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got rid of remaining calls to "wwerror". Fixes bug #530.
1 2 3 use strict; 4 5 ## $ENV{'PATH'} .= ':/usr/math/bin'; 6 7 my $debug = 0; 8 $debug = 1 if $Global::imageDebugMode; 9 ## if $debug =1, log, etc. files created by 10 ## latex2html are not deleted 11 12 ############################################################## 13 # File: DisplayMacros.pl 14 # This contains the subroutines for creating problem files 15 ############################################################## 16 17 ################################################################ 18 # Copyright @1995-1998 by Michael E. Gage, Arnold K. Pizer and 19 # WeBWorK at the University of Rochester. All rights reserved. 20 ################################################################ 21 22 23 ## To add or delete displayModes edit this file 24 25 sub displaySelectModeLine_string 26 # called from probSet.pl 27 # displays the option line for selecting display modes 28 { 29 my ($displayMode) =@_ ; 30 $displayMode = $Global::htmlModeDefault unless(defined($displayMode)); 31 # If the system is set up with only one display mode, there is 32 # no need to display a choice - use the default 33 if(scalar(@{$Global::available_mode_list})<2) { 34 return('<input type="hidden" name="Mode" value="'. 35 $displayMode .'">'); 36 } 37 my $out = "Display Mode: <BR>"; 38 39 # A list of the available modes. 40 my $mode_list = $Global::available_mode_list; ## ref to a list of available modes 41 ## The format is [internal symbol, external name] 42 # A list of the available modes. 43 # Format is [internal symbol, external name, ""], where the third 44 # argument is changed to checked below for the current displayMode 45 # my $mode_list = [ 46 # ['HTML', 'text', ""], 47 # ['HTML_tth', 'formatted-text',""], 48 # ['HTML_dpng' ,'dvipng',""], 49 # ['Latex2HTML', 'typeset',""] 50 # ]; 51 52 # Make the format [internal symbol, external name, ''] 53 # The third argument is changed to checked below for the current displayMode 54 my $j; 55 for $j (0..(scalar(@{$mode_list})-1)) { 56 push @{$mode_list->[$j]},''; 57 } 58 59 if (! defined($displayMode) ) {$displayMode = $Global::htmlModeDefault;} 60 61 62 my $found = 0; 63 # Search through all modes to match for displayMode 64 # If we don't find one, found=0 will trigger warn message below 65 for $j (0..(scalar(@{$mode_list})-1)) { 66 if($mode_list->[$j]->[0] eq $displayMode) { 67 $mode_list->[$j]->[2] = "CHECKED"; 68 $found=1; 69 last; 70 } 71 } 72 73 for $j (@{$mode_list}) { 74 $out .= qq!<INPUT TYPE=RADIO NAME="Mode" VALUE="$j->[0]" $j->[2]>$j->[1]<BR>\n!; 75 } 76 if(! $found) { 77 my $wstr = " Error: displayMacros.pl: sub displaySelectModeLine. Unrecognized mode |$displayMode| . The acceptable modes are: "; 78 for $j (@{$mode_list}) { 79 $wstr .= " $j->[0] "; 80 } 81 warn $wstr; 82 } 83 $out; 84 } 85 86 sub displaySelectModeLine { 87 print displaySelectModeLine_string(@_); 88 } 89 ################################################################################################################## 90 # Does the initial processing of the problem. 91 # Returns an array containing the rendered problem. # 92 ################################################################################################################## 93 94 sub createDisplayedProblem { 95 96 my ($setNumber,$probNum,$psvn,$printlinesref,$rh_flags)= @_; 97 my @printlines; 98 99 100 my $coursel2hDirectory = getCoursel2hDirectory(); 101 unless(-e $coursel2hDirectory ) { 102 &createDirectory($coursel2hDirectory, $Global::l2h_set_directory_permission, 103 $Global::numericalGroupID); 104 } 105 106 unless(-e "${coursel2hDirectory}set$setNumber") { 107 &createDirectory("${coursel2hDirectory}set$setNumber",$Global::l2h_set_directory_permission, 108 $Global::numericalGroupID); 109 } 110 111 112 my $PROBDIR = convertPath("${coursel2hDirectory}set$setNumber/$probNum-$psvn/"); 113 my $TMPPROBDIR = convertPath("${coursel2hDirectory}$probNum-$psvn/"); 114 115 if (! -e $PROBDIR) { # no gifs of equations have been created 116 &l2hcreate($setNumber,$probNum,$psvn,$printlinesref); 117 118 } else { # determine if the gifs are older than the modifications of the source file 119 #&attachProbSetRecord($psvn); 120 my $fileName = &getProblemFileName($probNum,$psvn); 121 $fileName = "${Global::templateDirectory}$fileName"; 122 #print "\n\n The filename is $fileName \n\n"; 123 my @probDirStat = stat $PROBDIR; 124 my @sourceFileStat = stat $fileName; 125 #print "\n\n The source file age is $sourceFileStat[9] \n\n"; 126 #print "\n\n The prob dir age is $probDirStat[9] \n\n"; 127 128 if (($sourceFileStat[9] > $probDirStat[9] ) or 129 $rh_flags->{'refreshCachedImages'}) { 130 ## source file is newer or solutions should be shown recreate the l2h cache 131 rmDirectoryAndFiles($PROBDIR); 132 &l2hcreate($setNumber,$probNum,$psvn,$printlinesref); 133 } 134 135 136 } 137 #the problem has been rendered by Latex2HTML into this file: 138 # open(TEXXX, "${PROBDIR}${psvn}output.html") || die "Can't open ${PROBDIR}${psvn}output.html"; 139 open(TEXXX, "${PROBDIR}${psvn}output.html") or 140 warn "ERROR: $0". 141 "Can't open the HTML file: \n ${PROBDIR}${psvn}output.html\n(allegedly)". 142 "translated by latex2HTML\n at displayMacros.pl, line" . __LINE__ ; 143 144 @printlines = <TEXXX>; 145 push(@printlines, "The file ${PROBDIR}${psvn}output.html was empty") unless @printlines; 146 #print "PRINTLINES",@printlines; 147 close(TEXXX); 148 149 @printlines; 150 } 151 152 153 154 ########################################################################################### 155 # Formats and displays the responses to submitted answers to the problem. Returns a string. # 156 ########################################################################################### 157 158 sub display_answers { # this will be put in displayMacros.pl soon. 159 #my ($displayCorrectAnswersQ,$showPartialCorrectAnswers,$rh_answer_results,$rh_problem_result) = @_; 160 my ($rh_answer_results,$rh_problem_result,$rh_flags) = @_; 161 my $displayCorrectAnswersQ = $rh_flags ->{displayCorrectAnswersQ}; 162 my $showPartialCorrectAnswers = $rh_flags -> {showPartialCorrectAnswers}; 163 my @answer_entry_order = @{$rh_flags -> {ANSWER_ENTRY_ORDER} }; 164 my $ANSWER_PREFIX = $rh_flags -> {ANSWER_PREFIX}; 165 my $allAnswersCorrectQ = 1; 166 my $printedResponse=''; 167 ###### Print appropriate response to submitted answers 168 my ($i,$answerIsCorrectQ, $normalizedSubmittedAnswer,$normalizedCorrectAnswer,$ans_name,$errors); 169 $i=0; 170 # $printedResponse .= "\n<table border=0 cellpadding=0 cellspacing=0 bgcolor=\"#cccccc\">\n"; 171 # replace above line by next two lines as per Davide Cervone. AKP. 172 $printedResponse .= "\n<table border=0 cellpadding=7 cellspacing=0 bgcolor=\"#cccccc\">\n"; 173 $printedResponse .= "<tr><td><table border=0 cellpadding=0 cellspacing=0>\n"; 174 foreach my $key ( @answer_entry_order ) { 175 176 $i++; 177 $answerIsCorrectQ = $rh_answer_results ->{$key} -> {score}; 178 $normalizedSubmittedAnswer = $rh_answer_results ->{$key} -> {student_ans}; 179 $normalizedSubmittedAnswer = '' if ($normalizedSubmittedAnswer =~ /^error:\s+empty/); 180 $normalizedCorrectAnswer = $rh_answer_results ->{$key} -> {original_correct_ans}; 181 182 ## Handle the case where the answer evaluator does not return original_correct_ans 183 if ((!defined $normalizedCorrectAnswer) or (!$normalizedCorrectAnswer =~ /\S/)) { 184 $normalizedCorrectAnswer = $rh_answer_results ->{$key} -> {correct_ans}; 185 } 186 187 $errors = $rh_answer_results ->{$key} -> {ans_message}; 188 $errors = '' if ($errors eq 'empty'); 189 #$ans_name = $rh_answer_results ->{$key} -> {ans_name}; 190 #$ans_name =~ s/$ANSWER_PREFIX//; # this handles implicitly defined answer names. 191 $ans_name = $i; # just number the answers in order 192 $allAnswersCorrectQ = $allAnswersCorrectQ && $answerIsCorrectQ; 193 $printedResponse .= "\n<TR><TD align=left COLSPAN =2><em>Answer $ans_name entered:</em>--> $normalizedSubmittedAnswer <-- "; 194 $printedResponse .= "<B>Correct. </B></TD></TR>" if ($answerIsCorrectQ && $showPartialCorrectAnswers ); 195 $printedResponse .= "<B>Incorrect. </B></TD></TR>" if (!($answerIsCorrectQ) && $showPartialCorrectAnswers); 196 $errors =~ s/\n/<BR>/g; ## convert newlines to <BR> in error messages as per Davide Cervone 197 # change 9/2/00 by MEG -- give width in pixels rather than %. 198 # Some browsers break with % widht which is not the standard 199 $printedResponse .= "\n<TR> <TD align=left WIDTH = \"50\" > </TD><TD align=left>$errors</TD></TR>" if ($errors =~ /\w/); 200 201 $printedResponse .= "\n<TR><TD align=left WIDTH = \"50\"> </TD> <TD align=left><em>Correct answer:</em> $normalizedCorrectAnswer</TD></TR>" if ($displayCorrectAnswersQ); 202 203 } 204 if ($i == 1) { 205 $printedResponse .= "\n<TR><TD align=left COLSPAN =2><B>The above answer is correct.</B><BR>" if ($allAnswersCorrectQ); 206 $printedResponse .= "\n<TR><TD align=left COLSPAN =2><B>The above answer is NOT correct.</B><BR>" if (!($allAnswersCorrectQ)); 207 } 208 else { 209 $printedResponse .= "\n<TR><TD align=left COLSPAN =2><B>All of the above answers are correct.</B><BR>" if ($allAnswersCorrectQ); 210 $printedResponse .= "\n<TR><TD align=left COLSPAN =2><B>At least one of the above answers is NOT correct.</B><BR>" if (!($allAnswersCorrectQ)); 211 } 212 my $percentCorr = int(100*$rh_problem_result->{score} +.5); 213 214 $printedResponse .="\n<TR><TD align=left COLSPAN =2><B>Your score on this attempt is ${percentCorr}\%.</B><BR>"; 215 # $printedResponse .= "\n</table>\n"; 216 # replace above line by next line as per Davide Cervone. AKP. 217 $printedResponse .= "</td></tr>\n</table>\n</table>\n"; 218 # $printedResponse .="\n problem grader is ".$rh_problem_result->{type}." and the score is ".$rh_problem_result->{score}."<BR>\n"; 219 $printedResponse; 220 } 221 222 ########################################################################################### 223 # Previews submitted answers to the problem. Returns a string. # 224 ########################################################################################### 225 226 sub preview_answers { 227 my ($rh_answer_results,$rh_problem_result,$rh_flags) = @_; 228 my @answer_entry_order = @{$rh_flags -> {ANSWER_ENTRY_ORDER} }; 229 my $ANSWER_PREFIX = $rh_flags -> {ANSWER_PREFIX}; 230 my $printedResponse =''; 231 ###### Print appropriate response to submitted answers 232 my ($i,$original_student_ans,$normalizedSubmittedAnswer,$errors,$ans_name,$preview_text_string,$preview_latex_string); 233 my ($ans_evaluator_type, $value_word, $error_word, $show_value); 234 235 $i=0; 236 $printedResponse .= "\n<table border=0 cellpadding=0 cellspacing=0 >\n"; 237 foreach my $key ( @answer_entry_order ) { 238 $i++; 239 $ans_name = $rh_answer_results ->{$key} -> {ans_name}; 240 #$ans_name =~ s/$ANSWER_PREFIX//; # this handles implicitly defined answer names. #commented out by DME 6/6/2000 241 $original_student_ans = $rh_answer_results ->{$key} -> {original_student_ans}; 242 $normalizedSubmittedAnswer = $rh_answer_results ->{$key} -> {student_ans}; 243 $errors = $rh_answer_results ->{$key} -> {ans_message}; 244 $errors =~ s/\n/<BR>/g; ## convert newlines to <BR> in error messages as per Davide Cervone 245 $preview_text_string =''; 246 $preview_text_string = $rh_answer_results ->{$key} -> {preview_text_string} 247 if defined $rh_answer_results ->{$key} -> {preview_text_string}; 248 $preview_latex_string =''; 249 $preview_latex_string = $rh_answer_results ->{$key} -> {preview_latex_string} 250 if defined $rh_answer_results ->{$key} -> {preview_latex_string}; 251 $ans_evaluator_type = $rh_answer_results ->{$key} -> {type}; 252 $value_word = 'value:'; 253 $show_value = 0; 254 $show_value = 1 if ((($ans_evaluator_type =~ /number/) and ($normalizedSubmittedAnswer =~ /\w/)) or ($normalizedSubmittedAnswer =~ /^error/)); 255 $show_value = 0 if ($normalizedSubmittedAnswer =~ /^error:\s+empty/); 256 $value_word = '' if ($normalizedSubmittedAnswer =~ /^error/); 257 $error_word = 'error:'; 258 $error_word = '' if ($errors =~ /^error:/); 259 $printedResponse .= "\n<TR><TD align=left>Ans $i </TD>"; 260 #$printedResponse .= "\n<TD align=left><INPUT TYPE=\"text\" NAME=\"${ANSWER_PREFIX}${ans_name}\" VALUE=\"$original_student_ans\" SIZE=70></TD></TR>"; #commented out by DME 6/6/2000 261 $printedResponse .= "\n<TD align=left><INPUT TYPE=\"text\" NAME=\"${ans_name}\" VALUE=\"$original_student_ans\" SIZE=70></TD></TR>"; 262 $printedResponse .= "\n<TR> <TD align=left WIDTH = \"7%\" ></TD><TD align=left>parsed: $preview_text_string</TD></TR>" if ($preview_text_string =~ /\w/); 263 $printedResponse .= "\n<TR> <TD align=left WIDTH = \"7%\" ></TD><TD align=left>${value_word} $normalizedSubmittedAnswer</TD></TR>" if $show_value == 1; 264 $printedResponse .= "\n<TR> <TD align=left WIDTH = \"7%\" ></TD><TD align=left>${error_word} $errors</TD></TR>" if (($errors =~ /\w/) and ($errors ne 'empty')) ; 265 if ($preview_latex_string =~ /\w/) { 266 $printedResponse .= "\n<TR> <TD align=left WIDTH = \"7%\" ></TD><TD align=left>"; 267 $printedResponse .= "\n <APPLET CODE=\"HotEqn.class\" HEIGHT=\"80\" WIDTH=\"500\" ARCHIVE=\"HotEqn.zip\" NAME=\"Equation\" ALIGN=\"middle\" CODEBASE=\"$Global::appletsURL\"> "; 268 $printedResponse .= "\n <PARAM NAME=\"equation\" VALUE=\"$preview_latex_string\"></APPLET></TD></TR> "; 269 } 270 $printedResponse .= "\n<TR Height = 5></TR>"; 271 } 272 273 $printedResponse .= "\n</table>\n"; 274 $printedResponse; 275 } 276 277 278 sub lc_sort { # this sorts strings with letters and number groups, alternately lexigraphically and numerically 279 # (lc stands for library of congress as in QA617.34R45) 280 my($left,$right) = @_; 281 # format "abcd345.57def34ABC"; 282 # string assumed to begin with alpha 283 # string is split into alternating alpha and numeric groups 284 # numeric groups match [\d\.]+ 285 # numeric groups assumed to contain at least one digit, ( a period alone will cause and error) 286 # alpha groups can contain any characters except digits and the period 287 # spaces in alpha groups will cause unexpected behavior 288 # sort is not case sensitive 289 # _ sorts after alpha characters 290 291 # not case sensitive 292 293 my @a = split( /([\d\.]+)/, $left); 294 295 my @b = split( /([\d\.]+)/, $right); 296 297 my $out = undef; 298 my $mode = 0; # even is lexic and odd is numeric 299 my($l,$r); 300 while (@a) { 301 $l = shift @a; 302 $r = shift @b; 303 $out = ($mode++ % 2 == 0) ? uc($l) cmp uc($r) : $l <=> $r; # lexic or numeric compare 304 last unless $out==0; # stop unless $l and $r are different. 305 306 } 307 $out; 308 } 309 310 ##################################################################### 311 # Creates an insert which appears on the probSet page. # 312 ##################################################################### 313 sub createDisplayedInsert 314 { 315 #my ($mode,$setNumber,$fileName,$psvn,$courseName,$printlinesref)= @_; 316 my ($setNumber,$fileName,$psvn,$courseName,$printlinesref)= @_; 317 318 my @printlines=@$printlinesref; 319 my $PROBDIR; 320 321 # if($mode eq "HTML" || $mode eq 'HTML_tth') { 322 # @printlines = &createProblem2($mode,$fileName,$psvn,$courseName,$sourceref); 323 # 324 # } elsif ($mode eq 'Latex2HTML') { 325 #latex2html processing 326 my $coursel2hDirectory = getCoursel2hDirectory(); 327 unless(-e $coursel2hDirectory ) { 328 &createDirectory($coursel2hDirectory, $Global::l2h_set_directory_permission, 329 $Global::numericalGroupID); 330 } 331 332 unless(-e "${coursel2hDirectory}set$setNumber") { 333 &createDirectory("${coursel2hDirectory}set$setNumber",$Global::l2h_set_directory_permission, 334 $Global::numericalGroupID); 335 } 336 337 my $shortFileName = $fileName; 338 $shortFileName =~ s|^.*?([^\/]*)$|$1|; 339 $shortFileName =~ s|\..*$||; 340 $PROBDIR = convertPath("${coursel2hDirectory}set$setNumber/$shortFileName-$psvn/"); 341 if (! -e $PROBDIR) { 342 &l2hcreate($setNumber,$shortFileName,$psvn,$printlinesref); 343 } else { 344 #&attachProbSetRecord($psvn); 345 my $fullFileName = "${Global::templateDirectory}$fileName"; 346 #print "\n\n The full filename is $fullFileName \n\n"; 347 my @probDirStat = stat $PROBDIR; 348 my @sourceFileStat = stat $fullFileName; 349 #print "\n\n The source file age is $sourceFileStat[9] \n\n"; 350 #print "\n\n The prob dir age is $probDirStat[9] \n\n"; 351 if ($sourceFileStat[9] > $probDirStat[9] ) { ## source file is newer 352 rmDirectoryAndFiles($PROBDIR); 353 &l2hcreate($setNumber,$shortFileName,$psvn,$printlinesref); 354 } 355 #else {&createProblem2($mode, $fileName, $psvn,$courseName,$sourceref);} ##initialize problem 356 357 } 358 359 360 open(TEXXX, "${PROBDIR}${psvn}output.html") or 361 die "ERROR: $0 Can't open ${PROBDIR}${psvn}output.html"; 362 @printlines = <TEXXX>; 363 close(TEXXX); 364 # } else { 365 # 366 # @printlines="createDisplayedProblem: Error: Mode is not HTML, HTML_tthHTML_tth or Latex2HTML."; 367 # 368 # 369 # } 370 @printlines; 371 } 372 373 ##do not need this subroutine anymore 374 #sub l2hcreateProb { 375 # my ($setNumber,$probNum,$psvn,$printlinesref)= @_; 376 # #my ($setNumber,$probNum,$psvn,$courseName,$printlinesref)= @_; 377 # #my $mode = 'Latex2HTML'; 378 # 379 # #my @printlines = &createProblem($mode, $probNum, $psvn, $courseName,$sourceref,$refSubmittedAnswers); 380 # #my $printlinesref = \@printlines; 381 # my $tmpDirectory = "tmp/l2h/set$setNumber/$probNum-$psvn/"; 382 # l2hcreate($setNumber,$probNum,$psvn,$printlinesref) 383 #} 384 385 #do not use this subroutine anymore 386 #sub l2hcreateInsert { 387 # my ($setNumber,$shortFileName,$psvn,$printlinesref)= @_; 388 # #my $mode = 'Latex2HTML'; 389 # #my @printlines = &createProblem2($mode, $fileName, $psvn,$courseName,$sourceref); 390 # #my $printlinesref = \@printlines; 391 # #my $shortFileName = $fileName; 392 # #$shortFileName =~ s|^.*?([^\/]*)$|$1|; 393 # #my $tmpDirectory = "tmp/l2h/set$setNumber/$shortFileName-$psvn/"; 394 # l2hcreate($setNumber,$shortFileName,$psvn,$printlinesref) 395 #} 396 397 sub l2hcreate { ## for latex2HTML 96.1 and 98.1 398 my ($setNumber,$probNum,$psvn,$printlinesref) = @_; 399 400 # warn "l2hcreate is being executed displaymacros.pl line ".__LINE__; 401 402 my $PROBDIR = convertPath(&getCoursel2hDirectory."set$setNumber/$probNum-$psvn/"); 403 my $TMPPROBDIR = convertPath(&getCoursel2hDirectory."$probNum-$psvn/"); 404 my $PROBURL = &getCoursel2hURL."set$setNumber/$probNum-$psvn/"; 405 406 &createDirectory($TMPPROBDIR,$Global::l2h_prob_directory_permission,$Global::numericalGroupID) 407 unless(-e "$TMPPROBDIR"); 408 409 open(OUTTEXFILE, ">$TMPPROBDIR${psvn}output.tex") or die "Can't open temporary file $TMPPROBDIR${psvn}output.tex"; 410 411 print OUTTEXFILE &texInput($Global::TEX_PROB_PREAMBLE); 412 print OUTTEXFILE &texInput($Global::TEX_PROB_HEADER); 413 print OUTTEXFILE @$printlinesref; 414 print OUTTEXFILE &texInput($Global::TEX_PROB_FOOTER); 415 close(OUTTEXFILE); 416 417 ## Give this temporary file permission 666 in case the process dies before it it deleted 60 lines further down 418 chmod(0666, "$TMPPROBDIR${psvn}output.tex"); 419 420 ## system("/usr/math/bin/latex2html -init_file ${Global::mainDirectory}latex2html.init -dir $PROBDIR -prefix $psvn ${htmlDirectory}tmp/l2h/${psvn}output.tex > ${htmlDirectory}tmp/l2h/${psvn}l2h.log"); 421 my $latex2HTML_result = &makeL2H($TMPPROBDIR, $psvn) ; 422 warn( "LaTeX2HTML failed. Returned with status: $latex2HTML_result\n" ) if $latex2HTML_result ; 423 424 ##Get rid of all unwanted stuff in html document created by latex2html 425 unless(-e "${TMPPROBDIR}${psvn}output.html") { 426 warn "Can't rename ${TMPPROBDIR}${psvn}output.html"; 427 return (0); ### there was a failure in latex2html processing 428 ### we just give a warning so that so that l2hPrecreateSet.pl can continue 429 } 430 431 rename("${TMPPROBDIR}${psvn}output.html","${TMPPROBDIR}${psvn}output.html.org") or 432 warn "Can't rename ${TMPPROBDIR}${psvn}output.html at ". __LINE__; 433 open(TEXORG, "${TMPPROBDIR}${psvn}output.html.org") or 434 warn "Can't open ${TMPPROBDIR}${psvn}output.html.org"; 435 my @l2hOutputArray; 436 437 438 439 440 BLK: { # This is protection to make absolutely sure that the line separater is set properly. 441 # It's still a mystery as to where this becomes defined to be something else. 442 local($/); 443 $/ = "\n"; 444 @l2hOutputArray = <TEXORG>; 445 446 447 } 448 449 close(TEXORG); 450 open(TEXNEW, ">${TMPPROBDIR}${psvn}output.html") or 451 die "Can't open ${TMPPROBDIR}${psvn}output.html"; 452 453 454 foreach (@l2hOutputArray) { 455 if($_ =~ /^<META/) {next;} 456 if($_ =~ /^<!DOCTYPE HTML PUBLIC/) {next;} 457 if($_ =~ /^<HTML>/) {next;} 458 if($_ =~ /^<HEAD>/) {next;} 459 if($_ =~ /^<TITLE>/) {next;} 460 if($_ =~ /^<LINK REL/) {next;} 461 if($_ =~ /^<\/HEAD>/) {next;} 462 if($_ =~ /^<BODY/) {next;} 463 if($_ =~ /^<\/BODY>/) {next;} 464 if($_ =~ /^<\/HTML>/) {next;} 465 if($_ =~ /^<BR> <HR>/) {next;} 466 467 print TEXNEW ; 468 } 469 470 471 close(TEXNEW); 472 473 ## Now do global multiline changes on whole file 474 475 open(TEXNEW, "${TMPPROBDIR}${psvn}output.html") or 476 die "Can't open ${TMPPROBDIR}${psvn}output.html"; 477 @l2hOutputArray = <TEXNEW>; 478 close(TEXNEW); 479 my $l2hOutputString = join('',@l2hOutputArray); 480 481 ## make gif images created by latex2html locatable by server 482 ## NOTE: $htmlURL is defined in webworkCourse.ph . Often this will 483 ## will be a link appearing in a public_html_docs directory. 484 ## The $htmlURL, any links, and the next line must be coordinated. 485 486 $l2hOutputString =~ s|${psvn}img|${PROBURL}${psvn}img|g; 487 488 ## remove multiline comments 489 $l2hOutputString =~ s|<!--.*?-->\n||sg; 490 491 open(TEXNEW, ">${TMPPROBDIR}${psvn}output.html") or 492 die "Can't open ${TMPPROBDIR}${psvn}output.html"; 493 print TEXNEW $l2hOutputString; 494 close(TEXNEW); 495 496 ## remove unneeded files 497 498 unless ($debug) {unlink("${TMPPROBDIR}${psvn}output.html.org");} 499 unless ($debug) {unlink(<${TMPPROBDIR}*images.*>);} 500 unless ($debug) {unlink(<${TMPPROBDIR}.*.db>);} 501 unless ($debug) {unlink(<${TMPPROBDIR}*.db>);} 502 unless ($debug) {unlink(<${TMPPROBDIR}IMG_PARAMS.*>);} 503 unless ($debug) {unlink(<${TMPPROBDIR}*.pl>);} 504 unless ($debug) {unlink(<${TMPPROBDIR}*.css>);} 505 unless ($debug) {unlink("${TMPPROBDIR}index.html");} 506 unless ($debug) {unlink("${TMPPROBDIR}${psvn}output.tex");} 507 unless ($debug) {unlink("${TMPPROBDIR}${psvn}l2h.log");} 508 unless ($debug) { 509 my @allfiles = (); 510 opendir( DIRHANDLE, "$TMPPROBDIR") || warn qq/Can't read directory $TMPPROBDIR $!/; 511 @allfiles = map "$TMPPROBDIR$_", grep( /^l2h/, readdir DIRHANDLE); 512 closedir(DIRHANDLE); 513 my $l2hTempDir = $allfiles[0]; 514 if (defined $l2hTempDir) { 515 unlink(<$l2hTempDir/*>); 516 rmdir ($l2hTempDir); 517 } 518 } 519 520 ## change permission and group on remaining files 521 chmod($Global::l2h_data_permission, glob("${TMPPROBDIR}*")); 522 chown(-1,$Global::numericalGroupID,glob("${TMPPROBDIR}*")); 523 524 ## Now that all the processing has been done, rename the $TMPPROBDIR TO $PROBDIR 525 526 rename("$TMPPROBDIR","$PROBDIR") or 527 warn "Can't rename the temporary problem directory:\n $TMPPROBDIR to $PROBDIR\n at displayMacros.pl , line: " . __LINE__ ; 528 529 } 530 531 532 ######################################################################################################### 533 ##Subroutine that makes answers sticky in l2h mode # 534 # # 535 # INPUT: $rh_submittedAnswers Reference to a hash containing the answers submitted # 536 # $ra_printLines Reference to an array containing the (HTML) text to be output # 537 # $rh_flags Reference to a hash containing flags; specifically a # 538 # reference to an array containing the answer field labels # 539 # # 540 # OUTPUT: @printLines An array containing the (modified) text to be output # 541 # # 542 # OVERVIEW: l2h_sticky_answers is given HTML text, a list of submitted answers, and a list of # 543 # answer field labels. Its job is to retain the user's answers between submissions # 544 # when in typeset mode (this is handled elsewhere in the text modes). Basically, its # 545 # job is to act as a "filter" for the HTML text, replacing the answer fields that have # 546 # been reset with fields containing the previously entered answers, returning the # 547 # modified text. A brief high-level overview of the algorithm follows: # 548 # # 549 # ALGORITHM: The references are first dereferenced. The incoming text is first joined into # 550 # one string. It is then split up again, but not by line. Rather, the text is split # 551 # such that each array entry is either text which can be ignored, or a single # 552 # <INPUT...> tag. Each entry is then processed. If it is an <INPUT> tag, then it # 553 # must be checked for the presence of each answer field label for which a value was # 554 # submitted (there are many <INPUT> fields which are not answer fields, so we can't # 555 # assume that consecutive <INPUT> fields correspond to consecutive answer labels). # 556 # If a label is found, the blank value space is replaced with the appropriate # 557 # submitted answer (note that we can assume that there is a one-to-one correspondence # 558 # between answer labels and submitted answers; this is guaranteed by the specs). Radio # 559 # buttons and checkboxes are handled specially; see below. The modified text is then # 560 # added to the output string, which is split on a placeholder such that the output # 561 # array has the same number of entries as the input array (this is not required, but # 562 # might avoid some subtle bug in the future). # 563 # # 564 # NOTE: The specifications seem to require that the input text array consist of one # 565 # field for each line of text. However, it appears that the input is actually one # 566 # field, with newline characters separating lines. This function should accept # 567 # either form of input, although the "correct" form of one field per line has not # 568 # been tested. It is possible that, if input is received in this form AND the # 569 # newline characters have been truncated, the output could be garbled. # 570 # # 571 # --David Etlinger 6/7/2000 # 572 # # 573 # ADDED: Added a few lines of code to properly handle radio buttons. Checkboxes still need # 574 # to be implemented. # 575 # --David Etlinger 6/14/2000 # 576 # # 577 # ADDED: Added code to handle checkboxes. This is complicated because the submitted checkboxes # 578 # are originally stored as a single string with "\0" as a delimiter. If the input type # 579 # is determined to be checkboxes, the string is first split into an array. A hash key # 580 # in a special checkbox array is then made to point to the array. This is done because # 581 # there might be more than one checkbox set in a single question. Each time an input line # 582 # of type checkbox appears, the next value in this array is popped into a temp variable. # 583 # If it is determined that the line being processed corresponds to this value, the line # 584 # is processed (made "sticky"); otherwise, the value is pushed back on the array. The # 585 # fact that the number of checked cehckboxes is known but the total number of checkboxes # 586 # is not means that a given line of input type checkbox might or might not correspond # 587 # to the next value in the checkbox array. (I hope this explanation is clear enough!) # 588 # --David Etlinger 6/28/2000 # 589 ######################################################################################################### 590 591 sub l2h_sticky_answers { 592 my ( $rh_submittedAnswers, $ra_printLines, $rh_flags ) = @_; 593 594 #warn ("rh_submittedAnswers = \@rh_submittedAnswers"); 595 #warn ("ra_printLines = \@{ra_printLines}"); 596 #warn ("rh_flags = \@{rh_flags}"); 597 598 my %submittedAnswers = %{$rh_submittedAnswers}; 599 my @printLines = @{$ra_printLines}; 600 my @answerLabels = @{$rh_flags -> {ANSWER_ENTRY_ORDER}}; 601 602 my $line; # holds the text of each line 603 my $label; # holds each answer label 604 my $counter = 0; # holds the index of the current answer 605 my $output; # holds the text the subroutine returns 606 607 my $answer_value; 608 609 my %checkboxAns; # holder for the checkbox multi-part answers 610 my $nextCheckboxAns; # temp holder for the next checkbox answer to be processed 611 612 my $placeholder = "\x253"; # unused hex character to join text lines with 613 614 #first, convert the array of text lines to one string... 615 my $text = join( "$placeholder", @printLines ); 616 617 #then, split it such that a line consists of either text 618 #or a single <INPUT> tag (case insensitive; note also that 619 #whitespace within the <INPUT> tag is accounted for). 620 # NOTE -- the regular expression searches for "<", then any 621 # amount of whitespace, then "INPUT", then any number of 622 # characters that aren't ">", then ">". I think that instead of 623 # searching for characters that aren't ">", I could have instead 624 # searched to match a minimal number of characters (using ?), and 625 # then ">". I don't know regular expressions well enough to tell 626 # if this might lead to some subtle difference. 627 my @textLines = split( m|(<\s*INPUT[^>]*>)|is, $text ); 628 #my @textLines = split( m|(<\s*INPUT.*?>)|is, $text ); 629 630 foreach $line ( @textLines ) { 631 if( $line =~ m|<\s*INPUT|i ) { 632 foreach $label ( @answerLabels ) { 633 next unless exists( $submittedAnswers{$label} ); # skip if no answer was submitted. 634 if( $line =~ m|NAME\s*=\s*"$label"|i ) { 635 if( $line =~ m|TYPE\s*=\s*RADIO|i ) { #handle radio buttons 636 $line =~ s|VALUE\s*=\s*"$submittedAnswers{$label}"|VALUE = "$submittedAnswers{$label}" CHECKED|i; 637 } 638 elsif( $line =~ m|TYPE\s*=\s*CHECKBOX|i ) { 639 #make the hash key point to an anonymous array 640 $checkboxAns{$label} = [ split( "\0", $submittedAnswers{$label} ) ] if not exists( $checkboxAns{$label} ); 641 if( defined $checkboxAns{$label}[0] ) { 642 $nextCheckboxAns = shift @{$checkboxAns{$label}}; 643 if( $line !~ s|VALUE\s*=\s*"$nextCheckboxAns"|VALUE = "$nextCheckboxAns" CHECKED|i ) { 644 unshift( @{$checkboxAns{$label}}, $nextCheckboxAns ); #put the unused answer back on the list 645 } 646 } 647 } 648 else { 649 # we'll assume this is something else, like one or more fields. 650 # if it's several fields, we need to take only one answer at a time 651 # \0 are used to delimeter between entries. 652 if ($submittedAnswers{$label} =~ /\0/ ) { 653 my @answers = split("\0", $submittedAnswers{$label}); 654 $answer_value = shift(@answers); # use up the first answer 655 $submittedAnswers{$label}=join "\0", @answers; # store the rest 656 $answer_value= '' unless defined($answer_value); 657 658 } 659 else { 660 $answer_value = $submittedAnswers{$label}; 661 } 662 663 $line =~ s|VALUE\s*=\s*""|VALUE = "$answer_value"|i; 664 } 665 } 666 } 667 } #end if test for "<INPUT" 668 669 $output .= $line; 670 } #end foreach 671 672 @printLines = split( m|$placeholder|, $output ); 673 return @printLines; 674 } #end l2h_sticky_answers() 675 676 ## This is the old system (but newer than the one below). 677 ## It has been replaced for two reasons: 678 ## 1) It is complicated and difficult to understand or modify 679 ## 2) It does not work for several situations that rarely come up, 680 ## but must be handled properly. Specifically, it doesn't handle 681 ## text with more than one <INPUT> tag on a given line very well. 682 ## there are probably other problems, but that is the biggest. 683 ## --DME 6/7/2000 684 # # the following doubly nested loop iterates over each line, 685 # # and for each line searches for each answer label. Technically, 686 # # it might have been faster to join each entry in @printlines 687 # # into one string, search on that, and split it back up, but I 688 # # felt that the slight theoretical speed gain was not worth the 689 # # added complexity. 690 # warn "answerLabels = @answerLabels"; #DEBUG 691 # foreach $line ( @printLines ) { 692 # warn "Line is $line"; #DEBUG 693 # foreach $label ( @answerLabels ) { 694 # if( $line =~ m|<INPUT TYPE=TEXT.*NAME="$label| ) { 695 # while ($line =~ /VALUE = ""/) { 696 # # Put trailing space in displayed answer so that while loop will 697 # # always end. We are using the form of the s/// operator which 698 # # evaluates its right hand side 699 # $line =~ s|NAME="$label" VALUE = ""| 700 # $counter++; 701 # $submittedAnswers[$counter]=" " unless defined ($submittedAnswers[$counter]) 702 # && not $submittedAnswers[$counter] =~ /^\s*$/; 703 # qq{ NAME="$label" VALUE = "$submittedAnswers[$counter]" } |e; 704 # # This insures that in VALUE = "$submittedAnswers[$counter]" 705 # # the quantity $submittedAnswers[$counter] 706 # # is never empty. This is required in order to terminate the loop. 707 # } #end while 708 # push( @output, $line ); 709 # } #end if 710 # else { 711 # push( @output, $line ); 712 # } 713 # } #end foreach over @answerLabels 714 # } #end foreach over @printLines 715 # 716 # @printLines = @output; 717 # } #end outer if 718 # 719 # return @printLines; 720 # } #end l2h_sticky_answers() 721 722 ##subroutine that makes answers sticky in l2h mode 723 # this is an old version of this routine, which assumes (incorrectly) 724 # that answer labels begin with "AnSwEr". I've left it here just in case... 725 # DME 6/6/2000 726 #sub l2h_sticky_answers { 727 # my ($refSubmittedAnswers, $refprintlines)=@_; 728 # my @printlines=@$refprintlines; 729 # if ((@{$refSubmittedAnswers}!=0)) { 730 # my $line; 731 # my @output=(); 732 # foreach $line (@printlines) { 733 # if ($line =~ m|<INPUT TYPE=TEXT.*NAME="AnSwEr|) { 734 # #print "<P>line doesn't exists<P>\n" unless defined($line); 735 # while ($line =~ /VALUE = ""/) { 736 # ## Put trailing space in displayed answer so that while loop will 737 # ## always end. We are using the form of the s/// operator which evaluates its right hand side 738 # $line =~ s|NAME="AnSwEr(\d*)" VALUE = ""| 739 # my $tttemp = $1; 740 # ${$refSubmittedAnswers}[$tttemp-1]=" " unless defined (${$refSubmittedAnswers}[$tttemp-1]) 741 # && not ${$refSubmittedAnswers}[$tttemp-1] =~ /^\s*$/; 742 # 743 # qq{ NAME="AnSwEr$tttemp" VALUE = "${$refSubmittedAnswers}[$tttemp-1]" } |e; 744 # # This insures that in VALUE = "${$refSubmittedAnswers}[$tttemp-1]" the quantity ${$refSubmittedAnswers}[$tttemp-1] 745 # # is never empty. This is required in order to terminate the loop. 746 # } 747 # push(@output, $line); 748 # } 749 # else { 750 # push(@output, $line); 751 # } 752 # } 753 # 754 # @printlines = @output; 755 # } 756 # 757 # @printlines; 758 #} 759 760 ##subroutine that updates current keys in the l2h mode 761 762 # sub l2h_update_keys { 763 # my ($sessionKey, $refprintlines)= @_; 764 # my @printlines=@$refprintlines; 765 # my $line; 766 # my @output=(); 767 # #my $sessionKey = $main::sessionKey; 768 # warn "hi lines = ",join("",@printlines); 769 # foreach $line (@printlines) { 770 # if ($line =~ m|^\s*<A(.*?)\&key=[^&]*&user|) { #<A.*&key=.*?&user 771 # #grab the session key from the CGI input or make it blank 772 # $line =~ s|^\s*<A(.*?)&key=[^&]*&user|<A$1&key=$sessionKey&user|; 773 # warn "line = $line<BR>"; 774 # push(@output, $line); 775 # }else{ 776 # push(@output, $line); 777 # } 778 # 779 # } 780 # @printlines; 781 # 782 # } 783 784 785 sub makeL2H { 786 my ($TMPPROBDIR,$psvn) =@_; 787 $ENV{PATH} .= "$Global::extendedPath"; 788 if($Global::externalLaTeX2HTMLVersion eq "98.1p1") { 789 system("$Global::externalLaTeX2HTMLPath -no_math -init_file $Global::externalLaTeX2HTMLInit -dir $TMPPROBDIR -prefix $psvn $TMPPROBDIR${psvn}output.tex > $TMPPROBDIR${psvn}l2h.log 2>&1"); 790 } elsif($Global::externalLaTeX2HTMLVersion eq "96.1") { 791 system("$Global::externalLaTeX2HTMLPath -init_file $Global::externalLaTeX2HTMLInit -dir $TMPPROBDIR -prefix $psvn $TMPPROBDIR${psvn}output.tex > $TMPPROBDIR${psvn}l2h.log"); 792 } else { 793 die "Unknown LaTeX2HTML version: \$Global::externalLaTeX2HTMLVersion = $Global::externalLaTeX2HTMLVersion"; 794 } 795 } 796 797 1;
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