1: # The LearningOnline Network with CAPA
2: # XML Parser Module
3: #
4: # $Id: lonxml.pm,v 1.531.2.16 2014/06/21 23:39:27 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
39:
40: =pod
41:
42: =head1 NAME
43:
44: Apache::lonxml
45:
46: =head1 SYNOPSIS
47:
48: XML Parsing Module
49:
50: This is part of the LearningOnline Network with CAPA project
51: described at http://www.lon-capa.org.
52:
53:
54: =head1 SUBROUTINES
55:
56: =cut
57:
58:
59:
60: package Apache::lonxml;
61: use vars
62: qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount);
63: use strict;
64: use LONCAPA;
65: use HTML::LCParser();
66: use HTML::TreeBuilder();
67: use HTML::Entities();
68: use Safe();
69: use Safe::Hole();
70: use Math::Cephes();
71: use Math::Random();
72: use Opcode();
73: use POSIX qw(strftime);
74: use Time::HiRes qw( gettimeofday tv_interval );
75: use Symbol();
76:
77: sub register {
78: my ($space,@taglist) = @_;
79: foreach my $temptag (@taglist) {
80: push(@{ $Apache::lonxml::alltags{$temptag} },$space);
81: }
82: }
83:
84: sub deregister {
85: my ($space,@taglist) = @_;
86: foreach my $temptag (@taglist) {
87: my $tempspace = $Apache::lonxml::alltags{$temptag}[-1];
88: if ($tempspace eq $space) {
89: pop(@{ $Apache::lonxml::alltags{$temptag} });
90: }
91: }
92: #&printalltags();
93: }
94:
95: use Apache::Constants qw(:common);
96: use Apache::lontexconvert();
97: use Apache::style();
98: use Apache::run();
99: use Apache::londefdef();
100: use Apache::scripttag();
101: use Apache::languagetags();
102: use Apache::edit();
103: use Apache::inputtags();
104: use Apache::outputtags();
105: use Apache::lonnet;
106: use Apache::File();
107: use Apache::loncommon();
108: use Apache::lonfeedback();
109: use Apache::lonmsg();
110: use Apache::loncacc();
111: use Apache::lonmaxima();
112: use Apache::lonr();
113: use Apache::lonlocal;
114: use Apache::lonhtmlcommon();
115: use Apache::functionplotresponse();
116: use Apache::lonnavmaps();
117:
118: #==================================== Main subroutine: xmlparse
119:
120: #debugging control, to turn on debugging modify the correct handler
121:
122: $Apache::lonxml::debug=0;
123:
124: # keeps count of the number of warnings and errors generated in a parse
125: $warningcount=0;
126: $errorcount=0;
127:
128: #path to the directory containing the file currently being processed
129: @pwd=();
130:
131: #these two are used for capturing a subset of the output for later processing,
132: #don't touch them directly use &startredirection and &endredirection
133: @outputstack = ();
134: $redirection = 0;
135:
136: #controls wheter the <import> tag actually does
137: $import = 1;
138: @extlinks=();
139:
140: # meta mode is a bit weird only some output is to be turned off
141: #<output> tag turns metamode off (defined in londefdef.pm)
142: $metamode = 0;
143:
144: # turns on and of run::evaluate actually derefencing var refs
145: $evaluate = 1;
146:
147: # data structure for edit mode, determines what tags can go into what other tags
148: %insertlist=();
149:
150: # stores the list of active tag namespaces
151: @namespace=();
152:
153: # stores all Scrit Vars displays for later showing
154: my @script_var_displays=();
155:
156: # a pointer the the Apache request object
157: $Apache::lonxml::request='';
158:
159: # a problem number counter, and check on ether it is used
160: $Apache::lonxml::counter=1;
161: $Apache::lonxml::counter_changed=0;
162:
163: # Part counter hash. In analysis mode, the
164: # problems can use this to record which parts increment the counter
165: # by how much. The counter subs will maintain this hash via
166: # their optional part parameters. Note that the assumption is that
167: # analysis is done in one request and therefore it is not necessary to
168: # save this information request-to-request.
169:
170:
171: %Apache::lonxml::counters_per_part = ();
172:
173: #internal check on whether to look at style defs
174: $Apache::lonxml::usestyle=1;
175:
176: #locations used to store the parameter string for style substitutions
177: $Apache::lonxml::style_values='';
178: $Apache::lonxml::style_end_values='';
179:
180: #array of ssi calls that need to occur after we are done parsing
181: @Apache::lonxml::ssi_info=();
182:
183: #should we do the postag variable interpolation
184: $Apache::lonxml::post_evaluate=1;
185:
186: #a header message to emit in the case of any generated warning or errors
187: $Apache::lonxml::warnings_error_header='';
188:
189: # Control whether or not LaTeX symbols should be substituted for their
190: # \ style equivalents...this may be turned off e.g. in an verbatim
191: # environment.
192:
193: $Apache::lonxml::substitute_LaTeX_symbols = 1; # Starts out on.
194:
195: sub enable_LaTeX_substitutions {
196: $Apache::lonxml::substitute_LaTeX_symbols = 1;
197: }
198: sub disable_LaTeX_substitutions {
199: $Apache::lonxml::substitute_LaTeX_symbols = 0;
200: }
201:
202: sub xmlend {
203: my ($target,$parser)=@_;
204: my $mode='xml';
205: my $status='OPEN';
206: if ($Apache::lonhomework::parsing_a_problem ||
207: $Apache::lonhomework::parsing_a_task ) {
208: $mode='problem';
209: $status=$Apache::inputtags::status[-1];
210: }
211: my $discussion;
212: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
213: ['LONCAPA_INTERNAL_no_discussion']);
214: if (
215: ( (!exists($env{'form.LONCAPA_INTERNAL_no_discussion'}))
216: || ($env{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true')
217: )
218: && ($env{'form.inhibitmenu'} ne 'yes')
219: ) {
220: $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
221: }
222: if ($target eq 'tex') {
223: $discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
224: &Apache::lonxml::newparser($parser,\$discussion,'');
225: return '';
226: }
227:
228: return $discussion;
229: }
230:
231: sub tokeninputfield {
232: my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
233: $defhost=~tr/a-z/A-Z/;
234: return (<<ENDINPUTFIELD)
235: <script type="text/javascript">
236: function updatetoken() {
237: var comp=new Array;
238: var barcode=unescape(document.tokeninput.barcode.value);
239: comp=barcode.split('*');
240: if (typeof(comp[0])!="undefined") {
241: document.tokeninput.codeone.value=comp[0];
242: }
243: if (typeof(comp[1])!="undefined") {
244: document.tokeninput.codetwo.value=comp[1];
245: }
246: if (typeof(comp[2])!="undefined") {
247: comp[2]=comp[2].toUpperCase();
248: document.tokeninput.codethree.value=comp[2];
249: }
250: document.tokeninput.barcode.value='';
251: }
252: </script>
253: <form method="post" name="tokeninput" action="">
254: <table border="2" bgcolor="#FFFFBB">
255: <tr><th>DocID Checkin</th></tr>
256: <tr><td>
257: <table>
258: <tr>
259: <td>Scan in Barcode</td>
260: <td><input type="text" size="22" name="barcode"
261: onchange="updatetoken()"/></td>
262: </tr>
263: <tr><td><i>or</i> Type in DocID</td>
264: <td>
265: <input type="text" size="5" name="codeone" />
266: <b><font size="+2">*</font></b>
267: <input type="text" size="5" name="codetwo" />
268: <b><font size="+2">*</font></b>
269: <input type="text" size="10" name="codethree" value="$defhost"
270: onchange="this.value=this.value.toUpperCase()" />
271: </td></tr>
272: </table>
273: </td></tr>
274: <tr><td><input type="submit" value="Check in DocID" /></td></tr>
275: </table>
276: </form>
277: ENDINPUTFIELD
278: }
279:
280: sub maketoken {
281: my ($symb,$tuname,$tudom,$tcrsid)=@_;
282: unless ($symb) {
283: $symb=&Apache::lonnet::symbread();
284: }
285: unless ($tuname) {
286: $tuname=$env{'user.name'};
287: $tudom=$env{'user.domain'};
288: $tcrsid=$env{'request.course.id'};
289: }
290: return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
291: }
292:
293: sub printtokenheader {
294: my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
295: unless ($token) { return ''; }
296:
297: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
298: unless ($tsymb) {
299: $tsymb=$symb;
300: }
301: unless ($tuname) {
302: $tuname=$name;
303: $tudom=$domain;
304: $tcrsid=$courseid;
305: }
306:
307: my $plainname=&Apache::loncommon::plainname($tuname,$tudom);
308:
309: if ($target eq 'web') {
310: my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
311: return
312: '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
313: &mt('Checked out for').' '.$plainname.
314: '<br />'.&mt('User').': '.$tuname.' at '.$tudom.
315: '<br />'.&mt('ID').': '.$idhash{$tuname}.
316: '<br />'.&mt('CourseID').': '.$tcrsid.
317: '<br />'.&mt('Course').': '.$env{'course.'.$tcrsid.'.description'}.
318: '<br />'.&mt('DocID').': '.$token.
319: '<br />'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'<hr />';
320: } else {
321: return $token;
322: }
323: }
324:
325: sub printalltags {
326: my $temp;
327: foreach $temp (sort keys %Apache::lonxml::alltags) {
328: &Apache::lonxml::debug("$temp -- ".
329: join(',',@{ $Apache::lonxml::alltags{$temp} }));
330: }
331: }
332:
333: sub xmlparse {
334: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
335:
336: &setup_globals($request,$target);
337: &Apache::inputtags::initialize_inputtags();
338: &Apache::bridgetask::initialize_bridgetask();
339: &Apache::outputtags::initialize_outputtags();
340: &Apache::edit::initialize_edit();
341: &Apache::londefdef::initialize_londefdef();
342:
343: #
344: # do we have a course style file?
345: #
346:
347: if ($env{'request.course.id'} && $env{'request.state'} ne 'construct') {
348: my $bodytext=
349: $env{'course.'.$env{'request.course.id'}.'.default_xml_style'};
350: if ($bodytext) {
351: foreach my $file (split(',',$bodytext)) {
352: my $location=&Apache::lonnet::filelocation('',$file);
353: my $styletext=&Apache::lonnet::getfile($location);
354: if ($styletext ne '-1') {
355: %style_for_target = (%style_for_target,
356: &Apache::style::styleparser($target,$styletext));
357: }
358: }
359: }
360: } elsif ($env{'construct.style'}
361: && ($env{'request.state'} eq 'construct')) {
362: my $location=&Apache::lonnet::filelocation('',$env{'construct.style'});
363: my $styletext=&Apache::lonnet::getfile($location);
364: if ($styletext ne '-1') {
365: %style_for_target = (%style_for_target,
366: &Apache::style::styleparser($target,$styletext));
367: }
368: }
369: #&printalltags();
370: my @pars = ();
371: my $pwd=$env{'request.filename'};
372: $pwd =~ s:/[^/]*$::;
373: &newparser(\@pars,\$content_file_string,$pwd);
374:
375: my $safeeval = new Safe;
376: my $safehole = new Safe::Hole;
377: &init_safespace($target,$safeeval,$safehole,$safeinit);
378: #-------------------- Redefinition of the target in the case of compound target
379:
380: ($target, my @tenta) = split('&&',$target);
381:
382: my @stack = ();
383: my @parstack = ();
384: &initdepth();
385: &init_alarm();
386: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
387: $safeeval,\%style_for_target,1);
388:
389: if (@stack) {
390: &warning(&mt('At end of file some tags were still left unclosed:').
391: ' <tt><'.join('></tt>, <tt><',reverse(@stack)).
392: '></tt>');
393: }
394: if ($env{'request.uri'}) {
395: &writeallows($env{'request.uri'});
396: }
397: &do_registered_ssi();
398: if ($Apache::lonxml::counter_changed) { &store_counter() }
399:
400: &clean_safespace($safeeval);
401:
402: if (@script_var_displays) {
403: if ($finaloutput =~ m{</body>\s*</html>\s*$}s) {
404: my $scriptoutput = join('',@script_var_displays);
405: $finaloutput=~s{(</body>\s*</html>)\s*$}{$scriptoutput$1}s;
406: } else {
407: $finaloutput .= join('',@script_var_displays);
408: }
409: undef(@script_var_displays);
410: }
411: &init_state();
412: if ($env{'form.return_only_error_and_warning_counts'}) {
413: if ($env{'request.filename'}=~/\.(html|htm|xml)$/i) {
414: my $error=&verify_html($content_file_string);
415: if ($error) { $errorcount++; }
416: }
417: return "$errorcount:$warningcount";
418: }
419: return $finaloutput;
420: }
421:
422: sub latex_special_symbols {
423: my ($string,$where)=@_;
424: #
425: # If e.g. in verbatim mode, then don't substitute.
426: # but return original string.
427: #
428: if (!($Apache::lonxml::substitute_LaTeX_symbols)) {
429: return $string;
430: }
431: if ($where eq 'header') {
432: $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10.
433: $string =~ s/(\$|%|\{|\})/\\$1/g;
434: $string=&Apache::lonprintout::character_chart($string);
435: # any & or # leftover should be safe to just escape
436: $string=~s/([^\\])\&/$1\\\&/g;
437: $string=~s/([^\\])\#/$1\\\#/g;
438: $string =~ s/_/\\_/g; # _ -> \_
439: $string =~ s/\^/\\\^{}/g; # ^ -> \^{}
440: } else {
441: $string=~s/\\/\\ensuremath{\\backslash}/g;
442: $string=~s/\\\%|\%/\\\%/g;
443: $string=~s/\\{|{/\\{/g;
444: $string=~s/\\}|}/\\}/g;
445: $string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
446: $string=~s/\\\$|\$/\\\$/g;
447: $string=~s/\\\_|\_/\\\_/g;
448: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
449: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
450: $string=&Apache::lonprintout::character_chart($string);
451: # any & or # leftover should be safe to just escape
452: $string=~s/\\\&|\&/\\\&/g;
453: $string=~s/\\\#|\#/\\\#/g;
454: $string=~s/\|/\$\\mid\$/g;
455: #single { or } How to escape?
456: }
457: return $string;
458: }
459:
460: sub inner_xmlparse {
461: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target,$start)=@_;
462: my $finaloutput = '';
463: my $result;
464: my $token;
465: my $dontpop=0;
466: my $startredirection = $Apache::lonxml::redirection;
467: while ( $#$pars > -1 ) {
468: while ($token = $$pars['-1']->get_token) {
469: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
470: if ($metamode<1) {
471: my $text=$token->[1];
472: if ($token->[0] eq 'C' && $target eq 'tex') {
473: $text = '';
474: # $text = '%'.$text."\n";
475: }
476: $result.=$text;
477: }
478: } elsif (($token->[0] eq 'D')) {
479: if ($metamode<1 && $target eq 'web') {
480: my $text=$token->[1];
481: $result.=$text;
482: }
483: } elsif ($token->[0] eq 'PI') {
484: if ($metamode<1 && $target eq 'web') {
485: $result=$token->[2];
486: }
487: } elsif ($token->[0] eq 'S') {
488: # add tag to stack
489: push (@$stack,$token->[1]);
490: # add parameters list to another stack
491: push (@$parstack,&parstring($token));
492: &increasedepth($token);
493: if ($Apache::lonxml::usestyle &&
494: exists($$style_for_target{$token->[1]})) {
495: $Apache::lonxml::usestyle=0;
496: my $string=$$style_for_target{$token->[1]}.
497: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
498: &Apache::lonxml::newparser($pars,\$string);
499: $Apache::lonxml::style_values=$$parstack[-1];
500: $Apache::lonxml::style_end_values=$$parstack[-1];
501: } else {
502: $result = &callsub("start_$token->[1]", $target, $token, $stack,
503: $parstack, $pars, $safeeval, $style_for_target);
504: }
505: } elsif ($token->[0] eq 'E') {
506: if ($Apache::lonxml::usestyle &&
507: exists($$style_for_target{'/'."$token->[1]"})) {
508: $Apache::lonxml::usestyle=0;
509: my $string=$$style_for_target{'/'.$token->[1]}.
510: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
511: &Apache::lonxml::newparser($pars,\$string);
512: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
513: $Apache::lonxml::style_end_values='';
514: $dontpop=1;
515: } else {
516: #clear out any tags that didn't end
517: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
518: my $lasttag=$$stack[-1];
519: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
520: &Apache::lonxml::warning(&mt('Using tag [_1] on line [_2] as end tag to [_3]','</'.$token->[1].'>','.$token->[3].','<'.$$stack[-1].'>'));
521: last;
522: } else {
523: &Apache::lonxml::warning(&mt('Found tag [_1] on line [_2] when looking for [_3] in file.','</'.$token->[1].'>',$token->[3],'</'.$$stack[-1].'>'));
524: &end_tag($stack,$parstack,$token);
525: }
526: }
527: $result = &callsub("end_$token->[1]", $target, $token, $stack,
528: $parstack, $pars,$safeeval, $style_for_target);
529: }
530: } else {
531: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
532: }
533: #evaluate variable refs in result
534: if ($Apache::lonxml::post_evaluate &&$result ne "") {
535: my $extras;
536: if (!$Apache::lonxml::usestyle) {
537: $extras=$Apache::lonxml::style_values;
538: }
539: if ( $#$parstack > -1 ) {
540: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
541: } else {
542: $result= &Apache::run::evaluate($result,$safeeval,$extras);
543: }
544: }
545: $Apache::lonxml::post_evaluate=1;
546:
547: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
548: #Style file definitions should be correct
549: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
550: $result=&latex_special_symbols($result);
551: }
552: }
553:
554: if ($Apache::lonxml::redirection) {
555: $Apache::lonxml::outputstack['-1'] .= $result;
556: } else {
557: $finaloutput.=$result;
558: }
559: $result = '';
560:
561: if ($token->[0] eq 'E' && !$dontpop) {
562: &end_tag($stack,$parstack,$token);
563: }
564: $dontpop=0;
565: }
566: if ($#$pars > -1) {
567: pop @$pars;
568: pop @Apache::lonxml::pwd;
569: }
570: }
571:
572: # if ($target eq 'meta') {
573: # $finaloutput.=&endredirection;
574: # }
575:
576: if ( $start && $target eq 'grade') { &endredirection(); }
577: if ( $Apache::lonxml::redirection > $startredirection) {
578: while ($Apache::lonxml::redirection > $startredirection) {
579: $finaloutput .= &endredirection();
580: }
581: }
582: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
583: $finaloutput=&afterburn($finaloutput);
584: }
585: if ($target eq 'modified') {
586: # if modfied, handle startpart and endpart
587: $finaloutput=~s/\<startpartmarker[^\>]*\>(.*)\<endpartmarker[^\>]*\>/<part>$1<\/part>/gs;
588: }
589: return $finaloutput;
590: }
591:
592: ##
593: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
594: ## otherwise do not call it as we do not know what it is.
595: ##
596: sub callsub {
597: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
598: my $currentstring='';
599: my $nodefault;
600: {
601: my $sub1;
602: no strict 'refs';
603: my $tag=$token->[1];
604: # get utterly rid of extended html tags
605: if ($tag=~/^x\-/i) { return ''; }
606: my $space=$Apache::lonxml::alltags{$tag}[-1];
607: if (!$space) {
608: $tag=~tr/A-Z/a-z/;
609: $sub=~tr/A-Z/a-z/;
610: $space=$Apache::lonxml::alltags{$tag}[-1]
611: }
612:
613: my $deleted=0;
614: if (($token->[0] eq 'S') && ($target eq 'modified')) {
615: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
616: $parstack,$parser,$safeeval,
617: $style);
618: }
619: if (!$deleted) {
620: if ($space) {
621: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
622: $sub1="$space\:\:$sub";
623: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
624: $parstack,$parser,$safeeval,
625: $style);
626: } else {
627: if ($target eq 'tex') {
628: # throw away tag name
629: return '';
630: }
631: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
632: if ($metamode <1) {
633: if (defined($token->[4]) && ($metamode < 1)) {
634: $currentstring = $token->[4];
635: } else {
636: $currentstring = $token->[2];
637: }
638: }
639: }
640: # &Apache::lonxml::debug("nodefalt:$nodefault:");
641: if ($currentstring eq '' && $nodefault eq '') {
642: if ($target eq 'edit') {
643: #&Apache::lonxml::debug("doing default edit for $token->[1]");
644: if ($token->[0] eq 'S') {
645: $currentstring = &Apache::edit::tag_start($target,$token);
646: } elsif ($token->[0] eq 'E') {
647: $currentstring = &Apache::edit::tag_end($target,$token);
648: }
649: }
650: }
651: if ($target eq 'modified' && $nodefault eq '') {
652: if ($currentstring eq '') {
653: if ($token->[0] eq 'S') {
654: $currentstring = $token->[4];
655: } elsif ($token->[0] eq 'E') {
656: $currentstring = $token->[2];
657: } else {
658: $currentstring = $token->[2];
659: }
660: }
661: if ($token->[0] eq 'S') {
662: $currentstring.=&Apache::edit::handle_insert();
663: } elsif ($token->[0] eq 'E') {
664: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
665: }
666: }
667: }
668: use strict 'refs';
669: }
670: return $currentstring;
671: }
672:
673: {
674: my %state;
675:
676: sub init_state {
677: undef(%state);
678: }
679:
680: sub set_state {
681: my ($key,$value) = @_;
682: $state{$key} = $value;
683: return $value;
684: }
685: sub get_state {
686: my ($key) = @_;
687: return $state{$key};
688: }
689: }
690:
691: sub setup_globals {
692: my ($request,$target)=@_;
693: $Apache::lonxml::request=$request;
694: $errorcount=0;
695: $warningcount=0;
696: $Apache::lonxml::internal_error=0;
697: $Apache::lonxml::default_homework_loaded=0;
698: $Apache::lonxml::usestyle=1;
699: &init_counter();
700: &clear_bubble_lines_for_part();
701: &init_state();
702: &set_state('target',$target);
703: @Apache::lonxml::pwd=();
704: @Apache::lonxml::extlinks=();
705: @script_var_displays=();
706: @Apache::lonxml::ssi_info=();
707: $Apache::lonxml::post_evaluate=1;
708: $Apache::lonxml::warnings_error_header='';
709: $Apache::lonxml::substitute_LaTeX_symbols = 1;
710: if ($target eq 'meta') {
711: $Apache::lonxml::redirection = 0;
712: $Apache::lonxml::metamode = 1;
713: $Apache::lonxml::evaluate = 1;
714: $Apache::lonxml::import = 0;
715: } elsif ($target eq 'answer') {
716: $Apache::lonxml::redirection = 0;
717: $Apache::lonxml::metamode = 1;
718: $Apache::lonxml::evaluate = 1;
719: $Apache::lonxml::import = 1;
720: } elsif ($target eq 'grade') {
721: &startredirection(); #ended in inner_xmlparse on exit
722: $Apache::lonxml::metamode = 0;
723: $Apache::lonxml::evaluate = 1;
724: $Apache::lonxml::import = 1;
725: } elsif ($target eq 'modified') {
726: $Apache::lonxml::redirection = 0;
727: $Apache::lonxml::metamode = 0;
728: $Apache::lonxml::evaluate = 0;
729: $Apache::lonxml::import = 0;
730: } elsif ($target eq 'edit') {
731: $Apache::lonxml::redirection = 0;
732: $Apache::lonxml::metamode = 0;
733: $Apache::lonxml::evaluate = 0;
734: $Apache::lonxml::import = 0;
735: } elsif ($target eq 'analyze') {
736: $Apache::lonxml::redirection = 0;
737: $Apache::lonxml::metamode = 0;
738: $Apache::lonxml::evaluate = 1;
739: $Apache::lonxml::import = 1;
740: } else {
741: $Apache::lonxml::redirection = 0;
742: $Apache::lonxml::metamode = 0;
743: $Apache::lonxml::evaluate = 1;
744: $Apache::lonxml::import = 1;
745: }
746: }
747:
748: sub init_safespace {
749: my ($target,$safeeval,$safehole,$safeinit) = @_;
750: $safeeval->reval('use LaTeX::Table;');
751: $safeeval->deny_only(':dangerous');
752: $safeeval->reval('use LONCAPA::LCMathComplex;');
753: $safeeval->permit_only(":default");
754: $safeeval->permit("entereval");
755: $safeeval->permit(":base_math");
756: $safeeval->permit("sort");
757: $safeeval->permit("time");
758: $safeeval->permit("caller");
759: $safeeval->deny("rand");
760: $safeeval->deny("srand");
761: $safeeval->deny(":base_io");
762: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
763: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
764: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
765: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
766: '&chem_standard_order');
767: $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status');
768: $safehole->wrap(\&Apache::response::implicit_multiplication,$safeeval,'&implicit_multiplication');
769:
770: $safehole->wrap(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval');
771: $safehole->wrap(\&Apache::lonmaxima::maxima_check,$safeeval,'&maxima_check');
772: $safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval,
773: '&maxima_cas_formula_fix');
774:
775: $safehole->wrap(\&Apache::lonr::r_eval,$safeeval,'&r_eval');
776: $safehole->wrap(\&Apache::lonr::Rentry,$safeeval,'&Rentry');
777: $safehole->wrap(\&Apache::lonr::Rarray,$safeeval,'&Rarray');
778: $safehole->wrap(\&Apache::lonr::r_check,$safeeval,'&r_check');
779: $safehole->wrap(\&Apache::lonr::r_cas_formula_fix,$safeeval,
780: '&r_cas_formula_fix');
781:
782: $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
783: '&capa_formula_fix');
784:
785: $safehole->wrap(\&Apache::lonlocal::locallocaltime,$safeeval,
786: '&locallocaltime');
787:
788: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
789: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
790: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
791: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
792: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
793: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
794: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
795: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
796: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
797: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
798: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
799: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
800: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
801: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
802: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
803: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
804: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
805: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
806: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
807:
808: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
809: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
810: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
811: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
812: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
813: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
814: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
815: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
816: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
817: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
818: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
819: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
820: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
821: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
822: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
823: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
824: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
825: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
826: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
827: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
828: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
829: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
830:
831: $safehole->wrap(\&Math::Cephes::Matrix::mat,$safeeval,'&mat');
832: $safehole->wrap(\&Math::Cephes::Matrix::new,$safeeval,
833: '&Math::Cephes::Matrix::new');
834: $safehole->wrap(\&Math::Cephes::Matrix::coef,$safeeval,
835: '&Math::Cephes::Matrix::coef');
836: $safehole->wrap(\&Math::Cephes::Matrix::clr,$safeeval,
837: '&Math::Cephes::Matrix::clr');
838: $safehole->wrap(\&Math::Cephes::Matrix::add,$safeeval,
839: '&Math::Cephes::Matrix::add');
840: $safehole->wrap(\&Math::Cephes::Matrix::sub,$safeeval,
841: '&Math::Cephes::Matrix::sub');
842: $safehole->wrap(\&Math::Cephes::Matrix::mul,$safeeval,
843: '&Math::Cephes::Matrix::mul');
844: $safehole->wrap(\&Math::Cephes::Matrix::div,$safeeval,
845: '&Math::Cephes::Matrix::div');
846: $safehole->wrap(\&Math::Cephes::Matrix::inv,$safeeval,
847: '&Math::Cephes::Matrix::inv');
848: $safehole->wrap(\&Math::Cephes::Matrix::transp,$safeeval,
849: '&Math::Cephes::Matrix::transp');
850: $safehole->wrap(\&Math::Cephes::Matrix::simq,$safeeval,
851: '&Math::Cephes::Matrix::simq');
852: $safehole->wrap(\&Math::Cephes::Matrix::mat_to_vec,$safeeval,
853: '&Math::Cephes::Matrix::mat_to_vec');
854: $safehole->wrap(\&Math::Cephes::Matrix::vec_to_mat,$safeeval,
855: '&Math::Cephes::Matrix::vec_to_mat');
856: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
857: '&Math::Cephes::Matrix::check');
858: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
859: '&Math::Cephes::Matrix::check');
860:
861: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
862: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
863: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
864: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
865: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
866: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
867:
868: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
869: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
870: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
871: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
872: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
873: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
874: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
875: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
876: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
877: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
878: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
879: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
880: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
881: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
882: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
883: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
884: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
885: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
886: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
887: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
888: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
889: $safehole->wrap(\&Apache::loncommon::languages,$safeeval,'&languages');
890: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
891: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
892: $safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
893: $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS');
894: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
895: $safehole->wrap(\&Apache::functionplotresponse::fpr_val,$safeeval,'&fpr_val');
896: $safehole->wrap(\&Apache::functionplotresponse::fpr_f,$safeeval,'&fpr_f');
897: $safehole->wrap(\&Apache::functionplotresponse::fpr_dfdx,$safeeval,'&fpr_dfdx');
898: $safehole->wrap(\&Apache::functionplotresponse::fpr_d2fdx2,$safeeval,'&fpr_d2fdx2');
899: $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorcoords,$safeeval,'&fpr_vectorcoords');
900: $safehole->wrap(\&Apache::functionplotresponse::fpr_objectcoords,$safeeval,'&fpr_objectcoords');
901: $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorlength,$safeeval,'&fpr_vectorlength');
902: $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorangle,$safeeval,'&fpr_vectorangle');
903:
904: # use Data::Dumper;
905: # $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper');
906: #need to inspect this class of ops
907: # $safeeval->deny(":base_orig");
908: $safeeval->permit("require");
909: $safeinit .= ';$external::target="'.$target.'";';
910: &Apache::run::run($safeinit,$safeeval);
911: &initialize_rndseed($safeeval);
912: }
913:
914: sub clean_safespace {
915: my ($safeeval) = @_;
916: delete_package_recurse($safeeval->{Root});
917: }
918:
919: sub delete_package_recurse {
920: my ($package) = @_;
921: my @subp;
922: {
923: no strict 'refs';
924: while (my ($key,$val) = each(%{*{"$package\::"}})) {
925: if (!defined($val)) { next; }
926: local (*ENTRY) = $val;
927: if (defined *ENTRY{HASH} && $key =~ /::$/ &&
928: $key ne "main::" && $key ne "<none>::")
929: {
930: my ($p) = $package ne "main" ? "$package\::" : "";
931: ($p .= $key) =~ s/::$//;
932: push(@subp,$p);
933: }
934: }
935: }
936: foreach my $p (@subp) {
937: delete_package_recurse($p);
938: }
939: Symbol::delete_package($package);
940: }
941:
942: sub initialize_rndseed {
943: my ($safeeval)=@_;
944: my $rndseed;
945: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
946: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
947: my $safeinit = '$external::randomseed="'.$rndseed.'";';
948: &Apache::lonxml::debug("Setting rndseed to $rndseed");
949: &Apache::run::run($safeinit,$safeeval);
950: }
951:
952: sub default_homework_load {
953: my ($safeeval)=@_;
954: &Apache::lonxml::debug('Loading default_homework');
955: my $default=&Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonIncludes'}.
956: '/default_homework.lcpm');
957: if ($default eq -1) {
958: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
959: } else {
960: &Apache::run::run($default,$safeeval);
961: $Apache::lonxml::default_homework_loaded=1;
962: }
963: }
964:
965: {
966: my $alarm_depth;
967: sub init_alarm {
968: alarm(0);
969: $alarm_depth=0;
970: }
971:
972: sub start_alarm {
973: if ($alarm_depth<1) {
974: my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'});
975: if ($old) {
976: &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur.");
977: }
978: }
979: $alarm_depth++;
980: }
981:
982: sub end_alarm {
983: $alarm_depth--;
984: if ($alarm_depth<1) { alarm(0); }
985: }
986: }
987: my $metamode_was;
988: sub startredirection {
989: if (!$Apache::lonxml::redirection) {
990: $metamode_was=$Apache::lonxml::metamode;
991: }
992: $Apache::lonxml::metamode=0;
993: $Apache::lonxml::redirection++;
994: push (@Apache::lonxml::outputstack, '');
995: }
996:
997: sub endredirection {
998: if (!$Apache::lonxml::redirection) {
999: &Apache::lonxml::error("Endredirection was called before a startredirection, perhaps you have unbalanced tags. Some debugging information:".join ":",caller);
1000: return '';
1001: }
1002: $Apache::lonxml::redirection--;
1003: if (!$Apache::lonxml::redirection) {
1004: $Apache::lonxml::metamode=$metamode_was;
1005: }
1006: pop @Apache::lonxml::outputstack;
1007: }
1008: sub in_redirection {
1009: return ($Apache::lonxml::redirection > 0)
1010: }
1011:
1012: sub end_tag {
1013: my ($tagstack,$parstack,$token)=@_;
1014: pop(@$tagstack);
1015: pop(@$parstack);
1016: &decreasedepth($token);
1017: }
1018:
1019: sub initdepth {
1020: @Apache::lonxml::depthcounter=();
1021: undef($Apache::lonxml::last_depth_count);
1022: }
1023:
1024:
1025: my @timers;
1026: my $lasttime;
1027: # @Apache::lonxml::depthcounter -> count of tags that exist so
1028: # far at each level
1029: # $Apache::lonxml::last_depth_count -> when ascending, need to
1030: # remember the count for the level below the current level (for
1031: # example going from 1_2 -> 1 -> 1_3 need to remember the 2 )
1032:
1033: sub increasedepth {
1034: my ($token) = @_;
1035: push(@Apache::lonxml::depthcounter,$Apache::lonxml::last_depth_count+1);
1036: undef($Apache::lonxml::last_depth_count);
1037: my $time;
1038: if ($Apache::lonxml::debug eq "1") {
1039: push(@timers,[&gettimeofday()]);
1040: $time=&tv_interval($lasttime);
1041: $lasttime=[&gettimeofday()];
1042: }
1043: my $spacing=' 'x($#Apache::lonxml::depthcounter);
1044: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
1045: # &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time");
1046: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1047: }
1048:
1049: sub decreasedepth {
1050: my ($token) = @_;
1051: if ( $#Apache::lonxml::depthcounter == -1) {
1052: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1053: }
1054: $Apache::lonxml::last_depth_count = pop(@Apache::lonxml::depthcounter);
1055:
1056: my ($timer,$time);
1057: if ($Apache::lonxml::debug eq "1") {
1058: $timer=pop(@timers);
1059: $time=&tv_interval($lasttime);
1060: $lasttime=[&gettimeofday()];
1061: }
1062: my $spacing=' 'x($#Apache::lonxml::depthcounter);
1063: $Apache::lonxml::curdepth = join('_',@Apache::lonxml::depthcounter);
1064: # &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time : ".&tv_interval($timer));
1065: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1066: }
1067:
1068: sub get_id {
1069: my ($parstack,$safeeval)=@_;
1070: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1071: if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) {
1072: &error(&mt('ID [_1] contains invalid characters. IDs are only allowed to contain letters, numbers, spaces and -','"<tt>'.$id.'</tt>"'));
1073: }
1074: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1075: return $id;
1076: }
1077:
1078: sub get_all_text_unbalanced {
1079: #there is a copy of this in lonpublisher.pm
1080: my($tag,$pars)= @_;
1081: my $token;
1082: my $result='';
1083: $tag='<'.$tag.'>';
1084: while ($token = $$pars[-1]->get_token) {
1085: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1086: if ($token->[0] eq 'T' && $token->[2]) {
1087: $result.='<![CDATA['.$token->[1].']]>';
1088: } else {
1089: $result.=$token->[1];
1090: }
1091: } elsif ($token->[0] eq 'PI') {
1092: $result.=$token->[2];
1093: } elsif ($token->[0] eq 'S') {
1094: $result.=$token->[4];
1095: } elsif ($token->[0] eq 'E') {
1096: $result.=$token->[2];
1097: }
1098: if ($result =~ /\Q$tag\E/is) {
1099: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
1100: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
1101: #&Apache::lonxml::debug('Result is :'.$1);
1102: $redo=$tag.$redo;
1103: &Apache::lonxml::newparser($pars,\$redo);
1104: last;
1105: }
1106: }
1107: return $result
1108:
1109: }
1110:
1111: #########################################################################
1112: # #
1113: # bubble line counter management #
1114: # #
1115: #########################################################################
1116:
1117: =pod
1118:
1119: For bubble grading mode and exam bubble printing mode, the tracking of
1120: the current 'bubble line number' is stored in the %env element
1121: 'form.counter', and is modifed and handled by the following routines.
1122:
1123: The value of it is stored in $Apache:lonxml::counter when live and
1124: stored back to env after done.
1125:
1126: =item &increment_counter($increment, $part_response);
1127:
1128: Increments the internal counter environment variable a specified amount
1129:
1130: Optional Arguments:
1131: $increment - amount to increment by (defaults to 1)
1132: Also 1 if the value is negative or zero.
1133: $part_response - A concatenation of the part and response id
1134: identifying exactly what is being 'answered'.
1135:
1136:
1137: =cut
1138:
1139: sub increment_counter {
1140: my ($increment, $part_response) = @_;
1141: if ($env{'form.grade_noincrement'}) { return; }
1142: if (!defined($increment) || $increment le 0) {
1143: $increment = 1;
1144: }
1145: $Apache::lonxml::counter += $increment;
1146:
1147: # If the caller supplied the response_id parameter,
1148: # Maintain its counter.. creating if necessary.
1149:
1150: if (defined($part_response)) {
1151: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1152: $Apache::lonxml::counters_per_part{$part_response} = 0;
1153: }
1154: $Apache::lonxml::counters_per_part{$part_response} += $increment;
1155: my $new_value = $Apache::lonxml::counters_per_part{$part_response};
1156: }
1157:
1158: $Apache::lonxml::counter_changed=1;
1159: }
1160:
1161: =pod
1162:
1163: =item &init_counter($increment);
1164:
1165: Initialize the internal counter environment variable
1166:
1167: =cut
1168:
1169: sub init_counter {
1170: if ($env{'request.state'} eq 'construct') {
1171: $Apache::lonxml::counter=1;
1172: $Apache::lonxml::counter_changed=1;
1173: } elsif (defined($env{'form.counter'})) {
1174: $Apache::lonxml::counter=$env{'form.counter'};
1175: $Apache::lonxml::counter_changed=0;
1176: } else {
1177: $Apache::lonxml::counter=1;
1178: $Apache::lonxml::counter_changed=1;
1179: }
1180: }
1181:
1182: sub store_counter {
1183: &Apache::lonnet::appenv({'form.counter' => $Apache::lonxml::counter});
1184: $Apache::lonxml::counter_changed=0;
1185: return '';
1186: }
1187:
1188: {
1189: my $state;
1190: sub clear_problem_counter {
1191: undef($state);
1192: &Apache::lonnet::delenv('form.counter');
1193: &Apache::lonxml::init_counter();
1194: &Apache::lonxml::store_counter();
1195: }
1196:
1197: sub remember_problem_counter {
1198: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1199: $state = $env{'form.counter'};
1200: }
1201:
1202: sub restore_problem_counter {
1203: if (defined($state)) {
1204: &Apache::lonnet::appenv({'form.counter' => $state});
1205: }
1206: }
1207: sub get_problem_counter {
1208: if ($Apache::lonxml::counter_changed) { &store_counter() }
1209: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1210: return $env{'form.counter'};
1211: }
1212: }
1213:
1214: =pod
1215:
1216: =item bubble_lines_for_part(part_response)
1217:
1218: Returns the number of lines required to get a response for
1219: $part_response (this is just $Apache::lonxml::counters_per_part{$part_response}
1220:
1221: =cut
1222:
1223: sub bubble_lines_for_part {
1224: my ($part_response) = @_;
1225:
1226: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1227: return 0;
1228: } else {
1229: return $Apache::lonxml::counters_per_part{$part_response};
1230: }
1231: }
1232:
1233: =pod
1234:
1235: =item clear_bubble_lines_for_part
1236:
1237: Clears the hash of bubble lines per part. If a caller
1238: needs to analyze several resources this should be called between
1239: resources to reset the hash for each problem being analyzed.
1240:
1241: =cut
1242:
1243: sub clear_bubble_lines_for_part {
1244: undef(%Apache::lonxml::counters_per_part);
1245: }
1246:
1247: =pod
1248:
1249: =item set_bubble_lines(part_response, value)
1250:
1251: If there is a problem part, that for whatever reason
1252: requires bubble lines that are not
1253: the same as the counter increment, it can call this sub during
1254: analysis to set its hash value explicitly.
1255:
1256: =cut
1257:
1258: sub set_bubble_lines {
1259: my ($part_response, $value) = @_;
1260:
1261: $Apache::lonxml::counters_per_part{$part_response} = $value;
1262: }
1263:
1264: =pod
1265:
1266: =item get_bubble_line_hash
1267:
1268: Returns the current bubble line hash. This is assumed to
1269: be small so we return a copy
1270:
1271:
1272: =cut
1273:
1274: sub get_bubble_line_hash {
1275: return %Apache::lonxml::counters_per_part;
1276: }
1277:
1278:
1279: #--------------------------------------------------
1280:
1281: sub get_all_text {
1282: my($tag,$pars,$style)= @_;
1283: my $gotfullstack=1;
1284: if (ref($pars) ne 'ARRAY') {
1285: $gotfullstack=0;
1286: $pars=[$pars];
1287: }
1288: if (ref($style) ne 'HASH') {
1289: $style={};
1290: }
1291: my $depth=0;
1292: my $token;
1293: my $result='';
1294: if ( $tag =~ m:^/: ) {
1295: my $tag=substr($tag,1);
1296: #&Apache::lonxml::debug("have:$tag:");
1297: my $top_empty=0;
1298: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
1299: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
1300: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
1301: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1302: if ($token->[2]) {
1303: $result.='<![CDATA['.$token->[1].']]>';
1304: } else {
1305: $result.=$token->[1];
1306: }
1307: } elsif ($token->[0] eq 'PI') {
1308: $result.=$token->[2];
1309: } elsif ($token->[0] eq 'S') {
1310: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
1311: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1312: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1313: $result.=$token->[4];
1314: } elsif ($token->[0] eq 'E') {
1315: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1316: #skip sending back the last end tag
1317: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1318: my $string=
1319: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
1320: $$style{'/'.$token->[1]}.
1321: $token->[2].
1322: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
1323: &Apache::lonxml::newparser($pars,\$string);
1324: #&Apache::lonxml::debug("reParsing $string");
1325: next;
1326: }
1327: if ($depth > -1) {
1328: $result.=$token->[2];
1329: } else {
1330: $$pars[-1]->unget_token($token);
1331: }
1332: }
1333: }
1334: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
1335: if (($depth >=0) && ($#$pars > 0) ) {
1336: pop(@$pars);
1337: pop(@Apache::lonxml::pwd);
1338: }
1339: }
1340: if ($top_empty && $depth >= 0) {
1341: #never found the end tag ran out of text, throw error send back blank
1342: &error('Never found end tag for <'.$tag.
1343: '> current string <pre>'.
1344: &HTML::Entities::encode($result,'<>&"').
1345: '</pre>');
1346: if ($gotfullstack) {
1347: my $newstring='</'.$tag.'>'.$result;
1348: &Apache::lonxml::newparser($pars,\$newstring);
1349: }
1350: $result='';
1351: }
1352: } else {
1353: while ($#$pars > -1) {
1354: while ($token = $$pars[-1]->get_token) {
1355: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
1356: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
1357: ($token->[0] eq 'D')) {
1358: if ($token->[2]) {
1359: $result.='<![CDATA['.$token->[1].']]>';
1360: } else {
1361: $result.=$token->[1];
1362: }
1363: } elsif ($token->[0] eq 'PI') {
1364: $result.=$token->[2];
1365: } elsif ($token->[0] eq 'S') {
1366: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1367: $$pars[-1]->unget_token($token); last;
1368: } else {
1369: $result.=$token->[4];
1370: }
1371: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1372: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1373: } elsif ($token->[0] eq 'E') {
1374: $result.=$token->[2];
1375: }
1376: }
1377: if (($#$pars > 0) ) {
1378: pop(@$pars);
1379: pop(@Apache::lonxml::pwd);
1380: } else { last; }
1381: }
1382: }
1383: #&Apache::lonxml::debug("Exit:$result:");
1384: return $result
1385: }
1386:
1387: sub newparser {
1388: my ($parser,$contentref,$dir) = @_;
1389: push (@$parser,HTML::LCParser->new($contentref));
1390: $$parser[-1]->xml_mode(1);
1391: $$parser[-1]->marked_sections(1);
1392: if ( $dir eq '' ) {
1393: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1394: } else {
1395: push (@Apache::lonxml::pwd, $dir);
1396: }
1397: }
1398:
1399: sub parstring {
1400: my ($token) = @_;
1401: my (@vars,@values);
1402: foreach my $attr (@{$token->[3]}) {
1403: if ($attr!~/\W/) {
1404: my $val=$token->[2]->{$attr};
1405: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1406: $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
1407: $val =~ s/(\$)$/\\$1/;
1408: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1409: push(@vars,"\$$attr");
1410: push(@values,"\"$val\"");
1411: }
1412: }
1413: my $var_init =
1414: (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
1415: : '';
1416: return $var_init;
1417: }
1418:
1419: sub extlink {
1420: my ($res,$exact)=@_;
1421: if (!$exact) {
1422: $res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
1423: }
1424: push(@Apache::lonxml::extlinks,$res)
1425: }
1426:
1427: sub writeallows {
1428: unless ($#extlinks>=0) { return; }
1429: my $thisurl = &Apache::lonnet::clutter(shift);
1430: if ($env{'httpref.'.$thisurl}) {
1431: $thisurl=$env{'httpref.'.$thisurl};
1432: }
1433: my $thisdir=$thisurl;
1434: $thisdir=~s/\/[^\/]+$//;
1435: my %httpref=();
1436: foreach (@extlinks) {
1437: $httpref{'httpref.'.
1438: &Apache::lonnet::hreflocation($thisdir,&unescape($_))}=$thisurl;
1439: }
1440: @extlinks=();
1441: &Apache::lonnet::appenv(\%httpref);
1442: }
1443:
1444: sub register_ssi {
1445: my ($url,%form)=@_;
1446: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1447: return '';
1448: }
1449:
1450: sub do_registered_ssi {
1451: foreach my $info (@Apache::lonxml::ssi_info) {
1452: my %form=%{ $info->{'form'}};
1453: my $url=$info->{'url'};
1454: &Apache::lonnet::ssi($url,%form);
1455: }
1456: }
1457:
1458: sub add_script_result {
1459: my ($display) = @_;
1460: if ($display ne '') {
1461: push(@script_var_displays, $display);
1462: }
1463: }
1464:
1465: #
1466: # Afterburner handles anchors, highlights and links
1467: #
1468: sub afterburn {
1469: my $result=shift;
1470: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1471: ['highlight','anchor','link']);
1472: if ($env{'form.highlight'}) {
1473: foreach (split(/\,/,$env{'form.highlight'})) {
1474: my $anchorname=$_;
1475: my $matchthis=$anchorname;
1476: $matchthis=~s/\_+/\\s\+/g;
1477: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1478: }
1479: }
1480: if ($env{'form.link'}) {
1481: foreach (split(/\,/,$env{'form.link'})) {
1482: my ($anchorname,$linkurl)=split(/\>/,$_);
1483: my $matchthis=$anchorname;
1484: $matchthis=~s/\_+/\\s\+/g;
1485: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1486: }
1487: }
1488: if ($env{'form.anchor'}) {
1489: my $anchorname=$env{'form.anchor'};
1490: my $matchthis=$anchorname;
1491: $matchthis=~s/\_+/\\s\+/g;
1492: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1493: $result.=(<<"ENDSCRIPT");
1494: <script type="text/javascript">
1495: document.location.hash='$anchorname';
1496: </script>
1497: ENDSCRIPT
1498: }
1499: return $result;
1500: }
1501:
1502: sub storefile {
1503: my ($file,$contents)=@_;
1504: &Apache::lonnet::correct_line_ends(\$contents);
1505: if (my $fh=Apache::File->new('>'.$file)) {
1506: print $fh $contents;
1507: $fh->close();
1508: return 1;
1509: } else {
1510: &warning(&mt('Unable to save file [_1]','<tt>'.$file.'</tt>'));
1511: return 0;
1512: }
1513: }
1514:
1515: sub createnewhtml {
1516: my $title=&mt('Title of document goes here');
1517: my $body=&mt('Body of document goes here');
1518: my $filecontents=(<<SIMPLECONTENT);
1519: <html>
1520: <head>
1521: <title>$title</title>
1522: </head>
1523: <body bgcolor="#FFFFFF">
1524: $body
1525: </body>
1526: </html>
1527: SIMPLECONTENT
1528: return $filecontents;
1529: }
1530:
1531: sub createnewsty {
1532: my $filecontents=(<<SIMPLECONTENT);
1533: <definetag name="">
1534: <render>
1535: <web></web>
1536: <tex></tex>
1537: </render>
1538: </definetag>
1539: SIMPLECONTENT
1540: return $filecontents;
1541: }
1542:
1543: sub createnewjs {
1544: my $filecontents=(<<SIMPLECONTENT);
1545: <script type="text/javascript" language="Javascript">
1546:
1547: </script>
1548: SIMPLECONTENT
1549: return $filecontents;
1550: }
1551:
1552: sub verify_html {
1553: my ($filecontents)=@_;
1554: my ($is_html,$is_xml);
1555: if ($filecontents =~/(?:\<|\<\;)\?xml[^\<]*\?(?:\>|\>\;)/is) {
1556: $is_xml = 1;
1557: } elsif ($filecontents =~/(?:\<|\<\;)html(?:\s+[^\<]+|\s*)(?:\>|\>\;)/is) {
1558: $is_html = 1;
1559: }
1560: unless ($is_xml || $is_html) {
1561: return &mt('File does not have [_1] or [_2] starting tag','<html>','<?xml ?>');
1562: }
1563: if ($is_html) {
1564: if ($filecontents!~/(?:\<|\<\;)\/html(?:\>|\>\;)/is) {
1565: return &mt('File does not have [_1] ending tag','<html>');
1566: }
1567: if ($filecontents!~/(?:\<|\<\;)(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
1568: return &mt('File does not have [_1] or [_2] starting tag','<body>','<frameset>');
1569: }
1570: if ($filecontents!~/(?:\<|\<\;)\/(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
1571: return &mt('File does not have [_1] or [_2] ending tag','<body>','<frameset>');
1572: }
1573: }
1574: return '';
1575: }
1576:
1577: sub renderingoptions {
1578: my %langchoices=('' => '');
1579: foreach (&Apache::loncommon::languageids()) {
1580: if (&Apache::loncommon::supportedlanguagecode($_)) {
1581: $langchoices{&Apache::loncommon::supportedlanguagecode($_)}
1582: = &Apache::loncommon::plainlanguagedescription($_);
1583: }
1584: }
1585: my $output;
1586: unless ($env{'form.forceedit'}) {
1587: $output .=
1588: '<span class="LC_nobreak">'.
1589: &mt('Language:').' '.
1590: &Apache::loncommon::select_form(
1591: $env{'form.languages'},
1592: 'languages',
1593: {&Apache::lonlocal::texthash(%langchoices)}).
1594: '</span>';
1595: }
1596: $output .=
1597: ' <span class="LC_nobreak">'.
1598: &mt('Math Rendering:').' '.
1599: &Apache::loncommon::select_form(
1600: $env{'form.texengine'},
1601: 'texengine',
1602: {&Apache::lonlocal::texthash
1603: ('' => '',
1604: 'tth' => 'tth (TeX to HTML)',
1605: 'MathJax' => 'MathJax',
1606: 'jsMath' => 'jsMath',
1607: 'mimetex' => 'mimetex (Convert to Images)')}).
1608: '</span>';
1609: return $output;
1610: }
1611:
1612: sub inserteditinfo {
1613: my ($filecontents,$filetype,$filename,$symb,$itemtitle,$folderpath,$uri,$action) = @_;
1614: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1615: my $xml_help = '';
1616: my $initialize='';
1617: my $textarea_id = 'filecont';
1618: my ($dragmath_button,$deps_button,$context,$cnum,$cdom,$add_to_onload,
1619: $add_to_onresize,$init_dragmath);
1620: $initialize=&Apache::lonhtmlcommon::spellheader();
1621: if ($filetype eq 'html') {
1622: if ($env{'request.course.id'}) {
1623: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1624: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1625: if ($uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E}) {
1626: $context = 'syllabus';
1627: }
1628: }
1629: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1630: my $lang = &Apache::lonhtmlcommon::htmlarea_lang();
1631: my %textarea_args = (
1632: fullpage => 'true',
1633: dragmath => 'math',
1634: );
1635: $initialize .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1636: if ($context eq 'syllabus') {
1637: $init_dragmath = "editmath_visibility('filecont','none')";
1638: }
1639: }
1640: }
1641: $initialize .= (<<FULLPAGE);
1642: <script type="text/javascript">
1643: // <![CDATA[
1644: function initDocument() {
1645: resize_textarea('$textarea_id','LC_aftertextarea');
1646: $init_dragmath
1647: }
1648: // ]]>
1649: </script>
1650: FULLPAGE
1651: my $textareaclass;
1652: if ($filetype eq 'html') {
1653: if ($context eq 'syllabus') {
1654: $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n";
1655: $initialize .=
1656: &Apache::lonhtmlcommon::dependencycheck_js(undef,&mt('Syllabus'),
1657: $uri,undef,
1658: "/public/$cdom/$cnum/syllabus").
1659: "\n";
1660: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1661: $textareaclass = 'class="LC_richDefaultOn"';
1662: }
1663: } elsif ($symb || $folderpath) {
1664: $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n";
1665: $initialize .=
1666: &Apache::lonhtmlcommon::dependencycheck_js($symb,$itemtitle,
1667: undef,$folderpath,$uri)."\n";
1668: }
1669: $dragmath_button = '<span id="math_filecont">'.&Apache::lonhtmlcommon::dragmath_button('filecont',1).'</span>';
1670: $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup');
1671: }
1672: $add_to_onload = 'initDocument();';
1673: $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');";
1674:
1675: if ($filetype eq 'html') {
1676: my $not_author;
1677: if ($uri =~ m{^/uploaded/}) {
1678: $not_author = 1;
1679: }
1680: $xml_help=&Apache::loncommon::helpLatexCheatsheet(undef,undef,$not_author);
1681: }
1682:
1683: my $titledisplay=&display_title();
1684: my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
1685: 'vi' => 'Save and View',
1686: 'dv' => 'Discard Edits and View',
1687: 'un' => 'undo',
1688: 'ed' => 'Edit');
1689: my $spelllink = &Apache::lonhtmlcommon::spelllink('xmledit','filecont');
1690: my $textarea_events = &Apache::edit::element_change_detection();
1691: my $form_events = &Apache::edit::form_change_detection();
1692: my $htmlerror;
1693: if ($filetype eq 'html') {
1694: $htmlerror=&verify_html($filecontents);
1695: if ($htmlerror) {
1696: $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
1697: }
1698: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1699: unless ($textareaclass) {
1700: $textareaclass = 'class="LC_richDefaultOff"';
1701: }
1702: }
1703: }
1704: my $undo;
1705: unless ($uri =~ m{^/uploaded/}) {
1706: $undo = '<input type="submit" name="Undo" accesskey="u" value="'.$lt{'un'}.'" />'."\n";
1707: }
1708: my $editfooter=(<<ENDFOOTER);
1709: $initialize
1710: <a name="editsection" />
1711: <form $form_events method="post" name="xmledit" action="$action">
1712: <div class="LC_edit_problem_editxml_header">
1713: <table class="LC_edit_problem_header_title"><tr><td>
1714: $filename
1715: </td><td align="right">
1716: $xml_help
1717: </td></tr>
1718: </table>
1719: <div class="LC_edit_problem_discards">
1720: <input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
1721: $undo $htmlerror $deps_button $dragmath_button
1722: </div>
1723: <div class="LC_edit_problem_saves">
1724: <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
1725: <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
1726: </div>
1727: </div>
1728: <textarea $textarea_events style="width:100%" cols="80" rows="44" name="filecont" id="filecont" $textareaclass>$filecontents</textarea><br />$spelllink
1729: <div id="LC_aftertextarea">
1730: <br />
1731: $titledisplay
1732: </div>
1733: </form>
1734: ENDFOOTER
1735: return ($editfooter,$add_to_onload,$add_to_onresize);;
1736: }
1737:
1738: sub get_target {
1739: my $viewgrades=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1740: if ( $env{'request.state'} eq 'published') {
1741: if ( defined($env{'form.grade_target'})
1742: && ($viewgrades == 'F' )) {
1743: return ($env{'form.grade_target'});
1744: } elsif (defined($env{'form.grade_target'})) {
1745: if (($env{'form.grade_target'} eq 'web') ||
1746: ($env{'form.grade_target'} eq 'tex') ) {
1747: return $env{'form.grade_target'}
1748: } else {
1749: return 'web';
1750: }
1751: } else {
1752: return 'web';
1753: }
1754: } elsif ($env{'request.state'} eq 'construct') {
1755: if ( defined($env{'form.grade_target'})) {
1756: return ($env{'form.grade_target'});
1757: } else {
1758: return 'web';
1759: }
1760: } else {
1761: return 'web';
1762: }
1763: }
1764:
1765: sub handler {
1766: my $request=shift;
1767:
1768: my $target=&get_target();
1769: $Apache::lonxml::debug=$env{'user.debug'};
1770:
1771: &Apache::loncommon::content_type($request,'text/html');
1772: &Apache::loncommon::no_cache($request);
1773: if ($env{'request.state'} eq 'published') {
1774: $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
1775: 'lastrevisiondate'));
1776: }
1777: # Embedded Flash movies from Camtasia served from https will not display in IE
1778: # if XML config file has expired from cache.
1779: if ($ENV{'SERVER_PORT'} == 443) {
1780: if ($request->uri =~ /\.xml$/) {
1781: my ($httpbrowser,$clientbrowser) =
1782: &Apache::loncommon::decode_user_agent($request);
1783: if ($clientbrowser =~ /^explorer$/i) {
1784: delete $request->headers_out->{'Cache-control'};
1785: delete $request->headers_out->{'Pragma'};
1786: my $expiration = time + 60;
1787: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime($expiration));
1788: $request->headers_out->set("Expires" => $date);
1789: }
1790: }
1791: }
1792: $request->send_http_header;
1793:
1794: return OK if $request->header_only;
1795:
1796:
1797: my $file=&Apache::lonnet::filelocation("",$request->uri);
1798: my ($filetype,$breadcrumbtext);
1799: if ($file =~ /\.(sty|css|js|txt|tex)$/) {
1800: $filetype=$1;
1801: } else {
1802: $filetype='html';
1803: }
1804: unless ($env{'request.uri'}) {
1805: $env{'request.uri'}=$request->uri;
1806: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1807: ['todocs']);
1808: }
1809: my ($cdom,$cnum);
1810: if ($env{'request.course.id'}) {
1811: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1812: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1813: if ($filetype eq 'html') {
1814: if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E.+$}) {
1815: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1816: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1817: ['editmode']);
1818: }
1819: }
1820: }
1821: }
1822: if ($filetype eq 'sty') {
1823: $breadcrumbtext = 'Style File Editor';
1824: } elsif ($filetype eq 'js') {
1825: $breadcrumbtext = 'Javascript Editor';
1826: } elsif ($filetype eq 'css') {
1827: $breadcrumbtext = 'CSS Editor';
1828: } elsif ($filetype eq 'txt') {
1829: $breadcrumbtext = 'Text Editor';
1830: } elsif ($filetype eq 'tex') {
1831: $breadcrumbtext = 'TeX Editor';
1832: } else {
1833: $breadcrumbtext = 'HTML Editor';
1834: }
1835:
1836: #
1837: # Edit action? Save file.
1838: #
1839: if (!($env{'request.state'} eq 'published')) {
1840: if ($env{'form.savethisfile'} || $env{'form.viewmode'} || $env{'form.Undo'}) {
1841: my $html_file=&Apache::lonnet::getfile($file);
1842: my $error = &Apache::lonhomework::handle_save_or_undo($request, \$html_file, \$env{'form.filecont'});
1843: if ($env{'form.savethisfile'}) {
1844: $env{'form.editmode'}='Edit'; #force edit mode
1845: }
1846: }
1847: }
1848: my %mystyle;
1849: my $result = '';
1850: my $filecontents=&Apache::lonnet::getfile($file);
1851: if ($filecontents eq -1) {
1852: my $start_page=&Apache::loncommon::start_page('File Error');
1853: my $end_page=&Apache::loncommon::end_page();
1854: my $errormsg='<p class="LC_error">'
1855: .&mt('File not found: [_1]'
1856: ,'<span class="LC_filename">'.$file.'</span>')
1857: .'</p>';
1858: $result=(<<ENDNOTFOUND);
1859: $start_page
1860: $errormsg
1861: $end_page
1862: ENDNOTFOUND
1863: $filecontents='';
1864: if ($env{'request.state'} ne 'published') {
1865: if ($filetype eq 'sty') {
1866: $filecontents=&createnewsty();
1867: } elsif ($filetype eq 'js') {
1868: $filecontents=&createnewjs();
1869: } elsif ($filetype ne 'css' && $filetype ne 'txt' && $filetype ne 'tex') {
1870: $filecontents=&createnewhtml();
1871: }
1872: $env{'form.editmode'}='Edit'; #force edit mode
1873: }
1874: } else {
1875: unless ($env{'request.state'} eq 'published') {
1876: if ($filecontents=~/BEGIN LON-CAPA Internal/) {
1877: &Apache::lonxml::error(&mt('This file appears to be a rendering of a LON-CAPA resource. If this is correct, this resource will act very oddly and incorrectly.'));
1878: }
1879: #
1880: # we are in construction space, see if edit mode forced
1881: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1882: ['editmode']);
1883: }
1884: if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
1885: if ($filetype eq 'html' || $filetype eq 'sty') {
1886: &Apache::structuretags::reset_problem_globals();
1887: $result = &Apache::lonxml::xmlparse($request,$target,
1888: $filecontents,'',%mystyle);
1889: # .html files may contain <problem> or <Task> need to clean
1890: # up if it did
1891: &Apache::structuretags::reset_problem_globals();
1892: &Apache::lonhomework::finished_parsing();
1893: } elsif ($filetype eq 'tex') {
1894: $result = &Apache::lontexconvert::converted(\$filecontents,
1895: $env{'form.texengine'});
1896: if ($env{'form.return_only_error_and_warning_counts'}) {
1897: $result = "$errorcount:$warningcount";
1898: }
1899: } else {
1900: $result = $filecontents;
1901: }
1902: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1903: ['rawmode']);
1904: if ($env{'form.rawmode'}) { $result = $filecontents; }
1905: if (($filetype ne 'html') &&
1906: (!$env{'form.return_only_error_and_warning_counts'})) {
1907: my $nochgview = 1;
1908: my $controls = '';
1909: if ($env{'request.state'} eq 'construct') {
1910: $controls = &Apache::loncommon::head_subbox(
1911: &Apache::loncommon::CSTR_pageheader()
1912: .&Apache::londefdef::edit_controls($nochgview));
1913: }
1914: if ($filetype ne 'sty' && $filetype ne 'tex') {
1915: $result =~ s/</</g;
1916: $result =~ s/>/>/g;
1917: $result = '<table class="LC_sty_begin">'.
1918: '<tr><td><b><pre>'.$result.
1919: '</pre></b></td></tr></table>';
1920: }
1921: my $brcrum;
1922: if ($env{'request.state'} eq 'construct') {
1923: $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1924: 'text' => 'Authoring Space'},
1925: {'href' => '',
1926: 'text' => $breadcrumbtext}];
1927: } else {
1928: $brcrum = ''; # FIXME: Where are we?
1929: }
1930: my %options = ('bread_crumbs' => $brcrum,
1931: 'bgcolor' => '#FFFFFF');
1932: $result =
1933: &Apache::loncommon::start_page(undef,undef,\%options)
1934: .$controls
1935: .$result
1936: .&Apache::loncommon::end_page();
1937: }
1938: }
1939: }
1940:
1941: #
1942: # Edit action? Insert editing commands
1943: #
1944: unless ($env{'request.state'} eq 'published') {
1945: if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
1946: {
1947: my ($displayfile,$url,$symb,$itemtitle,$action);
1948: $displayfile=$request->uri;
1949: if ($request->uri =~ m{^/uploaded/}) {
1950: if ($env{'request.course.id'}) {
1951: if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/supplemental/\E}) {
1952: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1953: ['folderpath','title']);
1954: } elsif ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E(.+)$}) {
1955: my $filename = $1;
1956: if ($1 eq 'loncapa.html') {
1957: $displayfile = &mt('Syllabus (minimal template)');
1958: $action = $request->uri.'?forceedit=1';
1959: } else {
1960: $displayfile = &mt('Syllabus file: [_1]',$1);
1961: }
1962: $itemtitle = &mt('Syllabus');
1963: }
1964: }
1965: unless ($itemtitle) {
1966: ($symb,$itemtitle,$displayfile) =
1967: &get_courseupload_hierarchy($request->uri,
1968: $env{'form.folderpath'},
1969: $env{'form.title'});
1970: }
1971: } else {
1972: $displayfile=~s/^\/[^\/]*//;
1973: }
1974:
1975: my ($edit_info, $add_to_onload, $add_to_onresize)=
1976: &inserteditinfo($filecontents,$filetype,$displayfile,$symb,
1977: $itemtitle,$env{'form.folderpath'},$request->uri,$action);
1978:
1979: my %options =
1980: ('add_entries' =>
1981: {'onresize' => $add_to_onresize,
1982: 'onload' => $add_to_onload, });
1983: my $header;
1984: if ($env{'request.state'} eq 'construct') {
1985: $options{'bread_crumbs'} = [{
1986: 'href' => &Apache::loncommon::authorspace($request->uri),
1987: 'text' => 'Authoring Space'},
1988: {'href' => '',
1989: 'text' => $breadcrumbtext}];
1990: $header = &Apache::loncommon::head_subbox(
1991: &Apache::loncommon::CSTR_pageheader());
1992: }
1993: my $js =
1994: &Apache::edit::js_change_detection().
1995: &Apache::loncommon::resize_textarea_js();
1996: my $start_page = &Apache::loncommon::start_page(undef,$js,
1997: \%options);
1998: $result = $start_page
1999: .$header
2000: .&Apache::lonxml::message_location()
2001: .$edit_info
2002: .&Apache::loncommon::end_page();
2003: }
2004: }
2005: if ($filetype eq 'html') { &writeallows($request->uri); }
2006:
2007: &Apache::lonxml::add_messages(\$result);
2008: $request->print($result);
2009:
2010: return OK;
2011: }
2012:
2013: sub display_title {
2014: my $result;
2015: if ($env{'request.state'} eq 'construct') {
2016: my $title=&Apache::lonnet::gettitle();
2017: if (!defined($title) || $title eq '') {
2018: $title = $env{'request.filename'};
2019: $title = substr($title, rindex($title, '/') + 1);
2020: }
2021: $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA "
2022: .&mt('Authoring Space')."';</script>";
2023: }
2024: return $result;
2025: }
2026:
2027: sub get_courseupload_hierarchy {
2028: my ($url,$folderpath,$title) = @_;
2029: my ($symb,$itemtitle,$displaypath);
2030: if ($env{'request.course.id'}) {
2031: if ($folderpath =~ /^supplemental/) {
2032: my @folders = split(/\&/,$folderpath);
2033: my @pathitems;
2034: while (@folders) {
2035: my $folder=shift(@folders);
2036: my $foldername=shift(@folders);
2037: $foldername =~ s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//;
2038: push(@pathitems,&unescape($foldername));
2039: }
2040: if ($title) {
2041: push(@pathitems,&unescape($title));
2042: }
2043: $displaypath = join(' » ',@pathitems);
2044: } else {
2045: $symb = &Apache::lonnet::symbread($url);
2046: my ($map,$id,$res)=&Apache::lonnet::decode_symb($symb);
2047: my $navmap=Apache::lonnavmaps::navmap->new;
2048: if (ref($navmap)) {
2049: my $res = $navmap->getBySymb($symb);
2050: if (ref($res)) {
2051: my @pathitems =
2052: &Apache::loncommon::get_folder_hierarchy($navmap,$map,1);
2053: $itemtitle = $res->compTitle();
2054: push(@pathitems,$itemtitle);
2055: $displaypath = join(' » ',@pathitems);
2056: }
2057: }
2058: }
2059: }
2060: return ($symb,$itemtitle,$displaypath);
2061: }
2062:
2063: sub debug {
2064: if ($Apache::lonxml::debug eq "1") {
2065: $|=1;
2066: my $request=$Apache::lonxml::request;
2067: if (!$request) {
2068: eval { $request=Apache->request; };
2069: }
2070: if (!$request) {
2071: eval { $request=Apache2::RequestUtil->request; };
2072: }
2073: $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
2074: #&Apache::lonnet::logthis($_[0]);
2075: }
2076: }
2077:
2078: sub show_error_warn_msg {
2079: if (($env{'request.filename'} eq
2080: $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/lib/templates/simpleproblem.problem') &&
2081: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
2082: return 1;
2083: }
2084: return (($Apache::lonxml::debug eq 1) ||
2085: ($env{'request.state'} eq 'construct') ||
2086: ($Apache::lonhomework::browse eq 'F'
2087: &&
2088: $env{'form.show_errors'} eq 'on'));
2089: }
2090:
2091: sub error {
2092: my @errors = @_;
2093:
2094: $errorcount++;
2095:
2096: $Apache::lonxml::internal_error=1;
2097:
2098: if (defined($Apache::inputtags::part)) {
2099: if ( @Apache::inputtags::response ) {
2100: push(@errors,
2101: &mt("This error occurred while processing response [_1] in part [_2]",
2102: $Apache::inputtags::response[-1],
2103: $Apache::inputtags::part));
2104: } else {
2105: push(@errors,
2106: &mt("This error occurred while processing part [_1]",
2107: $Apache::inputtags::part));
2108: }
2109: }
2110:
2111: if ( &show_error_warn_msg() ) {
2112: # If printing in construction space, put the error inside <pre></pre>
2113: push(@Apache::lonxml::error_messages,
2114: $Apache::lonxml::warnings_error_header
2115: .'<div class="LC_error">'
2116: .'<b>'.&mt('ERROR:').' </b>'.join("<br />\n",@errors)
2117: ."</div>\n");
2118: $Apache::lonxml::warnings_error_header='';
2119: } else {
2120: my $errormsg;
2121: my ($symb)=&Apache::lonnet::symbread();
2122: if ( !$symb ) {
2123: #public or browsers
2124: $errormsg=&mt("An error occurred while processing this resource. The author has been notified.");
2125: }
2126: my $host=$Apache::lonnet::perlvar{'lonHostID'};
2127: push(@errors,
2128: &mt("The error occurred on host [_1]",
2129: "<tt>$host</tt>"));
2130:
2131: my $msg = join('<br />', @errors);
2132:
2133: #notify author
2134: &Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
2135: #notify course
2136: if ( $symb && $env{'request.course.id'} ) {
2137: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2138: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2139: my (undef,%users)=&Apache::lonmsg::decide_receiver(undef,0,1,1,1);
2140: my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
2141: my $baseurl = &Apache::lonnet::clutter($declutter);
2142: my @userlist;
2143: foreach (keys %users) {
2144: my ($user,$domain) = split(/:/, $_);
2145: push(@userlist,"$user:$domain");
2146: my $key=$declutter.'_'.$user.'_'.$domain;
2147: my %lastnotified=&Apache::lonnet::get('nohist_xmlerrornotifications',
2148: [$key],
2149: $cdom,$cnum);
2150: my $now=time;
2151: if ($now-$lastnotified{$key}>86400) {
2152: my $title = &Apache::lonnet::gettitle($symb);
2153: my $sentmessage;
2154: &Apache::lonmsg::user_normal_msg($user,$domain,
2155: "Error [$title]",$msg,'',$baseurl,'','',
2156: \$sentmessage,$symb,$title,1);
2157: &Apache::lonnet::put('nohist_xmlerrornotifications',
2158: {$key => $now},
2159: $cdom,$cnum);
2160: }
2161: }
2162: if ($env{'request.role.adv'}) {
2163: $errormsg=&mt("An error occurred while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
2164: } else {
2165: $errormsg=&mt("An error occurred while processing this resource. The instructor has been notified.");
2166: }
2167: }
2168: push(@Apache::lonxml::error_messages,"<span class=\"LC_warning\">$errormsg</span><br />");
2169: }
2170: }
2171:
2172: sub warning {
2173: $warningcount++;
2174:
2175: if ($env{'form.grade_target'} ne 'tex') {
2176: if ( &show_error_warn_msg() ) {
2177: push(@Apache::lonxml::warning_messages,
2178: $Apache::lonxml::warnings_error_header
2179: .'<div class="LC_warning">'
2180: .&mt('[_1]W[_2]ARNING','<b>','</b>')."<b>:</b> ".join('<br />',@_)
2181: ."</div>\n"
2182: );
2183: $Apache::lonxml::warnings_error_header='';
2184: }
2185: }
2186: }
2187:
2188: sub info {
2189: if ($env{'form.grade_target'} ne 'tex'
2190: && $env{'request.state'} eq 'construct') {
2191: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
2192: }
2193: }
2194:
2195: sub message_location {
2196: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
2197: }
2198:
2199: sub add_messages {
2200: my ($msg)=@_;
2201: my $result=join(' ',
2202: @Apache::lonxml::info_messages,
2203: @Apache::lonxml::error_messages,
2204: @Apache::lonxml::warning_messages);
2205: undef(@Apache::lonxml::info_messages);
2206: undef(@Apache::lonxml::error_messages);
2207: undef(@Apache::lonxml::warning_messages);
2208: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
2209: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
2210: }
2211:
2212: sub get_param {
2213: my ($param,$parstack,$safeeval,$context,$case_insensitive, $noelide) = @_;
2214: if ( ! $context ) { $context = -1; }
2215: my $args ='';
2216: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
2217: if ( ! $Apache::lonxml::usestyle ) {
2218: $args=$Apache::lonxml::style_values.$args;
2219: }
2220:
2221: if ($noelide) {
2222: $args =~ s/'\$/'\\\$/g;
2223: }
2224:
2225: if ( ! $args ) { return undef; }
2226: if ( $case_insensitive ) {
2227: if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
2228: return &Apache::run::run("{$args;".'return $'.$param.'}',
2229: $safeeval); #'
2230: } else {
2231: return undef;
2232: }
2233: } else {
2234: if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
2235: return &Apache::run::run("{$args;".'return $'.$param.'}',
2236: $safeeval); #'
2237: } else {
2238: return undef;
2239: }
2240: }
2241: }
2242:
2243: sub get_param_var {
2244: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
2245: if ( ! $context ) { $context = -1; }
2246: my $args ='';
2247: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
2248: if ( ! $Apache::lonxml::usestyle ) {
2249: $args=$Apache::lonxml::style_values.$args;
2250: }
2251: &Apache::lonxml::debug("Args are $args param is $param");
2252: if ($case_insensitive) {
2253: if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
2254: return undef;
2255: }
2256: } elsif ( $args !~ /my .*\$\Q$param\E[,\)]/ ) { return undef; }
2257: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
2258: &Apache::lonxml::debug("first run is $value");
2259: if ($value =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
2260: &Apache::lonxml::debug("doing second");
2261: my @result=&Apache::run::run("return $value",$safeeval,1);
2262: if (!defined($result[0])) {
2263: return $value
2264: } else {
2265: if (wantarray) { return @result; } else { return $result[0]; }
2266: }
2267: } else {
2268: return $value;
2269: }
2270: }
2271:
2272: sub register_insert_xml {
2273: my $parser = HTML::LCParser->new($Apache::lonnet::perlvar{'lonTabDir'}
2274: .'/insertlist.xml');
2275: my ($tagnum,$in_help)=(0,0);
2276: my @alltags;
2277: my $tag;
2278: while (my $token = $parser->get_token()) {
2279: if ($token->[0] eq 'S') {
2280: my $key;
2281: if ($token->[1] eq 'tag') {
2282: $tag = $token->[2]{'name'};
2283: if (defined($tag)) {
2284: $insertlist{$tagnum.'.tag'} = $tag;
2285: $insertlist{$tag.'.num'} = $tagnum;
2286: push(@alltags,$tag);
2287: }
2288: } elsif ($in_help && $token->[1] eq 'file') {
2289: $key = $tag.'.helpfile';
2290: } elsif ($in_help && $token->[1] eq 'description') {
2291: $key = $tag.'.helpdesc';
2292: } elsif ($token->[1] eq 'description' ||
2293: $token->[1] eq 'color' ||
2294: $token->[1] eq 'show' ) {
2295: $key = $tag.'.'.$token->[1];
2296: } elsif ($token->[1] eq 'insert_sub') {
2297: $key = $tag.'.function';
2298: } elsif ($token->[1] eq 'help') {
2299: $in_help=1;
2300: } elsif ($token->[1] eq 'allow') {
2301: $key = $tag.'.allow';
2302: }
2303: if (defined($key)) {
2304: $insertlist{$key} = $parser->get_text();
2305: $insertlist{$key} =~ s/(^\s*|\s*$ )//gx;
2306: }
2307: } elsif ($token->[0] eq 'E') {
2308: if ($token->[1] eq 'tag') {
2309: undef($tag);
2310: $tagnum++;
2311: } elsif ($token->[1] eq 'help') {
2312: undef($in_help);
2313: }
2314: }
2315: }
2316:
2317: # parse the allows and ignore tags set to <show>no</show>
2318: foreach my $tag (@alltags) {
2319: next if (!exists($insertlist{$tag.'.allow'}));
2320: my $allow = $insertlist{$tag.'.allow'};
2321: foreach my $element (split(',',$allow)) {
2322: $element =~ s/(^\s*|\s*$ )//gx;
2323: if (!exists($insertlist{$element.'.show'})
2324: || $insertlist{$element.'.show'} ne 'no') {
2325: push(@{ $insertlist{$tag.'.which'} },$element);
2326: }
2327: }
2328: }
2329: }
2330:
2331: sub register_insert {
2332: return ®ister_insert_xml(@_);
2333: # &dump_insertlist('2');
2334: }
2335:
2336: sub dump_insertlist {
2337: my ($ext) = @_;
2338: open(XML,">/tmp/insertlist.xml.$ext");
2339: print XML ("<insertlist>");
2340: my $i=0;
2341:
2342: while (exists($insertlist{"$i.tag"})) {
2343: my $tag = $insertlist{"$i.tag"};
2344: print XML ("
2345: \t<tag name=\"$tag\">");
2346: if (defined($insertlist{"$tag.description"})) {
2347: print XML ("
2348: \t\t<description>".$insertlist{"$tag.description"}."</description>");
2349: }
2350: if (defined($insertlist{"$tag.color"})) {
2351: print XML ("
2352: \t\t<color>".$insertlist{"$tag.color"}."</color>");
2353: }
2354: if (defined($insertlist{"$tag.function"})) {
2355: print XML ("
2356: \t\t<insert_sub>".$insertlist{"$tag.function"}."</insert_sub>");
2357: }
2358: if (defined($insertlist{"$tag.show"})
2359: && $insertlist{"$tag.show"} ne 'yes') {
2360: print XML ("
2361: \t\t<show>".$insertlist{"$tag.show"}."</show>");
2362: }
2363: if (defined($insertlist{"$tag.helpfile"})) {
2364: print XML ("
2365: \t\t<help>
2366: \t\t\t<file>".$insertlist{"$tag.helpfile"}."</file>");
2367: if ($insertlist{"$tag.helpdesc"} ne '') {
2368: print XML ("
2369: \t\t\t<description>".$insertlist{"$tag.helpdesc"}."</description>");
2370: }
2371: print XML ("
2372: \t\t</help>");
2373: }
2374: if (defined($insertlist{"$tag.which"})) {
2375: print XML ("
2376: \t\t<allow>".join(',',sort(@{ $insertlist{"$tag.which"} }))."</allow>");
2377: }
2378: print XML ("
2379: \t</tag>");
2380: $i++;
2381: }
2382: print XML ("\n</insertlist>\n");
2383: close(XML);
2384: }
2385:
2386: sub description {
2387: my ($token)=@_;
2388: my $tag = &get_tag($token);
2389: return $insertlist{$tag.'.description'};
2390: }
2391:
2392: # Returns a list containing the help file, and the description
2393: sub helpinfo {
2394: my ($token)=@_;
2395: my $tag = &get_tag($token);
2396: return ($insertlist{$tag.'.helpfile'}, &mt($insertlist{$tag.'.helpdesc'}));
2397: }
2398:
2399: sub get_tag {
2400: my ($token)=@_;
2401: my $tagnum;
2402: my $tag=$token->[1];
2403: foreach my $namespace (reverse(@Apache::lonxml::namespace)) {
2404: my $testtag = $namespace.'::'.$tag;
2405: $tagnum = $insertlist{"$testtag.num"};
2406: last if (defined($tagnum));
2407: }
2408: if (!defined($tagnum)) {
2409: $tagnum = $Apache::lonxml::insertlist{"$tag.num"};
2410: }
2411: return $insertlist{"$tagnum.tag"};
2412: }
2413:
2414: ############################################################
2415: # PDF-FORM-METHODS
2416:
2417: =pod
2418:
2419: =item &print_pdf_radiobutton(fieldname, value)
2420:
2421: Returns a latexline to generate a PDF-Form-Radiobutton.
2422: Note: Radiobuttons with equal names are automaticly grouped
2423: in a selection-group.
2424:
2425: $fieldname: PDF internalname of the radiobutton(group)
2426: $value: Value of radiobutton
2427:
2428: =cut
2429: sub print_pdf_radiobutton {
2430: my ($fieldname, $value) = @_;
2431: return '\radioButton[\symbolchoice{circle}]{'
2432: .$fieldname.'}{10bp}{10bp}{'.$value.'}';
2433: }
2434:
2435:
2436: =pod
2437:
2438: =item &print_pdf_start_combobox(fieldname)
2439:
2440: Starts a latexline to generate a PDF-Form-Combobox with text.
2441:
2442: $fieldname: PDF internal name of the Combobox
2443:
2444: =cut
2445: sub print_pdf_start_combobox {
2446: my $result;
2447: my ($fieldName) = @_;
2448: $result .= '\begin{tabularx}{\textwidth}{p{2.5cm}X}'."\n";
2449: $result .= '\comboBox[]{'.$fieldName.'}{2.3cm}{14bp}{'; #
2450:
2451: return $result;
2452: }
2453:
2454:
2455: =pod
2456:
2457: =item &print_pdf_add_combobox_option(options)
2458:
2459: Generates a latexline to add Options to a PDF-Form-ComboBox.
2460:
2461: $option: PDF internal name of the Combobox-Option
2462:
2463: =cut
2464: sub print_pdf_add_combobox_option {
2465:
2466: my $result;
2467: my ($option) = @_;
2468:
2469: $result .= '('.$option.')';
2470:
2471: return $result;
2472: }
2473:
2474:
2475: =pod
2476:
2477: =item &print_pdf_end_combobox(text) {
2478:
2479: Returns latexcode to end a PDF-Form-Combobox with text.
2480:
2481: =cut
2482: sub print_pdf_end_combobox {
2483: my $result;
2484: my ($text) = @_;
2485:
2486: $result .= '}&'.$text."\\\\\n";
2487: $result .= '\end{tabularx}' . "\n";
2488: $result .= '\hspace{2mm}' . "\n";
2489: return $result;
2490: }
2491:
2492:
2493: =pod
2494:
2495: =item &print_pdf_hiddenField(fieldname, user, domain)
2496:
2497: Returns a latexline to generate a PDF-Form-hiddenField with userdata.
2498:
2499: $fieldname label for hiddentextfield
2500: $user: name of user
2501: $domain: domain of user
2502:
2503: =cut
2504: sub print_pdf_hiddenfield {
2505: my $result;
2506: my ($fieldname, $user, $domain) = @_;
2507:
2508: $result .= '\textField [\F{\FHidden}\F{-\FPrint}\V{'.$domain.'&'.$user.'}]{'.$fieldname.'}{0in}{0in}'."\n";
2509:
2510: return $result;
2511: }
2512:
2513: 1;
2514: __END__
2515:
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