Annotation of loncom/xml/lonxml.pm, revision 1.336
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.336 ! albertel 4: # $Id: lonxml.pm,v 1.335 2004/08/10 18:25:53 sakharuk 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 $output;
165: }
166:
167: sub xmlend {
1.335 sakharuk 168: my ($target,$parser)=@_;
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: }
1.335 sakharuk 175: my $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
1.334 sakharuk 176: if ($target eq 'tex') {
1.335 sakharuk 177: $discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
1.334 sakharuk 178: &Apache::lonxml::newparser($parser,\$discussion,'');
179: return '';
180: } else {
181: return $discussion.'</html>';
182: }
1.119 www 183: }
184:
185: sub tokeninputfield {
1.120 www 186: my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
187: $defhost=~tr/a-z/A-Z/;
1.119 www 188: return (<<ENDINPUTFIELD)
1.226 albertel 189: <script type="text/javascript">
1.120 www 190: function updatetoken() {
191: var comp=new Array;
192: var barcode=unescape(document.tokeninput.barcode.value);
193: comp=barcode.split('*');
194: if (typeof(comp[0])!="undefined") {
195: document.tokeninput.codeone.value=comp[0];
196: }
197: if (typeof(comp[1])!="undefined") {
198: document.tokeninput.codetwo.value=comp[1];
199: }
200: if (typeof(comp[2])!="undefined") {
201: comp[2]=comp[2].toUpperCase();
202: document.tokeninput.codethree.value=comp[2];
203: }
204: document.tokeninput.barcode.value='';
205: }
206: </script>
207: <form method="post" name="tokeninput">
1.119 www 208: <table border="2" bgcolor="#FFFFBB">
209: <tr><th>DocID Checkin</th></tr>
210: <tr><td>
211: <table>
212: <tr>
213: <td>Scan in Barcode</td>
1.120 www 214: <td><input type="text" size="22" name="barcode"
215: onChange="updatetoken()"/></td>
1.119 www 216: </tr>
217: <tr><td><i>or</i> Type in DocID</td>
218: <td>
219: <input type="text" size="5" name="codeone" />
1.120 www 220: <b><font size="+2">*</font></b>
1.119 www 221: <input type="text" size="5" name="codetwo" />
1.120 www 222: <b><font size="+2">*</font></b>
223: <input type="text" size="10" name="codethree" value="$defhost"
224: onChange="this.value=this.value.toUpperCase()" />
1.119 www 225: </td></tr>
226: </table>
227: </td></tr>
228: <tr><td><input type="submit" value="Check in DocID" /></td></tr>
229: </table>
230: </form>
231: ENDINPUTFIELD
1.112 www 232: }
233:
1.116 www 234: sub maketoken {
1.118 www 235: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1.112 www 236: unless ($symb) {
237: $symb=&Apache::lonnet::symbread();
238: }
239: unless ($tuname) {
240: $tuname=$ENV{'user.name'};
241: $tudom=$ENV{'user.domain'};
242: $tcrsid=$ENV{'request.course.id'};
243: }
1.116 www 244:
1.118 www 245: return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
246: }
247:
248: sub printtokenheader {
1.133 albertel 249: my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
1.116 www 250: unless ($token) { return ''; }
1.118 www 251:
1.133 albertel 252: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
253: unless ($tsymb) {
254: $tsymb=$symb;
1.118 www 255: }
256: unless ($tuname) {
1.133 albertel 257: $tuname=$name;
258: $tudom=$domain;
259: $tcrsid=$courseid;
1.118 www 260: }
1.114 www 261:
262: my %reply=&Apache::lonnet::get('environment',
263: ['firstname','middlename','lastname','generation'],
264: $tudom,$tuname);
265: my $plainname=$reply{'firstname'}.' '.
266: $reply{'middlename'}.' '.
267: $reply{'lastname'}.' '.
268: $reply{'generation'};
269:
1.112 www 270: if ($target eq 'web') {
1.145 www 271: my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
1.115 www 272: return
1.221 albertel 273: '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
1.284 www 274: &mt('Checked out for').' '.$plainname.
275: '<br />'.&mt('User').': '.$tuname.' at '.$tudom.
276: '<br />'.&mt('ID').': '.$idhash{$tuname}.
277: '<br />'.&mt('CourseID').': '.$tcrsid.
278: '<br />'.&mt('Course').': '.$ENV{'course.'.$tcrsid.'.description'}.
279: '<br />'.&mt('DocID').': '.$token.
280: '<br />'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'<hr />';
1.112 www 281: } else {
1.121 albertel 282: return $token;
1.112 www 283: }
1.68 www 284: }
285:
1.70 www 286: sub fontsettings() {
287: my $headerstring='';
288: if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
1.248 albertel 289: $headerstring.=
290: '<meta Content-Type="text/html; charset=x-mac-roman">';
1.263 albertel 291: } elsif (!$ENV{'browser.mathml'} && $ENV{'browser.unicode'}) {
1.248 albertel 292: $headerstring.=
293: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
1.70 www 294: }
295: return $headerstring;
1.68 www 296: }
297:
1.48 albertel 298: sub printalltags {
299: my $temp;
300: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.141 albertel 301: &Apache::lonxml::debug("$temp -- ".
302: join(',',@{ $Apache::lonxml::alltags{$temp} }));
1.48 albertel 303: }
304: }
1.31 sakharuk 305:
1.3 sakharuk 306: sub xmlparse {
1.172 albertel 307: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 308:
1.172 albertel 309: &setup_globals($request,$target);
1.232 albertel 310: &Apache::inputtags::initialize_inputtags();
311: &Apache::outputtags::initialize_outputtags();
312: &Apache::edit::initialize_edit();
1.287 albertel 313: &Apache::londefdef::initialize_londefdef();
1.244 albertel 314:
1.178 www 315: #
316: # do we have a course style file?
317: #
318:
1.208 albertel 319: if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') {
1.178 www 320: my $bodytext=
321: $ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'};
322: if ($bodytext) {
323: my $location=&Apache::lonnet::filelocation('',$bodytext);
324: my $styletext=&Apache::lonnet::getfile($location);
325: if ($styletext ne '-1') {
326: %style_for_target = (%style_for_target,
327: &Apache::style::styleparser($target,$styletext));
328: }
329: }
1.292 sakharuk 330: } elsif ($ENV{'construct.style'} && ($ENV{'request.state'} eq 'construct')) {
331: my $location=&Apache::lonnet::filelocation('',$ENV{'construct.style'});
1.291 sakharuk 332: my $styletext=&Apache::lonnet::getfile($location);
333: if ($styletext ne '-1') {
334: %style_for_target = (%style_for_target,
335: &Apache::style::styleparser($target,$styletext));
336: }
1.178 www 337: }
1.255 sakharuk 338: #&printalltags();
1.16 albertel 339: my @pars = ();
1.23 albertel 340: my $pwd=$ENV{'request.filename'};
341: $pwd =~ s:/[^/]*$::;
342: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 343:
1.3 sakharuk 344: my $safeeval = new Safe;
1.40 albertel 345: my $safehole = new Safe::Hole;
1.82 ng 346: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 347: #-------------------- Redefinition of the target in the case of compound target
348:
349: ($target, my @tenta) = split('&&',$target);
350:
1.150 albertel 351: my @stack = ();
1.3 sakharuk 352: my @parstack = ();
1.17 albertel 353: &initdepth;
1.67 www 354:
1.101 albertel 355: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
356: $safeeval,\%style_for_target);
1.255 sakharuk 357:
1.125 www 358: if ($ENV{'request.uri'}) {
359: &writeallows($ENV{'request.uri'});
360: }
1.281 albertel 361: &do_registered_ssi();
1.204 albertel 362: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.3 sakharuk 363: return $finaloutput;
1.106 www 364: }
365:
366: sub htmlclean {
1.107 www 367: my ($raw,$full)=@_;
1.106 www 368:
369: my $tree = HTML::TreeBuilder->new;
370: $tree->ignore_unknown(0);
1.140 albertel 371:
1.106 www 372: $tree->parse($raw);
373:
1.107 www 374: my $output= $tree->as_HTML(undef,' ');
1.140 albertel 375:
1.161 albertel 376: $output=~s/\<(br|hr|img|meta|allow)(.*?)\>/\<$1$2 \/\>/gis;
1.111 www 377: $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
1.107 www 378: unless ($full) {
379: $output=~s/\<[\/]*(body|head|html)\>//gis;
380: }
1.106 www 381:
382: $tree = $tree->delete;
383:
384: return $output;
1.15 albertel 385: }
386:
1.191 albertel 387: sub latex_special_symbols {
1.272 albertel 388: my ($string,$where)=@_;
1.235 sakharuk 389: if ($where eq 'header') {
1.272 albertel 390: $string =~ s/(\\|_|\^)/ /g;
1.311 albertel 391: $string =~ s/(\$|%|\{|\})/\\$1/g;
1.273 sakharuk 392: $string =~ s/_/ /g;
1.311 albertel 393: $string=&Apache::lonprintout::character_chart($string);
394: # any & or # leftover should be safe to just escape
395: $string=~s/([^\\])\&/$1\\\&/g;
396: $string=~s/([^\\])\#/$1\\\#/g;
1.229 sakharuk 397: } else {
1.312 albertel 398: $string=~s/\\/\\ensuremath{\\backslash}/g;
1.313 albertel 399: $string=~s/([^\\]|^)\%/$1\\\%/g;
1.329 sakharuk 400: $string=~s/([^\\]|^)\$/$1\\\$/g;
401: $string=~s/([^\\])\_/$1\\_/g;
1.310 sakharuk 402: $string=~s/\$\$/\$\\\$/g;
1.329 sakharuk 403: $string=~s/\_\_/\_\\\_/g;
1.310 sakharuk 404: $string=~s/\#\#/\#\\\#/g;
1.313 albertel 405: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
1.310 sakharuk 406: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
1.311 albertel 407: $string=&Apache::lonprintout::character_chart($string);
408: # any & or # leftover should be safe to just escape
1.313 albertel 409: $string=~s/([^\\]|^)\&/$1\\\&/g;
410: $string=~s/([^\\]|^)\#/$1\\\#/g;
1.332 sakharuk 411: $string=~s/\|/\$\\mid\$/g;
1.310 sakharuk 412: #single { or } How to escape?
1.229 sakharuk 413: }
1.272 albertel 414: return $string;
1.188 sakharuk 415: }
416:
1.101 albertel 417: sub inner_xmlparse {
418: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
419: my $finaloutput = '';
420: my $result;
421: my $token;
1.258 albertel 422: my $dontpop=0;
1.101 albertel 423: while ( $#$pars > -1 ) {
424: while ($token = $$pars['-1']->get_token) {
1.261 albertel 425: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
1.101 albertel 426: if ($metamode<1) {
1.190 albertel 427: my $text=$token->[1];
1.193 albertel 428: if ($token->[0] eq 'C' && $target eq 'tex') {
1.239 sakharuk 429: $text = '';
430: # $text = '%'.$text."\n";
1.182 sakharuk 431: }
1.190 albertel 432: $result.=$text;
1.101 albertel 433: }
1.261 albertel 434: } elsif (($token->[0] eq 'D')) {
435: if ($metamode<1 && $target eq 'web') {
436: my $text=$token->[1];
437: $result.=$text;
438: }
1.101 albertel 439: } elsif ($token->[0] eq 'PI') {
1.261 albertel 440: if ($metamode<1 && $target eq 'web') {
1.101 albertel 441: $result=$token->[2];
442: }
443: } elsif ($token->[0] eq 'S') {
1.140 albertel 444: # add tag to stack
1.101 albertel 445: push (@$stack,$token->[1]);
446: # add parameters list to another stack
447: push (@$parstack,&parstring($token));
1.140 albertel 448: &increasedepth($token);
1.212 albertel 449: if ($Apache::lonxml::usestyle &&
450: exists($$style_for_target{$token->[1]})) {
451: $Apache::lonxml::usestyle=0;
452: my $string=$$style_for_target{$token->[1]}.
453: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
454: &Apache::lonxml::newparser($pars,\$string);
1.257 albertel 455: $Apache::lonxml::style_values=$$parstack[-1];
1.259 albertel 456: $Apache::lonxml::style_end_values=$$parstack[-1];
1.101 albertel 457: } else {
458: $result = &callsub("start_$token->[1]", $target, $token, $stack,
459: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 460: }
1.101 albertel 461: } elsif ($token->[0] eq 'E') {
1.212 albertel 462: if ($Apache::lonxml::usestyle &&
463: exists($$style_for_target{'/'."$token->[1]"})) {
464: $Apache::lonxml::usestyle=0;
465: my $string=$$style_for_target{'/'.$token->[1]}.
1.258 albertel 466: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
1.212 albertel 467: &Apache::lonxml::newparser($pars,\$string);
1.259 albertel 468: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
469: $Apache::lonxml::style_end_values='';
1.258 albertel 470: $dontpop=1;
1.101 albertel 471: } else {
1.258 albertel 472: #clear out any tags that didn't end
473: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
474: my $lasttag=$$stack[-1];
1.317 albertel 475: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
1.258 albertel 476: &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
477: last;
478: } else {
479: &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file');
480: &end_tag($stack,$parstack,$token);
481: }
482: }
483: $result = &callsub("end_$token->[1]", $target, $token, $stack,
484: $parstack, $pars,$safeeval, $style_for_target);
1.101 albertel 485: }
486: } else {
487: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
488: }
489: #evaluate variable refs in result
1.282 albertel 490: if ($Apache::lonxml::post_evaluate &&$result ne "") {
1.257 albertel 491: my $extras;
492: if (!$Apache::lonxml::usestyle) {
493: $extras=$Apache::lonxml::style_values;
494: }
1.101 albertel 495: if ( $#$parstack > -1 ) {
1.257 albertel 496: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
1.101 albertel 497: } else {
1.257 albertel 498: $result= &Apache::run::evaluate($result,$safeeval,$extras);
1.101 albertel 499: }
1.163 albertel 500: }
1.282 albertel 501: $Apache::lonxml::post_evaluate=1;
502:
1.190 albertel 503: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
1.249 albertel 504: #Style file definitions should be correct
1.250 albertel 505: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
1.311 albertel 506: $result=&latex_special_symbols($result);
1.249 albertel 507: }
1.190 albertel 508: }
509:
1.169 albertel 510: if ($Apache::lonxml::redirection) {
511: $Apache::lonxml::outputstack['-1'] .= $result;
512: } else {
513: $finaloutput.=$result;
514: }
515: $result = '';
516:
1.258 albertel 517: if ($token->[0] eq 'E' && !$dontpop) {
1.101 albertel 518: &end_tag($stack,$parstack,$token);
519: }
1.258 albertel 520: $dontpop=0;
1.224 albertel 521: }
1.212 albertel 522: if ($#$pars > -1) {
523: pop @$pars;
524: pop @Apache::lonxml::pwd;
525: }
1.101 albertel 526: }
527:
528: # if ($target eq 'meta') {
529: # $finaloutput.=&endredirection;
530: # }
531:
1.169 albertel 532:
1.101 albertel 533: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
534: $finaloutput=&afterburn($finaloutput);
1.216 sakharuk 535: }
1.101 albertel 536: return $finaloutput;
537: }
1.67 www 538:
1.318 matthew 539: ##
540: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
541: ## otherwise do not call it as we do not know what it is.
542: ##
1.7 albertel 543: sub callsub {
1.84 albertel 544: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 545: my $currentstring='';
1.72 albertel 546: my $nodefault;
1.7 albertel 547: {
1.59 albertel 548: my $sub1;
1.7 albertel 549: no strict 'refs';
1.68 www 550: my $tag=$token->[1];
1.236 www 551: # get utterly rid of extended html tags
552: if ($tag=~/^x\-/i) { return ''; }
1.141 albertel 553: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 554: if (!$space) {
1.141 albertel 555: $tag=~tr/A-Z/a-z/;
1.68 www 556: $sub=~tr/A-Z/a-z/;
1.141 albertel 557: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 558: }
1.97 albertel 559:
560: my $deleted=0;
561: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
562: if (($token->[0] eq 'S') && ($target eq 'modified')) {
563: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
564: $parstack,$parser,$safeeval,
565: $style);
566: }
567: if (!$deleted) {
568: if ($space) {
1.220 albertel 569: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 570: $sub1="$space\:\:$sub";
571: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
572: $parstack,$parser,$safeeval,
573: $style);
574: } else {
1.318 matthew 575: if ($target eq 'tex') {
576: # throw away tag name
577: return '';
578: }
1.220 albertel 579: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 580: if ($metamode <1) {
581: if (defined($token->[4]) && ($metamode < 1)) {
582: $currentstring = $token->[4];
583: } else {
584: $currentstring = $token->[2];
585: }
1.62 sakharuk 586: }
1.7 albertel 587: }
1.97 albertel 588: # &Apache::lonxml::debug("nodefalt:$nodefault:");
589: if ($currentstring eq '' && $nodefault eq '') {
590: if ($target eq 'edit') {
1.220 albertel 591: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 592: if ($token->[0] eq 'S') {
593: $currentstring = &Apache::edit::tag_start($target,$token);
594: } elsif ($token->[0] eq 'E') {
595: $currentstring = &Apache::edit::tag_end($target,$token);
596: }
597: } elsif ($target eq 'modified') {
598: if ($token->[0] eq 'S') {
599: $currentstring = $token->[4];
600: $currentstring.=&Apache::edit::handle_insert();
1.210 www 601: } elsif ($token->[0] eq 'E') {
602: $currentstring = $token->[2];
603: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 604: } else {
605: $currentstring = $token->[2];
606: }
1.72 albertel 607: }
608: }
1.7 albertel 609: }
610: use strict 'refs';
611: }
612: return $currentstring;
1.82 ng 613: }
614:
1.96 albertel 615: sub setup_globals {
1.172 albertel 616: my ($request,$target)=@_;
617: $Apache::lonxml::request=$request;
1.99 albertel 618: $Apache::lonxml::registered = 0;
1.325 www 619: @Apache::lonxml::htmlareafields=();
1.205 www 620: $errorcount=0;
621: $warningcount=0;
1.207 albertel 622: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 623: $Apache::lonxml::usestyle=1;
1.204 albertel 624: &init_counter();
1.101 albertel 625: @Apache::lonxml::pwd=();
1.124 albertel 626: @Apache::lonxml::extlinks=();
1.281 albertel 627: @Apache::lonxml::ssi_info=();
1.282 albertel 628: $Apache::lonxml::post_evaluate=1;
1.295 albertel 629: $Apache::lonxml::warnings_error_header='';
1.96 albertel 630: if ($target eq 'meta') {
631: $Apache::lonxml::redirection = 0;
632: $Apache::lonxml::metamode = 1;
633: $Apache::lonxml::evaluate = 1;
634: $Apache::lonxml::import = 0;
1.129 albertel 635: } elsif ($target eq 'answer') {
636: $Apache::lonxml::redirection = 0;
637: $Apache::lonxml::metamode = 1;
638: $Apache::lonxml::evaluate = 1;
639: $Apache::lonxml::import = 1;
1.96 albertel 640: } elsif ($target eq 'grade') {
641: &startredirection;
642: $Apache::lonxml::metamode = 0;
643: $Apache::lonxml::evaluate = 1;
644: $Apache::lonxml::import = 1;
645: } elsif ($target eq 'modified') {
646: $Apache::lonxml::redirection = 0;
647: $Apache::lonxml::metamode = 0;
648: $Apache::lonxml::evaluate = 0;
649: $Apache::lonxml::import = 0;
650: } elsif ($target eq 'edit') {
651: $Apache::lonxml::redirection = 0;
652: $Apache::lonxml::metamode = 0;
653: $Apache::lonxml::evaluate = 0;
654: $Apache::lonxml::import = 0;
1.163 albertel 655: } elsif ($target eq 'analyze') {
656: $Apache::lonxml::redirection = 0;
657: $Apache::lonxml::metamode = 0;
658: $Apache::lonxml::evaluate = 1;
659: $Apache::lonxml::import = 1;
1.96 albertel 660: } else {
661: $Apache::lonxml::redirection = 0;
662: $Apache::lonxml::metamode = 0;
663: $Apache::lonxml::evaluate = 1;
664: $Apache::lonxml::import = 1;
665: }
666: }
667:
1.82 ng 668: sub init_safespace {
669: my ($target,$safeeval,$safehole,$safeinit) = @_;
670: $safeeval->permit("entereval");
671: $safeeval->permit(":base_math");
672: $safeeval->permit("sort");
1.286 albertel 673: $safeeval->permit("time");
1.82 ng 674: $safeeval->deny(":base_io");
1.102 albertel 675: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.251 albertel 676: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
1.82 ng 677: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
1.324 albertel 678: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
679: '&chem_standard_order');
680:
1.82 ng 681: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
682: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
683: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
684: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
685: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
686: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
687: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
688: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
689: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
690: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
691: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
692: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
693: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
694: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
695: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
696: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
697: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
698: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
699: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 700:
701: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
702: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
703: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
704: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
705: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
706: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
707: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
708: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
709: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
710: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
711: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
712: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
713: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
714: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
715: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
716: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
717: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
718: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
719: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
720: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
721: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
722: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
723:
724: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
725: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
726: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
727: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
728: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
729: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
730:
1.91 ng 731: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
732: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
733: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
734: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
735: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
736: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
737: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
738: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
739: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
740: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
741: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 742: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 743: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
744: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
745: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
746: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
747: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
748: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
749: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
750: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
751: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
1.305 albertel 752: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
1.311 albertel 753: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
1.322 albertel 754: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
1.91 ng 755:
1.82 ng 756: #need to inspect this class of ops
757: # $safeeval->deny(":base_orig");
1.331 albertel 758: $safeeval->permit("require");
1.91 ng 759: $safeinit .= ';$external::target="'.$target.'";';
1.121 albertel 760: my $rndseed;
1.123 albertel 761: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
762: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
1.319 albertel 763: $safeinit .= ';$external::randomseed="'.$rndseed.'";';
1.249 albertel 764: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.82 ng 765: &Apache::run::run($safeinit,$safeeval);
1.303 albertel 766:
1.207 albertel 767: }
768:
769: sub default_homework_load {
770: my ($safeeval)=@_;
771: &Apache::lonxml::debug('Loading default_homework');
772: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
1.241 albertel 773: if ($default eq -1) {
1.207 albertel 774: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
775: } else {
776: &Apache::run::run($default,$safeeval);
777: $Apache::lonxml::default_homework_loaded=1;
778: }
1.17 albertel 779: }
780:
1.328 albertel 781: my $metamode_was;
1.55 albertel 782: sub startredirection {
1.328 albertel 783: if (!$Apache::lonxml::redirection) {
784: $metamode_was=$Apache::lonxml::metamode;
785: }
786: $Apache::lonxml::metamode=0;
787: $Apache::lonxml::redirection++;
788: push (@Apache::lonxml::outputstack, '');
1.55 albertel 789: }
790:
791: sub endredirection {
1.328 albertel 792: if (!$Apache::lonxml::redirection) {
793: &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
794: return '';
795: }
796: $Apache::lonxml::redirection--;
797: if (!$Apache::lonxml::redirection) {
798: $Apache::lonxml::metamode=$metamode_was;
799: }
800: pop @Apache::lonxml::outputstack;
1.97 albertel 801: }
802:
803: sub end_tag {
804: my ($tagstack,$parstack,$token)=@_;
805: pop(@$tagstack);
806: pop(@$parstack);
807: &decreasedepth($token);
1.55 albertel 808: }
809:
1.17 albertel 810: sub initdepth {
811: @Apache::lonxml::depthcounter=();
812: $Apache::lonxml::depth=-1;
813: $Apache::lonxml::olddepth=-1;
814: }
815:
816: sub increasedepth {
1.19 albertel 817: my ($token) = @_;
1.17 albertel 818: $Apache::lonxml::depth++;
819: $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
820: if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
821: $Apache::lonxml::olddepth=$Apache::lonxml::depth;
822: }
1.42 albertel 823: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 824: &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
1.54 albertel 825: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 826: }
827:
828: sub decreasedepth {
1.19 albertel 829: my ($token) = @_;
1.17 albertel 830: $Apache::lonxml::depth--;
1.36 albertel 831: if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
832: $#Apache::lonxml::depthcounter--;
833: $Apache::lonxml::olddepth=$Apache::lonxml::depth+1;
834: }
1.43 albertel 835: if ( $Apache::lonxml::depth < -1) {
1.280 www 836: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1.43 albertel 837: $Apache::lonxml::depth='-1';
838: }
1.42 albertel 839: my $curdepth=join('_',@Apache::lonxml::depthcounter);
1.64 albertel 840: &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n");
1.54 albertel 841: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 842: }
1.19 albertel 843:
1.180 albertel 844: sub get_all_text_unbalanced {
1.190 albertel 845: #there is a copy of this in lonpublisher.pm
1.326 albertel 846: my($tag,$pars)= @_;
847: my $token;
848: my $result='';
849: $tag='<'.$tag.'>';
850: while ($token = $$pars[-1]->get_token) {
851: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
852: $result.=$token->[1];
853: } elsif ($token->[0] eq 'PI') {
854: $result.=$token->[2];
855: } elsif ($token->[0] eq 'S') {
856: $result.=$token->[4];
857: } elsif ($token->[0] eq 'E') {
858: $result.=$token->[2];
859: }
860: if ($result =~ /\Q$tag\E/is) {
861: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
862: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
863: #&Apache::lonxml::debug('Result is :'.$1);
864: $redo=$tag.$redo;
865: &Apache::lonxml::newparser($pars,\$redo);
866: last;
867: }
868: }
869: return $result
1.204 albertel 870: }
871:
872: sub increment_counter {
1.247 albertel 873: my ($increment) = @_;
1.289 sakharuk 874: if (defined($increment) && $increment gt 0) {
875: $Apache::lonxml::counter+=$increment;
876: } else {
877: $Apache::lonxml::counter++;
1.247 albertel 878: }
1.289 sakharuk 879: $Apache::lonxml::counter_changed=1;
1.204 albertel 880: }
881:
882: sub init_counter {
883: if (defined($ENV{'form.counter'})) {
884: $Apache::lonxml::counter=$ENV{'form.counter'};
1.247 albertel 885: $Apache::lonxml::counter_changed=0;
1.237 sakharuk 886: } else {
1.204 albertel 887: $Apache::lonxml::counter=1;
1.247 albertel 888: $Apache::lonxml::counter_changed=1;
1.204 albertel 889: }
890: }
891:
892: sub store_counter {
893: &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
894: return '';
1.180 albertel 895: }
896:
1.19 albertel 897: sub get_all_text {
1.270 albertel 898: my($tag,$pars,$style)= @_;
899: my $gotfullstack=1;
900: if (ref($pars) ne 'ARRAY') {
901: $gotfullstack=0;
902: $pars=[$pars];
903: }
904: if (ref($style) ne 'HASH') {
905: $style={};
906: }
907: my $depth=0;
908: my $token;
909: my $result='';
910: if ( $tag =~ m:^/: ) {
911: my $tag=substr($tag,1);
912: #&Apache::lonxml::debug("have:$tag:");
913: my $top_empty=0;
914: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
915: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
916: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
917: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
918: $result.=$token->[1];
919: } elsif ($token->[0] eq 'PI') {
920: $result.=$token->[2];
921: } elsif ($token->[0] eq 'S') {
1.316 albertel 922: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
923: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
924: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 925: $result.=$token->[4];
926: } elsif ($token->[0] eq 'E') {
1.316 albertel 927: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1.270 albertel 928: #skip sending back the last end tag
1.283 albertel 929: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1.270 albertel 930: my $string=
931: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
932: $$style{'/'.$token->[1]}.
933: $token->[2].
934: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
935: &Apache::lonxml::newparser($pars,\$string);
936: #&Apache::lonxml::debug("reParsing $string");
937: next;
938: }
939: if ($depth > -1) {
940: $result.=$token->[2];
941: } else {
942: $$pars[-1]->unget_token($token);
943: }
944: }
945: }
946: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
947: if (($depth >=0) && ($#$pars > 0) ) {
948: pop(@$pars);
949: pop(@Apache::lonxml::pwd);
950: }
951: }
952: if ($top_empty && $depth >= 0) {
953: #never found the end tag ran out of text, throw error send back blank
954: &error('Never found end tag for <'.$tag.
955: '> current string <pre>'.
1.314 albertel 956: &HTML::Entities::encode($result,'<>&"').
1.270 albertel 957: '</pre>');
958: if ($gotfullstack) {
959: my $newstring='</'.$tag.'>'.$result;
960: &Apache::lonxml::newparser($pars,\$newstring);
961: }
962: $result='';
963: }
964: } else {
965: while ($#$pars > -1) {
966: while ($token = $$pars[-1]->get_token) {
967: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
968: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
969: ($token->[0] eq 'D')) {
970: $result.=$token->[1];
971: } elsif ($token->[0] eq 'PI') {
972: $result.=$token->[2];
973: } elsif ($token->[0] eq 'S') {
1.316 albertel 974: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1.270 albertel 975: $$pars[-1]->unget_token($token); last;
976: } else {
977: $result.=$token->[4];
978: }
1.316 albertel 979: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
980: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 981: } elsif ($token->[0] eq 'E') {
982: $result.=$token->[2];
983: }
984: }
985: if (($#$pars > 0) ) {
986: pop(@$pars);
987: pop(@Apache::lonxml::pwd);
988: } else { last; }
989: }
990: }
991: #&Apache::lonxml::debug("Exit:$result:");
992: return $result
1.19 albertel 993: }
994:
1.23 albertel 995: sub newparser {
996: my ($parser,$contentref,$dir) = @_;
1.167 albertel 997: push (@$parser,HTML::LCParser->new($contentref));
1.56 albertel 998: $$parser['-1']->xml_mode('1');
1.23 albertel 999: if ( $dir eq '' ) {
1000: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1001: } else {
1002: push (@Apache::lonxml::pwd, $dir);
1003: }
1004: }
1.1 sakharuk 1005:
1.8 albertel 1006: sub parstring {
1007: my ($token) = @_;
1008: my $temp='';
1.142 albertel 1009: foreach (@{$token->[3]}) {
1.35 www 1010: unless ($_=~/\W/) {
1.42 albertel 1011: my $val=$token->[2]->{$_};
1.231 albertel 1012: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1.51 albertel 1013: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1.267 sakharuk 1014: $temp .= "my \$$_=\"$val\";";
1.20 albertel 1015: }
1.142 albertel 1016: }
1.8 albertel 1017: return $temp;
1018: }
1.22 albertel 1019:
1.34 www 1020: sub writeallows {
1.126 www 1021: unless ($#extlinks>=0) { return; }
1.34 www 1022: my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
1.111 www 1023: if ($ENV{'httpref.'.$thisurl}) {
1024: $thisurl=$ENV{'httpref.'.$thisurl};
1025: }
1.34 www 1026: my $thisdir=$thisurl;
1027: $thisdir=~s/\/[^\/]+$//;
1028: my %httpref=();
1.142 albertel 1029: foreach (@extlinks) {
1.34 www 1030: $httpref{'httpref.'.
1.125 www 1031: &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl;
1.142 albertel 1032: }
1.126 www 1033: @extlinks=();
1.34 www 1034: &Apache::lonnet::appenv(%httpref);
1035: }
1036:
1.281 albertel 1037: sub register_ssi {
1038: my ($url,%form)=@_;
1039: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1040: return '';
1041: }
1042:
1043: sub do_registered_ssi {
1044: foreach my $info (@Apache::lonxml::ssi_info) {
1045: my %form=%{ $info->{'form'}};
1046: my $url=$info->{'url'};
1047: &Apache::lonnet::ssi($url,%form);
1048: }
1049: }
1.66 www 1050: #
1051: # Afterburner handles anchors, highlights and links
1052: #
1053: sub afterburn {
1054: my $result=shift;
1.154 albertel 1055: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1056: ['highlight','anchor','link']);
1.66 www 1057: if ($ENV{'form.highlight'}) {
1.142 albertel 1058: foreach (split(/\,/,$ENV{'form.highlight'})) {
1.66 www 1059: my $anchorname=$_;
1060: my $matchthis=$anchorname;
1061: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1062: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1063: }
1.66 www 1064: }
1065: if ($ENV{'form.link'}) {
1.142 albertel 1066: foreach (split(/\,/,$ENV{'form.link'})) {
1.66 www 1067: my ($anchorname,$linkurl)=split(/\>/,$_);
1068: my $matchthis=$anchorname;
1069: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1070: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1071: }
1.66 www 1072: }
1073: if ($ENV{'form.anchor'}) {
1074: my $anchorname=$ENV{'form.anchor'};
1075: my $matchthis=$anchorname;
1076: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1077: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1.66 www 1078: $result.=(<<"ENDSCRIPT");
1.226 albertel 1079: <script type="text/javascript">
1.66 www 1080: document.location.hash='$anchorname';
1081: </script>
1082: ENDSCRIPT
1083: }
1084: return $result;
1085: }
1086:
1.79 www 1087: sub storefile {
1088: my ($file,$contents)=@_;
1.290 albertel 1089: &Apache::lonnet::correct_line_ends(\$contents);
1.79 www 1090: if (my $fh=Apache::File->new('>'.$file)) {
1091: print $fh $contents;
1092: $fh->close();
1.271 www 1093: return 1;
1.147 albertel 1094: } else {
1.271 www 1095: &warning("Unable to save file $file");
1096: return 0;
1.79 www 1097: }
1098: }
1099:
1.151 albertel 1100: sub createnewhtml {
1.321 www 1101: my $title=&mt('Title of document goes here');
1102: my $body=&mt('Body of document goes here');
1103: my $filecontents=(<<SIMPLECONTENT);
1104: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml/11/DTD/xhtml11.dtd">
1.78 www 1105: <html>
1106: <head>
1.321 www 1107: <title>$title</title>
1.78 www 1108: </head>
1109: <body bgcolor="#FFFFFF">
1.321 www 1110: $body
1.78 www 1111: </body>
1112: </html>
1113: SIMPLECONTENT
1.321 www 1114: return $filecontents;
1.151 albertel 1115: }
1116:
1.274 albertel 1117: sub createnewsty {
1118: my $filecontents=(<<SIMPLECONTENT);
1119: <definetag name="">
1120: <render>
1121: <web></web>
1122: <tex></tex>
1123: </render>
1124: </definetag>
1125: SIMPLECONTENT
1126: return $filecontents;
1127: }
1128:
1.147 albertel 1129:
1.151 albertel 1130: sub inserteditinfo {
1.274 albertel 1131: my ($result,$filecontents,$filetype)=@_;
1.314 albertel 1132: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1.147 albertel 1133: # my $editheader='<a href="#editsection">Edit below</a><hr />';
1.274 albertel 1134: my $xml_help = '';
1.321 www 1135: my $initialize='';
1.274 albertel 1136: if ($filetype eq 'html') {
1.323 www 1137: my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
1.333 www 1138: $initialize=&Apache::lonhtmlcommon::htmlareaheaders().
1139: &Apache::lonhtmlcommon::spellheader().(<<FULLPAGE);
1.321 www 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
1.333 www 1169: $buttons.=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
1.78 www 1170: my $editfooter=(<<ENDFOOTER);
1.321 www 1171: $initialize
1.78 www 1172: <hr />
1173: <a name="editsection" />
1.333 www 1174: <form method="post" name="xmledit">
1.240 albertel 1175: $xml_help
1.280 www 1176: <input type="hidden" name="editmode" value="$lt{'ed'}" />
1.170 www 1177: $buttons<br />
1.321 www 1178: <textarea cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
1.170 www 1179: <br />$buttons
1.78 www 1180: <br />
1181: </form>
1.254 albertel 1182: $titledisplay
1.321 www 1183: </body>
1.78 www 1184: ENDFOOTER
1.147 albertel 1185: # $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
1.78 www 1186: $result=~s/(\<\/body\>)/$editfooter/is;
1187: return $result;
1188: }
1189:
1.152 albertel 1190: sub get_target {
1191: my $viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
1192: if ( $ENV{'request.state'} eq 'published') {
1193: if ( defined($ENV{'form.grade_target'})
1194: && ($viewgrades == 'F' )) {
1195: return ($ENV{'form.grade_target'});
1.153 albertel 1196: } elsif (defined($ENV{'form.grade_target'})) {
1197: if (($ENV{'form.grade_target'} eq 'web') ||
1198: ($ENV{'form.grade_target'} eq 'tex') ) {
1199: return $ENV{'form.grade_target'}
1200: } else {
1201: return 'web';
1202: }
1.152 albertel 1203: } else {
1204: return 'web';
1205: }
1206: } elsif ($ENV{'request.state'} eq 'construct') {
1207: if ( defined($ENV{'form.grade_target'})) {
1208: return ($ENV{'form.grade_target'});
1209: } else {
1210: return 'web';
1211: }
1212: } else {
1213: return 'web';
1214: }
1215: }
1216:
1.24 sakharuk 1217: sub handler {
1.255 sakharuk 1218: my $request=shift;
1219:
1220: my $target=&get_target();
1221:
1.258 albertel 1222: $Apache::lonxml::debug=$ENV{'user.debug'};
1.255 sakharuk 1223:
1224: if ($ENV{'browser.mathml'}) {
1.280 www 1225: &Apache::loncommon::content_type($request,'text/xml');
1.255 sakharuk 1226: } else {
1.280 www 1227: &Apache::loncommon::content_type($request,'text/html');
1.255 sakharuk 1228: }
1229: &Apache::loncommon::no_cache($request);
1230: $request->send_http_header;
1231:
1232: return OK if $request->header_only;
1.68 www 1233:
1234:
1.255 sakharuk 1235: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.274 albertel 1236: my $filetype;
1237: if ($file =~ /\.sty$/) {
1238: $filetype='sty';
1239: } else {
1240: $filetype='html';
1241: }
1.78 www 1242: #
1243: # Edit action? Save file.
1244: #
1.255 sakharuk 1245: unless ($ENV{'request.state'} eq 'published') {
1246: if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
1.271 www 1247: if (&storefile($file,$ENV{'form.filecont'})) {
1.309 albertel 1248: &Apache::lonxml::info("<font COLOR=\"#0000FF\">".
1249: &mt('Updated').": ".
1250: &Apache::lonlocal::locallocaltime(time).
1251: " </font>");
1.271 www 1252: }
1.255 sakharuk 1253: }
1254: }
1255: my %mystyle;
1256: my $result = '';
1257: my $filecontents=&Apache::lonnet::getfile($file);
1258: if ($filecontents eq -1) {
1.284 www 1259: my $bodytag=&Apache::loncommon::bodytag('File Error');
1260: my $fnf=&mt('File not found');
1.255 sakharuk 1261: $result=(<<ENDNOTFOUND);
1.78 www 1262: <html>
1263: <head>
1.284 www 1264: <title>$fnf</title>
1.78 www 1265: </head>
1.284 www 1266: $bodytag
1267: <b>$fnf: $file</b>
1.78 www 1268: </body>
1269: </html>
1270: ENDNOTFOUND
1.50 albertel 1271: $filecontents='';
1.255 sakharuk 1272: if ($ENV{'request.state'} ne 'published') {
1.274 albertel 1273: if ($filetype eq 'sty') {
1274: $filecontents=&createnewsty();
1275: } else {
1276: $filecontents=&createnewhtml();
1277: }
1.255 sakharuk 1278: $ENV{'form.editmode'}='Edit'; #force edit mode
1279: }
1280: } else {
1281: unless ($ENV{'request.state'} eq 'published') {
1282: if ($ENV{'form.attemptclean'}) {
1283: $filecontents=&htmlclean($filecontents,1);
1284: }
1.264 www 1285: #
1286: # we are in construction space, see if edit mode forced
1287: &Apache::loncommon::get_unprocessed_cgi
1288: ($ENV{'QUERY_STRING'},['editmode']);
1.255 sakharuk 1289: }
1290: if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
1291: $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
1292: '',%mystyle);
1293: }
1.147 albertel 1294: }
1.255 sakharuk 1295:
1.78 www 1296: #
1297: # Edit action? Insert editing commands
1298: #
1.255 sakharuk 1299: unless ($ENV{'request.state'} eq 'published') {
1300: if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
1301: my $displayfile=$request->uri;
1302: $displayfile=~s/^\/[^\/]*//;
1.309 albertel 1303: $result='<html><body bgcolor="#FFFFFF">'.
1304: &Apache::lonxml::message_location().'<h3>'.
1305: $displayfile.
1.255 sakharuk 1306: '</h3></body></html>';
1.274 albertel 1307: $result=&inserteditinfo($result,$filecontents,$filetype);
1.255 sakharuk 1308: }
1.147 albertel 1309: }
1.274 albertel 1310: if ($filetype eq 'html') { writeallows($request->uri); }
1311:
1.255 sakharuk 1312:
1.309 albertel 1313: &Apache::lonxml::add_messages(\$result);
1.255 sakharuk 1314: $request->print($result);
1315:
1316: return OK;
1.253 albertel 1317: }
1318:
1319: sub display_title {
1320: my $result;
1321: if ($ENV{'request.state'} eq 'construct') {
1322: my $title=&Apache::lonnet::gettitle();
1323: if (!defined($title) || $title eq '') {
1324: $title = $ENV{'request.filename'};
1325: $title = substr($title, rindex($title, '/') + 1);
1326: }
1327: $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA Construction Space';</script>";
1328: }
1329: return $result;
1.24 sakharuk 1330: }
1.147 albertel 1331:
1.22 albertel 1332: sub debug {
1.298 albertel 1333: if ($Apache::lonxml::debug eq "1") {
1334: $|=1;
1.300 albertel 1335: my $request=$Apache::lonxml::request;
1336: if (!$request) { $request=Apache->request; }
1.314 albertel 1337: $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
1.327 sakharuk 1338: # &Apache::lonnet::logthis($_[0]);
1.298 albertel 1339: }
1.22 albertel 1340: }
1.49 albertel 1341:
1.22 albertel 1342: sub error {
1.336 ! albertel 1343: $errorcount++;
! 1344: if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
! 1345: # If printing in construction space, put the error inside <pre></pre>
! 1346: push(@Apache::lonxml::error_messages,
! 1347: $Apache::lonxml::warnings_error_header.
! 1348: "<b>ERROR:</b>".join("<br />\n",@_)."<br />\n");
! 1349: $Apache::lonxml::warnings_error_header='';
! 1350: } else {
! 1351: my $errormsg;
! 1352: my ($symb)=&Apache::lonnet::symbread();
! 1353: if ( !$symb ) {
! 1354: #public or browsers
! 1355: $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
! 1356: }
! 1357: #notify author
! 1358: &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
! 1359: #notify course
! 1360: if ( $symb && $ENV{'request.course.id'} ) {
! 1361: my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
! 1362: my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
! 1363: my @userlist;
! 1364: foreach (keys %users) {
! 1365: my ($user,$domain) = split(/:/, $_);
! 1366: push(@userlist,"$user\@$domain");
! 1367: &Apache::lonmsg::user_normal_msg($user,$domain,
! 1368: "Error [$declutter]",join('<br />',@_));
! 1369: }
! 1370: if ($ENV{'request.role.adv'}) {
! 1371: $errormsg=&mt("An error occured while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
! 1372: } else {
! 1373: $errormsg=&mt("An error occured while processing this resource. The instructor has been notified.");
! 1374: }
! 1375: }
! 1376: push(@Apache::lonxml::error_messages,"<b>$errormsg</b> <br />");
1.52 albertel 1377: }
1.22 albertel 1378: }
1.49 albertel 1379:
1.22 albertel 1380: sub warning {
1.295 albertel 1381: $warningcount++;
1.261 albertel 1382:
1.295 albertel 1383: if ($ENV{'form.grade_target'} ne 'tex') {
1384: if ($ENV{'request.state'} eq 'construct' || $Apache::lonxml::debug) {
1.300 albertel 1385: my $request=$Apache::lonxml::request;
1386: if (!$request) { $request=Apache->request; }
1.309 albertel 1387: push(@Apache::lonxml::warning_messages,
1388: $Apache::lonxml::warnings_error_header.
1389: "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n");
1.295 albertel 1390: $Apache::lonxml::warnings_error_header='';
1391: }
1392: }
1.309 albertel 1393: }
1394:
1395: sub info {
1396: if ($ENV{'form.grade_target'} ne 'tex'
1397: && $ENV{'request.state'} eq 'construct') {
1398: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
1399: }
1400: }
1401:
1402: sub message_location {
1403: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
1404: }
1405:
1406: sub add_messages {
1407: my ($msg)=@_;
1408: my $result=join(' ',
1409: @Apache::lonxml::info_messages,
1410: @Apache::lonxml::error_messages,
1411: @Apache::lonxml::warning_messages);
1412: undef(@Apache::lonxml::info_messages);
1413: undef(@Apache::lonxml::error_messages);
1414: undef(@Apache::lonxml::warning_messages);
1415: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
1416: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
1.83 albertel 1417: }
1418:
1419: sub get_param {
1.213 albertel 1420: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1421: if ( ! $context ) { $context = -1; }
1422: my $args ='';
1423: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1424: if ( ! $Apache::lonxml::usestyle ) {
1425: $args=$Apache::lonxml::style_values.$args;
1426: }
1.213 albertel 1427: if ( ! $args ) { return undef; }
1428: if ( $case_insensitive ) {
1429: if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
1430: return &Apache::run::run("{$args;".'return $'.$param.'}',
1431: $safeeval); #'
1432: } else {
1433: return undef;
1434: }
1435: } else {
1436: if ( $args =~ /my \$\Q$param\E=\"/ ) {
1437: return &Apache::run::run("{$args;".'return $'.$param.'}',
1438: $safeeval); #'
1439: } else {
1440: return undef;
1441: }
1442: }
1.22 albertel 1443: }
1444:
1.132 albertel 1445: sub get_param_var {
1.213 albertel 1446: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 1447: if ( ! $context ) { $context = -1; }
1448: my $args ='';
1449: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1450: if ( ! $Apache::lonxml::usestyle ) {
1451: $args=$Apache::lonxml::style_values.$args;
1452: }
1.230 albertel 1453: &Apache::lonxml::debug("Args are $args param is $param");
1.213 albertel 1454: if ($case_insensitive) {
1455: if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
1456: return undef;
1457: }
1458: } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; }
1.132 albertel 1459: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.230 albertel 1460: &Apache::lonxml::debug("first run is $value");
1461: if ($value =~ /^[\$\@\%]\w+$/) {
1462: &Apache::lonxml::debug("doing second");
1463: my @result=&Apache::run::run("return $value",$safeeval,1);
1464: if (!defined($result[0])) {
1465: return $value
1466: } else {
1467: if (wantarray) { return @result; } else { return $result[0]; }
1468: }
1.132 albertel 1469: } else {
1470: return $value;
1471: }
1472: }
1473:
1.74 albertel 1474: sub register_insert {
1.75 albertel 1475: my @data = split /\n/, &Apache::lonnet::getfile('/home/httpd/lonTabs/insertlist.tab');
1.74 albertel 1476: my $i;
1.76 albertel 1477: my $tagnum=0;
1.74 albertel 1478: my @order;
1479: for ($i=0;$i < $#data; $i++) {
1480: my $line = $data[$i];
1481: if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; }
1482: if ( $line =~ /TABLE/ ) { last; }
1.268 bowersj2 1483: my ($tag,$descrip,$color,$function,$show,$helpfile,$helpdesc) = split(/,/, $line);
1.135 albertel 1484: if ($tag) {
1485: $insertlist{"$tagnum.tag"} = $tag;
1486: $insertlist{"$tagnum.description"} = $descrip;
1487: $insertlist{"$tagnum.color"} = $color;
1488: $insertlist{"$tagnum.function"} = $function;
1489: if (!defined($show)) { $show='yes'; }
1490: $insertlist{"$tagnum.show"}= $show;
1.268 bowersj2 1491: $insertlist{"$tagnum.helpfile"} = $helpfile;
1492: $insertlist{"$tagnum.helpdesc"} = $helpdesc;
1.135 albertel 1493: $insertlist{"$tag.num"}=$tagnum;
1494: $tagnum++;
1495: }
1.74 albertel 1496: }
1.76 albertel 1497: $i++; #skipping TABLE line
1498: $tagnum = 0;
1.74 albertel 1499: for (;$i < $#data;$i++) {
1500: my $line = $data[$i];
1.76 albertel 1501: my ($mnemonic,@which) = split(/ +/,$line);
1502: my $tag = $insertlist{"$tagnum.tag"};
1.144 matthew 1503: for (my $j=0;$j <=$#which;$j++) {
1.74 albertel 1504: if ( $which[$j] eq 'Y' ) {
1.76 albertel 1505: if ($insertlist{"$j.show"} ne 'no') {
1506: push(@{ $insertlist{"$tag.which"} },$j);
1507: }
1.74 albertel 1508: }
1509: }
1.76 albertel 1510: $tagnum++;
1.74 albertel 1511: }
1512: }
1.98 albertel 1513:
1514: sub description {
1515: my ($token)=@_;
1.138 albertel 1516: my $tagnum;
1517: my $tag=$token->[1];
1518: foreach my $namespace (reverse @Apache::lonxml::namespace) {
1519: my $testtag=$namespace.'::'.$tag;
1520: $tagnum=$insertlist{"$testtag.num"};
1521: if (defined($tagnum)) { last; }
1522: }
1523: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
1524: return $insertlist{$tagnum.'.description'};
1.268 bowersj2 1525: }
1526:
1527: # Returns a list containing the help file, and the description
1528: sub helpinfo {
1529: my ($token)=@_;
1530: my $tagnum;
1531: my $tag=$token->[1];
1532: foreach my $namespace (reverse @Apache::lonxml::namespace) {
1533: my $testtag=$namespace.'::'.$tag;
1534: $tagnum=$insertlist{"$testtag.num"};
1535: if (defined($tagnum)) { last; }
1536: }
1537: if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
1538: return ($insertlist{$tagnum.'.helpfile'}, $insertlist{$tagnum.'.helpdesc'});
1.98 albertel 1539: }
1.123 albertel 1540:
1541: # ----------------------------------------------------------------- whichuser
1542: # returns a list of $symb, $courseid, $domain, $name that is correct for
1543: # calls to lonnet functions for this setup.
1544: # - looks for form.grade_ parameters
1545: sub whichuser {
1.262 matthew 1546: my ($passedsymb)=@_;
1.245 albertel 1547: my ($symb,$courseid,$domain,$name,$publicuser);
1.123 albertel 1548: if (defined($ENV{'form.grade_symb'})) {
1549: my $tmp_courseid=$ENV{'form.grade_courseid'};
1.269 albertel 1550: my $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid);
1.123 albertel 1551: if ($allowed) {
1552: $symb=$ENV{'form.grade_symb'};
1553: $courseid=$ENV{'form.grade_courseid'};
1554: $domain=$ENV{'form.grade_domain'};
1555: $name=$ENV{'form.grade_username'};
1556: }
1.134 albertel 1557: } else {
1.262 matthew 1558: if (!$passedsymb) {
1559: $symb=&Apache::lonnet::symbread();
1560: } else {
1561: $symb=$passedsymb;
1562: }
1.244 albertel 1563: $courseid=$ENV{'request.course.id'};
1564: $domain=$ENV{'user.domain'};
1565: $name=$ENV{'user.name'};
1566: if ($name eq 'public' && $domain eq 'public') {
1567: if (!defined($ENV{'form.username'})) {
1568: $ENV{'form.username'}.=time.rand(10000000);
1569: }
1570: $name.=$ENV{'form.username'};
1571: }
1.123 albertel 1572: }
1.245 albertel 1573: return ($symb,$courseid,$domain,$name,$publicuser);
1.123 albertel 1574: }
1575:
1.1 sakharuk 1576: 1;
1577: __END__
1.68 www 1578:
1579:
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