^\w\s]/_/g; | |
1558 | $heading =~ s/(\s+)/ /g; | |
1559 | $heading =~ s/^\s*(.*?)\s*$/$1/s; | |
1560 | $heading =~ s/ /_/g; | |
1561 | $heading =~ s/\A(.{32}).*\Z/$1/s; | |
1562 | $heading =~ s/\s+\Z//; | |
1563 | $heading =~ s/_{2,}/_/g; | |
1564 | ||
1565 | return $heading; | |
1566 | } | |
1567 | ||
1568 | BEGIN { | |
1569 | } | |
1570 | ||
1571 | 1; |