Annotation of loncom/homework/caparesponse/caparesponse.pm, revision 1.90

1.3       albertel    1: # The LearningOnline Network with CAPA
                      2: # caparesponse definition
1.47      albertel    3: #
1.90    ! albertel    4: # $Id: caparesponse.pm,v 1.89 2003/04/07 23:19:58 albertel Exp $
1.47      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: #
1.3       albertel   28: 
                     29: package Apache::caparesponse;
                     30: use strict;
1.4       albertel   31: use capa;
1.3       albertel   32: 
1.50      harris41   33: BEGIN {
1.89      albertel   34:     &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
1.3       albertel   35: }
                     36: 
1.89      albertel   37: sub start_numericalresponse {
                     38:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                     39:     my $id = &Apache::response::start_response($parstack,$safeeval);
                     40:     my $result;
                     41:     if ($target eq 'edit') {
                     42: 	$result.=&Apache::edit::tag_start($target,$token);
                     43: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                     44: 	if ($token->[1] eq 'numericalresponse') {
                     45: 	    $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
                     46: 		&Apache::loncommon::help_open_topic('Physical_Units');
                     47: 	    $result.=&Apache::edit::text_arg('Format:','format',$token,4).
                     48: 		&Apache::loncommon::help_open_topic('Numerical_Response_Format');
                     49: 	} elsif ($token->[1] eq 'stringresponse') {
                     50: 	    $result.=&Apache::edit::select_arg('Type:','type',
                     51: 			 [['cs','Case Sensitive'],['ci','Case Insensitive'],
                     52: 			  ['mc','Case Insensitive, Any Order']],$token);
                     53: 	} elsif ($token->[1] eq 'formularesponse') {
                     54: 	    $result.=&Apache::edit::text_arg('Sample Points:','samples',
                     55: 					     $token,40).
                     56: 	      &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
                     57: 	}
                     58: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                     59:     } elsif ($target eq 'modified') {
                     60: 	my $constructtag;
                     61: 	if ($token->[1] eq 'numericalresponse') {
                     62: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                     63: 						      $safeeval,'answer',
                     64: 						      'unit','format');
                     65: 	} elsif ($token->[1] eq 'stringresponse') {
                     66: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                     67: 						      $safeeval,'answer',
                     68: 						      'type');
                     69: 	} elsif ($token->[1] eq 'formularesponse') {
                     70: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                     71: 						      $safeeval,'answer',
                     72: 						      'samples');
                     73: 	}
                     74: 	if ($constructtag) {
                     75: 	    $result = &Apache::edit::rebuild_tag($token);
                     76: 	    $result.=&Apache::edit::handle_insert();
1.22      albertel   77: 	}
1.89      albertel   78:     } elsif ($target eq 'meta') {
                     79: 	$result=&Apache::response::meta_package_write('numericalresponse');
                     80:     } elsif ($target eq 'answer' || $target eq 'grade') {
                     81: 	&Apache::response::reset_params();
1.16      albertel   82:     }
1.89      albertel   83:     return $result;
1.21      albertel   84: }
                     85: 
1.89      albertel   86: sub end_numericalresponse {
                     87:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.90    ! albertel   88:     my $increment=1;
1.89      albertel   89:     my $result = '';
                     90:     if (!$Apache::lonxml::default_homework_loaded) {
                     91: 	&Apache::lonxml::default_homework_load($safeeval);
1.34      albertel   92:     }
1.90    ! albertel   93:     if ( $target eq 'grade' && defined $ENV{'form.submitted'}) {
        !            94: 	&Apache::response::setup_params($$tagstack[-1]);
        !            95: 	$safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
        !            96: 	my $partid = $Apache::inputtags::part;
        !            97: 	my $id = $Apache::inputtags::response['-1'];
        !            98: 	my $response = &Apache::response::getresponse();
        !            99: 	if ( $response =~ /[^\s]/) {
        !           100: 	    my $ad;
        !           101: 	    my %previous = &Apache::response::check_for_previous($response,$partid,$id);
        !           102: 	    $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
        !           103: 	    &Apache::lonxml::debug("submitted a $response<br>\n");
        !           104: 	    &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
        !           105: 
        !           106: 	    if ($ENV{'form.submitted'} eq 'scantron') {
        !           107: 		&Apache::response::setrandomnumber();
        !           108: 		#FIXME the 8 here is based off of number of powers need a parameter
        !           109: 		my $ind=&Math::Random::random_uniform_integer(1,0,8);
        !           110: 		if ($ind eq $response) { $ad='CORRECT'; } else { $ad='INCORRECT'; }
        !           111: 	    }
        !           112: 	    $response =~ s/\\/\\\\/g;
        !           113: 	    $response =~ s/\'/\\\'/g;
        !           114: 	    &Apache::lonxml::debug("current $response");
        !           115: 	    my $expression="&caparesponse_check_list('".$response."','".
        !           116: 		$$parstack[-1];
        !           117: 	    foreach my $key (keys(%Apache::inputtags::params)) {
        !           118: 		$expression.= ';my $'. #'
        !           119: 		    $key.'="'.$Apache::inputtags::params{$key}.'"';
        !           120: 	    }
        !           121: 	    if ($$tagstack[-1] eq 'formularesponse') {
        !           122: 		$expression.=';my $type="fml";';
        !           123: 	    } elsif ($$tagstack[-1] eq 'numericalresponse') {
        !           124: 		$expression.=';my $type="float";';
        !           125: 	    }
        !           126: 	    $expression.="');";
        !           127: 	    $result = &Apache::run::run($expression,$safeeval);
        !           128: 	    my ($awards) = split /:/ , $result;
        !           129: 	    ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
        !           130: 	    &Apache::lonxml::debug("$expression");
        !           131: 	    &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
        !           132: 	    &Apache::response::handle_previous(\%previous,$ad);
        !           133: 	    $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
        !           134: 	    $result='';
1.89      albertel  135: 	}
                    136:     } elsif ($target eq 'web' || $target eq 'tex') {
1.90    ! albertel  137: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
        !           138: 						     $safeeval);
1.89      albertel  139: 	my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
                    140: 	my $status = $Apache::inputtags::status['-1'];
                    141: 	if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
                    142: 	    my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
                    143: 							 $safeeval);
                    144: 	    my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
                    145: 						    $safeeval);
                    146: 
                    147: 	    if ($target eq 'web') {
                    148: 		$result="<br />The correct answer is ";
                    149: 	    } elsif ($target eq 'tex') {
                    150: 		#$result='\vskip 0 mm The correct answer is \\texttt{';
                    151: 	    }
                    152: 	    for (my $i=0; $i <= $#answers; $i++) {
                    153: 		my $answer=$answers[$i];
                    154: 		my $format;
                    155: 		if ($#formats > 0) {
                    156: 		    $format=$formats[$i];
                    157: 		} else {
                    158: 		    $format=$formats[0];
                    159: 		}
                    160: 		my $formatted;
                    161: 		if ((defined($format)) && ($format ne '')) {
                    162: 		    &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
                    163: 		    $formatted=sprintf('%.'.$format,$answer).',';
                    164: 		} else {
                    165: 		    &Apache::lonxml::debug("no format answer :$answer:");
                    166: 		    $formatted="$answer,";
                    167: 		}
                    168: 		
                    169: 		if ($target eq 'tex') {
                    170: 		    $formatted='';
                    171: 		    #$formatted=&Apache::lonxml::latex_special_symbols($formatted);
                    172: 		}
                    173: 		$result.=$formatted;
                    174: 	    }
                    175: 	    chop $result;
                    176: 	    if ($target eq 'web') {
                    177: 		$result.=" $unit.<br />";
                    178: 	    } elsif ($target eq 'tex') {
                    179: 		#$result.=&Apache::lonxml::latex_special_symbols($unit);
                    180: 		#$result.="}. \\vskip 0 mm ";
                    181: 	    }
                    182: 	}
                    183: 	if ($Apache::lonhomework::type eq 'exam') {
1.90    ! albertel  184: 	    my $number_of_bubbles = 8; #default values for number of bubbles
1.89      albertel  185: 	    my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
                    186: 							 $safeeval);
                    187: 	    my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
                    188: 						    $safeeval);
1.90    ! albertel  189: 	    my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
        !           190: 						      @answers);
1.89      albertel  191: 	    my @alphabet=('A'..'Z');
1.90    ! albertel  192: 	    my $id=$Apache::inputtags::response[-1];
1.89      albertel  193: 	    if ($target eq 'web') {
                    194: 		if ($$tagstack[-1] eq 'numericalresponse') {
                    195: 		    if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
                    196: 		    $result.= '<table border="1"><tr>';
1.90    ! albertel  197: 		    for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
        !           198: 			my $ans=&format_number($bubble_values[$ind],
        !           199: 					       $formats[0]);
        !           200: 			$result.='<td><input type="radio" name="HWVAL_'.$id.
        !           201: 			    '" value="'.$ans.'"><b>'.$alphabet[$ind].
        !           202: 				'</b>: '.$ans.'</td>';
1.89      albertel  203: 		    }
                    204: 		    $result.='</tr></table>';
                    205: 		} elsif ($$tagstack[-1] eq 'formularesponse') {
1.90    ! albertel  206: 		    $result.= '<br /><br /><font color="red">
        !           207:                            <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
        !           208:                            </textarea></font> <br /><br />';
1.89      albertel  209: 		}
                    210: 	    } elsif ($target eq 'tex') {
                    211: 		if (defined $unit and $Apache::lonhomework::type eq 'exam') {
                    212: 		    $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
                    213: 		}
                    214: 		if ($$tagstack[-1] eq 'numericalresponse') {
1.90    ! albertel  215: 		    my ($celllength,$number_of_tables,@table_range)=
        !           216: 			&get_table_sizes($formats[0],$number_of_bubbles);
1.89      albertel  217: 		    my $j=0;
                    218: 		    my $cou=0;
                    219: 		    $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
                    220: 		    for (my $i=0;$i<$number_of_tables;$i++) {
                    221: 			$result.='\vskip -1 mm \noindent \begin{tabular}{';
1.90    ! albertel  222: 			for (my $ind=0;$ind<$table_range[$j];$ind++) {
1.89      albertel  223: 			    $result.='lp{'.$celllength.' mm}';
                    224: 			}
                    225: 			$result.='}';
1.90    ! albertel  226: 			for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
        !           227: 			    my $ans=&format_number($bubble_values[$ind],
        !           228: 						   $formats[0],$target);
1.89      albertel  229: 			    $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$ans.'} ';
                    230: 			    if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
                    231: 			}
                    232: 			$cou += $table_range[$j];
                    233: 			$j++;
                    234: 			$result.='\\\\\end{tabular}\vskip 0 mm ';
                    235: 		    }
                    236: 		    $result.='\end{enumerate}';
                    237: 		} else {
                    238: 		    $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
                    239: 		    my $id = $Apache::inputtags::part;
                    240: 		    my $weight = &Apache::lonnet::EXT("resource.$id.weight");
                    241: 		    my $repetition = int $weight/9;
                    242: 		    if ($weight % 9 != 0) {$repetition++;}
                    243: 		    $result.='\begin{enumerate}';
                    244: 		    for (my $i=0;$i<$repetition;$i++) {
                    245: 			$result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
                    246: 		    }
1.90    ! albertel  247: 		    $increment=$repetition;
1.89      albertel  248: 		    $result.= '\end{enumerate}';
                    249: 		}
                    250: 	    }
                    251: 	}
                    252:     } elsif ($target eq 'edit') {
                    253: 	$result.='</td></tr>'.&Apache::edit::end_table;
                    254:     } elsif ($target eq 'answer' || $target eq 'analyze') {
1.58      sakharuk  255: 	
1.89      albertel  256: 	my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
                    257: 	if ($target eq 'analyze') {
                    258: 	    push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
                    259: 	    $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
                    260: 	}
                    261: 	&Apache::response::setup_params($$tagstack[-1]);
                    262: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
1.58      sakharuk  263: 	my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
                    264: 	my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
1.89      albertel  265: 	my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
                    266: 	
                    267: 	if ($target eq 'answer') {
                    268: 	    $result.=&Apache::response::answer_header($$tagstack[-1]);
                    269: 	}
                    270: 	for(my $i=0;$i<=$#answers;$i++) {
                    271: 	    my $ans=$answers[$i];
1.90    ! albertel  272: 	    my $fmt=$formats[0];
        !           273: 	    if (@formats && $#formats) {$fmt=$formats[$i];}
1.89      albertel  274: 	    my ($high,$low);
                    275: 	    if ($Apache::inputtags::params{'tol'}) {
                    276: 		($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
                    277: 	    }
                    278: 	    my ($sighigh,$siglow);
                    279: 	    if ($Apache::inputtags::params{'sig'}) {
                    280: 		($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
                    281: 	    }
                    282: 	    if ($fmt) {
                    283: 		$ans = sprintf('%.'.$fmt,$ans);
                    284: 		if ($high) {
1.90    ! albertel  285: 		    $high=sprintf('%.'.$fmt,$high);
        !           286: 		    $low =sprintf('%.'.$fmt,$low);
1.62      sakharuk  287: 		}
1.60      sakharuk  288: 	    }
1.89      albertel  289: 	    if ($target eq 'answer') {
                    290: 		if ($high) { $ans.=' ['.$low.','.$high.']'; }
                    291: 		if ($sighigh) { $ans.= " Sig <i>$siglow - $sighigh</i>"; }
                    292: 		$result.=&Apache::response::answer_part($$tagstack[-1],$ans);
                    293: 	    } elsif ($target eq 'analyze') {
                    294: 		push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
                    295: 		if ($high) {
                    296: 		    push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
                    297: 		    push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
1.58      sakharuk  298: 		}
1.79      sakharuk  299: 	    }
1.36      albertel  300: 	}
1.89      albertel  301: 	if ($unit) {
                    302: 	    if ($target eq 'answer') {
                    303: 		$result.=&Apache::response::answer_part($$tagstack[-1],
                    304: 							"Unit: <b>$unit</b>");
                    305: 	    } elsif ($target eq 'analyze') {
                    306: 		push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
                    307: 		      $unit);
                    308: 	    }
                    309: 	}
                    310: 	if ($type || $token->[1] eq 'stringresponse') {
                    311: 	    my $string='Case Insensitive';
                    312: 	    if ($type eq 'mc') {
                    313: 		$string='Multiple Choice';
                    314: 	    } elsif ($type eq 'cs') {
                    315: 		$string='Case Sensitive';
                    316: 	    } elsif ($type eq 'ci') {
                    317: 		$string='Case Insensitive';
                    318: 	    } elsif ($type eq 'fml') {
                    319: 		$string='Formula';
                    320: 	    }
                    321: 	    if ($target eq 'answer') {
                    322: 		$result.=&Apache::response::answer_part($$tagstack[-1],
                    323: 							'<b>'.$string.'</b>');
                    324: 	    } elsif ($target eq 'analyze') {
                    325: 		push (@{ $Apache::lonhomework::analyze{"$part_id.type"} },
                    326: 		      $type);
                    327: 	    }
                    328: 	}
                    329: 	if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
                    330: 	    my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
                    331: 	    $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
                    332: 	}
                    333: 	if ($target eq 'answer') {
                    334: 	    $result.=&Apache::response::answer_footer($$tagstack[-1]);
                    335: 	}
1.69      sakharuk  336:     }
1.90    ! albertel  337:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
        !           338: 	$target eq 'tex' || $target eq 'analyze') {
        !           339: 	&Apache::lonxml::increment_counter($increment);
        !           340:     }
1.89      albertel  341:     &Apache::response::end_response;
                    342:     return $result;
1.90    ! albertel  343: }
        !           344: 
        !           345: sub get_table_sizes {
        !           346:     my ($format,$number_of_bubbles)=@_;
        !           347:     my $max_val = 0;
        !           348:     if ($format=~m/^(\d+)E([^\d]*)(\d*)$/) {
        !           349: 	$max_val=$1+$2+4;
        !           350:     } else {
        !           351: 	$max_val=4;
        !           352:     }
        !           353:     $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
        !           354:     my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
        !           355:     my @table_range = ();
        !           356:     my $number_of_tables = int($number_of_bubbles/$max_val);
        !           357:     for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
        !           358:     if ($number_of_bubbles % $max_val != 0) {
        !           359: 	$number_of_tables++;
        !           360: 	push @table_range,($number_of_bubbles % $max_val);
        !           361:     }
        !           362:     return ($celllength,$number_of_tables,@table_range);
        !           363: }
        !           364: 
        !           365: sub format_number {
        !           366:     my ($number,$format,$target)=@_;
        !           367:     my $ans;
        !           368:     if ($format ne '') {
        !           369: 	$ans = sprintf('%.'.$format,$number);
        !           370:     } else {
        !           371: 	my $format = '';
        !           372: 	#What is the number? (integer,decimal,floating point)
        !           373: 	if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
        !           374: 	    $format = 'e'.$2;
        !           375: 	} elsif ($number=~/^(\d*)\.(\d*)$/) {
        !           376: 	    $format = '4f';
        !           377: 	} elsif ($number=~/^(\d*)$/) {
        !           378: 	    $format = 'd';
        !           379: 	}
        !           380: 	$ans = sprintf('%.'.$format,$number);
        !           381:     }
        !           382:     if ($target eq 'tex') {
        !           383: 	if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
        !           384: 	    my $number = $1;
        !           385: 	    my $power = $2;
        !           386: 	    $power=~s/^\+//;
        !           387: 	    $power=~s/^(-?)0+(\d+)//;
        !           388: 	    $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
        !           389: 	}
        !           390:     }
        !           391:     return $ans;
        !           392: }
        !           393: 
        !           394: sub make_numerical_bubbles {
        !           395:     my ($number_of_bubbles,@answers) =@_;
        !           396:     my @bubbles_values = ();
        !           397:     my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
        !           398:     my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
        !           399:     &Apache::response::setrandomnumber();
        !           400:     my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
        !           401:     my $power = $powers[$ind];
        !           402:     $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
        !           403:     my $factor = $factors[$ind];
        !           404:     for ($ind=0;$ind<$number_of_bubbles;$ind++) {
        !           405: 	$bubbles_values[$ind] = $answers[0]*($factor**($power-$powers[$#powers-$ind]));
        !           406:     }
        !           407:     return @bubbles_values;
1.51      albertel  408: }
                    409: 
                    410: sub get_tolrange {
1.89      albertel  411:     my ($ans,$tol)=@_;
                    412:     my ($high,$low);
                    413:     if ($tol =~ /%$/) {
                    414: 	chop($tol);
                    415: 	my $change=$ans*($tol/100.0);
                    416: 	$high=$ans+$change;
                    417: 	$low=$ans-$change;
                    418:     } else {
                    419: 	$high=$ans+$tol;
                    420: 	$low=$ans-$tol;
                    421:     }
                    422:     return ($high,$low);
1.52      albertel  423: }
                    424: 
                    425: sub get_sigrange {
1.89      albertel  426:     my ($sig)=@_;
                    427:     &Apache::lonxml::debug("Got a sig of :$sig:");
                    428:     my $sig_lbound;
                    429:     my $sig_ubound;
                    430:     if ($sig eq '') {
                    431: 	$sig_lbound = 0; #SIG_LB_DEFAULT
                    432: 	$sig_ubound =15; #SIG_UB_DEFAULT
                    433:     } else {
                    434: 	($sig_lbound,$sig_ubound) = split(/,/,$sig);
                    435: 	if (!$sig_lbound) {
                    436: 	    $sig_lbound = 0; #SIG_LB_DEFAULT
                    437: 	    $sig_ubound =15; #SIG_UB_DEFAULT
                    438: 	}
                    439: 	if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
1.52      albertel  440:     }
1.89      albertel  441:     return ($sig_ubound,$sig_lbound);
1.34      albertel  442: }
                    443: 
                    444: sub start_stringresponse {
1.89      albertel  445:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    446:     my $result;
                    447:     if ($target eq 'meta') {
                    448: 	$result=&Apache::response::meta_package_write('stringresponse');
                    449:     } else {
                    450: 	$result.=&start_numericalresponse(@_);
                    451:     }
                    452:     return $result;
1.34      albertel  453: }
                    454: 
                    455: sub end_stringresponse {
1.89      albertel  456:     return end_numericalresponse(@_);
1.44      albertel  457: }
                    458: 
                    459: sub start_formularesponse {
1.89      albertel  460:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    461:     my $result;
                    462:     if ($target eq 'meta') {
                    463: 	$result=&Apache::response::meta_package_write('formularesponse');
                    464:     } else {
                    465: 	$result.=&start_numericalresponse(@_);
                    466:     }
                    467:     return $result;
1.44      albertel  468: }
                    469: 
                    470: sub end_formularesponse {
1.89      albertel  471:     return end_numericalresponse(@_);
1.3       albertel  472: }
                    473: 
1.1       albertel  474: 1;
1.3       albertel  475: __END__
1.89      albertel  476: 

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