Annotation of loncom/xml/lonxml.pm, revision 1.123
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.3 sakharuk 4: # last modified 06/26/00 by Alexander Sakharuk
1.33 www 5: # 11/6 Gerd Kortemeyer
1.45 www 6: # 6/1/1 Gerd Kortemeyer
1.56 albertel 7: # 2/21,3/13 Guy
1.68 www 8: # 3/29,5/4 Gerd Kortemeyer
1.73 harris41 9: # 5/10 Scott Harrison
1.78 www 10: # 5/26 Gerd Kortemeyer
1.80 harris41 11: # 5/27 H. K. Ng
1.89 www 12: # 6/2,6/3,6/8,6/9 Gerd Kortemeyer
1.93 ng 13: # 6/12,6/13 H. K. Ng
1.95 www 14: # 6/16 Gerd Kortemeyer
1.104 ng 15: # 7/27 H. K. Ng
1.119 www 16: # 8/7,8/9,8/10,8/11,8/15,8/16,8/17,8/18,8/20 Gerd Kortemeyer
1.2 sakharuk 17:
1.4 albertel 18: package Apache::lonxml;
1.33 www 19: use vars
1.76 albertel 20: qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace);
1.1 sakharuk 21: use strict;
22: use HTML::TokeParser;
1.106 www 23: use HTML::TreeBuilder;
1.3 sakharuk 24: use Safe;
1.40 albertel 25: use Safe::Hole;
1.81 ng 26: use Math::Cephes qw(:trigs :hypers :bessels erf erfc);
1.91 ng 27: use Math::Random qw(:all);
1.13 albertel 28: use Opcode;
1.72 albertel 29:
30: sub register {
31: my $space;
32: my @taglist;
33: my $temptag;
34: ($space,@taglist) = @_;
35: foreach $temptag (@taglist) {
36: $Apache::lonxml::alltags{$temptag}=$space;
37: }
38: }
39:
1.46 www 40: use Apache::Constants qw(:common);
1.71 www 41: use Apache::lontexconvert;
1.72 albertel 42: use Apache::style;
43: use Apache::run;
44: use Apache::londefdef;
45: use Apache::scripttag;
46: use Apache::edit;
1.79 www 47: use Apache::lonnet;
48: use Apache::File;
49:
1.72 albertel 50: #================================================== Main subroutine: xmlparse
51: #debugging control, to turn on debugging modify the correct handler
52: $Apache::lonxml::debug=0;
53:
54: #path to the directory containing the file currently being processed
55: @pwd=();
56:
57: #these two are used for capturing a subset of the output for later processing,
58: #don't touch them directly use &startredirection and &endredirection
59: @outputstack = ();
60: $redirection = 0;
61:
62: #controls wheter the <import> tag actually does
63: $import = 1;
64: @extlinks=();
65:
66: # meta mode is a bit weird only some output is to be turned off
67: #<output> tag turns metamode off (defined in londefdef.pm)
68: $metamode = 0;
69:
70: # turns on and of run::evaluate actually derefencing var refs
71: $evaluate = 1;
1.7 albertel 72:
1.74 albertel 73: # data structure for eidt mode, determines what tags can go into what other tags
74: %insertlist=();
1.68 www 75:
1.99 albertel 76: # stores the list of active tag namespaces
1.76 albertel 77: @namespace=();
78:
1.99 albertel 79: # has the dynamic menu been updated to know about this resource
80: $Apache::lonxml::registered=0;
81:
1.68 www 82: sub xmlbegin {
83: my $output='';
84: if ($ENV{'browser.mathml'}) {
85: $output='<?xml version="1.0"?>'
86: .'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'
87: .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
88: .'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>'
89: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
90: .'xmlns="http://www.w3.org/TR/REC-html40">';
91: } else {
92: $output='<html>';
93: }
94: return $output;
95: }
96:
97: sub xmlend {
1.103 www 98: my $discussion='';
99: if ($ENV{'request.course.id'}) {
1.109 www 100: my $crs='/'.$ENV{'request.course.id'};
101: if ($ENV{'request.course.sec'}) {
102: $crs.='_'.$ENV{'request.course.sec'};
103: }
104: $crs=~s/\_/\//g;
105: my $seeid=&Apache::lonnet::allowed('rin',$crs);
1.103 www 106: my $symb=&Apache::lonnet::symbread();
107: if ($symb) {
108: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
109: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
110: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
111: if ($contrib{'version'}) {
112: $discussion.=
113: '<address><hr /><h2>Course Discussion of Resource</h2>';
114: my $idx;
115: for ($idx=1;$idx<=$contrib{'version'};$idx++) {
1.110 www 116: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
117: unless (($hidden) && (!$seeid)) {
118: my $message=$contrib{$idx.':message'};
119: $message=~s/\n/\<br \/\>/g;
120: if ($message) {
121: if ($hidden) {
122: $message='<font color="#888888">'.$message.'</font>';
123: }
1.109 www 124: my $sender='Anonymous';
125: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
126: $sender=$contrib{$idx.':sendername'}.' at '.
127: $contrib{$idx.':senderdomain'};
128: if ($contrib{$idx.':anonymous'}) {
129: $sender.=' (anonymous)';
1.110 www 130: }
131: if ($seeid) {
132: if ($hidden) {
133: $sender.=' <a href="/adm/feedback?unhide='.
134: $symb.':::'.$idx.'">Make Visible</a>';
135: } else {
136: $sender.=' <a href="/adm/feedback?hide='.
137: $symb.':::'.$idx.'">Hide</a>';
138: }
1.109 www 139: }
140: }
141: $discussion.='<p><b>'.$sender.'</b> ('.
1.103 www 142: localtime($contrib{$idx.':timestamp'}).
143: '):<blockquote>'.$message.
1.110 www 144: '</blockquote></p>';
145: }
146: }
1.103 www 147: }
148: $discussion.='</address>';
149: }
150: }
151: }
152: return $discussion.'</html>';
1.119 www 153: }
154:
155: sub tokeninputfield {
1.120 www 156: my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
157: $defhost=~tr/a-z/A-Z/;
1.119 www 158: return (<<ENDINPUTFIELD)
1.120 www 159: <script>
160: function updatetoken() {
161: var comp=new Array;
162: var barcode=unescape(document.tokeninput.barcode.value);
163: comp=barcode.split('*');
164: if (typeof(comp[0])!="undefined") {
165: document.tokeninput.codeone.value=comp[0];
166: }
167: if (typeof(comp[1])!="undefined") {
168: document.tokeninput.codetwo.value=comp[1];
169: }
170: if (typeof(comp[2])!="undefined") {
171: comp[2]=comp[2].toUpperCase();
172: document.tokeninput.codethree.value=comp[2];
173: }
174: document.tokeninput.barcode.value='';
175: }
176: </script>
177: <form method="post" name="tokeninput">
1.119 www 178: <table border="2" bgcolor="#FFFFBB">
179: <tr><th>DocID Checkin</th></tr>
180: <tr><td>
181: <table>
182: <tr>
183: <td>Scan in Barcode</td>
1.120 www 184: <td><input type="text" size="22" name="barcode"
185: onChange="updatetoken()"/></td>
1.119 www 186: </tr>
187: <tr><td><i>or</i> Type in DocID</td>
188: <td>
189: <input type="text" size="5" name="codeone" />
1.120 www 190: <b><font size="+2">*</font></b>
1.119 www 191: <input type="text" size="5" name="codetwo" />
1.120 www 192: <b><font size="+2">*</font></b>
193: <input type="text" size="10" name="codethree" value="$defhost"
194: onChange="this.value=this.value.toUpperCase()" />
1.119 www 195: </td></tr>
196: </table>
197: </td></tr>
198: <tr><td><input type="submit" value="Check in DocID" /></td></tr>
199: </table>
200: </form>
201: ENDINPUTFIELD
1.112 www 202: }
203:
1.116 www 204: sub maketoken {
1.118 www 205: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1.112 www 206: unless ($symb) {
207: $symb=&Apache::lonnet::symbread();
208: }
209: unless ($tuname) {
210: $tuname=$ENV{'user.name'};
211: $tudom=$ENV{'user.domain'};
212: $tcrsid=$ENV{'request.course.id'};
213: }
1.116 www 214:
1.118 www 215: return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
216: }
217:
218: sub printtokenheader {
219: my ($target,$token,$symb,$tuname,$tudom,$tcrsid)=@_;
1.116 www 220: unless ($token) { return ''; }
1.118 www 221:
222: unless ($symb) {
223: $symb=&Apache::lonnet::symbread();
224: }
225: unless ($tuname) {
226: $tuname=$ENV{'user.name'};
227: $tudom=$ENV{'user.domain'};
228: $tcrsid=$ENV{'request.course.id'};
229: }
1.114 www 230:
231: my %reply=&Apache::lonnet::get('environment',
232: ['firstname','middlename','lastname','generation'],
233: $tudom,$tuname);
234: my $plainname=$reply{'firstname'}.' '.
235: $reply{'middlename'}.' '.
236: $reply{'lastname'}.' '.
237: $reply{'generation'};
238:
1.112 www 239: if ($target eq 'web') {
1.115 www 240: return
241: '<img align="right" src="/cgi-bin/barcode.gif?encode='.$token.'" />'.
242: 'Checked out for '.$plainname.
1.114 www 243: '<br />User: '.$tuname.' at '.$tudom.
1.117 www 244: '<br />CourseID: '.$tcrsid.
1.114 www 245: '<br />DocID: '.$token.
1.116 www 246: '<br />Time: '.localtime().'<hr />';
1.112 www 247: } else {
1.121 albertel 248: return $token;
1.112 www 249: }
1.68 www 250: }
251:
1.70 www 252: sub fontsettings() {
253: my $headerstring='';
254: if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
255: $headerstring.=
256: '<meta Content-Type="text/html; charset=x-mac-roman">';
257: }
258: return $headerstring;
259: }
260:
1.68 www 261: sub registerurl {
1.100 www 262: my $forcereg=shift;
1.99 albertel 263: if ($Apache::lonxml::registered) { return ''; }
1.105 albertel 264: $Apache::lonxml::registered=1;
1.100 www 265: if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
1.87 www 266: my $hwkadd='';
267: if ($ENV{'REQUEST_URI'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
268: if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
269: $hwkadd.=(<<ENDSUBM);
270: menu.switchbutton
271: (7,1,'subm.gif','view sub','missions',
1.88 www 272: 'gocmd("/adm/grades","submission")');
1.87 www 273: ENDSUBM
274: }
275: if (&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})) {
276: $hwkadd.=(<<ENDGRDS);
277: menu.switchbutton
278: (7,2,'pgrd.gif','problem','grades',
1.88 www 279: 'gocmd("/adm/grades","viewgrades")');
1.87 www 280: ENDGRDS
281: }
282: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
283: $hwkadd.=(<<ENDPARM);
284: menu.switchbutton
285: (7,3,'pparm.gif','problem','parms',
1.88 www 286: 'gocmd("/adm/parmset","set")');
1.87 www 287: ENDPARM
288: }
289: }
1.86 www 290: return (<<ENDREGTHIS);
1.87 www 291:
1.68 www 292: <script language="JavaScript">
1.71 www 293: // BEGIN LON-CAPA Internal
1.86 www 294:
1.69 www 295: function LONCAPAreg() {
296: menu=window.open("","LONCAPAmenu");
1.86 www 297: menu.clearTimeout(menu.menucltim);
1.69 www 298: menu.currentURL=window.location.pathname;
299: menu.currentStale=0;
1.85 www 300: menu.clearbut(3,1);
301: menu.switchbutton
1.108 www 302: (6,3,'catalog.gif','catalog','info','catalog_info()');
303: menu.switchbutton
1.85 www 304: (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)');
305: menu.switchbutton
306: (8,2,'fdbk.gif','feedback','on this','gopost("/adm/feedback",currentURL)');
307: menu.switchbutton
308: (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)');
309: menu.switchbutton
310: (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)');
311: menu.switchbutton
312: (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)');
1.94 www 313: menu.switchbutton
314: (9,1,'sbkm.gif','set','bookmark','set_bookmark()');
315: menu.switchbutton
316: (9,2,'vbkm.gif','view','bookmark','edit_bookmarks()');
317: menu.switchbutton
1.95 www 318: (9,3,'anot.gif','anno-','tations','annotate()');
1.87 www 319: $hwkadd
1.69 www 320: }
1.86 www 321:
1.69 www 322: function LONCAPAstale() {
1.86 www 323: menu=window.open("","LONCAPAmenu");
324: menu.currentStale=1;
325: menu.switchbutton
326: (3,1,'reload.gif','return','location','go(currentURL)');
1.90 www 327: menu.clearbut(7,1);
328: menu.clearbut(7,2);
329: menu.clearbut(7,3);
1.86 www 330: menu.menucltim=menu.setTimeout(
1.94 www 331: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
1.108 www 332: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3)',
1.86 www 333: 2000);
334:
1.87 www 335: }
1.86 www 336:
337: // END LON-CAPA Internal
338: </script>
339: ENDREGTHIS
340:
341: } else {
342: return (<<ENDDONOTREGTHIS);
343:
344: <script language="JavaScript">
345: // BEGIN LON-CAPA Internal
346:
347: function LONCAPAreg() {
1.69 www 348: menu=window.open("","LONCAPAmenu");
349: menu.currentStale=1;
1.85 www 350: menu.clearbut(2,1);
351: menu.clearbut(2,3);
352: menu.clearbut(8,1);
353: menu.clearbut(8,2);
354: menu.clearbut(8,3);
1.86 www 355: if (menu.currentURL) {
356: menu.switchbutton
357: (3,1,'reload.gif','return','location','go(currentURL)');
358: } else {
359: menu.clearbut(3,1);
360: }
361: }
362:
363: function LONCAPAstale() {
1.68 www 364: }
1.86 www 365:
1.71 www 366: // END LON-CAPA Internal
1.68 www 367: </script>
1.86 www 368: ENDDONOTREGTHIS
369:
370: }
1.69 www 371: }
372:
373: sub loadevents() {
374: return 'LONCAPAreg();';
375: }
376:
377: sub unloadevents() {
378: return 'LONCAPAstale();';
1.68 www 379: }
380:
1.48 albertel 381: sub printalltags {
382: my $temp;
383: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.64 albertel 384: &Apache::lonxml::debug("$temp -- $Apache::lonxml::alltags{$temp}");
1.48 albertel 385: }
386: }
1.31 sakharuk 387:
1.3 sakharuk 388: sub xmlparse {
1.18 albertel 389: my ($target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 390:
391: &setup_globals($target);
1.48 albertel 392: #&printalltags();
1.16 albertel 393: my @pars = ();
1.23 albertel 394: my $pwd=$ENV{'request.filename'};
395: $pwd =~ s:/[^/]*$::;
396: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 397:
1.3 sakharuk 398: my $safeeval = new Safe;
1.40 albertel 399: my $safehole = new Safe::Hole;
1.82 ng 400: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 401: #-------------------- Redefinition of the target in the case of compound target
402:
403: ($target, my @tenta) = split('&&',$target);
404:
405: my @stack = ();
406: my @parstack = ();
1.17 albertel 407: &initdepth;
1.67 www 408:
1.101 albertel 409: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
410: $safeeval,\%style_for_target);
1.67 www 411:
1.3 sakharuk 412: return $finaloutput;
1.106 www 413: }
414:
415: sub htmlclean {
1.107 www 416: my ($raw,$full)=@_;
1.106 www 417:
418: my $tree = HTML::TreeBuilder->new;
419: $tree->ignore_unknown(0);
420:
421: $tree->parse($raw);
422:
1.107 www 423: my $output= $tree->as_HTML(undef,' ');
1.106 www 424:
1.111 www 425: $output=~s/\<(br|hr|img|meta|allow)([^\>\/]*)\>/\<$1$2 \/\>/gis;
426: $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
1.107 www 427: unless ($full) {
428: $output=~s/\<[\/]*(body|head|html)\>//gis;
429: }
1.106 www 430:
431: $tree = $tree->delete;
432:
433: return $output;
1.15 albertel 434: }
435:
1.101 albertel 436: sub inner_xmlparse {
437: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
438: my $finaloutput = '';
439: my $result;
440: my $token;
441: while ( $#$pars > -1 ) {
442: while ($token = $$pars['-1']->get_token) {
443: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
444: if ($metamode<1) {
445: $result=$token->[1];
446: }
447: } elsif ($token->[0] eq 'PI') {
448: if ($metamode<1) {
449: $result=$token->[2];
450: }
451: } elsif ($token->[0] eq 'S') {
452: # add tag to stack
453: push (@$stack,$token->[1]);
454: # add parameters list to another stack
455: push (@$parstack,&parstring($token));
456: &increasedepth($token);
457: if (exists $$style_for_target{$token->[1]}) {
458: if ($Apache::lonxml::redirection) {
459: $Apache::lonxml::outputstack['-1'] .=
460: &recurse($$style_for_target{$token->[1]},$target,$safeeval,
461: $style_for_target,@$parstack);
462: } else {
463: $finaloutput .= &recurse($$style_for_target{$token->[1]},$target,
464: $safeeval,$style_for_target,@$parstack);
465: }
466: } else {
467: $result = &callsub("start_$token->[1]", $target, $token, $stack,
468: $parstack, $pars, $safeeval, $style_for_target);
469: }
470: } elsif ($token->[0] eq 'E') {
471: #clear out any tags that didn't end
472: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
473: &Apache::lonxml::warning("Unbalanced tags in resource $$stack['-1']");
474: &end_tag($stack,$parstack,$token);
475: }
476:
477: if (exists $$style_for_target{'/'."$token->[1]"}) {
478: if ($Apache::lonxml::redirection) {
479: $Apache::lonxml::outputstack['-1'] .=
480: &recurse($$style_for_target{'/'."$token->[1]"},
481: $target,$safeeval,$style_for_target,@$parstack);
482: } else {
483: $finaloutput .= &recurse($$style_for_target{'/'."$token->[1]"},
484: $target,$safeeval,$style_for_target,
485: @$parstack);
486: }
487:
488: } else {
489: $result = &callsub("end_$token->[1]", $target, $token, $stack,
490: $parstack, $pars,$safeeval, $style_for_target);
491: }
492: } else {
493: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
494: }
495: #evaluate variable refs in result
496: if ($result ne "") {
497: if ( $#$parstack > -1 ) {
498: if ($Apache::lonxml::redirection) {
499: $Apache::lonxml::outputstack['-1'] .=
500: &Apache::run::evaluate($result,$safeeval,$$parstack['-1']);
501: } else {
502: $finaloutput .= &Apache::run::evaluate($result,$safeeval,
503: $$parstack['-1']);
504: }
505: } else {
506: $finaloutput .= &Apache::run::evaluate($result,$safeeval,'');
507: }
508: $result = '';
509: }
510: if ($token->[0] eq 'E') {
511: &end_tag($stack,$parstack,$token);
512: }
513: }
514: pop @$pars;
515: pop @Apache::lonxml::pwd;
516: }
517:
518: # if ($target eq 'meta') {
519: # $finaloutput.=&endredirection;
520: # }
521:
522: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
523: $finaloutput=&afterburn($finaloutput);
524: }
525: return $finaloutput;
526: }
1.67 www 527:
1.15 albertel 528: sub recurse {
529: my @innerstack = ();
530: my @innerparstack = ();
531: my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_;
1.16 albertel 532: my @pat = ();
1.23 albertel 533: &newparser(\@pat,\$newarg);
1.15 albertel 534: my $tokenpat;
535: my $partstring = '';
536: my $output='';
1.16 albertel 537: my $decls='';
538: while ( $#pat > -1 ) {
539: while ($tokenpat = $pat[$#pat]->get_token) {
1.57 albertel 540: if (($tokenpat->[0] eq 'T') || ($tokenpat->[0] eq 'C') || ($tokenpat->[0] eq 'D') ) {
1.61 albertel 541: if ($metamode<1) { $partstring=$tokenpat->[1]; }
1.57 albertel 542: } elsif ($tokenpat->[0] eq 'PI') {
1.61 albertel 543: if ($metamode<1) { $partstring=$tokenpat->[2]; }
1.16 albertel 544: } elsif ($tokenpat->[0] eq 'S') {
545: push (@innerstack,$tokenpat->[1]);
546: push (@innerparstack,&parstring($tokenpat));
1.19 albertel 547: &increasedepth($tokenpat);
1.84 albertel 548: $partstring = &callsub("start_$tokenpat->[1]", $target, $tokenpat,
549: \@innerstack, \@innerparstack, \@pat,
550: $safeeval, $style_for_target);
1.16 albertel 551: } elsif ($tokenpat->[0] eq 'E') {
552: #clear out any tags that didn't end
553: while ($tokenpat->[1] ne $innerstack[$#innerstack]
1.43 albertel 554: && ($#innerstack > -1)) {
1.49 albertel 555: &Apache::lonxml::warning("Unbalanced tags in resource $innerstack['-1']");
1.97 albertel 556: &end_tag(\@innerstack,\@innerparstack,$tokenpat);
1.43 albertel 557: }
1.84 albertel 558: $partstring = &callsub("end_$tokenpat->[1]", $target, $tokenpat,
559: \@innerstack, \@innerparstack, \@pat,
560: $safeeval, $style_for_target);
1.57 albertel 561: } else {
562: &Apache::lonxml::error("Unknown token event :$tokenpat->[0]:$tokenpat->[1]:");
1.16 albertel 563: }
564: #pass both the variable to the style tag, and the tag we
565: #are processing inside the <definedtag>
566: if ( $partstring ne "" ) {
567: if ( $#parstack > -1 ) {
568: if ( $#innerparstack > -1 ) {
569: $decls= $parstack[$#parstack].$innerparstack[$#innerparstack];
570: } else {
571: $decls= $parstack[$#parstack];
572: }
573: } else {
574: if ( $#innerparstack > -1 ) {
575: $decls=$innerparstack[$#innerparstack];
576: } else {
577: $decls='';
578: }
579: }
580: $output .= &Apache::run::evaluate($partstring,$safeeval,$decls);
581: $partstring = '';
582: }
1.17 albertel 583: if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack;
1.19 albertel 584: &decreasedepth($tokenpat);}
1.15 albertel 585: }
1.16 albertel 586: pop @pat;
1.23 albertel 587: pop @Apache::lonxml::pwd;
1.15 albertel 588: }
589: return $output;
1.7 albertel 590: }
591:
592: sub callsub {
1.84 albertel 593: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 594: my $currentstring='';
1.72 albertel 595: my $nodefault;
1.7 albertel 596: {
1.59 albertel 597: my $sub1;
1.7 albertel 598: no strict 'refs';
1.68 www 599: my $tag=$token->[1];
600: my $space=$Apache::lonxml::alltags{$tag};
601: if (!$space) {
602: $tag=~tr/A-Z/a-z/;
603: $sub=~tr/A-Z/a-z/;
604: $space=$Apache::lonxml::alltags{$tag}
605: }
1.97 albertel 606:
607: my $deleted=0;
608: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
609: if (($token->[0] eq 'S') && ($target eq 'modified')) {
610: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
611: $parstack,$parser,$safeeval,
612: $style);
613: }
614: if (!$deleted) {
615: if ($space) {
616: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode<br />\n");
617: $sub1="$space\:\:$sub";
618: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
619: $parstack,$parser,$safeeval,
620: $style);
621: } else {
622: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode<br />\n");
623: if ($metamode <1) {
624: if (defined($token->[4]) && ($metamode < 1)) {
625: $currentstring = $token->[4];
626: } else {
627: $currentstring = $token->[2];
628: }
1.62 sakharuk 629: }
1.7 albertel 630: }
1.97 albertel 631: # &Apache::lonxml::debug("nodefalt:$nodefault:");
632: if ($currentstring eq '' && $nodefault eq '') {
633: if ($target eq 'edit') {
634: &Apache::lonxml::debug("doing default edit for $token->[1]");
635: if ($token->[0] eq 'S') {
636: $currentstring = &Apache::edit::tag_start($target,$token);
637: } elsif ($token->[0] eq 'E') {
638: $currentstring = &Apache::edit::tag_end($target,$token);
639: }
640: } elsif ($target eq 'modified') {
641: if ($token->[0] eq 'S') {
642: $currentstring = $token->[4];
643: $currentstring.=&Apache::edit::handle_insert();
644: } else {
645: $currentstring = $token->[2];
646: }
1.72 albertel 647: }
648: }
1.7 albertel 649: }
650: use strict 'refs';
651: }
652: return $currentstring;
1.82 ng 653: }
654:
1.96 albertel 655: sub setup_globals {
656: my ($target)=@_;
1.99 albertel 657: $Apache::lonxml::registered = 0;
1.101 albertel 658: @Apache::lonxml::pwd=();
1.96 albertel 659: if ($target eq 'meta') {
660: $Apache::lonxml::redirection = 0;
661: $Apache::lonxml::metamode = 1;
662: $Apache::lonxml::evaluate = 1;
663: $Apache::lonxml::import = 0;
664: } elsif ($target eq 'grade') {
665: &startredirection;
666: $Apache::lonxml::metamode = 0;
667: $Apache::lonxml::evaluate = 1;
668: $Apache::lonxml::import = 1;
669: } elsif ($target eq 'modified') {
670: $Apache::lonxml::redirection = 0;
671: $Apache::lonxml::metamode = 0;
672: $Apache::lonxml::evaluate = 0;
673: $Apache::lonxml::import = 0;
674: } elsif ($target eq 'edit') {
675: $Apache::lonxml::redirection = 0;
676: $Apache::lonxml::metamode = 0;
677: $Apache::lonxml::evaluate = 0;
678: $Apache::lonxml::import = 0;
679: } else {
680: $Apache::lonxml::redirection = 0;
681: $Apache::lonxml::metamode = 0;
682: $Apache::lonxml::evaluate = 1;
683: $Apache::lonxml::import = 1;
684: }
685: }
686:
1.82 ng 687: sub init_safespace {
688: my ($target,$safeeval,$safehole,$safeinit) = @_;
689: $safeeval->permit("entereval");
690: $safeeval->permit(":base_math");
691: $safeeval->permit("sort");
692: $safeeval->deny(":base_io");
1.102 albertel 693: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.82 ng 694: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
695:
696: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
697: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
698: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
699: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
700: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
701: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
702: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
703: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
704: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
705: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
706: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
707: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
708: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
709: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
710: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
711: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
712: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
713: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
714: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.91 ng 715: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
716: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
717: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
718: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
719: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
720: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
721: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
722: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
723: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
724: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
725: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 726: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 727: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
728: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
729: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
730: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
731: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
732: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
733: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
734: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
735: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
736:
1.82 ng 737: #need to inspect this class of ops
738: # $safeeval->deny(":base_orig");
1.91 ng 739: $safeinit .= ';$external::target="'.$target.'";';
1.121 albertel 740: my $rndseed;
1.123 ! albertel 741: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
! 742: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
1.121 albertel 743: $safeinit .= ';$external::randomseed='.$rndseed.';';
1.82 ng 744: &Apache::run::run($safeinit,$safeeval);
1.17 albertel 745: }
746:
1.55 albertel 747: sub startredirection {
748: $Apache::lonxml::redirection++;
749: push (@Apache::lonxml::outputstack, '');
750: }
751:
752: sub endredirection {
753: if (!$Apache::lonxml::redirection) {
1.72 albertel 754: &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
1.55 albertel 755: return '';
756: }
757: $Apache::lonxml::redirection--;
758: pop @Apache::lonxml::outputstack;
1.97 albertel 759: }
760:
761: sub end_tag {
762: my ($tagstack,$parstack,$token)=@_;
763: pop(@$tagstack);
764: pop(@$parstack);
765: &decreasedepth($token);
1.55 albertel 766: }
767:
1.17 albertel 768: sub initdepth {
769: @Apache::lonxml::depthcounter=();
770: $Apache::lonxml::depth=-1;
771: $Apache::lonxml::olddepth=-1;
772: }
773:
774: sub increasedepth {
1.19 albertel 775: my ($token) = @_;
1.17 albertel 776: $Apache::lonxml::depth++;
777: $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
778: if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
779: $Apache::lonxml::olddepth=$Apache::lonxml::depth;
780: }
1.42 albertel 781: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 782: &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
1.54 albertel 783: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 784: }
785:
786: sub decreasedepth {
1.19 albertel 787: my ($token) = @_;
1.17 albertel 788: $Apache::lonxml::depth--;
1.36 albertel 789: if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
790: $#Apache::lonxml::depthcounter--;
791: $Apache::lonxml::olddepth=$Apache::lonxml::depth+1;
792: }
1.43 albertel 793: if ( $Apache::lonxml::depth < -1) {
1.49 albertel 794: &Apache::lonxml::warning("Unbalanced tags in resource");
1.43 albertel 795: $Apache::lonxml::depth='-1';
796: }
1.42 albertel 797: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 798: &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n");
1.54 albertel 799: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 800: }
1.19 albertel 801:
802: sub get_all_text {
803:
804: my($tag,$pars)= @_;
805: my $depth=0;
806: my $token;
807: my $result='';
1.57 albertel 808: if ( $tag =~ m:^/: ) {
809: my $tag=substr($tag,1);
810: # &Apache::lonxml::debug("have:$tag:");
811: while (($depth >=0) && ($token = $pars->get_token)) {
812: # &Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]");
813: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
814: $result.=$token->[1];
815: } elsif ($token->[0] eq 'PI') {
816: $result.=$token->[2];
817: } elsif ($token->[0] eq 'S') {
818: if ($token->[1] eq $tag) { $depth++; }
819: $result.=$token->[4];
820: } elsif ($token->[0] eq 'E') {
821: if ( $token->[1] eq $tag) { $depth--; }
822: #skip sending back the last end tag
823: if ($depth > -1) { $result.=$token->[2]; } else {
824: $pars->unget_token($token);
825: }
826: }
827: }
828: } else {
829: while ($token = $pars->get_token) {
830: # &Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
831: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
832: $result.=$token->[1];
833: } elsif ($token->[0] eq 'PI') {
834: $result.=$token->[2];
835: } elsif ($token->[0] eq 'S') {
836: if ( $token->[1] eq $tag) {
837: $pars->unget_token($token); last;
838: } else {
839: $result.=$token->[4];
840: }
841: } elsif ($token->[0] eq 'E') {
842: $result.=$token->[2];
1.36 albertel 843: }
1.19 albertel 844: }
845: }
1.49 albertel 846: # &Apache::lonxml::debug("Exit:$result:");
1.19 albertel 847: return $result
848: }
849:
1.23 albertel 850: sub newparser {
851: my ($parser,$contentref,$dir) = @_;
852: push (@$parser,HTML::TokeParser->new($contentref));
1.56 albertel 853: $$parser['-1']->xml_mode('1');
1.23 albertel 854: if ( $dir eq '' ) {
855: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
856: } else {
857: push (@Apache::lonxml::pwd, $dir);
858: }
859: # &Apache::lonxml::debug("pwd:$#Apache::lonxml::pwd");
860: # &Apache::lonxml::debug("pwd:$Apache::lonxml::pwd[$#Apache::lonxml::pwd]");
861: }
1.1 sakharuk 862:
1.8 albertel 863: sub parstring {
864: my ($token) = @_;
865: my $temp='';
1.20 albertel 866: map {
1.35 www 867: unless ($_=~/\W/) {
1.42 albertel 868: my $val=$token->[2]->{$_};
1.53 albertel 869: $val =~ s/([\%\@\\])/\\$1/g;
1.51 albertel 870: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1.42 albertel 871: $temp .= "my \$$_=\"$val\";"
1.20 albertel 872: }
873: } @{$token->[3]};
1.8 albertel 874: return $temp;
875: }
1.22 albertel 876:
1.34 www 877: sub writeallows {
878: my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
1.111 www 879: if ($ENV{'httpref.'.$thisurl}) {
880: $thisurl=$ENV{'httpref.'.$thisurl};
881: }
1.34 www 882: my $thisdir=$thisurl;
883: $thisdir=~s/\/[^\/]+$//;
884: my %httpref=();
885: map {
886: $httpref{'httpref.'.
887: &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; } @extlinks;
888: &Apache::lonnet::appenv(%httpref);
889: }
890:
1.66 www 891: #
892: # Afterburner handles anchors, highlights and links
893: #
894: sub afterburn {
895: my $result=shift;
896: map {
897: my ($name, $value) = split(/=/,$_);
898: $value =~ tr/+/ /;
899: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
900: if (($name eq 'highlight')||($name eq 'anchor')||($name eq 'link')) {
901: unless ($ENV{'form.'.$name}) {
902: $ENV{'form.'.$name}=$value;
903: }
904: }
905: } (split(/&/,$ENV{'QUERY_STRING'}));
906: if ($ENV{'form.highlight'}) {
907: map {
908: my $anchorname=$_;
909: my $matchthis=$anchorname;
910: $matchthis=~s/\_+/\\s\+/g;
911: $result=~s/($matchthis)/\<font color=\"red\"\>$1\<\/font\>/gs;
912: } split(/\,/,$ENV{'form.highlight'});
913: }
914: if ($ENV{'form.link'}) {
915: map {
916: my ($anchorname,$linkurl)=split(/\>/,$_);
917: my $matchthis=$anchorname;
918: $matchthis=~s/\_+/\\s\+/g;
919: $result=~s/($matchthis)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
920: } split(/\,/,$ENV{'form.link'});
921: }
922: if ($ENV{'form.anchor'}) {
923: my $anchorname=$ENV{'form.anchor'};
924: my $matchthis=$anchorname;
925: $matchthis=~s/\_+/\\s\+/g;
926: $result=~s/($matchthis)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
927: $result.=(<<"ENDSCRIPT");
928: <script>
929: document.location.hash='$anchorname';
930: </script>
931: ENDSCRIPT
932: }
933: return $result;
934: }
935:
1.79 www 936: sub storefile {
937: my ($file,$contents)=@_;
938: if (my $fh=Apache::File->new('>'.$file)) {
939: print $fh $contents;
940: $fh->close();
941: }
942: }
943:
1.78 www 944: sub inserteditinfo {
945: my ($result,$filecontents)=@_;
946: unless ($filecontents) {
947: $filecontents=(<<SIMPLECONTENT);
948: <html>
949: <head>
950: <title>
951: Title of Document Goes Here
952: </title>
953: </head>
954: <body bgcolor="#FFFFFF">
955:
956: Body of Document Goes Here
957:
958: </body>
959: </html>
960: SIMPLECONTENT
961: }
962: my $editheader='<a href="#editsection">Edit below</a><hr />';
963: my $editfooter=(<<ENDFOOTER);
964: <hr />
965: <a name="editsection" />
966: <form method="post">
967: <textarea cols="80" rows="40" name="filecont">$filecontents</textarea>
968: <br />
1.107 www 969: <input type="submit" name="attemptclean"
970: value="Save and then attempt to clean HTML" />
971: <input type="submit" name="savethisfile" value="Save this" />
1.78 www 972: </form>
973: ENDFOOTER
974: $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
975: $result=~s/(\<\/body\>)/$editfooter/is;
976: return $result;
977: }
978:
1.24 sakharuk 979: sub handler {
980: my $request=shift;
1.68 www 981:
1.64 albertel 982: my $target='web';
1.68 www 983:
1.65 albertel 984: $Apache::lonxml::debug=0;
1.68 www 985:
1.25 sakharuk 986: if ($ENV{'browser.mathml'}) {
1.27 albertel 987: $request->content_type('text/xml');
988: } else {
989: $request->content_type('text/html');
1.25 sakharuk 990: }
1.64 albertel 991:
1.27 albertel 992: $request->send_http_header;
1.64 albertel 993:
1.45 www 994: return OK if $request->header_only;
1.27 albertel 995:
1.79 www 996:
997: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.78 www 998: #
999: # Edit action? Save file.
1000: #
1001: unless ($ENV{'request.state'} eq 'published') {
1.107 www 1002: if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
1.79 www 1003: &storefile($file,$ENV{'form.filecont'});
1.78 www 1004: }
1005: }
1.24 sakharuk 1006: my %mystyle;
1.50 albertel 1007: my $result = '';
1008: my $filecontents=&Apache::lonnet::getfile($file);
1009: if ($filecontents == -1) {
1.78 www 1010: $result=(<<ENDNOTFOUND);
1011: <html>
1012: <head>
1013: <title>File not found</title>
1014: </head>
1015: <body bgcolor="#FFFFFF">
1016: <b>File not found: $file</b>
1017: </body>
1018: </html>
1019: ENDNOTFOUND
1.50 albertel 1020: $filecontents='';
1021: } else {
1.107 www 1022: unless ($ENV{'request.state'} eq 'published') {
1023: if ($ENV{'form.attemptclean'}) {
1024: $filecontents=&htmlclean($filecontents,1);
1025: }
1026: }
1.50 albertel 1027: $result = &Apache::lonxml::xmlparse($target,$filecontents,'',%mystyle);
1.78 www 1028: }
1029:
1030: #
1031: # Edit action? Insert editing commands
1032: #
1033: unless ($ENV{'request.state'} eq 'published') {
1034: $result=&inserteditinfo($result,$filecontents);
1.66 www 1035: }
1.50 albertel 1036:
1.67 www 1037: $request->print($result);
1.64 albertel 1038:
1.34 www 1039: writeallows($request->uri);
1.45 www 1040: return OK;
1.24 sakharuk 1041: }
1042:
1.22 albertel 1043: sub debug {
1044: if ($Apache::lonxml::debug eq 1) {
1.96 albertel 1045: print("DEBUG:".$_[0]."<br />\n");
1.22 albertel 1046: }
1047: }
1.49 albertel 1048:
1.22 albertel 1049: sub error {
1.74 albertel 1050: if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
1.55 albertel 1051: print "<b>ERROR:</b>".$_[0]."<br />\n";
1.52 albertel 1052: } else {
1053: print "<b>An Error occured while processing this resource. The instructor has been notified.</b> <br />";
1054: #notify author
1055: &Apache::lonmsg::author_res_msg($ENV{'request.filename'},$_[0]);
1056: #notify course
1057: if ( $ENV{'request.course.id'} ) {
1058: my $users=$ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'};
1059: foreach my $user (split /\,/, $users) {
1060: ($user,my $domain) = split /:/, $user;
1.54 albertel 1061: &Apache::lonmsg::user_normal_msg($user,$domain,"Error in $ENV{'request.filename'}",$_[0]);
1.52 albertel 1062: }
1063: }
1.74 albertel 1064:
1.52 albertel 1065: #FIXME probably shouldn't have me get everything forever.
1.54 albertel 1066: &Apache::lonmsg::user_normal_msg('albertel','msu',"Error in $ENV{'request.filename'}",$_[0]);
1.74 albertel 1067: #&Apache::lonmsg::user_normal_msg('albertel','103',"Error in $ENV{'request.filename'}",$_[0]);
1.52 albertel 1068: }
1.22 albertel 1069: }
1.49 albertel 1070:
1.22 albertel 1071: sub warning {
1.73 harris41 1072: if ($ENV{'request.state'} eq 'construct') {
1.55 albertel 1073: print "<b>W</b>ARNING<b>:</b>".$_[0]."<br />\n";
1.73 harris41 1074: }
1.83 albertel 1075: }
1076:
1077: sub get_param {
1078: my ($param,$parstack,$safeeval,$context) = @_;
1079: if ( ! $context ) { $context = -1; }
1080: my $args ='';
1081: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1082: return &Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.22 albertel 1083: }
1084:
1.74 albertel 1085: sub register_insert {
1.75 albertel 1086: my @data = split /\n/, &Apache::lonnet::getfile('/home/httpd/lonTabs/insertlist.tab');
1.74 albertel 1087: my $i;
1.76 albertel 1088: my $tagnum=0;
1.74 albertel 1089: my @order;
1090: for ($i=0;$i < $#data; $i++) {
1091: my $line = $data[$i];
1092: if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; }
1093: if ( $line =~ /TABLE/ ) { last; }
1.92 albertel 1094: my ($tag,$descrip,$color,$function,$show) = split(/,/, $line);
1.76 albertel 1095: $insertlist{"$tagnum.tag"} = $tag;
1096: $insertlist{"$tagnum.description"} = $descrip;
1.92 albertel 1097: $insertlist{"$tagnum.color"} = $color;
1.76 albertel 1098: $insertlist{"$tagnum.function"} = $function;
1099: $insertlist{"$tagnum.show"}= $show;
1.92 albertel 1100: $insertlist{"$tag.num"}=$tagnum;
1.76 albertel 1101: $tagnum++;
1.74 albertel 1102: }
1.76 albertel 1103: $i++; #skipping TABLE line
1104: $tagnum = 0;
1.74 albertel 1105: for (;$i < $#data;$i++) {
1106: my $line = $data[$i];
1.76 albertel 1107: my ($mnemonic,@which) = split(/ +/,$line);
1108: my $tag = $insertlist{"$tagnum.tag"};
1.74 albertel 1109: for (my $j=0;$j <$#which;$j++) {
1110: if ( $which[$j] eq 'Y' ) {
1.76 albertel 1111: if ($insertlist{"$j.show"} ne 'no') {
1112: push(@{ $insertlist{"$tag.which"} },$j);
1113: }
1.74 albertel 1114: }
1115: }
1.76 albertel 1116: $tagnum++;
1.74 albertel 1117: }
1118: }
1.98 albertel 1119:
1120: sub description {
1121: my ($token)=@_;
1122: return $insertlist{$insertlist{"$token->[1].num"}.'.description'};
1123: }
1.123 ! albertel 1124:
! 1125: # ----------------------------------------------------------------- whichuser
! 1126: # returns a list of $symb, $courseid, $domain, $name that is correct for
! 1127: # calls to lonnet functions for this setup.
! 1128: # - looks for form.grade_ parameters
! 1129: sub whichuser {
! 1130: my $symb=&Apache::lonnet::symbread();
! 1131: my $courseid=$ENV{'request.course.id'};
! 1132: my $domain=$ENV{'user.domain'};
! 1133: my $name=$ENV{'user.name'};
! 1134: if (defined($ENV{'form.grade_symb'})) {
! 1135: my $tmp_courseid=$ENV{'form.grade_courseid'};
! 1136: my $allowed=&Apache::lonnet::allowed('mgr',$tmp_courseid);
! 1137: if ($allowed) {
! 1138: $symb=$ENV{'form.grade_symb'};
! 1139: $courseid=$ENV{'form.grade_courseid'};
! 1140: $domain=$ENV{'form.grade_domain'};
! 1141: $name=$ENV{'form.grade_username'};
! 1142: }
! 1143: }
! 1144: return ($symb,$courseid,$domain,$name);
! 1145: }
! 1146:
1.1 sakharuk 1147: 1;
1148: __END__
1.68 www 1149:
1150:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonxml.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / xml