Annotation of loncom/homework/edit.pm, revision 1.35

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # edit mode helpers
1.25      albertel    3: #
1.35    ! albertel    4: # $Id: edit.pm,v 1.34 2002/04/26 13:30:08 harris41 Exp $
1.25      albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA 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 General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.1       albertel   28: # 3/20 Guy
1.27      matthew    29: # 01/10/02 Matthew
1.29      matthew    30: # 03/06/02 Matthew
1.1       albertel   31: package Apache::edit; 
                     32: 
                     33: use strict;
1.32      albertel   34: use Apache::lonnet();
                     35: use HTML::Entities();
1.1       albertel   36: 
1.10      albertel   37: # Global Vars
                     38: # default list of colors to use in editing
                     39: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
                     40: # depth of nesting of edit
                     41: $Apache::edit::colordepth=0;
                     42: 
                     43: sub initialize_edit {
                     44:   $Apache::edit::colordepth=0;
                     45: }
                     46: 
1.1       albertel   47: sub tag_start {
1.9       albertel   48:   my ($target,$token,$description) = @_;
1.1       albertel   49:   my $result='';
1.5       albertel   50:   if ($target eq "edit") {
1.4       albertel   51:     my $tag=$token->[1];
1.22      albertel   52:     if (!$description) {
                     53:       $description=&Apache::lonxml::description($token);
                     54:       if (!$description) { $description="<$tag>"; }
                     55:     }
1.10      albertel   56:     $result.= &start_table($token)."<tr><td>$description</td>
1.14      albertel   57: <td>Delete".
1.8       albertel   58:   &deletelist($target,$token)
                     59:   ."</td>
1.4       albertel   60: <td>".
1.27      matthew    61:     &insertlist($target,$token).&end_row().&start_spanning_row();
                     62: #<td>". 
1.22      albertel   63: #  &movebuttons($target,$token).
                     64: #    "</tr><tr><td colspan=\"3\">\n";
1.4       albertel   65:   }
1.1       albertel   66:   return $result;
                     67: }
                     68: 
                     69: sub tag_end {
1.9       albertel   70:   my ($target,$token,$description) = @_;
1.1       albertel   71:   my $result='';
1.4       albertel   72:   if ($target eq 'edit') {
                     73:     my $tag=$token->[1];
1.9       albertel   74:     if (!defined($description)) {
1.14      albertel   75:       $result.="</td></tr><tr><td>&lt;/$tag&gt;</td><td colspan=\"2\">&nbsp;</td>";
1.9       albertel   76:     } else {
1.14      albertel   77:       if ($description ne '') { $result.="</td></tr><tr><td>$description</td><td colspan=\"2\">&nbsp;</td>"; }
1.9       albertel   78:     }
1.12      albertel   79:     $result.="</tr>".&end_table()."\n";
1.4       albertel   80:   }
                     81:   return $result;
                     82: }
1.1       albertel   83: 
1.10      albertel   84: sub start_table {
                     85:   my ($token)=@_;
                     86:   my $tag = $token->[1];
                     87:   my $tagnum;
                     88:   foreach my $namespace (reverse @Apache::lonxml::namespace) {
1.23      albertel   89:     my $testtag=$namespace.'::'.$tag;
1.10      albertel   90:     $tagnum=$Apache::lonxml::insertlist{"$testtag.num"};
                     91:     if (defined($tagnum)) { last; }
                     92:   }
                     93:   if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
                     94:   my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
                     95:   if (!defined($color)) {
                     96:     $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
                     97:   }
                     98:   $Apache::edit::colordepth++;
1.12      albertel   99:   my $result="<table bgcolor=\"$color\" width=\"100%\" border=\"5\">";
1.10      albertel  100:   return $result;
                    101: }
                    102: 
                    103: sub end_table {
                    104:   $Apache::edit::colordepth--;
                    105:   my $result="</table>";
                    106:   return $result;
                    107: }
                    108: 
1.27      matthew   109: sub start_spanning_row { return '<tr><td colspan="3">';}
                    110: sub start_row          { return '<tr><td>';            }
                    111: sub end_row            { return '</td></tr>';          }
                    112: 
1.22      albertel  113: sub movebuttons {
                    114:   my ($target,$token) = @_;
                    115:   my $result='<input type="submit" name="moveup.'.
                    116:     $Apache::lonxml::curdepth.'" value="Move Up" />';
                    117:   $result.='<input type="submit" name="movedown.'.
                    118:     $Apache::lonxml::curdepth.'" value="Move Down" />';
                    119:   return $result;
                    120: }
                    121: 
1.8       albertel  122: sub deletelist {
                    123:   my ($target,$token) = @_;
                    124:   my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14      albertel  125: <option></option>
                    126: <option>Yes</option>
1.8       albertel  127: </select>";
                    128:   return $result;
                    129: }
                    130: 
1.14      albertel  131: sub handle_delete {
                    132:   if (!$ENV{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
                    133:   my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    134:   my $result=0;
                    135:   if ($space) {
                    136:     my $sub1="$space\:\:delete_$token->[1]";
                    137:     {
                    138:       no strict 'refs';
                    139:       if (defined &$sub1) {
                    140: 	$result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
                    141:       }
                    142:     }
                    143:   }
                    144:   if (!$result) {
                    145:     my $endtag='/'.$token->[1];
                    146:     my $bodytext=&Apache::lonxml::get_all_text($endtag,$$parser[$#$parser]);
                    147:     $$parser['-1']->get_token();
                    148:     &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
                    149:     &Apache::lonxml::end_tag($tagstack,$parstack,$token);
                    150:   }
                    151:   return 1;
                    152: }
                    153: 
1.7       albertel  154: sub get_insert_list {
1.6       albertel  155:   my ($token) = @_;
                    156:   my $result='';
1.7       albertel  157:   my @tagnums= ();
                    158:   #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
1.6       albertel  159:   if ($Apache::lonxml::insertlist{"$token->[1].which"}) {
1.7       albertel  160:     push (@tagnums, @{ $Apache::lonxml::insertlist{"$token->[1].which"} });
                    161:   }
                    162:   foreach my $namespace (@Apache::lonxml::namespace) {
                    163:     if ($Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"}) {
                    164:       push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"} });
1.6       albertel  165:     }
                    166:   }
1.7       albertel  167:   if (@tagnums) {
1.33      albertel  168:     my %options;
1.7       albertel  169:     foreach my $tagnum (@tagnums) {
1.33      albertel  170:       my $descrip=$Apache::lonxml::insertlist{"$tagnum.description"};
                    171:       $options{$descrip} ="<option value=\"$tagnum\">".$descrip."</option>\n";
1.5       albertel  172:     }
1.33      albertel  173:     foreach my $option (sort(keys(%options))) { $result.=$options{$option}; }
1.5       albertel  174:     if ($result) { $result='<option selected="on"></option>'.$result; }
                    175:   }
                    176:   return $result;
                    177: }
                    178: 
1.4       albertel  179: sub insertlist {
1.8       albertel  180:   my ($target,$token) = @_;
1.4       albertel  181:   my $result;
                    182:   if ($target eq 'edit') {
1.5       albertel  183:     my $optionlist= &get_insert_list($token);
                    184:     if ($optionlist) {
                    185:       $result = "Insert:
1.4       albertel  186: <select name=\"insert_$Apache::lonxml::curdepth\">
1.5       albertel  187: $optionlist
1.4       albertel  188: </select>"
1.11      albertel  189:     } else {
                    190:       $result="&nbsp;";
1.6       albertel  191:     }
                    192:   }
                    193:   return $result;
                    194: }
                    195: 
1.7       albertel  196: sub handle_insert {
1.15      albertel  197:   if ($ENV{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
1.6       albertel  198:   my $result;
                    199:   my $tagnum = $ENV{"form.insert_$Apache::lonxml::curdepth"};
                    200:   my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
                    201:   if ($func eq 'default') {
                    202:     my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
1.7       albertel  203:     my $namespace;
                    204:     if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
1.6       albertel  205:     $result.="\n<$newtag>\n</$newtag>";
                    206:   } else {
1.15      albertel  207:     if (defined(&$func)) {
                    208:       {
                    209: 	no strict 'refs';
                    210: 	$result.=&$func();
                    211:       }
                    212:     } else {
                    213:       my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
                    214:       &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined.");
1.5       albertel  215:     }
                    216:   }
                    217:   return $result;
1.16      albertel  218: }
                    219: 
                    220: sub insert_responseparam {
                    221:   return '
                    222:     <responseparam />';
1.5       albertel  223: }
                    224: 
1.24      albertel  225: sub insert_formularesponse {
                    226:   return '
                    227: <formularesponse answer="" samples="">
                    228:     <textline />
                    229:     <hintgroup>
                    230:     </hintgroup>
                    231: </formularesponse>';
                    232: }
                    233: 
1.15      albertel  234: sub insert_numericalresponse {
                    235:   return '
                    236: <numericalresponse answer="">
                    237:     <textline />
                    238:     <hintgroup>
                    239:     </hintgroup>
                    240: </numericalresponse>';
                    241: }
                    242: 
1.18      albertel  243: sub insert_stringresponse {
                    244:   return '
                    245: <stringresponse answer="" type="">
                    246:     <textline />
                    247:     <hintgroup>
                    248:     </hintgroup>
                    249: </stringresponse>';
                    250: }
                    251: 
1.7       albertel  252: sub insert_optionresponse {
                    253:   return '
                    254: <optionresponse max="10">
                    255:     <foilgroup options="">
                    256:     </foilgroup>
1.14      albertel  257:     <hintgroup>
                    258:     </hintgroup>
1.7       albertel  259: </optionresponse>';
1.1       albertel  260: }
                    261: 
1.23      albertel  262: sub insert_radiobuttonresponse {
                    263:   return '
                    264: <radiobuttonresponse max="10">
                    265:     <foilgroup>
                    266:     </foilgroup>
                    267:     <hintgroup>
                    268:     </hintgroup>
                    269: </radiobuttonresponse>';
                    270: }
                    271: 
1.21      albertel  272: sub insert_displayduedate { return '<displayduedate />'; }
                    273: sub insert_displaytitle   { return '<displaytitle />'; }
1.22      albertel  274: sub insert_hintpart {
                    275:   return '
                    276: <hintpart on="default">
                    277:     <startouttext/>
                    278:     <endouttext />
                    279: </hintpart>';
                    280: }
                    281: 
                    282: sub insert_numericalhint {
                    283:   return '
                    284: <numericalhint>
                    285: </numericalhint>';
                    286: }
1.21      albertel  287: 
1.23      albertel  288: sub insert_startouttext {
                    289:   return "<startouttext />\n<endouttext />";
                    290: }
                    291: 
                    292: sub insert_script {
                    293:   return "\n<script type=\"loncapa/perl\">\n</script>";
                    294: }
                    295: 
1.25      albertel  296: sub textarea_sizes {
                    297:   my ($data)=@_;
                    298:   my $count=0;
                    299:   my $maxlength=-1;
1.26      harris41  300:   foreach (split ("\n", $$data)) { $count++;
1.25      albertel  301: 	if (length($_) > $maxlength) { $maxlength = length($_); }
1.26      harris41  302:       }
1.25      albertel  303:   my $rows = $count;
                    304:   my $cols = $maxlength;
                    305:   return ($rows,$cols);
                    306: }
                    307: 
1.32      albertel  308: sub editline {
1.31      matthew   309:     my ($tag,$data,$description,$size)=@_;
1.32      albertel  310:     $data=&HTML::Entities::encode($data);
1.31      matthew   311:     if ($description) { $description="<br />".$description."<br />"; }
                    312:     my $result = <<"END";
                    313: $description
                    314: <input type="text" name="homework_edit_$Apache::lonxml::curdepth" 
                    315:        value="$data" size="$size" />
                    316: END
                    317:     return $result;
                    318: }
                    319: 
1.2       albertel  320: sub editfield {
1.5       albertel  321:   my ($tag,$data,$description,$minwidth,$minheight)=@_;
1.22      albertel  322: 
1.25      albertel  323:   my ($rows,$cols)=&textarea_sizes(\$data);
                    324:   if ($cols > 80) { $cols = 80; }
                    325:   if ($cols < $minwidth ) { $cols = $minwidth; }
                    326:   if ($rows < $minheight) { $rows = $minheight; }
                    327:   if ($description) { $description="<br />".$description."<br />"; }
1.32      albertel  328:   return $description."\n".'&nbsp;&nbsp;&nbsp;<textarea rows="'.$rows.
                    329:     '" cols="'.$cols.'" name="homework_edit_'.$Apache::lonxml::curdepth.'">'.
                    330:       &HTML::Entities::encode($data).'</textarea>'."\n";
1.2       albertel  331: }
                    332: 
                    333: sub modifiedfield {
                    334:   my ($token) = @_;
1.3       albertel  335:   my $result;
                    336: #  foreach my $envkey (sort keys %ENV) {
                    337: #    &Apache::lonxml::debug("$envkey ---- $ENV{$envkey}");
                    338: #  }
                    339: #  &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
                    340: #  &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});
                    341:   $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};
                    342:   return $result;
1.2       albertel  343: }
                    344: 
1.15      albertel  345: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12      albertel  346: # side-effects, will modify the $token if new values are found
                    347: sub get_new_args {
                    348:   my ($token,$parstack,$safeeval,@args)=@_;
                    349:   my $rebuild=0;
                    350:   foreach my $arg (@args) {
1.20      albertel  351:     #just want the string that it was set to
                    352:     my $value=$token->[2]->{$arg};
1.12      albertel  353:     my $newvalue=$ENV{"form.$Apache::lonxml::curdepth.$arg"};
                    354:     &Apache::lonxml::debug(" for:$arg: cur is :$value: new is :$newvalue:");
                    355:     if ($value ne $newvalue) {
                    356:       $token->[2]->{$arg}=$newvalue;
                    357:       $rebuild=1;
                    358:     }
                    359:   }
                    360:   return $rebuild;
                    361: }
                    362: 
1.15      albertel  363: # looks for /> on start tags
1.12      albertel  364: sub rebuild_tag {
                    365:   my ($token) = @_;
                    366:   my $result;
                    367:   if ($token->[0] eq 'S') {
                    368:     $result = '<'.$token->[1];
                    369:     while (my ($key,$val)= each(%{$token->[2]})) {
1.20      albertel  370:       $val=~s:^\s+|\s+$::g;
1.17      albertel  371:       $val=~s:"::g; #"
1.12      albertel  372:       &Apache::lonxml::debug("setting :$key: to  :$val:");
                    373:       $result.=' '.$key.'="'.$val.'"';
                    374:     }
1.15      albertel  375:     if ($token->[4] =~ m:/>$:) {
                    376:       $result.=' />';
                    377:     } else {
                    378:       $result.='>';
                    379:     }
1.12      albertel  380:   } elsif ( $token->[0] eq 'E' ) {
                    381:     $result = '</'.$token->[1].'>';
                    382:   }
                    383:   return $result;
                    384: }
1.13      albertel  385: 
                    386: sub text_arg {
                    387:   my ($description,$name,$token,$size) = @_;
                    388:   my $result;
                    389:   if (!defined $size) { $size=20; }
                    390:   my $arg=$token->[2]{$name};
                    391:   $result=$description.'<input name="'."$Apache::lonxml::curdepth.$name".
                    392:     '" type="text" value="'.$arg.'" size="'.$size.'" />';
                    393:   return $result;
                    394: }
                    395: 
                    396: sub select_arg {
                    397:   my ($description,$name,$list,$token) = @_;
                    398:   my $result;
                    399:   my $optionlist="";
                    400:   my $selected=$token->[2]{$name};
                    401:   foreach my $option (@$list) {
                    402:     if ( $selected eq $option ) {
                    403:       $optionlist.="<option selected=\"on\">$option</option>\n";
                    404:     } else {
                    405:       $optionlist.="<option>$option</option>\n";
                    406:     }
                    407:   }
                    408:   $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
                    409:        '.$optionlist.'
1.27      matthew   410:       </select>';
1.13      albertel  411:   return $result;
                    412: }
                    413: 
1.19      albertel  414: sub select_or_text_arg {
                    415:   my ($description,$name,$list,$token,$size) = @_;
                    416:   my $result;
                    417:   my $optionlist="";
                    418:   my $found=0;
                    419:   my $selected=$token->[2]{$name};
                    420:   foreach my $option (@$list) {
                    421:     if ( $selected eq $option ) {
                    422:       $optionlist.="<option selected=\"on\">$option</option>\n";
                    423:       $found=1;
                    424:     } else {
                    425:       $optionlist.="<option>$option</option>\n";
                    426:     }
                    427:   }
                    428:   $optionlist.="<option value=\"TYPEDINVALUE\">Type in value</option>\n";
1.35    ! albertel  429:   if (($found) || (!$selected)) {
1.19      albertel  430:     $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
                    431:        '.$optionlist.'
1.27      matthew   432:       </select>';
1.19      albertel  433:   } else {
                    434:     $result.=&text_arg($description,$name,$token,$size);
                    435:   }
                    436:   return $result;
                    437: }
1.29      matthew   438: 
                    439: #----------------------------------------------------- browse
                    440: sub browse {
                    441:     # insert a link to call up the filesystem browser (lonindexer)
1.30      matthew   442:     $_ = shift;
1.29      matthew   443:     my $form    = 'lonhomework';
1.30      matthew   444:     my $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$_");
1.29      matthew   445:     my $result = <<"ENDBUTTON";
                    446: <a href=\"javascript:openbrowser('$form','$element')\"\>Browse</a>
                    447: ENDBUTTON
                    448:     return $result;
                    449: }
                    450: 
1.30      matthew   451: #----------------------------------------------------- browse
                    452: sub search {
                    453:     # insert a link to call up the filesystem browser (lonindexer)
                    454:     $_ = shift;
                    455:     my $form    = 'lonhomework';
                    456:     my $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$_");
                    457:     my $result = <<"ENDBUTTON";
                    458: <a href=\"javascript:opensearcher('$form','$element')\"\>Search</a>
                    459: ENDBUTTON
                    460:     return $result;
                    461: }
                    462: 
                    463: 
1.1       albertel  464: 1;
                    465: __END__
1.26      harris41  466: 
                    467: =head1 NAME
                    468: 
                    469: Apache::edit - edit mode helpers
                    470: 
                    471: =head1 SYNOPSIS
                    472: 
                    473: Invoked by many homework and xml related modules.
                    474: 
                    475:  &Apache::edit::SUBROUTINENAME(ARGUMENTS);
                    476: 
                    477: =head1 INTRODUCTION
                    478: 
                    479: This module outputs HTML syntax helpful for the rendering of edit
                    480: mode interfaces.
                    481: 
                    482: This is part of the LearningOnline Network with CAPA project
                    483: described at http://www.lon-capa.org.
                    484: 
                    485: =head1 HANDLER SUBROUTINE
                    486: 
                    487: There is no handler subroutine.
                    488: 
                    489: =head1 OTHER SUBROUTINES
                    490: 
                    491: =over 4
                    492: 
                    493: =item *
                    494: 
                    495: initialize_edit() : initialize edit (set colordepth to zero)
                    496: 
                    497: =item *
                    498: 
                    499: tag_start($target,$token,$description) : provide deletion and insertion lists
                    500: for the manipulation of a start tag; return a scalar string
                    501: 
                    502: =item *
                    503: 
                    504: tag_end($target,$token,$description) : ending syntax corresponding to
                    505: &tag_start. return a scalar string.
                    506: 
                    507: =item *
                    508: 
                    509: start_table($token) : start table; update colordepth; return scalar string.
                    510: 
                    511: =item *
                    512: 
                    513: end_table() : reduce color depth; end table; return scalar string
1.27      matthew   514: 
                    515: =item *
                    516: 
                    517: start_spanning_row() : start a new table row spanning the 'edit' environment.
                    518: 
                    519: =item *
                    520: 
                    521: start_row() : start a new table row and element. 
                    522: 
                    523: =item *
                    524: 
                    525: end_row() : end current table element and row.
1.26      harris41  526: 
                    527: =item *
                    528: 
                    529: movebuttons($target,$token) : move-up and move-down buttons; return scalar
                    530: string
                    531: 
                    532: =item *
                    533: 
                    534: deletelist($target,$token) : provide a yes option in an HTML select element;
                    535: return scalar string
                    536: 
                    537: =item *
                    538: 
                    539: handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
                    540: $style) : respond to a user delete request by passing relevant stack
                    541: and array information to various rendering functions; return a scalar string
                    542: 
                    543: =item *
                    544: 
                    545: get_insert_list($token) : provide an insertion list based on possibilities
                    546: from lonxml; return a scalar string
                    547: 
                    548: =item *
                    549: 
                    550: insertlist($target,$token) : api that uses get_insert_list;
                    551: return a scalar string
                    552: 
                    553: =item *
                    554: 
                    555: handleinsert($token) : provide an insertion list based on possibilities
                    556: from lonxml; return a scalar string
                    557: 
                    558: =item *
                    559: 
                    560: get_insert_list($token) : provide an insertion list based on possibilities
                    561: from lonxml; return a scalar string
1.29      matthew   562: 
                    563: =item *
                    564: browse($elementname) : provide a link which will open up the filesystem
                    565: browser (lonindexer) and, once a file is selected, place the result in
1.30      matthew   566: the form element $elementname.
                    567: 
                    568: =item *
                    569: search($elementname) : provide a link which will open up the filesystem
                    570: searcher (lonsearchcat) and, once a file is selected, place the result in
1.29      matthew   571: the form element $elementname.
1.31      matthew   572: 
1.34      harris41  573: =item *
1.32      albertel  574: editline(tag,data,description,size): Provide a <input type="text" ../> for
1.31      matthew   575: single-line text entry.  This is to be used for text enclosed by tags, not
                    576: arguements/parameters associated with a tag.
1.26      harris41  577: 
                    578: =back
                    579: 
                    580: incomplete...
                    581: 
                    582: =cut

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