loncom/homework/response.pm - view

File: [LON-CAPA] / loncom / homework / response.pm
Revision 1.242: download - view: text, annotated - select for diffs
Sat Mar 7 23:05:57 2015 UTC (9 years, 2 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Previewing math expressions by a student (mathresponse and formularesponse).
  - Course/Community defaults includes a domain configuration to specify use
    of the LON-CAPA Math previewer (can be overridden in Course Settings --
    "Display of Resources" -- by CC).

1: # The LearningOnline Network with CAPA 2: # various response type definitons response definition 3: # 4: # $Id: response.pm,v 1.242 2015/03/07 23:05:57 raeburn Exp $ 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: # 28: 29: =pod 30: 31: =head1 NAME 32: 33: Apache::response.pm 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: 52: package Apache::response; 53: use strict; 54: use Apache::lonlocal; 55: use Apache::lonnet; 56: use Apache::inputtags(); 57: use Apache::lonmaxima(); 58: use Apache::lonr(); 59: use Apache::lontexconvert(); 60: 61: BEGIN { 62: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse')); 63: } 64: 65: sub start_response { 66: my ($parstack,$safeeval)=@_; 67: my $id = &Apache::lonxml::get_id($parstack,$safeeval); 68: if ($#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,$id); 75: @Apache::inputtags::inputlist=(); 76: if ($Apache::inputtags::part eq '' && 77: !$Apache::lonhomework::ignore_response_errors) { 78: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"')); 79: } 80: if ($Apache::inputtags::response_with_no_part && 81: $Apache::inputtags::part ne '0') { 82: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />'); 83: } 84: if ($Apache::inputtags::part eq '0') { 85: $Apache::inputtags::response_with_no_part=1; 86: } 87: return $id; 88: } 89: 90: sub end_response { 91: #pop @Apache::inputtags::response; 92: @Apache::inputtags::inputlist=(); 93: return ''; 94: } 95: 96: sub start_hintresponse { 97: my ($parstack,$safeeval)=@_; 98: my $id = &Apache::lonxml::get_id($parstack,$safeeval); 99: push (@Apache::inputtags::hint,$id); 100: push (@Apache::inputtags::hintlist,$id); 101: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]); 102: return $id; 103: } 104: 105: sub end_hintresponse { 106: pop @Apache::inputtags::hint; 107: if (defined($Apache::inputtags::paramstack[-1])) { 108: %Apache::inputtags::params= 109: @{ pop(@Apache::inputtags::paramstack) }; 110: } 111: return ''; 112: } 113: 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(); 122: push(@randomseeds,\@seed); 123: } 124: &Apache::response::setrandomnumber(@_); 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(@$seed); 135: } else { 136: &Apache::lonxml::error("Unable to restore random algorithm."); 137: } 138: } 139: 140: sub setrandomnumber { 141: my ($ignore_id2,$target,$rndseed) = @_; 142: if (!defined($rndseed)) { 143: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target); 144: } 145: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); } 146: &Apache::lonxml::debug("randseed $rndseed"); 147: # $rndseed=unpack("%32i",$rndseed); 148: my $rand_alg=&Apache::lonnet::get_rand_alg(); 149: my ($rndmod,$rndmod2); 150: 151: my ($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) { 159: $id1=&Apache::bridgetask::get_dim_id(); 160: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) { 161: $id2=$Apache::bridgetask::instance{$id1}[-1]; 162: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}}); 163: } else { 164: $shift_amt=0; 165: } 166: } 167: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt"); 168: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' || 169: $rand_alg eq '64bit2') { 170: $rndmod=(&Apache::lonnet::numval($id1) << 10); 171: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); } 172: } elsif ($rand_alg eq '64bit3') { 173: $rndmod=(&Apache::lonnet::numval2($id1) << 10); 174: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); } 175: } elsif ($rand_alg eq '64bit4') { 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) << $shift ); 180: } 181: } else { 182: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2"); 183: } 184: if ($rndseed =~/([,:])/) { 185: my $char=$1; 186: use integer; 187: my ($num1,$num2)=split(/\Q$char\E/,$rndseed); 188: $num1+=$rndmod; 189: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod); 190: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 191: $rndseed=$num1.$char.$num2; 192: } else { 193: $rndseed+=$rndmod; 194: if($Apache::lonnet::_64bit) { 195: use integer; 196: $rndseed=(($rndseed<<32)>>32); 197: } 198: } 199: &Apache::lonxml::debug("randseed $rndmod $rndseed"); 200: &Apache::lonnet::setup_random_from_rndseed($rndseed); 201: return ''; 202: } 203: 204: sub meta_parameter_write { 205: my ($name,$type,$default,$display)=@_; 206: my $partref=$Apache::inputtags::part; 207: my $result='<parameter part="'.$Apache::inputtags::part.'"'; 208: if (defined($Apache::inputtags::response[-1])) { 209: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 210: $partref.='_'.$Apache::inputtags::response[-1]; 211: } 212: $result.= ' name="'.$name.'"'. 213: ' type="'.$type.'"'. 214: (defined($default)?' default="'.$default.'"':''). 215: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'') 216: .'></parameter>' 217: ."\n"; 218: return $result; 219: } 220: 221: sub meta_package_write { 222: my $name=shift; 223: my $result = '<parameter part="'.$Apache::inputtags::part.'"'; 224: if(defined($Apache::inputtags::response[-1])) { 225: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 226: } 227: $result.=' package="'.$name.'"></parameter>'."\n"; 228: return $result; 229: } 230: 231: sub meta_stores_write { 232: my ($name,$type,$display)=@_; 233: my $partref=$Apache::inputtags::part; 234: my $result = '<stores part="'.$Apache::inputtags::part.'"'; 235: if (defined($Apache::inputtags::response[-1])) { 236: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 237: $partref.='_'.$Apache::inputtags::response[-1]; 238: } 239: $result.= ' name="'.$name.'"'. 240: ' type="'.$type.'"'. 241: ' display="'.$display.' [Part: '.$partref.']"'. 242: "></stores>\n"; 243: } 244: 245: =pod 246: 247: =item mandatory_part_meta() 248: 249: Autogenerate metadata for mandatory 250: input (from RAT or lonparmset) and 251: output (to lonspreadsheet) 252: of each part 253: 254: Note: responseid-specific data 'submission' and 'awarddetail' 255: not available to spreadsheet -> skip here 256: 257: =cut 258: 259: 260: sub mandatory_part_meta { 261: return &meta_package_write('part'). 262: &meta_stores_write('solved','string','Problem Status'). 263: &meta_stores_write('tries','int_zeropos','Number of Attempts'). 264: &meta_stores_write('awarded','float','Partial Credit Factor'); 265: } 266: 267: sub meta_part_order { 268: if (@Apache::inputtags::partlist) { 269: my @parts=@Apache::inputtags::partlist; 270: shift(@parts); 271: return '<partorder>'.join(',',@parts).'</partorder>'."\n"; 272: } else { 273: return '<partorder>0</partorder>'."\n"; 274: } 275: } 276: 277: sub meta_response_order { 278: if (@Apache::inputtags::responselist) { 279: return '<responseorder>'.join(',',@Apache::inputtags::responselist). 280: '</responseorder>'."\n"; 281: } 282: } 283: 284: sub check_for_previous { 285: my ($curresponse,$partid,$id,$last,$type) = @_; 286: my %previous; 287: $previous{'used'} = 0; 288: my $questiontype = $Apache::lonhomework::type; 289: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'}; 290: foreach my $key (sort(keys(%Apache::lonhomework::history))) { 291: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) { 292: if ( $last && $key =~ /^(\d+):/ ) { 293: next if ($1 >= $last); 294: } 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+):/ ) { 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"})); 304: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"}; 305: $previous{'last'}='0'; 306: push(@{ $previous{'version'} },$history); 307: } else { 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"})); 311: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"}; 312: $previous{'last'}='1'; 313: } 314: $previous{'used'} = 1; 315: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; } 316: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; } 317: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:"); 318: } elsif ($type eq 'ci') { 319: if (lc($pastresponse) eq lc($curresponse)) { 320: if ($key =~ /^(\d+):/) { 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); 325: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"}; 326: $previous{'usedci'} = 1; 327: } 328: } 329: } 330: } 331: } 332: &Apache::lonhomework::showhash(%previous); 333: return %previous; 334: } 335: 336: sub handle_previous { 337: my ($previous,$ad)=@_; 338: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) { 339: if ($$previous{'last'}) { 340: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST'); 341: push(@Apache::inputtags::previous_version,$$previous{'version'}); 342: } elsif (($Apache::lonhomework::type ne 'survey') && 343: ($Apache::lonhomework::type ne 'surveycred') && 344: ($Apache::lonhomework::type ne 'anonsurvey') && 345: ($Apache::lonhomework::type ne 'anonsurveycred')) { 346: push(@Apache::inputtags::previous,'PREVIOUSLY_USED'); 347: push(@Apache::inputtags::previous_version,$$previous{'version'}); 348: } 349: } 350: } 351: 352: sub view_or_modify { 353: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); 354: my $myself=0; 355: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) { 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 ''; 364: } 365: 366: sub start_dataresponse { 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; 379: } 380: 381: sub end_dataresponse { 382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 383: my $result; 384: if ( $target eq 'web' ) { 385: } elsif ($target eq 'grade' ) { 386: if ( defined $env{'form.submitted'}) { 387: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser(); 388: my $allowed=&Apache::lonnet::allowed('mgr',$courseid); 389: if ($allowed) { 390: &Apache::response::setup_params('dataresponse',$safeeval); 391: my $partid = $Apache::inputtags::part; 392: my $id = $Apache::inputtags::response['-1']; 393: my $response = $env{'form.HWVAL_'.$id}; 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 { 401: $result=&mt('Not Permitted to change values'); 402: } 403: } 404: } 405: &Apache::response::end_response; 406: return $result; 407: } 408: 409: sub start_customresponse { 410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 411: my $id = &Apache::response::start_response($parstack,$safeeval); 412: push(@Apache::lonxml::namespace,'customresponse'); 413: my $result; 414: @Apache::response::custom_answer=(); 415: @Apache::response::custom_answer_type=(); 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); 421: $Apache::inputtags::answertxt{$id}=[$answer]; 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:', 426: 'answerdisplay',$token,'50'); 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') { 438: $result .= &Apache::response::meta_package_write('customresponse'); 439: } 440: return $result; 441: } 442: 443: sub end_customresponse { 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(); 450: if ($Apache::lonhomework::type eq 'exam' || 451: &Apache::response::submitted('scantron')) { 452: &Apache::response::scored_response($part,$id); 453: } elsif ( $response =~ /[^\s]/ && 454: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') { 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; 463: ${$safeeval->varglob('LONCAPA::customresponse_submission')}= 464: $response; 465: 466: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval); 467: if (!&Apache::inputtags::valid_award($award)) { 468: $error = $award; 469: $award = 'ERROR'; 470: } 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: } 483: &Apache::response::handle_previous(\%previous,$award); 484: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 485: $award; 486: if ($award eq 'ASSIGNED_SCORE') { 487: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score; 488: } 489: if ($error) { 490: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}= 491: $error; 492: } 493: } 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: } 504: if ($target eq 'web') { 505: &setup_prior_tries_hash(\&format_prior_response_custom); 506: } 507: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 508: $target eq 'tex' || $target eq 'analyze') { 509: my $repetition = &repetition(); 510: &Apache::lonxml::increment_counter($repetition,"$part.$id"); 511: if ($target eq 'analyze') { 512: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse'; 513: &Apache::lonhomework::set_bubble_lines(); 514: } 515: } 516: pop(@Apache::lonxml::namespace); 517: pop(@Apache::response::custom_answer); 518: pop(@Apache::response::custom_answer_type); 519: &Apache::lonxml::deregister('Apache::response',('answer')); 520: &Apache::response::end_response(); 521: return $result; 522: } 523: 524: sub format_prior_response_custom { 525: my ($mode,$answer) =@_; 526: if (ref($answer) eq 'ARRAY') { 527: $answer = '('.join(', ', @{ $answer }).')'; 528: } 529: return '<span class="LC_prior_custom">'. 530: &HTML::Entities::encode($answer,'"<>&').'</span>'; 531: } 532: 533: sub start_mathresponse { 534: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 535: my $id = &Apache::response::start_response($parstack,$safeeval); 536: push(@Apache::lonxml::namespace,'mathresponse'); 537: my $result; 538: @Apache::response::custom_answer=(); 539: @Apache::response::custom_answer_type=(); 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); 545: $Apache::inputtags::answertxt{$id}=[$answer]; 546: } 547: 548: } elsif ($target eq 'edit') { 549: $result.=&Apache::edit::tag_start($target,$token); 550: $result.=&Apache::edit::text_arg('String to display for answer:', 551: 'answerdisplay',$token,'50'); 552: $result.=&Apache::edit::select_arg('Algebra System:', 553: 'cas', 554: ['maxima','R'], 555: $token); 556: $result.=&Apache::edit::text_arg('Argument Array:', 557: 'args',$token). 558: &Apache::loncommon::help_open_topic('Maxima_Argument_Array'); 559: $result.=&Apache::edit::text_arg('Libraries:', 560: 'libraries',$token). 561: &Apache::loncommon::help_open_topic('Maxima_Libraries'); 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, 566: $safeeval,'answerdisplay','cas','args','libraries'); 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'); 574: } 575: return $result; 576: } 577: 578: sub edit_mathresponse_button { 579: my ($partid,$id)=@_; 580: my $field = 'HWVAL_'.$partid.'_'.$id; 581: my $eqneditor = 'lcmath'; 582: if ($env{'browser.type'} eq 'safari') { 583: if ($env{'browser.os'} eq 'mac') { 584: my ($prefix,$version) = ($env{'browser.version'} =~ /^(\d*)(\d{3})\./); 585: if ($env{'browser.mobile'}) { 586: if (($version < 531) || (($prefix eq '') && ($version < 533))) { 587: $eqneditor = ''; 588: } 589: } elsif ($version < 522) { 590: $eqneditor = 'dragmath'; 591: } 592: } 593: } elsif ($env{'browser.type'} eq 'explorer') { 594: if ($env{'browser.version'} < 9) { 595: $eqneditor = 'dragmath'; 596: } 597: } elsif ($env{'browser.type'} eq 'mozilla') { 598: if ($env{'browser.version'} < 4) { 599: $eqneditor = 'dragmath'; 600: } else { 601: if ($env{'browser.info'} =~ /^firefox\-([\d\.]+)/) { 602: my $firefox = $1; 603: if ($firefox < 4) { 604: $eqneditor = 'dragmath'; 605: } 606: } 607: } 608: } 609: if ($eqneditor eq 'lcmath') { 610: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) { 611: if (exists($env{'course.'.$env{'request.course.id'}.'.uselcmath'})) { 612: if ($env{'course.'.$env{'request.course.id'}.'.uselcmath'} eq '0') { 613: $eqneditor = 'dragmath'; 614: } 615: } else { 616: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'}); 617: if ($domdefs{'uselcmath'} eq '0') { 618: $eqneditor = 'dragmath'; 619: } 620: } 621: } else { 622: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'}); 623: if ($domdefs{'uselcmath'} eq '0') { 624: $eqneditor = 'dragmath'; 625: } 626: } 627: } 628: if ($eqneditor eq 'dragmath') { 629: # DragMath applet 630: my $button=&mt('Edit Answer'); 631: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor'); 632: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'}; 633: return(<<ENDFORMULABUTTON); 634: <script type="text/javascript" language="JavaScript"> 635: function LC_mathedit_${field} (LCtextline) { 636: thenumber = LCtextline; 637: var thedata = ''; 638: if (document.getElementById(LCtextline)) { 639: thedata = document.getElementById(LCtextline).value; 640: } 641: newwin = window.open("/adm/dragmath/MaximaPopup.html","","width=565,height=400,resizable"); 642: } 643: </script> 644: <a href="javascript:LC_mathedit_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a> 645: ENDFORMULABUTTON 646: } elsif ($eqneditor eq 'lcmath') { 647: # LON-CAPA math equation editor 648: my $mathjaxjs; 649: unless (lc(&Apache::lontexconvert::tex_engine()) eq 'mathjax') { 650: $mathjaxjs = <<"MATHJAX_SCRIPT"; 651: var mathjaxscript = document.createElement("script"); 652: mathjaxscript.type = "text/javascript"; 653: mathjaxscript.src = "/adm/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML"; 654: document.body.appendChild(mathjaxscript); 655: MATHJAX_SCRIPT 656: } 657: return(<<EQ_EDITOR_SCRIPT); 658: <script type="text/javascript"> 659: var LCmathField = document.getElementById('${field}'); 660: LCmathField.className += ' math'; // note the space 661: LCmathField.setAttribute('data-implicit_operators', 'true'); 662: var LCMATH_started; 663: if (typeof LCMATH_started === 'undefined') { 664: $mathjaxjs 665: LCMATH_started = true; 666: var script = document.createElement("script"); 667: script.type = "text/javascript"; 668: script.src = "/adm/LC_math_editor/LC_math_editor.min.js"; 669: document.body.appendChild(script); 670: window.addEventListener('load', function(e) { 671: LCMATH.initEditors(); 672: }, false); 673: } 674: </script> 675: EQ_EDITOR_SCRIPT 676: } 677: } 678: 679: sub end_mathresponse { 680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 681: my $result; 682: my $part=$Apache::inputtags::part; 683: my $id=$Apache::inputtags::response[-1]; 684: if ( $target eq 'grade' && &Apache::response::submitted() ) { 685: my $response = &Apache::response::getresponse(); 686: if ( $response =~ /[^\s]/ ) { 687: if (!$Apache::lonxml::default_homework_loaded) { 688: &Apache::lonxml::default_homework_load($safeeval); 689: } 690: my %previous = &Apache::response::check_for_previous($response, 691: $part,$id); 692: $Apache::lonhomework::results{"resource.$part.$id.submission"}= 693: $response; 694: my $error; 695: my $award; 696: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval); 697: if ($cas eq 'maxima') { 698: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; 699: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args, 700: &Apache::lonxml::get_param('libraries',$parstack,$safeeval)); 701: } 702: if ($cas eq 'R') { 703: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; 704: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args, 705: &Apache::lonxml::get_param('libraries',$parstack,$safeeval)); 706: } 707: 708: if (!&Apache::inputtags::valid_award($award)) { 709: $error = $award; 710: $award = 'ERROR'; 711: } 712: if (($award eq 'INCORRECT' || $award eq 'APPROX_ANS' || 713: $award eq 'EXACT_ANS')) { 714: if ($Apache::lonhomework::type eq 'survey') { 715: $award='SUBMITTED'; 716: } elsif ($Apache::lonhomework::type eq 'surveycred') { 717: $award='SUBMITTED_CREDIT'; 718: } elsif ($Apache::lonhomework::type eq 'anonsurvey') { 719: $award='ANONYMOUS'; 720: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') { 721: $award='ANONYMOUS_CREDIT'; 722: } 723: } 724: &Apache::response::handle_previous(\%previous,$award); 725: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 726: $award; 727: if ($error) { 728: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}= 729: $error; 730: } 731: } 732: } 733: if ($target eq 'web') { 734: &setup_prior_tries_hash(\&format_prior_response_math); 735: my $partid = $Apache::inputtags::part; 736: my $id = $Apache::inputtags::response[-1]; 737: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER') 738: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) { 739: $result.=&edit_mathresponse_button($partid,$id); 740: } 741: } 742: 743: pop(@Apache::lonxml::namespace); 744: pop(@Apache::response::custom_answer); 745: pop(@Apache::response::custom_answer_type); 746: &Apache::lonxml::deregister('Apache::response',('answer')); 747: &Apache::response::end_response(); 748: return $result; 749: } 750: 751: sub format_prior_response_math { 752: my ($mode,$answer) =@_; 753: return '<span class="LC_prior_math">'. 754: &HTML::Entities::encode($answer,'"<>&').'</span>'; 755: } 756: 757: sub implicit_multiplication { 758: my ($expression)=@_; 759: # Escape scientific notation, so 3e8 does not become 3*e*8 760: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8 761: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&$$2$/gsi; 762: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8 763: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&$$2$/gsi; 764: # Fill in multiplication signs 765: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4 766: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs; 767: # )( -> )*(; ) ( -> )*( 768: $expression=~s/\)\s*$/$\*$/gs; 769: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A 770: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs; 771: # a ( -> a*( 772: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs; 773: # )a -> )*a; )3 -> )*3; ) 3 -> )*3 774: $expression=~s/$\s*([A-Za-z0-9])/\)\*$1/gs; 775: # 3&8 -> 3e8; 3&-4 -> 3e-4 776: $expression=~s/(\d+)\&$([\+\-]*\d+)$/$1e$2/gs; 777: return $expression; 778: } 779: 780: sub start_answer { 781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 782: my $result; 783: push(@Apache::response::custom_answer, 784: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser)); 785: push(@Apache::response::custom_answer_type, 786: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval))); 787: $Apache::response::custom_answer_type[-1] =~ s/\s+//g; 788: if ($target eq "edit" ) { 789: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm'); 790: $result.=&Apache::edit::editfield($token->[1], 791: $Apache::response::custom_answer[-1], 792: '',80,4); 793: } elsif ( $target eq "modified" ) { 794: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser); 795: } 796: return $result; 797: } 798: 799: sub end_answer { 800: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 801: if ($target eq 'edit' ) { 802: return &Apache::edit::end_table(); 803: } 804: } 805: 806: sub decide_package { 807: my ($tagstack)=@_; 808: my $package; 809: if ($$tagstack[-1] eq 'parameter') { 810: $package='part'; 811: } else { 812: my $i=-1; 813: while (defined($$tagstack[$i])) { 814: if ($$tagstack[$i] =~ /(response|hint)$/) { 815: $package=$$tagstack[$i]; 816: last; 817: } 818: $i--; 819: } 820: } 821: return $package; 822: } 823: 824: sub start_responseparam { 825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 826: my $result=''; 827: if ($target eq 'meta') { 828: $result = &meta_parameter_write($token->[2]->{'name'}, 829: $token->[2]->{'type'}, 830: $token->[2]->{'default'}, 831: $token->[2]->{'description'}); 832: } elsif ($target eq 'edit') { 833: $result.=&Apache::edit::tag_start($target,$token); 834: my $optionlist; 835: my $package=&decide_package($tagstack); 836: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) { 837: if ($key =~ /^\Q$package\E&(.*)&display$/) { 838: $optionlist.='<option value="'.$1.'">'. 839: $Apache::lonnet::packagetab{$key}.'</option>'; 840: } 841: } 842: if (defined($optionlist)) { 843: $result.=&mt('Use template:').' <select name="'. 844: &Apache::edit::html_element_name('parameter_package').'">'. 845: '<option value=""></option>'.$optionlist.'</select><br />'; 846: } 847: $result.=&Apache::edit::text_arg('Name:','name',$token). 848: &Apache::edit::text_arg('Type:','type',$token). 849: &Apache::edit::text_arg('Description:','description',$token). 850: &Apache::edit::text_arg('Default:','default',$token). 851: "</td></tr>"; 852: $result.=&Apache::edit::end_table; 853: } elsif ($target eq 'modified') { 854: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 855: $safeeval,'name','type', 856: 'description','default'); 857: my $element=&Apache::edit::html_element_name('parameter_package'); 858: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') { 859: my $name=$env{"form.$element"}; 860: my $tag=&decide_package($tagstack); 861: $token->[2]->{'name'}=$name; 862: $token->[2]->{'type'}= 863: $Apache::lonnet::packagetab{"$tag&$name&type"}; 864: $token->[2]->{'description'}= 865: $Apache::lonnet::packagetab{"$tag&$name&display"}; 866: $token->[2]->{'default'}= 867: $Apache::lonnet::packagetab{"$tag&$name&default"}; 868: $token->[3] = ['name','type','description','default']; 869: $constructtag=1; 870: } 871: if ($constructtag) { 872: $result = &Apache::edit::rebuild_tag($token); 873: } 874: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' || 875: $target eq 'tex' || $target eq 'analyze' ) { 876: if ($env{'request.state'} eq 'construct') { 877: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval); 878: my $default=&Apache::lonxml::get_param('default',$parstack, 879: $safeeval); 880: if ($name) {$Apache::inputtags::params{$name}=$default;} 881: } 882: } 883: return $result; 884: } 885: 886: sub end_responseparam { 887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 888: if ($target eq 'edit') { return ('','no'); } 889: return ''; 890: } 891: 892: sub start_parameter { 893: return &start_responseparam(@_); 894: } 895: 896: sub end_parameter { 897: return &end_responseparam(@_); 898: } 899: 900: sub reset_params { 901: %Apache::inputtags::params=(); 902: } 903: 904: sub setup_params { 905: my ($tag,$safeeval) = @_; 906: 907: if ($env{'request.state'} eq 'construct') { return; } 908: my %paramlist=(); 909: foreach my $key (keys(%Apache::lonnet::packagetab)) { 910: if ($key =~ /^\Q$tag\E/) { 911: my ($package,$name) = split(/&/,$key); 912: $paramlist{$name}=1; 913: } 914: } 915: foreach my $key (keys(%paramlist)) { 916: my $entry= 'resource.'.$Apache::inputtags::part; 917: if (defined($Apache::inputtags::response[-1])) { 918: $entry.='_'.$Apache::inputtags::response[-1]; 919: } 920: $entry.='.'.$key; 921: &Apache::lonxml::debug("looking for $entry"); 922: my $value = &Apache::lonnet::EXT("$entry"); 923: &Apache::lonxml::debug("$key has value :$value:"); 924: if ($value eq 'con_lost' || $value =~ /^error:/) { 925: &Apache::lonxml::debug("using nothing"); 926: $Apache::inputtags::params{$key}=''; 927: } else { 928: my $string="{return qq\0".$value."\0}"; 929: my $newvalue=&Apache::run::run($string,$safeeval,1); 930: if (defined($newvalue)) { $value=$newvalue; } 931: $Apache::inputtags::params{$key}=$value; 932: } 933: } 934: } 935: 936: { 937: my @answer_bits; 938: my $need_row_start; 939: 940: sub answer_header { 941: my ($type,$increment,$rows) = @_; 942: my $result; 943: if ($env{'form.answer_output_mode'} eq 'tex') { 944: undef(@answer_bits); 945: my $bit; 946: if ($Apache::lonhomework::type eq 'exam') { 947: $bit = ($Apache::lonxml::counter+$increment).') '; 948: } else { 949: $bit .= ' '.&mt('Answer for Part: [_1]', 950: '\verb|'.$Apache::inputtags::part.'|').' '; 951: } 952: push(@answer_bits,$bit); 953: } else { 954: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>'; 955: $result = '<table border="1"><tr>'; 956: if ($Apache::lonhomework::type eq 'exam') { 957: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>'; 958: } else { 959: $result .= $td.&mt('Answer for Part: [_1]', 960: $Apache::inputtags::part).'</td>'; 961: } 962: $result .= "\n"; 963: $need_row_start = 0; 964: } 965: return $result; 966: } 967: 968: sub next_answer { 969: my ($type) = @_; 970: my $result; 971: if ($env{'form.answer_output_mode'} eq 'tex') { 972: # FIXME ... need to do something with tex mode 973: } else { 974: $result .= "</tr>"; 975: $need_row_start = 1; 976: } 977: return $result; 978: } 979: 980: sub answer_part { 981: my ($type,$answer,$args) = @_; 982: my $result; 983: if ($env{'form.answer_output_mode'} eq 'tex') { 984: if (!$args->{'no_verbatim'}) { 985: my $to_use='|'; 986: foreach my $value (32..126) { 987: my $char=pack('c',$value); 988: if ($answer !~ /\Q$char\E/) { 989: $to_use=$char; 990: last; 991: } 992: } 993: my $fullanswer=$answer; 994: $answer=''; 995: foreach my $element (split(/[\;]/,$fullanswer)) { 996: if ($element ne '') { 997: $answer.= '\verb'.$to_use.$element.$to_use.' \newline'; 998: } 999: } 1000: } 1001: if ($answer ne '') { 1002: push(@answer_bits,$answer); 1003: } 1004: } else { 1005: if ($need_row_start) { 1006: $result .= '<tr>'; 1007: $need_row_start = 0; 1008: } 1009: $result .= '<td>'.$answer.'</td>'; 1010: } 1011: return $result; 1012: } 1013: 1014: sub answer_footer { 1015: my ($type) = @_; 1016: my $result; 1017: if ($env{'form.answer_output_mode'} eq 'tex') { 1018: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline '; 1019: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}'; 1020: for (my $i=1;$i<=$#answer_bits;$i++) { 1021: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}'; 1022: } 1023: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm '; 1024: } else { 1025: if (!$need_row_start) { 1026: $result .= '</tr>'; 1027: } 1028: $result .= '</table>'; 1029: } 1030: return $result; 1031: } 1032: 1033: } 1034: 1035: sub showallfoils { 1036: if (defined($env{'form.showallfoils'})) { 1037: my ($symb)=&Apache::lonnet::whichuser(); 1038: if (($env{'request.state'} eq 'construct') || 1039: ($env{'user.adv'} && $symb eq '') || 1040: ($Apache::lonhomework::viewgrades) ) { 1041: return 1; 1042: } 1043: } 1044: if ($Apache::lonhomework::type eq 'survey') { return 1; } 1045: if ($Apache::lonhomework::type eq 'surveycred') { return 1; } 1046: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; } 1047: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; } 1048: 1049: return 0; 1050: } 1051: 1052: =pod 1053: 1054: =item &getresponse(); 1055: 1056: Retreives the current submitted response, helps out in the case of 1057: scantron mode. 1058: 1059: Returns either the exact text of the submission, or a bubbled response 1060: converted to something usable. 1061: 1062: Optional Arguments: 1063: $offset - (defaults to 1) if a problem has more than one bubble 1064: response, pass in the number of the bubble wanted, (the 1065: first bubble associated with a problem has an offset of 1, 1066: the second bubble is 2 1067: 1068: $resulttype - undef -> a number between 0 and 25 1069: 'A is 1' -> a number between 1 and 26 1070: 'letter' -> a letter between 'A' and 'Z' 1071: $lines - undef problem only needs a single line of bubbles. 1072: nonzero Problem wants the first nonempty response in 1073: $lines lines of bubbles. 1074: $bubbles_per_line - Must be provided if lines is defined.. number of 1075: bubbles on a line. 1076: 1077: =cut 1078: 1079: sub getresponse { 1080: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_; 1081: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1']; 1082: my $response; 1083: if (!defined($offset)) { 1084: $offset=1; 1085: } else { 1086: $formparm.=":$offset"; 1087: } 1088: if (!defined($lines)) { 1089: $lines = 1; 1090: } 1091: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7, 1092: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14, 1093: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21, 1094: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25); 1095: if ($env{'form.submitted'} eq 'scantron') { 1096: my $part = $Apache::inputtags::part; 1097: my $id = $Apache::inputtags::response[-1]; 1098: 1099: my $line; 1100: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id}; 1101: if (!$startline) { 1102: $startline = $Apache::lonxml::counter; 1103: } 1104: for ($line = 0; $line < $lines; $line++) { 1105: my $theline = $startline+$offset-1+$line; 1106: $response = $env{"scantron.$theline.answer"}; 1107: if ((defined($response)) && ($response ne "") && ($response ne " ")) { 1108: last; 1109: } 1110: 1111: } 1112: 1113: # save bubbled letter for later 1114: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.= 1115: $response; 1116: if ($resulttype ne 'letter') { 1117: $response = $let_to_num{$response}; 1118: if ($resulttype eq 'A is 1') { 1119: if ($response ne "") { 1120: $response = $response+1; 1121: } 1122: } 1123: if ($response ne "") { 1124: $response += $line * $bubbles_per_line; 1125: } 1126: } else { 1127: if ($response ne "") { 1128: my $raw = $response; 1129: $response = chr(ord($response) + $line * $bubbles_per_line); 1130: } 1131: } 1132: 1133: } else { 1134: $response = $env{$formparm}; 1135: } 1136: # 1137: # If we have a nonempty answer, correct the numeric value 1138: # of the answer for the line on which it was found. 1139: # 1140: 1141: return $response; 1142: } 1143: 1144: =pod 1145: 1146: =item &repetition(); 1147: 1148: In scalar context: 1149: 1150: returns: the number of lines that are required to encode the weight. 1151: (Default is for 10 bubbles per bubblesheet item; other (integer) 1152: values can be specified by using a custom Bubblesheet format file 1153: with an eighteenth entry (BubblesPerRow) set to the integer 1154: appropriate for the bubblesheets which will be used to assign weights. 1155: 1156: In array context: 1157: 1158: returns: number of lines required to encode weight, and bubbles/line. 1159: 1160: =cut 1161: 1162: sub repetition { 1163: my $id = $Apache::inputtags::part; 1164: my $weight = &Apache::lonnet::EXT("resource.$id.weight"); 1165: if (!defined($weight) || ($weight eq '')) { $weight=1; } 1166: my $bubbles_per_row; 1167: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) && 1168: ($env{'form.bubbles_per_row'} > 0)) { 1169: $bubbles_per_row = $env{'form.bubbles_per_row'}; 1170: } else { 1171: $bubbles_per_row = 10; 1172: } 1173: my $denominator = $bubbles_per_row; 1174: if (($env{'form.scantron_lastbubblepoints'} == 0) && 1175: ($bubbles_per_row > 1)) { 1176: $denominator = $bubbles_per_row - 1; 1177: } 1178: my $repetition = int($weight/$denominator); 1179: if ($weight % $denominator != 0) { $repetition++; } 1180: if (wantarray) { 1181: return ($repetition,$bubbles_per_row); 1182: } 1183: return $repetition; 1184: 1185: } 1186: 1187: =pod 1188: 1189: =item &scored_response(); 1190: 1191: Sets the results hash elements 1192: 1193: resource.$part_id.$response_id.awarded - to the floating point 1194: number between 0 and 1 that was awarded on the bubbled input 1195: 1196: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE' 1197: 1198: Returns 1199: 1200: the number of bubble sheet lines that were used (and likely need to 1201: be passed to &Apache::lonxml::increment_counter() 1202: 1203: Arguments 1204: 1205: $part_id - id of the part to grade 1206: $response_id - id of the response to grade 1207: 1208: 1209: =cut 1210: 1211: sub scored_response { 1212: my ($part,$id)=@_; 1213: my $repetition=&repetition(); 1214: my $bubbles_per_row; 1215: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) && 1216: ($env{'form.bubbles_per_row'} > 0)) { 1217: $bubbles_per_row = $env{'form.bubbles_per_row'}; 1218: } else { 1219: $bubbles_per_row = 10; 1220: } 1221: my $score=0; 1222: for (my $i=0;$i<$repetition;$i++) { 1223: # A is 1, B is 2, etc. 1224: my $increase=&Apache::response::getresponse($i+1); 1225: unless (($increase == $bubbles_per_row-1) && 1226: ($env{'form.scantron_lastbubblepoints'} == 0)) { 1227: # (get response return 0-9 and then we add 1) 1228: if ($increase ne '') { 1229: $score+=$increase+1; 1230: } 1231: } 1232: } 1233: my $weight = &Apache::lonnet::EXT("resource.$part.weight"); 1234: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; } 1235: my $pcr=$score/$weight; 1236: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr; 1237: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 1238: 'ASSIGNED_SCORE'; 1239: return $repetition; 1240: } 1241: 1242: sub whichorder { 1243: my ($max,$randomize,$showall,$hash,$rndseed)=@_; 1244: #&Apache::lonxml::debug("man $max randomize $randomize"); 1245: my @names; 1246: if (ref($hash->{'names'}) eq 'ARRAY') { 1247: @names = @{$hash->{'names'}}; 1248: } 1249: return if (!@names); 1250: my @whichopt =(); 1251: my (%top,@toplist,%bottom,@bottomlist); 1252: if (!($showall || ($randomize eq 'no'))) { 1253: my $current=0; 1254: foreach my $name (@names) { 1255: $current++; 1256: if ($$hash{"$name.location"} eq 'top') { 1257: $top{$name}=$current; 1258: } elsif ($$hash{"$name.location"} eq 'bottom') { 1259: $bottom{$name}=$current; 1260: } 1261: } 1262: } 1263: my $topcount=0; 1264: my $bottomcount=0; 1265: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall) 1266: && ($#names > -1)) { 1267: #&Apache::lonxml::debug("Have $#whichopt max is $max"); 1268: my $aopt; 1269: if ($showall || ($randomize eq 'no')) { 1270: $aopt=0; 1271: } else { 1272: $aopt=int(&Math::Random::random_uniform() * ($#names+1)); 1273: } 1274: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt"); 1275: $aopt=splice(@names,$aopt,1); 1276: #&Apache::lonxml::debug("Picked $aopt"); 1277: if ($top{$aopt}) { 1278: $toplist[$top{$aopt}]=$aopt; 1279: $topcount++; 1280: } elsif ($bottom{$aopt}) { 1281: $bottomlist[$bottom{$aopt}]=$aopt; 1282: $bottomcount++; 1283: } else { 1284: push (@whichopt,$aopt); 1285: } 1286: } 1287: for (my $i=0;$i<=$#toplist;$i++) { 1288: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) } 1289: } 1290: for (my $i=0;$i<=$#bottomlist;$i++) { 1291: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) } 1292: } 1293: return @whichopt; 1294: } 1295: 1296: sub show_answer { 1297: my $part = $Apache::inputtags::part; 1298: my $award = $Apache::lonhomework::history{"resource.$part.solved"}; 1299: my $status = $Apache::inputtags::status[-1]; 1300: my $canshow = 0; 1301: if ($award =~ /^correct/) { 1302: if (($Apache::lonhomework::history{"resource.$part.awarded"} >= 1) || 1303: (&Apache::lonnet::EXT("resource.$part.retrypartial") !~/^1|on|yes$/)) { 1304: $canshow = 1; 1305: } 1306: } 1307: return (($canshow && &Apache::lonhomework::show_problem_status()) 1308: || $status eq "SHOW_ANSWER"); 1309: } 1310: 1311: sub analyze_store_foilgroup { 1312: my ($shown,$attrs)=@_; 1313: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1314: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) { 1315: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; } 1316: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name); 1317: foreach my $attr (@$attrs) { 1318: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} = 1319: $Apache::response::foilgroup{"$name.".$attr}; 1320: } 1321: } 1322: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown }); 1323: } 1324: 1325: sub check_if_computed { 1326: my ($token,$parstack,$safeeval,$name)=@_; 1327: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval); 1328: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) { 1329: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1330: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1; 1331: } 1332: } 1333: 1334: sub pick_foil_for_concept { 1335: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_; 1336: my @names; 1337: if (ref($Apache::response::conceptgroup{'names'}) eq 'ARRAY') { 1338: @names = @{ $Apache::response::conceptgroup{'names'} }; 1339: } 1340: return if (!@names); 1341: my $pick=int(&Math::Random::random_uniform() * ($#names+1)); 1342: my $name=$names[$pick]; 1343: push @{ $Apache::response::foilgroup{'names'} }, $name; 1344: foreach my $attr (@$attrs) { 1345: $Apache::response::foilgroup{"$name.".$attr} = 1346: $Apache::response::conceptgroup{"$name.".$attr}; 1347: } 1348: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval); 1349: $Apache::response::foilgroup{"$name.concept"} = $concept; 1350: &Apache::lonxml::debug("Selecting $name in $concept"); 1351: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1352: if ($target eq 'analyze') { 1353: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} }, 1354: $concept); 1355: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}= 1356: $Apache::response::conceptgroup{'names'}; 1357: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) { 1358: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} }, 1359: $name); 1360: foreach my $attr (@$attrs) { 1361: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}= 1362: $Apache::response::conceptgroup{"$name.$attr"}; 1363: } 1364: } 1365: } 1366: push(@{ $hinthash->{"$part_id.concepts"} },$concept); 1367: $hinthash->{"$part_id.concept.$concept"}= 1368: $Apache::response::conceptgroup{'names'}; 1369: 1370: } 1371: 1372: =pod 1373: 1374: =item get_response_param() 1375: 1376: Get a parameter associated with a problem. 1377: Parameters: 1378: $id - the id of the paramater, either a part id, 1379: or a partid and responspe id joined by _ 1380: $name - Name of the parameter to fetch 1381: $default - Default value for the paramter. 1382: 1383: =cut 1384: 1385: sub get_response_param { 1386: my ($id,$name,$default)=@_; 1387: my $parameter; 1388: if ($env{'request.state'} eq 'construct' && 1389: defined($Apache::inputtags::params{$name})) { 1390: $parameter=$Apache::inputtags::params{$name}; 1391: } else { 1392: $parameter=&Apache::lonnet::EXT("resource.$id.$name"); 1393: } 1394: if (!defined($parameter) || $parameter eq '') { 1395: $parameter = $default; 1396: } 1397: return $parameter; 1398: } 1399: 1400: sub submitted { 1401: my ($who)=@_; 1402: 1403: # when scatron grading any submission is a submission 1404: if ($env{'form.submitted'} eq 'scantron') { return 1; } 1405: # if the caller only cared if this was a scantron submission 1406: if ($who eq 'scantron') { return 0; } 1407: # if the Submit Answer button for this particular part was pressed 1408: my $partid=$Apache::inputtags::part; 1409: if ($env{'form.submitted'} eq "part_$partid") { 1410: return 1; 1411: } 1412: if ($env{'form.submitted'} eq "yes" 1413: && defined($env{'form.submit_'.$partid})) { 1414: return 1; 1415: } 1416: # Submit All button on a .page was pressed 1417: if (defined($env{'form.all_submit'})) { return 1; } 1418: # otherwise no submission occurred 1419: return 0; 1420: } 1421: 1422: sub add_to_gradingqueue { 1423: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); 1424: if ( $courseid eq '' 1425: || $symb eq '' 1426: || $env{'request.state'} eq 'construct' 1427: || $Apache::lonhomework::type ne 'problem') { 1428: return; 1429: } 1430: 1431: my %queue_info = ( 'type' => 'problem', 1432: 'time' => time); 1433: 1434: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) { 1435: $queue_info{'slot'}= 1436: $Apache::lonhomework::history{"resource.0.checkedin.slot"}; 1437: } 1438: 1439: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info); 1440: if ($result ne 'ok') { 1441: &Apache::lonxml::error("add_to_queue said $result"); 1442: } 1443: } 1444: 1445: =pod 1446: 1447: =item check_status() 1448: 1449: basically undef and 0 (both false) mean that they still have work to do 1450: and all true values mean that they can't do any more work 1451: 1452: a return of undef means it is unattempted 1453: a return of 0 means it is attmpted and wrong but still has tries 1454: a return of 1 means it is marked correct 1455: a return of 2 means they have exceed maximum number of tries 1456: a return of 3 means it after the answer date 1457: 1458: =cut 1459: 1460: sub check_status { 1461: my ($id)=@_; 1462: if (!defined($id)) { $id=$Apache::inputtags::part; } 1463: my $curtime=&Apache::lonnet::EXT('system.time'); 1464: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate"); 1465: my $duedate=&Apache::lonhomework::due_date($id); 1466: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate"); 1467: if ( $opendate && $curtime > $opendate && 1468: $duedate && $curtime > $duedate && 1469: $answerdate && $curtime > $answerdate) { 1470: return 3; 1471: } 1472: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved"); 1473: if ($status =~ /^correct/) { return 1; } 1474: if (!$status) { return undef; } 1475: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries"); 1476: if ($maxtries eq '') { $maxtries=2; } 1477: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries"); 1478: if ($curtries < $maxtries) { return 0; } 1479: return 2; 1480: } 1481: 1482: =pod 1483: 1484: =item setup_prior_tries_hash() 1485: 1486: Foreach each past .submission $func is called with 3 arguments 1487: - the mode to set things up for (currently always 'grade') 1488: - the stored .submission string 1489: - The expansion of $data 1490: 1491: $data is an array ref containing elements that are either 1492: - scalars that are other elements of the history hash to pass to $func 1493: - ref to data to be passed untouched to $func 1494: 1495: $questiontype is the questiontype (currently only passed in if 1496: randomizebytry. 1497: 1498: =cut 1499: 1500: sub setup_prior_tries_hash { 1501: my ($func,$data,$questiontype) = @_; 1502: my $part = $Apache::inputtags::part; 1503: my $id = $Apache::inputtags::response[-1]; 1504: foreach my $i (1..$Apache::lonhomework::history{'version'}) { 1505: my $partprefix = "$i:resource.$part"; 1506: my $sub_key = "$partprefix.$id.submission"; 1507: next if (!exists($Apache::lonhomework::history{$sub_key})); 1508: my $type_key = "$partprefix.type"; 1509: my $type = $Apache::lonhomework::history{$type_key}; 1510: my @other_data; 1511: if (ref($data) eq 'ARRAY') { 1512: foreach my $datum (@{ $data }) { 1513: if (ref($datum)) { 1514: push(@other_data,$datum); 1515: } else { 1516: my $info_key = "$i:resource.$part.$id.$datum"; 1517: push(@other_data,$Apache::lonhomework::history{$info_key}); 1518: } 1519: } 1520: } 1521: if ($questiontype eq 'randomizetry') { 1522: my $order_key = "$partprefix.$id.foilorder"; 1523: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key}); 1524: if (@whichopts > 0) { 1525: shift(@other_data); 1526: unshift(@other_data,\@whichopts); 1527: } 1528: } 1529: my $output = 1530: &$func('grade', 1531: $Apache::lonhomework::history{$sub_key}, 1532: \@other_data); 1533: if (defined($output)) { 1534: $Apache::inputtags::submission_display{$sub_key} = $output; 1535: } 1536: } 1537: } 1538: 1539: 1; 1540: __END__ 1541: 1542: =pod 1543: 1544: =cut