bicyclesonthemoon.info Git - ott/bsta/blob - 2words.1.pl

   1 ###RUN_PERL: #!/usr/bin/perl
   2
   3 # /bsta/2words
   4 # 2words is generated from 2words.1.pl.
   5 #
   6 # The wordgame interface
   7 #
   8 # Copyright (C) 2016, 2017, 2023, 2024  Balthasar Szczepański
   9 #
  10 # This program is free software: you can redistribute it and/or modify
  11 # it under the terms of the GNU Affero General Public License as
  12 # published by the Free Software Foundation, either version 3 of the
  13 # License, or (at your option) any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU Affero General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU Affero General Public License
  21 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 use strict;
  24 use utf8;
  25 # use Encode::Locale ('decode_argv');
  26 use Encode ('encode', 'decode');
  27
  28 ###PERL_LIB: use lib /botm/lib/bsta
  29 use botm_common (
  30         'read_data_file', 'write_data_file',
  31         'merge_url',
  32         'read_header_env',
  33         'html_entity_encode_dec',
  34         'url_query_decode',
  35         'open_encoded'
  36 );
  37 use bsta_lib (
  38         'STATE', 'INTF_STATE',
  39         'get_id',
  40         'fail_method', 'fail_content_type',
  41         'print_html_start', 'print_html_end',
  42         'print_html_head_start', 'print_html_head_end',
  43         'print_html_body_start', 'print_html_body_end',
  44         'write_index',
  45         'get_remote_addr',
  46         'merge_settings',
  47         'ong'
  48 );
  49
  50 ###PERL_CGI_PATH:           CGI_PATH           = /bsta/
  51 ###PERL_CGI_2WORDS_PATH:    CGI_2WORDS_PATH    = /bsta/2words
  52
  53 ###PERL_DATA_SETTINGS_PATH: DATA_SETTINGS_PATH = /botm/data/bsta/settings
  54 ###PERL_DATA_STATE_PATH:    DATA_STATE_PATH    = /botm/data/bsta/state
  55 ###PERL_DATA_STORY_PATH:    DATA_STORY_PATH    = /botm/data/bsta/story
  56
  57 ###PERL_WEBSITE_NAME:       WEBSITE_NAME       = Bicycles on the Moon
  58
  59 ###PERL_STORY_LENGTH:       STORY_LENGTH       = 16
  60 ###PERL_PAGE_LENGTH:        PAGE_LENGTH        = 16
  61 ###PERL_FIRSTPAGE_LENGTH:   FIRSTPAGE_LENGTH   = 4
  62
  63 binmode STDIN,  ':encoding(UTF-8)';
  64 binmode STDOUT, ':encoding(UTF-8)';
  65 binmode STDERR, ':encoding(UTF-8)';
  66 # decode_argv();
  67
  68 my %http;
  69 my %cgi;
  70 my %story;
  71 my %new_story;
  72 my %settings;
  73 my %state;
  74
  75 my $time = time();
  76 srand ($time-$$);
  77
  78 my $method;
  79 my $IP;
  80 my $words;
  81 my $color2;
  82 my $last_IP;
  83 my $story_id;
  84 my $turn;
  85 my $message;
  86 my $first_letter;
  87 my $second_letter;
  88 my $last_letter;
  89 my $intf_state;
  90 my $intf_pass;
  91 my $intf_pause;
  92 my $intf_mode;
  93 my $story_i_path;
  94 my $fh;
  95 my $story_lock;
  96 my @story_lines;
  97 my $ong_state;
  98 my $page;
  99 my $cmd_clear;
 100 my $cmd_clear_all;
 101
 102
 103 delete @ENV{qw(IFS CDPATH ENV BASH_ENV)};
 104 ###PERL_SET_PATH: $ENV{'PATH'} = /usr/local/bin:/usr/bin:/bin;
 105
 106 if ($ENV{'REQUEST_METHOD'} =~ /^(HEAD|GET|POST)$/) {
 107         $method = $1;
 108 }
 109 else {
 110         exit fail_method($ENV{'REQUEST_METHOD'}, 'GET, POST, HEAD');
 111 }
 112
 113 %http = read_header_env(\%ENV);
 114 %cgi = url_query_decode($ENV{'QUERY_STRING'});
 115
 116 if ($method eq 'POST') {
 117         if ($http{'content-type'} eq 'application/x-www-form-urlencoded') {
 118                 my %cgi_post = url_query_decode( <STDIN> );
 119                 %cgi = merge_settings(\%cgi, \%cgi_post);
 120         }
 121         # multipart not supported
 122         else{
 123                 exit fail_content_type($method, $http{'content-type'});
 124         }
 125 }
 126
 127 $IP = get_remote_addr();
 128 $page = get_id(\%cgi);
 129 if ($cgi{'words'} ne '') {
 130         $words = $cgi{'words'};
 131 }
 132
 133 %settings = read_data_file(DATA_SETTINGS_PATH());
 134 %state    = read_data_file(DATA_STATE_PATH());
 135 $ong_state = int($state{'state'});
 136 $cmd_clear     = $settings{'password'}.' clear';
 137 $cmd_clear_all = $settings{'password'}.' clearall';
 138
 139 $story_lock=0;
 140 if (open_encoded($fh, "+<:encoding(UTF-8)", DATA_STORY_PATH())) {
 141         $story_lock=1;
 142         if (flock($fh,2)) {
 143                 $story_lock=2;
 144         }
 145         %story = read_data_file($fh);
 146
 147         if ($story{'lastip'} =~ /^.+$/) {
 148                 $last_IP=$&;
 149         }
 150         else {
 151                 $last_IP='0.0.0.0';
 152         }
 153
 154         $last_letter = lc($story{'letter'});
 155         $story_id   = int($story{'id'});
 156         $intf_pass  = int($story{'pass'});
 157         $intf_state = int($story{'state'});
 158         $intf_mode  = $intf_state & INTF_STATE->{'mode'};
 159         $intf_pause = $intf_state & INTF_STATE->{'||'};
 160
 161         if ($IP ne $last_IP) {
 162                 $turn = 1;
 163         }
 164         else {
 165                 $turn = 0;
 166         }
 167
 168         if (
 169                 ($words eq $cmd_clear) ||
 170                 ($words eq $cmd_clear_all) ||
 171                 ($intf_state < 0)
 172         ) {
 173                 if (
 174                         ($words eq $cmd_clear_all) ||
 175                         ($intf_state < -1)
 176                 ) {
 177                         $story{'id'} = 0;
 178                 }
 179                 $story{'content'} = '';
 180                 $story{'lastip' } = '0.0.0.0';
 181                 $story{'letter' } = '';
 182                 $story{'pass'   } = 0;
 183                 $story{'state'  } = INTF_STATE->{'X'};
 184                 $turn = 0;
 185                 if ($ong_state == STATE->{'inactive'}) {
 186                         write_index(
 187                                 \%state,
 188                                 \%settings,
 189                                 $story{'pass'},
 190                                 $story{'state'},
 191                                 0 # pause
 192                         );
 193                 }
 194                 write_data_file($fh, \%story);
 195         }
 196
 197         if ($words ne '') {
 198                 if (!$turn) {
 199                         $message = "It's not your turn.";
 200                 }
 201                 # TODO: consider allowing non-ASCII letters in words.
 202                 # (not very important in English language)
 203                 elsif ($words =~ /^([!"\(\),\.:;\?][ \t]*)?([A-Za-z][A-Za-z'\-]*[A-Za-z']?)([!"\(\),\.:;\? \t][ \t]*)([A-Za-z][A-Za-z'\-]*[A-Za-z']?)([!"\(\),\.:;\?]?[ \t]*)$/) {
 204                         # we have 2 words
 205                         $first_letter  = lc(substr($2, 0, 1));
 206                         $second_letter = lc(substr($4, 0, 1));
 207                         if (
 208                                 ($first_letter ne $last_letter) &&
 209                                 ($last_letter ne '')
 210                         ) {
 211                                 $message = 'The first word must start with '.uc($last_letter).'.';
 212                         }
 213                         elsif ($first_letter eq $second_letter) {
 214                                 $message = 'The second word can\'t also start with '.uc($first_letter).'.';
 215                         }
 216                         else {
 217                                 # words are valid
 218                                 # update state
 219                                 $story{'content'} = $story{'content'} . $words."\n";
 220                                 $turn = 0;
 221                                 $story{'lastip'} = $IP;
 222                                 $story{'letter'} = $second_letter;
 223
 224                                 if ($cgi{'next'} ne '') {
 225                                         # start next game
 226                                         if (split(/\r?\n/,$story{'content'}) >= (STORY_LENGTH-1)) {
 227                                                 # store finished game
 228                                                 $story_i_path = DATA_STORY_PATH.$story_id;
 229                                                 write_data_file($story_i_path, \%story);
 230                                                 # init new game
 231                                                 $new_story{'id'     } = $story_id + 1;
 232                                                 $new_story{'letter' } = '';
 233                                                 $new_story{'lastip' } = $IP;
 234                                                 $new_story{'content'} = '';
 235                                                 $new_story{'pass'   } = 0;
 236                                                 $new_story{'state'  } = INTF_STATE->{'X'};
 237                                                 # reset hidden interface
 238                                                 $intf_state = INTF_STATE->{'X'};
 239                                                 $intf_pass = 0;
 240                                                 $intf_mode = INTF_STATE->{'X'};
 241                                                 $intf_pause= 0;
 242                                                 if($ong_state == STATE->{'inactive'}) {
 243                                                         # ONG not activated yet; reset index
 244                                                         write_index(
 245                                                                 \%state,
 246                                                                 \%settings,
 247                                                                 $intf_pass,
 248                                                                 $intf_mode,
 249                                                                 $intf_pause
 250                                                         );
 251                                                 }
 252                                                 # save new game
 253                                                 write_data_file($fh, \%new_story);
 254                                         }
 255                                         else {
 256                                                 $message = 'To early to finish this wordgame.';
 257                                                 write_data_file($fh, \%story);
 258                                         }
 259                                 }
 260                                 else {
 261                                         # continue the game
 262                                         if ($intf_pass == 1) {
 263                                                 # hidden interface was already active; deactivate
 264                                                 $intf_pass = 2;
 265                                                 $story{'pass'} = 2;
 266                                                 if($ong_state == STATE->{'inactive'}) {
 267                                                         write_index(
 268                                                                 \%state,
 269                                                                 \%settings,
 270                                                                 $intf_pass,
 271                                                                 $intf_mode,
 272                                                                 $intf_pause
 273                                                         );
 274                                                 }
 275                                         }
 276                                         elsif(lc($2).' '.lc($4) eq $settings{'unlock'}) {
 277                                                 # correct password for the hidden interface!
 278                                                 if ($intf_pass != 0) {
 279                                                         $message = 'The password has already been used in this story.';
 280                                                 }
 281                                                 elsif ($ong_state != STATE->{'inactive'}) {
 282                                                         # ONG already active, nothing to do here
 283                                                         $message = "???";
 284                                                 }
 285                                                 else {
 286                                                         # ready to activate?
 287                                                         my $r;
 288
 289                                                         # ONG tape interface
 290                                                         $r = ong(
 291                                                                 'i',   # ID: tape interface
 292                                                                 $time, # ONG time;    not relevant
 293                                                                 0,     # timer;       not relevant
 294                                                                 0,     # update;      not relevant
 295                                                                 0,     # print
 296                                                                 \%settings,         # not relevant
 297                                                                 '',    # %default;    not relevant
 298                                                                 '',    # %frame_data; not relevant
 299                                                                 ''     # $goto_list;  not relevant
 300                                                         );
 301                                                         if ($r) {
 302                                                                 # ONG CFRT
 303                                                                 $r = ong(
 304                                                                         'c',   # ID: CFRT
 305                                                                         $time, # ONG time;   not relevant
 306                                                                         0,     # timer;      not relevant
 307                                                                         0,     # update;     not relevant
 308                                                                         0,     # print
 309                                                                         \%settings,
 310                                                                         '',    # %default
 311                                                                         '',    # %frame_data
 312                                                                         ''     # $goto_list; not relevant
 313                                                                 );
 314                                                         }
 315                                                         if ($r) {
 316                                                                 # ONG frame 0!
 317                                                                 $r = ong(
 318                                                                         0,     # frame ID
 319                                                                         $time, # ONG time; might get overwritten later
 320                                                                         0,     # timer
 321                                                                         0,     # update
 322                                                                         0,     # print
 323                                                                         \%settings,
 324                                                                         '',    # %default
 325                                                                         '',    # %frame_data
 326                                                                         ''     # $goto_list
 327                                                                 );
 328                                                         }
 329                                                         if($r) {
 330                                                                 # new state of hidden interface
 331                                                                 $intf_pass = 1;
 332                                                                 $intf_state = INTF_STATE->{'X'};
 333                                                                 $intf_mode  = INTF_STATE->{'X'};
 334                                                                 $intf_pause = 0;
 335                                                                 $story{'pass'} = 1;
 336                                                                 $story{'state'} = INTF_STATE->{'X'};
 337                                                                 write_index(
 338                                                                         \%state,
 339                                                                         \%settings,
 340                                                                         $intf_pass,
 341                                                                         $intf_mode,
 342                                                                         $intf_pause
 343                                                                 );
 344                                                         }
 345                                                 }
 346                                         }
 347                                         write_data_file($fh, \%story);
 348                                 }
 349                         }
 350                 }
 351                 else {
 352                         $message = 'Please, two words, not more, not less (some punctuation is allowed).';
 353                 }
 354         }
 355         elsif (
 356                 ($cgi{'s'} ne '') &&
 357                 ($intf_pass == 1) &&
 358                 ($ong_state == STATE->{'inactive'})
 359         ) {
 360                 $intf_state = int($cgi{'s'}) & INTF_STATE->{'mask'};
 361                 $intf_mode  = $intf_state & INTF_STATE->{'mode'};
 362                 $intf_pause = $intf_state & INTF_STATE->{'||'};
 363                 $story{'state'} = $intf_state;
 364                 write_index(
 365                         \%state,
 366                         \%settings,
 367                         $intf_pass,
 368                         $intf_mode,
 369                         $intf_pause
 370                 );
 371                 write_data_file($fh, \%story);
 372         }
 373         @story_lines = split(/\r?\n/, $story{'content'});
 374         if(@story_lines & 1) {
 375                 $turn = !$turn;
 376         }
 377
 378         close($fh);
 379 }
 380
 381 print "Content-type: text/html\n\n";
 382 if($method eq 'HEAD') {
 383         exit;
 384 }
 385
 386 my $max_page = int(($story_id - FIRSTPAGE_LENGTH - 1) / PAGE_LENGTH) + 1;
 387 my $newer_available = ($page > 0);
 388 my $older_available = ($page < $max_page);
 389 my $show_intf = ($intf_pass == 1) && ($ong_state == STATE->{'inactive'});
 390 my $id_start =
 391         $story_id-1 -(
 392                 ($page == 0)    ? 0 : (
 393                         (($page-1) * PAGE_LENGTH ) + FIRSTPAGE_LENGTH
 394                 )
 395         );
 396 my $id_stop = $story_id-1 - (($page*PAGE_LENGTH) + FIRSTPAGE_LENGTH);
 397 if ($id_stop < 0) {
 398         $id_stop = -1;
 399 }
 400
 401 my $bsta_url = CGI_PATH;
 402 my $twowords_url = CGI_2WORDS_PATH;
 403 my $newer_url;
 404 my $older_url;
 405 my $oldest_url;
 406 my $newest_url = merge_url(
 407         {'path' => $twowords_url},
 408         {'path' => 0}
 409 );
 410 if ($newer_available) {
 411         $newer_url = merge_url(
 412                 {'path' => $twowords_url},
 413                 {'path' => $page-1}
 414         );
 415 }
 416 if ($older_available) {
 417         $older_url = merge_url(
 418                 {'path' => $twowords_url},
 419                 {'path' => $page+1}
 420         );
 421         $oldest_url = merge_url(
 422                 {'path' => $twowords_url},
 423                 {'path' => $max_page}
 424         );
 425 }
 426 my $button_4_url = merge_url(
 427         {'path' => $twowords_url},
 428         {'query' => {'s' => (INTF_STATE->{'>'} | $intf_pause)}}
 429 );
 430 my $button_3_url = merge_url(
 431         {'path' => $twowords_url},
 432         {'query' => {'s' => (INTF_STATE->{'<<'} | $intf_pause)}}
 433 );
 434 my $button_2_url = merge_url(
 435         {'path' => $twowords_url},
 436         {'query' => {'s' => (INTF_STATE->{'>>'} | $intf_pause)}}
 437 );
 438 my $button_1_url = merge_url(
 439         {'path' => $twowords_url},
 440         {'query' => {'s' => INTF_STATE->{'X'}}}
 441 );
 442 my $button_0_url = merge_url(
 443         {'path' => $twowords_url},
 444         {'query' => {'s' => ($intf_pause ? $intf_mode : ($intf_mode | INTF_STATE->{'||'}))}}
 445 );
 446 my $button_5_img = merge_url(
 447         {'path' => CGI_PATH()},
 448         {'path' => 'intf-20.gif'}
 449 );
 450 my $button_4_img = merge_url(
 451         {'path' => CGI_PATH()},
 452         {'path' => 'intf-10'.(($intf_mode == INTF_STATE->{'>'}) ? '_' : '').'.gif'}
 453 );
 454 my $button_3_img = merge_url(
 455         {'path' => CGI_PATH()},
 456         {'path' => 'intf-08'.(($intf_mode == INTF_STATE->{'<<'}) ? '_' : '').'.gif'}
 457 );
 458 my $button_2_img = merge_url(
 459         {'path' => CGI_PATH()},
 460         {'path' => 'intf-04'.(($intf_mode == INTF_STATE->{'>>'}) ? '_' : '').'.gif'}
 461 );
 462 my $button_1_img = merge_url(
 463         {'path' => CGI_PATH()},
 464         {'path' => 'intf-02.gif'}
 465 );
 466 my $button_0_img = merge_url(
 467         {'path' => CGI_PATH()},
 468         {'path' => 'intf-01'.($intf_pause ? '_' : '').'.gif'}
 469 );
 470 my $intf_img_id = '';
 471 if ($intf_state == INTF_STATE->{'>'}) {
 472         $intf_img_id = '_10'
 473 }
 474 elsif ($intf_mode == INTF_STATE->{'<<'}) {
 475         $intf_img_id = '_08'
 476 }
 477 elsif ($intf_mode == INTF_STATE->{'>>'}) {
 478         $intf_img_id = '_04'
 479 }
 480 my $intf_img = merge_url(
 481         {'path' => CGI_PATH()},
 482         {'path' => 'intf-00'.$intf_img_id.'.gif'}
 483 );
 484
 485 my $_bsta_url     = html_entity_encode_dec($bsta_url     , 1);
 486 my $_twowords_url = html_entity_encode_dec($twowords_url , 1);
 487 my $_newest_url   = html_entity_encode_dec($newest_url   , 1);
 488 my $_newer_url    = html_entity_encode_dec($newer_url    , 1);
 489 my $_older_url    = html_entity_encode_dec($older_url    , 1);
 490 my $_oldest_url   = html_entity_encode_dec($oldest_url   , 1);
 491 my $_button_4_url = html_entity_encode_dec($button_4_url , 1);
 492 my $_button_3_url = html_entity_encode_dec($button_3_url , 1);
 493 my $_button_2_url = html_entity_encode_dec($button_2_url , 1);
 494 my $_button_1_url = html_entity_encode_dec($button_1_url , 1);
 495 my $_button_0_url = html_entity_encode_dec($button_0_url , 1);
 496 my $_button_5_img = html_entity_encode_dec($button_5_img , 1);
 497 my $_button_4_img = html_entity_encode_dec($button_4_img , 1);
 498 my $_button_3_img = html_entity_encode_dec($button_3_img , 1);
 499 my $_button_2_img = html_entity_encode_dec($button_2_img , 1);
 500 my $_button_1_img = html_entity_encode_dec($button_1_img , 1);
 501 my $_button_0_img = html_entity_encode_dec($button_0_img , 1);
 502 my $_intf_img     = html_entity_encode_dec($intf_img     , 1);
 503 my $_message      = html_entity_encode_dec($message      , 1);
 504 my $_website_name = html_entity_encode_dec(WEBSITE_NAME(), 1);
 505
 506 print_html_start(\*STDOUT);
 507 print_html_head_start(\*STDOUT);
 508
 509
 510 print '  <title>Two words &bull; '.$_website_name.'</title>'."\n";
 511 print '  <link rel="start" href="'.$_oldest_url.'">'."\n";
 512 if ($older_available) {
 513         print '  <link rel="prev" href="'.$_older_url.'">'."\n";
 514 }
 515 if ($newer_available) {
 516         print '  <link rel="next" href="'.$_newer_url.'">'."\n";
 517 }
 518
 519 print_html_head_end(\*STDOUT);
 520 print_html_body_start(\*STDOUT);
 521
 522 print '   <div id="inst" class="ins">'."\n";
 523
 524 print '    <div id="title">'."\n";
 525 print '     <h1 id="titletext">Two words</h1>'."\n";
 526 print '    </div>'."\n";
 527
 528 if ($page == 0) {
 529         print '    <div id="storypuzzle">'."\n";
 530         for (my $i = 0; $i < @story_lines; ++$i) {
 531                 print '     <span class="'.($turn ? 'ni':'br').'">'.html_entity_encode_dec($story_lines[$i], 1).'</span>'."\n";
 532                 $turn = !$turn;
 533         }
 534         print '    </div>'."\n";
 535
 536         print '    <div id="command">'."\n";
 537         if ($message ne '') {
 538                 print '     <span class="br">'.$_message.'</span>'."\n";
 539         }
 540
 541         if ($turn) {
 542                 print '     <form method="post" action="'.$_twowords_url.'">'."\n";
 543                 if ($message eq '') {
 544                         if ($story{"content"} eq '') {
 545                                 print '      Two words, please:<br>'."\n";
 546                         }
 547                         else {
 548                                 print '      Please continue, two words:<br>'."\n";
 549                         }
 550                 }
 551                 print '      <input class="intx" type="text" name="words">'."\n";
 552                 print '      <input class="inbt" type="submit" value="enter">'."\n";
 553                 if (@story_lines >= (STORY_LENGTH-1)) {
 554                         print '      <input class="inbt" type="submit" name="next" value="enter and then start a new one">'."\n";
 555                 }
 556                 print '     </form>'."\n";
 557         }
 558         else {
 559                 if ($message eq '') {
 560                         print '     Wait for it.'."\n";
 561                 }
 562         }
 563         print '    </div>'."\n";
 564 }
 565 elsif ($message ne '') {
 566         print '    <div id="command">'."\n";
 567         print '     <span class="br">'.$_message.'</span>'."\n";
 568         print '    </div>'."\n";
 569 }
 570 print '   </div>'."\n";
 571
 572 if ($show_intf) {
 573         print '   <div id="framespace">'."\n";
 574         print '    <table id="intftable" cellspacing="0" cellpadding="0">'."\n";
 575         print '     <tr class="intf">'."\n";
 576         print '      <td colspan="6" class="intf"><img src="'.$_intf_img.'" alt="" class="intf"></td>'."\n";
 577         print '     </tr>'."\n";
 578
 579         print '     <tr class="intf">'."\n";
 580         print '      <td class="intf"><img src="'.$_button_5_img.'" alt="o" class="intf"></td>'."\n";
 581         print '      <td class="intf"><a href="'.$_button_4_url.'"><img src="'.$_button_4_img.'" class="intf" alt="&gt;"></a></td>'."\n";
 582         print '      <td class="intf"><a href="'.$_button_3_url.'"><img src="'.$_button_3_img.'" class="intf" alt="&lt;&lt;"></a></td>'."\n";
 583         print '      <td class="intf"><a href="'.$_button_2_url.'"><img src="'.$_button_2_img.'" class="intf" alt="&gt;&gt;"></a></td>'."\n";
 584         print '      <td class="intf"><a href="'.$_button_1_url.'"><img src="'.$_button_1_img.'" class="intf" alt="^"></a></td>'."\n";
 585         print '      <td class="intf"><a href="'.$_button_0_url.'"><img src="'.$_button_0_img.'" class="intf" alt="||"></a></td>'."\n";
 586         print '     </tr>'."\n";
 587         print '    </table>'."\n";
 588         print '   </div>'."\n";
 589 }
 590
 591 print '   <div id="insb" class="ins">'."\n";
 592
 593 print '    <div id="undertext">'."\n";
 594 for (my $i = $id_start; $i > $id_stop; --$i) {
 595         $story_i_path = DATA_STORY_PATH.$i;
 596         %new_story = read_data_file($story_i_path);
 597         print '     <p class="'.(($i&1)?'br':'ni').'" id="s'.$i.'">'.html_entity_encode_dec($new_story{'content'}).'</p>'."\n";
 598 }
 599 print '    </div>'."\n";
 600
 601 print '    <div id="underlinks">'."\n";
 602 print '     <a href="'.$_bsta_url.'">BSTA</a> |'."\n";
 603 print '     <a href="'.$_twowords_url.'">Once again</a>';
 604 if ($older_available) {
 605         print ' |'."\n";
 606         print '     <a href="'.$_older_url.'">Before</a>';
 607 }
 608 if ($newer_available) {
 609         print ' |'."\n";
 610         print '     <a href="'.$newer_url.'">Unbefore</a>';
 611 }
 612 if ($older_available) {
 613         print ' |'."\n";
 614         print '<a href="'.$_oldest_url.'">Initially</a>';
 615 }
 616 if($turn) {
 617         print ' |'."\n";
 618         print '     (Entering words here is irreversible. Your actions might be remembered forever. So please be reasonable.)';
 619 }
 620 print "\n";
 621 print '    </div>'."\n";
 622
 623 print '   </div>'."\n";
 624
 625 print_html_body_end(\*STDOUT, $ong_state == STATE->{'inactive'});
 626 print_html_end(\*STDOUT);