Annotation of loncom/homework/caparesponse/caparesponse.pm, revision 1.88
1.3 albertel 1: # The LearningOnline Network with CAPA
2: # caparesponse definition
1.47 albertel 3: #
1.88 ! albertel 4: # $Id: caparesponse.pm,v 1.87 2003/04/07 22:44:32 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 {
1.44 albertel 34: &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
1.3 albertel 35: }
36:
37: sub start_caparesponse {
1.31 albertel 38: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 39: my $id = &Apache::response::start_response($parstack,$safeeval);
1.13 albertel 40: return '';
1.3 albertel 41: }
42:
43: sub end_caparesponse {
1.31 albertel 44: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.12 albertel 45: my $result = '';
1.16 albertel 46: if ( $target eq 'grade' ) {
1.27 albertel 47: if ( defined $ENV{'form.submitted'}) {
1.16 albertel 48: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1.87 albertel 49: my $response = $ENV{'form.HWVAL_'.$Apache::inputtags::response['-1']};
1.18 albertel 50: if ( $response =~ /[^\s]/) {
1.23 albertel 51: my $id = $Apache::inputtags::response['-1'];
52: my $previous= &Apache::response::check_for_previous($response,$id,$response);
1.22 albertel 53: if ( $previous ) {
54: $result = 'PREVIOUSLY_USED';
55: } else {
1.26 albertel 56: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
1.22 albertel 57: &Apache::lonxml::debug("submitted a $response<br>\n");
58: &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
59: my $expression="&caparesponse_check('".$response."','".
60: $$parstack[$#$parstack].
61: ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
62: ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
63: "');";
64: $result = &Apache::run::run($expression,$safeeval);
65: my ($ad) = split /:/ , $result;
1.26 albertel 66: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$ad;
1.22 albertel 67: &Apache::lonxml::debug("$expression");
68: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
69: }
1.18 albertel 70: }
1.16 albertel 71: }
1.30 albertel 72: } elsif ($target eq 'web') {
1.17 albertel 73: #$result .= "The correct answer is ".&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval)."\n";
1.7 albertel 74: }
75: #Apache::lonxml::debug("\n<br>\nreal end caparesponse<br>\n");
1.19 albertel 76: &Apache::response::end_response;
1.24 albertel 77: return '';
1.21 albertel 78: }
79:
80: sub start_numericalresponse {
1.31 albertel 81: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.22 albertel 82: my $id = &Apache::response::start_response($parstack,$safeeval);
1.32 albertel 83: my $result;
84: if ($target eq 'edit') {
1.49 matthew 85: $result.=&Apache::edit::tag_start($target,$token);
1.34 albertel 86: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
87: if ($token->[1] eq 'numericalresponse') {
1.77 www 88: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
89: &Apache::loncommon::help_open_topic('Physical_Units');
90: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
91: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
1.44 albertel 92: } elsif ($token->[1] eq 'stringresponse') {
1.35 albertel 93: $result.=&Apache::edit::select_arg('Type:','type',
1.70 albertel 94: [['cs','Case Sensitive'],['ci','Case Insensitive'],
95: ['mc','Case Insensitive, Any Order']],$token);
1.44 albertel 96: } elsif ($token->[1] eq 'formularesponse') {
1.78 www 97: $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40).
98: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
1.34 albertel 99: }
1.49 matthew 100: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.32 albertel 101: } elsif ($target eq 'modified') {
1.34 albertel 102: my $constructtag;
103: if ($token->[1] eq 'numericalresponse') {
104: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
1.36 albertel 105: 'answer','unit','format');
1.44 albertel 106: } elsif ($token->[1] eq 'stringresponse') {
1.34 albertel 107: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
108: 'answer','type');
1.44 albertel 109: } elsif ($token->[1] eq 'formularesponse') {
110: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
1.45 albertel 111: 'answer','samples');
1.34 albertel 112: }
1.33 albertel 113: if ($constructtag) {
114: $result = &Apache::edit::rebuild_tag($token);
115: $result.=&Apache::edit::handle_insert();
116: }
1.39 albertel 117: } elsif ($target eq 'meta') {
1.40 albertel 118: $result=&Apache::response::meta_package_write('numericalresponse');
1.73 albertel 119: } elsif ($target eq 'answer' || $target eq 'grade') {
120: &Apache::response::reset_params();
1.32 albertel 121: }
122: return $result;
1.21 albertel 123: }
124:
125: sub end_numericalresponse {
1.31 albertel 126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.22 albertel 127: my $result = '';
1.74 albertel 128: if (!$Apache::lonxml::default_homework_loaded) {
129: &Apache::lonxml::default_homework_load($safeeval);
130: }
1.22 albertel 131: if ( $target eq 'grade' ) {
1.27 albertel 132: if ( defined $ENV{'form.submitted'}) {
1.45 albertel 133: &Apache::response::setup_params($$tagstack[-1]);
1.22 albertel 134: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1.38 albertel 135: my $partid = $Apache::inputtags::part;
1.88 ! albertel 136: my $id = $Apache::inputtags::response['-1'];
1.87 albertel 137: my $response = &Apache::response::getresponse();
1.22 albertel 138: if ( $response =~ /[^\s]/) {
1.88 ! albertel 139: my $ad;
1.38 albertel 140: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
141: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
142: &Apache::lonxml::debug("submitted a $response<br>\n");
143: &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
1.88 ! albertel 144: if ($Apache::lonhomework::type eq 'exam' &&
! 145: ($$tagstack[-1] eq 'numericalresponse')) {
! 146: &Apache::response::setrandomnumber();
! 147: #FIXME the 8 here is based off of number of powers need a parameter
! 148: my $ind=&Math::Random::random_uniform_integer(1,0,8);
! 149: if ($ind eq $response) { $ad='CORRECT'; } else { $ad='INCORRECT'; }
1.87 albertel 150: } else {
151: $response =~ s/\\/\\\\/g;
152: $response =~ s/\'/\\\'/g;
153: &Apache::lonxml::debug("current $response");
154: my $expression="&caparesponse_check_list('".$response."','".
155: $$parstack[-1];
156: foreach my $key (keys(%Apache::inputtags::params)) {
157: $expression.= ';my $'. #'
158: $key.'="'.$Apache::inputtags::params{$key}.'"';
159: }
160: if ($$tagstack[-1] eq 'formularesponse') {
161: $expression.=';my $type="fml";';
162: } elsif ($$tagstack[-1] eq 'numericalresponse') {
163: $expression.=';my $type="float";';
164: }
165: $expression.="');";
166: $result = &Apache::run::run($expression,$safeeval);
167: my ($awards) = split /:/ , $result;
1.88 ! albertel 168: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
! 169: &Apache::lonxml::debug("$expression");
! 170: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1.45 albertel 171: }
1.48 albertel 172: &Apache::response::handle_previous(\%previous,$ad);
1.38 albertel 173: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
174: $result='';
1.22 albertel 175: }
1.24 albertel 176: }
1.53 sakharuk 177: } elsif ($target eq 'web' || $target eq 'tex') {
1.58 sakharuk 178: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
179: my $status = $Apache::inputtags::status['-1'];
180: if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
181: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
182: $safeeval);
183: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
184: $safeeval);
185: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
186:
187: if ($target eq 'web') {
1.64 albertel 188: $result="<br />The correct answer is ";
1.58 sakharuk 189: } elsif ($target eq 'tex') {
1.75 albertel 190: #$result='\vskip 0 mm The correct answer is \\texttt{';
1.58 sakharuk 191: }
192: for (my $i=0; $i <= $#answers; $i++) {
193: my $answer=$answers[$i];
194: my $format;
195: if ($#formats > 0) {
196: $format=$formats[$i];
197: } else {
198: $format=$formats[0];
199: }
200: my $formatted;
201: if ((defined($format)) && ($format ne '')) {
202: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
203: $formatted=sprintf('%.'.$format,$answer).',';
204: } else {
205: &Apache::lonxml::debug("no format answer :$answer:");
206: $formatted="$answer,";
207: }
1.76 sakharuk 208:
1.75 albertel 209: if ($target eq 'tex') {
210: $formatted='';
211: #$formatted=&Apache::lonxml::latex_special_symbols($formatted);
212: }
213: $result.=$formatted;
214: }
1.58 sakharuk 215: chop $result;
216: if ($target eq 'web') {
217: $result.=" $unit.<br />";
218: } elsif ($target eq 'tex') {
1.75 albertel 219: #$result.=&Apache::lonxml::latex_special_symbols($unit);
220: #$result.="}. \\vskip 0 mm ";
1.58 sakharuk 221: }
222: }
1.69 sakharuk 223: if ($Apache::lonhomework::type eq 'exam') {
1.58 sakharuk 224: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
225: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
226: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
227: my $number_of_bubbles = 8; #default values for number of bubbles
228: my @bubbles_values = ();
229: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
230: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
1.80 albertel 231: &Apache::response::setrandomnumber();
232: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
233: my $power = $powers[$ind];
234: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
1.58 sakharuk 235: my $factor = $factors[$ind];
236: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
1.80 albertel 237: $bubbles_values[$ind] = $answers[0]*($factor**($power-$powers[$#powers-$ind]));
238: }
1.84 sakharuk 239: my @alphabet=('A'..'Z');
1.58 sakharuk 240: if ($target eq 'web') {
1.76 sakharuk 241: if ($$tagstack[-1] eq 'numericalresponse') {
1.71 sakharuk 242: my $id=$Apache::inputtags::response[-1];
1.86 sakharuk 243: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
1.58 sakharuk 244: $result.= '<table border="1"><tr>';
245: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
1.62 sakharuk 246: my $ans;
1.61 sakharuk 247: if ($formats[0] ne '') {
1.62 sakharuk 248: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
1.60 sakharuk 249: } else {
1.62 sakharuk 250: my $badans = $bubbles_values[$ind];
251: my $format = '';
252: #What is the number? (integer,decimal,floating point)
253: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
254: $format = 'e'.$2;
255: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
256: $format = '4f';
257: } elsif ($badans=~/^(\d*)$/) {
258: $format = 'd';
259: }
260: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
261: }
1.87 albertel 262: $result.='<td><input type="radio" name="HWVAL_'.$id.'" value="'.$ans.'"><b>'.$alphabet[$ind].'</b>: '.$ans.'</td>';
1.60 sakharuk 263: }
1.58 sakharuk 264: $result.='</tr></table>';
1.76 sakharuk 265: } elsif ($$tagstack[-1] eq 'formularesponse') {
1.86 sakharuk 266: $result.= '<br /><br /><font color="red"><textarea name="formulainput" rows="4" cols="50"> </textarea></font> <br /><br />';
1.76 sakharuk 267: }
1.58 sakharuk 268: } elsif ($target eq 'tex') {
1.83 sakharuk 269: if (defined $unit and $Apache::lonhomework::type eq 'exam') {
270: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
271: }
1.76 sakharuk 272: if ($$tagstack[-1] eq 'numericalresponse') {
273: my $max_val = 0;
274: if ($formats[0]=~m/^(\d+)E([^\d]*)(\d*)$/) {
275: $max_val=$1+$2+4;
276: } else {
277: $max_val=4;
278: }
279: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
280: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
281: my @table_range = ();
282: my $number_of_tables = int($number_of_bubbles/$max_val);
283: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
284: if ($number_of_bubbles % $max_val != 0) {
285: $number_of_tables++;
286: push @table_range,($number_of_bubbles % $max_val);
1.58 sakharuk 287: }
1.76 sakharuk 288: my $j=0;
289: my $cou=0;
290: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
291: for (my $i=0;$i<$number_of_tables;$i++) {
292: $result.='\vskip -1 mm \noindent \begin{tabular}{';
293: for ($ind=0;$ind<$table_range[$j];$ind++) {
294: $result.='lp{'.$celllength.' mm}';
295: }
296: $result.='}';
297: for ($ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
298: my $ans;
299: if ($formats[0] ne '') {
300: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
301: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
302: my $number = $1;
303: my $power = $2;
304: $power=~s/^\+//;
305: $power=~s/^(-?)0+(\d+)//;
306: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
307: }
308: } else {
309: my $badans = $bubbles_values[$ind];
310: my $format = '';
311: #What is the number? (integer,decimal,floating point)
312: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
313: $format = 'e'.$2;
314: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
315: $format = '4f';
316: } elsif ($badans=~/^(\d*)$/) {
317: $format = 'd';
318: }
319: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
320: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
321: my $number = $1;
322: my $power = $2;
323: $power=~s/^\+//;
324: $power=~s/^(-?)0+(\d+)//;
325: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
326: }
327: }
328: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$ans.'} ';
329: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
330: }
331: $cou += $table_range[$j];
332: $j++;
333: $result.='\\\\\end{tabular}\vskip 0 mm ';
334: }
335: $result.='\end{enumerate}';
336: &Apache::lonxml::increment_counter();
337: } else {
1.86 sakharuk 338: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
1.79 sakharuk 339: my $id = $Apache::inputtags::part;
340: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
341: my $repetition = int $weight/9;
342: if ($weight % 9 != 0) {$repetition++;}
343: $result.='\begin{enumerate}';
344: for (my $i=0;$i<$repetition;$i++) {
345: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
346: &Apache::lonxml::increment_counter();
347: }
348: $result.= '\end{enumerate}';
349: }
1.36 albertel 350: }
1.69 sakharuk 351: }
1.32 albertel 352: } elsif ($target eq 'edit') {
353: $result.='</td></tr>'.&Apache::edit::end_table;
1.65 albertel 354: } elsif ($target eq 'answer' || $target eq 'analyze') {
1.44 albertel 355:
1.65 albertel 356: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
357: if ($target eq 'analyze') {
358: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
359: $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
360: }
361: &Apache::response::setup_params($$tagstack[-1]);
362: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
363: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
364: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
365: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
1.44 albertel 366:
1.65 albertel 367: if ($target eq 'answer') {
368: $result.=&Apache::response::answer_header($$tagstack[-1]);
369: }
370: for(my $i=0;$i<=$#answers;$i++) {
371: my $ans=$answers[$i];
372: my $fmt;
373: if (@formats) {
374: if ($#formats) {
375: $fmt=$formats[$i];
376: } else {
377: $fmt=$formats[0];
378: }
379: }
380: my ($high,$low);
381: if ($Apache::inputtags::params{'tol'}) {
382: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
383: }
384: my ($sighigh,$siglow);
385: if ($Apache::inputtags::params{'sig'}) {
386: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
387: }
388: if ($fmt) {
389: $ans = sprintf('%.'.$fmt,$ans);
390: if ($high) {
391: $high = sprintf('%.'.$fmt,$high); $low = sprintf('%.'.$fmt,$low);
392: }
393: }
394: if ($target eq 'answer') {
1.73 albertel 395: if ($high) { $ans.=' ['.$low.','.$high.']'; }
396: if ($sighigh) { $ans.= " Sig <i>$siglow - $sighigh</i>"; }
1.65 albertel 397: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
398: } elsif ($target eq 'analyze') {
399: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} },
400: $ans);
401: if ($high) {
402: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
403: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
404: }
405: }
406: }
407: if ($unit) {
408: if ($target eq 'answer') {
409: $result.=&Apache::response::answer_part($$tagstack[-1],
410: "Unit: <b>$unit</b>");
411: } elsif ($target eq 'analyze') {
412: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
413: $unit);
414: }
1.44 albertel 415: }
1.65 albertel 416: if ($type || $token->[1] eq 'stringresponse') {
417: my $string='Case Insensitive';
418: if ($type eq 'mc') {
419: $string='Multiple Choice';
420: } elsif ($type eq 'cs') {
421: $string='Case Sensitive';
422: } elsif ($type eq 'ci') {
423: $string='Case Insensitive';
424: } elsif ($type eq 'fml') {
425: $string='Formula';
426: }
427: if ($target eq 'answer') {
428: $result.=&Apache::response::answer_part($$tagstack[-1],
429: '<b>'.$string.'</b>');
430: } elsif ($target eq 'analyze') {
431: push (@{ $Apache::lonhomework::analyze{"$part_id.type"} },
432: $type);
433: }
1.52 albertel 434: }
1.65 albertel 435: if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
436: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
437: $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
1.51 albertel 438: }
1.65 albertel 439: if ($target eq 'answer') {
440: $result.=&Apache::response::answer_footer($$tagstack[-1]);
1.44 albertel 441: }
1.22 albertel 442: }
1.59 albertel 443: &Apache::response::end_response;
1.22 albertel 444: return $result;
1.51 albertel 445: }
446:
447: sub get_tolrange {
448: my ($ans,$tol)=@_;
449: my ($high,$low);
450: if ($tol =~ /%$/) {
451: chop($tol);
452: my $change=$ans*($tol/100.0);
453: $high=$ans+$change;
454: $low=$ans-$change;
455: } else {
456: $high=$ans+$tol;
457: $low=$ans-$tol;
458: }
459: return ($high,$low);
1.52 albertel 460: }
461:
462: sub get_sigrange {
463: my ($sig)=@_;
464: &Apache::lonxml::debug("Got a sig of :$sig:");
465: my $sig_lbound;
466: my $sig_ubound;
467: if ($sig eq '') {
468: $sig_lbound = 0; #SIG_LB_DEFAULT
469: $sig_ubound =15; #SIG_UB_DEFAULT
470: } else {
471: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
472: if (!$sig_lbound) {
473: $sig_lbound = 0; #SIG_LB_DEFAULT
474: $sig_ubound =15; #SIG_UB_DEFAULT
475: }
476: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
477: }
478: return ($sig_ubound,$sig_lbound);
1.34 albertel 479: }
480:
481: sub start_stringresponse {
1.42 albertel 482: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
483: my $result;
484: if ($target eq 'meta') {
485: $result=&Apache::response::meta_package_write('stringresponse');
486: } else {
487: $result.=&start_numericalresponse(@_);
488: }
489: return $result;
1.34 albertel 490: }
491:
492: sub end_stringresponse {
1.44 albertel 493: return end_numericalresponse(@_);
494: }
495:
496: sub start_formularesponse {
497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
498: my $result;
499: if ($target eq 'meta') {
500: $result=&Apache::response::meta_package_write('formularesponse');
501: } else {
502: $result.=&start_numericalresponse(@_);
503: }
504: return $result;
505: }
506:
507: sub end_formularesponse {
1.34 albertel 508: return end_numericalresponse(@_);
1.3 albertel 509: }
510:
1.1 albertel 511: 1;
1.3 albertel 512: __END__
513:
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