Annotation of loncom/xml/lonxml.pm, revision 1.227
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.227 ! harris41 4: # $Id: lonxml.pm,v 1.226 2003/01/30 22:19:09 albertel Exp $
1.139 www 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: #
1.3 sakharuk 39: # last modified 06/26/00 by Alexander Sakharuk
1.33 www 40: # 11/6 Gerd Kortemeyer
1.45 www 41: # 6/1/1 Gerd Kortemeyer
1.56 albertel 42: # 2/21,3/13 Guy
1.68 www 43: # 3/29,5/4 Gerd Kortemeyer
1.78 www 44: # 5/26 Gerd Kortemeyer
1.80 harris41 45: # 5/27 H. K. Ng
1.89 www 46: # 6/2,6/3,6/8,6/9 Gerd Kortemeyer
1.93 ng 47: # 6/12,6/13 H. K. Ng
1.95 www 48: # 6/16 Gerd Kortemeyer
1.104 ng 49: # 7/27 H. K. Ng
1.127 www 50: # 8/7,8/9,8/10,8/11,8/15,8/16,8/17,8/18,8/20,8/23,8/24 Gerd Kortemeyer
1.130 www 51: # Guy Albertelli
52: # 9/26 Gerd Kortemeyer
1.143 www 53: # Dec Guy Albertelli
54: # YEAR=2002
55: # 1/1 Gerd Kortemeyer
1.145 www 56: # 1/2 Matthew Hall
57: # 1/3 Gerd Kortemeyer
1.143 www 58: #
1.2 sakharuk 59:
1.4 albertel 60: package Apache::lonxml;
1.33 www 61: use vars
1.205 www 62: qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $prevent_entity_encode $errorcount $warningcount);
1.1 sakharuk 63: use strict;
1.167 albertel 64: use HTML::LCParser();
1.161 albertel 65: use HTML::TreeBuilder();
66: use HTML::Entities();
67: use Safe();
68: use Safe::Hole();
69: use Math::Cephes();
70: use Math::Random();
71: use Opcode();
1.72 albertel 72:
73: sub register {
1.141 albertel 74: my ($space,@taglist) = @_;
75: foreach my $temptag (@taglist) {
76: push(@{ $Apache::lonxml::alltags{$temptag} },$space);
1.72 albertel 77: }
78: }
79:
1.141 albertel 80: sub deregister {
81: my ($space,@taglist) = @_;
82: foreach my $temptag (@taglist) {
83: my $tempspace = $Apache::lonxml::alltags{$temptag}[-1];
84: if ($tempspace eq $space) {
85: pop(@{ $Apache::lonxml::alltags{$temptag} });
86: }
87: }
1.142 albertel 88: #&printalltags();
1.141 albertel 89: }
90:
1.46 www 91: use Apache::Constants qw(:common);
1.161 albertel 92: use Apache::lontexconvert();
93: use Apache::style();
94: use Apache::run();
95: use Apache::londefdef();
96: use Apache::scripttag();
97: use Apache::edit();
98: use Apache::lonnet();
99: use Apache::File();
100: use Apache::loncommon();
1.198 www 101: use Apache::lonfeedback();
1.200 www 102: use Apache::lonmsg();
1.217 matthew 103: use Apache::loncacc();
1.79 www 104:
1.72 albertel 105: #================================================== Main subroutine: xmlparse
106: #debugging control, to turn on debugging modify the correct handler
107: $Apache::lonxml::debug=0;
1.206 albertel 108:
109: # keeps count of the number of warnings and errors generated in a parse
110: $warningcount=0;
111: $errorcount=0;
1.72 albertel 112:
113: #path to the directory containing the file currently being processed
114: @pwd=();
115:
116: #these two are used for capturing a subset of the output for later processing,
117: #don't touch them directly use &startredirection and &endredirection
118: @outputstack = ();
119: $redirection = 0;
120:
121: #controls wheter the <import> tag actually does
122: $import = 1;
123: @extlinks=();
124:
125: # meta mode is a bit weird only some output is to be turned off
126: #<output> tag turns metamode off (defined in londefdef.pm)
127: $metamode = 0;
128:
129: # turns on and of run::evaluate actually derefencing var refs
130: $evaluate = 1;
1.7 albertel 131:
1.74 albertel 132: # data structure for eidt mode, determines what tags can go into what other tags
133: %insertlist=();
1.68 www 134:
1.99 albertel 135: # stores the list of active tag namespaces
1.76 albertel 136: @namespace=();
137:
1.169 albertel 138: # if 0 all high ASCII characters will be encoded into HTML Entities
139: $prevent_entity_encode=0;
140:
1.99 albertel 141: # has the dynamic menu been updated to know about this resource
142: $Apache::lonxml::registered=0;
143:
1.172 albertel 144: # a pointer the the Apache request object
145: $Apache::lonxml::request='';
146:
1.216 sakharuk 147: # a problem number counter, and check on ether it is used
148: $Apache::lonxml::counter=1;
1.204 albertel 149: $Apache::lonxml::counter_changed=0;
150:
1.212 albertel 151: #internal check on whether to look at style defs
152: $Apache::lonxml::usestyle=1;
153:
1.68 www 154: sub xmlbegin {
155: my $output='';
156: if ($ENV{'browser.mathml'}) {
157: $output='<?xml version="1.0"?>'
158: .'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'
159: .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
160: .'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>'
161: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
162: .'xmlns="http://www.w3.org/TR/REC-html40">';
163: } else {
164: $output='<html>';
165: }
166: return $output;
167: }
168:
169: sub xmlend {
1.194 www 170: my ($discussiononly,$symb)=@_;
1.103 www 171: my $discussion='';
172: if ($ENV{'request.course.id'}) {
1.109 www 173: my $crs='/'.$ENV{'request.course.id'};
174: if ($ENV{'request.course.sec'}) {
175: $crs.='_'.$ENV{'request.course.sec'};
176: }
177: $crs=~s/\_/\//g;
178: my $seeid=&Apache::lonnet::allowed('rin',$crs);
1.194 www 179: unless ($symb) {
180: $symb=&Apache::lonnet::symbread();
181: }
1.103 www 182: if ($symb) {
183: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
184: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
185: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
186: if ($contrib{'version'}) {
1.194 www 187: unless ($discussiononly) {
188: $discussion.=
189: '<address><hr />';
190: }
1.103 www 191: my $idx;
192: for ($idx=1;$idx<=$contrib{'version'};$idx++) {
1.110 www 193: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
1.222 www 194: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
195: unless ((($hidden) && (!$seeid)) || ($deleted)) {
1.110 www 196: my $message=$contrib{$idx.':message'};
197: $message=~s/\n/\<br \/\>/g;
1.186 www 198: $message=&Apache::lontexconvert::msgtexconverted($message);
1.110 www 199: if ($message) {
200: if ($hidden) {
201: $message='<font color="#888888">'.$message.'</font>';
202: }
1.196 www 203: my $screenname=&Apache::loncommon::screenname(
204: $contrib{$idx.':sendername'},
205: $contrib{$idx.':senderdomain'});
206: my $plainname=&Apache::loncommon::nickname(
207: $contrib{$idx.':sendername'},
208: $contrib{$idx.':senderdomain'});
209:
1.109 www 210: my $sender='Anonymous';
211: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
1.194 www 212: $sender=&Apache::loncommon::aboutmewrapper(
1.196 www 213: $plainname,
1.194 www 214: $contrib{$idx.':sendername'},
215: $contrib{$idx.':senderdomain'}).' ('.
1.164 www 216: $contrib{$idx.':sendername'}.' at '.
217: $contrib{$idx.':senderdomain'}.')';
1.109 www 218: if ($contrib{$idx.':anonymous'}) {
1.164 www 219: $sender.=' [anonymous] '.
1.196 www 220: $screenname;
1.110 www 221: }
222: if ($seeid) {
223: if ($hidden) {
224: $sender.=' <a href="/adm/feedback?unhide='.
225: $symb.':::'.$idx.'">Make Visible</a>';
226: } else {
227: $sender.=' <a href="/adm/feedback?hide='.
228: $symb.':::'.$idx.'">Hide</a>';
1.222 www 229: }
230: $sender.=' <a href="/adm/feedback?deldisc='.
231: $symb.':::'.$idx.'">Delete</a>';
232: }
1.164 www 233: } else {
1.196 www 234: if ($screenname) {
235: $sender='<i>'.$screenname.'</i>';
1.164 www 236: }
1.109 www 237: }
238: $discussion.='<p><b>'.$sender.'</b> ('.
1.103 www 239: localtime($contrib{$idx.':timestamp'}).
240: '):<blockquote>'.$message.
1.110 www 241: '</blockquote></p>';
242: }
243: }
1.103 www 244: }
1.194 www 245: unless ($discussiononly) {
246: $discussion.='</address>';
247: }
248: }
249: if ($discussiononly) {
1.195 www 250: $discussion.=(<<ENDDISCUSS);
1.198 www 251: <form action="/adm/feedback" method="post" name="mailform">
1.195 www 252: <input type="submit" name="discuss" value="Post Discussion" />
253: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
254: <input type="hidden" name="symb" value="$symb" />
255: <input type="hidden" name="sendit" value="true" />
256: <br />
257: <font size="1">Note: in anonymous discussion, your name is visible only to
258: course faculty</font><br />
259: <textarea name=comment cols=60 rows=10 wrap=hard></textarea>
260: </form>
261: ENDDISCUSS
1.198 www 262: $discussion.=&Apache::lonfeedback::generate_preview_button();
1.103 www 263: }
264: }
265: }
1.194 www 266: return $discussion.($discussiononly?'':'</html>');
1.119 www 267: }
268:
269: sub tokeninputfield {
1.120 www 270: my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
271: $defhost=~tr/a-z/A-Z/;
1.119 www 272: return (<<ENDINPUTFIELD)
1.226 albertel 273: <script type="text/javascript">
1.120 www 274: function updatetoken() {
275: var comp=new Array;
276: var barcode=unescape(document.tokeninput.barcode.value);
277: comp=barcode.split('*');
278: if (typeof(comp[0])!="undefined") {
279: document.tokeninput.codeone.value=comp[0];
280: }
281: if (typeof(comp[1])!="undefined") {
282: document.tokeninput.codetwo.value=comp[1];
283: }
284: if (typeof(comp[2])!="undefined") {
285: comp[2]=comp[2].toUpperCase();
286: document.tokeninput.codethree.value=comp[2];
287: }
288: document.tokeninput.barcode.value='';
289: }
290: </script>
291: <form method="post" name="tokeninput">
1.119 www 292: <table border="2" bgcolor="#FFFFBB">
293: <tr><th>DocID Checkin</th></tr>
294: <tr><td>
295: <table>
296: <tr>
297: <td>Scan in Barcode</td>
1.120 www 298: <td><input type="text" size="22" name="barcode"
299: onChange="updatetoken()"/></td>
1.119 www 300: </tr>
301: <tr><td><i>or</i> Type in DocID</td>
302: <td>
303: <input type="text" size="5" name="codeone" />
1.120 www 304: <b><font size="+2">*</font></b>
1.119 www 305: <input type="text" size="5" name="codetwo" />
1.120 www 306: <b><font size="+2">*</font></b>
307: <input type="text" size="10" name="codethree" value="$defhost"
308: onChange="this.value=this.value.toUpperCase()" />
1.119 www 309: </td></tr>
310: </table>
311: </td></tr>
312: <tr><td><input type="submit" value="Check in DocID" /></td></tr>
313: </table>
314: </form>
315: ENDINPUTFIELD
1.112 www 316: }
317:
1.116 www 318: sub maketoken {
1.118 www 319: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1.112 www 320: unless ($symb) {
321: $symb=&Apache::lonnet::symbread();
322: }
323: unless ($tuname) {
324: $tuname=$ENV{'user.name'};
325: $tudom=$ENV{'user.domain'};
326: $tcrsid=$ENV{'request.course.id'};
327: }
1.116 www 328:
1.118 www 329: return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
330: }
331:
332: sub printtokenheader {
1.133 albertel 333: my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
1.116 www 334: unless ($token) { return ''; }
1.118 www 335:
1.133 albertel 336: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
337: unless ($tsymb) {
338: $tsymb=$symb;
1.118 www 339: }
340: unless ($tuname) {
1.133 albertel 341: $tuname=$name;
342: $tudom=$domain;
343: $tcrsid=$courseid;
1.118 www 344: }
1.114 www 345:
346: my %reply=&Apache::lonnet::get('environment',
347: ['firstname','middlename','lastname','generation'],
348: $tudom,$tuname);
349: my $plainname=$reply{'firstname'}.' '.
350: $reply{'middlename'}.' '.
351: $reply{'lastname'}.' '.
352: $reply{'generation'};
353:
1.112 www 354: if ($target eq 'web') {
1.145 www 355: my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
1.115 www 356: return
1.221 albertel 357: '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
1.115 www 358: 'Checked out for '.$plainname.
1.114 www 359: '<br />User: '.$tuname.' at '.$tudom.
1.145 www 360: '<br />ID: '.$idhash{$tuname}.
1.117 www 361: '<br />CourseID: '.$tcrsid.
1.145 www 362: '<br />Course: '.$ENV{'course.'.$tcrsid.'.description'}.
1.114 www 363: '<br />DocID: '.$token.
1.116 www 364: '<br />Time: '.localtime().'<hr />';
1.112 www 365: } else {
1.121 albertel 366: return $token;
1.112 www 367: }
1.68 www 368: }
369:
1.70 www 370: sub fontsettings() {
371: my $headerstring='';
372: if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
373: $headerstring.=
374: '<meta Content-Type="text/html; charset=x-mac-roman">';
375: }
376: return $headerstring;
377: }
378:
1.217 matthew 379:
380: ##
381: ## switchmenu - modeled on lonmenu::switchmenu, but better.
382: ## Helper function for registerurl
383: ##
384: sub switchmenu {
385: my ($row,$col,$imgsrc,$texttop,$textbot,$action,$description)=@_;
386: return(<<ENDSMENU);
387: menu.switchbutton($row,$col,'$imgsrc','$texttop','$textbot','$action','$description');
388: ENDSMENU
389: }
390:
1.68 www 391: sub registerurl {
1.100 www 392: my $forcereg=shift;
1.155 matthew 393: my $target = shift;
394: my $result = '';
1.197 sakharuk 395:
1.179 matthew 396: if ($target eq 'edit') {
1.226 albertel 397: $result .="<script type=\"text/javascrtipt\">\n".
1.187 matthew 398: "if (typeof menu != 'undefined') {menu.currentURL=null;}\n".
1.179 matthew 399: &Apache::loncommon::browser_and_searcher_javascript().
400: "\n</script>\n";
401: }
1.176 www 402: if ((($ENV{'request.publicaccess'}) ||
403: (!&Apache::lonnet::is_on_map($ENV{'REQUEST_URI'}))) &&
404: (!$forcereg)) {
1.179 matthew 405: return $result.
1.226 albertel 406: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>';
1.130 www 407: }
1.128 albertel 408: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
1.105 albertel 409: $Apache::lonxml::registered=1;
1.225 www 410: my $reopen=&Apache::lonmenu::reopenmenu();
1.200 www 411: my $newmail='';
412: if (&Apache::lonmsg::newmail()) {
1.201 www 413: $newmail='menu.setstatus("you have","messages");';
1.200 www 414: }
1.181 www 415: my $timesync='menu.syncclock(1000*'.time.');';
1.100 www 416: if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
1.87 www 417: my $hwkadd='';
1.168 albertel 418: if ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1.87 www 419: if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
420: $hwkadd.=(<<ENDSUBM);
1.214 www 421: menu.switchbutton(7,1,'subm.gif','view sub','missions','gocmd("/adm/grades","submission")',
422: 'View user submissions for this assessment resource');
1.87 www 423: ENDSUBM
424: }
425: if (&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})) {
426: $hwkadd.=(<<ENDGRDS);
1.214 www 427: menu.switchbutton(7,2,'pgrd.gif','problem','grades','gocmd("/adm/grades","gradingmenu")',
428: 'Modify user grades for this assessment resource');
1.87 www 429: ENDGRDS
430: }
431: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
432: $hwkadd.=(<<ENDPARM);
1.214 www 433: menu.switchbutton(7,3,'pparm.gif','problem','parms','gocmd("/adm/parmset","set")',
434: 'Modify deadlines, etc, for this assessment resource');
1.87 www 435: ENDPARM
436: }
437: }
1.217 matthew 438: ###
439: ### Determine whether or not to display the 'cstr' button for this
440: ### resource
441: ###
442: my $editbutton = '';
443: if ($ENV{'user.author'}) {
444: if ($ENV{'request.role'}=~/^(ca|au)/) {
445: # Set defaults for authors
446: my ($top,$bottom) = ('con-','struct');
447: my $action = "go('/priv/".$ENV{'user.name'}."');";
448: my $cadom = $ENV{'request.role.domain'};
449: my $caname = $ENV{'user.name'};
450: my $desc = "Enter my resource construction space";
451: # Set defaults for co-authors
452: if ($ENV{'request.role'} =~ /^ca/) {
453: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
454: ($top,$bottom) = ('co con-','struct');
455: $action = 'go("/priv/'.$caname.'");';
456: $desc = "Enter construction space as co-author";
457: }
458: # Check that we are on the correct machine
459: my $home = &Apache::lonnet::homeserver($caname,$cadom);
460: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
461: $editbutton=&switchmenu
462: (6,1,$top,,$bottom,$action,$desc);
463: }
464: }
465: ##
466: ## Determine if user can edit url.
467: ##
468: my $cfile='';
469: my $cfuname='';
470: my $cfudom='';
471: if ($ENV{'request.filename'}) {
472: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
473: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
474: # Chech that the user has permission to edit this resource
475: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
476: if (defined($cfudom)) {
477: if (&Apache::lonnet::homeserver($cfuname,$cfudom)
478: eq $Apache::lonnet::perlvar{'lonHostID'}) {
479: $cfile=$file;
480: }
481: }
482: }
483: # Finally, turn the button on or off
484: if ($cfile) {
485: $editbutton=&switchmenu
486: (6,1,'cstr.gif','edit','resource',
487: 'go("'.$cfile.'");',"Edit this resource");
488: } elsif ($editbutton eq '') {
489: $editbutton = ' menu.clearbut(6,1);';
490: }
491: }
492: ###
493: ###
1.155 matthew 494: $result = (<<ENDREGTHIS);
1.87 www 495:
1.68 www 496: <script language="JavaScript">
1.71 www 497: // BEGIN LON-CAPA Internal
1.86 www 498:
1.69 www 499: function LONCAPAreg() {
1.225 www 500: menu=$reopen;
1.86 www 501: menu.clearTimeout(menu.menucltim);
1.174 www 502: $timesync
1.200 www 503: $newmail
1.69 www 504: menu.currentURL=window.location.pathname;
1.175 www 505: menu.reloadURL=window.location.pathname;
1.214 www 506: menu.currentSymb="$ENV{'request.symb'}";
507: menu.reloadSymb="$ENV{'request.symb'}";
1.69 www 508: menu.currentStale=0;
1.85 www 509: menu.clearbut(3,1);
510: menu.switchbutton
1.225 www 511: (6,3,'catalog.gif','catalog','info','catalog_info()','Show catalog information');
1.108 www 512: menu.switchbutton
1.214 www 513: (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)','Provide my evaluation of this resource');
1.85 www 514: menu.switchbutton
1.214 www 515: (8,2,'fdbk.gif','feedback','discuss','gopost("/adm/feedback",currentURL)','Provide feedback messages or contribute to the course discussion about this resource');
1.85 www 516: menu.switchbutton
1.214 www 517: (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)','Prepare a printable document');
1.85 www 518: menu.switchbutton
1.214 www 519: (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)','Go to the previous resource in the course sequence');
1.85 www 520: menu.switchbutton
1.214 www 521: (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)','Go to the next resource in the course sequence');
1.94 www 522: menu.switchbutton
1.214 www 523: (9,1,'sbkm.gif','set','bookmark','set_bookmark()','Set a bookmark for this resource');
1.94 www 524: menu.switchbutton
1.214 www 525: (9,2,'vbkm.gif','view','bookmark','edit_bookmarks()','Use or edit my bookmark collection');
1.94 www 526: menu.switchbutton
1.214 www 527: (9,3,'anot.gif','anno-','tations','annotate()','Make notes and annotations about this resource');
1.87 www 528: $hwkadd
1.217 matthew 529: $editbutton
1.69 www 530: }
1.86 www 531:
1.69 www 532: function LONCAPAstale() {
1.225 www 533: menu=$reopen
1.86 www 534: menu.currentStale=1;
1.175 www 535: if (menu.reloadURL!='' && menu.reloadURL!= null) {
536: menu.switchbutton
1.214 www 537: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
1.175 www 538: }
1.127 www 539: menu.clearbut(7,1);
540: menu.clearbut(7,2);
541: menu.clearbut(7,3);
1.86 www 542: menu.menucltim=menu.setTimeout(
1.94 www 543: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
1.219 matthew 544: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
1.86 www 545: 2000);
546:
1.87 www 547: }
1.86 www 548:
549: // END LON-CAPA Internal
550: </script>
551: ENDREGTHIS
552:
553: } else {
1.155 matthew 554: $result = (<<ENDDONOTREGTHIS);
1.86 www 555:
556: <script language="JavaScript">
557: // BEGIN LON-CAPA Internal
558:
559: function LONCAPAreg() {
1.225 www 560: menu=$reopen
1.174 www 561: $timesync
1.69 www 562: menu.currentStale=1;
1.85 www 563: menu.clearbut(2,1);
564: menu.clearbut(2,3);
565: menu.clearbut(8,1);
566: menu.clearbut(8,2);
567: menu.clearbut(8,3);
1.86 www 568: if (menu.currentURL) {
569: menu.switchbutton
570: (3,1,'reload.gif','return','location','go(currentURL)');
571: } else {
572: menu.clearbut(3,1);
573: }
574: }
575:
576: function LONCAPAstale() {
1.68 www 577: }
1.86 www 578:
1.71 www 579: // END LON-CAPA Internal
1.68 www 580: </script>
1.86 www 581: ENDDONOTREGTHIS
1.155 matthew 582: }
583: return $result;
1.69 www 584: }
585:
586: sub loadevents() {
587: return 'LONCAPAreg();';
588: }
589:
590: sub unloadevents() {
591: return 'LONCAPAstale();';
1.68 www 592: }
593:
1.48 albertel 594: sub printalltags {
595: my $temp;
596: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.141 albertel 597: &Apache::lonxml::debug("$temp -- ".
598: join(',',@{ $Apache::lonxml::alltags{$temp} }));
1.48 albertel 599: }
600: }
1.31 sakharuk 601:
1.3 sakharuk 602: sub xmlparse {
1.172 albertel 603: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 604:
1.172 albertel 605: &setup_globals($request,$target);
1.178 www 606: #
607: # do we have a course style file?
608: #
609:
1.208 albertel 610: if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') {
1.178 www 611: my $bodytext=
612: $ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'};
613: if ($bodytext) {
614: my $location=&Apache::lonnet::filelocation('',$bodytext);
615: my $styletext=&Apache::lonnet::getfile($location);
616: if ($styletext ne '-1') {
617: %style_for_target = (%style_for_target,
618: &Apache::style::styleparser($target,$styletext));
619: }
620: }
621: }
622:
1.48 albertel 623: #&printalltags();
1.16 albertel 624: my @pars = ();
1.23 albertel 625: my $pwd=$ENV{'request.filename'};
626: $pwd =~ s:/[^/]*$::;
627: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 628:
1.3 sakharuk 629: my $safeeval = new Safe;
1.40 albertel 630: my $safehole = new Safe::Hole;
1.82 ng 631: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 632: #-------------------- Redefinition of the target in the case of compound target
633:
634: ($target, my @tenta) = split('&&',$target);
635:
1.150 albertel 636: my @stack = ();
1.3 sakharuk 637: my @parstack = ();
1.17 albertel 638: &initdepth;
1.67 www 639:
1.101 albertel 640: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
641: $safeeval,\%style_for_target);
1.125 www 642: if ($ENV{'request.uri'}) {
643: &writeallows($ENV{'request.uri'});
644: }
1.204 albertel 645: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.3 sakharuk 646: return $finaloutput;
1.106 www 647: }
648:
649: sub htmlclean {
1.107 www 650: my ($raw,$full)=@_;
1.106 www 651:
652: my $tree = HTML::TreeBuilder->new;
653: $tree->ignore_unknown(0);
1.140 albertel 654:
1.106 www 655: $tree->parse($raw);
656:
1.107 www 657: my $output= $tree->as_HTML(undef,' ');
1.140 albertel 658:
1.161 albertel 659: $output=~s/\<(br|hr|img|meta|allow)(.*?)\>/\<$1$2 \/\>/gis;
1.111 www 660: $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
1.107 www 661: unless ($full) {
662: $output=~s/\<[\/]*(body|head|html)\>//gis;
663: }
1.106 www 664:
665: $tree = $tree->delete;
666:
667: return $output;
1.15 albertel 668: }
669:
1.191 albertel 670: sub latex_special_symbols {
1.188 sakharuk 671: my ($current_token,$stack,$parstack)=@_;
1.216 sakharuk 672: $current_token=~s/\\ /\\char92 /g;
1.192 albertel 673: $current_token=~s/\^/\\char94 /g;
674: $current_token=~s/\~/\\char126 /g;
1.197 sakharuk 675: $current_token=~s/(&[^a-z\#])/\\$1/g;
1.203 sakharuk 676: $current_token=~s/([^&])\#/$1\\#/g;
1.192 albertel 677: $current_token=~s/(\$|_|{|})/\\$1/g;
678: $current_token=~s/\\char92 /\\texttt{\\char92}/g;
679: $current_token=~s/>/\$>\$/g; #more
680: $current_token=~s/</\$<\$/g; #less
681: if ($current_token=~m/\d%/) {$current_token =~ s/(\d)%/$1\\%/g;} #percent after digit
682: if ($current_token=~m/\s%/) {$current_token =~ s/(\s)%/$1\\%/g;} #persent after space
1.188 sakharuk 683: return $current_token;
684: }
685:
1.101 albertel 686: sub inner_xmlparse {
687: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
688: my $finaloutput = '';
689: my $result;
690: my $token;
691: while ( $#$pars > -1 ) {
692: while ($token = $$pars['-1']->get_token) {
693: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
694: if ($metamode<1) {
1.190 albertel 695: my $text=$token->[1];
1.193 albertel 696: if ($token->[0] eq 'C' && $target eq 'tex') {
1.216 sakharuk 697: $text = '%'.$text."\n";
1.182 sakharuk 698: }
1.190 albertel 699: $result.=$text;
1.101 albertel 700: }
701: } elsif ($token->[0] eq 'PI') {
702: if ($metamode<1) {
703: $result=$token->[2];
704: }
705: } elsif ($token->[0] eq 'S') {
1.140 albertel 706: # add tag to stack
1.101 albertel 707: push (@$stack,$token->[1]);
708: # add parameters list to another stack
709: push (@$parstack,&parstring($token));
1.140 albertel 710: &increasedepth($token);
1.212 albertel 711: if ($Apache::lonxml::usestyle &&
712: exists($$style_for_target{$token->[1]})) {
713: $Apache::lonxml::usestyle=0;
714: my $string=$$style_for_target{$token->[1]}.
715: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
716: &Apache::lonxml::newparser($pars,\$string);
1.101 albertel 717: } else {
718: $result = &callsub("start_$token->[1]", $target, $token, $stack,
719: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 720: }
1.101 albertel 721: } elsif ($token->[0] eq 'E') {
722: #clear out any tags that didn't end
723: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
1.150 albertel 724: my $lasttag=$$stack[-1];
725: if ($token->[1] =~ /^$lasttag$/i) {
726: &Apache::lonxml::warning('Using tag </'.$token->[1].'> as end tag to <'.$$stack[-1].'>');
727: last;
728: } else {
1.152 albertel 729: &Apache::lonxml::warning('Found tag </'.$token->[1].'> when looking for </'.$$stack[-1].'> in file');
1.150 albertel 730: &end_tag($stack,$parstack,$token);
731: }
1.101 albertel 732: }
1.140 albertel 733:
1.212 albertel 734: if ($Apache::lonxml::usestyle &&
735: exists($$style_for_target{'/'."$token->[1]"})) {
736: $Apache::lonxml::usestyle=0;
737: my $string=$$style_for_target{'/'.$token->[1]}.
738: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
739: &Apache::lonxml::newparser($pars,\$string);
1.101 albertel 740: } else {
741: $result = &callsub("end_$token->[1]", $target, $token, $stack,
742: $parstack, $pars,$safeeval, $style_for_target);
743: }
744: } else {
745: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
746: }
747: #evaluate variable refs in result
748: if ($result ne "") {
749: if ( $#$parstack > -1 ) {
1.169 albertel 750: $result=&Apache::run::evaluate($result,$safeeval,$$parstack[-1]);
1.101 albertel 751: } else {
1.169 albertel 752: $result= &Apache::run::evaluate($result,$safeeval,'');
1.101 albertel 753: }
1.163 albertel 754: }
1.190 albertel 755: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
756: if ($target eq 'tex') {
1.191 albertel 757: $result=&latex_special_symbols($result,$stack,$parstack);
1.190 albertel 758: }
759: }
760:
1.169 albertel 761: # Encode any high ASCII characters
762: if (!$Apache::lonxml::prevent_entity_encode) {
763: $result=&HTML::Entities::encode($result,"\200-\377");
764: }
765: if ($Apache::lonxml::redirection) {
766: $Apache::lonxml::outputstack['-1'] .= $result;
767: } else {
768: $finaloutput.=$result;
769: }
770: $result = '';
771:
1.101 albertel 772: if ($token->[0] eq 'E') {
773: &end_tag($stack,$parstack,$token);
774: }
1.224 albertel 775: }
1.212 albertel 776: if ($#$pars > -1) {
777: pop @$pars;
778: pop @Apache::lonxml::pwd;
779: }
1.101 albertel 780: }
781:
782: # if ($target eq 'meta') {
783: # $finaloutput.=&endredirection;
784: # }
785:
1.169 albertel 786:
1.101 albertel 787: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
788: $finaloutput=&afterburn($finaloutput);
1.216 sakharuk 789: }
1.101 albertel 790: return $finaloutput;
791: }
1.67 www 792:
1.7 albertel 793: sub callsub {
1.84 albertel 794: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 795: my $currentstring='';
1.72 albertel 796: my $nodefault;
1.7 albertel 797: {
1.59 albertel 798: my $sub1;
1.7 albertel 799: no strict 'refs';
1.68 www 800: my $tag=$token->[1];
1.141 albertel 801: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 802: if (!$space) {
1.141 albertel 803: $tag=~tr/A-Z/a-z/;
1.68 www 804: $sub=~tr/A-Z/a-z/;
1.141 albertel 805: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 806: }
1.97 albertel 807:
808: my $deleted=0;
809: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
810: if (($token->[0] eq 'S') && ($target eq 'modified')) {
811: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
812: $parstack,$parser,$safeeval,
813: $style);
814: }
815: if (!$deleted) {
816: if ($space) {
1.220 albertel 817: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 818: $sub1="$space\:\:$sub";
819: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
820: $parstack,$parser,$safeeval,
821: $style);
822: } else {
1.220 albertel 823: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 824: if ($metamode <1) {
825: if (defined($token->[4]) && ($metamode < 1)) {
826: $currentstring = $token->[4];
827: } else {
828: $currentstring = $token->[2];
829: }
1.62 sakharuk 830: }
1.7 albertel 831: }
1.97 albertel 832: # &Apache::lonxml::debug("nodefalt:$nodefault:");
833: if ($currentstring eq '' && $nodefault eq '') {
834: if ($target eq 'edit') {
1.220 albertel 835: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 836: if ($token->[0] eq 'S') {
837: $currentstring = &Apache::edit::tag_start($target,$token);
838: } elsif ($token->[0] eq 'E') {
839: $currentstring = &Apache::edit::tag_end($target,$token);
840: }
841: } elsif ($target eq 'modified') {
842: if ($token->[0] eq 'S') {
843: $currentstring = $token->[4];
844: $currentstring.=&Apache::edit::handle_insert();
1.210 www 845: } elsif ($token->[0] eq 'E') {
846: $currentstring = $token->[2];
847: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 848: } else {
849: $currentstring = $token->[2];
850: }
1.72 albertel 851: }
852: }
1.7 albertel 853: }
854: use strict 'refs';
855: }
856: return $currentstring;
1.82 ng 857: }
858:
1.96 albertel 859: sub setup_globals {
1.172 albertel 860: my ($request,$target)=@_;
861: $Apache::lonxml::request=$request;
1.99 albertel 862: $Apache::lonxml::registered = 0;
1.205 www 863: $errorcount=0;
864: $warningcount=0;
1.207 albertel 865: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 866: $Apache::lonxml::usestyle=1;
1.204 albertel 867: &init_counter();
1.101 albertel 868: @Apache::lonxml::pwd=();
1.124 albertel 869: @Apache::lonxml::extlinks=();
1.96 albertel 870: if ($target eq 'meta') {
871: $Apache::lonxml::redirection = 0;
872: $Apache::lonxml::metamode = 1;
873: $Apache::lonxml::evaluate = 1;
874: $Apache::lonxml::import = 0;
1.129 albertel 875: } elsif ($target eq 'answer') {
876: $Apache::lonxml::redirection = 0;
877: $Apache::lonxml::metamode = 1;
878: $Apache::lonxml::evaluate = 1;
879: $Apache::lonxml::import = 1;
1.96 albertel 880: } elsif ($target eq 'grade') {
881: &startredirection;
882: $Apache::lonxml::metamode = 0;
883: $Apache::lonxml::evaluate = 1;
884: $Apache::lonxml::import = 1;
885: } elsif ($target eq 'modified') {
886: $Apache::lonxml::redirection = 0;
887: $Apache::lonxml::metamode = 0;
888: $Apache::lonxml::evaluate = 0;
889: $Apache::lonxml::import = 0;
890: } elsif ($target eq 'edit') {
891: $Apache::lonxml::redirection = 0;
892: $Apache::lonxml::metamode = 0;
893: $Apache::lonxml::evaluate = 0;
894: $Apache::lonxml::import = 0;
1.163 albertel 895: } elsif ($target eq 'analyze') {
896: $Apache::lonxml::redirection = 0;
897: $Apache::lonxml::metamode = 0;
898: $Apache::lonxml::evaluate = 1;
899: $Apache::lonxml::import = 1;
1.96 albertel 900: } else {
901: $Apache::lonxml::redirection = 0;
902: $Apache::lonxml::metamode = 0;
903: $Apache::lonxml::evaluate = 1;
904: $Apache::lonxml::import = 1;
905: }
906: }
907:
1.82 ng 908: sub init_safespace {
909: my ($target,$safeeval,$safehole,$safeinit) = @_;
910: $safeeval->permit("entereval");
911: $safeeval->permit(":base_math");
912: $safeeval->permit("sort");
913: $safeeval->deny(":base_io");
1.102 albertel 914: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.82 ng 915: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
916:
917: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
918: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
919: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
920: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
921: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
922: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
923: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
924: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
925: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
926: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
927: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
928: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
929: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
930: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
931: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
932: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
933: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
934: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
935: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 936:
937: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
938: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
939: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
940: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
941: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
942: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
943: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
944: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
945: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
946: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
947: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
948: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
949: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
950: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
951: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
952: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
953: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
954: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
955: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
956: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
957: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
958: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
959:
960: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
961: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
962: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
963: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
964: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
965: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
966:
1.91 ng 967: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
968: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
969: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
970: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
971: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
972: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
973: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
974: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
975: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
976: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
977: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 978: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 979: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
980: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
981: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
982: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
983: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
984: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
985: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
986: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
987: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
988:
1.82 ng 989: #need to inspect this class of ops
990: # $safeeval->deny(":base_orig");
1.91 ng 991: $safeinit .= ';$external::target="'.$target.'";';
1.121 albertel 992: my $rndseed;
1.123 albertel 993: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
994: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
1.121 albertel 995: $safeinit .= ';$external::randomseed='.$rndseed.';';
1.82 ng 996: &Apache::run::run($safeinit,$safeeval);
1.207 albertel 997: }
998:
999: sub default_homework_load {
1000: my ($safeeval)=@_;
1001: &Apache::lonxml::debug('Loading default_homework');
1002: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
1003: if ($default == -1) {
1004: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
1005: } else {
1006: &Apache::run::run($default,$safeeval);
1007: $Apache::lonxml::default_homework_loaded=1;
1008: }
1.17 albertel 1009: }
1010:
1.55 albertel 1011: sub startredirection {
1012: $Apache::lonxml::redirection++;
1013: push (@Apache::lonxml::outputstack, '');
1014: }
1015:
1016: sub endredirection {
1017: if (!$Apache::lonxml::redirection) {
1.72 albertel 1018: &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
1.55 albertel 1019: return '';
1020: }
1021: $Apache::lonxml::redirection--;
1022: pop @Apache::lonxml::outputstack;
1.97 albertel 1023: }
1024:
1025: sub end_tag {
1026: my ($tagstack,$parstack,$token)=@_;
1027: pop(@$tagstack);
1028: pop(@$parstack);
1029: &decreasedepth($token);
1.55 albertel 1030: }
1031:
1.17 albertel 1032: sub initdepth {
1033: @Apache::lonxml::depthcounter=();
1034: $Apache::lonxml::depth=-1;
1035: $Apache::lonxml::olddepth=-1;
1036: }
1037:
1038: sub increasedepth {
1.19 albertel 1039: my ($token) = @_;
1.17 albertel 1040: $Apache::lonxml::depth++;
1041: $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
1042: if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
1043: $Apache::lonxml::olddepth=$Apache::lonxml::depth;
1044: }
1.42 albertel 1045: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 1046: &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
1.54 albertel 1047: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 1048: }
1049:
1050: sub decreasedepth {
1.19 albertel 1051: my ($token) = @_;
1.17 albertel 1052: $Apache::lonxml::depth--;
1.36 albertel 1053: if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
1054: $#Apache::lonxml::depthcounter--;
1055: $Apache::lonxml::olddepth=$Apache::lonxml::depth+1;
1056: }
1.43 albertel 1057: if ( $Apache::lonxml::depth < -1) {
1.140 albertel 1058: &Apache::lonxml::warning("Missing tags, unable to properly run file.");
1.43 albertel 1059: $Apache::lonxml::depth='-1';
1060: }
1.42 albertel 1061: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 1062: &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n");
1.54 albertel 1063: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 1064: }
1.19 albertel 1065:
1.180 albertel 1066: sub get_all_text_unbalanced {
1.190 albertel 1067: #there is a copy of this in lonpublisher.pm
1.180 albertel 1068: my($tag,$pars)= @_;
1069: my $token;
1070: my $result='';
1071: $tag='<'.$tag.'>';
1072: while ($token = $$pars[-1]->get_token) {
1073: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1074: $result.=$token->[1];
1075: } elsif ($token->[0] eq 'PI') {
1076: $result.=$token->[2];
1077: } elsif ($token->[0] eq 'S') {
1078: $result.=$token->[4];
1079: } elsif ($token->[0] eq 'E') {
1080: $result.=$token->[2];
1081: }
1.211 albertel 1082: if ($result =~ /(.*)\Q$tag\E(.*)/s) {
1.180 albertel 1083: &Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
1084: &Apache::lonxml::debug('Result is :'.$1);
1085: $result=$1;
1086: my $redo=$tag.$2;
1087: &Apache::lonxml::newparser($pars,\$redo);
1088: last;
1089: }
1090: }
1091: return $result
1.204 albertel 1092: }
1093:
1094: sub increment_counter {
1095: $Apache::lonxml::counter++;
1096: $Apache::lonxml::counter_changed=1;
1097: }
1098:
1099: sub init_counter {
1100: if (defined($ENV{'form.counter'})) {
1101: $Apache::lonxml::counter=$ENV{'form.counter'};
1102: } elsif (not defined($Apache::lonxml::counter)) {
1103: $Apache::lonxml::counter=1;
1104: &store_counter();
1105: }
1106: $Apache::lonxml::counter_changed=0;
1107: }
1108:
1109: sub store_counter {
1110: &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
1111: return '';
1.180 albertel 1112: }
1113:
1.19 albertel 1114: sub get_all_text {
1115: my($tag,$pars)= @_;
1.212 albertel 1116: &Apache::lonxml::debug("Got a ".ref($pars));
1.224 albertel 1117: my $gotfullstack=1;
1.212 albertel 1118: if (ref($pars) ne 'ARRAY') {
1.224 albertel 1119: $gotfullstack=0;
1.212 albertel 1120: $pars=[$pars];
1121: }
1.19 albertel 1122: my $depth=0;
1123: my $token;
1124: my $result='';
1.57 albertel 1125: if ( $tag =~ m:^/: ) {
1126: my $tag=substr($tag,1);
1.212 albertel 1127: #&Apache::lonxml::debug("have:$tag:");
1.223 albertel 1128: my $top_empty=0;
1129: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
1.212 albertel 1130: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
1131: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
1132: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1133: $result.=$token->[1];
1134: } elsif ($token->[0] eq 'PI') {
1135: $result.=$token->[2];
1136: } elsif ($token->[0] eq 'S') {
1137: if ($token->[1] =~ /^$tag$/i) { $depth++; }
1138: $result.=$token->[4];
1139: } elsif ($token->[0] eq 'E') {
1140: if ( $token->[1] =~ /^$tag$/i) { $depth--; }
1141: #skip sending back the last end tag
1142: if ($depth > -1) { $result.=$token->[2]; } else {
1143: $$pars[-1]->unget_token($token);
1144: }
1.57 albertel 1145: }
1146: }
1.212 albertel 1147: if (($depth >=0) && ($#$pars > 0) ) {
1148: pop(@$pars);
1149: pop(@Apache::lonxml::pwd);
1150: }
1.224 albertel 1151: if (($depth >=0) && ($#$pars == 0) ) { &debug("here4");$top_empty=1; }
1152: }
1153: if ($top_empty && $depth >= 0) {
1154: #never found the end tag ran out of text, throw error send back blank
1155: &error('Never found end tag for <'.$tag.'>');
1156: if ($gotfullstack) {
1157: my $newstring='</'.$tag.'>'.$result;
1158: &Apache::lonxml::newparser($pars,\$newstring);
1159: }
1160: $result='';
1.57 albertel 1161: }
1162: } else {
1.212 albertel 1163: while ($#$pars > -1) {
1164: while ($token = $$pars[-1]->get_token) {
1165: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
1166: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
1167: ($token->[0] eq 'D')) {
1168: $result.=$token->[1];
1169: } elsif ($token->[0] eq 'PI') {
1170: $result.=$token->[2];
1171: } elsif ($token->[0] eq 'S') {
1172: if ( $token->[1] =~ /^$tag$/i) {
1173: $$pars[-1]->unget_token($token); last;
1174: } else {
1175: $result.=$token->[4];
1176: }
1177: } elsif ($token->[0] eq 'E') {
1178: $result.=$token->[2];
1179: }
1180: }
1181: if (($#$pars > 0) ) {
1182: pop(@$pars);
1183: pop(@Apache::lonxml::pwd);
1184: } else { last; }
1.36 albertel 1185: }
1.19 albertel 1186: }
1.212 albertel 1187: if ($result =~ m|<LONCAPA_INTERNAL_TURN_STYLE_ON />|) {
1188: $Apache::lonxml::usestyle=1;
1189: }
1190: #&Apache::lonxml::debug("Exit:$result:");
1.19 albertel 1191: return $result
1192: }
1193:
1.23 albertel 1194: sub newparser {
1195: my ($parser,$contentref,$dir) = @_;
1.167 albertel 1196: push (@$parser,HTML::LCParser->new($contentref));
1.56 albertel 1197: $$parser['-1']->xml_mode('1');
1.23 albertel 1198: if ( $dir eq '' ) {
1199: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1200: } else {
1201: push (@Apache::lonxml::pwd, $dir);
1202: }
1203: # &Apache::lonxml::debug("pwd:$#Apache::lonxml::pwd");
1204: # &Apache::lonxml::debug("pwd:$Apache::lonxml::pwd[$#Apache::lonxml::pwd]");
1205: }
1.1 sakharuk 1206:
1.8 albertel 1207: sub parstring {
1208: my ($token) = @_;
1209: my $temp='';
1.142 albertel 1210: foreach (@{$token->[3]}) {
1.35 www 1211: unless ($_=~/\W/) {
1.42 albertel 1212: my $val=$token->[2]->{$_};
1.150 albertel 1213: $val =~ s/([\%\@\\\"])/\\$1/g;
1.51 albertel 1214: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1.42 albertel 1215: $temp .= "my \$$_=\"$val\";"
1.20 albertel 1216: }
1.142 albertel 1217: }
1.8 albertel 1218: return $temp;
1219: }
1.22 albertel 1220:
1.34 www 1221: sub writeallows {
1.126 www 1222: unless ($#extlinks>=0) { return; }
1.34 www 1223: my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
1.111 www 1224: if ($ENV{'httpref.'.$thisurl}) {
1225: $thisurl=$ENV{'httpref.'.$thisurl};
1226: }
1.34 www 1227: my $thisdir=$thisurl;
1228: $thisdir=~s/\/[^\/]+$//;
1229: my %httpref=();
1.142 albertel 1230: foreach (@extlinks) {
1.34 www 1231: $httpref{'httpref.'.
1.125 www 1232: &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl;
1.142 albertel 1233: }
1.126 www 1234: @extlinks=();
1.34 www 1235: &Apache::lonnet::appenv(%httpref);
1236: }
1237:
1.66 www 1238: #
1239: # Afterburner handles anchors, highlights and links
1240: #
1241: sub afterburn {
1242: my $result=shift;
1.154 albertel 1243: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1244: ['highlight','anchor','link']);
1.66 www 1245: if ($ENV{'form.highlight'}) {
1.142 albertel 1246: foreach (split(/\,/,$ENV{'form.highlight'})) {
1.66 www 1247: my $anchorname=$_;
1248: my $matchthis=$anchorname;
1249: $matchthis=~s/\_+/\\s\+/g;
1250: $result=~s/($matchthis)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1251: }
1.66 www 1252: }
1253: if ($ENV{'form.link'}) {
1.142 albertel 1254: foreach (split(/\,/,$ENV{'form.link'})) {
1.66 www 1255: my ($anchorname,$linkurl)=split(/\>/,$_);
1256: my $matchthis=$anchorname;
1257: $matchthis=~s/\_+/\\s\+/g;
1258: $result=~s/($matchthis)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1259: }
1.66 www 1260: }
1261: if ($ENV{'form.anchor'}) {
1262: my $anchorname=$ENV{'form.anchor'};
1263: my $matchthis=$anchorname;
1264: $matchthis=~s/\_+/\\s\+/g;
1265: $result=~s/($matchthis)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1266: $result.=(<<"ENDSCRIPT");
1.226 albertel 1267: <script type="text/javascript">
1.66 www 1268: document.location.hash='$anchorname';
1269: </script>
1270: ENDSCRIPT
1271: }
1272: return $result;
1273: }
1274:
1.79 www 1275: sub storefile {
1276: my ($file,$contents)=@_;
1277: if (my $fh=Apache::File->new('>'.$file)) {
1278: print $fh $contents;
1279: $fh->close();
1.147 albertel 1280: } else {
1281: &warning("Unable to save file $file");
1.79 www 1282: }
1283: }
1284:
1.151 albertel 1285: sub createnewhtml {
1286: my $filecontents=(<<SIMPLECONTENT);
1.78 www 1287: <html>
1288: <head>
1289: <title>
1290: Title of Document Goes Here
1291: </title>
1292: </head>
1293: <body bgcolor="#FFFFFF">
1294:
1295: Body of Document Goes Here
1296:
1297: </body>
1298: </html>
1299: SIMPLECONTENT
1.151 albertel 1300: return $filecontents;
1301: }
1302:
1.147 albertel 1303:
1.151 albertel 1304: sub inserteditinfo {
1305: my ($result,$filecontents)=@_;
1.157 albertel 1306: $filecontents = &HTML::Entities::encode($filecontents);
1.147 albertel 1307: # my $editheader='<a href="#editsection">Edit below</a><hr />';
1.161 albertel 1308: my $buttons=(<<BUTTONS);
1309: <input type="submit" name="attemptclean"
1310: value="Save and then attempt to clean HTML" />
1311: <input type="submit" name="savethisfile" value="Save this" />
1312: <input type="submit" name="viewmode" value="View" />
1313: BUTTONS
1.78 www 1314: my $editfooter=(<<ENDFOOTER);
1315: <hr />
1316: <a name="editsection" />
1317: <form method="post">
1.161 albertel 1318: <input type="hidden" name="editmode" value="Edit" />
1.170 www 1319: $buttons<br />
1.78 www 1320: <textarea cols="80" rows="40" name="filecont">$filecontents</textarea>
1.170 www 1321: <br />$buttons
1.78 www 1322: <br />
1323: </form>
1324: ENDFOOTER
1.147 albertel 1325: # $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
1.78 www 1326: $result=~s/(\<\/body\>)/$editfooter/is;
1327: return $result;
1328: }
1329:
1.152 albertel 1330: sub get_target {
1331: my $viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
1332: if ( $ENV{'request.state'} eq 'published') {
1333: if ( defined($ENV{'form.grade_target'})
1334: && ($viewgrades == 'F' )) {
1335: return ($ENV{'form.grade_target'});
1.153 albertel 1336: } elsif (defined($ENV{'form.grade_target'})) {
1337: if (($ENV{'form.grade_target'} eq 'web') ||
1338: ($ENV{'form.grade_target'} eq 'tex') ) {
1339: return $ENV{'form.grade_target'}
1340: } else {
1341: return 'web';
1342: }
1.152 albertel 1343: } else {
1344: return 'web';
1345: }
1346: } elsif ($ENV{'request.state'} eq 'construct') {
1347: if ( defined($ENV{'form.grade_target'})) {
1348: return ($ENV{'form.grade_target'});
1349: } else {
1350: return 'web';
1351: }
1352: } else {
1353: return 'web';
1354: }
1355: }
1356:
1.24 sakharuk 1357: sub handler {
1358: my $request=shift;
1.68 www 1359:
1.152 albertel 1360: my $target=&get_target();
1.68 www 1361:
1.65 albertel 1362: $Apache::lonxml::debug=0;
1.68 www 1363:
1.25 sakharuk 1364: if ($ENV{'browser.mathml'}) {
1.27 albertel 1365: $request->content_type('text/xml');
1366: } else {
1367: $request->content_type('text/html');
1.25 sakharuk 1368: }
1.141 albertel 1369: &Apache::loncommon::no_cache($request);
1.27 albertel 1370: $request->send_http_header;
1.141 albertel 1371:
1.45 www 1372: return OK if $request->header_only;
1.27 albertel 1373:
1.79 www 1374:
1375: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.78 www 1376: #
1377: # Edit action? Save file.
1378: #
1379: unless ($ENV{'request.state'} eq 'published') {
1.107 www 1380: if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
1.79 www 1381: &storefile($file,$ENV{'form.filecont'});
1.78 www 1382: }
1383: }
1.24 sakharuk 1384: my %mystyle;
1.147 albertel 1385: my $result = '';
1.50 albertel 1386: my $filecontents=&Apache::lonnet::getfile($file);
1387: if ($filecontents == -1) {
1.78 www 1388: $result=(<<ENDNOTFOUND);
1389: <html>
1390: <head>
1391: <title>File not found</title>
1392: </head>
1393: <body bgcolor="#FFFFFF">
1394: <b>File not found: $file</b>
1395: </body>
1396: </html>
1397: ENDNOTFOUND
1.50 albertel 1398: $filecontents='';
1.151 albertel 1399: if ($ENV{'request.state'} ne 'published') {
1400: $filecontents=&createnewhtml();
1.161 albertel 1401: $ENV{'form.editmode'}='Edit'; #force edit mode
1.151 albertel 1402: }
1.50 albertel 1403: } else {
1.147 albertel 1404: unless ($ENV{'request.state'} eq 'published') {
1405: if ($ENV{'form.attemptclean'}) {
1406: $filecontents=&htmlclean($filecontents,1);
1.107 www 1407: }
1.147 albertel 1408: }
1.161 albertel 1409: if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
1.172 albertel 1410: $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
1411: '',%mystyle);
1.147 albertel 1412: }
1.78 www 1413: }
1414:
1415: #
1416: # Edit action? Insert editing commands
1417: #
1418: unless ($ENV{'request.state'} eq 'published') {
1.161 albertel 1419: if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
1.177 www 1420: my $displayfile=$request->uri;
1421: $displayfile=~s/^\/[^\/]*//;
1422: $result='<html><body bgcolor="#FFFFFF"><h3>'.$displayfile.
1423: '</h3></body></html>';
1.78 www 1424: $result=&inserteditinfo($result,$filecontents);
1.147 albertel 1425: }
1.66 www 1426: }
1.147 albertel 1427:
1.126 www 1428: writeallows($request->uri);
1.50 albertel 1429:
1.67 www 1430: $request->print($result);
1.64 albertel 1431:
1.45 www 1432: return OK;
1.24 sakharuk 1433: }
1.147 albertel 1434:
1.22 albertel 1435: sub debug {
1436: if ($Apache::lonxml::debug eq 1) {
1.146 albertel 1437: $|=1;
1.202 albertel 1438: print('<font size="-2"<pre>DEBUG:'.&HTML::Entities::encode($_[0])."</pre></font>\n");
1.22 albertel 1439: }
1440: }
1.49 albertel 1441:
1.22 albertel 1442: sub error {
1.205 www 1443: $errorcount++;
1.74 albertel 1444: if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
1.166 matthew 1445: # If printing in construction space, put the error inside <pre></pre>
1.167 albertel 1446: print "<b>ERROR:</b>".join("\n",@_)."\n";
1.52 albertel 1447: } else {
1448: print "<b>An Error occured while processing this resource. The instructor has been notified.</b> <br />";
1449: #notify author
1.146 albertel 1450: &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
1.52 albertel 1451: #notify course
1452: if ( $ENV{'request.course.id'} ) {
1.209 www 1453: my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
1.143 www 1454: my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
1.209 www 1455: foreach (keys %users) {
1456: my ($user,$domain) = split(/:/, $_);
1.143 www 1457: &Apache::lonmsg::user_normal_msg($user,$domain,
1.146 albertel 1458: "Error [$declutter]",join('<br />',@_));
1.52 albertel 1459: }
1460: }
1.74 albertel 1461:
1.52 albertel 1462: #FIXME probably shouldn't have me get everything forever.
1.146 albertel 1463: &Apache::lonmsg::user_normal_msg('albertel','msu',"Error in $ENV{'request.filename'}",join('<br />',@_));
1.74 albertel 1464: #&Apache::lonmsg::user_normal_msg('albertel','103',"Error in $ENV{'request.filename'}",$_[0]);
1.52 albertel 1465: }
1.22 albertel 1466: }
1.49 albertel 1467:
1.22 albertel 1468: sub warning {
1.205 www 1469: $warningcount++;
1.73 harris41 1470: if ($ENV{'request.state'} eq 'construct') {
1.146 albertel 1471: print "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n";
1.73 harris41 1472: }
1.83 albertel 1473: }
1474:
1475: sub get_param {
1.213 albertel 1476: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1477: if ( ! $context ) { $context = -1; }
1478: my $args ='';
1479: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1480: if ( ! $args ) { return undef; }
1481: if ( $case_insensitive ) {
1482: if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
1483: return &Apache::run::run("{$args;".'return $'.$param.'}',
1484: $safeeval); #'
1485: } else {
1486: return undef;
1487: }
1488: } else {
1489: if ( $args =~ /my \$\Q$param\E=\"/ ) {
1490: return &Apache::run::run("{$args;".'return $'.$param.'}',
1491: $safeeval); #'
1492: } else {
1493: return undef;
1494: }
1495: }
1.22 albertel 1496: }
1497:
1.132 albertel 1498: sub get_param_var {
1.213 albertel 1499: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 1500: if ( ! $context ) { $context = -1; }
1501: my $args ='';
1502: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.213 albertel 1503: if ($case_insensitive) {
1504: if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
1505: return undef;
1506: }
1507: } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; }
1.132 albertel 1508: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1509: if ($value =~ /^[\$\@\%]/) {
1510: return &Apache::run::run("return $value",$safeeval,1);
1511: } else {
1512: return $value;
1513: }
1514: }
1515:
1.74 albertel 1516: sub register_insert {
1.75 albertel 1517: my @data = split /\n/, &Apache::lonnet::getfile('/home/httpd/lonTabs/insertlist.tab');
1.74 albertel 1518: my $i;
1.76 albertel 1519: my $tagnum=0;
1.74 albertel 1520: my @order;
1521: for ($i=0;$i < $#data; $i++) {
1522: my $line = $data[$i];
1523: if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; }
1524: if ( $line =~ /TABLE/ ) { last; }
1.92 albertel 1525: my ($tag,$descrip,$color,$function,$show) = split(/,/, $line);
1.135 albertel 1526: if ($tag) {
1527: $insertlist{"$tagnum.tag"} = $tag;
1528: $insertlist{"$tagnum.description"} = $descrip;
1529: $insertlist{"$tagnum.color"} = $color;
1530: $insertlist{"$tagnum.function"} = $function;
1531: if (!defined($show)) { $show='yes'; }
1532: $insertlist{"$tagnum.show"}= $show;
1533: $insertlist{"$tag.num"}=$tagnum;
1534: $tagnum++;
1535: }
1.74 albertel 1536: }
1.76 albertel 1537: $i++; #skipping TABLE line
1538: $tagnum = 0;
1.74 albertel 1539: for (;$i < $#data;$i++) {
1540: my $line = $data[$i];
1.76 albertel 1541: my ($mnemonic,@which) = split(/ +/,$line);
1542: my $tag = $insertlist{"$tagnum.tag"};
1.144 matthew 1543: for (my $j=0;$j <=$#which;$j++) {
1.74 albertel 1544: if ( $which[$j] eq 'Y' ) {
1.76 albertel 1545: if ($insertlist{"$j.show"} ne 'no') {
1546: push(@{ $insertlist{"$tag.which"} },$j);
1547: }
1.74 albertel 1548: }
1549: }
1.76 albertel 1550: $tagnum++;
1.74 albertel 1551: }
1552: }
1.98 albertel 1553:
1554: sub description {
1555: my ($token)=@_;
1.138 albertel 1556: my $tagnum;
1557: my $tag=$token->[1];
1558: foreach my $namespace (reverse @Apache::lonxml::namespace) {
1559: my $testtag=$namespace.'::'.$tag;
1560: $tagnum=$insertlist{"$testtag.num"};
1561: if (defined($tagnum)) { last; }
1562: }
1563: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
1564: return $insertlist{$tagnum.'.description'};
1.98 albertel 1565: }
1.123 albertel 1566:
1567: # ----------------------------------------------------------------- whichuser
1568: # returns a list of $symb, $courseid, $domain, $name that is correct for
1569: # calls to lonnet functions for this setup.
1570: # - looks for form.grade_ parameters
1571: sub whichuser {
1.134 albertel 1572: my ($symb,$courseid,$domain,$name);
1.123 albertel 1573: if (defined($ENV{'form.grade_symb'})) {
1574: my $tmp_courseid=$ENV{'form.grade_courseid'};
1575: my $allowed=&Apache::lonnet::allowed('mgr',$tmp_courseid);
1576: if ($allowed) {
1577: $symb=$ENV{'form.grade_symb'};
1578: $courseid=$ENV{'form.grade_courseid'};
1579: $domain=$ENV{'form.grade_domain'};
1580: $name=$ENV{'form.grade_username'};
1581: }
1.134 albertel 1582: } else {
1583: $symb=&Apache::lonnet::symbread();
1584: $courseid=$ENV{'request.course.id'};
1585: $domain=$ENV{'user.domain'};
1586: $name=$ENV{'user.name'};
1.123 albertel 1587: }
1588: return ($symb,$courseid,$domain,$name);
1589: }
1590:
1.1 sakharuk 1591: 1;
1592: __END__
1.68 www 1593:
1594:
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