[system] / trunk / webwork / system / cgi / cgi-scripts / welcomeAction.pl Repository:
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Diff of /trunk/webwork/system/cgi/cgi-scripts/welcomeAction.pl

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Revision 155 Revision 157
… …
452 if ($displayMode eq 'pg') { 452 if ($displayMode eq 'pg') {
453 my %envir=defineProblemEnvir($mode, 0, $psvn, $Course, undef()); 453 my %envir=defineProblemEnvir($mode, 0, $psvn, $Course, undef());
454 my $input_string= join("",<INPUT>); 454 my $input_string= join("",<INPUT>);
455 my ($PG_PROBLEM_TEXT_REF, $PG_HEADER_TEXT_REF, $PG_ANSWER_HASH_REF, $PG_FLAGS_REF); 455 my ($PG_PROBLEM_TEXT_REF, $PG_HEADER_TEXT_REF, $PG_ANSWER_HASH_REF, $PG_FLAGS_REF);
456 456
457# BEGIN fork
458 if (open TEX_PIPE, "-|") {
459 # parent:
460 local $/ = "\n";
461 my $curr_pg_compile_error = <TEX_PIPE>;
462 chomp $curr_pg_compile_error;
463 push @PG_COMPILE_ERRORS, $curr_pg_compile_error if $curr_pg_compile_error;
464
465 undef $/;
466 $texSource .= <TEX_PIPE>;
467 } else {
468 # child:
469 $texSource = ''; # clear this at beginning of fork
470 @PG_COMPILE_ERRORS = (); # clear this as well
471# -----
457 my $pt = new PGtranslator; 472 my $pt = new PGtranslator;
458 $pt -> evaluate_modules( @{main::modules_to_evaluate}) ; 473 $pt -> evaluate_modules( @{main::modules_to_evaluate}) ;
459 $pt -> load_extra_packages(@{main::extra_packages_to_be_loaded}); 474 $pt -> load_extra_packages(@{main::extra_packages_to_be_loaded});
460 # The variables in the two preceding lines are defined in PG_module_list.pl 475 # The variables in the two preceding lines are defined in PG_module_list.pl
461 # require "${courseScriptsDirectory}PG_module_list.pl"; 476 # require "${courseScriptsDirectory}PG_module_list.pl";
462 # (Modules are defined by require statement above found near the top of this file) 477 # (Modules are defined by require statement above found near the top of this file)
463 $pt->environment(\%envir); 478 $pt->environment(\%envir);
464 $pt->initialize(); 479 $pt->initialize();
465 $pt->set_mask(); 480 $pt->set_mask();
466 $pt->source_string($input_string); 481 $pt->source_string($input_string);
467 $pt->unrestricted_load("${courseScriptsDirectory}PG.pl"); 482 $pt->unrestricted_load("${courseScriptsDirectory}PG.pl");
468 $pt->unrestricted_load("${courseScriptsDirectory}dangerousMacros.pl"); 483 $pt->unrestricted_load("${courseScriptsDirectory}dangerousMacros.pl");
469 $pt->translate(); 484 $pt->translate();
470 485
471 $PG_PROBLEM_TEXT_REF = $pt->ra_text(); 486 $PG_PROBLEM_TEXT_REF = $pt->ra_text();
472 $PG_HEADER_TEXT_REF = $pt->r_header;#\$PG_HEADER_TEXT; 487 $PG_HEADER_TEXT_REF = $pt->r_header;#\$PG_HEADER_TEXT;
473 $PG_ANSWER_HASH_REF = $pt->rh_correct_answers; 488 $PG_ANSWER_HASH_REF = $pt->rh_correct_answers;
474 $PG_FLAGS_REF = $pt->rh_flags; 489 $PG_FLAGS_REF = $pt->rh_flags;
475 490
476 $texSource .= join '', @{$PG_PROBLEM_TEXT_REF}; 491 $texSource .= join '', @{$PG_PROBLEM_TEXT_REF};
492
493# begin non-FORK code
477 if (defined($PG_FLAGS_REF->{'error_flag'}) and $PG_FLAGS_REF->{'error_flag'} == 1) { 494# if (defined($PG_FLAGS_REF->{'error_flag'}) and $PG_FLAGS_REF->{'error_flag'} == 1) {
478 push(@PG_COMPILE_ERRORS, qq{<A HREF="#problem0">$probSetHeader</A>} ); 495# push(@PG_COMPILE_ERRORS, qq{<A HREF="#problem0">$probSetHeader</A>} );
496# }
497# end non-FORK code
498
499# begin FORK-only code
500 my $stupid_forked_error_string;
501 if (defined($PG_FLAGS_REF->{'error_flag'}) and $PG_FLAGS_REF->{'error_flag'} ==1) {
502 $texSource = qq{<A HREF="#problem0">$probSetHeader</A>} . "\n" . $texSource;
503 } else {
504 $texSource = "\n" . $texSource;
479 } 505 }
506# end FORK code
480 507
481 if (defined($Global::WARNINGS) and $Global::WARNINGS) { 508 if (defined($Global::WARNINGS) and $Global::WARNINGS) {
482 my $warnings = '{\\bf WARNINGS:\par{\\tiny ' . $Global::WARNINGS . ' }}'; 509 my $warnings = '{\\bf WARNINGS:\par{\\tiny ' . $Global::WARNINGS . ' }}';
483 $warnings =~ s|/|\\\-/|g; # allow linebreaks in the middle of URLs 510 $warnings =~ s|/|\\\-/|g; # allow linebreaks in the middle of URLs
484 $warnings =~ s/<br>/\\par\n/ig; # introduce breaks at linebreaks and paragraphs 511 $warnings =~ s/<br>/\\par\n/ig; # introduce breaks at linebreaks and paragraphs
485 $warnings =~ s/<p>/\\par\n/ig; 512 $warnings =~ s/<p>/\\par\n/ig;
486 $warnings =~ s/\#/\\\#/g; # protect against some of the symbols which are reserved in tex 513 $warnings =~ s/\#/\\\#/g; # protect against some of the symbols which are reserved in tex
487 $warnings =~ s/\_/\\\_/g; 514 $warnings =~ s/\_/\\\_/g;
488 $warnings =~ s/\>/\\\>/g; 515 $warnings =~ s/\>/\\\>/g;
489 $warnings =~ s/\</\\\</g; 516 $warnings =~ s/\</\\\</g;
490 $texSource .= $warnings; 517 $texSource .= $warnings;
518 }
519 $Global::WARNINGS = ''; # reset the Global::WARNINGS parameter
520# -----
521 print $texSource;
522 exit;
491 } 523 }
492 524# END fork
493 $Global::WARNINGS = ''; # reset the Global::WARNINGS parameter
494 } else { 525 } else {
495 $texSource .= "Don't understand languages with extension $displayMode.<BR>\n"; 526 $texSource .= "Don't understand languages with extension $displayMode.<BR>\n";
496 } 527 }
497 close INPUT; 528 close INPUT;
498 } else { 529 } else {
… …
557# push(@PG_COMPILE_ERRORS, qq{<A HREF="#problem$probNum">$probNum</A>} ); 588# push(@PG_COMPILE_ERRORS, qq{<A HREF="#problem$probNum">$probNum</A>} );
558# } 589# }
559# end non-FORK code 590# end non-FORK code
560 591
561# begin FORK-only code 592# begin FORK-only code
562 my $stupid_forked_error_string;
563 if (defined($PG_FLAGS_REF->{'error_flag'}) and $PG_FLAGS_REF->{'error_flag'} ==1) { 593 if (defined($PG_FLAGS_REF->{'error_flag'}) and $PG_FLAGS_REF->{'error_flag'} ==1) {
564 $texSource = qq{<A HREF="#problem$probNum">$probNum</A>} . "\n" . $texSource; 594 $texSource = qq{<A HREF="#problem$probNum">$probNum</A>} . "\n" . $texSource;
565 } else { 595 } else {
566 $texSource = "\n" . $texSource; 596 $texSource = "\n" . $texSource;
567 } 597 }
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