Annotation of loncom/xml/lonxml.pm, revision 1.326
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.326 ! albertel 4: # $Id: lonxml.pm,v 1.325 2004/06/12 01:09:31 www 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: #
1.316 albertel 39:
1.2 sakharuk 40:
1.4 albertel 41: package Apache::lonxml;
1.33 www 42: use vars
1.320 www 43: qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount @htmlareafields);
1.1 sakharuk 44: use strict;
1.167 albertel 45: use HTML::LCParser();
1.161 albertel 46: use HTML::TreeBuilder();
47: use HTML::Entities();
48: use Safe();
49: use Safe::Hole();
50: use Math::Cephes();
51: use Math::Random();
52: use Opcode();
1.271 www 53: use POSIX qw(strftime);
1.72 albertel 54:
1.266 bowersj2 55:
1.72 albertel 56: sub register {
1.141 albertel 57: my ($space,@taglist) = @_;
58: foreach my $temptag (@taglist) {
59: push(@{ $Apache::lonxml::alltags{$temptag} },$space);
1.72 albertel 60: }
61: }
62:
1.141 albertel 63: sub deregister {
64: my ($space,@taglist) = @_;
65: foreach my $temptag (@taglist) {
66: my $tempspace = $Apache::lonxml::alltags{$temptag}[-1];
67: if ($tempspace eq $space) {
68: pop(@{ $Apache::lonxml::alltags{$temptag} });
69: }
70: }
1.142 albertel 71: #&printalltags();
1.141 albertel 72: }
73:
1.46 www 74: use Apache::Constants qw(:common);
1.161 albertel 75: use Apache::lontexconvert();
76: use Apache::style();
77: use Apache::run();
78: use Apache::londefdef();
79: use Apache::scripttag();
1.285 www 80: use Apache::languagetags();
1.161 albertel 81: use Apache::edit();
1.266 bowersj2 82: use Apache::inputtags();
83: use Apache::outputtags();
1.161 albertel 84: use Apache::lonnet();
85: use Apache::File();
86: use Apache::loncommon();
1.198 www 87: use Apache::lonfeedback();
1.200 www 88: use Apache::lonmsg();
1.217 matthew 89: use Apache::loncacc();
1.280 www 90: use Apache::lonlocal;
1.79 www 91:
1.72 albertel 92: #================================================== Main subroutine: xmlparse
93: #debugging control, to turn on debugging modify the correct handler
94: $Apache::lonxml::debug=0;
1.206 albertel 95:
96: # keeps count of the number of warnings and errors generated in a parse
97: $warningcount=0;
98: $errorcount=0;
1.72 albertel 99:
100: #path to the directory containing the file currently being processed
101: @pwd=();
102:
103: #these two are used for capturing a subset of the output for later processing,
104: #don't touch them directly use &startredirection and &endredirection
105: @outputstack = ();
106: $redirection = 0;
107:
108: #controls wheter the <import> tag actually does
109: $import = 1;
110: @extlinks=();
111:
112: # meta mode is a bit weird only some output is to be turned off
113: #<output> tag turns metamode off (defined in londefdef.pm)
114: $metamode = 0;
115:
116: # turns on and of run::evaluate actually derefencing var refs
117: $evaluate = 1;
1.7 albertel 118:
1.74 albertel 119: # data structure for eidt mode, determines what tags can go into what other tags
120: %insertlist=();
1.68 www 121:
1.99 albertel 122: # stores the list of active tag namespaces
1.76 albertel 123: @namespace=();
124:
1.99 albertel 125: # has the dynamic menu been updated to know about this resource
126: $Apache::lonxml::registered=0;
127:
1.172 albertel 128: # a pointer the the Apache request object
129: $Apache::lonxml::request='';
130:
1.216 sakharuk 131: # a problem number counter, and check on ether it is used
1.237 sakharuk 132: $Apache::lonxml::counter=1;
1.204 albertel 133: $Apache::lonxml::counter_changed=0;
134:
1.212 albertel 135: #internal check on whether to look at style defs
136: $Apache::lonxml::usestyle=1;
1.260 albertel 137:
138: #locations used to store the parameter string for style substitutions
139: $Apache::lonxml::style_values='';
140: $Apache::lonxml::style_end_values='';
1.212 albertel 141:
1.281 albertel 142: #array of ssi calls that need to occur after we are done parsing
143: @Apache::lonxml::ssi_info=();
144:
1.282 albertel 145: #should we do the postag variable interpolation
146: $Apache::lonxml::post_evaluate=1;
147:
1.295 albertel 148: #a header message to emit in the case of any generated warning or errors
149: $Apache::lonxml::warnings_error_header='';
150:
1.68 www 151: sub xmlbegin {
152: my $output='';
1.325 www 153: @htmlareafields=();
1.68 www 154: if ($ENV{'browser.mathml'}) {
155: $output='<?xml version="1.0"?>'
156: .'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'
157: .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
158: .'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>'
159: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
160: .'xmlns="http://www.w3.org/TR/REC-html40">';
161: } else {
162: $output='<html>';
163: }
164: return $output;
165: }
166:
167: sub xmlend {
1.278 www 168: my $mode='xml';
169: my $status='OPEN';
170: if ($Apache::lonhomework::parsing_a_problem) {
171: $mode='problem';
172: $status=$Apache::inputtags::status[-1];
173: }
1.298 albertel 174: return &Apache::lonfeedback::list_discussion($mode,$status).'</html>';
1.119 www 175: }
176:
177: sub tokeninputfield {
1.120 www 178: my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
179: $defhost=~tr/a-z/A-Z/;
1.119 www 180: return (<<ENDINPUTFIELD)
1.226 albertel 181: <script type="text/javascript">
1.120 www 182: function updatetoken() {
183: var comp=new Array;
184: var barcode=unescape(document.tokeninput.barcode.value);
185: comp=barcode.split('*');
186: if (typeof(comp[0])!="undefined") {
187: document.tokeninput.codeone.value=comp[0];
188: }
189: if (typeof(comp[1])!="undefined") {
190: document.tokeninput.codetwo.value=comp[1];
191: }
192: if (typeof(comp[2])!="undefined") {
193: comp[2]=comp[2].toUpperCase();
194: document.tokeninput.codethree.value=comp[2];
195: }
196: document.tokeninput.barcode.value='';
197: }
198: </script>
199: <form method="post" name="tokeninput">
1.119 www 200: <table border="2" bgcolor="#FFFFBB">
201: <tr><th>DocID Checkin</th></tr>
202: <tr><td>
203: <table>
204: <tr>
205: <td>Scan in Barcode</td>
1.120 www 206: <td><input type="text" size="22" name="barcode"
207: onChange="updatetoken()"/></td>
1.119 www 208: </tr>
209: <tr><td><i>or</i> Type in DocID</td>
210: <td>
211: <input type="text" size="5" name="codeone" />
1.120 www 212: <b><font size="+2">*</font></b>
1.119 www 213: <input type="text" size="5" name="codetwo" />
1.120 www 214: <b><font size="+2">*</font></b>
215: <input type="text" size="10" name="codethree" value="$defhost"
216: onChange="this.value=this.value.toUpperCase()" />
1.119 www 217: </td></tr>
218: </table>
219: </td></tr>
220: <tr><td><input type="submit" value="Check in DocID" /></td></tr>
221: </table>
222: </form>
223: ENDINPUTFIELD
1.112 www 224: }
225:
1.116 www 226: sub maketoken {
1.118 www 227: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1.112 www 228: unless ($symb) {
229: $symb=&Apache::lonnet::symbread();
230: }
231: unless ($tuname) {
232: $tuname=$ENV{'user.name'};
233: $tudom=$ENV{'user.domain'};
234: $tcrsid=$ENV{'request.course.id'};
235: }
1.116 www 236:
1.118 www 237: return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
238: }
239:
240: sub printtokenheader {
1.133 albertel 241: my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
1.116 www 242: unless ($token) { return ''; }
1.118 www 243:
1.133 albertel 244: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
245: unless ($tsymb) {
246: $tsymb=$symb;
1.118 www 247: }
248: unless ($tuname) {
1.133 albertel 249: $tuname=$name;
250: $tudom=$domain;
251: $tcrsid=$courseid;
1.118 www 252: }
1.114 www 253:
254: my %reply=&Apache::lonnet::get('environment',
255: ['firstname','middlename','lastname','generation'],
256: $tudom,$tuname);
257: my $plainname=$reply{'firstname'}.' '.
258: $reply{'middlename'}.' '.
259: $reply{'lastname'}.' '.
260: $reply{'generation'};
261:
1.112 www 262: if ($target eq 'web') {
1.145 www 263: my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
1.115 www 264: return
1.221 albertel 265: '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
1.284 www 266: &mt('Checked out for').' '.$plainname.
267: '<br />'.&mt('User').': '.$tuname.' at '.$tudom.
268: '<br />'.&mt('ID').': '.$idhash{$tuname}.
269: '<br />'.&mt('CourseID').': '.$tcrsid.
270: '<br />'.&mt('Course').': '.$ENV{'course.'.$tcrsid.'.description'}.
271: '<br />'.&mt('DocID').': '.$token.
272: '<br />'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'<hr />';
1.112 www 273: } else {
1.121 albertel 274: return $token;
1.112 www 275: }
1.68 www 276: }
277:
1.70 www 278: sub fontsettings() {
279: my $headerstring='';
280: if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
1.248 albertel 281: $headerstring.=
282: '<meta Content-Type="text/html; charset=x-mac-roman">';
1.263 albertel 283: } elsif (!$ENV{'browser.mathml'} && $ENV{'browser.unicode'}) {
1.248 albertel 284: $headerstring.=
285: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
1.70 www 286: }
287: return $headerstring;
1.68 www 288: }
289:
1.48 albertel 290: sub printalltags {
291: my $temp;
292: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.141 albertel 293: &Apache::lonxml::debug("$temp -- ".
294: join(',',@{ $Apache::lonxml::alltags{$temp} }));
1.48 albertel 295: }
296: }
1.31 sakharuk 297:
1.3 sakharuk 298: sub xmlparse {
1.172 albertel 299: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 300:
1.172 albertel 301: &setup_globals($request,$target);
1.232 albertel 302: &Apache::inputtags::initialize_inputtags();
303: &Apache::outputtags::initialize_outputtags();
304: &Apache::edit::initialize_edit();
1.287 albertel 305: &Apache::londefdef::initialize_londefdef();
1.244 albertel 306:
1.178 www 307: #
308: # do we have a course style file?
309: #
310:
1.208 albertel 311: if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') {
1.178 www 312: my $bodytext=
313: $ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'};
314: if ($bodytext) {
315: my $location=&Apache::lonnet::filelocation('',$bodytext);
316: my $styletext=&Apache::lonnet::getfile($location);
317: if ($styletext ne '-1') {
318: %style_for_target = (%style_for_target,
319: &Apache::style::styleparser($target,$styletext));
320: }
321: }
1.292 sakharuk 322: } elsif ($ENV{'construct.style'} && ($ENV{'request.state'} eq 'construct')) {
323: my $location=&Apache::lonnet::filelocation('',$ENV{'construct.style'});
1.291 sakharuk 324: my $styletext=&Apache::lonnet::getfile($location);
325: if ($styletext ne '-1') {
326: %style_for_target = (%style_for_target,
327: &Apache::style::styleparser($target,$styletext));
328: }
1.178 www 329: }
1.255 sakharuk 330: #&printalltags();
1.16 albertel 331: my @pars = ();
1.23 albertel 332: my $pwd=$ENV{'request.filename'};
333: $pwd =~ s:/[^/]*$::;
334: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 335:
1.3 sakharuk 336: my $safeeval = new Safe;
1.40 albertel 337: my $safehole = new Safe::Hole;
1.82 ng 338: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 339: #-------------------- Redefinition of the target in the case of compound target
340:
341: ($target, my @tenta) = split('&&',$target);
342:
1.150 albertel 343: my @stack = ();
1.3 sakharuk 344: my @parstack = ();
1.17 albertel 345: &initdepth;
1.67 www 346:
1.101 albertel 347: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
348: $safeeval,\%style_for_target);
1.255 sakharuk 349:
1.125 www 350: if ($ENV{'request.uri'}) {
351: &writeallows($ENV{'request.uri'});
352: }
1.281 albertel 353: &do_registered_ssi();
1.204 albertel 354: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.3 sakharuk 355: return $finaloutput;
1.106 www 356: }
357:
358: sub htmlclean {
1.107 www 359: my ($raw,$full)=@_;
1.106 www 360:
361: my $tree = HTML::TreeBuilder->new;
362: $tree->ignore_unknown(0);
1.140 albertel 363:
1.106 www 364: $tree->parse($raw);
365:
1.107 www 366: my $output= $tree->as_HTML(undef,' ');
1.140 albertel 367:
1.161 albertel 368: $output=~s/\<(br|hr|img|meta|allow)(.*?)\>/\<$1$2 \/\>/gis;
1.111 www 369: $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
1.107 www 370: unless ($full) {
371: $output=~s/\<[\/]*(body|head|html)\>//gis;
372: }
1.106 www 373:
374: $tree = $tree->delete;
375:
376: return $output;
1.15 albertel 377: }
378:
1.191 albertel 379: sub latex_special_symbols {
1.272 albertel 380: my ($string,$where)=@_;
1.235 sakharuk 381: if ($where eq 'header') {
1.272 albertel 382: $string =~ s/(\\|_|\^)/ /g;
1.311 albertel 383: $string =~ s/(\$|%|\{|\})/\\$1/g;
1.273 sakharuk 384: $string =~ s/_/ /g;
1.311 albertel 385: $string=&Apache::lonprintout::character_chart($string);
386: # any & or # leftover should be safe to just escape
387: $string=~s/([^\\])\&/$1\\\&/g;
388: $string=~s/([^\\])\#/$1\\\#/g;
1.229 sakharuk 389: } else {
1.312 albertel 390: $string=~s/\\/\\ensuremath{\\backslash}/g;
1.313 albertel 391: $string=~s/([^\\]|^)\%/$1\\\%/g;
392: $string=~s/([^\\]|^)(\$|_)/$1\\$2/g;
1.310 sakharuk 393: $string=~s/\$\$/\$\\\$/g;
394: $string=~s/\#\#/\#\\\#/g;
1.313 albertel 395: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
1.310 sakharuk 396: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
1.311 albertel 397: $string=&Apache::lonprintout::character_chart($string);
398: # any & or # leftover should be safe to just escape
1.313 albertel 399: $string=~s/([^\\]|^)\&/$1\\\&/g;
400: $string=~s/([^\\]|^)\#/$1\\\#/g;
1.310 sakharuk 401: #single { or } How to escape?
1.229 sakharuk 402: }
1.272 albertel 403: return $string;
1.188 sakharuk 404: }
405:
1.101 albertel 406: sub inner_xmlparse {
407: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
408: my $finaloutput = '';
409: my $result;
410: my $token;
1.258 albertel 411: my $dontpop=0;
1.101 albertel 412: while ( $#$pars > -1 ) {
413: while ($token = $$pars['-1']->get_token) {
1.261 albertel 414: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
1.101 albertel 415: if ($metamode<1) {
1.190 albertel 416: my $text=$token->[1];
1.193 albertel 417: if ($token->[0] eq 'C' && $target eq 'tex') {
1.239 sakharuk 418: $text = '';
419: # $text = '%'.$text."\n";
1.182 sakharuk 420: }
1.190 albertel 421: $result.=$text;
1.101 albertel 422: }
1.261 albertel 423: } elsif (($token->[0] eq 'D')) {
424: if ($metamode<1 && $target eq 'web') {
425: my $text=$token->[1];
426: $result.=$text;
427: }
1.101 albertel 428: } elsif ($token->[0] eq 'PI') {
1.261 albertel 429: if ($metamode<1 && $target eq 'web') {
1.101 albertel 430: $result=$token->[2];
431: }
432: } elsif ($token->[0] eq 'S') {
1.140 albertel 433: # add tag to stack
1.101 albertel 434: push (@$stack,$token->[1]);
435: # add parameters list to another stack
436: push (@$parstack,&parstring($token));
1.140 albertel 437: &increasedepth($token);
1.212 albertel 438: if ($Apache::lonxml::usestyle &&
439: exists($$style_for_target{$token->[1]})) {
440: $Apache::lonxml::usestyle=0;
441: my $string=$$style_for_target{$token->[1]}.
442: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
443: &Apache::lonxml::newparser($pars,\$string);
1.257 albertel 444: $Apache::lonxml::style_values=$$parstack[-1];
1.259 albertel 445: $Apache::lonxml::style_end_values=$$parstack[-1];
1.101 albertel 446: } else {
447: $result = &callsub("start_$token->[1]", $target, $token, $stack,
448: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 449: }
1.101 albertel 450: } elsif ($token->[0] eq 'E') {
1.212 albertel 451: if ($Apache::lonxml::usestyle &&
452: exists($$style_for_target{'/'."$token->[1]"})) {
453: $Apache::lonxml::usestyle=0;
454: my $string=$$style_for_target{'/'.$token->[1]}.
1.258 albertel 455: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
1.212 albertel 456: &Apache::lonxml::newparser($pars,\$string);
1.259 albertel 457: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
458: $Apache::lonxml::style_end_values='';
1.258 albertel 459: $dontpop=1;
1.101 albertel 460: } else {
1.258 albertel 461: #clear out any tags that didn't end
462: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
463: my $lasttag=$$stack[-1];
1.317 albertel 464: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
1.258 albertel 465: &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
466: last;
467: } else {
468: &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file');
469: &end_tag($stack,$parstack,$token);
470: }
471: }
472: $result = &callsub("end_$token->[1]", $target, $token, $stack,
473: $parstack, $pars,$safeeval, $style_for_target);
1.101 albertel 474: }
475: } else {
476: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
477: }
478: #evaluate variable refs in result
1.282 albertel 479: if ($Apache::lonxml::post_evaluate &&$result ne "") {
1.257 albertel 480: my $extras;
481: if (!$Apache::lonxml::usestyle) {
482: $extras=$Apache::lonxml::style_values;
483: }
1.101 albertel 484: if ( $#$parstack > -1 ) {
1.257 albertel 485: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
1.101 albertel 486: } else {
1.257 albertel 487: $result= &Apache::run::evaluate($result,$safeeval,$extras);
1.101 albertel 488: }
1.163 albertel 489: }
1.282 albertel 490: $Apache::lonxml::post_evaluate=1;
491:
1.190 albertel 492: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
1.249 albertel 493: #Style file definitions should be correct
1.250 albertel 494: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
1.311 albertel 495: $result=&latex_special_symbols($result);
1.249 albertel 496: }
1.190 albertel 497: }
498:
1.169 albertel 499: if ($Apache::lonxml::redirection) {
500: $Apache::lonxml::outputstack['-1'] .= $result;
501: } else {
502: $finaloutput.=$result;
503: }
504: $result = '';
505:
1.258 albertel 506: if ($token->[0] eq 'E' && !$dontpop) {
1.101 albertel 507: &end_tag($stack,$parstack,$token);
508: }
1.258 albertel 509: $dontpop=0;
1.224 albertel 510: }
1.212 albertel 511: if ($#$pars > -1) {
512: pop @$pars;
513: pop @Apache::lonxml::pwd;
514: }
1.101 albertel 515: }
516:
517: # if ($target eq 'meta') {
518: # $finaloutput.=&endredirection;
519: # }
520:
1.169 albertel 521:
1.101 albertel 522: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
523: $finaloutput=&afterburn($finaloutput);
1.216 sakharuk 524: }
1.101 albertel 525: return $finaloutput;
526: }
1.67 www 527:
1.318 matthew 528: ##
529: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
530: ## otherwise do not call it as we do not know what it is.
531: ##
1.7 albertel 532: sub callsub {
1.84 albertel 533: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 534: my $currentstring='';
1.72 albertel 535: my $nodefault;
1.7 albertel 536: {
1.59 albertel 537: my $sub1;
1.7 albertel 538: no strict 'refs';
1.68 www 539: my $tag=$token->[1];
1.236 www 540: # get utterly rid of extended html tags
541: if ($tag=~/^x\-/i) { return ''; }
1.141 albertel 542: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 543: if (!$space) {
1.141 albertel 544: $tag=~tr/A-Z/a-z/;
1.68 www 545: $sub=~tr/A-Z/a-z/;
1.141 albertel 546: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 547: }
1.97 albertel 548:
549: my $deleted=0;
550: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
551: if (($token->[0] eq 'S') && ($target eq 'modified')) {
552: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
553: $parstack,$parser,$safeeval,
554: $style);
555: }
556: if (!$deleted) {
557: if ($space) {
1.220 albertel 558: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 559: $sub1="$space\:\:$sub";
560: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
561: $parstack,$parser,$safeeval,
562: $style);
563: } else {
1.318 matthew 564: if ($target eq 'tex') {
565: # throw away tag name
566: return '';
567: }
1.220 albertel 568: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 569: if ($metamode <1) {
570: if (defined($token->[4]) && ($metamode < 1)) {
571: $currentstring = $token->[4];
572: } else {
573: $currentstring = $token->[2];
574: }
1.62 sakharuk 575: }
1.7 albertel 576: }
1.97 albertel 577: # &Apache::lonxml::debug("nodefalt:$nodefault:");
578: if ($currentstring eq '' && $nodefault eq '') {
579: if ($target eq 'edit') {
1.220 albertel 580: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 581: if ($token->[0] eq 'S') {
582: $currentstring = &Apache::edit::tag_start($target,$token);
583: } elsif ($token->[0] eq 'E') {
584: $currentstring = &Apache::edit::tag_end($target,$token);
585: }
586: } elsif ($target eq 'modified') {
587: if ($token->[0] eq 'S') {
588: $currentstring = $token->[4];
589: $currentstring.=&Apache::edit::handle_insert();
1.210 www 590: } elsif ($token->[0] eq 'E') {
591: $currentstring = $token->[2];
592: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 593: } else {
594: $currentstring = $token->[2];
595: }
1.72 albertel 596: }
597: }
1.7 albertel 598: }
599: use strict 'refs';
600: }
601: return $currentstring;
1.82 ng 602: }
603:
1.96 albertel 604: sub setup_globals {
1.172 albertel 605: my ($request,$target)=@_;
606: $Apache::lonxml::request=$request;
1.99 albertel 607: $Apache::lonxml::registered = 0;
1.325 www 608: @Apache::lonxml::htmlareafields=();
1.205 www 609: $errorcount=0;
610: $warningcount=0;
1.207 albertel 611: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 612: $Apache::lonxml::usestyle=1;
1.204 albertel 613: &init_counter();
1.101 albertel 614: @Apache::lonxml::pwd=();
1.124 albertel 615: @Apache::lonxml::extlinks=();
1.281 albertel 616: @Apache::lonxml::ssi_info=();
1.282 albertel 617: $Apache::lonxml::post_evaluate=1;
1.295 albertel 618: $Apache::lonxml::warnings_error_header='';
1.96 albertel 619: if ($target eq 'meta') {
620: $Apache::lonxml::redirection = 0;
621: $Apache::lonxml::metamode = 1;
622: $Apache::lonxml::evaluate = 1;
623: $Apache::lonxml::import = 0;
1.129 albertel 624: } elsif ($target eq 'answer') {
625: $Apache::lonxml::redirection = 0;
626: $Apache::lonxml::metamode = 1;
627: $Apache::lonxml::evaluate = 1;
628: $Apache::lonxml::import = 1;
1.96 albertel 629: } elsif ($target eq 'grade') {
630: &startredirection;
631: $Apache::lonxml::metamode = 0;
632: $Apache::lonxml::evaluate = 1;
633: $Apache::lonxml::import = 1;
634: } elsif ($target eq 'modified') {
635: $Apache::lonxml::redirection = 0;
636: $Apache::lonxml::metamode = 0;
637: $Apache::lonxml::evaluate = 0;
638: $Apache::lonxml::import = 0;
639: } elsif ($target eq 'edit') {
640: $Apache::lonxml::redirection = 0;
641: $Apache::lonxml::metamode = 0;
642: $Apache::lonxml::evaluate = 0;
643: $Apache::lonxml::import = 0;
1.163 albertel 644: } elsif ($target eq 'analyze') {
645: $Apache::lonxml::redirection = 0;
646: $Apache::lonxml::metamode = 0;
647: $Apache::lonxml::evaluate = 1;
648: $Apache::lonxml::import = 1;
1.96 albertel 649: } else {
650: $Apache::lonxml::redirection = 0;
651: $Apache::lonxml::metamode = 0;
652: $Apache::lonxml::evaluate = 1;
653: $Apache::lonxml::import = 1;
654: }
655: }
656:
1.82 ng 657: sub init_safespace {
658: my ($target,$safeeval,$safehole,$safeinit) = @_;
659: $safeeval->permit("entereval");
660: $safeeval->permit(":base_math");
661: $safeeval->permit("sort");
1.286 albertel 662: $safeeval->permit("time");
1.82 ng 663: $safeeval->deny(":base_io");
1.102 albertel 664: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.251 albertel 665: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
1.82 ng 666: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
1.324 albertel 667: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
668: '&chem_standard_order');
669:
1.82 ng 670: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
671: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
672: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
673: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
674: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
675: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
676: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
677: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
678: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
679: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
680: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
681: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
682: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
683: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
684: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
685: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
686: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
687: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
688: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 689:
690: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
691: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
692: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
693: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
694: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
695: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
696: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
697: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
698: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
699: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
700: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
701: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
702: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
703: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
704: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
705: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
706: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
707: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
708: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
709: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
710: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
711: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
712:
713: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
714: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
715: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
716: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
717: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
718: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
719:
1.91 ng 720: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
721: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
722: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
723: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
724: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
725: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
726: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
727: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
728: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
729: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
730: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 731: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 732: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
733: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
734: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
735: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
736: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
737: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
738: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
739: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
740: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
1.305 albertel 741: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
1.311 albertel 742: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
1.322 albertel 743: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
1.91 ng 744:
1.82 ng 745: #need to inspect this class of ops
746: # $safeeval->deny(":base_orig");
1.91 ng 747: $safeinit .= ';$external::target="'.$target.'";';
1.121 albertel 748: my $rndseed;
1.123 albertel 749: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
750: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
1.319 albertel 751: $safeinit .= ';$external::randomseed="'.$rndseed.'";';
1.249 albertel 752: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.82 ng 753: &Apache::run::run($safeinit,$safeeval);
1.303 albertel 754:
755: my $subroutine=<<'EVALUATESUB';
756: sub __LC_INTERNAL_EVALUATE__ {
757: my ($__LC__a,$__LC__b,$__LC__c)=@_;
758: my $__LC__prefix;
759: while(1){
760: {
1.306 albertel 761: use strict;
762: no strict "vars";
1.303 albertel 763: if (eval(defined(eval($__LC__a.$__LC__b)))) {
1.306 albertel 764: return $__LC__prefix.eval($__LC__a.$__LC__b.$__LC__c);
1.303 albertel 765: }
766: }
767: $__LC__prefix.=substr($__LC__a,0,1,"");
768: if ($__LC__a!~/^(\$|&|\#)/) { last; }
769: }
1.306 albertel 770: return $__LC__prefix.$__LC__a.$__LC__b.$__LC__c;
1.303 albertel 771: }
772: EVALUATESUB
773: $safeeval->permit("require");
774: $safeeval->reval($subroutine);
775: $safeeval->deny("require");
1.207 albertel 776: }
777:
778: sub default_homework_load {
779: my ($safeeval)=@_;
780: &Apache::lonxml::debug('Loading default_homework');
781: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
1.241 albertel 782: if ($default eq -1) {
1.207 albertel 783: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
784: } else {
785: &Apache::run::run($default,$safeeval);
786: $Apache::lonxml::default_homework_loaded=1;
787: }
1.17 albertel 788: }
789:
1.55 albertel 790: sub startredirection {
791: $Apache::lonxml::redirection++;
792: push (@Apache::lonxml::outputstack, '');
793: }
794:
795: sub endredirection {
796: if (!$Apache::lonxml::redirection) {
1.72 albertel 797: &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
1.55 albertel 798: return '';
799: }
800: $Apache::lonxml::redirection--;
801: pop @Apache::lonxml::outputstack;
1.97 albertel 802: }
803:
804: sub end_tag {
805: my ($tagstack,$parstack,$token)=@_;
806: pop(@$tagstack);
807: pop(@$parstack);
808: &decreasedepth($token);
1.55 albertel 809: }
810:
1.17 albertel 811: sub initdepth {
812: @Apache::lonxml::depthcounter=();
813: $Apache::lonxml::depth=-1;
814: $Apache::lonxml::olddepth=-1;
815: }
816:
817: sub increasedepth {
1.19 albertel 818: my ($token) = @_;
1.17 albertel 819: $Apache::lonxml::depth++;
820: $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
821: if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
822: $Apache::lonxml::olddepth=$Apache::lonxml::depth;
823: }
1.42 albertel 824: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 825: &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
1.54 albertel 826: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 827: }
828:
829: sub decreasedepth {
1.19 albertel 830: my ($token) = @_;
1.17 albertel 831: $Apache::lonxml::depth--;
1.36 albertel 832: if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
833: $#Apache::lonxml::depthcounter--;
834: $Apache::lonxml::olddepth=$Apache::lonxml::depth+1;
835: }
1.43 albertel 836: if ( $Apache::lonxml::depth < -1) {
1.280 www 837: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1.43 albertel 838: $Apache::lonxml::depth='-1';
839: }
1.42 albertel 840: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 841: &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n");
1.54 albertel 842: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 843: }
1.19 albertel 844:
1.180 albertel 845: sub get_all_text_unbalanced {
1.190 albertel 846: #there is a copy of this in lonpublisher.pm
1.326 ! albertel 847: my($tag,$pars)= @_;
! 848: my $token;
! 849: my $result='';
! 850: $tag='<'.$tag.'>';
! 851: while ($token = $$pars[-1]->get_token) {
! 852: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
! 853: $result.=$token->[1];
! 854: } elsif ($token->[0] eq 'PI') {
! 855: $result.=$token->[2];
! 856: } elsif ($token->[0] eq 'S') {
! 857: $result.=$token->[4];
! 858: } elsif ($token->[0] eq 'E') {
! 859: $result.=$token->[2];
! 860: }
! 861: if ($result =~ /\Q$tag\E/is) {
! 862: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
! 863: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
! 864: #&Apache::lonxml::debug('Result is :'.$1);
! 865: $redo=$tag.$redo;
! 866: &Apache::lonxml::newparser($pars,\$redo);
! 867: last;
! 868: }
! 869: }
! 870: return $result
1.204 albertel 871: }
872:
873: sub increment_counter {
1.247 albertel 874: my ($increment) = @_;
1.289 sakharuk 875: if (defined($increment) && $increment gt 0) {
876: $Apache::lonxml::counter+=$increment;
877: } else {
878: $Apache::lonxml::counter++;
1.247 albertel 879: }
1.289 sakharuk 880: $Apache::lonxml::counter_changed=1;
1.204 albertel 881: }
882:
883: sub init_counter {
884: if (defined($ENV{'form.counter'})) {
885: $Apache::lonxml::counter=$ENV{'form.counter'};
1.247 albertel 886: $Apache::lonxml::counter_changed=0;
1.237 sakharuk 887: } else {
1.204 albertel 888: $Apache::lonxml::counter=1;
1.247 albertel 889: $Apache::lonxml::counter_changed=1;
1.204 albertel 890: }
891: }
892:
893: sub store_counter {
894: &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
895: return '';
1.180 albertel 896: }
897:
1.19 albertel 898: sub get_all_text {
1.270 albertel 899: my($tag,$pars,$style)= @_;
900: my $gotfullstack=1;
901: if (ref($pars) ne 'ARRAY') {
902: $gotfullstack=0;
903: $pars=[$pars];
904: }
905: if (ref($style) ne 'HASH') {
906: $style={};
907: }
908: my $depth=0;
909: my $token;
910: my $result='';
911: if ( $tag =~ m:^/: ) {
912: my $tag=substr($tag,1);
913: #&Apache::lonxml::debug("have:$tag:");
914: my $top_empty=0;
915: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
916: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
917: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
918: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
919: $result.=$token->[1];
920: } elsif ($token->[0] eq 'PI') {
921: $result.=$token->[2];
922: } elsif ($token->[0] eq 'S') {
1.316 albertel 923: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
924: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
925: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 926: $result.=$token->[4];
927: } elsif ($token->[0] eq 'E') {
1.316 albertel 928: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1.270 albertel 929: #skip sending back the last end tag
1.283 albertel 930: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1.270 albertel 931: my $string=
932: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
933: $$style{'/'.$token->[1]}.
934: $token->[2].
935: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
936: &Apache::lonxml::newparser($pars,\$string);
937: #&Apache::lonxml::debug("reParsing $string");
938: next;
939: }
940: if ($depth > -1) {
941: $result.=$token->[2];
942: } else {
943: $$pars[-1]->unget_token($token);
944: }
945: }
946: }
947: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
948: if (($depth >=0) && ($#$pars > 0) ) {
949: pop(@$pars);
950: pop(@Apache::lonxml::pwd);
951: }
952: }
953: if ($top_empty && $depth >= 0) {
954: #never found the end tag ran out of text, throw error send back blank
955: &error('Never found end tag for <'.$tag.
956: '> current string <pre>'.
1.314 albertel 957: &HTML::Entities::encode($result,'<>&"').
1.270 albertel 958: '</pre>');
959: if ($gotfullstack) {
960: my $newstring='</'.$tag.'>'.$result;
961: &Apache::lonxml::newparser($pars,\$newstring);
962: }
963: $result='';
964: }
965: } else {
966: while ($#$pars > -1) {
967: while ($token = $$pars[-1]->get_token) {
968: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
969: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
970: ($token->[0] eq 'D')) {
971: $result.=$token->[1];
972: } elsif ($token->[0] eq 'PI') {
973: $result.=$token->[2];
974: } elsif ($token->[0] eq 'S') {
1.316 albertel 975: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1.270 albertel 976: $$pars[-1]->unget_token($token); last;
977: } else {
978: $result.=$token->[4];
979: }
1.316 albertel 980: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
981: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 982: } elsif ($token->[0] eq 'E') {
983: $result.=$token->[2];
984: }
985: }
986: if (($#$pars > 0) ) {
987: pop(@$pars);
988: pop(@Apache::lonxml::pwd);
989: } else { last; }
990: }
991: }
992: #&Apache::lonxml::debug("Exit:$result:");
993: return $result
1.19 albertel 994: }
995:
1.23 albertel 996: sub newparser {
997: my ($parser,$contentref,$dir) = @_;
1.167 albertel 998: push (@$parser,HTML::LCParser->new($contentref));
1.56 albertel 999: $$parser['-1']->xml_mode('1');
1.23 albertel 1000: if ( $dir eq '' ) {
1001: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1002: } else {
1003: push (@Apache::lonxml::pwd, $dir);
1004: }
1005: }
1.1 sakharuk 1006:
1.8 albertel 1007: sub parstring {
1008: my ($token) = @_;
1009: my $temp='';
1.142 albertel 1010: foreach (@{$token->[3]}) {
1.35 www 1011: unless ($_=~/\W/) {
1.42 albertel 1012: my $val=$token->[2]->{$_};
1.231 albertel 1013: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1.51 albertel 1014: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1.267 sakharuk 1015: $temp .= "my \$$_=\"$val\";";
1.20 albertel 1016: }
1.142 albertel 1017: }
1.8 albertel 1018: return $temp;
1019: }
1.22 albertel 1020:
1.34 www 1021: sub writeallows {
1.126 www 1022: unless ($#extlinks>=0) { return; }
1.34 www 1023: my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
1.111 www 1024: if ($ENV{'httpref.'.$thisurl}) {
1025: $thisurl=$ENV{'httpref.'.$thisurl};
1026: }
1.34 www 1027: my $thisdir=$thisurl;
1028: $thisdir=~s/\/[^\/]+$//;
1029: my %httpref=();
1.142 albertel 1030: foreach (@extlinks) {
1.34 www 1031: $httpref{'httpref.'.
1.125 www 1032: &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl;
1.142 albertel 1033: }
1.126 www 1034: @extlinks=();
1.34 www 1035: &Apache::lonnet::appenv(%httpref);
1036: }
1037:
1.281 albertel 1038: sub register_ssi {
1039: my ($url,%form)=@_;
1040: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1041: return '';
1042: }
1043:
1044: sub do_registered_ssi {
1045: foreach my $info (@Apache::lonxml::ssi_info) {
1046: my %form=%{ $info->{'form'}};
1047: my $url=$info->{'url'};
1048: &Apache::lonnet::ssi($url,%form);
1049: }
1050: }
1.66 www 1051: #
1052: # Afterburner handles anchors, highlights and links
1053: #
1054: sub afterburn {
1055: my $result=shift;
1.154 albertel 1056: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1057: ['highlight','anchor','link']);
1.66 www 1058: if ($ENV{'form.highlight'}) {
1.142 albertel 1059: foreach (split(/\,/,$ENV{'form.highlight'})) {
1.66 www 1060: my $anchorname=$_;
1061: my $matchthis=$anchorname;
1062: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1063: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1064: }
1.66 www 1065: }
1066: if ($ENV{'form.link'}) {
1.142 albertel 1067: foreach (split(/\,/,$ENV{'form.link'})) {
1.66 www 1068: my ($anchorname,$linkurl)=split(/\>/,$_);
1069: my $matchthis=$anchorname;
1070: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1071: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1072: }
1.66 www 1073: }
1074: if ($ENV{'form.anchor'}) {
1075: my $anchorname=$ENV{'form.anchor'};
1076: my $matchthis=$anchorname;
1077: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1078: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1.66 www 1079: $result.=(<<"ENDSCRIPT");
1.226 albertel 1080: <script type="text/javascript">
1.66 www 1081: document.location.hash='$anchorname';
1082: </script>
1083: ENDSCRIPT
1084: }
1085: return $result;
1086: }
1087:
1.79 www 1088: sub storefile {
1089: my ($file,$contents)=@_;
1.290 albertel 1090: &Apache::lonnet::correct_line_ends(\$contents);
1.79 www 1091: if (my $fh=Apache::File->new('>'.$file)) {
1092: print $fh $contents;
1093: $fh->close();
1.271 www 1094: return 1;
1.147 albertel 1095: } else {
1.271 www 1096: &warning("Unable to save file $file");
1097: return 0;
1.79 www 1098: }
1099: }
1100:
1.151 albertel 1101: sub createnewhtml {
1.321 www 1102: my $title=&mt('Title of document goes here');
1103: my $body=&mt('Body of document goes here');
1104: my $filecontents=(<<SIMPLECONTENT);
1105: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml/11/DTD/xhtml11.dtd">
1.78 www 1106: <html>
1107: <head>
1.321 www 1108: <title>$title</title>
1.78 www 1109: </head>
1110: <body bgcolor="#FFFFFF">
1.321 www 1111: $body
1.78 www 1112: </body>
1113: </html>
1114: SIMPLECONTENT
1.321 www 1115: return $filecontents;
1.151 albertel 1116: }
1117:
1.274 albertel 1118: sub createnewsty {
1119: my $filecontents=(<<SIMPLECONTENT);
1120: <definetag name="">
1121: <render>
1122: <web></web>
1123: <tex></tex>
1124: </render>
1125: </definetag>
1126: SIMPLECONTENT
1127: return $filecontents;
1128: }
1129:
1.147 albertel 1130:
1.151 albertel 1131: sub inserteditinfo {
1.274 albertel 1132: my ($result,$filecontents,$filetype)=@_;
1.314 albertel 1133: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1.147 albertel 1134: # my $editheader='<a href="#editsection">Edit below</a><hr />';
1.274 albertel 1135: my $xml_help = '';
1.321 www 1136: my $initialize='';
1.274 albertel 1137: if ($filetype eq 'html') {
1.323 www 1138: my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
1.321 www 1139: $initialize=&Apache::lonhtmlcommon::htmlareaheaders().(<<FULLPAGE);
1140: <script type="text/javascript">
1.323 www 1141: $addbuttons
1142:
1.321 www 1143: HTMLArea.loadPlugin("FullPage");
1144:
1145: function initDocument() {
1.323 www 1146: var editor=new HTMLArea("filecont",config);
1.321 www 1147: editor.registerPlugin(FullPage);
1148: editor.generate();
1149: }
1150: </script>
1151: FULLPAGE
1152: $result=~s/\<body([^\>]*)\>/\<body onload="initDocument()" $1\>/i;
1153: $xml_help=&Apache::loncommon::helpLatexCheatsheet();
1.274 albertel 1154: }
1155: my $cleanbut = '';
1156: if ($filetype eq 'html') {
1.280 www 1157: $cleanbut='<input type="submit" name="attemptclean" value="'.
1158: &mt('Save and then attempt to clean HTML').'" />';
1.274 albertel 1159: }
1.254 albertel 1160: my $titledisplay=&display_title();
1.280 www 1161: my %lt=&Apache::lonlocal::texthash('st' => 'Save this',
1162: 'vi' => 'View',
1163: 'ed' => 'Edit');
1.161 albertel 1164: my $buttons=(<<BUTTONS);
1.274 albertel 1165: $cleanbut
1.304 matthew 1166: <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
1167: <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
1.161 albertel 1168: BUTTONS
1.78 www 1169: my $editfooter=(<<ENDFOOTER);
1.321 www 1170: $initialize
1.78 www 1171: <hr />
1172: <a name="editsection" />
1173: <form method="post">
1.240 albertel 1174: $xml_help
1.280 www 1175: <input type="hidden" name="editmode" value="$lt{'ed'}" />
1.170 www 1176: $buttons<br />
1.321 www 1177: <textarea cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
1.170 www 1178: <br />$buttons
1.78 www 1179: <br />
1180: </form>
1.254 albertel 1181: $titledisplay
1.321 www 1182: </body>
1.78 www 1183: ENDFOOTER
1.147 albertel 1184: # $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
1.78 www 1185: $result=~s/(\<\/body\>)/$editfooter/is;
1186: return $result;
1187: }
1188:
1.152 albertel 1189: sub get_target {
1190: my $viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
1191: if ( $ENV{'request.state'} eq 'published') {
1192: if ( defined($ENV{'form.grade_target'})
1193: && ($viewgrades == 'F' )) {
1194: return ($ENV{'form.grade_target'});
1.153 albertel 1195: } elsif (defined($ENV{'form.grade_target'})) {
1196: if (($ENV{'form.grade_target'} eq 'web') ||
1197: ($ENV{'form.grade_target'} eq 'tex') ) {
1198: return $ENV{'form.grade_target'}
1199: } else {
1200: return 'web';
1201: }
1.152 albertel 1202: } else {
1203: return 'web';
1204: }
1205: } elsif ($ENV{'request.state'} eq 'construct') {
1206: if ( defined($ENV{'form.grade_target'})) {
1207: return ($ENV{'form.grade_target'});
1208: } else {
1209: return 'web';
1210: }
1211: } else {
1212: return 'web';
1213: }
1214: }
1215:
1.24 sakharuk 1216: sub handler {
1.255 sakharuk 1217: my $request=shift;
1218:
1219: my $target=&get_target();
1220:
1.258 albertel 1221: $Apache::lonxml::debug=$ENV{'user.debug'};
1.255 sakharuk 1222:
1223: if ($ENV{'browser.mathml'}) {
1.280 www 1224: &Apache::loncommon::content_type($request,'text/xml');
1.255 sakharuk 1225: } else {
1.280 www 1226: &Apache::loncommon::content_type($request,'text/html');
1.255 sakharuk 1227: }
1228: &Apache::loncommon::no_cache($request);
1229: $request->send_http_header;
1230:
1231: return OK if $request->header_only;
1.68 www 1232:
1233:
1.255 sakharuk 1234: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.274 albertel 1235: my $filetype;
1236: if ($file =~ /\.sty$/) {
1237: $filetype='sty';
1238: } else {
1239: $filetype='html';
1240: }
1.78 www 1241: #
1242: # Edit action? Save file.
1243: #
1.255 sakharuk 1244: unless ($ENV{'request.state'} eq 'published') {
1245: if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
1.271 www 1246: if (&storefile($file,$ENV{'form.filecont'})) {
1.309 albertel 1247: &Apache::lonxml::info("<font COLOR=\"#0000FF\">".
1248: &mt('Updated').": ".
1249: &Apache::lonlocal::locallocaltime(time).
1250: " </font>");
1.271 www 1251: }
1.255 sakharuk 1252: }
1253: }
1254: my %mystyle;
1255: my $result = '';
1256: my $filecontents=&Apache::lonnet::getfile($file);
1257: if ($filecontents eq -1) {
1.284 www 1258: my $bodytag=&Apache::loncommon::bodytag('File Error');
1259: my $fnf=&mt('File not found');
1.255 sakharuk 1260: $result=(<<ENDNOTFOUND);
1.78 www 1261: <html>
1262: <head>
1.284 www 1263: <title>$fnf</title>
1.78 www 1264: </head>
1.284 www 1265: $bodytag
1266: <b>$fnf: $file</b>
1.78 www 1267: </body>
1268: </html>
1269: ENDNOTFOUND
1.50 albertel 1270: $filecontents='';
1.255 sakharuk 1271: if ($ENV{'request.state'} ne 'published') {
1.274 albertel 1272: if ($filetype eq 'sty') {
1273: $filecontents=&createnewsty();
1274: } else {
1275: $filecontents=&createnewhtml();
1276: }
1.255 sakharuk 1277: $ENV{'form.editmode'}='Edit'; #force edit mode
1278: }
1279: } else {
1280: unless ($ENV{'request.state'} eq 'published') {
1281: if ($ENV{'form.attemptclean'}) {
1282: $filecontents=&htmlclean($filecontents,1);
1283: }
1.264 www 1284: #
1285: # we are in construction space, see if edit mode forced
1286: &Apache::loncommon::get_unprocessed_cgi
1287: ($ENV{'QUERY_STRING'},['editmode']);
1.255 sakharuk 1288: }
1289: if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
1290: $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
1291: '',%mystyle);
1292: }
1.147 albertel 1293: }
1.255 sakharuk 1294:
1.78 www 1295: #
1296: # Edit action? Insert editing commands
1297: #
1.255 sakharuk 1298: unless ($ENV{'request.state'} eq 'published') {
1299: if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
1300: my $displayfile=$request->uri;
1301: $displayfile=~s/^\/[^\/]*//;
1.309 albertel 1302: $result='<html><body bgcolor="#FFFFFF">'.
1303: &Apache::lonxml::message_location().'<h3>'.
1304: $displayfile.
1.255 sakharuk 1305: '</h3></body></html>';
1.274 albertel 1306: $result=&inserteditinfo($result,$filecontents,$filetype);
1.255 sakharuk 1307: }
1.147 albertel 1308: }
1.274 albertel 1309: if ($filetype eq 'html') { writeallows($request->uri); }
1310:
1.255 sakharuk 1311:
1.309 albertel 1312: &Apache::lonxml::add_messages(\$result);
1.255 sakharuk 1313: $request->print($result);
1314:
1315: return OK;
1.253 albertel 1316: }
1317:
1318: sub display_title {
1319: my $result;
1320: if ($ENV{'request.state'} eq 'construct') {
1321: my $title=&Apache::lonnet::gettitle();
1322: if (!defined($title) || $title eq '') {
1323: $title = $ENV{'request.filename'};
1324: $title = substr($title, rindex($title, '/') + 1);
1325: }
1326: $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA Construction Space';</script>";
1327: }
1328: return $result;
1.24 sakharuk 1329: }
1.147 albertel 1330:
1.22 albertel 1331: sub debug {
1.298 albertel 1332: if ($Apache::lonxml::debug eq "1") {
1333: $|=1;
1.300 albertel 1334: my $request=$Apache::lonxml::request;
1335: if (!$request) { $request=Apache->request; }
1.314 albertel 1336: $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
1.298 albertel 1337: }
1.22 albertel 1338: }
1.49 albertel 1339:
1.22 albertel 1340: sub error {
1.205 www 1341: $errorcount++;
1.300 albertel 1342: my $request=$Apache::lonxml::request;
1343: if (!$request) { $request=Apache->request; }
1.74 albertel 1344: if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
1.166 matthew 1345: # If printing in construction space, put the error inside <pre></pre>
1.309 albertel 1346: push(@Apache::lonxml::error_messages,
1347: $Apache::lonxml::warnings_error_header.
1348: "<b>ERROR:</b>".join("<br />\n",@_)."<br />\n");
1.295 albertel 1349: $Apache::lonxml::warnings_error_header='';
1.52 albertel 1350: } else {
1.309 albertel 1351: push(@Apache::lonxml::error_messages,
1352: "<b>An Error occured while processing this resource. The instructor has been notified.</b> <br />");
1.52 albertel 1353: #notify author
1.146 albertel 1354: &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
1.52 albertel 1355: #notify course
1356: if ( $ENV{'request.course.id'} ) {
1.209 www 1357: my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
1.143 www 1358: my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
1.209 www 1359: foreach (keys %users) {
1360: my ($user,$domain) = split(/:/, $_);
1.143 www 1361: &Apache::lonmsg::user_normal_msg($user,$domain,
1.146 albertel 1362: "Error [$declutter]",join('<br />',@_));
1.52 albertel 1363: }
1364: }
1365: }
1.22 albertel 1366: }
1.49 albertel 1367:
1.22 albertel 1368: sub warning {
1.295 albertel 1369: $warningcount++;
1.261 albertel 1370:
1.295 albertel 1371: if ($ENV{'form.grade_target'} ne 'tex') {
1372: if ($ENV{'request.state'} eq 'construct' || $Apache::lonxml::debug) {
1.300 albertel 1373: my $request=$Apache::lonxml::request;
1374: if (!$request) { $request=Apache->request; }
1.309 albertel 1375: push(@Apache::lonxml::warning_messages,
1376: $Apache::lonxml::warnings_error_header.
1377: "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n");
1.295 albertel 1378: $Apache::lonxml::warnings_error_header='';
1379: }
1380: }
1.309 albertel 1381: }
1382:
1383: sub info {
1384: if ($ENV{'form.grade_target'} ne 'tex'
1385: && $ENV{'request.state'} eq 'construct') {
1386: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
1387: }
1388: }
1389:
1390: sub message_location {
1391: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
1392: }
1393:
1394: sub add_messages {
1395: my ($msg)=@_;
1396: my $result=join(' ',
1397: @Apache::lonxml::info_messages,
1398: @Apache::lonxml::error_messages,
1399: @Apache::lonxml::warning_messages);
1400: undef(@Apache::lonxml::info_messages);
1401: undef(@Apache::lonxml::error_messages);
1402: undef(@Apache::lonxml::warning_messages);
1403: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
1404: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
1.83 albertel 1405: }
1406:
1407: sub get_param {
1.213 albertel 1408: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1409: if ( ! $context ) { $context = -1; }
1410: my $args ='';
1411: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1412: if ( ! $Apache::lonxml::usestyle ) {
1413: $args=$Apache::lonxml::style_values.$args;
1414: }
1.213 albertel 1415: if ( ! $args ) { return undef; }
1416: if ( $case_insensitive ) {
1417: if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
1418: return &Apache::run::run("{$args;".'return $'.$param.'}',
1419: $safeeval); #'
1420: } else {
1421: return undef;
1422: }
1423: } else {
1424: if ( $args =~ /my \$\Q$param\E=\"/ ) {
1425: return &Apache::run::run("{$args;".'return $'.$param.'}',
1426: $safeeval); #'
1427: } else {
1428: return undef;
1429: }
1430: }
1.22 albertel 1431: }
1432:
1.132 albertel 1433: sub get_param_var {
1.213 albertel 1434: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 1435: if ( ! $context ) { $context = -1; }
1436: my $args ='';
1437: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1438: if ( ! $Apache::lonxml::usestyle ) {
1439: $args=$Apache::lonxml::style_values.$args;
1440: }
1.230 albertel 1441: &Apache::lonxml::debug("Args are $args param is $param");
1.213 albertel 1442: if ($case_insensitive) {
1443: if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
1444: return undef;
1445: }
1446: } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; }
1.132 albertel 1447: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.230 albertel 1448: &Apache::lonxml::debug("first run is $value");
1449: if ($value =~ /^[\$\@\%]\w+$/) {
1450: &Apache::lonxml::debug("doing second");
1451: my @result=&Apache::run::run("return $value",$safeeval,1);
1452: if (!defined($result[0])) {
1453: return $value
1454: } else {
1455: if (wantarray) { return @result; } else { return $result[0]; }
1456: }
1.132 albertel 1457: } else {
1458: return $value;
1459: }
1460: }
1461:
1.74 albertel 1462: sub register_insert {
1.75 albertel 1463: my @data = split /\n/, &Apache::lonnet::getfile('/home/httpd/lonTabs/insertlist.tab');
1.74 albertel 1464: my $i;
1.76 albertel 1465: my $tagnum=0;
1.74 albertel 1466: my @order;
1467: for ($i=0;$i < $#data; $i++) {
1468: my $line = $data[$i];
1469: if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; }
1470: if ( $line =~ /TABLE/ ) { last; }
1.268 bowersj2 1471: my ($tag,$descrip,$color,$function,$show,$helpfile,$helpdesc) = split(/,/, $line);
1.135 albertel 1472: if ($tag) {
1473: $insertlist{"$tagnum.tag"} = $tag;
1474: $insertlist{"$tagnum.description"} = $descrip;
1475: $insertlist{"$tagnum.color"} = $color;
1476: $insertlist{"$tagnum.function"} = $function;
1477: if (!defined($show)) { $show='yes'; }
1478: $insertlist{"$tagnum.show"}= $show;
1.268 bowersj2 1479: $insertlist{"$tagnum.helpfile"} = $helpfile;
1480: $insertlist{"$tagnum.helpdesc"} = $helpdesc;
1.135 albertel 1481: $insertlist{"$tag.num"}=$tagnum;
1482: $tagnum++;
1483: }
1.74 albertel 1484: }
1.76 albertel 1485: $i++; #skipping TABLE line
1486: $tagnum = 0;
1.74 albertel 1487: for (;$i < $#data;$i++) {
1488: my $line = $data[$i];
1.76 albertel 1489: my ($mnemonic,@which) = split(/ +/,$line);
1490: my $tag = $insertlist{"$tagnum.tag"};
1.144 matthew 1491: for (my $j=0;$j <=$#which;$j++) {
1.74 albertel 1492: if ( $which[$j] eq 'Y' ) {
1.76 albertel 1493: if ($insertlist{"$j.show"} ne 'no') {
1494: push(@{ $insertlist{"$tag.which"} },$j);
1495: }
1.74 albertel 1496: }
1497: }
1.76 albertel 1498: $tagnum++;
1.74 albertel 1499: }
1500: }
1.98 albertel 1501:
1502: sub description {
1503: my ($token)=@_;
1.138 albertel 1504: my $tagnum;
1505: my $tag=$token->[1];
1506: foreach my $namespace (reverse @Apache::lonxml::namespace) {
1507: my $testtag=$namespace.'::'.$tag;
1508: $tagnum=$insertlist{"$testtag.num"};
1509: if (defined($tagnum)) { last; }
1510: }
1511: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
1512: return $insertlist{$tagnum.'.description'};
1.268 bowersj2 1513: }
1514:
1515: # Returns a list containing the help file, and the description
1516: sub helpinfo {
1517: my ($token)=@_;
1518: my $tagnum;
1519: my $tag=$token->[1];
1520: foreach my $namespace (reverse @Apache::lonxml::namespace) {
1521: my $testtag=$namespace.'::'.$tag;
1522: $tagnum=$insertlist{"$testtag.num"};
1523: if (defined($tagnum)) { last; }
1524: }
1525: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
1526: return ($insertlist{$tagnum.'.helpfile'}, $insertlist{$tagnum.'.helpdesc'});
1.98 albertel 1527: }
1.123 albertel 1528:
1529: # ----------------------------------------------------------------- whichuser
1530: # returns a list of $symb, $courseid, $domain, $name that is correct for
1531: # calls to lonnet functions for this setup.
1532: # - looks for form.grade_ parameters
1533: sub whichuser {
1.262 matthew 1534: my ($passedsymb)=@_;
1.245 albertel 1535: my ($symb,$courseid,$domain,$name,$publicuser);
1.123 albertel 1536: if (defined($ENV{'form.grade_symb'})) {
1537: my $tmp_courseid=$ENV{'form.grade_courseid'};
1.269 albertel 1538: my $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid);
1.123 albertel 1539: if ($allowed) {
1540: $symb=$ENV{'form.grade_symb'};
1541: $courseid=$ENV{'form.grade_courseid'};
1542: $domain=$ENV{'form.grade_domain'};
1543: $name=$ENV{'form.grade_username'};
1544: }
1.134 albertel 1545: } else {
1.262 matthew 1546: if (!$passedsymb) {
1547: $symb=&Apache::lonnet::symbread();
1548: } else {
1549: $symb=$passedsymb;
1550: }
1.244 albertel 1551: $courseid=$ENV{'request.course.id'};
1552: $domain=$ENV{'user.domain'};
1553: $name=$ENV{'user.name'};
1554: if ($name eq 'public' && $domain eq 'public') {
1555: if (!defined($ENV{'form.username'})) {
1556: $ENV{'form.username'}.=time.rand(10000000);
1557: }
1558: $name.=$ENV{'form.username'};
1559: }
1.123 albertel 1560: }
1.245 albertel 1561: return ($symb,$courseid,$domain,$name,$publicuser);
1.123 albertel 1562: }
1563:
1.1 sakharuk 1564: 1;
1565: __END__
1.68 www 1566:
1567:
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