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