Annotation of loncom/xml/lonxml.pm, revision 1.334
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.334 ! sakharuk 4: # $Id: lonxml.pm,v 1.333 2004/07/27 23:35:34 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 $output;
165: }
166:
167: sub xmlend {
1.334 ! sakharuk 168: my ($target,$tagstack,$parstack,$parser,$safeeval)=@_;
1.278 www 169: my $mode='xml';
170: my $status='OPEN';
171: if ($Apache::lonhomework::parsing_a_problem) {
172: $mode='problem';
173: $status=$Apache::inputtags::status[-1];
174: }
1.334 ! sakharuk 175: my $discussion=&Apache::lonfeedback::list_discussion($mode,$status,'',$target,$tagstack,$parstack,$parser,$safeeval);
! 176: if ($target eq 'tex') {
! 177: &Apache::lonxml::newparser($parser,\$discussion,'');
! 178: return '';
! 179: } else {
! 180: return $discussion.'</html>';
! 181: }
1.119 www 182: }
183:
184: sub tokeninputfield {
1.120 www 185: my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
186: $defhost=~tr/a-z/A-Z/;
1.119 www 187: return (<<ENDINPUTFIELD)
1.226 albertel 188: <script type="text/javascript">
1.120 www 189: function updatetoken() {
190: var comp=new Array;
191: var barcode=unescape(document.tokeninput.barcode.value);
192: comp=barcode.split('*');
193: if (typeof(comp[0])!="undefined") {
194: document.tokeninput.codeone.value=comp[0];
195: }
196: if (typeof(comp[1])!="undefined") {
197: document.tokeninput.codetwo.value=comp[1];
198: }
199: if (typeof(comp[2])!="undefined") {
200: comp[2]=comp[2].toUpperCase();
201: document.tokeninput.codethree.value=comp[2];
202: }
203: document.tokeninput.barcode.value='';
204: }
205: </script>
206: <form method="post" name="tokeninput">
1.119 www 207: <table border="2" bgcolor="#FFFFBB">
208: <tr><th>DocID Checkin</th></tr>
209: <tr><td>
210: <table>
211: <tr>
212: <td>Scan in Barcode</td>
1.120 www 213: <td><input type="text" size="22" name="barcode"
214: onChange="updatetoken()"/></td>
1.119 www 215: </tr>
216: <tr><td><i>or</i> Type in DocID</td>
217: <td>
218: <input type="text" size="5" name="codeone" />
1.120 www 219: <b><font size="+2">*</font></b>
1.119 www 220: <input type="text" size="5" name="codetwo" />
1.120 www 221: <b><font size="+2">*</font></b>
222: <input type="text" size="10" name="codethree" value="$defhost"
223: onChange="this.value=this.value.toUpperCase()" />
1.119 www 224: </td></tr>
225: </table>
226: </td></tr>
227: <tr><td><input type="submit" value="Check in DocID" /></td></tr>
228: </table>
229: </form>
230: ENDINPUTFIELD
1.112 www 231: }
232:
1.116 www 233: sub maketoken {
1.118 www 234: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1.112 www 235: unless ($symb) {
236: $symb=&Apache::lonnet::symbread();
237: }
238: unless ($tuname) {
239: $tuname=$ENV{'user.name'};
240: $tudom=$ENV{'user.domain'};
241: $tcrsid=$ENV{'request.course.id'};
242: }
1.116 www 243:
1.118 www 244: return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
245: }
246:
247: sub printtokenheader {
1.133 albertel 248: my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
1.116 www 249: unless ($token) { return ''; }
1.118 www 250:
1.133 albertel 251: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
252: unless ($tsymb) {
253: $tsymb=$symb;
1.118 www 254: }
255: unless ($tuname) {
1.133 albertel 256: $tuname=$name;
257: $tudom=$domain;
258: $tcrsid=$courseid;
1.118 www 259: }
1.114 www 260:
261: my %reply=&Apache::lonnet::get('environment',
262: ['firstname','middlename','lastname','generation'],
263: $tudom,$tuname);
264: my $plainname=$reply{'firstname'}.' '.
265: $reply{'middlename'}.' '.
266: $reply{'lastname'}.' '.
267: $reply{'generation'};
268:
1.112 www 269: if ($target eq 'web') {
1.145 www 270: my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
1.115 www 271: return
1.221 albertel 272: '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
1.284 www 273: &mt('Checked out for').' '.$plainname.
274: '<br />'.&mt('User').': '.$tuname.' at '.$tudom.
275: '<br />'.&mt('ID').': '.$idhash{$tuname}.
276: '<br />'.&mt('CourseID').': '.$tcrsid.
277: '<br />'.&mt('Course').': '.$ENV{'course.'.$tcrsid.'.description'}.
278: '<br />'.&mt('DocID').': '.$token.
279: '<br />'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'<hr />';
1.112 www 280: } else {
1.121 albertel 281: return $token;
1.112 www 282: }
1.68 www 283: }
284:
1.70 www 285: sub fontsettings() {
286: my $headerstring='';
287: if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
1.248 albertel 288: $headerstring.=
289: '<meta Content-Type="text/html; charset=x-mac-roman">';
1.263 albertel 290: } elsif (!$ENV{'browser.mathml'} && $ENV{'browser.unicode'}) {
1.248 albertel 291: $headerstring.=
292: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
1.70 www 293: }
294: return $headerstring;
1.68 www 295: }
296:
1.48 albertel 297: sub printalltags {
298: my $temp;
299: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.141 albertel 300: &Apache::lonxml::debug("$temp -- ".
301: join(',',@{ $Apache::lonxml::alltags{$temp} }));
1.48 albertel 302: }
303: }
1.31 sakharuk 304:
1.3 sakharuk 305: sub xmlparse {
1.172 albertel 306: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 307:
1.172 albertel 308: &setup_globals($request,$target);
1.232 albertel 309: &Apache::inputtags::initialize_inputtags();
310: &Apache::outputtags::initialize_outputtags();
311: &Apache::edit::initialize_edit();
1.287 albertel 312: &Apache::londefdef::initialize_londefdef();
1.244 albertel 313:
1.178 www 314: #
315: # do we have a course style file?
316: #
317:
1.208 albertel 318: if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') {
1.178 www 319: my $bodytext=
320: $ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'};
321: if ($bodytext) {
322: my $location=&Apache::lonnet::filelocation('',$bodytext);
323: my $styletext=&Apache::lonnet::getfile($location);
324: if ($styletext ne '-1') {
325: %style_for_target = (%style_for_target,
326: &Apache::style::styleparser($target,$styletext));
327: }
328: }
1.292 sakharuk 329: } elsif ($ENV{'construct.style'} && ($ENV{'request.state'} eq 'construct')) {
330: my $location=&Apache::lonnet::filelocation('',$ENV{'construct.style'});
1.291 sakharuk 331: my $styletext=&Apache::lonnet::getfile($location);
332: if ($styletext ne '-1') {
333: %style_for_target = (%style_for_target,
334: &Apache::style::styleparser($target,$styletext));
335: }
1.178 www 336: }
1.255 sakharuk 337: #&printalltags();
1.16 albertel 338: my @pars = ();
1.23 albertel 339: my $pwd=$ENV{'request.filename'};
340: $pwd =~ s:/[^/]*$::;
341: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 342:
1.3 sakharuk 343: my $safeeval = new Safe;
1.40 albertel 344: my $safehole = new Safe::Hole;
1.82 ng 345: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 346: #-------------------- Redefinition of the target in the case of compound target
347:
348: ($target, my @tenta) = split('&&',$target);
349:
1.150 albertel 350: my @stack = ();
1.3 sakharuk 351: my @parstack = ();
1.17 albertel 352: &initdepth;
1.67 www 353:
1.101 albertel 354: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
355: $safeeval,\%style_for_target);
1.255 sakharuk 356:
1.125 www 357: if ($ENV{'request.uri'}) {
358: &writeallows($ENV{'request.uri'});
359: }
1.281 albertel 360: &do_registered_ssi();
1.204 albertel 361: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.3 sakharuk 362: return $finaloutput;
1.106 www 363: }
364:
365: sub htmlclean {
1.107 www 366: my ($raw,$full)=@_;
1.106 www 367:
368: my $tree = HTML::TreeBuilder->new;
369: $tree->ignore_unknown(0);
1.140 albertel 370:
1.106 www 371: $tree->parse($raw);
372:
1.107 www 373: my $output= $tree->as_HTML(undef,' ');
1.140 albertel 374:
1.161 albertel 375: $output=~s/\<(br|hr|img|meta|allow)(.*?)\>/\<$1$2 \/\>/gis;
1.111 www 376: $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
1.107 www 377: unless ($full) {
378: $output=~s/\<[\/]*(body|head|html)\>//gis;
379: }
1.106 www 380:
381: $tree = $tree->delete;
382:
383: return $output;
1.15 albertel 384: }
385:
1.191 albertel 386: sub latex_special_symbols {
1.272 albertel 387: my ($string,$where)=@_;
1.235 sakharuk 388: if ($where eq 'header') {
1.272 albertel 389: $string =~ s/(\\|_|\^)/ /g;
1.311 albertel 390: $string =~ s/(\$|%|\{|\})/\\$1/g;
1.273 sakharuk 391: $string =~ s/_/ /g;
1.311 albertel 392: $string=&Apache::lonprintout::character_chart($string);
393: # any & or # leftover should be safe to just escape
394: $string=~s/([^\\])\&/$1\\\&/g;
395: $string=~s/([^\\])\#/$1\\\#/g;
1.229 sakharuk 396: } else {
1.312 albertel 397: $string=~s/\\/\\ensuremath{\\backslash}/g;
1.313 albertel 398: $string=~s/([^\\]|^)\%/$1\\\%/g;
1.329 sakharuk 399: $string=~s/([^\\]|^)\$/$1\\\$/g;
400: $string=~s/([^\\])\_/$1\\_/g;
1.310 sakharuk 401: $string=~s/\$\$/\$\\\$/g;
1.329 sakharuk 402: $string=~s/\_\_/\_\\\_/g;
1.310 sakharuk 403: $string=~s/\#\#/\#\\\#/g;
1.313 albertel 404: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
1.310 sakharuk 405: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
1.311 albertel 406: $string=&Apache::lonprintout::character_chart($string);
407: # any & or # leftover should be safe to just escape
1.313 albertel 408: $string=~s/([^\\]|^)\&/$1\\\&/g;
409: $string=~s/([^\\]|^)\#/$1\\\#/g;
1.332 sakharuk 410: $string=~s/\|/\$\\mid\$/g;
1.310 sakharuk 411: #single { or } How to escape?
1.229 sakharuk 412: }
1.272 albertel 413: return $string;
1.188 sakharuk 414: }
415:
1.101 albertel 416: sub inner_xmlparse {
417: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
418: my $finaloutput = '';
419: my $result;
420: my $token;
1.258 albertel 421: my $dontpop=0;
1.101 albertel 422: while ( $#$pars > -1 ) {
423: while ($token = $$pars['-1']->get_token) {
1.261 albertel 424: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
1.101 albertel 425: if ($metamode<1) {
1.190 albertel 426: my $text=$token->[1];
1.193 albertel 427: if ($token->[0] eq 'C' && $target eq 'tex') {
1.239 sakharuk 428: $text = '';
429: # $text = '%'.$text."\n";
1.182 sakharuk 430: }
1.190 albertel 431: $result.=$text;
1.101 albertel 432: }
1.261 albertel 433: } elsif (($token->[0] eq 'D')) {
434: if ($metamode<1 && $target eq 'web') {
435: my $text=$token->[1];
436: $result.=$text;
437: }
1.101 albertel 438: } elsif ($token->[0] eq 'PI') {
1.261 albertel 439: if ($metamode<1 && $target eq 'web') {
1.101 albertel 440: $result=$token->[2];
441: }
442: } elsif ($token->[0] eq 'S') {
1.140 albertel 443: # add tag to stack
1.101 albertel 444: push (@$stack,$token->[1]);
445: # add parameters list to another stack
446: push (@$parstack,&parstring($token));
1.140 albertel 447: &increasedepth($token);
1.212 albertel 448: if ($Apache::lonxml::usestyle &&
449: exists($$style_for_target{$token->[1]})) {
450: $Apache::lonxml::usestyle=0;
451: my $string=$$style_for_target{$token->[1]}.
452: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
453: &Apache::lonxml::newparser($pars,\$string);
1.257 albertel 454: $Apache::lonxml::style_values=$$parstack[-1];
1.259 albertel 455: $Apache::lonxml::style_end_values=$$parstack[-1];
1.101 albertel 456: } else {
457: $result = &callsub("start_$token->[1]", $target, $token, $stack,
458: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 459: }
1.101 albertel 460: } elsif ($token->[0] eq 'E') {
1.212 albertel 461: if ($Apache::lonxml::usestyle &&
462: exists($$style_for_target{'/'."$token->[1]"})) {
463: $Apache::lonxml::usestyle=0;
464: my $string=$$style_for_target{'/'.$token->[1]}.
1.258 albertel 465: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
1.212 albertel 466: &Apache::lonxml::newparser($pars,\$string);
1.259 albertel 467: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
468: $Apache::lonxml::style_end_values='';
1.258 albertel 469: $dontpop=1;
1.101 albertel 470: } else {
1.258 albertel 471: #clear out any tags that didn't end
472: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
473: my $lasttag=$$stack[-1];
1.317 albertel 474: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
1.258 albertel 475: &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
476: last;
477: } else {
478: &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file');
479: &end_tag($stack,$parstack,$token);
480: }
481: }
482: $result = &callsub("end_$token->[1]", $target, $token, $stack,
483: $parstack, $pars,$safeeval, $style_for_target);
1.101 albertel 484: }
485: } else {
486: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
487: }
488: #evaluate variable refs in result
1.282 albertel 489: if ($Apache::lonxml::post_evaluate &&$result ne "") {
1.257 albertel 490: my $extras;
491: if (!$Apache::lonxml::usestyle) {
492: $extras=$Apache::lonxml::style_values;
493: }
1.101 albertel 494: if ( $#$parstack > -1 ) {
1.257 albertel 495: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
1.101 albertel 496: } else {
1.257 albertel 497: $result= &Apache::run::evaluate($result,$safeeval,$extras);
1.101 albertel 498: }
1.163 albertel 499: }
1.282 albertel 500: $Apache::lonxml::post_evaluate=1;
501:
1.190 albertel 502: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
1.249 albertel 503: #Style file definitions should be correct
1.250 albertel 504: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
1.311 albertel 505: $result=&latex_special_symbols($result);
1.249 albertel 506: }
1.190 albertel 507: }
508:
1.169 albertel 509: if ($Apache::lonxml::redirection) {
510: $Apache::lonxml::outputstack['-1'] .= $result;
511: } else {
512: $finaloutput.=$result;
513: }
514: $result = '';
515:
1.258 albertel 516: if ($token->[0] eq 'E' && !$dontpop) {
1.101 albertel 517: &end_tag($stack,$parstack,$token);
518: }
1.258 albertel 519: $dontpop=0;
1.224 albertel 520: }
1.212 albertel 521: if ($#$pars > -1) {
522: pop @$pars;
523: pop @Apache::lonxml::pwd;
524: }
1.101 albertel 525: }
526:
527: # if ($target eq 'meta') {
528: # $finaloutput.=&endredirection;
529: # }
530:
1.169 albertel 531:
1.101 albertel 532: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
533: $finaloutput=&afterburn($finaloutput);
1.216 sakharuk 534: }
1.101 albertel 535: return $finaloutput;
536: }
1.67 www 537:
1.318 matthew 538: ##
539: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
540: ## otherwise do not call it as we do not know what it is.
541: ##
1.7 albertel 542: sub callsub {
1.84 albertel 543: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 544: my $currentstring='';
1.72 albertel 545: my $nodefault;
1.7 albertel 546: {
1.59 albertel 547: my $sub1;
1.7 albertel 548: no strict 'refs';
1.68 www 549: my $tag=$token->[1];
1.236 www 550: # get utterly rid of extended html tags
551: if ($tag=~/^x\-/i) { return ''; }
1.141 albertel 552: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 553: if (!$space) {
1.141 albertel 554: $tag=~tr/A-Z/a-z/;
1.68 www 555: $sub=~tr/A-Z/a-z/;
1.141 albertel 556: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 557: }
1.97 albertel 558:
559: my $deleted=0;
560: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
561: if (($token->[0] eq 'S') && ($target eq 'modified')) {
562: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
563: $parstack,$parser,$safeeval,
564: $style);
565: }
566: if (!$deleted) {
567: if ($space) {
1.220 albertel 568: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 569: $sub1="$space\:\:$sub";
570: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
571: $parstack,$parser,$safeeval,
572: $style);
573: } else {
1.318 matthew 574: if ($target eq 'tex') {
575: # throw away tag name
576: return '';
577: }
1.220 albertel 578: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 579: if ($metamode <1) {
580: if (defined($token->[4]) && ($metamode < 1)) {
581: $currentstring = $token->[4];
582: } else {
583: $currentstring = $token->[2];
584: }
1.62 sakharuk 585: }
1.7 albertel 586: }
1.97 albertel 587: # &Apache::lonxml::debug("nodefalt:$nodefault:");
588: if ($currentstring eq '' && $nodefault eq '') {
589: if ($target eq 'edit') {
1.220 albertel 590: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 591: if ($token->[0] eq 'S') {
592: $currentstring = &Apache::edit::tag_start($target,$token);
593: } elsif ($token->[0] eq 'E') {
594: $currentstring = &Apache::edit::tag_end($target,$token);
595: }
596: } elsif ($target eq 'modified') {
597: if ($token->[0] eq 'S') {
598: $currentstring = $token->[4];
599: $currentstring.=&Apache::edit::handle_insert();
1.210 www 600: } elsif ($token->[0] eq 'E') {
601: $currentstring = $token->[2];
602: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 603: } else {
604: $currentstring = $token->[2];
605: }
1.72 albertel 606: }
607: }
1.7 albertel 608: }
609: use strict 'refs';
610: }
611: return $currentstring;
1.82 ng 612: }
613:
1.96 albertel 614: sub setup_globals {
1.172 albertel 615: my ($request,$target)=@_;
616: $Apache::lonxml::request=$request;
1.99 albertel 617: $Apache::lonxml::registered = 0;
1.325 www 618: @Apache::lonxml::htmlareafields=();
1.205 www 619: $errorcount=0;
620: $warningcount=0;
1.207 albertel 621: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 622: $Apache::lonxml::usestyle=1;
1.204 albertel 623: &init_counter();
1.101 albertel 624: @Apache::lonxml::pwd=();
1.124 albertel 625: @Apache::lonxml::extlinks=();
1.281 albertel 626: @Apache::lonxml::ssi_info=();
1.282 albertel 627: $Apache::lonxml::post_evaluate=1;
1.295 albertel 628: $Apache::lonxml::warnings_error_header='';
1.96 albertel 629: if ($target eq 'meta') {
630: $Apache::lonxml::redirection = 0;
631: $Apache::lonxml::metamode = 1;
632: $Apache::lonxml::evaluate = 1;
633: $Apache::lonxml::import = 0;
1.129 albertel 634: } elsif ($target eq 'answer') {
635: $Apache::lonxml::redirection = 0;
636: $Apache::lonxml::metamode = 1;
637: $Apache::lonxml::evaluate = 1;
638: $Apache::lonxml::import = 1;
1.96 albertel 639: } elsif ($target eq 'grade') {
640: &startredirection;
641: $Apache::lonxml::metamode = 0;
642: $Apache::lonxml::evaluate = 1;
643: $Apache::lonxml::import = 1;
644: } elsif ($target eq 'modified') {
645: $Apache::lonxml::redirection = 0;
646: $Apache::lonxml::metamode = 0;
647: $Apache::lonxml::evaluate = 0;
648: $Apache::lonxml::import = 0;
649: } elsif ($target eq 'edit') {
650: $Apache::lonxml::redirection = 0;
651: $Apache::lonxml::metamode = 0;
652: $Apache::lonxml::evaluate = 0;
653: $Apache::lonxml::import = 0;
1.163 albertel 654: } elsif ($target eq 'analyze') {
655: $Apache::lonxml::redirection = 0;
656: $Apache::lonxml::metamode = 0;
657: $Apache::lonxml::evaluate = 1;
658: $Apache::lonxml::import = 1;
1.96 albertel 659: } else {
660: $Apache::lonxml::redirection = 0;
661: $Apache::lonxml::metamode = 0;
662: $Apache::lonxml::evaluate = 1;
663: $Apache::lonxml::import = 1;
664: }
665: }
666:
1.82 ng 667: sub init_safespace {
668: my ($target,$safeeval,$safehole,$safeinit) = @_;
669: $safeeval->permit("entereval");
670: $safeeval->permit(":base_math");
671: $safeeval->permit("sort");
1.286 albertel 672: $safeeval->permit("time");
1.82 ng 673: $safeeval->deny(":base_io");
1.102 albertel 674: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.251 albertel 675: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
1.82 ng 676: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
1.324 albertel 677: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
678: '&chem_standard_order');
679:
1.82 ng 680: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
681: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
682: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
683: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
684: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
685: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
686: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
687: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
688: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
689: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
690: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
691: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
692: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
693: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
694: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
695: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
696: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
697: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
698: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 699:
700: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
701: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
702: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
703: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
704: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
705: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
706: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
707: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
708: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
709: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
710: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
711: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
712: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
713: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
714: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
715: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
716: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
717: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
718: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
719: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
720: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
721: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
722:
723: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
724: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
725: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
726: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
727: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
728: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
729:
1.91 ng 730: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
731: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
732: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
733: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
734: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
735: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
736: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
737: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
738: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
739: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
740: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 741: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 742: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
743: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
744: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
745: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
746: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
747: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
748: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
749: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
750: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
1.305 albertel 751: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
1.311 albertel 752: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
1.322 albertel 753: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
1.91 ng 754:
1.82 ng 755: #need to inspect this class of ops
756: # $safeeval->deny(":base_orig");
1.331 albertel 757: $safeeval->permit("require");
1.91 ng 758: $safeinit .= ';$external::target="'.$target.'";';
1.121 albertel 759: my $rndseed;
1.123 albertel 760: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
761: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
1.319 albertel 762: $safeinit .= ';$external::randomseed="'.$rndseed.'";';
1.249 albertel 763: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.82 ng 764: &Apache::run::run($safeinit,$safeeval);
1.303 albertel 765:
1.207 albertel 766: }
767:
768: sub default_homework_load {
769: my ($safeeval)=@_;
770: &Apache::lonxml::debug('Loading default_homework');
771: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
1.241 albertel 772: if ($default eq -1) {
1.207 albertel 773: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
774: } else {
775: &Apache::run::run($default,$safeeval);
776: $Apache::lonxml::default_homework_loaded=1;
777: }
1.17 albertel 778: }
779:
1.328 albertel 780: my $metamode_was;
1.55 albertel 781: sub startredirection {
1.328 albertel 782: if (!$Apache::lonxml::redirection) {
783: $metamode_was=$Apache::lonxml::metamode;
784: }
785: $Apache::lonxml::metamode=0;
786: $Apache::lonxml::redirection++;
787: push (@Apache::lonxml::outputstack, '');
1.55 albertel 788: }
789:
790: sub endredirection {
1.328 albertel 791: if (!$Apache::lonxml::redirection) {
792: &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
793: return '';
794: }
795: $Apache::lonxml::redirection--;
796: if (!$Apache::lonxml::redirection) {
797: $Apache::lonxml::metamode=$metamode_was;
798: }
799: pop @Apache::lonxml::outputstack;
1.97 albertel 800: }
801:
802: sub end_tag {
803: my ($tagstack,$parstack,$token)=@_;
804: pop(@$tagstack);
805: pop(@$parstack);
806: &decreasedepth($token);
1.55 albertel 807: }
808:
1.17 albertel 809: sub initdepth {
810: @Apache::lonxml::depthcounter=();
811: $Apache::lonxml::depth=-1;
812: $Apache::lonxml::olddepth=-1;
813: }
814:
815: sub increasedepth {
1.19 albertel 816: my ($token) = @_;
1.17 albertel 817: $Apache::lonxml::depth++;
818: $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
819: if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
820: $Apache::lonxml::olddepth=$Apache::lonxml::depth;
821: }
1.42 albertel 822: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 823: &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
1.54 albertel 824: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 825: }
826:
827: sub decreasedepth {
1.19 albertel 828: my ($token) = @_;
1.17 albertel 829: $Apache::lonxml::depth--;
1.36 albertel 830: if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
831: $#Apache::lonxml::depthcounter--;
832: $Apache::lonxml::olddepth=$Apache::lonxml::depth+1;
833: }
1.43 albertel 834: if ( $Apache::lonxml::depth < -1) {
1.280 www 835: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1.43 albertel 836: $Apache::lonxml::depth='-1';
837: }
1.42 albertel 838: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 839: &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n");
1.54 albertel 840: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 841: }
1.19 albertel 842:
1.180 albertel 843: sub get_all_text_unbalanced {
1.190 albertel 844: #there is a copy of this in lonpublisher.pm
1.326 albertel 845: my($tag,$pars)= @_;
846: my $token;
847: my $result='';
848: $tag='<'.$tag.'>';
849: while ($token = $$pars[-1]->get_token) {
850: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
851: $result.=$token->[1];
852: } elsif ($token->[0] eq 'PI') {
853: $result.=$token->[2];
854: } elsif ($token->[0] eq 'S') {
855: $result.=$token->[4];
856: } elsif ($token->[0] eq 'E') {
857: $result.=$token->[2];
858: }
859: if ($result =~ /\Q$tag\E/is) {
860: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
861: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
862: #&Apache::lonxml::debug('Result is :'.$1);
863: $redo=$tag.$redo;
864: &Apache::lonxml::newparser($pars,\$redo);
865: last;
866: }
867: }
868: return $result
1.204 albertel 869: }
870:
871: sub increment_counter {
1.247 albertel 872: my ($increment) = @_;
1.289 sakharuk 873: if (defined($increment) && $increment gt 0) {
874: $Apache::lonxml::counter+=$increment;
875: } else {
876: $Apache::lonxml::counter++;
1.247 albertel 877: }
1.289 sakharuk 878: $Apache::lonxml::counter_changed=1;
1.204 albertel 879: }
880:
881: sub init_counter {
882: if (defined($ENV{'form.counter'})) {
883: $Apache::lonxml::counter=$ENV{'form.counter'};
1.247 albertel 884: $Apache::lonxml::counter_changed=0;
1.237 sakharuk 885: } else {
1.204 albertel 886: $Apache::lonxml::counter=1;
1.247 albertel 887: $Apache::lonxml::counter_changed=1;
1.204 albertel 888: }
889: }
890:
891: sub store_counter {
892: &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
893: return '';
1.180 albertel 894: }
895:
1.19 albertel 896: sub get_all_text {
1.270 albertel 897: my($tag,$pars,$style)= @_;
898: my $gotfullstack=1;
899: if (ref($pars) ne 'ARRAY') {
900: $gotfullstack=0;
901: $pars=[$pars];
902: }
903: if (ref($style) ne 'HASH') {
904: $style={};
905: }
906: my $depth=0;
907: my $token;
908: my $result='';
909: if ( $tag =~ m:^/: ) {
910: my $tag=substr($tag,1);
911: #&Apache::lonxml::debug("have:$tag:");
912: my $top_empty=0;
913: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
914: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
915: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
916: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
917: $result.=$token->[1];
918: } elsif ($token->[0] eq 'PI') {
919: $result.=$token->[2];
920: } elsif ($token->[0] eq 'S') {
1.316 albertel 921: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
922: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
923: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 924: $result.=$token->[4];
925: } elsif ($token->[0] eq 'E') {
1.316 albertel 926: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1.270 albertel 927: #skip sending back the last end tag
1.283 albertel 928: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1.270 albertel 929: my $string=
930: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
931: $$style{'/'.$token->[1]}.
932: $token->[2].
933: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
934: &Apache::lonxml::newparser($pars,\$string);
935: #&Apache::lonxml::debug("reParsing $string");
936: next;
937: }
938: if ($depth > -1) {
939: $result.=$token->[2];
940: } else {
941: $$pars[-1]->unget_token($token);
942: }
943: }
944: }
945: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
946: if (($depth >=0) && ($#$pars > 0) ) {
947: pop(@$pars);
948: pop(@Apache::lonxml::pwd);
949: }
950: }
951: if ($top_empty && $depth >= 0) {
952: #never found the end tag ran out of text, throw error send back blank
953: &error('Never found end tag for <'.$tag.
954: '> current string <pre>'.
1.314 albertel 955: &HTML::Entities::encode($result,'<>&"').
1.270 albertel 956: '</pre>');
957: if ($gotfullstack) {
958: my $newstring='</'.$tag.'>'.$result;
959: &Apache::lonxml::newparser($pars,\$newstring);
960: }
961: $result='';
962: }
963: } else {
964: while ($#$pars > -1) {
965: while ($token = $$pars[-1]->get_token) {
966: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
967: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
968: ($token->[0] eq 'D')) {
969: $result.=$token->[1];
970: } elsif ($token->[0] eq 'PI') {
971: $result.=$token->[2];
972: } elsif ($token->[0] eq 'S') {
1.316 albertel 973: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1.270 albertel 974: $$pars[-1]->unget_token($token); last;
975: } else {
976: $result.=$token->[4];
977: }
1.316 albertel 978: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
979: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 980: } elsif ($token->[0] eq 'E') {
981: $result.=$token->[2];
982: }
983: }
984: if (($#$pars > 0) ) {
985: pop(@$pars);
986: pop(@Apache::lonxml::pwd);
987: } else { last; }
988: }
989: }
990: #&Apache::lonxml::debug("Exit:$result:");
991: return $result
1.19 albertel 992: }
993:
1.23 albertel 994: sub newparser {
995: my ($parser,$contentref,$dir) = @_;
1.167 albertel 996: push (@$parser,HTML::LCParser->new($contentref));
1.56 albertel 997: $$parser['-1']->xml_mode('1');
1.23 albertel 998: if ( $dir eq '' ) {
999: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1000: } else {
1001: push (@Apache::lonxml::pwd, $dir);
1002: }
1003: }
1.1 sakharuk 1004:
1.8 albertel 1005: sub parstring {
1006: my ($token) = @_;
1007: my $temp='';
1.142 albertel 1008: foreach (@{$token->[3]}) {
1.35 www 1009: unless ($_=~/\W/) {
1.42 albertel 1010: my $val=$token->[2]->{$_};
1.231 albertel 1011: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1.51 albertel 1012: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1.267 sakharuk 1013: $temp .= "my \$$_=\"$val\";";
1.20 albertel 1014: }
1.142 albertel 1015: }
1.8 albertel 1016: return $temp;
1017: }
1.22 albertel 1018:
1.34 www 1019: sub writeallows {
1.126 www 1020: unless ($#extlinks>=0) { return; }
1.34 www 1021: my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
1.111 www 1022: if ($ENV{'httpref.'.$thisurl}) {
1023: $thisurl=$ENV{'httpref.'.$thisurl};
1024: }
1.34 www 1025: my $thisdir=$thisurl;
1026: $thisdir=~s/\/[^\/]+$//;
1027: my %httpref=();
1.142 albertel 1028: foreach (@extlinks) {
1.34 www 1029: $httpref{'httpref.'.
1.125 www 1030: &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl;
1.142 albertel 1031: }
1.126 www 1032: @extlinks=();
1.34 www 1033: &Apache::lonnet::appenv(%httpref);
1034: }
1035:
1.281 albertel 1036: sub register_ssi {
1037: my ($url,%form)=@_;
1038: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1039: return '';
1040: }
1041:
1042: sub do_registered_ssi {
1043: foreach my $info (@Apache::lonxml::ssi_info) {
1044: my %form=%{ $info->{'form'}};
1045: my $url=$info->{'url'};
1046: &Apache::lonnet::ssi($url,%form);
1047: }
1048: }
1.66 www 1049: #
1050: # Afterburner handles anchors, highlights and links
1051: #
1052: sub afterburn {
1053: my $result=shift;
1.154 albertel 1054: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1055: ['highlight','anchor','link']);
1.66 www 1056: if ($ENV{'form.highlight'}) {
1.142 albertel 1057: foreach (split(/\,/,$ENV{'form.highlight'})) {
1.66 www 1058: my $anchorname=$_;
1059: my $matchthis=$anchorname;
1060: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1061: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1062: }
1.66 www 1063: }
1064: if ($ENV{'form.link'}) {
1.142 albertel 1065: foreach (split(/\,/,$ENV{'form.link'})) {
1.66 www 1066: my ($anchorname,$linkurl)=split(/\>/,$_);
1067: my $matchthis=$anchorname;
1068: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1069: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1070: }
1.66 www 1071: }
1072: if ($ENV{'form.anchor'}) {
1073: my $anchorname=$ENV{'form.anchor'};
1074: my $matchthis=$anchorname;
1075: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1076: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1.66 www 1077: $result.=(<<"ENDSCRIPT");
1.226 albertel 1078: <script type="text/javascript">
1.66 www 1079: document.location.hash='$anchorname';
1080: </script>
1081: ENDSCRIPT
1082: }
1083: return $result;
1084: }
1085:
1.79 www 1086: sub storefile {
1087: my ($file,$contents)=@_;
1.290 albertel 1088: &Apache::lonnet::correct_line_ends(\$contents);
1.79 www 1089: if (my $fh=Apache::File->new('>'.$file)) {
1090: print $fh $contents;
1091: $fh->close();
1.271 www 1092: return 1;
1.147 albertel 1093: } else {
1.271 www 1094: &warning("Unable to save file $file");
1095: return 0;
1.79 www 1096: }
1097: }
1098:
1.151 albertel 1099: sub createnewhtml {
1.321 www 1100: my $title=&mt('Title of document goes here');
1101: my $body=&mt('Body of document goes here');
1102: my $filecontents=(<<SIMPLECONTENT);
1103: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml/11/DTD/xhtml11.dtd">
1.78 www 1104: <html>
1105: <head>
1.321 www 1106: <title>$title</title>
1.78 www 1107: </head>
1108: <body bgcolor="#FFFFFF">
1.321 www 1109: $body
1.78 www 1110: </body>
1111: </html>
1112: SIMPLECONTENT
1.321 www 1113: return $filecontents;
1.151 albertel 1114: }
1115:
1.274 albertel 1116: sub createnewsty {
1117: my $filecontents=(<<SIMPLECONTENT);
1118: <definetag name="">
1119: <render>
1120: <web></web>
1121: <tex></tex>
1122: </render>
1123: </definetag>
1124: SIMPLECONTENT
1125: return $filecontents;
1126: }
1127:
1.147 albertel 1128:
1.151 albertel 1129: sub inserteditinfo {
1.274 albertel 1130: my ($result,$filecontents,$filetype)=@_;
1.314 albertel 1131: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1.147 albertel 1132: # my $editheader='<a href="#editsection">Edit below</a><hr />';
1.274 albertel 1133: my $xml_help = '';
1.321 www 1134: my $initialize='';
1.274 albertel 1135: if ($filetype eq 'html') {
1.323 www 1136: my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
1.333 www 1137: $initialize=&Apache::lonhtmlcommon::htmlareaheaders().
1138: &Apache::lonhtmlcommon::spellheader().(<<FULLPAGE);
1.321 www 1139: <script type="text/javascript">
1.323 www 1140: $addbuttons
1141:
1.321 www 1142: HTMLArea.loadPlugin("FullPage");
1143:
1144: function initDocument() {
1.323 www 1145: var editor=new HTMLArea("filecont",config);
1.321 www 1146: editor.registerPlugin(FullPage);
1147: editor.generate();
1148: }
1149: </script>
1150: FULLPAGE
1151: $result=~s/\<body([^\>]*)\>/\<body onload="initDocument()" $1\>/i;
1152: $xml_help=&Apache::loncommon::helpLatexCheatsheet();
1.274 albertel 1153: }
1154: my $cleanbut = '';
1155: if ($filetype eq 'html') {
1.280 www 1156: $cleanbut='<input type="submit" name="attemptclean" value="'.
1157: &mt('Save and then attempt to clean HTML').'" />';
1.274 albertel 1158: }
1.254 albertel 1159: my $titledisplay=&display_title();
1.280 www 1160: my %lt=&Apache::lonlocal::texthash('st' => 'Save this',
1161: 'vi' => 'View',
1162: 'ed' => 'Edit');
1.161 albertel 1163: my $buttons=(<<BUTTONS);
1.274 albertel 1164: $cleanbut
1.304 matthew 1165: <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
1166: <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
1.161 albertel 1167: BUTTONS
1.333 www 1168: $buttons.=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
1.78 www 1169: my $editfooter=(<<ENDFOOTER);
1.321 www 1170: $initialize
1.78 www 1171: <hr />
1172: <a name="editsection" />
1.333 www 1173: <form method="post" name="xmledit">
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");
1.327 sakharuk 1337: # &Apache::lonnet::logthis($_[0]);
1.298 albertel 1338: }
1.22 albertel 1339: }
1.49 albertel 1340:
1.22 albertel 1341: sub error {
1.205 www 1342: $errorcount++;
1.300 albertel 1343: my $request=$Apache::lonxml::request;
1344: if (!$request) { $request=Apache->request; }
1.74 albertel 1345: if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
1.166 matthew 1346: # If printing in construction space, put the error inside <pre></pre>
1.309 albertel 1347: push(@Apache::lonxml::error_messages,
1348: $Apache::lonxml::warnings_error_header.
1349: "<b>ERROR:</b>".join("<br />\n",@_)."<br />\n");
1.295 albertel 1350: $Apache::lonxml::warnings_error_header='';
1.52 albertel 1351: } else {
1.309 albertel 1352: push(@Apache::lonxml::error_messages,
1353: "<b>An Error occured while processing this resource. The instructor has been notified.</b> <br />");
1.52 albertel 1354: #notify author
1.146 albertel 1355: &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
1.52 albertel 1356: #notify course
1357: if ( $ENV{'request.course.id'} ) {
1.209 www 1358: my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
1.143 www 1359: my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
1.209 www 1360: foreach (keys %users) {
1361: my ($user,$domain) = split(/:/, $_);
1.143 www 1362: &Apache::lonmsg::user_normal_msg($user,$domain,
1.146 albertel 1363: "Error [$declutter]",join('<br />',@_));
1.52 albertel 1364: }
1365: }
1366: }
1.22 albertel 1367: }
1.49 albertel 1368:
1.22 albertel 1369: sub warning {
1.295 albertel 1370: $warningcount++;
1.261 albertel 1371:
1.295 albertel 1372: if ($ENV{'form.grade_target'} ne 'tex') {
1373: if ($ENV{'request.state'} eq 'construct' || $Apache::lonxml::debug) {
1.300 albertel 1374: my $request=$Apache::lonxml::request;
1375: if (!$request) { $request=Apache->request; }
1.309 albertel 1376: push(@Apache::lonxml::warning_messages,
1377: $Apache::lonxml::warnings_error_header.
1378: "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n");
1.295 albertel 1379: $Apache::lonxml::warnings_error_header='';
1380: }
1381: }
1.309 albertel 1382: }
1383:
1384: sub info {
1385: if ($ENV{'form.grade_target'} ne 'tex'
1386: && $ENV{'request.state'} eq 'construct') {
1387: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
1388: }
1389: }
1390:
1391: sub message_location {
1392: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
1393: }
1394:
1395: sub add_messages {
1396: my ($msg)=@_;
1397: my $result=join(' ',
1398: @Apache::lonxml::info_messages,
1399: @Apache::lonxml::error_messages,
1400: @Apache::lonxml::warning_messages);
1401: undef(@Apache::lonxml::info_messages);
1402: undef(@Apache::lonxml::error_messages);
1403: undef(@Apache::lonxml::warning_messages);
1404: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
1405: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
1.83 albertel 1406: }
1407:
1408: sub get_param {
1.213 albertel 1409: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1410: if ( ! $context ) { $context = -1; }
1411: my $args ='';
1412: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1413: if ( ! $Apache::lonxml::usestyle ) {
1414: $args=$Apache::lonxml::style_values.$args;
1415: }
1.213 albertel 1416: if ( ! $args ) { return undef; }
1417: if ( $case_insensitive ) {
1418: if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
1419: return &Apache::run::run("{$args;".'return $'.$param.'}',
1420: $safeeval); #'
1421: } else {
1422: return undef;
1423: }
1424: } else {
1425: if ( $args =~ /my \$\Q$param\E=\"/ ) {
1426: return &Apache::run::run("{$args;".'return $'.$param.'}',
1427: $safeeval); #'
1428: } else {
1429: return undef;
1430: }
1431: }
1.22 albertel 1432: }
1433:
1.132 albertel 1434: sub get_param_var {
1.213 albertel 1435: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 1436: if ( ! $context ) { $context = -1; }
1437: my $args ='';
1438: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1439: if ( ! $Apache::lonxml::usestyle ) {
1440: $args=$Apache::lonxml::style_values.$args;
1441: }
1.230 albertel 1442: &Apache::lonxml::debug("Args are $args param is $param");
1.213 albertel 1443: if ($case_insensitive) {
1444: if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
1445: return undef;
1446: }
1447: } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; }
1.132 albertel 1448: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.230 albertel 1449: &Apache::lonxml::debug("first run is $value");
1450: if ($value =~ /^[\$\@\%]\w+$/) {
1451: &Apache::lonxml::debug("doing second");
1452: my @result=&Apache::run::run("return $value",$safeeval,1);
1453: if (!defined($result[0])) {
1454: return $value
1455: } else {
1456: if (wantarray) { return @result; } else { return $result[0]; }
1457: }
1.132 albertel 1458: } else {
1459: return $value;
1460: }
1461: }
1462:
1.74 albertel 1463: sub register_insert {
1.75 albertel 1464: my @data = split /\n/, &Apache::lonnet::getfile('/home/httpd/lonTabs/insertlist.tab');
1.74 albertel 1465: my $i;
1.76 albertel 1466: my $tagnum=0;
1.74 albertel 1467: my @order;
1468: for ($i=0;$i < $#data; $i++) {
1469: my $line = $data[$i];
1470: if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; }
1471: if ( $line =~ /TABLE/ ) { last; }
1.268 bowersj2 1472: my ($tag,$descrip,$color,$function,$show,$helpfile,$helpdesc) = split(/,/, $line);
1.135 albertel 1473: if ($tag) {
1474: $insertlist{"$tagnum.tag"} = $tag;
1475: $insertlist{"$tagnum.description"} = $descrip;
1476: $insertlist{"$tagnum.color"} = $color;
1477: $insertlist{"$tagnum.function"} = $function;
1478: if (!defined($show)) { $show='yes'; }
1479: $insertlist{"$tagnum.show"}= $show;
1.268 bowersj2 1480: $insertlist{"$tagnum.helpfile"} = $helpfile;
1481: $insertlist{"$tagnum.helpdesc"} = $helpdesc;
1.135 albertel 1482: $insertlist{"$tag.num"}=$tagnum;
1483: $tagnum++;
1484: }
1.74 albertel 1485: }
1.76 albertel 1486: $i++; #skipping TABLE line
1487: $tagnum = 0;
1.74 albertel 1488: for (;$i < $#data;$i++) {
1489: my $line = $data[$i];
1.76 albertel 1490: my ($mnemonic,@which) = split(/ +/,$line);
1491: my $tag = $insertlist{"$tagnum.tag"};
1.144 matthew 1492: for (my $j=0;$j <=$#which;$j++) {
1.74 albertel 1493: if ( $which[$j] eq 'Y' ) {
1.76 albertel 1494: if ($insertlist{"$j.show"} ne 'no') {
1495: push(@{ $insertlist{"$tag.which"} },$j);
1496: }
1.74 albertel 1497: }
1498: }
1.76 albertel 1499: $tagnum++;
1.74 albertel 1500: }
1501: }
1.98 albertel 1502:
1503: sub description {
1504: my ($token)=@_;
1.138 albertel 1505: my $tagnum;
1506: my $tag=$token->[1];
1507: foreach my $namespace (reverse @Apache::lonxml::namespace) {
1508: my $testtag=$namespace.'::'.$tag;
1509: $tagnum=$insertlist{"$testtag.num"};
1510: if (defined($tagnum)) { last; }
1511: }
1512: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
1513: return $insertlist{$tagnum.'.description'};
1.268 bowersj2 1514: }
1515:
1516: # Returns a list containing the help file, and the description
1517: sub helpinfo {
1518: my ($token)=@_;
1519: my $tagnum;
1520: my $tag=$token->[1];
1521: foreach my $namespace (reverse @Apache::lonxml::namespace) {
1522: my $testtag=$namespace.'::'.$tag;
1523: $tagnum=$insertlist{"$testtag.num"};
1524: if (defined($tagnum)) { last; }
1525: }
1526: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
1527: return ($insertlist{$tagnum.'.helpfile'}, $insertlist{$tagnum.'.helpdesc'});
1.98 albertel 1528: }
1.123 albertel 1529:
1530: # ----------------------------------------------------------------- whichuser
1531: # returns a list of $symb, $courseid, $domain, $name that is correct for
1532: # calls to lonnet functions for this setup.
1533: # - looks for form.grade_ parameters
1534: sub whichuser {
1.262 matthew 1535: my ($passedsymb)=@_;
1.245 albertel 1536: my ($symb,$courseid,$domain,$name,$publicuser);
1.123 albertel 1537: if (defined($ENV{'form.grade_symb'})) {
1538: my $tmp_courseid=$ENV{'form.grade_courseid'};
1.269 albertel 1539: my $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid);
1.123 albertel 1540: if ($allowed) {
1541: $symb=$ENV{'form.grade_symb'};
1542: $courseid=$ENV{'form.grade_courseid'};
1543: $domain=$ENV{'form.grade_domain'};
1544: $name=$ENV{'form.grade_username'};
1545: }
1.134 albertel 1546: } else {
1.262 matthew 1547: if (!$passedsymb) {
1548: $symb=&Apache::lonnet::symbread();
1549: } else {
1550: $symb=$passedsymb;
1551: }
1.244 albertel 1552: $courseid=$ENV{'request.course.id'};
1553: $domain=$ENV{'user.domain'};
1554: $name=$ENV{'user.name'};
1555: if ($name eq 'public' && $domain eq 'public') {
1556: if (!defined($ENV{'form.username'})) {
1557: $ENV{'form.username'}.=time.rand(10000000);
1558: }
1559: $name.=$ENV{'form.username'};
1560: }
1.123 albertel 1561: }
1.245 albertel 1562: return ($symb,$courseid,$domain,$name,$publicuser);
1.123 albertel 1563: }
1564:
1.1 sakharuk 1565: 1;
1566: __END__
1.68 www 1567:
1568:
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