Annotation of loncom/homework/response.pm, revision 1.240
1.38 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # various response type definitons response definition
1.53 albertel 3: #
1.240 ! raeburn 4: # $Id: response.pm,v 1.239 2015/02/20 22:14:49 damieng Exp $
1.53 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: #
1.5 www 28:
1.208 jms 29: =pod
30:
31: =head1 NAME
32:
1.218 raeburn 33: Apache::response.pm
1.208 jms 34:
35: =head1 SYNOPSIS
36:
37: This is part of the LearningOnline Network with CAPA project
38: described at http://www.lon-capa.org.
39:
40:
41: =head1 NOTABLE SUBROUTINES
42:
43: =over
44:
45: =item
46:
47: =back
48:
49: =cut
50:
51:
1.1 albertel 52: package Apache::response;
53: use strict;
1.93 albertel 54: use Apache::lonlocal;
1.120 albertel 55: use Apache::lonnet;
1.228 raeburn 56: use Apache::inputtags();
1.153 www 57: use Apache::lonmaxima();
1.214 www 58: use Apache::lonr();
1.238 raeburn 59: use Apache::lontexconvert();
1.1 albertel 60:
1.57 harris41 61: BEGIN {
1.139 www 62: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
1.1 albertel 63: }
64:
1.13 albertel 65: sub start_response {
1.73 albertel 66: my ($parstack,$safeeval)=@_;
1.136 albertel 67: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
1.73 albertel 68: if ($#Apache::inputtags::import > -1) {
69: &Apache::lonxml::debug("Turning :$id: into");
70: $id = join('_',@Apache::inputtags::import).'_'.$id;
71: &Apache::lonxml::debug("New :$id:");
72: }
73: push (@Apache::inputtags::response,$id);
74: push (@Apache::inputtags::responselist,$id);
75: @Apache::inputtags::inputlist=();
1.101 albertel 76: if ($Apache::inputtags::part eq '' &&
77: !$Apache::lonhomework::ignore_response_errors) {
1.97 albertel 78: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
1.92 albertel 79: }
80: if ($Apache::inputtags::response_with_no_part &&
81: $Apache::inputtags::part ne '0') {
1.97 albertel 82: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
1.92 albertel 83: }
84: if ($Apache::inputtags::part eq '0') {
85: $Apache::inputtags::response_with_no_part=1;
86: }
1.73 albertel 87: return $id;
1.13 albertel 88: }
89:
90: sub end_response {
1.79 albertel 91: #pop @Apache::inputtags::response;
1.73 albertel 92: @Apache::inputtags::inputlist=();
93: return '';
1.13 albertel 94: }
95:
1.41 albertel 96: sub start_hintresponse {
1.73 albertel 97: my ($parstack,$safeeval)=@_;
1.136 albertel 98: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
1.123 albertel 99: push (@Apache::inputtags::hint,$id);
100: push (@Apache::inputtags::hintlist,$id);
1.73 albertel 101: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
102: return $id;
1.41 albertel 103: }
104:
105: sub end_hintresponse {
1.123 albertel 106: pop @Apache::inputtags::hint;
1.73 albertel 107: if (defined($Apache::inputtags::paramstack[-1])) {
108: %Apache::inputtags::params=
109: @{ pop(@Apache::inputtags::paramstack) };
110: }
111: return '';
1.41 albertel 112: }
113:
1.99 albertel 114: my @randomseeds;
115: sub pushrandomnumber {
116: my $rand_alg=&Apache::lonnet::get_rand_alg();
117: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
118: $rand_alg eq '64bit2') {
119: # do nothing
120: } else {
121: my @seed=&Math::Random::random_get_seed();
1.127 albertel 122: push(@randomseeds,\@seed);
1.99 albertel 123: }
1.127 albertel 124: &Apache::response::setrandomnumber(@_);
1.99 albertel 125: }
126: sub poprandomnumber {
127: my $rand_alg=&Apache::lonnet::get_rand_alg();
128: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
129: $rand_alg eq '64bit2') {
130: return;
131: }
132: my $seed=pop(@randomseeds);
133: if ($seed) {
134: &Math::Random::random_set_seed(@$seed);
135: } else {
136: &Apache::lonxml::error("Unable to restore random algorithm.");
137: }
138: }
1.117 albertel 139:
1.26 albertel 140: sub setrandomnumber {
1.221 raeburn 141: my ($ignore_id2,$target,$rndseed) = @_;
142: if (!defined($rndseed)) {
143: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target);
144: }
1.88 albertel 145: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
1.73 albertel 146: &Apache::lonxml::debug("randseed $rndseed");
147: # $rndseed=unpack("%32i",$rndseed);
1.99 albertel 148: my $rand_alg=&Apache::lonnet::get_rand_alg();
1.126 albertel 149: my ($rndmod,$rndmod2);
1.119 albertel 150:
151: my ($id1,$id2,$shift_amt);
152: if ($Apache::lonhomework::parsing_a_problem) {
153: $id1=$Apache::inputtags::part;
154: if (defined($Apache::inputtags::response[-1])) {
155: $id2=$Apache::inputtags::response[-1];
156: }
157: $shift_amt=scalar(@Apache::inputtags::responselist);
158: } elsif ($Apache::lonhomework::parsing_a_task) {
1.141 albertel 159: $id1=&Apache::bridgetask::get_dim_id();
160: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
161: $id2=$Apache::bridgetask::instance{$id1}[-1];
1.142 albertel 162: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
163: } else {
164: $shift_amt=0;
1.119 albertel 165: }
166: }
167: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
1.99 albertel 168: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
169: $rand_alg eq '64bit2') {
1.119 albertel 170: $rndmod=(&Apache::lonnet::numval($id1) << 10);
171: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
1.110 albertel 172: } elsif ($rand_alg eq '64bit3') {
1.119 albertel 173: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
174: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
1.126 albertel 175: } elsif ($rand_alg eq '64bit4') {
1.119 albertel 176: my $shift=(4*$shift_amt)%30;
177: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
178: if (defined($id2)) {
179: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
1.110 albertel 180: }
1.126 albertel 181: } else {
182: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
1.99 albertel 183: }
184: if ($rndseed =~/([,:])/) {
185: my $char=$1;
186: use integer;
187: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
188: $num1+=$rndmod;
1.126 albertel 189: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
1.109 albertel 190: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.99 albertel 191: $rndseed=$num1.$char.$num2;
192: } else {
1.74 albertel 193: $rndseed+=$rndmod;
1.109 albertel 194: if($Apache::lonnet::_64bit) {
195: use integer;
196: $rndseed=(($rndseed<<32)>>32);
197: }
1.74 albertel 198: }
1.111 albertel 199: &Apache::lonxml::debug("randseed $rndmod $rndseed");
1.74 albertel 200: &Apache::lonnet::setup_random_from_rndseed($rndseed);
1.73 albertel 201: return '';
1.26 albertel 202: }
203:
1.7 www 204: sub meta_parameter_write {
1.38 albertel 205: my ($name,$type,$default,$display)=@_;
1.41 albertel 206: my $partref=$Apache::inputtags::part;
207: my $result='<parameter part="'.$Apache::inputtags::part.'"';
208: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 209: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
210: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 211: }
212: $result.= ' name="'.$name.'"'.
213: ' type="'.$type.'"'.
1.89 albertel 214: (defined($default)?' default="'.$default.'"':'').
215: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
1.41 albertel 216: .'></parameter>'
217: ."\n";
218: return $result;
1.33 www 219: }
220:
221: sub meta_package_write {
222: my $name=shift;
1.41 albertel 223: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
224: if(defined($Apache::inputtags::response[-1])) {
1.73 albertel 225: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
1.41 albertel 226: }
227: $result.=' package="'.$name.'"></parameter>'."\n";
228: return $result;
1.7 www 229: }
230:
231: sub meta_stores_write {
1.10 www 232: my ($name,$type,$display)=@_;
1.41 albertel 233: my $partref=$Apache::inputtags::part;
234: my $result = '<stores part="'.$Apache::inputtags::part.'"';
235: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 236: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
237: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 238: }
239: $result.= ' name="'.$name.'"'.
240: ' type="'.$type.'"'.
241: ' display="'.$display.' [Part: '.$partref.']"'.
242: "></stores>\n";
1.7 www 243: }
244:
1.207 jms 245: =pod
246:
1.210 raeburn 247: =item mandatory_part_meta()
1.207 jms 248:
249: Autogenerate metadata for mandatory
1.210 raeburn 250: input (from RAT or lonparmset) and
1.207 jms 251: output (to lonspreadsheet)
252: of each part
253:
254: Note: responseid-specific data 'submission' and 'awarddetail'
255: not available to spreadsheet -> skip here
256:
257: =cut
258:
1.210 raeburn 259:
260: sub mandatory_part_meta {
261: return &meta_package_write('part').
262: &meta_stores_write('solved','string','Problem Status').
263: &meta_stores_write('tries','int_zeropos','Number of Attempts').
264: &meta_stores_write('awarded','float','Partial Credit Factor');
1.86 albertel 265: }
266:
267: sub meta_part_order {
268: if (@Apache::inputtags::partlist) {
269: my @parts=@Apache::inputtags::partlist;
270: shift(@parts);
1.100 albertel 271: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
1.86 albertel 272: } else {
1.100 albertel 273: return '<partorder>0</partorder>'."\n";
274: }
275: }
276:
277: sub meta_response_order {
278: if (@Apache::inputtags::responselist) {
279: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
280: '</responseorder>'."\n";
1.86 albertel 281: }
1.14 albertel 282: }
283:
1.15 albertel 284: sub check_for_previous {
1.219 raeburn 285: my ($curresponse,$partid,$id,$last,$type) = @_;
1.73 albertel 286: my %previous;
287: $previous{'used'} = 0;
1.221 raeburn 288: my $questiontype = $Apache::lonhomework::type;
289: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'};
1.73 albertel 290: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
1.212 raeburn 291: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
1.160 albertel 292: if ( $last && $key =~ /^(\d+):/ ) {
293: next if ($1 >= $last);
294: }
1.73 albertel 295: &Apache::lonxml::debug("Trying $key");
296: my $pastresponse=$Apache::lonhomework::history{$key};
297: if ($pastresponse eq $curresponse) {
298: my $history;
299: if ( $key =~ /^(\d+):/ ) {
1.221 raeburn 300: $history=$1;
301: next if ((($questiontype eq 'randomizetry') ||
302: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) &&
303: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
1.73 albertel 304: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
305: $previous{'last'}='0';
306: push(@{ $previous{'version'} },$history);
307: } else {
1.221 raeburn 308: next if ((($questiontype eq 'randomizetry') ||
309: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) &&
310: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"}));
1.73 albertel 311: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
312: $previous{'last'}='1';
313: }
1.221 raeburn 314: $previous{'used'} = 1;
1.73 albertel 315: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
1.209 www 316: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
1.73 albertel 317: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
1.219 raeburn 318: } elsif ($type eq 'ci') {
319: if (lc($pastresponse) eq lc($curresponse)) {
320: if ($key =~ /^(\d+):/) {
1.221 raeburn 321: my $history = $1;
322: next if (($questiontype eq 'randomizetry') &&
323: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
324: push (@{$previous{'versionci'}},$history);
1.225 raeburn 325: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
1.219 raeburn 326: $previous{'usedci'} = 1;
327: }
328: }
329: }
1.32 albertel 330: }
1.73 albertel 331: }
332: &Apache::lonhomework::showhash(%previous);
333: return %previous;
1.54 albertel 334: }
335:
336: sub handle_previous {
1.73 albertel 337: my ($previous,$ad)=@_;
338: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
339: if ($$previous{'last'}) {
340: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
1.107 albertel 341: push(@Apache::inputtags::previous_version,$$previous{'version'});
1.217 raeburn 342: } elsif (($Apache::lonhomework::type ne 'survey') &&
343: ($Apache::lonhomework::type ne 'surveycred') &&
344: ($Apache::lonhomework::type ne 'anonsurvey') &&
1.221 raeburn 345: ($Apache::lonhomework::type ne 'anonsurveycred')) {
1.73 albertel 346: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
1.107 albertel 347: push(@Apache::inputtags::previous_version,$$previous{'version'});
1.73 albertel 348: }
1.54 albertel 349: }
1.44 albertel 350: }
351:
1.45 albertel 352: sub view_or_modify {
1.149 albertel 353: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.73 albertel 354: my $myself=0;
1.120 albertel 355: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
1.73 albertel 356: $myself=1;
357: }
358: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
359: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
360: if ($mgr) { return "M"; }
361: if ($vgr) { return "V"; }
362: if ($myself) { return "V"; }
363: return '';
1.45 albertel 364: }
365:
1.44 albertel 366: sub start_dataresponse {
1.73 albertel 367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
368: my $id = &Apache::response::start_response($parstack,$safeeval);
369: my $result;
370: if ($target eq 'web') {
371: $result = $token->[2]->{'display'}.':';
372: } elsif ($target eq 'meta') {
373: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
374: $token->[2]->{'type'},
375: $token->[2]->{'display'});
376: $result .= &Apache::response::meta_package_write('dataresponse');
377: }
378: return $result;
1.44 albertel 379: }
380:
381: sub end_dataresponse {
1.73 albertel 382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
383: my $result;
384: if ( $target eq 'web' ) {
385: } elsif ($target eq 'grade' ) {
1.120 albertel 386: if ( defined $env{'form.submitted'}) {
1.149 albertel 387: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
1.73 albertel 388: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
389: if ($allowed) {
1.94 albertel 390: &Apache::response::setup_params('dataresponse',$safeeval);
1.73 albertel 391: my $partid = $Apache::inputtags::part;
392: my $id = $Apache::inputtags::response['-1'];
1.120 albertel 393: my $response = $env{'form.HWVAL_'.$id};
1.73 albertel 394: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
395: if ( $response =~ /[^\s]/) {
396: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
397: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
398: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
399: }
400: } else {
1.235 bisitz 401: $result=&mt('Not Permitted to change values');
1.73 albertel 402: }
1.45 albertel 403: }
1.73 albertel 404: }
405: &Apache::response::end_response;
406: return $result;
1.3 albertel 407: }
408:
1.129 albertel 409: sub start_customresponse {
1.128 albertel 410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
411: my $id = &Apache::response::start_response($parstack,$safeeval);
1.129 albertel 412: push(@Apache::lonxml::namespace,'customresponse');
1.128 albertel 413: my $result;
1.157 www 414: @Apache::response::custom_answer=();
415: @Apache::response::custom_answer_type=();
1.128 albertel 416: &Apache::lonxml::register('Apache::response',('answer'));
417: if ($target eq 'web') {
418: if ( &Apache::response::show_answer() ) {
419: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
420: $safeeval);
1.152 albertel 421: $Apache::inputtags::answertxt{$id}=[$answer];
1.128 albertel 422: }
423: } elsif ($target eq 'edit') {
424: $result.=&Apache::edit::tag_start($target,$token);
425: $result.=&Apache::edit::text_arg('String to display for answer:',
1.220 www 426: 'answerdisplay',$token,'50');
1.128 albertel 427: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
428: } elsif ($target eq 'modified') {
429: my $constructtag;
430: $constructtag=&Apache::edit::get_new_args($token,$parstack,
431: $safeeval,'answerdisplay');
432: if ($constructtag) {
433: $result = &Apache::edit::rebuild_tag($token);
434: }
435: } elsif ($target eq 'answer' || $target eq 'grade') {
436: &Apache::response::reset_params();
437: } elsif ($target eq 'meta') {
1.129 albertel 438: $result .= &Apache::response::meta_package_write('customresponse');
1.128 albertel 439: }
440: return $result;
441: }
442:
1.129 albertel 443: sub end_customresponse {
1.128 albertel 444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
445: my $result;
446: my $part=$Apache::inputtags::part;
447: my $id=$Apache::inputtags::response[-1];
448: if ( $target eq 'grade' && &Apache::response::submitted() ) {
449: my $response = &Apache::response::getresponse();
1.146 albertel 450: if ($Apache::lonhomework::type eq 'exam' ||
451: &Apache::response::submitted('scantron')) {
452: &Apache::response::scored_response($part,$id);
453: } elsif ( $response =~ /[^\s]/ &&
1.158 www 454: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
1.128 albertel 455: if (!$Apache::lonxml::default_homework_loaded) {
456: &Apache::lonxml::default_homework_load($safeeval);
457: }
458: my %previous = &Apache::response::check_for_previous($response,
459: $part,$id);
460: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
461: $response;
462: my $error;
1.129 albertel 463: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
1.128 albertel 464: $response;
465:
1.216 www 466: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
1.128 albertel 467: if (!&Apache::inputtags::valid_award($award)) {
468: $error = $award;
469: $award = 'ERROR';
470: }
1.233 raeburn 471: if (($award eq 'INCORRECT' || $award eq 'APPROX_ANS' ||
472: $award eq 'EXACT_ANS')) {
473: if ($Apache::lonhomework::type eq 'survey') {
474: $award='SUBMITTED';
475: } elsif ($Apache::lonhomework::type eq 'surveycred') {
476: $award='SUBMITTED_CREDIT';
477: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
478: $award='ANONYMOUS';
479: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
480: $award='ANONYMOUS_CREDIT';
481: }
482: }
1.128 albertel 483: &Apache::response::handle_previous(\%previous,$award);
484: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
485: $award;
1.216 www 486: if ($award eq 'ASSIGNED_SCORE') {
487: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score;
488: }
1.128 albertel 489: if ($error) {
490: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
491: $error;
492: }
493: }
1.146 albertel 494: } elsif ( $target eq 'answer') {
495: $result = &Apache::response::answer_header('customresponse');
496: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
497: $safeeval);
498: if ($env{'form.answer_output_mode'} ne 'tex') {
499: $answer = '<b>'.$answer.'</b>';
500: }
501: $result .= &Apache::response::answer_part('customresponse',$answer);
502: $result .= &Apache::response::answer_footer('customresponse');
503: }
1.163 albertel 504: if ($target eq 'web') {
1.229 raeburn 505: &setup_prior_tries_hash(\&format_prior_response_custom);
1.163 albertel 506: }
1.146 albertel 507: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
508: $target eq 'tex' || $target eq 'analyze') {
1.227 raeburn 509: my $repetition = &repetition();
510: &Apache::lonxml::increment_counter($repetition,"$part.$id");
1.179 foxr 511: if ($target eq 'analyze') {
1.187 raeburn 512: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
1.179 foxr 513: &Apache::lonhomework::set_bubble_lines();
514: }
1.128 albertel 515: }
516: pop(@Apache::lonxml::namespace);
1.157 www 517: pop(@Apache::response::custom_answer);
518: pop(@Apache::response::custom_answer_type);
1.128 albertel 519: &Apache::lonxml::deregister('Apache::response',('answer'));
520: &Apache::response::end_response();
521: return $result;
522: }
523:
1.163 albertel 524: sub format_prior_response_custom {
525: my ($mode,$answer) =@_;
1.229 raeburn 526: if (ref($answer) eq 'ARRAY') {
527: $answer = '('.join(', ', @{ $answer }).')';
528: }
1.163 albertel 529: return '<span class="LC_prior_custom">'.
530: &HTML::Entities::encode($answer,'"<>&').'</span>';
531: }
1.140 www 532:
1.139 www 533: sub start_mathresponse {
1.140 www 534: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
535: my $id = &Apache::response::start_response($parstack,$safeeval);
536: push(@Apache::lonxml::namespace,'mathresponse');
1.139 www 537: my $result;
1.157 www 538: @Apache::response::custom_answer=();
539: @Apache::response::custom_answer_type=();
1.140 www 540: &Apache::lonxml::register('Apache::response',('answer'));
541: if ($target eq 'web') {
542: if ( &Apache::response::show_answer() ) {
543: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
544: $safeeval);
1.152 albertel 545: $Apache::inputtags::answertxt{$id}=[$answer];
1.140 www 546: }
1.191 www 547:
1.140 www 548: } elsif ($target eq 'edit') {
549: $result.=&Apache::edit::tag_start($target,$token);
550: $result.=&Apache::edit::text_arg('String to display for answer:',
1.220 www 551: 'answerdisplay',$token,'50');
1.150 www 552: $result.=&Apache::edit::select_arg('Algebra System:',
553: 'cas',
1.214 www 554: ['maxima','R'],
1.150 www 555: $token);
556: $result.=&Apache::edit::text_arg('Argument Array:',
1.193 www 557: 'args',$token).
558: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
1.192 www 559: $result.=&Apache::edit::text_arg('Libraries:',
1.193 www 560: 'libraries',$token).
561: &Apache::loncommon::help_open_topic('Maxima_Libraries');
1.140 www 562: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
563: } elsif ($target eq 'modified') {
564: my $constructtag;
565: $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.192 www 566: $safeeval,'answerdisplay','cas','args','libraries');
1.140 www 567: if ($constructtag) {
568: $result = &Apache::edit::rebuild_tag($token);
569: }
570: } elsif ($target eq 'answer' || $target eq 'grade') {
571: &Apache::response::reset_params();
572: } elsif ($target eq 'meta') {
573: $result .= &Apache::response::meta_package_write('mathresponse');
1.139 www 574: }
575: return $result;
576: }
577:
1.191 www 578: sub edit_mathresponse_button {
1.238 raeburn 579: my ($partid,$id)=@_;
580: my $field = 'HWVAL_'.$partid.'_'.$id;
1.237 damieng 581: my $btype = $env{'browser.type'};
582: my $bversion = $env{'browser.version'};
583: if (($btype eq 'explorer' && $bversion < 9) || ($btype eq 'safari' && $bversion < 3) ||
584: ($btype eq 'mozilla' && $bversion < 3)) {
585: # DragMath applet
586: my $button=&mt('Edit Answer');
587: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
588: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
589: return(<<ENDFORMULABUTTON);
1.213 bisitz 590: <script type="text/javascript" language="JavaScript">
1.238 raeburn 591: function LC_mathedit_${field} (LCtextline) {
592: thenumber = LCtextline;
593: var thedata = '';
594: if (document.getElementById(LCtextline)) {
595: thedata = document.getElementById(LCtextline).value;
596: }
1.234 raeburn 597: newwin = window.open("/adm/dragmath/MaximaPopup.html","","width=565,height=400,resizable");
1.191 www 598: }
599: </script>
1.238 raeburn 600: <a href="javascript:LC_mathedit_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a>
1.191 www 601: ENDFORMULABUTTON
1.237 damieng 602:
603: } else {
1.238 raeburn 604: # LON-CAPA math equation editor
605: my $mathjaxjs;
606: unless (lc(&Apache::lontexconvert::tex_engine()) eq 'mathjax') {
607: $mathjaxjs = <<"MATHJAX_SCRIPT";
608: var mathjaxscript = document.createElement("script");
609: mathjaxscript.type = "text/javascript";
610: mathjaxscript.src = "/adm/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML";
611: document.body.appendChild(mathjaxscript);
612: MATHJAX_SCRIPT
613: }
614: return(<<EQ_EDITOR_SCRIPT);
1.237 damieng 615: <script type="text/javascript">
1.238 raeburn 616: var LCmathField = document.getElementById('${field}');
617: LCmathField.className += ' math'; // note the space
1.239 damieng 618: LCmathField.setAttribute('data-implicit_operators', 'true');
1.237 damieng 619: var LCMATH_started;
620: if (typeof LCMATH_started === 'undefined') {
1.238 raeburn 621: $mathjaxjs
1.237 damieng 622: LCMATH_started = true;
623: var script = document.createElement("script");
624: script.type = "text/javascript";
625: script.src = "/adm/LC_math_editor/LC_math_editor.min.js";
626: document.body.appendChild(script);
627: window.addEventListener('load', function(e) {
628: LCMATH.initEditors();
629: }, false);
630: }
631: </script>
632: EQ_EDITOR_SCRIPT
633: }
1.191 www 634: }
635:
1.139 www 636: sub end_mathresponse {
1.140 www 637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
638: my $result;
639: my $part=$Apache::inputtags::part;
640: my $id=$Apache::inputtags::response[-1];
641: if ( $target eq 'grade' && &Apache::response::submitted() ) {
642: my $response = &Apache::response::getresponse();
1.150 www 643: if ( $response =~ /[^\s]/ ) {
1.140 www 644: if (!$Apache::lonxml::default_homework_loaded) {
645: &Apache::lonxml::default_homework_load($safeeval);
646: }
647: my %previous = &Apache::response::check_for_previous($response,
648: $part,$id);
649: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
650: $response;
651: my $error;
1.155 www 652: my $award;
653: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
654: if ($cas eq 'maxima') {
655: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
1.192 www 656: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
657: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
1.155 www 658: }
1.214 www 659: if ($cas eq 'R') {
660: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
661: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
662: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
663: }
664:
1.140 www 665: if (!&Apache::inputtags::valid_award($award)) {
1.151 albertel 666: $error = $award;
667: $award = 'ERROR';
1.140 www 668: }
1.233 raeburn 669: if (($award eq 'INCORRECT' || $award eq 'APPROX_ANS' ||
670: $award eq 'EXACT_ANS')) {
671: if ($Apache::lonhomework::type eq 'survey') {
672: $award='SUBMITTED';
673: } elsif ($Apache::lonhomework::type eq 'surveycred') {
674: $award='SUBMITTED_CREDIT';
675: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
676: $award='ANONYMOUS';
677: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
678: $award='ANONYMOUS_CREDIT';
679: }
680: }
1.140 www 681: &Apache::response::handle_previous(\%previous,$award);
682: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
683: $award;
684: if ($error) {
685: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
686: $error;
687: }
688: }
689: }
1.163 albertel 690: if ($target eq 'web') {
691: &setup_prior_tries_hash(\&format_prior_response_math);
1.203 riegler 692: my $partid = $Apache::inputtags::part;
693: my $id = $Apache::inputtags::response[-1];
694: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
1.205 raeburn 695: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
1.238 raeburn 696: $result.=&edit_mathresponse_button($partid,$id);
1.202 riegler 697: }
1.163 albertel 698: }
699:
1.140 www 700: pop(@Apache::lonxml::namespace);
1.157 www 701: pop(@Apache::response::custom_answer);
702: pop(@Apache::response::custom_answer_type);
1.140 www 703: &Apache::lonxml::deregister('Apache::response',('answer'));
704: &Apache::response::end_response();
705: return $result;
1.139 www 706: }
707:
1.163 albertel 708: sub format_prior_response_math {
709: my ($mode,$answer) =@_;
710: return '<span class="LC_prior_math">'.
711: &HTML::Entities::encode($answer,'"<>&').'</span>';
712: }
713:
1.156 www 714: sub implicit_multiplication {
715: my ($expression)=@_;
716: # Escape scientific notation, so 3e8 does not become 3*e*8
717: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
718: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
719: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
720: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
721: # Fill in multiplication signs
722: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
1.176 albertel 723: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
1.156 www 724: # )( -> )*(; ) ( -> )*(
725: $expression=~s/\)\s*\(/\)\*\(/gs;
726: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
727: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
728: # a ( -> a*(
1.174 riegler 729: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
1.156 www 730: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
1.174 riegler 731: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
1.156 www 732: # 3&8 -> 3e8; 3&-4 -> 3e-4
733: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
734: return $expression;
735: }
1.140 www 736:
1.128 albertel 737: sub start_answer {
738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
739: my $result;
1.157 www 740: push(@Apache::response::custom_answer,
741: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
742: push(@Apache::response::custom_answer_type,
743: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
744: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
1.128 albertel 745: if ($target eq "edit" ) {
746: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
747: $result.=&Apache::edit::editfield($token->[1],
1.158 www 748: $Apache::response::custom_answer[-1],
1.128 albertel 749: '',80,4);
750: } elsif ( $target eq "modified" ) {
751: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
752: }
753: return $result;
754: }
755:
756: sub end_answer {
757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
758: if ($target eq 'edit' ) {
759: return &Apache::edit::end_table();
760: }
761: }
762:
1.83 albertel 763: sub decide_package {
764: my ($tagstack)=@_;
765: my $package;
766: if ($$tagstack[-1] eq 'parameter') {
767: $package='part';
768: } else {
769: my $i=-1;
770: while (defined($$tagstack[$i])) {
771: if ($$tagstack[$i] =~ /(response|hint)$/) {
772: $package=$$tagstack[$i];
773: last;
774: }
775: $i--;
776: }
777: }
778: return $package;
779: }
780:
1.3 albertel 781: sub start_responseparam {
1.73 albertel 782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
783: my $result='';
784: if ($target eq 'meta') {
785: $result = &meta_parameter_write($token->[2]->{'name'},
786: $token->[2]->{'type'},
787: $token->[2]->{'default'},
788: $token->[2]->{'description'});
789: } elsif ($target eq 'edit') {
790: $result.=&Apache::edit::tag_start($target,$token);
1.83 albertel 791: my $optionlist;
792: my $package=&decide_package($tagstack);
793: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
794: if ($key =~ /^\Q$package\E&(.*)&display$/) {
795: $optionlist.='<option value="'.$1.'">'.
796: $Apache::lonnet::packagetab{$key}.'</option>';
797: }
798: }
799: if (defined($optionlist)) {
1.206 bisitz 800: $result.=&mt('Use template:').' <select name="'.
1.83 albertel 801: &Apache::edit::html_element_name('parameter_package').'">'.
802: '<option value=""></option>'.$optionlist.'</select><br />';
803: }
1.73 albertel 804: $result.=&Apache::edit::text_arg('Name:','name',$token).
805: &Apache::edit::text_arg('Type:','type',$token).
806: &Apache::edit::text_arg('Description:','description',$token).
807: &Apache::edit::text_arg('Default:','default',$token).
808: "</td></tr>";
809: $result.=&Apache::edit::end_table;
810: } elsif ($target eq 'modified') {
1.83 albertel 811: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
812: $safeeval,'name','type',
813: 'description','default');
814: my $element=&Apache::edit::html_element_name('parameter_package');
1.120 albertel 815: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
816: my $name=$env{"form.$element"};
1.83 albertel 817: my $tag=&decide_package($tagstack);
818: $token->[2]->{'name'}=$name;
819: $token->[2]->{'type'}=
820: $Apache::lonnet::packagetab{"$tag&$name&type"};
821: $token->[2]->{'description'}=
822: $Apache::lonnet::packagetab{"$tag&$name&display"};
823: $token->[2]->{'default'}=
824: $Apache::lonnet::packagetab{"$tag&$name&default"};
1.186 raeburn 825: $token->[3] = ['name','type','description','default'];
1.83 albertel 826: $constructtag=1;
827: }
1.73 albertel 828: if ($constructtag) {
829: $result = &Apache::edit::rebuild_tag($token);
830: }
831: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
832: $target eq 'tex' || $target eq 'analyze' ) {
1.120 albertel 833: if ($env{'request.state'} eq 'construct') {
1.73 albertel 834: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
835: my $default=&Apache::lonxml::get_param('default',$parstack,
836: $safeeval);
837: if ($name) {$Apache::inputtags::params{$name}=$default;}
838: }
1.52 albertel 839: }
1.73 albertel 840: return $result;
1.3 albertel 841: }
842:
843: sub end_responseparam {
1.73 albertel 844: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
845: if ($target eq 'edit') { return ('','no'); }
846: return '';
1.55 albertel 847: }
848:
849: sub start_parameter {
1.114 albertel 850: return &start_responseparam(@_);
1.55 albertel 851: }
852:
853: sub end_parameter {
1.114 albertel 854: return &end_responseparam(@_);
1.42 albertel 855: }
856:
1.67 albertel 857: sub reset_params {
858: %Apache::inputtags::params=();
859: }
860:
1.42 albertel 861: sub setup_params {
1.94 albertel 862: my ($tag,$safeeval) = @_;
1.42 albertel 863:
1.120 albertel 864: if ($env{'request.state'} eq 'construct') { return; }
1.73 albertel 865: my %paramlist=();
866: foreach my $key (keys(%Apache::lonnet::packagetab)) {
1.161 albertel 867: if ($key =~ /^\Q$tag\E/) {
1.73 albertel 868: my ($package,$name) = split(/&/,$key);
869: $paramlist{$name}=1;
870: }
1.42 albertel 871: }
1.73 albertel 872: foreach my $key (keys(%paramlist)) {
873: my $entry= 'resource.'.$Apache::inputtags::part;
874: if (defined($Apache::inputtags::response[-1])) {
875: $entry.='_'.$Apache::inputtags::response[-1];
876: }
877: $entry.='.'.$key;
878: &Apache::lonxml::debug("looking for $entry");
879: my $value = &Apache::lonnet::EXT("$entry");
880: &Apache::lonxml::debug("$key has value :$value:");
881: if ($value eq 'con_lost' || $value =~ /^error:/) {
882: &Apache::lonxml::debug("using nothing");
883: $Apache::inputtags::params{$key}='';
884: } else {
1.94 albertel 885: my $string="{return qq\0".$value."\0}";
886: my $newvalue=&Apache::run::run($string,$safeeval,1);
887: if (defined($newvalue)) { $value=$newvalue; }
1.73 albertel 888: $Apache::inputtags::params{$key}=$value;
889: }
1.42 albertel 890: }
1.48 albertel 891: }
892:
1.132 albertel 893: {
894: my @answer_bits;
1.147 albertel 895: my $need_row_start;
1.132 albertel 896:
1.48 albertel 897: sub answer_header {
1.147 albertel 898: my ($type,$increment,$rows) = @_;
1.73 albertel 899: my $result;
1.120 albertel 900: if ($env{'form.answer_output_mode'} eq 'tex') {
1.132 albertel 901: undef(@answer_bits);
1.133 albertel 902: my $bit;
903: if ($Apache::lonhomework::type eq 'exam') {
904: $bit = ($Apache::lonxml::counter+$increment).') ';
905: } else {
1.235 bisitz 906: $bit .= ' '.&mt('Answer for Part: [_1]',
907: '\verb|'.$Apache::inputtags::part.'|').' ';
1.133 albertel 908: }
909: push(@answer_bits,$bit);
1.73 albertel 910: } else {
1.147 albertel 911: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
1.132 albertel 912: $result = '<table border="1"><tr>';
913: if ($Apache::lonhomework::type eq 'exam') {
1.147 albertel 914: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
1.132 albertel 915: } else {
1.147 albertel 916: $result .= $td.&mt('Answer for Part: [_1]',
917: $Apache::inputtags::part).'</td>';
1.132 albertel 918: }
919: $result .= "\n";
1.147 albertel 920: $need_row_start = 0;
921: }
922: return $result;
923: }
924:
925: sub next_answer {
926: my ($type) = @_;
927: my $result;
928: if ($env{'form.answer_output_mode'} eq 'tex') {
929: # FIXME ... need to do something with tex mode
930: } else {
931: $result .= "</tr>";
932: $need_row_start = 1;
1.73 albertel 933: }
934: return $result;
1.48 albertel 935: }
936:
937: sub answer_part {
1.148 albertel 938: my ($type,$answer,$args) = @_;
1.73 albertel 939: my $result;
1.120 albertel 940: if ($env{'form.answer_output_mode'} eq 'tex') {
1.148 albertel 941: if (!$args->{'no_verbatim'}) {
942: my $to_use='|';
943: foreach my $value (32..126) {
944: my $char=pack('c',$value);
945: if ($answer !~ /\Q$char\E/) {
946: $to_use=$char;
947: last;
948: }
949: }
1.189 www 950: my $fullanswer=$answer;
1.188 www 951: $answer='';
1.189 www 952: foreach my $element (split(/[\;]/,$fullanswer)) {
953: if ($element ne '') {
954: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
955: }
1.188 www 956: }
1.124 albertel 957: }
1.132 albertel 958: if ($answer ne '') {
1.148 albertel 959: push(@answer_bits,$answer);
1.132 albertel 960: }
1.73 albertel 961: } else {
1.147 albertel 962: if ($need_row_start) {
963: $result .= '<tr>';
964: $need_row_start = 0;
965: }
1.189 www 966: $result .= '<td>'.$answer.'</td>';
1.73 albertel 967: }
968: return $result;
1.48 albertel 969: }
970:
971: sub answer_footer {
1.73 albertel 972: my ($type) = @_;
973: my $result;
1.120 albertel 974: if ($env{'form.answer_output_mode'} eq 'tex') {
1.189 www 975: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
976: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
977: for (my $i=1;$i<=$#answer_bits;$i++) {
978: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
979: }
980: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
1.73 albertel 981: } else {
1.185 albertel 982: if (!$need_row_start) {
983: $result .= '</tr>';
984: }
985: $result .= '</table>';
1.73 albertel 986: }
987: return $result;
1.1 albertel 988: }
1.2 albertel 989:
1.132 albertel 990: }
991:
1.62 albertel 992: sub showallfoils {
1.120 albertel 993: if (defined($env{'form.showallfoils'})) {
1.149 albertel 994: my ($symb)=&Apache::lonnet::whichuser();
1.120 albertel 995: if (($env{'request.state'} eq 'construct') ||
996: ($env{'user.adv'} && $symb eq '') ||
1.118 foxr 997: ($Apache::lonhomework::viewgrades) ) {
1.102 albertel 998: return 1;
999: }
1.73 albertel 1000: }
1.108 albertel 1001: if ($Apache::lonhomework::type eq 'survey') { return 1; }
1.217 raeburn 1002: if ($Apache::lonhomework::type eq 'surveycred') { return 1; }
1003: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; }
1004: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; }
1005:
1.102 albertel 1006: return 0;
1.70 albertel 1007: }
1008:
1.168 albertel 1009: =pod
1010:
1.210 raeburn 1011: =item &getresponse();
1.168 albertel 1012:
1013: Retreives the current submitted response, helps out in the case of
1014: scantron mode.
1015:
1016: Returns either the exact text of the submission, or a bubbled response
1017: converted to something usable.
1018:
1019: Optional Arguments:
1.171 albertel 1020: $offset - (defaults to 1) if a problem has more than one bubble
1021: response, pass in the number of the bubble wanted, (the
1022: first bubble associated with a problem has an offset of 1,
1023: the second bubble is 2
1024:
1.168 albertel 1025: $resulttype - undef -> a number between 0 and 25
1026: 'A is 1' -> a number between 1 and 26
1027: 'letter' -> a letter between 'A' and 'Z'
1.172 foxr 1028: $lines - undef problem only needs a single line of bubbles.
1029: nonzero Problem wants the first nonempty response in
1030: $lines lines of bubbles.
1031: $bubbles_per_line - Must be provided if lines is defined.. number of
1032: bubbles on a line.
1.173 albertel 1033:
1.168 albertel 1034: =cut
1035:
1.70 albertel 1036: sub getresponse {
1.172 foxr 1037: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
1.70 albertel 1038: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
1039: my $response;
1.168 albertel 1040: if (!defined($offset)) {
1.170 albertel 1041: $offset=1;
1.70 albertel 1042: } else {
1.168 albertel 1043: $formparm.=":$offset";
1.70 albertel 1044: }
1.172 foxr 1045: if (!defined($lines)) {
1046: $lines = 1;
1047: }
1.70 albertel 1048: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
1049: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
1050: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
1051: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
1.120 albertel 1052: if ($env{'form.submitted'} eq 'scantron') {
1.71 albertel 1053: my $part = $Apache::inputtags::part;
1054: my $id = $Apache::inputtags::response[-1];
1.172 foxr 1055:
1056: my $line;
1.211 raeburn 1057: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
1058: if (!$startline) {
1059: $startline = $Apache::lonxml::counter;
1060: }
1.172 foxr 1061: for ($line = 0; $line < $lines; $line++) {
1.211 raeburn 1062: my $theline = $startline+$offset-1+$line;
1.184 foxr 1063: $response = $env{"scantron.$theline.answer"};
1064: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
1.172 foxr 1065: last;
1066: }
1.211 raeburn 1067:
1.172 foxr 1068: }
1.178 albertel 1069:
1070: # save bubbled letter for later
1071: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
1072: $response;
1.90 albertel 1073: if ($resulttype ne 'letter') {
1.226 raeburn 1074: $response = $let_to_num{$response};
1075: if ($resulttype eq 'A is 1') {
1076: if ($response ne "") {
1077: $response = $response+1;
1078: }
1.104 albertel 1079: }
1.172 foxr 1080: if ($response ne "") {
1081: $response += $line * $bubbles_per_line;
1082: }
1083: } else {
1084: if ($response ne "") {
1.226 raeburn 1085: my $raw = $response;
1.172 foxr 1086: $response = chr(ord($response) + $line * $bubbles_per_line);
1087: }
1.90 albertel 1088: }
1.172 foxr 1089:
1.70 albertel 1090: } else {
1.120 albertel 1091: $response = $env{$formparm};
1.70 albertel 1092: }
1.172 foxr 1093: #
1094: # If we have a nonempty answer, correct the numeric value
1095: # of the answer for the line on which it was found.
1096: #
1097:
1.70 albertel 1098: return $response;
1.62 albertel 1099: }
1.71 albertel 1100:
1.168 albertel 1101: =pod
1102:
1103: =item &repetition();
1104:
1.227 raeburn 1105: In scalar context:
1106:
1107: returns: the number of lines that are required to encode the weight.
1.226 raeburn 1108: (Default is for 10 bubbles per bubblesheet item; other (integer)
1109: values can be specified by using a custom Bubblesheet format file
1110: with an eighteenth entry (BubblesPerRow) set to the integer
1111: appropriate for the bubblesheets which will be used to assign weights.
1.168 albertel 1112:
1.227 raeburn 1113: In array context:
1114:
1115: returns: number of lines required to encode weight, and bubbles/line.
1116:
1.168 albertel 1117: =cut
1118:
1.71 albertel 1119: sub repetition {
1120: my $id = $Apache::inputtags::part;
1121: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.121 albertel 1122: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1.226 raeburn 1123: my $bubbles_per_row;
1124: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1125: ($env{'form.bubbles_per_row'} > 0)) {
1126: $bubbles_per_row = $env{'form.bubbles_per_row'};
1127: } else {
1128: $bubbles_per_row = 10;
1129: }
1.227 raeburn 1130: my $denominator = $bubbles_per_row;
1131: if (($env{'form.scantron_lastbubblepoints'} == 0) &&
1132: ($bubbles_per_row > 1)) {
1133: $denominator = $bubbles_per_row - 1;
1134: }
1135: my $repetition = int($weight/$denominator);
1136: if ($weight % $denominator != 0) { $repetition++; }
1137: if (wantarray) {
1138: return ($repetition,$bubbles_per_row);
1139: }
1.72 albertel 1140: return $repetition;
1.227 raeburn 1141:
1.72 albertel 1142: }
1143:
1.168 albertel 1144: =pod
1145:
1.210 raeburn 1146: =item &scored_response();
1.168 albertel 1147:
1148: Sets the results hash elements
1149:
1150: resource.$part_id.$response_id.awarded - to the floating point
1151: number between 0 and 1 that was awarded on the bubbled input
1152:
1153: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1154:
1155: Returns
1156:
1157: the number of bubble sheet lines that were used (and likely need to
1158: be passed to &Apache::lonxml::increment_counter()
1159:
1160: Arguments
1161:
1162: $part_id - id of the part to grade
1163: $response_id - id of the response to grade
1164:
1165:
1166: =cut
1167:
1.72 albertel 1168: sub scored_response {
1169: my ($part,$id)=@_;
1170: my $repetition=&repetition();
1.227 raeburn 1171: my $bubbles_per_row;
1172: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1173: ($env{'form.bubbles_per_row'} > 0)) {
1174: $bubbles_per_row = $env{'form.bubbles_per_row'};
1175: } else {
1176: $bubbles_per_row = 10;
1177: }
1.72 albertel 1178: my $score=0;
1179: for (my $i=0;$i<$repetition;$i++) {
1.227 raeburn 1180: # A is 1, B is 2, etc.
1.72 albertel 1181: my $increase=&Apache::response::getresponse($i+1);
1.227 raeburn 1182: unless (($increase == $bubbles_per_row-1) &&
1183: ($env{'form.scantron_lastbubblepoints'} == 0)) {
1184: # (get response return 0-9 and then we add 1)
1185: if ($increase ne '') {
1186: $score+=$increase+1;
1187: }
1188: }
1.72 albertel 1189: }
1190: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1.91 albertel 1191: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1.72 albertel 1192: my $pcr=$score/$weight;
1193: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1194: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1195: 'ASSIGNED_SCORE';
1.71 albertel 1196: return $repetition;
1.78 albertel 1197: }
1198:
1199: sub whichorder {
1.221 raeburn 1200: my ($max,$randomize,$showall,$hash,$rndseed)=@_;
1.78 albertel 1201: #&Apache::lonxml::debug("man $max randomize $randomize");
1.231 raeburn 1202: my @names;
1203: if (ref($hash->{'names'}) eq 'ARRAY') {
1204: @names = @{$hash->{'names'}};
1205: }
1206: return if (!@names);
1.78 albertel 1207: my @whichopt =();
1208: my (%top,@toplist,%bottom,@bottomlist);
1209: if (!($showall || ($randomize eq 'no'))) {
1210: my $current=0;
1211: foreach my $name (@names) {
1212: $current++;
1213: if ($$hash{"$name.location"} eq 'top') {
1214: $top{$name}=$current;
1215: } elsif ($$hash{"$name.location"} eq 'bottom') {
1216: $bottom{$name}=$current;
1217: }
1218: }
1219: }
1220: my $topcount=0;
1221: my $bottomcount=0;
1222: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1223: && ($#names > -1)) {
1224: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1225: my $aopt;
1226: if ($showall || ($randomize eq 'no')) {
1227: $aopt=0;
1228: } else {
1229: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1230: }
1231: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1232: $aopt=splice(@names,$aopt,1);
1233: #&Apache::lonxml::debug("Picked $aopt");
1234: if ($top{$aopt}) {
1235: $toplist[$top{$aopt}]=$aopt;
1236: $topcount++;
1237: } elsif ($bottom{$aopt}) {
1238: $bottomlist[$bottom{$aopt}]=$aopt;
1239: $bottomcount++;
1240: } else {
1241: push (@whichopt,$aopt);
1242: }
1243: }
1244: for (my $i=0;$i<=$#toplist;$i++) {
1245: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1246: }
1247: for (my $i=0;$i<=$#bottomlist;$i++) {
1248: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1249: }
1250: return @whichopt;
1.71 albertel 1251: }
1252:
1.85 albertel 1253: sub show_answer {
1254: my $part = $Apache::inputtags::part;
1.228 raeburn 1255: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1.85 albertel 1256: my $status = $Apache::inputtags::status[-1];
1.228 raeburn 1257: my $canshow = 0;
1258: if ($award =~ /^correct/) {
1.230 raeburn 1259: if (($Apache::lonhomework::history{"resource.$part.awarded"} >= 1) ||
1260: (&Apache::lonnet::EXT("resource.$part.retrypartial") !~/^1|on|yes$/)) {
1.228 raeburn 1261: $canshow = 1;
1262: }
1263: }
1264: return (($canshow && &Apache::lonhomework::show_problem_status())
1265: || $status eq "SHOW_ANSWER");
1.85 albertel 1266: }
1.87 albertel 1267:
1268: sub analyze_store_foilgroup {
1269: my ($shown,$attrs)=@_;
1270: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1271: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1272: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1273: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1274: foreach my $attr (@$attrs) {
1275: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1276: $Apache::response::foilgroup{"$name.".$attr};
1277: }
1278: }
1279: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1.96 albertel 1280: }
1281:
1282: sub check_if_computed {
1283: my ($token,$parstack,$safeeval,$name)=@_;
1284: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1.106 matthew 1285: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1.96 albertel 1286: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1287: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1288: }
1.87 albertel 1289: }
1290:
1291: sub pick_foil_for_concept {
1292: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1.231 raeburn 1293: my @names;
1294: if (ref($Apache::response::conceptgroup{'names'}) eq 'ARRAY') {
1295: @names = @{ $Apache::response::conceptgroup{'names'} };
1296: }
1297: return if (!@names);
1.87 albertel 1298: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1299: my $name=$names[$pick];
1300: push @{ $Apache::response::foilgroup{'names'} }, $name;
1301: foreach my $attr (@$attrs) {
1302: $Apache::response::foilgroup{"$name.".$attr} =
1303: $Apache::response::conceptgroup{"$name.".$attr};
1304: }
1305: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1306: $Apache::response::foilgroup{"$name.concept"} = $concept;
1307: &Apache::lonxml::debug("Selecting $name in $concept");
1308: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1309: if ($target eq 'analyze') {
1310: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1311: $concept);
1312: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1313: $Apache::response::conceptgroup{'names'};
1314: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1315: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1316: $name);
1317: foreach my $attr (@$attrs) {
1318: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1319: $Apache::response::conceptgroup{"$name.$attr"};
1320: }
1321: }
1322: }
1323: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1324: $hinthash->{"$part_id.concept.$concept"}=
1325: $Apache::response::conceptgroup{'names'};
1326:
1327: }
1.208 jms 1328:
1329: =pod
1330:
1331: =item get_response_param()
1332:
1333: Get a parameter associated with a problem.
1334: Parameters:
1335: $id - the id of the paramater, either a part id,
1336: or a partid and responspe id joined by _
1337: $name - Name of the parameter to fetch
1338: $default - Default value for the paramter.
1339:
1340: =cut
1341:
1.95 albertel 1342: sub get_response_param {
1343: my ($id,$name,$default)=@_;
1344: my $parameter;
1.120 albertel 1345: if ($env{'request.state'} eq 'construct' &&
1.95 albertel 1346: defined($Apache::inputtags::params{$name})) {
1347: $parameter=$Apache::inputtags::params{$name};
1348: } else {
1349: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1350: }
1351: if (!defined($parameter) || $parameter eq '') {
1352: $parameter = $default;
1353: }
1354: return $parameter;
1355: }
1.87 albertel 1356:
1.113 albertel 1357: sub submitted {
1358: my ($who)=@_;
1359:
1360: # when scatron grading any submission is a submission
1.120 albertel 1361: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1.113 albertel 1362: # if the caller only cared if this was a scantron submission
1363: if ($who eq 'scantron') { return 0; }
1364: # if the Submit Answer button for this particular part was pressed
1365: my $partid=$Apache::inputtags::part;
1.159 albertel 1366: if ($env{'form.submitted'} eq "part_$partid") {
1367: return 1;
1368: }
1369: if ($env{'form.submitted'} eq "yes"
1370: && defined($env{'form.submit_'.$partid})) {
1371: return 1;
1372: }
1.122 albertel 1373: # Submit All button on a .page was pressed
1374: if (defined($env{'form.all_submit'})) { return 1; }
1.204 bisitz 1375: # otherwise no submission occurred
1.113 albertel 1376: return 0;
1377: }
1.117 albertel 1378:
1.130 albertel 1379: sub add_to_gradingqueue {
1.149 albertel 1380: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.131 albertel 1381: if ( $courseid eq ''
1382: || $symb eq ''
1.135 albertel 1383: || $env{'request.state'} eq 'construct'
1384: || $Apache::lonhomework::type ne 'problem') {
1.131 albertel 1385: return;
1386: }
1.130 albertel 1387:
1388: my %queue_info = ( 'type' => 'problem',
1389: 'time' => time);
1390:
1391: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1392: $queue_info{'slot'}=
1393: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1394: }
1395:
1396: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1397: if ($result ne 'ok') {
1398: &Apache::lonxml::error("add_to_queue said $result");
1399: }
1400: }
1401:
1.208 jms 1402: =pod
1403:
1404: =item check_status()
1405:
1406: basically undef and 0 (both false) mean that they still have work to do
1407: and all true values mean that they can't do any more work
1408:
1409: a return of undef means it is unattempted
1410: a return of 0 means it is attmpted and wrong but still has tries
1411: a return of 1 means it is marked correct
1412: a return of 2 means they have exceed maximum number of tries
1413: a return of 3 means it after the answer date
1414:
1415: =cut
1416:
1.117 albertel 1417: sub check_status {
1418: my ($id)=@_;
1.143 albertel 1419: if (!defined($id)) { $id=$Apache::inputtags::part; }
1.117 albertel 1420: my $curtime=&Apache::lonnet::EXT('system.time');
1421: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1.236 raeburn 1422: my $duedate=&Apache::lonhomework::due_date($id);
1.117 albertel 1423: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1424: if ( $opendate && $curtime > $opendate &&
1425: $duedate && $curtime > $duedate &&
1426: $answerdate && $curtime > $answerdate) {
1427: return 3;
1428: }
1429: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1430: if ($status =~ /^correct/) { return 1; }
1431: if (!$status) { return undef; }
1432: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1433: if ($maxtries eq '') { $maxtries=2; }
1434: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1435: if ($curtries < $maxtries) { return 0; }
1436: return 2;
1437: }
1438:
1.177 albertel 1439: =pod
1440:
1.210 raeburn 1441: =item setup_prior_tries_hash()
1.177 albertel 1442:
1443: Foreach each past .submission $func is called with 3 arguments
1444: - the mode to set things up for (currently always 'grade')
1445: - the stored .submission string
1446: - The expansion of $data
1447:
1448: $data is an array ref containing elements that are either
1449: - scalars that are other elements of the history hash to pass to $func
1450: - ref to data to be passed untouched to $func
1451:
1.221 raeburn 1452: $questiontype is the questiontype (currently only passed in if
1453: randomizebytry.
1454:
1.177 albertel 1455: =cut
1456:
1.162 albertel 1457: sub setup_prior_tries_hash {
1.221 raeburn 1458: my ($func,$data,$questiontype) = @_;
1.162 albertel 1459: my $part = $Apache::inputtags::part;
1.221 raeburn 1460: my $id = $Apache::inputtags::response[-1];
1.162 albertel 1461: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1.221 raeburn 1462: my $partprefix = "$i:resource.$part";
1463: my $sub_key = "$partprefix.$id.submission";
1.162 albertel 1464: next if (!exists($Apache::lonhomework::history{$sub_key}));
1.221 raeburn 1465: my $type_key = "$partprefix.type";
1466: my $type = $Apache::lonhomework::history{$type_key};
1.162 albertel 1467: my @other_data;
1.221 raeburn 1468: if (ref($data) eq 'ARRAY') {
1469: foreach my $datum (@{ $data }) {
1470: if (ref($datum)) {
1471: push(@other_data,$datum);
1472: } else {
1473: my $info_key = "$i:resource.$part.$id.$datum";
1474: push(@other_data,$Apache::lonhomework::history{$info_key});
1475: }
1.162 albertel 1476: }
1.221 raeburn 1477: }
1478: if ($questiontype eq 'randomizetry') {
1479: my $order_key = "$partprefix.$id.foilorder";
1480: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key});
1481: if (@whichopts > 0) {
1482: shift(@other_data);
1483: unshift(@other_data,\@whichopts);
1484: }
1485: }
1.162 albertel 1486: my $output =
1487: &$func('grade',
1488: $Apache::lonhomework::history{$sub_key},
1489: \@other_data);
1490: if (defined($output)) {
1491: $Apache::inputtags::submission_display{$sub_key} = $output;
1492: }
1493: }
1494: }
1495:
1.1 albertel 1496: 1;
1497: __END__
1.38 albertel 1498:
1.208 jms 1499: =pod
1500:
1.209 www 1501: =cut
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