Annotation of loncom/homework/structuretags.pm, revision 1.524
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.524 ! raeburn 4: # $Id: structuretags.pm,v 1.523 2014/11/21 18:04:57 raeburn Exp $
1.74 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: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
227: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 228: &setmode_javascript().
1.400 albertel 229: <<'JS';
230: <script type="text/javascript">
1.483 raeburn 231: // <![CDATA[
1.494 raeburn 232: function setSubmittedPart (part,prefix) {
233: if (typeof(prefix) == 'undefined') {
234: this.document.lonhomework.submitted.value="part_"+part;
235: } else {
236: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
237: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
238: this.document.lonhomework.elements[i].value="part_"+part;
239: }
240: }
241: }
1.400 albertel 242: }
243:
244: function image_response_click (which, e) {
245: init_geometry();
246: if (!e) { e = window.event; } //IE
247: var input_element = document.lonhomework.elements[which];
1.401 albertel 248: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 249: var token = token_element.value;
1.401 albertel 250: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 251: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
252: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
253: var click = x+':'+y;
254: input_element.value = click;
1.485 raeburn 255: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 256: }
1.520 raeburn 257:
258: var submithandled = 0;
1.521 raeburn 259: var keypresshandled = 0;
1.520 raeburn 260:
261: $(document).ready(function(){
1.521 raeburn 262:
263: $(document).keypress(function(event){
264: var keycode = (event.keyCode ? event.keyCode : event.which);
265: if ((keycode == '13') && (keypresshandled == 0)) {
266: if ( $( document.activeElement ).hasClass("LC_textline") ) {
267: keypresshandled = 1;
268: var idsArray = $( document.activeElement ).attr("id").split(/HWVAL_/);
269: if (idsArray.length) {
270: event.preventDefault();
271: var itemsArray = idsArray[1].split(/_/);
272: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
273: $("#"+buttonId).trigger("click");
274: }
275: }
276: }
277: });
278:
1.520 raeburn 279: $(document).delegate('form :submit', 'click', function( event ) {
280: if ( $( this ).hasClass( "LC_hwk_submit" ) ) {
281: var buttonId = this.id;
282: if (submithandled == 0) {
283: submithandled = 1;
284: $( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 285: "color": "black","padding": "2px"}) ;
286: if (( $(this.form).id == "LC_page" ) && ($('input[name="all_submit"]').length )) {
1.522 raeburn 287: if (buttonId != "all_submit") {
288: $( ".LC_status_"+buttonId ).hide();
289: if (( "#"+buttonId+"_pressed" ).length) {
290: $( "#"+buttonId+"_pressed" ).val( "1" );
291: }
1.520 raeburn 292: }
1.522 raeburn 293: } else {
294: $( ".LC_status_"+buttonId ).hide();
1.520 raeburn 295: }
296: $(this.form).submit();
1.521 raeburn 297: $( ".LC_hwk_submit" ).prop( "disabled", true);
298: $( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 299: event.preventDefault();
300: return true;
301: }
302: }
303: });
304: });
305:
1.483 raeburn 306: // ]]>
1.400 albertel 307: </script>
308: JS
309: }
310:
1.416 raeburn 311: sub setmode_javascript {
312: return <<"ENDSCRIPT";
313: <script type="text/javascript">
1.485 raeburn 314: // <![CDATA[
1.416 raeburn 315: function setmode(form,probmode) {
316: form.problemmode.value = probmode;
317: form.submit();
318: }
1.485 raeburn 319: // ]]>
1.416 raeburn 320: </script>
321: ENDSCRIPT
322: }
323:
1.48 albertel 324: sub page_start {
1.345 albertel 325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
326: $extra_head)=@_;
1.159 albertel 327: my %found;
1.207 albertel 328: foreach my $taginside (@$tagstack) {
1.159 albertel 329: foreach my $taglookedfor ('html','body','form') {
330: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
331: }
332: }
333:
1.343 albertel 334: if ($target eq 'tex') {
335: return
336: &Apache::londefdef::start_html($target,$token,$tagstack,
337: $parstack,$parser,$safeeval);
338: }
339:
1.474 raeburn 340: $extra_head .= &homework_js().
341: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
342: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
343: my %textarea_args = (
344: dragmath => 'math',
345: );
346: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 347: }
1.478 raeburn 348: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 349: my $needs_upload;
1.495 raeburn 350: my ($symb)= &Apache::lonnet::whichuser();
351: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 352: if ($is_task) {
1.495 raeburn 353: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 354: } else {
355: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 356: unless ($env{'request.state'} eq 'construct') {
357: my $navmap = Apache::lonnavmaps::navmap->new();
358: if (ref($navmap)) {
359: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 360: my $is_page;
361: if (ref($mapres)) {
362: $is_page = $mapres->is_page();
363: }
364: unless ($is_page) {
1.495 raeburn 365: $needs_upload = 1;
366: }
367: }
368: }
1.493 raeburn 369: } else {
370: unless ($env{'request.state'} eq 'construct') {
371: my $navmap = Apache::lonnavmaps::navmap->new();
372: if (ref($navmap)) {
1.495 raeburn 373: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 374: my $is_page;
375: if (ref($mapres)) {
376: $is_page = $mapres->is_page();
377: }
378: unless ($is_page) {
1.495 raeburn 379: my $res = $navmap->getBySymb($symb);
380: if (ref($res)) {
381: my $partlist = $res->parts();
382: if (ref($partlist) eq 'ARRAY') {
383: foreach my $part (@{$partlist}) {
384: my @types = $res->responseType($part);
385: my @ids = $res->responseIds($part);
386: for (my $i=0; $i < scalar(@ids); $i++) {
387: if ($types[$i] eq 'essay') {
388: my $partid = $part.'_'.$ids[$i];
389: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
390: $needs_upload = 1;
391: last;
392: }
1.493 raeburn 393: }
394: }
395: }
1.495 raeburn 396: }
397: }
1.493 raeburn 398: }
399: }
400: }
401: }
1.495 raeburn 402: if ($needs_upload) {
403: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
404: }
1.478 raeburn 405: }
1.425 raeburn 406:
1.344 albertel 407: my %body_args;
408: if (defined($found{'html'})) {
409: $body_args{'skip_phases'}{'head'}=1;
410: } else {
1.343 albertel 411:
1.345 albertel 412: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 413:
1.379 albertel 414: $extra_head .= &Apache::londefdef::generate_css_links();
415:
1.384 albertel 416: if ($env{'request.state'} eq 'construct') {
1.343 albertel 417: $extra_head.=&Apache::edit::js_change_detection().
418: "<script type=\"text/javascript\">\n".
419: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
420: &Apache::loncommon::browser_and_searcher_javascript().
421: "\n</script>\n";
422: }
1.159 albertel 423: }
1.343 albertel 424:
1.446 bisitz 425: my $pageheader = '';
1.344 albertel 426: if (defined($found{'body'})) {
427: $body_args{'skip_phases'}{'body'}=1;
428: } elsif (!defined($found{'body'})
429: && $env{'request.state'} eq 'construct') {
1.343 albertel 430: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 431: # Breadcrumbs for Authoring Space
1.450 bisitz 432: &Apache::lonhtmlcommon::clear_breadcrumbs();
433: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 434: 'text' => 'Authoring Space',
1.497 raeburn 435: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 436: });
1.460 droeschl 437: # breadcrumbs (and tools) will be created
438: # in start_page->bodytag->innerregister
439:
1.450 bisitz 440: # FIXME Where are we?
441: # &Apache::lonhtmlcommon::add_breadcrumb({
442: # 'text' => 'Problem Editing', # 'Problem Testing'
443: # 'href' => '',
444: # });
1.460 droeschl 445: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 446: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 447: }
1.272 albertel 448: } elsif (!defined($found{'body'})) {
1.343 albertel 449: my %add_entries;
1.159 albertel 450: my $background=&Apache::lonxml::get_param('background',$parstack,
451: $safeeval);
1.343 albertel 452: if ($background ne '' ) {
453: $add_entries{'background'} = $background;
454: }
1.344 albertel 455:
1.290 albertel 456: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
457: $safeeval);
1.446 bisitz 458: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 459:
1.446 bisitz 460: $body_args{'bgcolor'} = $bgcolor;
461: # $body_args{'no_title'} = 1;
462: $body_args{'force_register'} = 1;
463: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 464: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 465: $body_args{'only_body'} = 1;
1.518 raeburn 466: } elsif ($target eq 'web') {
467: $body_args{'print_suppress'} = 1;
1.446 bisitz 468: }
1.344 albertel 469: }
1.365 albertel 470: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 471: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
472: \%body_args);
1.446 bisitz 473: $page_start .= $pageheader;
1.462 raeburn 474: if (!defined($found{'body'})
475: && $env{'request.state'} ne 'construct'
476: && ($target eq 'web' || $target eq 'webgrade')) {
477:
478: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
479: if ($symb eq '' && !$publicuser) {
480: $page_start .= '<p class="LC_info">'
481: .&mt('Browsing resource, all submissions are temporary.')
482: .'</p>';
1.457 bisitz 483: }
1.344 albertel 484: }
485:
1.409 albertel 486: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 487: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 488: }
489: my $form_tag_start;
490: if (!defined($found{'form'})) {
1.337 albertel 491: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 492: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 493: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 494: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 495: $form_tag_start.=$uri.'" ';
496: if ($target eq 'edit') {
497: $form_tag_start.=&Apache::edit::form_change_detection();
498: }
1.493 raeburn 499: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
500: my ($path,$multiresp) =
501: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 502: if (($is_task) || ($needs_upload)) {
503: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 504: }
1.368 albertel 505: $form_tag_start.='>'."\n";
1.355 albertel 506:
507: if ($symb =~ /\S/) {
508: $symb=
509: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
510: $form_tag_start.=
1.368 albertel 511: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 512: }
1.159 albertel 513: }
1.343 albertel 514: return ($page_start,$form_tag_start);
1.105 albertel 515: }
516:
1.141 matthew 517: #use Time::HiRes();
1.105 albertel 518: sub get_resource_name {
1.159 albertel 519: my ($parstack,$safeeval)=@_;
1.388 foxr 520: my $name;
1.204 albertel 521: if (defined($Apache::lonhomework::name)) {
1.388 foxr 522: $name = $Apache::lonhomework::name;
523: } else {
524: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 525: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 526: if ($name eq '') {
527: $name=&Apache::lonnet::EXT('resource.title');
528: if ($name eq 'con_lost') { $name = ''; }
529: }
530: if ($name!~/\S+/) {
531: $name=$env{'request.uri'};
532: $name=~s-.*/([^/]+)$-$1-;
533: }
534: # The name has had html tags escaped:
535:
536: $name=~s/</</gs;
537: $name=~s/>/>/gs;
538:
539: $Apache::lonhomework::name=$name;
1.204 albertel 540: }
1.159 albertel 541: return $name;
1.105 albertel 542: }
543:
544: sub setup_rndseed {
1.479 raeburn 545: my ($safeeval,$target)=@_;
1.367 albertel 546: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 547: my ($questiontype,$set_safespace,$rndseed);
548: if ($target eq 'analyze') {
549: $questiontype = $env{'form.grade_questiontype'};
550: }
551: unless (defined($questiontype)) {
552: $questiontype = $Apache::lonhomework::type;
553: }
1.333 albertel 554: if ($env{'request.state'} eq "construct"
555: || $symb eq ''
556: || $Apache::lonhomework::type eq 'practice'
557: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 558: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 559: ['rndseed']);
1.284 albertel 560: $rndseed=$env{'form.rndseed'};
1.159 albertel 561: if (!$rndseed) {
1.162 albertel 562: $rndseed=$Apache::lonhomework::history{'rndseed'};
563: if (!$rndseed) {
564: $rndseed=time;
565: }
1.284 albertel 566: $env{'form.rndseed'}=$rndseed;
1.162 albertel 567: }
1.479 raeburn 568: if (($env{'request.state'} eq "construct") &&
569: ($Apache::lonhomework::type eq 'randomizetry')) {
570: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
571: if ($tries) {
572: $rndseed += $tries;
573: }
1.480 raeburn 574: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 575: }
1.374 albertel 576: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
577: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 578: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 579: srand(time);
580: $rndseed=int(rand(2100000000));
1.284 albertel 581: $env{'form.rndseed'}=$rndseed;
582: delete($env{'form.resetdata'});
583: delete($env{'form.newrandomization'});
1.159 albertel 584: }
1.488 www 585: $rndseed=~s/\,/\:/g;
586: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 587: if (defined($rndseed)) {
588: my ($c1,$c2)=split(/\:/,$rndseed);
589: unless ($c2) { $c2=0; }
590: unless (($c1==int($c1)) && ($c2==int($c2))) {
591: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
592: }
1.187 albertel 593: }
1.247 albertel 594: if ($Apache::lonhomework::history{'resource.CODE'}) {
595: $rndseed=&Apache::lonnet::rndseed();
596: }
1.479 raeburn 597: $set_safespace = 1;
598: } elsif ($questiontype eq 'randomizetry') {
599: if ($target eq 'analyze') {
600: if (defined($env{'form.grade_rndseed'})) {
601: $rndseed = $env{'form.grade_rndseed'};
602: }
603: }
604: unless (($target eq 'analyze') && (defined($rndseed))) {
605: $rndseed=&Apache::lonnet::rndseed();
606: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
607: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
608: $curr_try ++;
609: }
610: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
611: $rndseed = $1;
612: }
613: if ($curr_try) {
614: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
615: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
616: my $inc = int(($curr_try-1)/$reqtries);
617: $rndseed += $inc;
618: } else {
619: $rndseed += $curr_try;
620: }
621: }
622: }
623: $set_safespace = 1;
624: }
625: if ($set_safespace) {
626: if ($safeeval) {
627: &Apache::lonxml::debug("Setting rndseed to $rndseed");
628: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
629: }
630: }
631: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
632: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 633: }
634: return $rndseed;
1.105 albertel 635: }
636:
1.268 albertel 637: sub remember_problem_state {
638: return '
1.284 albertel 639: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
640: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
641: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 642: }
643:
1.487 www 644: sub problem_edit_action_button {
645: my ($name,$action,$accesskey,$text,$flag)=@_;
646: my $actionscript="setmode(this.form,'$action')";
647: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
648: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
649: }
650:
1.423 www 651: sub problem_edit_buttons {
1.487 www 652: my ($mode)=@_;
653: # Buttons that do not save
654: my $result='<div class="LC_edit_problem_discards">'.
655: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
656: if ($mode eq 'editxml') {
657: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
658: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
659: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
660: } else {
661: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
662: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
663: }
664: $result.="\n</div>";
665: # Buttons that save
666: $result.='<div class="LC_edit_problem_saves">';
667: if ($mode eq 'editxml') {
668: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
669: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
670: } else {
671: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
672: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
673: }
674: $result.="\n</div>\n";
675: return $result;
1.423 www 676: }
677:
678: sub problem_edit_header {
1.487 www 679: return '<input type="hidden" name="submitted" value="edit" />'.
680: &remember_problem_state('edit').'
1.423 www 681: <div class="LC_edit_problem_header">
682: <div class="LC_edit_problem_header_title">
683: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
684: </div>'.
1.487 www 685: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 686: &problem_edit_buttons().'
1.459 bisitz 687: <hr style="clear:both;" />
1.409 albertel 688: '.&Apache::lonxml::message_location().'
1.408 albertel 689: </div>
690: '.
1.515 golterma 691: '<table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 692: }
693:
694: sub problem_edit_footer {
1.412 albertel 695: return '</td></tr></table><br />
696: <div class="LC_edit_problem_footer">
1.453 bisitz 697: <hr />'.
1.423 www 698: &problem_edit_buttons().'
1.459 bisitz 699: <hr style="clear:both;" />
1.412 albertel 700: </div>
701: '.
1.342 albertel 702: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 703: }
704:
1.235 albertel 705: sub option {
706: my ($value,$name) = @_;
707: my $result ="<option value='".$value."' ";
1.284 albertel 708: if ($env{'form.'.$name} eq $value) {
1.235 albertel 709: $result.=" selected='on' ";
710: }
711: $result.='>';
712: return $result;
713: }
714:
1.105 albertel 715: sub problem_web_to_edit_header {
1.159 albertel 716: my ($rndseed)=@_;
1.406 albertel 717: my $result .= '<div class="LC_edit_problem_header">';
718:
719: if (!$Apache::lonhomework::parsing_a_task) {
720: $result .=
721: '<div class="LC_edit_problem_header_title">'.
722: &mt('Problem Testing').
723: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
724: '</div>';
725: } else {
726: $result .=
727: '<div class="LC_edit_problem_header_title">'.
728: &mt('Task Testing').
729: '</div>';
730: }
731:
1.315 albertel 732: my $show_all_foils_text =
733: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 734: &mt('Show All Instances')
735: : &mt('Show All Foils');
1.315 albertel 736:
1.452 bisitz 737: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
738: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 739: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 740: $show_all.= ' /> '.$show_all_foils_text
741: .'</label></span>';
1.406 albertel 742:
743:
1.384 albertel 744:
1.406 albertel 745: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 746: if (!$Apache::lonhomework::parsing_a_task) {
747: $result.="
1.406 albertel 748: <div class='LC_edit_problem_header_row1'>
749: <span class=\"LC_nobreak\">
1.405 albertel 750: ".&mt("Problem Status:")."
1.235 albertel 751: <select name='problemstate'>
1.270 albertel 752: <option value=''></option>
1.235 albertel 753: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
754: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
755: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
756: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
757: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
758: </select>
1.406 albertel 759: </span>
760: <span class=\"LC_nobreak\">
1.405 albertel 761: ".&mt("Problem Type:")."
1.235 albertel 762: <select name='problemtype'>
1.270 albertel 763: <option value=''></option>
1.509 bisitz 764: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 765: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 766: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 767: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
768: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
769: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 770: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 771: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 772: </select>
1.406 albertel 773: </span>
774: $show_all
775: </div>
776: <div class='LC_edit_problem_header_row2'>
777: <span class=\"LC_nobreak\">
1.405 albertel 778: ".&mt("Feedback Mode:")."
1.235 albertel 779: <select name='problemstatus'>
780: <option value=''></option>
1.242 albertel 781: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 782: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 783: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 784: </select>
1.406 albertel 785: </span>
786: ";
787:
1.376 albertel 788: } elsif ($Apache::lonhomework::parsing_a_task) {
789: $result.="
1.406 albertel 790: <div class='LC_edit_problem_header_row1'>
791: <span class=\"LC_nobreak\">
1.405 albertel 792: ".&mt("Problem Status:")."
1.376 albertel 793: <select name='problemstate'>
794: <option value=''></option>
795: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
796: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
797: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
798: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
799: </select>
1.406 albertel 800: </span>
801: $show_all
802: ";
803: }
804: $result.='
805: <span class="LC_nobreak">
806: '.&mt('Apply style file: ').'
807: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
808: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
809: </span>
1.422 www 810: </div>
811: <div class="LC_edit_problem_header_row1">'.
812: &Apache::lonxml::renderingoptions().'
1.406 albertel 813: </div>
814: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
815: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
816: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
817: </div>
1.453 bisitz 818: <hr />
1.406 albertel 819: <div class="LC_edit_problem_header_randomize_row">
820: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
821: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 822: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 823: $rndseed.'"
824: onchange="javascript:document.lonhomework.changerandseed.click()" />';
825:
826: if (!$Apache::lonhomework::parsing_a_task) {
827: my $numtoanalyze=$env{'form.numtoanalyze'};
828: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 829: $result .= '<span class="LC_nobreak">'.
830: &mt('[_1] for [_2] versions.',
1.416 raeburn 831: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 832: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
833: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 834: $numtoanalyze.'" size="5" />').
835: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
836: '</span>';
837:
1.313 albertel 838: }
1.406 albertel 839:
840: $result.='
841: </div>
1.453 bisitz 842: <hr />
1.447 bisitz 843: <div>';
1.416 raeburn 844: $result.='<input type="hidden" name="problemmode" value="view" />';
845: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
846: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
847: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
848: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 849: $result.='
850: </div>
1.453 bisitz 851: <hr />
1.409 albertel 852: '.&Apache::lonxml::message_location().'
1.406 albertel 853: </div>';
1.159 albertel 854: return $result;
1.48 albertel 855: }
856:
1.65 albertel 857: sub initialize_storage {
1.357 albertel 858: my ($given_symb) = @_;
1.353 albertel 859: undef(%Apache::lonhomework::results);
860: undef(%Apache::lonhomework::history);
1.357 albertel 861: my ($symb,$courseid,$domain,$name) =
1.367 albertel 862: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 863:
864: # anonymous users (CODEd exams) have no data
865: if ($name eq 'anonymous'
866: && !defined($domain)) {
867: return;
868: }
869:
1.333 albertel 870: if ($env{'request.state'} eq 'construct'
871: || $symb eq ''
872: || $Apache::lonhomework::type eq 'practice') {
873:
874: my $namespace = $symb || $env{'request.uri'};
875: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 876: ($env{'form.resetdata'} eq &mt('New Problem Variation')
877: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 878: $env{'form.newrandomization'} eq &mt('New Randomization')) {
879: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
880: &Apache::lonxml::debug("Attempt reset");
881: }
1.159 albertel 882: %Apache::lonhomework::history=
1.333 albertel 883: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 884: my ($temp)=keys %Apache::lonhomework::history ;
885: &Apache::lonxml::debug("Return message of $temp");
886: } else {
887: %Apache::lonhomework::history=
888: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
889: }
1.353 albertel 890:
1.159 albertel 891: #ignore error conditions
1.67 albertel 892: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 893: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 894: }
895:
1.435 jms 896: =pod
897:
898: =item finalize_storage()
899:
1.524 ! raeburn 900: Stores away the result hash to a student's environment;
1.523 raeburn 901: checks form.grade_ for specific values, otherwise stores
902: to the running user's environment.
1.524 ! raeburn 903:
! 904: &check_correctness_changes() is called in two circumstances
! 905: in which the results hash is to be stored permanently, for
! 906: grading triggered by a student's submission, where feedback on
! 907: correctness is to be provided to the student.
! 908:
! 909: 1. Immediately prior to storing the results hash
! 910:
! 911: To handle the case where a student's submission (and award) were
! 912: stored after history was retrieved in &initialize_storage(), e.g.,
! 913: if a student submitted answers in quick succession (e.g., from
! 914: multiple tabs). &Apache::inputtags::hidealldata() is called for
! 915: any parts with out-of-order storage (i.e., correct then incorrect,
! 916: where awarded >= 1 when correct).
! 917:
! 918: 2. Immediately after storing the results hash
! 919:
! 920: To handle the case where lond on the student's homeserver returns
! 921: delay:N -- where N is the number of transactions between the last
! 922: retrieved in &initialize_storage() and the last stored immediately
! 923: before permanent storage of the current transaction via
! 924: lond::store_handler(). &Apache::grades::makehidden() is called
! 925: for any parts with out-of-order storage (i.e., correct then incorrect,
! 926: where awarded >= 1 when correct).
! 927:
! 928: Will call &store_aggregates() to increment totals for attempts,
! 929: students, and corrects, if running user has student role.
! 930:
1.435 jms 931: =cut
932:
933:
1.65 albertel 934: sub finalize_storage {
1.357 albertel 935: my ($given_symb) = @_;
1.159 albertel 936: my $result;
1.289 albertel 937: if (%Apache::lonhomework::results) {
1.323 albertel 938: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
939: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 940: my ($symb,$courseid,$domain,$name) =
1.367 albertel 941: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 942: if ($env{'request.state'} eq 'construct'
943: || $symb eq ''
944: || $Apache::lonhomework::type eq 'practice') {
945: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 946: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 947: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 948: $namespace,'',$domain,$name);
1.159 albertel 949: &Apache::lonxml::debug('Construct Store return message:'.$result);
950: } else {
1.524 ! raeburn 951: my ($laststore,$checkedparts,@parts,%postcorrect);
! 952: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
! 953: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
! 954: (!defined($env{'form.grade_courseid'}))) {
! 955: if ($Apache::lonhomework::history{'version'}) {
! 956: $laststore = $Apache::lonhomework::history{'version'}.'='.
! 957: $Apache::lonhomework::history{'timestamp'};
! 958: } else {
! 959: $laststore = '0=0';
! 960: }
! 961: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
! 962: if ($record{'version'}) {
! 963: my ($newversion,$oldversion,$oldtimestamp);
! 964: if ($Apache::lonhomework::history{'version'}) {
! 965: $oldversion = $Apache::lonhomework::history{'version'};
! 966: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
! 967: } else {
! 968: $oldversion = 0;
! 969: $oldtimestamp = 0;
! 970: }
! 971: if ($record{'version'} > $oldversion) {
! 972: if ($record{'timestamp'} >= $oldtimestamp) {
! 973: $laststore = $record{'version'}.'='.$record{'timestamp'};
! 974: $newversion = $record{'version'} + 1;
! 975: $checkedparts = 1;
! 976: foreach my $key (keys(%Apache::lonhomework::results)) {
! 977: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
! 978: my $part = $1;
! 979: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
! 980: push(@parts,$part);
! 981: }
! 982: }
! 983: }
! 984: if (@parts) {
! 985: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
! 986: \%record,\@parts,$newversion,
! 987: $oldversion);
! 988: if (@parts_to_hide) {
! 989: foreach my $part (@parts_to_hide) {
! 990: $postcorrect{$part} = 1;
! 991: &Apache::inputtags::hidealldata($part);
! 992: }
! 993: }
! 994: }
! 995: }
! 996: }
! 997: }
! 998: }
1.159 albertel 999: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 ! raeburn 1000: $symb,$courseid,$domain,$name,$laststore);
! 1001: if ($result =~ /^delay\:(\d+)$/) {
! 1002: my $numtrans = $1;
! 1003: my ($oldversion) = split(/=/,$laststore);
! 1004: if ($numtrans) {
! 1005: my $newversion = $oldversion + 1 + $numtrans;
! 1006: my @possparts;
! 1007: if ($checkedparts) {
! 1008: foreach my $part (@parts) {
! 1009: unless ($postcorrect{$part}) {
! 1010: push(@possparts,$part);
! 1011: }
! 1012: }
! 1013: } else {
! 1014: foreach my $key (keys(%Apache::lonhomework::results)) {
! 1015: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
! 1016: my $part = $1;
! 1017: unless ($postcorrect{$part}) {
! 1018: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
! 1019: push(@possparts,$part);
! 1020: }
! 1021: }
! 1022: }
! 1023: }
! 1024: }
! 1025: if (@possparts) {
! 1026: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
! 1027: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
! 1028: \%newrecord,\@possparts,$newversion,
! 1029: $oldversion);
! 1030: if (@parts_to_hide) {
! 1031: my $partslist = join(',',@parts_to_hide);
! 1032: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
! 1033: }
! 1034: }
! 1035: }
! 1036: }
1.159 albertel 1037: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1038: &store_aggregates($symb,$courseid);
1.159 albertel 1039: }
1.323 albertel 1040: } else {
1041: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1042: }
1.159 albertel 1043: return $result;
1.65 albertel 1044: }
1045:
1.435 jms 1046: =pod
1047:
1.524 ! raeburn 1048: =item check_correctness_changes()
! 1049:
! 1050: For all parts for which current results contain a solved status
! 1051: of "incorrect_attempted", check if there was a transaction in which
! 1052: solved was set to "correct_by_student" in the time since the last
! 1053: transaction (retrieved when &initialize_storage() was called i.e.,
! 1054: when &start_problem() was called), unless:
! 1055: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
! 1056: (b) problemstatus is set to no or no_feedback_ever
! 1057: If such a transaction exists, and did not occur after "reset status"
! 1058: by a user with grading privileges, then the current transaction is an
! 1059: example of an out-of-order transaction (i.e., incorrect occurring after
! 1060: correct). Accordingly, the current transaction should be hidden.
! 1061:
! 1062: =cut
! 1063:
! 1064:
! 1065: sub check_correctness_changes {
! 1066: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
! 1067: my @parts_to_hide;
! 1068: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
! 1069: return @parts_to_hide;
! 1070: }
! 1071: if (@{$parts}) {
! 1072: my $usec;
! 1073: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
! 1074: ($env{'request.course.id'} eq $courseid)) {
! 1075: $usec = $env{'request.course.sec'};
! 1076: } else {
! 1077: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
! 1078: }
! 1079: foreach my $id (@{$parts}) {
! 1080: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
! 1081: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
! 1082: $domain,$name,$usec,undef,$courseid) =~ /^no/));
! 1083: my $reset;
! 1084: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
! 1085: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
! 1086: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
! 1087: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
! 1088: $reset = 1;
! 1089: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
! 1090: ($record->{$i.":resource.$id.awarded"} >= 1)) {
! 1091: unless ($reset) {
! 1092: push(@parts_to_hide,$id);
! 1093: last;
! 1094: }
! 1095: }
! 1096: }
! 1097: }
! 1098: }
! 1099: return @parts_to_hide;
! 1100: }
! 1101:
! 1102: =pod
! 1103:
1.435 jms 1104: item store_aggregates()
1105:
1106: Sends hash of values to be incremented in nohist_resourcetracker.db
1107: for the course. Increments total number of attempts, unique students
1108: and corrects for each part for an instance of a problem, as appropriate.
1109:
1110: =cut
1111:
1.285 raeburn 1112: sub store_aggregates {
1113: my ($symb,$courseid) = @_;
1.479 raeburn 1114: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1115: my @parts;
1.288 albertel 1116: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1117: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1118: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1119: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1120: push(@parts, $1);
1.285 raeburn 1121: }
1122: }
1.286 albertel 1123: foreach my $part (@parts) {
1.470 raeburn 1124: if ($env{'request.role'} =~/^st/) {
1125: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1126: eq 'APPROX_ANS' ||
1127: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1128: eq 'EXACT_ANS') {
1129: $aggregate{$symb."\0".$part."\0correct"} = 1;
1130: }
1131: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1132: $aggregate{$symb."\0".$part."\0users"} = 1;
1133: } else {
1134: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1135: if ($last_reset) {
1136: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1137: $aggregate{$symb."\0".$part."\0users"} = 1;
1138: }
1139: }
1140: }
1141: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1142: }
1.470 raeburn 1143: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1144: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1145: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1146: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1147: $randtrycounter{$symb."\0".$part} = 1;
1148: } else {
1149: $anoncounter{$symb."\0".$part} = 1;
1150: }
1.470 raeburn 1151: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1152: if ($needsrelease) {
1153: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1154: if ($curr_required eq '') {
1.471 raeburn 1155: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1156: } else {
1157: my ($currmajor,$currminor) = split(/\./,$curr_required);
1158: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1159: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1160: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1161: }
1.292 raeburn 1162: }
1163: }
1.285 raeburn 1164: }
1165: }
1.292 raeburn 1166: if (keys (%aggregate) > 0) {
1.289 albertel 1167: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1168: $cdomain,$cname);
1169: }
1.472 raeburn 1170: if (keys(%anoncounter) > 0) {
1.481 raeburn 1171: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1172: $cdomain,$cname);
1.472 raeburn 1173: }
1.479 raeburn 1174: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1175: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1176: $cdomain,$cname);
1.479 raeburn 1177: }
1.292 raeburn 1178: }
1.289 albertel 1179:
1.65 albertel 1180: sub checkout_msg {
1.211 albertel 1181: my %lt=&Apache::lonlocal::texthash(
1182: 'resource'=>'The resource needs to be checked out',
1183: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
1184: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1185: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1186: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1187: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1188: return (<<ENDCHECKOUT);
1.211 albertel 1189: <h2>$lt{'resource'}</h2>
1190: <p>$lt{'id_expln'}</p>
1.449 bisitz 1191: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1192: <form name="checkout" method="post" action="$uri">
1.91 albertel 1193: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1194: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1195: </form>
1196: ENDCHECKOUT
1197: }
1198:
1.252 albertel 1199: sub firstaccess_msg {
1.253 albertel 1200: my ($time,$symb)=@_;
1.414 albertel 1201: my $result;
1202: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1203: if ($interval[1] eq 'map') {
1204: my ($map)=&Apache::lonnet::decode_symb($symb);
1205: my $foldertitle=&Apache::lonnet::gettitle($map);
1206:
1207: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1208: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1209: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1210: ,$foldertitle,$time)."</p>";
1.414 albertel 1211: } elsif ($interval[1] eq 'course') {
1212: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1213: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1214: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1215: ,$course,$time)."</p>";
1.414 albertel 1216: } else {
1217: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1218: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1219: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1220: ,$title,$time)."</p>";
1.414 albertel 1221: }
1.352 albertel 1222: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1223: my $buttontext = &mt('Show Resource');
1224: my $timertext = &mt('Start Timer?');
1.414 albertel 1225: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1226: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1227: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1228: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1229: </form>
1230: ENDCHECKOUT
1.414 albertel 1231: return $result;
1.252 albertel 1232: }
1233:
1.204 albertel 1234: sub init_problem_globals {
1235: my ($type)=@_;
1236: #initialize globals
1.308 foxr 1237: # For problems, we start out in part 0 (outside a <part> tag).
1238: # and part 0 is used to describe the main body of the <problem>
1239: #
1.204 albertel 1240: if ($type eq 'problem') {
1241: $Apache::inputtags::part='0';
1242: @Apache::inputtags::partlist=('0');
1.405 albertel 1243: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1244: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1245:
1.266 albertel 1246: } elsif ($type eq 'library') {
1.204 albertel 1247: $Apache::inputtags::part='';
1248: @Apache::inputtags::partlist=();
1.405 albertel 1249: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1250: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1251:
1.304 albertel 1252: } elsif ($type eq 'Task') {
1253: $Apache::inputtags::part='0';
1254: @Apache::inputtags::partlist=('0');
1.405 albertel 1255: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1256: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1257: }
1.477 www 1258: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1259: @Apache::inputtags::responselist = ();
1260: @Apache::inputtags::importlist = ();
1261: @Apache::inputtags::previous=();
1262: @Apache::inputtags::previous_version=();
1263: $Apache::structuretags::printanswer='No';
1264: @Apache::structuretags::whileconds=();
1265: @Apache::structuretags::whilebody=();
1266: @Apache::structuretags::whileline=();
1267: $Apache::lonhomework::scantronmode=0;
1268: undef($Apache::lonhomework::name);
1.358 albertel 1269: undef($Apache::lonhomework::default_type);
1270: undef($Apache::lonhomework::type);
1.204 albertel 1271: }
1272:
1273: sub reset_problem_globals {
1274: my ($type)=@_;
1275: undef(%Apache::lonhomework::history);
1276: undef(%Apache::lonhomework::results);
1277: undef($Apache::inputtags::part);
1.498 raeburn 1278: if ($type eq 'Task') {
1279: undef($Apache::inputtags::slot_name);
1280: }
1.208 albertel 1281: #don't undef this, lonhomework.pm takes care of this, we use this to
1282: #detect if we try to do 2 problems in one file
1283: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1284: undef($Apache::lonhomework::name);
1.358 albertel 1285: undef($Apache::lonhomework::default_type);
1286: undef($Apache::lonhomework::type);
1287: undef($Apache::lonhomework::scantronmode);
1288: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1289: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1290: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1291: }
1292:
1.241 albertel 1293: sub set_problem_state {
1.240 albertel 1294: my ($part)=@_;
1.284 albertel 1295: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1296: $Apache::lonhomework::history{"resource.$part.solved"}=
1297: 'correct_by_student';
1298: }
1299: }
1300:
1.241 albertel 1301: sub get_problem_status {
1302: my ($part)=@_;
1.267 albertel 1303: my $problem_status;
1.284 albertel 1304: if ($env{'request.state'} eq 'construct' &&
1305: defined($env{'form.problemstatus'})) {
1306: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1307: } else {
1308: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1309: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1310: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1311: }
1312: return $problem_status;
1313: }
1314:
1.9 albertel 1315: sub start_problem {
1.326 albertel 1316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1317:
1.311 foxr 1318: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1319: if (!$Apache::lonxml::metamode) {
1320: &Apache::lonxml::startredirection();
1321: }
1.311 foxr 1322:
1.308 foxr 1323: # Problems don't nest and we don't allow more than one <problem> in
1324: # a .problem file.
1325: #
1.184 albertel 1326: if ( $Apache::inputtags::part ne '' ||
1327: $Apache::lonhomework::parsing_a_problem) {
1328: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1329: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1330: return '';
1331: }
1.184 albertel 1332:
1333: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1334: &init_problem_globals('problem');
1.166 albertel 1335:
1.284 albertel 1336: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1337: $Apache::lonhomework::scantronmode=1;
1338: }
1.161 albertel 1339:
1.159 albertel 1340: if ($target ne 'analyze') {
1.415 raeburn 1341: my $type = &Apache::lonnet::EXT('resource.0.type');
1342: $Apache::lonhomework::type=$type;
1.284 albertel 1343: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1344: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1345: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1346: }
1.332 albertel 1347: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1348: }
1.164 albertel 1349: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1350: my $uri=$env{'request.uri'};
1.159 albertel 1351: if ($uri=~/\.(\w+)$/) {
1352: $Apache::lonhomework::type=$1;
1353: &Apache::lonxml::debug("Using type of $1");
1354: } else {
1355: $Apache::lonhomework::type='problem';
1356: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1357: }
1.87 albertel 1358: }
1.301 albertel 1359: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1360:
1.363 albertel 1361: &initialize_storage();
1.389 albertel 1362: if ($target ne 'analyze'
1363: && $env{'request.state'} eq 'construct') {
1364: &set_problem_state('0');
1365: }
1366:
1.366 albertel 1367: if ($target eq 'web') {
1368: &Apache::lonxml::debug(" grading history ");
1369: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1370: }
1.363 albertel 1371:
1.159 albertel 1372: #added vars to the scripting enviroment
1.213 albertel 1373: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1374: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1375: &Apache::run::run($expression,$safeeval);
1.159 albertel 1376: my $status;
1377: my $accessmsg;
1.508 raeburn 1378: my $resource_due;
1.159 albertel 1379:
1.343 albertel 1380: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1381: my ($result,$form_tag_start,$slot_name,$slot);
1382:
1383: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1384: $target eq 'tex') {
1385: if ($env{'form.markaccess'}) {
1386: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1387: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1388: }
1389:
1390: ($status,$accessmsg,$slot_name,$slot) =
1391: &Apache::lonhomework::check_slot_access('0','problem');
1392: push (@Apache::inputtags::status,$status);
1393: }
1394:
1.354 albertel 1395: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1396: || $target eq 'edit') {
1.350 albertel 1397: ($result,$form_tag_start) =
1398: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1399: $name);
1400: }
1401:
1.284 albertel 1402: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1403:
1.479 raeburn 1404: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1405: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1406: $target eq 'tex') {
1.479 raeburn 1407:
1.159 albertel 1408: #handle rand seed in construction space
1.479 raeburn 1409: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1410: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1411:
1.333 albertel 1412: if ($env{'request.state'} ne "construct" &&
1413: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1414: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1415: $rndseed.'" />'.
1416: '<input type="submit" name="resetdata"
1417: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1418: if (exists($env{'form.username'})) {
1419: $form_tag_start.=
1.164 albertel 1420: '<input type="hidden" name="username"
1.284 albertel 1421: value="'.$env{'form.username'}.'" />';
1.334 albertel 1422: }
1.462 raeburn 1423: if ($env{'request.role.adv'}) {
1424: $form_tag_start.= ' <label class="LC_nobreak">'
1425: .'<input type="checkbox" name="showallfoils"';
1426: if (defined($env{'form.showallfoils'})) {
1427: $form_tag_start.=' checked="checked"';
1428: }
1429: $form_tag_start.= ' /> '
1430: .&mt('Show All Foils')
1431: .'</label>';
1432: }
1.417 www 1433: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1434: $form_tag_start.=&practice_problem_header();
1.417 www 1435: }
1.462 raeburn 1436: $form_tag_start.='<hr />';
1.479 raeburn 1437: } elsif (($env{'request.state'} ne "construct") &&
1438: ($Apache::lonhomework::type eq 'randomizetry') &&
1439: ($status eq 'CAN_ANSWER')) {
1440: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1441: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1442: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1443: }
1.324 albertel 1444:
1.159 albertel 1445: my $expression='$external::datestatus="'.$status.'";';
1446: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1447: &Apache::run::run($expression,$safeeval);
1448: &Apache::lonxml::debug("Got $status");
1.324 albertel 1449:
1.159 albertel 1450: if (( $status eq 'CLOSED' ) ||
1451: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1452: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1453: ( $status eq 'BANNED') ||
1.216 albertel 1454: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1455: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1456: ( $status eq 'NOTRESERVABLE') ||
1457: ( $status eq 'RESERVABLE') ||
1458: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1459: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1460: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1461: $style);
1.159 albertel 1462: if ( $target eq "web" ) {
1.343 albertel 1463: my $msg;
1.159 albertel 1464: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1465: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1466: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1467: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1468: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1469: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1470: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1471: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1472: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1473: }
1.216 albertel 1474: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1475: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1476: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1477: $msg.=&checkout_msg();
1.252 albertel 1478: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1479: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1480: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1481: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1482: } elsif ($status eq 'RESERVABLE') {
1483: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1484: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1485: '<br />'.
1486: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1487: } elsif ($status eq 'RESERVABLE_LATER') {
1488: $msg.=&mt('Window to make a reservation will open [_1].',
1489: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1490: } elsif ($status eq 'NOTRESERVABLE') {
1491: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1492: }
1493: $result.=$msg.'<br />';
1494: } elsif ($target eq 'tex') {
1.332 albertel 1495: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1496: : '\begin{minipage}{\textwidth}';
1.443 foxr 1497: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1498: $startminipage.'\vskip 0 mm';
1.159 albertel 1499: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1500: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1501: } else {
1.211 albertel 1502: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1503: }
1504: }
1.324 albertel 1505: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1506: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1507: $style);
1.324 albertel 1508: if ($target eq 'web') {
1.375 albertel 1509: $result .=
1510: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1511: } elsif ($target eq 'grade') {
1512: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1513: 'problem');
1514: }
1.159 albertel 1515: } elsif ($target eq 'web') {
1.508 raeburn 1516: if ($status eq 'CAN_ANSWER') {
1517: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1518: if ($slot_name ne '') {
1519: my $checked_in =
1520: $Apache::lonhomework::history{'resource.0.checkedin'};
1521: if ($checked_in eq '') {
1522: # unproctored slot access, self checkin
1523: &Apache::bridgetask::check_in('problem',undef,undef,
1524: $slot_name);
1525: $checked_in =
1526: $Apache::lonhomework::results{"resource.0.checkedin"};
1527: }
1528: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1529: if ($slot->{'starttime'} < time()) {
1530: if (!$resource_due) {
1531: $resource_due = $slot->{'endtime'};
1532: } elsif ($slot->{'endtime'} < $resource_due) {
1533: $resource_due = $slot->{'endtime'};
1534: }
1535: }
1536: }
1537: }
1538: if ($resource_due) {
1539: my $time_left = $resource_due - time();
1540: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1541: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1542: }
1543: }
1544: }
1.368 albertel 1545: $result.="\n $form_tag_start \t".
1.227 albertel 1546: '<input type="hidden" name="submitted" value="yes" />';
1547: # create a page header and exit
1.284 albertel 1548: if ($env{'request.state'} eq "construct") {
1549: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1550: if ($Apache::lonhomework::type eq 'practice') {
1551: $result.= '<input type="submit" name="resetdata" '.
1552: 'value="'.&mt('New Problem Variation').'" />'.
1553: &practice_problem_header().'<hr />';
1554: }
1.227 albertel 1555: }
1556: # if we are viewing someone else preserve that info
1.284 albertel 1557: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1558: foreach my $field ('symb','courseid','domain','username') {
1559: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1560: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1561: }
1.479 raeburn 1562: foreach my $field ('trial','questiontype') {
1563: if ($env{"form.grade_$field"} ne '') {
1564: $result .= '<input type="hidden" name="grade_'.$field.
1565: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1566: }
1567: }
1.159 albertel 1568: }
1.490 raeburn 1569: if ($env{'form.grade_imsexport'}) {
1570: $result = '';
1571: }
1.159 albertel 1572: } elsif ($target eq 'tex') {
1.319 foxr 1573: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1574: $result .= &select_metadata_hyphenation();
1575:
1.319 foxr 1576:
1.99 sakharuk 1577: }
1.159 albertel 1578: } elsif ($target eq 'edit') {
1.343 albertel 1579: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1580: $Apache::lonxml::warnings_error_header=
1581: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 1582: my $temp=&Apache::edit::insertlist($target,$token);
1583: $result.=$temp;
1584: } elsif ($target eq 'modified') {
1585: $result=$token->[4];
1586: } else {
1587: # page_start returned a starting result, delete it if we don't need it
1588: $result = '';
1.99 sakharuk 1589: }
1.159 albertel 1590: return $result;
1.9 albertel 1591: }
1592:
1593: sub end_problem {
1.159 albertel 1594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1595: my $result;
1.310 foxr 1596:
1.321 albertel 1597: if (!$Apache::lonxml::metamode) {
1598: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1599: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1600: }
1.319 foxr 1601:
1602: if ($target eq 'tex') {
1.321 albertel 1603: # Figure out the front matter and replace the
1604: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1605: # this in end_problem because whether or not we display due
1606: # dates depends on whether due dates have already been
1607: # displayed in the problem parts.
1608:
1.319 foxr 1609: my $frontmatter = '';
1610: my $startminipage = '';
1611: if (not $env{'form.problem_split'}=~/yes/) {
1612: $startminipage = '\begin{minipage}{\textwidth}';
1613: }
1614: my $id = $Apache::inputtags::part;
1615: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1616: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1617: my @packages = split /,/,$packages;
1618: my $allow_print_points = 0;
1619: foreach my $partial_key (@packages) {
1620: if ($partial_key=~m/^part_0$/) {
1621: $allow_print_points=1;
1622: }
1623: }
1624: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1625: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1626: if (lc($env{'course.'.$env{'request.course.id'}.
1627: '.disableexampointprint'}) eq 'yes') {
1628: $allow_print_points=0;
1629: }
1630: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1631: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.500 foxr 1632: &clear_required_languages();
1.319 foxr 1633: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1634: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1635:
1636: # Figure out what the due date is and if we need to print
1637: # it in the problem header. We have been logging the
1638: # last due date written to file.
1639:
1640: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1641: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1642: my $duedate_text = &mt('Due date: [_1]'
1643: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1644: my $temp_file;
1645: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1646:
1647: # Figure out what the last printed due date is or set it
1648: # to the epoch if no duedates have been printed.
1649:
1650: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1651: if (-e $filename) {
1652: $temp_file = Apache::File->new($filename);
1653: my @due_file = <$temp_file>;
1654: $due_file_content = $due_file[$#due_file];
1655: chomp $due_file_content;
1656: }
1657:
1658: # We display the due date iff it is not the same as the last
1659: # duedate in problem header ($due_file_content), and
1660: # none of our parts displayed a duedate.
1661: #
1662: my $parts_with_displayduedate;
1663: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1664: $parts_with_displayduedate =
1665: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1666: } else {
1667: $parts_with_displayduedate = 0;
1668: }
1669: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1670: $temp_file = Apache::File->new('>'.$filename);
1671: print $temp_file "$duetime\n";
1672: if (not $env{'request.symb'} =~ m/\.page_/) {
1673: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1674: $frontmatter .= $begin_doc.
1.448 bisitz 1675: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1676: } else {
1677: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1678: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1679: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1680: }
1.319 foxr 1681: }
1682: } else {
1.448 bisitz 1683: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1684: }
1685: } else {
1686: if (not $env{'request.symb'} =~ m/\.page_/) {
1687: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1688: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1689: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1690: }
1.319 foxr 1691: } else {
1.381 albertel 1692: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1693: }
1694: }
1695: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1696: }
1697:
1.159 albertel 1698: my $status=$Apache::inputtags::status['-1'];
1699: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1700: $target eq 'tex') {
1.249 albertel 1701: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1702: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1703: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1704: &Apache::inputtags::grade;
1.324 albertel 1705: } elsif ($status eq 'NEEDS_CHECKIN') {
1706: # no need to grade, and don't want to hide data
1.249 albertel 1707: } else {
1708: # move any submission data to .hidden
1709: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1710: }
1.159 albertel 1711: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1712: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1713: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1714: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1715: # if part is zero, no <part>s existed, so we need show the current
1716: # grading status
1717: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1718: $result.= $gradestatus;
1719: }
1720: if (
1.284 albertel 1721: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1722: ($target eq 'answer') || ($target eq 'tex')
1723: ) {
1.490 raeburn 1724: if (($target ne 'tex') &&
1725: ($env{'form.answer_output_mode'} ne 'tex') &&
1726: (!$env{'form.grade_imsexport'})) {
1.254 www 1727: $result.="</form>";
1.159 albertel 1728: }
1729: if ($target eq 'web') {
1.507 raeburn 1730: #
1731: # Closing </body></html> not added by end_page().
1732: # Added separately at end of this routine, after added
1733: # <script></script> so document will be valid xhtml.
1734: #
1735: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1736: 'notbody' => 1});
1.159 albertel 1737: } elsif ($target eq 'tex') {
1.178 sakharuk 1738: my $endminipage = '';
1.284 albertel 1739: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1740: $endminipage = '\end{minipage}';
1741: }
1.284 albertel 1742: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1743: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1744: } else {
1.262 sakharuk 1745: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1746: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1747: $result .= $endminipage.'\end{document} ';
1748: } else {
1.382 albertel 1749: $result .= $endminipage;
1.262 sakharuk 1750: }
1.159 albertel 1751: }
1752: }
1753: }
1.476 www 1754: if ($target eq 'web') {
1755: $result.=&Apache::functionplotresponse::init_script();
1756: }
1.159 albertel 1757: if ($target eq 'grade') {
1758: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1759: &finalize_storage();
1760: }
1.284 albertel 1761: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1762: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1763: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1764: # normally we get it from above, but in CSTR
1.172 albertel 1765: # we always show answer mode too.
1.159 albertel 1766: }
1767: } elsif ($target eq 'meta') {
1768: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1769: @Apache::inputtags::response=();
1.159 albertel 1770: $result=&Apache::response::mandatory_part_meta;
1771: }
1.215 albertel 1772: $result.=&Apache::response::meta_part_order();
1.258 albertel 1773: $result.=&Apache::response::meta_response_order();
1.159 albertel 1774: } elsif ($target eq 'edit') {
1775: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1776: $result .= &problem_edit_footer();
1.320 albertel 1777: } elsif ($target eq 'modified') {
1778: $result .= $token->[2];
1.159 albertel 1779: }
1.155 albertel 1780:
1.284 albertel 1781: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1782: &Apache::inputtags::check_for_duplicate_ids();
1783: }
1.204 albertel 1784:
1785: &reset_problem_globals('problem');
1.159 albertel 1786:
1.502 foxr 1787: #
1788: # This shouild be just above the return so that the
1789: # time put in the javascript is as late as possible in the
1790: # computation:
1791: #
1792: if ($target eq 'web') {
1793: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1794: #
1795: # Closing tags delayed so any <script></script> tags
1796: # not in head can appear inside body, for valid xhtml.
1797: #
1798: $result .= "</body>\n</html>";
1.502 foxr 1799: }
1.159 albertel 1800: return $result;
1.48 albertel 1801: }
1802:
1.108 albertel 1803:
1.48 albertel 1804: sub start_library {
1.159 albertel 1805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1806: my ($result,$form_tag_start);
1.371 albertel 1807: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1808: &init_problem_globals('library');
1809: $Apache::lonhomework::type='problem';
1810: }
1.159 albertel 1811: if ($target eq 'edit') {
1.343 albertel 1812: ($result,$form_tag_start)=
1813: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1814: 'Edit');
1815: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1816: my $temp=&Apache::edit::insertlist($target,$token);
1817: $result.=$temp;
1818: } elsif ($target eq 'modified') {
1819: $result=$token->[4];
1.340 albertel 1820: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1821: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1822: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1823: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1824: ($result,$form_tag_start)=
1825: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1826: $name);
1.479 raeburn 1827: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1828: $result.=" \n $form_tag_start".
1.159 albertel 1829: '<input type="hidden" name="submitted" value="yes" />';
1830: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1831: if ($Apache::lonhomework::type eq 'practice') {
1832: $result.= '<input type="submit" name="resetdata" '.
1833: 'value="'.&mt('New Problem Variation').'" />'.
1834: &practice_problem_header().'<hr />';
1835: }
1.159 albertel 1836: }
1837: return $result;
1.48 albertel 1838: }
1839:
1840: sub end_library {
1.159 albertel 1841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1842: my $result='';
1843: if ($target eq 'edit') {
1844: $result=&problem_edit_footer();
1.371 albertel 1845: } elsif ($target eq 'web'
1846: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1847: && $env{'request.state'} eq "construct") {
1.349 albertel 1848: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1849: }
1.371 albertel 1850: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1851: &reset_problem_globals('library');
1852: }
1.159 albertel 1853: return $result;
1.197 www 1854: }
1855:
1856: sub start_definetag {
1.326 albertel 1857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1858:
1859: my $result;
1860:
1861: my $name = $token->[2]->{'name'};
1.326 albertel 1862: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1863: if ($target eq 'web') {
1864: if ($name=~/^\//) {
1865: $result=
1866: '<br /><table class="LC_sty_end"><tr><th>'.
1867: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1868: } else {
1869: $result=
1870: '<br /><table class="LC_sty_begin"><tr><th>'.
1871: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1872: }
1873: $skip = &HTML::Entities::encode($skip, '<>&"');
1874: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1875: }
1876: return $result;
1877: }
1878:
1879: sub end_definetag {
1880: return '';
1.1 albertel 1881: }
1882:
1883: sub start_block {
1.201 albertel 1884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1885:
1886: my $result;
1.1 albertel 1887:
1.339 albertel 1888: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1889: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1890: my $code = $token->[2]->{'condition'};
1.385 albertel 1891: if (defined($code) && $code ne '') {
1.137 albertel 1892: if (!$Apache::lonxml::default_homework_loaded) {
1893: &Apache::lonxml::default_homework_load($safeeval);
1894: }
1.131 albertel 1895: $result = &Apache::run::run($code,$safeeval);
1896: &Apache::lonxml::debug("block :$code: returned :$result:");
1897: } else {
1898: $result='1';
1899: }
1900: if ( ! $result ) {
1.201 albertel 1901: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1902: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1903: }
1904: $result='';
1905: } elsif ($target eq 'edit') {
1906: $result .=&Apache::edit::tag_start($target,$token);
1907: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1908: $token,40);
1909: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1910: } elsif ($target eq 'modified') {
1911: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1912: $safeeval,'condition');
1913: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1914: }
1.131 albertel 1915: return $result;
1.1 albertel 1916: }
1917:
1918: sub end_block {
1.167 www 1919: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1920: my $result;
1921: if ($target eq "edit") {
1922: $result.= &Apache::edit::tag_end($target,$token,'');
1923: }
1924: return $result;
1925: }
1.500 foxr 1926: #
1927: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1928: # ...
1929: # </languageblock>
1930: #
1931: # This declares the intent to provide content that can be rendered in the
1932: # set of languages in the include specificatino but not in the exclude
1933: # specification. If a currently preferred language is in the include list
1934: # the content in the <languageblock>...</languageblock> is rendered
1935: # If the currently preferred language is in the exclude list,
1936: # the content in the <languageblock>..></languageblock is not rendered.
1937: #
1938: # Pathalogical case handling:
1939: # - Include specified, without the preferred language but exclude specified
1940: # also without the preferred langauge results in rendering the block.
1941: # - Exclude specified without include and excluden not containing a
1942: # preferred language renders the block.
1943: # - Include and exclude both specifying the preferred language does not
1944: # render the block.
1945: # - If neither include/exclude is specified, the block gets rendered.
1946: #
1947: # This tag has no effect when target is in {edit, modified}
1948: #
1.167 www 1949: sub start_languageblock {
1.201 albertel 1950: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1951:
1.500 foxr 1952: my $result = '';
1.167 www 1953:
1.339 albertel 1954: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1955: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1956: my $include = $token->[2]->{'include'};
1957: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1958: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1959:
1960: # This should not even happen, since we should at least have the server language
1961:
1962: if (!$preferred_languages[0]) {
1963: $preferred_languages[0]='en';
1964: }
1965:
1966: # Now loop over all languages in order of preference
1967:
1968: my $render;
1.398 www 1969: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1970:
1971: # If neither include/nor exlude is present the block is going
1972: # to get rendered.
1973:
1.399 www 1974: my $found=0;
1.500 foxr 1975: $render=1;
1976:
1977: # If include is specified, don't render the block
1978: # unless the preferred language is included in the set.
1979:
1.398 www 1980: if ($include) {
1.500 foxr 1981: $render=0;
1.398 www 1982: foreach my $included_language (split(/\,/,$include)) {
1983: if ($included_language eq $preferred_language) {
1.500 foxr 1984: $render=1;
1.399 www 1985: $found=1;
1.500 foxr 1986: last; # Only need to find the first.
1.398 www 1987: }
1988: }
1989: }
1.500 foxr 1990: # Do we have an exclude argument?
1991: # If so, and one of the languages matches a preferred language
1992: # inhibit rendering the block. Note that in the pathalogical case the
1993: # author has specified a preferred language in both the include and exclude
1994: # attribte exclude is preferred.
1995:
1.398 www 1996: if ($exclude) {
1.500 foxr 1997: $render=1;
1.398 www 1998: foreach my $excluded_language (split(/\,/,$exclude)) {
1999: if ($excluded_language eq $preferred_language) {
1.500 foxr 2000: $render=0;
1.399 www 2001: $found=1;
1.500 foxr 2002: last; # Only need to find the first.
1.398 www 2003: }
2004: }
2005: }
1.500 foxr 2006: if ($found) {
2007: last; # Done on any match of include or exclude.
2008: }
1.398 www 2009: }
1.500 foxr 2010: # If $render not true skip the entire block until </languageblock>
2011: #
2012:
2013: if ( ! $render ) {
1.201 albertel 2014: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2015: $style);
2016: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2017: }
1.500 foxr 2018: # If $render is true, we've not skipped the contents of the <languageglock>
2019: # and the normal loncapa processing flow will render it as a matter of course.
2020:
1.167 www 2021: } elsif ($target eq 'edit') {
2022: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2023: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2024: $token,40);
1.211 albertel 2025: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2026: $token,40);
2027: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2028: } elsif ($target eq 'modified') {
2029: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2030: $safeeval,'include',
2031: 'exclude');
1.167 www 2032: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2033: }
2034: return $result;
2035: }
2036:
2037: sub end_languageblock {
1.170 www 2038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2039: my $result;
1.201 albertel 2040: if ($target eq "edit") {
1.170 www 2041: $result.= &Apache::edit::tag_end($target,$token,'');
2042: }
2043: return $result;
2044: }
1.500 foxr 2045: # languagblock specific tags:
2046: {
2047: # For chunks of a resource that has translations, this hash contains
2048: # the translations available indexed by language name.
2049: #
2050:
2051: my %available_texts;
1.170 www 2052:
1.500 foxr 2053: # <translated> starts a block of a resource that has multiple translations.
2054: # See the <lang> tag as well.
2055: # When </translated> is encountered if there is a translation for the
2056: # currently preferred language, that is rendered inthe web/tex/webgrade
2057: # targets. Otherwise, the default text is rendered.
2058: #
2059: # Note that <lang> is only registered for the duration of the
2060: # <translated>...</translated> block
2061: #
2062: # Pathalogical case handling:
2063: # - If there is no <lang> that specifies a 'default' and there is no
2064: # translation that matches a preferred language, nothing is rendered.
2065: # - Nested <translated>...</translated> might be linguistically supported by
2066: # XML due to the stack nature of tag registration(?) however the rendered
2067: # output will be incorrect because there is only one %available_texts
2068: # has and end_translated clears it.
2069: # - Material outside of a <lang>...</lang> block within the
2070: # <translated>...<translated> block won't render either e.g.:
2071: # <translated>
2072: # The following will be in your preferred langauge:
2073: # <lang which='en'>
2074: # This section in english
2075: # </lang>
2076: # <lang which='sgeiso'>
2077: # Hier es ist auf Deutsch.
2078: # </lang>
2079: # <lang which='sfriso'>
2080: # En Francais
2081: # </lang>
2082: # </translated>
2083: #
2084: # The introductory text prior to the first <lang> tag is not rendered.
2085: #
1.397 albertel 2086: sub start_translated {
2087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2088: &Apache::lonxml::register('Apache::structuretags',('lang'));
2089: undef(%available_texts);
2090: }
2091:
2092: sub end_translated {
2093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2094: my $result;
2095: #show the translation on viewable targets
2096: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2097: # or non-viewable targets, if it's embedded in something that
2098: # wants the output
2099: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2100: && &Apache::lonxml::in_redirection() ) ) {
2101: my @possibilities = keys(%available_texts);
2102: my $which =
2103: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2104: if ($target eq 'tex') {
2105: $result = &select_hyphenation($which);
2106: }
2107: $result .= $available_texts{$which};
2108: if ($target eq 'tex') {
2109: $result .= &select_metadata_hyphenation(); # Restore original language.
2110: }
1.397 albertel 2111: }
2112: undef(%available_texts);
2113: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2114: return $result;
2115: }
2116:
1.500 foxr 2117: # <lang [which='language-name'] [other='lang1,lang2...']>
2118: # Specifies that the block contained within it is a translation
2119: # for a specific language specified by the 'which' attribute. The
2120: # 'other' attribute can be used by itself or in conjunction with
2121: # which to specify this tag _may_ be used as a translation for some
2122: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2123: # specifying that the block provides a translation for US (primary)
2124: # Canadian, Australian and UK Englush.
2125: #
2126: # Comment: this seems a bit silly why not just support a list of languages
2127: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2128: #
2129: # Effect:
2130: # The material within the <lang>..</lang> block is stored in the
2131: # specified set of $available_texts hash entries, the appropriate one
2132: # is selected at </translated> time.
2133: #
2134: # Pathalogical case handling:
2135: # If a language occurs multiple times within a <translated> block,
2136: # only the last one is rendered e.g.:
2137: #
2138: # <translated>
2139: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2140: # Red green color blindness is quite common affecting about 7.8% of
2141: # the male population, but onloy about .65% of the female population.
2142: # </lang>
2143: # Red green colour blindness is quite common affecting about 7.8% of
2144: # the male population, but onloy about .65% of the female population.
2145: # <lang which='seniso', other='senisoCA,senisoAU'>
2146: # </translated>
2147: #
2148: # renders the correct spelling of color (colour) for people who have specified
2149: # a preferred language that is one of the British Commonwealth languages
2150: # even though those are also listed as valid selections for the US english
2151: # <lang> block.
2152: #
1.397 albertel 2153: sub start_lang {
2154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2155: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2156: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2157: &Apache::lonxml::startredirection();
2158: }
2159: return '';
2160: }
2161:
2162: sub end_lang {
2163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2164: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2165: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2166: my $result = &Apache::lonxml::endredirection();
2167: my $which = &Apache::lonxml::get_param('which',$parstack,
2168: $safeeval);
1.431 raeburn 2169: if ($which=~/\w/) {
2170: $available_texts{$which} = $result;
2171: }
2172: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2173: $safeeval);
2174: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2175: if ($language=~/\w/) {
2176: $available_texts{$language} = $result;
2177: }
1.427 bisitz 2178: }
2179:
1.397 albertel 2180: }
2181: return '';
2182: }
1.500 foxr 2183: } # end langauge block specific tags.
2184:
1.397 albertel 2185:
1.170 www 2186: sub start_instructorcomment {
1.201 albertel 2187: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2188:
2189: my $result;
2190:
1.339 albertel 2191: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2192: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2193: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2194: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2195: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2196: $parser,$style);
1.170 www 2197: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2198: }
2199: $result='';
2200: } elsif ($target eq 'edit') {
2201: $result .=&Apache::edit::tag_start($target,$token);
2202: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2203: }
2204: return $result;
2205: }
2206:
2207: sub end_instructorcomment {
1.159 albertel 2208: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2209: my $result;
2210: if ($target eq "edit") {
2211: $result.= &Apache::edit::tag_end($target,$token,'');
2212: }
2213: return $result;
1.4 tsai 2214: }
2215:
2216: sub start_while {
1.326 albertel 2217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2218:
1.160 albertel 2219: my $result;
1.339 albertel 2220: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2221: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2222: my $code = $token->[2]->{'condition'};
1.4 tsai 2223:
1.160 albertel 2224: push( @Apache::structuretags::whileconds, $code);
2225: if (!$Apache::lonxml::default_homework_loaded) {
2226: &Apache::lonxml::default_homework_load($safeeval);
2227: }
2228: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2229: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2230: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2231: push( @Apache::structuretags::whileline, $token->[5]);
2232: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2233: if ( $result ) {
2234: &Apache::lonxml::newparser($parser,\$bodytext);
2235: }
2236: } elsif ($target eq 'edit') {
2237: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2238: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2239: $token,40);
2240: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2241: } elsif ($target eq 'modified') {
2242: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2243: $safeeval,'condition');
2244: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2245: }
1.160 albertel 2246: return $result;
1.4 tsai 2247: }
2248:
2249: sub end_while {
1.159 albertel 2250: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2251: my $result;
2252:
1.339 albertel 2253: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2254: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2255: my $code = pop(@Apache::structuretags::whileconds);
2256: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2257: my $line = pop(@Apache::structuretags::whileline);
2258: my $return = &Apache::run::run($code,$safeeval);
2259: my $starttime=time;
2260: my $error=0;
2261: while ($return) {
2262: if (time-$starttime >
2263: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2264: $return = 0; $error=1; next;
1.161 albertel 2265: }
2266: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2267: if ($target eq 'grade' || $target eq 'answer' ||
2268: $target eq 'analyze') {
2269: # grade/answer/analyze should produce no output but if we
2270: # are redirecting, the redirecter should know what to do
2271: # with the output
2272: if (!$Apache::lonxml::redirection) { undef($result); }
2273: }
1.161 albertel 2274: $return = &Apache::run::run($code,$safeeval);
2275: }
1.516 bisitz 2276: if ($error) {
2277: &Apache::lonxml::error(
2278: '<pre>'
2279: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2280: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2281: .&mt('This occurred while running <while> on line [_1].',
2282: $line)
2283: .'</pre>');
2284: }
1.160 albertel 2285: } elsif ($target eq "edit") {
2286: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2287: }
1.160 albertel 2288: return $result;
1.1 albertel 2289: }
1.6 tsai 2290:
1.160 albertel 2291: # <randomlist show="1">
1.6 tsai 2292: # <tag1>..</tag1>
2293: # <tag2>..</tag2>
2294: # <tag3>..</tag3>
1.160 albertel 2295: # ...
1.6 tsai 2296: # </randomlist>
2297: sub start_randomlist {
1.326 albertel 2298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2299: my $result;
1.339 albertel 2300: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2301: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2302: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2303: my $b_parser= HTML::LCParser->new(\$body);
2304: $b_parser->xml_mode(1);
2305: $b_parser->marked_sections(1);
1.159 albertel 2306: my $b_tok;
2307: my @randomlist;
2308: my $list_item;
2309: while($b_tok = $b_parser->get_token() ) {
2310: if($b_tok->[0] eq 'S') { # start tag
2311: # get content of the tag until matching end tag
2312: # get all text upto the matching tag
2313: # and push the content into @randomlist
2314: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2315: $b_parser);
2316: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2317: push(@randomlist,$list_item);
2318: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2319: # $list_item</b>";
2320: }
2321: if($b_tok->[0] eq 'T') { # text
2322: # what to do with text in between tags?
2323: # print "<b>TEXT $b_tok->[1]</b><br />";
2324: }
2325: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2326: # print "<b>END-TAG $b_tok->[1]</b><br />";
2327: # }
2328: }
1.303 albertel 2329: if (@randomlist) {
2330: my @idx_arr = (0 .. $#randomlist);
2331: &Apache::structuretags::shuffle(\@idx_arr);
2332: my $bodytext = '';
2333: my $show=$#randomlist;
2334: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2335: $showarg--;
2336: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2337: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2338: my @currlist;
2339: my $part = $Apache::inputtags::part;
2340: if ($part ne '') {
2341: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2342: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2343: if (!(grep(/^\Q$part\E$/,@currlist))) {
2344: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2345: }
2346: } else {
2347: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2348: }
2349: }
2350: }
1.303 albertel 2351: for(0 .. $show) {
2352: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2353: }
2354: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2355: }
2356: } elsif ($target eq 'edit' ) {
2357: $result .=&Apache::edit::tag_start($target,$token);
2358: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2359: $token,5);
2360: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2361: } elsif ($target eq 'modified' ) {
2362: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2363: $safeeval,'show');
2364: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2365: }
2366: return $result;
1.7 tsai 2367: }
2368:
2369: sub shuffle {
2370: my $a=shift;
2371: my $i;
1.303 albertel 2372: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2373: &Apache::response::pushrandomnumber();
1.159 albertel 2374: for($i=@$a;--$i;) {
2375: my $j=int(&Math::Random::random_uniform() * ($i+1));
2376: next if $i == $j;
2377: @$a[$i,$j] = @$a[$j,$i];
2378: }
1.251 albertel 2379: &Apache::response::poprandomnumber();
1.7 tsai 2380: }
1.6 tsai 2381: }
2382:
2383: sub end_randomlist {
1.159 albertel 2384: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2385: my $result;
2386: if ($target eq 'edit' ) {
2387: $result=&Apache::edit::tag_end($target,$token,
2388: 'End Randomly Parsed Block');
2389: }
2390: return $result;
1.6 tsai 2391: }
2392:
1.283 albertel 2393: sub ordered_show_check {
2394: my $last_part=$Apache::inputtags::partlist[-2];
2395: my $in_order=
2396: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2397: my $in_order_show=1;
2398: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2399: $in_order_show=&Apache::response::check_status($last_part);
2400: }
2401: return $in_order_show;
2402: }
2403:
1.469 www 2404:
2405: sub start_startpartmarker {
2406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2407: my $result='';
2408: if ($target eq 'edit') {
2409: $result=&Apache::edit::tag_start($target,$token);
2410: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2411: $result.=&Apache::edit::end_table();
2412:
2413: }
2414: return $result;
2415: }
2416:
2417: sub end_startpartmarker {
2418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2419: my @result;
2420: if ($target eq 'edit') { $result[1]='no'; }
2421: return @result;
2422: }
2423:
2424: sub start_endpartmarker {
2425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2426: my $result='';
2427: if ($target eq 'edit') {
2428: $result=&Apache::edit::tag_start($target,$token);
2429: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2430: $result.=&Apache::edit::end_table();
2431:
2432: }
2433: return $result;
2434: }
2435:
2436: sub end_endpartmarker {
2437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2438: my @result;
2439: if ($target eq 'edit') { $result[1]='no'; }
2440: return @result;
2441: }
2442:
2443:
2444:
2445:
2446:
1.11 albertel 2447: sub start_part {
1.326 albertel 2448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2449: if (!$Apache::lonxml::metamode) {
2450: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2451: # duedates.
2452: }
1.159 albertel 2453: my $result='';
1.386 albertel 2454: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2455: $Apache::inputtags::part=$id;
1.177 albertel 2456: push(@Apache::inputtags::partlist,$id);
2457: @Apache::inputtags::response=();
1.159 albertel 2458: @Apache::inputtags::previous=();
2459: @Apache::inputtags::previous_version=();
1.405 albertel 2460: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2461: &Apache::response::reset_params();
2462:
1.159 albertel 2463: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2464: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2465: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2466: my $in_order_show=&ordered_show_check();
1.214 albertel 2467: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2468: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2469: &Apache::run::run($expression,$safeeval);
1.159 albertel 2470:
2471: if ($target eq 'meta') {
1.224 www 2472: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2473: return &Apache::response::mandatory_part_meta.
2474: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2475: } elsif ($target eq 'web' || $target eq 'grade' ||
2476: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2477: if ($hidden || !$in_order_show) {
1.326 albertel 2478: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2479: } else {
2480: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2481: push (@Apache::inputtags::status,$status);
2482: my $expression='$external::datestatus="'.$status.'";';
2483: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2484: &Apache::run::run($expression,$safeeval);
1.284 albertel 2485: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2486: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2487: }
1.216 albertel 2488: if (( $status eq 'CLOSED' ) ||
2489: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2490: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2491: ( $status eq 'BANNED') ||
2492: ( $status eq 'UNAVAILABLE') ||
2493: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2494: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2495: $style);
1.159 albertel 2496: if ( $target eq "web" ) {
1.211 albertel 2497: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2498: } elsif ( $target eq 'tex' ) {
1.284 albertel 2499: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2500: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2501: } else {
1.211 albertel 2502: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2503: }
1.159 albertel 2504: }
2505: } else {
2506: if ($target eq 'tex') {
1.284 albertel 2507: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2508: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2509: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2510: } else {
2511: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2512: }
1.195 sakharuk 2513: }
1.159 albertel 2514: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2515: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2516: my @allkeys = split /,/,$allkeys;
2517: my $allow_print_points = 0;
2518: foreach my $partial_key (@allkeys) {
1.230 albertel 2519: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2520: if ($1 ne '0') {$allow_print_points=1;}
2521: }
2522: }
1.275 albertel 2523: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2524: if (defined($maxtries) && $maxtries < 0) {
2525: $allow_print_points=0;
2526: }
1.302 albertel 2527: if (lc($env{'course.'.$env{'request.course.id'}.
2528: '.disableexampointprint'}) eq 'yes') {
2529: $allow_print_points=0;
2530: }
1.463 foxr 2531: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2532: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2533:
2534: }
1.233 www 2535: } elsif ($target eq 'web') {
1.479 raeburn 2536: if ($status eq 'CAN_ANSWER') {
2537: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2538: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2539: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2540: my $num = scalar(@Apache::inputtags::partlist)-1;
2541: if ($probrandomize eq 'randomizetry') {
2542: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2543: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2544: } else {
2545: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2546: if ($probrandtries ne $reqtries) {
2547: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2548: }
2549: }
2550: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2551: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2552: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2553: }
2554: }
1.475 raeburn 2555: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2556: }
2557: }
2558: }
2559: } elsif ($target eq 'edit') {
2560: $result.=&Apache::edit::tag_start($target,$token);
2561: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2562: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2563: ' '.
2564: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2565: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2566: } elsif ($target eq 'modified') {
2567: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2568: $safeeval,'id','display');
1.159 albertel 2569: if ($constructtag) {
1.225 albertel 2570: #limiting ids to only letters numbers, and space
1.224 www 2571: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2572: $result = &Apache::edit::rebuild_tag($token);
2573: }
2574: }
2575: return $result;
1.11 albertel 2576: }
2577:
2578: sub end_part {
1.159 albertel 2579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2580: &Apache::lonxml::debug("in end_part $target ");
2581: my $status=$Apache::inputtags::status['-1'];
2582: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2583: my $in_order_show=&ordered_show_check();
1.321 albertel 2584: my $result;
2585: if (!$Apache::lonxml::metamode) {
2586: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2587: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2588: }
1.312 albertel 2589: if ($target eq 'grade') {
1.249 albertel 2590: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2591: !$hidden && $in_order_show) {
1.311 foxr 2592: $result.=&Apache::inputtags::grade;
1.249 albertel 2593: } else {
2594: # move any submission data to .hidden
2595: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2596: }
1.283 albertel 2597: } elsif (($target eq 'web' || $target eq 'tex') &&
2598: !$hidden && $in_order_show) {
1.159 albertel 2599: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2600: $target);
1.490 raeburn 2601: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2602: ($env{'form.grade_imsexport'})) {
1.212 albertel 2603: $gradestatus='';
2604: }
1.311 foxr 2605: $result.=$gradestatus;
1.265 sakharuk 2606: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2607: } elsif ($target eq 'edit') {
1.311 foxr 2608: $result.=&Apache::edit::end_table();
1.322 albertel 2609: } elsif ($target eq 'modified') {
2610: $result .= $token->[2];
1.159 albertel 2611: }
2612: pop @Apache::inputtags::status;
2613: $Apache::inputtags::part='';
1.295 albertel 2614: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2615: return $result;
1.11 albertel 2616: }
1.1 albertel 2617:
1.25 albertel 2618: sub start_preduedate {
1.326 albertel 2619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2620: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2621: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2622: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2623: if (!$Apache::lonhomework::scantronmode &&
2624: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2625: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2626: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2627: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2628: }
1.24 albertel 2629: }
1.159 albertel 2630: return '';
1.24 albertel 2631: }
2632:
1.25 albertel 2633: sub end_preduedate {
1.159 albertel 2634: return '';
1.24 albertel 2635: }
2636:
1.369 foxr 2637: # In all the modes where <postanswerdate> text is
2638: # displayable, all we do is eat up the text between the start/stop
2639: # tags if the conditions are not right to display it.
1.25 albertel 2640: sub start_postanswerdate {
1.326 albertel 2641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2642: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2643: &Apache::lonnet::allowed('pav',
2644: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2645: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2646: $target eq 'tex' ) {
1.300 albertel 2647: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2648: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2649: (($target eq 'tex') && !$pav)) {
1.326 albertel 2650: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2651: }
2652: }
2653: return '';
1.24 albertel 2654: }
2655:
1.25 albertel 2656: sub end_postanswerdate {
1.159 albertel 2657: return '';
1.24 albertel 2658: }
2659:
1.25 albertel 2660: sub start_notsolved {
1.326 albertel 2661: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2662: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2663: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2664: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2665: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2666: if ($gradestatus =~ /^correct/ &&
2667: &Apache::response::show_answer()) {
1.159 albertel 2668: &Apache::lonxml::debug("skipping");
1.326 albertel 2669: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2670: }
1.24 albertel 2671: }
1.159 albertel 2672: return '';
1.24 albertel 2673: }
2674:
1.25 albertel 2675: sub end_notsolved {
1.159 albertel 2676: return '';
1.24 albertel 2677: }
2678:
2679: sub start_solved {
1.326 albertel 2680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2681: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2682: $target eq 'tex') {
2683: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2684: if ($gradestatus !~ /^correct/ ||
2685: !&Apache::response::show_answer()) {
1.326 albertel 2686: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2687: }
1.24 albertel 2688: }
1.159 albertel 2689: return '';
1.24 albertel 2690: }
2691:
2692: sub end_solved {
1.248 albertel 2693: return '';
2694: }
2695:
2696: sub start_problemtype {
1.326 albertel 2697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2698: my $result;
1.339 albertel 2699: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2700: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2701: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2702: if (!defined($mode)) { $mode='show'; }
2703: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2704: my $found=0;
2705: foreach my $type (split(',',$for)) {
2706: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2707: }
2708: if ($mode eq 'show' && !$found) {
1.326 albertel 2709: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2710: }
2711: if ($mode eq 'hide' && $found) {
1.326 albertel 2712: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2713: }
2714: } elsif ($target eq 'edit') {
2715: $result .=&Apache::edit::tag_start($target,$token);
2716: $result.=&Apache::edit::select_arg('Mode:','mode',
2717: [['show','Show'],
2718: ['hide','Hide']]
2719: ,$token);
2720: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2721: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2722: ['survey','Survey'],
1.465 raeburn 2723: ['surveycred','Survey (with credit)'],
2724: ['anonsurvey','Anonymous Survey'],
2725: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2726: ['problem','Homework Problem'],
1.479 raeburn 2727: ['practice','Practice Problem'],
2728: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2729: ,$token);
2730: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2731: } elsif ($target eq 'modified') {
2732: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2733: $safeeval,'mode','for');
2734: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2735: }
2736: return $result;
2737: }
2738:
2739: sub end_problemtype {
1.159 albertel 2740: return '';
1.24 albertel 2741: }
1.34 albertel 2742:
2743: sub start_startouttext {
1.159 albertel 2744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2745: my @result=(''.'');
2746: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2747:
2748: my $nesting =
2749: &Apache::lonxml::set_state('outtext',
2750: &Apache::lonxml::get_state('outtext')+1);
2751: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2752: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2753: }
1.159 albertel 2754: return (@result);
1.34 albertel 2755: }
1.159 albertel 2756:
1.34 albertel 2757: sub end_startouttext {
1.326 albertel 2758: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2759: my $result='';
2760: my $text='';
2761: if ($target eq 'edit') {
1.424 foxr 2762: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2763: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2764: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2765: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2766: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2767: .'</span></td>'
1.515 golterma 2768: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2769: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2770: .'</span></td>'
1.474 raeburn 2771: .'<td>'
2772: .&Apache::edit::insertlist($target,$token)
2773: .'</td>'
1.515 golterma 2774: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2775: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2776: &Apache::edit::end_row().
1.362 albertel 2777: &Apache::edit::start_spanning_row()."\n".
1.255 www 2778: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2779: }
2780: if ($target eq 'modified') {
1.219 albertel 2781: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2782: }
2783: if ($target eq 'tex') {
2784: $result .= '\noindent ';
2785: }
2786: return $result;
1.34 albertel 2787: }
1.159 albertel 2788:
1.34 albertel 2789: sub start_endouttext {
1.159 albertel 2790: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2791: my $result='';
2792: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2793: if ($target eq "modified") {
2794: $result='<endouttext />'.
1.377 albertel 2795: &Apache::edit::handle_insertafter('startouttext');
2796: }
1.404 albertel 2797:
2798: my $nesting =
2799: &Apache::lonxml::set_state('outtext',
2800: &Apache::lonxml::get_state('outtext')-1);
2801: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2802: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2803: &Apache::lonxml::set_state('outtext', 0);
2804: }
1.159 albertel 2805: return $result;
1.34 albertel 2806: }
1.159 albertel 2807:
1.34 albertel 2808: sub end_endouttext {
1.159 albertel 2809: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2810: my @result=('','');
2811: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2812: return (@result);
1.34 albertel 2813: }
1.159 albertel 2814:
1.45 albertel 2815: sub delete_startouttext {
1.326 albertel 2816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2817: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2818: my $text=$$parser['-1']->get_text("/endouttext");
2819: my $ntoken=$$parser['-1']->get_token();
2820: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2821: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2822: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2823: # they did the last time round
2824: &Apache::lonxml::increasedepth($ntoken);
2825: &Apache::lonxml::decreasedepth($ntoken);
2826: return 1;
1.193 www 2827: }
2828:
2829: sub start_simpleeditbutton {
2830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2831: my $result='';
1.284 albertel 2832: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2833: ($target eq 'web') &&
1.330 albertel 2834: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2835: my $url=$env{'request.noversionuri'};
1.193 www 2836: $url=~s/\?.*$//;
1.367 albertel 2837: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2838: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2839: # $result='<p class="LC_warning">'
2840: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2841: # .&Apache::loncommon::help_open_topic('Caching')
2842: # .'</p>';
1.486 www 2843: $result.=&Apache::loncommon::head_subbox(
2844: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2845: .&Apache::lonhtmlcommon::add_item_funclist(
2846: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2847: .&mt('Edit').'</a>')
1.486 www 2848: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2849:
1.193 www 2850: }
2851: return $result;
2852: }
2853:
2854: sub end_simpleeditbutton {
2855: return '';
1.45 albertel 2856: }
1.34 albertel 2857:
1.428 raeburn 2858: sub practice_problem_header {
2859: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2860: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2861: '</span>';
2862: }
2863:
1.479 raeburn 2864: sub randomizetry_problem_header {
2865: my ($problemstatus,$reqtries) = @_;
2866: my ($header,$text);
2867: if ($reqtries > 1) {
2868: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2869: if (($problemstatus eq 'no') ||
2870: ($problemstatus eq 'no_feedback_ever')) {
2871: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2872: } else {
2873: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2874: }
2875: } else {
2876: $header = &mt('New Problem Variation Each Try');
2877: if (($problemstatus eq 'no') ||
2878: ($problemstatus eq 'no_feedback_ever')) {
2879: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2880:
2881: } else {
2882: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2883: }
2884: }
2885: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2886: '<span class="LC_info">'.$text.'</span><hr />';
2887: }
2888:
2889: sub randomizetry_part_header {
2890: my ($problemstatus,$reqtries,$num) = @_;
2891: my ($header,$text);
2892: if ($reqtries eq 'none') {
2893: $header = &mt('No Question Variation');
2894: $text = &mt('For this question there will no new variation after a try.');
2895: } elsif ($reqtries > 1) {
2896: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2897: if (($problemstatus eq 'no') ||
2898: ($problemstatus eq 'no_feedback_ever')) {
2899: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2900: } else {
2901: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2902: }
2903: } else {
2904: $header = &mt('New Question Variation For Each Try');
2905: if (($problemstatus eq 'no') ||
2906: ($problemstatus eq 'no_feedback_ever')) {
2907: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2908: } else {
2909: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2910: }
2911: }
2912: my $output;
2913: if ($num > 1) {
2914: $output .= '<hr />';
2915: }
2916: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2917: '<span class="LC_info">'.$text.'</span><br /><br />';
2918: return $output;
2919: }
2920:
1.1 albertel 2921: 1;
2922: __END__
1.435 jms 2923:
2924: =pod
2925:
2926: =back
2927:
2928: =cut
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