Annotation of loncom/xml/lonxml.pm, revision 1.472
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.472 ! www 4: # $Id: lonxml.pm,v 1.471 2008/02/15 12:59:50 bisitz 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
1.410 albertel 43: qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount);
1.1 sakharuk 44: use strict;
1.444 albertel 45: use LONCAPA;
1.167 albertel 46: use HTML::LCParser();
1.161 albertel 47: use HTML::TreeBuilder();
48: use HTML::Entities();
49: use Safe();
50: use Safe::Hole();
51: use Math::Cephes();
52: use Math::Random();
53: use Opcode();
1.271 www 54: use POSIX qw(strftime);
1.339 albertel 55: use Time::HiRes qw( gettimeofday tv_interval );
1.393 albertel 56: use Symbol();
1.266 bowersj2 57:
1.72 albertel 58: sub register {
1.141 albertel 59: my ($space,@taglist) = @_;
60: foreach my $temptag (@taglist) {
61: push(@{ $Apache::lonxml::alltags{$temptag} },$space);
1.72 albertel 62: }
63: }
64:
1.141 albertel 65: sub deregister {
66: my ($space,@taglist) = @_;
67: foreach my $temptag (@taglist) {
68: my $tempspace = $Apache::lonxml::alltags{$temptag}[-1];
69: if ($tempspace eq $space) {
70: pop(@{ $Apache::lonxml::alltags{$temptag} });
71: }
72: }
1.142 albertel 73: #&printalltags();
1.141 albertel 74: }
75:
1.46 www 76: use Apache::Constants qw(:common);
1.161 albertel 77: use Apache::lontexconvert();
78: use Apache::style();
79: use Apache::run();
80: use Apache::londefdef();
81: use Apache::scripttag();
1.285 www 82: use Apache::languagetags();
1.161 albertel 83: use Apache::edit();
1.266 bowersj2 84: use Apache::inputtags();
85: use Apache::outputtags();
1.372 albertel 86: use Apache::lonnet;
1.161 albertel 87: use Apache::File();
88: use Apache::loncommon();
1.198 www 89: use Apache::lonfeedback();
1.200 www 90: use Apache::lonmsg();
1.217 matthew 91: use Apache::loncacc();
1.431 www 92: use Apache::lonmaxima();
1.280 www 93: use Apache::lonlocal;
1.79 www 94:
1.462 foxr 95: #==================================== Main subroutine: xmlparse
96:
1.72 albertel 97: #debugging control, to turn on debugging modify the correct handler
1.462 foxr 98:
1.72 albertel 99: $Apache::lonxml::debug=0;
1.206 albertel 100:
101: # keeps count of the number of warnings and errors generated in a parse
102: $warningcount=0;
103: $errorcount=0;
1.72 albertel 104:
105: #path to the directory containing the file currently being processed
106: @pwd=();
107:
108: #these two are used for capturing a subset of the output for later processing,
109: #don't touch them directly use &startredirection and &endredirection
110: @outputstack = ();
111: $redirection = 0;
112:
113: #controls wheter the <import> tag actually does
114: $import = 1;
115: @extlinks=();
116:
117: # meta mode is a bit weird only some output is to be turned off
118: #<output> tag turns metamode off (defined in londefdef.pm)
119: $metamode = 0;
120:
121: # turns on and of run::evaluate actually derefencing var refs
122: $evaluate = 1;
1.7 albertel 123:
1.74 albertel 124: # data structure for eidt mode, determines what tags can go into what other tags
125: %insertlist=();
1.68 www 126:
1.99 albertel 127: # stores the list of active tag namespaces
1.76 albertel 128: @namespace=();
129:
1.448 albertel 130: # stores all Scrit Vars displays for later showing
131: my @script_var_displays=();
132:
1.172 albertel 133: # a pointer the the Apache request object
134: $Apache::lonxml::request='';
135:
1.216 sakharuk 136: # a problem number counter, and check on ether it is used
1.237 sakharuk 137: $Apache::lonxml::counter=1;
1.204 albertel 138: $Apache::lonxml::counter_changed=0;
139:
1.462 foxr 140: # Part counter hash. In analysis mode, the
141: # problems can use this to record which parts increment the counter
142: # by how much. The counter subs will maintain this hash via
143: # their optional part parameters. Note that the assumption is that
144: # analysis is done in one request and therefore it is not necessary to
145: # save this information request-to-request.
146:
147:
148: %Apache::lonxml::counters_per_part = ();
149:
1.212 albertel 150: #internal check on whether to look at style defs
151: $Apache::lonxml::usestyle=1;
1.260 albertel 152:
153: #locations used to store the parameter string for style substitutions
154: $Apache::lonxml::style_values='';
155: $Apache::lonxml::style_end_values='';
1.212 albertel 156:
1.281 albertel 157: #array of ssi calls that need to occur after we are done parsing
158: @Apache::lonxml::ssi_info=();
159:
1.282 albertel 160: #should we do the postag variable interpolation
161: $Apache::lonxml::post_evaluate=1;
162:
1.295 albertel 163: #a header message to emit in the case of any generated warning or errors
164: $Apache::lonxml::warnings_error_header='';
165:
1.396 foxr 166: # Control whether or not LaTeX symbols should be substituted for their
167: # \ style equivalents...this may be turned off e.g. in an verbatim
168: # environment.
169:
170: $Apache::lonxml::substitute_LaTeX_symbols = 1; # Starts out on.
171:
172: sub enable_LaTeX_substitutions {
173: $Apache::lonxml::substitute_LaTeX_symbols = 1;
174: }
175: sub disable_LaTeX_substitutions {
176: $Apache::lonxml::substitute_LaTeX_symbols = 0;
177: }
178:
1.68 www 179: sub xmlend {
1.335 sakharuk 180: my ($target,$parser)=@_;
1.278 www 181: my $mode='xml';
182: my $status='OPEN';
1.368 albertel 183: if ($Apache::lonhomework::parsing_a_problem ||
184: $Apache::lonhomework::parsing_a_task ) {
1.278 www 185: $mode='problem';
186: $status=$Apache::inputtags::status[-1];
187: }
1.362 matthew 188: my $discussion;
1.379 albertel 189: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
190: ['LONCAPA_INTERNAL_no_discussion']);
1.372 albertel 191: if (! exists($env{'form.LONCAPA_INTERNAL_no_discussion'}) ||
192: $env{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true') {
1.362 matthew 193: $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
194: }
1.334 sakharuk 195: if ($target eq 'tex') {
1.335 sakharuk 196: $discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
1.334 sakharuk 197: &Apache::lonxml::newparser($parser,\$discussion,'');
198: return '';
199: }
1.405 albertel 200:
1.407 albertel 201: return $discussion;
1.119 www 202: }
203:
204: sub tokeninputfield {
1.120 www 205: my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
206: $defhost=~tr/a-z/A-Z/;
1.119 www 207: return (<<ENDINPUTFIELD)
1.226 albertel 208: <script type="text/javascript">
1.120 www 209: function updatetoken() {
210: var comp=new Array;
211: var barcode=unescape(document.tokeninput.barcode.value);
212: comp=barcode.split('*');
213: if (typeof(comp[0])!="undefined") {
214: document.tokeninput.codeone.value=comp[0];
215: }
216: if (typeof(comp[1])!="undefined") {
217: document.tokeninput.codetwo.value=comp[1];
218: }
219: if (typeof(comp[2])!="undefined") {
220: comp[2]=comp[2].toUpperCase();
221: document.tokeninput.codethree.value=comp[2];
222: }
223: document.tokeninput.barcode.value='';
224: }
225: </script>
226: <form method="post" name="tokeninput">
1.119 www 227: <table border="2" bgcolor="#FFFFBB">
228: <tr><th>DocID Checkin</th></tr>
229: <tr><td>
230: <table>
231: <tr>
232: <td>Scan in Barcode</td>
1.120 www 233: <td><input type="text" size="22" name="barcode"
234: onChange="updatetoken()"/></td>
1.119 www 235: </tr>
236: <tr><td><i>or</i> Type in DocID</td>
237: <td>
238: <input type="text" size="5" name="codeone" />
1.120 www 239: <b><font size="+2">*</font></b>
1.119 www 240: <input type="text" size="5" name="codetwo" />
1.120 www 241: <b><font size="+2">*</font></b>
242: <input type="text" size="10" name="codethree" value="$defhost"
243: onChange="this.value=this.value.toUpperCase()" />
1.119 www 244: </td></tr>
245: </table>
246: </td></tr>
247: <tr><td><input type="submit" value="Check in DocID" /></td></tr>
248: </table>
249: </form>
250: ENDINPUTFIELD
1.112 www 251: }
252:
1.116 www 253: sub maketoken {
1.118 www 254: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1.112 www 255: unless ($symb) {
256: $symb=&Apache::lonnet::symbread();
257: }
258: unless ($tuname) {
1.372 albertel 259: $tuname=$env{'user.name'};
260: $tudom=$env{'user.domain'};
261: $tcrsid=$env{'request.course.id'};
1.112 www 262: }
1.116 www 263:
1.118 www 264: return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
265: }
266:
267: sub printtokenheader {
1.133 albertel 268: my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
1.116 www 269: unless ($token) { return ''; }
1.118 www 270:
1.423 albertel 271: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.133 albertel 272: unless ($tsymb) {
273: $tsymb=$symb;
1.118 www 274: }
275: unless ($tuname) {
1.133 albertel 276: $tuname=$name;
277: $tudom=$domain;
278: $tcrsid=$courseid;
1.118 www 279: }
1.114 www 280:
1.390 albertel 281: my $plainname=&Apache::loncommon::plainname($tuname,$tudom);
1.114 www 282:
1.112 www 283: if ($target eq 'web') {
1.145 www 284: my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
1.115 www 285: return
1.221 albertel 286: '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
1.284 www 287: &mt('Checked out for').' '.$plainname.
288: '<br />'.&mt('User').': '.$tuname.' at '.$tudom.
289: '<br />'.&mt('ID').': '.$idhash{$tuname}.
290: '<br />'.&mt('CourseID').': '.$tcrsid.
1.372 albertel 291: '<br />'.&mt('Course').': '.$env{'course.'.$tcrsid.'.description'}.
1.284 www 292: '<br />'.&mt('DocID').': '.$token.
293: '<br />'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'<hr />';
1.112 www 294: } else {
1.121 albertel 295: return $token;
1.112 www 296: }
1.68 www 297: }
298:
1.48 albertel 299: sub printalltags {
300: my $temp;
301: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.141 albertel 302: &Apache::lonxml::debug("$temp -- ".
303: join(',',@{ $Apache::lonxml::alltags{$temp} }));
1.48 albertel 304: }
305: }
1.31 sakharuk 306:
1.3 sakharuk 307: sub xmlparse {
1.172 albertel 308: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 309:
1.172 albertel 310: &setup_globals($request,$target);
1.232 albertel 311: &Apache::inputtags::initialize_inputtags();
1.370 albertel 312: &Apache::bridgetask::initialize_bridgetask();
1.232 albertel 313: &Apache::outputtags::initialize_outputtags();
314: &Apache::edit::initialize_edit();
1.287 albertel 315: &Apache::londefdef::initialize_londefdef();
1.244 albertel 316:
1.178 www 317: #
318: # do we have a course style file?
319: #
320:
1.372 albertel 321: if ($env{'request.course.id'} && $env{'request.state'} ne 'construct') {
1.178 www 322: my $bodytext=
1.372 albertel 323: $env{'course.'.$env{'request.course.id'}.'.default_xml_style'};
1.178 www 324: if ($bodytext) {
1.337 albertel 325: foreach my $file (split(',',$bodytext)) {
326: my $location=&Apache::lonnet::filelocation('',$file);
327: my $styletext=&Apache::lonnet::getfile($location);
328: if ($styletext ne '-1') {
329: %style_for_target = (%style_for_target,
330: &Apache::style::styleparser($target,$styletext));
331: }
332: }
333: }
1.449 albertel 334: } elsif ($env{'construct.style'}
335: && ($env{'request.state'} eq 'construct')) {
1.372 albertel 336: my $location=&Apache::lonnet::filelocation('',$env{'construct.style'});
1.291 sakharuk 337: my $styletext=&Apache::lonnet::getfile($location);
1.449 albertel 338: if ($styletext ne '-1') {
339: %style_for_target = (%style_for_target,
340: &Apache::style::styleparser($target,$styletext));
341: }
1.178 www 342: }
1.255 sakharuk 343: #&printalltags();
1.16 albertel 344: my @pars = ();
1.372 albertel 345: my $pwd=$env{'request.filename'};
1.23 albertel 346: $pwd =~ s:/[^/]*$::;
347: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 348:
1.3 sakharuk 349: my $safeeval = new Safe;
1.40 albertel 350: my $safehole = new Safe::Hole;
1.82 ng 351: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 352: #-------------------- Redefinition of the target in the case of compound target
353:
354: ($target, my @tenta) = split('&&',$target);
355:
1.150 albertel 356: my @stack = ();
1.3 sakharuk 357: my @parstack = ();
1.358 albertel 358: &initdepth();
359: &init_alarm();
1.101 albertel 360: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
1.394 albertel 361: $safeeval,\%style_for_target,1);
1.255 sakharuk 362:
1.425 albertel 363: if (@stack) {
364: &warning("At end of file some tags were still left unclosed, ".
365: '<tt><'.join('></tt>, <tt><',reverse(@stack)).
366: '></tt>');
367: }
1.372 albertel 368: if ($env{'request.uri'}) {
369: &writeallows($env{'request.uri'});
1.125 www 370: }
1.281 albertel 371: &do_registered_ssi();
1.204 albertel 372: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.393 albertel 373:
374: &clean_safespace($safeeval);
375:
1.448 albertel 376: if (@script_var_displays) {
377: $finaloutput .= join('',@script_var_displays);
378: undef(@script_var_displays);
379: }
1.469 albertel 380: &init_state();
1.372 albertel 381: if ($env{'form.return_only_error_and_warning_counts'}) {
1.361 www 382: return "$errorcount:$warningcount";
383: }
1.3 sakharuk 384: return $finaloutput;
1.106 www 385: }
386:
1.191 albertel 387: sub latex_special_symbols {
1.272 albertel 388: my ($string,$where)=@_;
1.396 foxr 389: #
390: # If e.g. in verbatim mode, then don't substitute.
391: # but return original string.
392: #
393: if (!($Apache::lonxml::substitute_LaTeX_symbols)) {
394: return $string;
395: }
1.235 sakharuk 396: if ($where eq 'header') {
1.414 foxr 397: $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10.
1.311 albertel 398: $string =~ s/(\$|%|\{|\})/\\$1/g;
399: $string=&Apache::lonprintout::character_chart($string);
400: # any & or # leftover should be safe to just escape
401: $string=~s/([^\\])\&/$1\\\&/g;
402: $string=~s/([^\\])\#/$1\\\#/g;
1.415 foxr 403: $string =~ s/_/\\_/g; # _ -> \_
404: $string =~ s/\^/\\\^{}/g; # ^ -> \^{}
1.229 sakharuk 405: } else {
1.312 albertel 406: $string=~s/\\/\\ensuremath{\\backslash}/g;
1.367 albertel 407: $string=~s/\\\%|\%/\\\%/g;
408: $string=~s/\\{|{/\\{/g;
409: $string=~s/\\}|}/\\}/g;
1.378 albertel 410: $string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
1.367 albertel 411: $string=~s/\\\$|\$/\\\$/g;
412: $string=~s/\\\_|\_/\\\_/g;
1.313 albertel 413: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
1.310 sakharuk 414: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
1.311 albertel 415: $string=&Apache::lonprintout::character_chart($string);
416: # any & or # leftover should be safe to just escape
1.367 albertel 417: $string=~s/\\\&|\&/\\\&/g;
418: $string=~s/\\\#|\#/\\\#/g;
1.332 sakharuk 419: $string=~s/\|/\$\\mid\$/g;
1.310 sakharuk 420: #single { or } How to escape?
1.229 sakharuk 421: }
1.272 albertel 422: return $string;
1.188 sakharuk 423: }
424:
1.101 albertel 425: sub inner_xmlparse {
1.394 albertel 426: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target,$start)=@_;
1.101 albertel 427: my $finaloutput = '';
428: my $result;
429: my $token;
1.258 albertel 430: my $dontpop=0;
1.389 albertel 431: my $startredirection = $Apache::lonxml::redirection;
1.101 albertel 432: while ( $#$pars > -1 ) {
433: while ($token = $$pars['-1']->get_token) {
1.261 albertel 434: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
1.101 albertel 435: if ($metamode<1) {
1.190 albertel 436: my $text=$token->[1];
1.193 albertel 437: if ($token->[0] eq 'C' && $target eq 'tex') {
1.239 sakharuk 438: $text = '';
439: # $text = '%'.$text."\n";
1.182 sakharuk 440: }
1.190 albertel 441: $result.=$text;
1.101 albertel 442: }
1.261 albertel 443: } elsif (($token->[0] eq 'D')) {
444: if ($metamode<1 && $target eq 'web') {
445: my $text=$token->[1];
446: $result.=$text;
447: }
1.101 albertel 448: } elsif ($token->[0] eq 'PI') {
1.261 albertel 449: if ($metamode<1 && $target eq 'web') {
1.101 albertel 450: $result=$token->[2];
451: }
452: } elsif ($token->[0] eq 'S') {
1.140 albertel 453: # add tag to stack
1.101 albertel 454: push (@$stack,$token->[1]);
455: # add parameters list to another stack
456: push (@$parstack,&parstring($token));
1.140 albertel 457: &increasedepth($token);
1.212 albertel 458: if ($Apache::lonxml::usestyle &&
459: exists($$style_for_target{$token->[1]})) {
460: $Apache::lonxml::usestyle=0;
461: my $string=$$style_for_target{$token->[1]}.
462: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
463: &Apache::lonxml::newparser($pars,\$string);
1.257 albertel 464: $Apache::lonxml::style_values=$$parstack[-1];
1.259 albertel 465: $Apache::lonxml::style_end_values=$$parstack[-1];
1.101 albertel 466: } else {
467: $result = &callsub("start_$token->[1]", $target, $token, $stack,
468: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 469: }
1.101 albertel 470: } elsif ($token->[0] eq 'E') {
1.212 albertel 471: if ($Apache::lonxml::usestyle &&
472: exists($$style_for_target{'/'."$token->[1]"})) {
473: $Apache::lonxml::usestyle=0;
474: my $string=$$style_for_target{'/'.$token->[1]}.
1.258 albertel 475: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
1.212 albertel 476: &Apache::lonxml::newparser($pars,\$string);
1.259 albertel 477: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
478: $Apache::lonxml::style_end_values='';
1.258 albertel 479: $dontpop=1;
1.101 albertel 480: } else {
1.258 albertel 481: #clear out any tags that didn't end
482: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
483: my $lasttag=$$stack[-1];
1.317 albertel 484: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
1.258 albertel 485: &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
486: last;
487: } else {
488: &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file');
489: &end_tag($stack,$parstack,$token);
490: }
491: }
492: $result = &callsub("end_$token->[1]", $target, $token, $stack,
493: $parstack, $pars,$safeeval, $style_for_target);
1.101 albertel 494: }
495: } else {
496: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
497: }
498: #evaluate variable refs in result
1.282 albertel 499: if ($Apache::lonxml::post_evaluate &&$result ne "") {
1.257 albertel 500: my $extras;
501: if (!$Apache::lonxml::usestyle) {
502: $extras=$Apache::lonxml::style_values;
503: }
1.101 albertel 504: if ( $#$parstack > -1 ) {
1.257 albertel 505: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
1.101 albertel 506: } else {
1.257 albertel 507: $result= &Apache::run::evaluate($result,$safeeval,$extras);
1.101 albertel 508: }
1.163 albertel 509: }
1.282 albertel 510: $Apache::lonxml::post_evaluate=1;
511:
1.190 albertel 512: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
1.249 albertel 513: #Style file definitions should be correct
1.250 albertel 514: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
1.311 albertel 515: $result=&latex_special_symbols($result);
1.249 albertel 516: }
1.190 albertel 517: }
518:
1.169 albertel 519: if ($Apache::lonxml::redirection) {
520: $Apache::lonxml::outputstack['-1'] .= $result;
521: } else {
522: $finaloutput.=$result;
523: }
524: $result = '';
525:
1.258 albertel 526: if ($token->[0] eq 'E' && !$dontpop) {
1.101 albertel 527: &end_tag($stack,$parstack,$token);
528: }
1.258 albertel 529: $dontpop=0;
1.224 albertel 530: }
1.212 albertel 531: if ($#$pars > -1) {
532: pop @$pars;
533: pop @Apache::lonxml::pwd;
534: }
1.101 albertel 535: }
536:
537: # if ($target eq 'meta') {
538: # $finaloutput.=&endredirection;
539: # }
540:
1.394 albertel 541: if ( $start && $target eq 'grade') { &endredirection(); }
1.389 albertel 542: if ( $Apache::lonxml::redirection > $startredirection) {
543: while ($Apache::lonxml::redirection > $startredirection) {
544: $finaloutput .= &endredirection();
1.387 albertel 545: }
546: }
1.101 albertel 547: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
548: $finaloutput=&afterburn($finaloutput);
1.216 sakharuk 549: }
1.101 albertel 550: return $finaloutput;
551: }
1.67 www 552:
1.318 matthew 553: ##
554: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
555: ## otherwise do not call it as we do not know what it is.
556: ##
1.7 albertel 557: sub callsub {
1.84 albertel 558: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 559: my $currentstring='';
1.72 albertel 560: my $nodefault;
1.7 albertel 561: {
1.59 albertel 562: my $sub1;
1.7 albertel 563: no strict 'refs';
1.68 www 564: my $tag=$token->[1];
1.236 www 565: # get utterly rid of extended html tags
566: if ($tag=~/^x\-/i) { return ''; }
1.141 albertel 567: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 568: if (!$space) {
1.141 albertel 569: $tag=~tr/A-Z/a-z/;
1.68 www 570: $sub=~tr/A-Z/a-z/;
1.141 albertel 571: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 572: }
1.97 albertel 573:
574: my $deleted=0;
575: if (($token->[0] eq 'S') && ($target eq 'modified')) {
576: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
577: $parstack,$parser,$safeeval,
578: $style);
579: }
580: if (!$deleted) {
581: if ($space) {
1.220 albertel 582: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 583: $sub1="$space\:\:$sub";
584: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
585: $parstack,$parser,$safeeval,
586: $style);
587: } else {
1.318 matthew 588: if ($target eq 'tex') {
589: # throw away tag name
590: return '';
591: }
1.220 albertel 592: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 593: if ($metamode <1) {
594: if (defined($token->[4]) && ($metamode < 1)) {
595: $currentstring = $token->[4];
596: } else {
597: $currentstring = $token->[2];
598: }
1.62 sakharuk 599: }
1.7 albertel 600: }
1.97 albertel 601: # &Apache::lonxml::debug("nodefalt:$nodefault:");
602: if ($currentstring eq '' && $nodefault eq '') {
603: if ($target eq 'edit') {
1.220 albertel 604: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 605: if ($token->[0] eq 'S') {
606: $currentstring = &Apache::edit::tag_start($target,$token);
607: } elsif ($token->[0] eq 'E') {
608: $currentstring = &Apache::edit::tag_end($target,$token);
609: }
1.441 albertel 610: }
611: }
612: if ($target eq 'modified' && $nodefault eq '') {
613: if ($currentstring eq '') {
614: if ($token->[0] eq 'S') {
615: $currentstring = $token->[4];
616: } elsif ($token->[0] eq 'E') {
617: $currentstring = $token->[2];
618: } else {
619: $currentstring = $token->[2];
620: }
621: }
1.97 albertel 622: if ($token->[0] eq 'S') {
1.447 albertel 623: $currentstring.=&Apache::edit::handle_insert();
1.210 www 624: } elsif ($token->[0] eq 'E') {
1.447 albertel 625: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 626: }
1.72 albertel 627: }
1.7 albertel 628: }
629: use strict 'refs';
630: }
631: return $currentstring;
1.82 ng 632: }
633:
1.465 albertel 634: {
635: my %state;
636:
637: sub init_state {
638: undef(%state);
639: }
640:
641: sub set_state {
642: my ($key,$value) = @_;
643: $state{$key} = $value;
644: return $value;
645: }
646: sub get_state {
647: my ($key) = @_;
648: return $state{$key};
649: }
650: }
651:
1.96 albertel 652: sub setup_globals {
1.172 albertel 653: my ($request,$target)=@_;
654: $Apache::lonxml::request=$request;
1.205 www 655: $errorcount=0;
656: $warningcount=0;
1.207 albertel 657: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 658: $Apache::lonxml::usestyle=1;
1.204 albertel 659: &init_counter();
1.462 foxr 660: &clear_bubble_lines_for_part();
1.465 albertel 661: &init_state();
1.469 albertel 662: &set_state('target',$target);
1.101 albertel 663: @Apache::lonxml::pwd=();
1.124 albertel 664: @Apache::lonxml::extlinks=();
1.448 albertel 665: @script_var_displays=();
1.281 albertel 666: @Apache::lonxml::ssi_info=();
1.282 albertel 667: $Apache::lonxml::post_evaluate=1;
1.295 albertel 668: $Apache::lonxml::warnings_error_header='';
1.397 albertel 669: $Apache::lonxml::substitute_LaTeX_symbols = 1;
1.96 albertel 670: if ($target eq 'meta') {
671: $Apache::lonxml::redirection = 0;
672: $Apache::lonxml::metamode = 1;
673: $Apache::lonxml::evaluate = 1;
674: $Apache::lonxml::import = 0;
1.129 albertel 675: } elsif ($target eq 'answer') {
676: $Apache::lonxml::redirection = 0;
677: $Apache::lonxml::metamode = 1;
678: $Apache::lonxml::evaluate = 1;
679: $Apache::lonxml::import = 1;
1.96 albertel 680: } elsif ($target eq 'grade') {
1.387 albertel 681: &startredirection(); #ended in inner_xmlparse on exit
1.96 albertel 682: $Apache::lonxml::metamode = 0;
683: $Apache::lonxml::evaluate = 1;
684: $Apache::lonxml::import = 1;
685: } elsif ($target eq 'modified') {
686: $Apache::lonxml::redirection = 0;
687: $Apache::lonxml::metamode = 0;
688: $Apache::lonxml::evaluate = 0;
689: $Apache::lonxml::import = 0;
690: } elsif ($target eq 'edit') {
691: $Apache::lonxml::redirection = 0;
692: $Apache::lonxml::metamode = 0;
693: $Apache::lonxml::evaluate = 0;
694: $Apache::lonxml::import = 0;
1.163 albertel 695: } elsif ($target eq 'analyze') {
696: $Apache::lonxml::redirection = 0;
697: $Apache::lonxml::metamode = 0;
698: $Apache::lonxml::evaluate = 1;
699: $Apache::lonxml::import = 1;
1.96 albertel 700: } else {
701: $Apache::lonxml::redirection = 0;
702: $Apache::lonxml::metamode = 0;
703: $Apache::lonxml::evaluate = 1;
704: $Apache::lonxml::import = 1;
705: }
706: }
707:
1.82 ng 708: sub init_safespace {
709: my ($target,$safeeval,$safehole,$safeinit) = @_;
1.393 albertel 710: $safeeval->deny_only(':dangerous');
711: $safeeval->reval('use Math::Complex;');
1.383 albertel 712: $safeeval->permit_only(":default");
1.82 ng 713: $safeeval->permit("entereval");
714: $safeeval->permit(":base_math");
715: $safeeval->permit("sort");
1.286 albertel 716: $safeeval->permit("time");
1.371 albertel 717: $safeeval->deny("rand");
718: $safeeval->deny("srand");
1.82 ng 719: $safeeval->deny(":base_io");
1.102 albertel 720: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.251 albertel 721: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
1.82 ng 722: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
1.324 albertel 723: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
724: '&chem_standard_order');
1.369 albertel 725: $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status');
1.471 bisitz 726: $safehole->wrap(\&Apache::response::implicit_multiplication,$safeeval,'&implicit_multiplication');
1.324 albertel 727:
1.431 www 728: $safehole->wrap(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval');
1.432 www 729: $safehole->wrap(\&Apache::lonmaxima::maxima_check,$safeeval,'&maxima_check');
1.433 albertel 730: $safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval,
731: '&maxima_cas_formula_fix');
732:
733: $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
734: '&capa_formula_fix');
1.431 www 735:
1.82 ng 736: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
737: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
738: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
739: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
740: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
741: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
742: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
743: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
744: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
745: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
746: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
747: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
748: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
749: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
750: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
751: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
752: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
753: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
754: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 755:
756: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
757: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
758: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
759: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
760: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
761: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
762: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
763: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
764: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
765: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
766: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
767: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
768: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
769: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
770: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
771: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
772: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
773: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
774: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
775: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
776: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
777: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
778:
1.383 albertel 779: $safehole->wrap(\&Math::Cephes::Matrix::mat,$safeeval,'&mat');
780: $safehole->wrap(\&Math::Cephes::Matrix::new,$safeeval,
781: '&Math::Cephes::Matrix::new');
782: $safehole->wrap(\&Math::Cephes::Matrix::coef,$safeeval,
783: '&Math::Cephes::Matrix::coef');
784: $safehole->wrap(\&Math::Cephes::Matrix::clr,$safeeval,
785: '&Math::Cephes::Matrix::clr');
786: $safehole->wrap(\&Math::Cephes::Matrix::add,$safeeval,
787: '&Math::Cephes::Matrix::add');
788: $safehole->wrap(\&Math::Cephes::Matrix::sub,$safeeval,
789: '&Math::Cephes::Matrix::sub');
790: $safehole->wrap(\&Math::Cephes::Matrix::mul,$safeeval,
791: '&Math::Cephes::Matrix::mul');
792: $safehole->wrap(\&Math::Cephes::Matrix::div,$safeeval,
793: '&Math::Cephes::Matrix::div');
794: $safehole->wrap(\&Math::Cephes::Matrix::inv,$safeeval,
795: '&Math::Cephes::Matrix::inv');
796: $safehole->wrap(\&Math::Cephes::Matrix::transp,$safeeval,
797: '&Math::Cephes::Matrix::transp');
798: $safehole->wrap(\&Math::Cephes::Matrix::simq,$safeeval,
799: '&Math::Cephes::Matrix::simq');
800: $safehole->wrap(\&Math::Cephes::Matrix::mat_to_vec,$safeeval,
801: '&Math::Cephes::Matrix::mat_to_vec');
802: $safehole->wrap(\&Math::Cephes::Matrix::vec_to_mat,$safeeval,
803: '&Math::Cephes::Matrix::vec_to_mat');
804: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
805: '&Math::Cephes::Matrix::check');
806: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
807: '&Math::Cephes::Matrix::check');
808:
1.215 albertel 809: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
810: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
811: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
812: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
813: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
814: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
815:
1.91 ng 816: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
817: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
818: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
819: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
820: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
821: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
822: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
823: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
824: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
825: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
826: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 827: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 828: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
829: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
830: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
831: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
832: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
833: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
834: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
835: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
836: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
1.458 albertel 837: $safehole->wrap(\&Apache::loncommon::languages,$safeeval,'&languages');
1.305 albertel 838: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
1.311 albertel 839: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
1.420 albertel 840: $safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
841: $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS');
1.322 albertel 842: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
1.430 albertel 843: # use Data::Dumper;
844: # $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper');
1.82 ng 845: #need to inspect this class of ops
846: # $safeeval->deny(":base_orig");
1.331 albertel 847: $safeeval->permit("require");
1.91 ng 848: $safeinit .= ';$external::target="'.$target.'";';
1.82 ng 849: &Apache::run::run($safeinit,$safeeval);
1.373 albertel 850: &initialize_rndseed($safeeval);
851: }
1.303 albertel 852:
1.393 albertel 853: sub clean_safespace {
854: my ($safeeval) = @_;
855: delete_package_recurse($safeeval->{Root});
856: }
857:
858: sub delete_package_recurse {
859: my ($package) = @_;
860: my @subp;
861: {
862: no strict 'refs';
863: while (my ($key,$val) = each(%{*{"$package\::"}})) {
864: if (!defined($val)) { next; }
865: local (*ENTRY) = $val;
866: if (defined *ENTRY{HASH} && $key =~ /::$/ &&
867: $key ne "main::" && $key ne "<none>::")
868: {
869: my ($p) = $package ne "main" ? "$package\::" : "";
870: ($p .= $key) =~ s/::$//;
871: push(@subp,$p);
872: }
873: }
874: }
875: foreach my $p (@subp) {
876: delete_package_recurse($p);
877: }
878: Symbol::delete_package($package);
879: }
880:
1.373 albertel 881: sub initialize_rndseed {
882: my ($safeeval)=@_;
883: my $rndseed;
1.423 albertel 884: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.373 albertel 885: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
886: my $safeinit = '$external::randomseed="'.$rndseed.'";';
887: &Apache::lonxml::debug("Setting rndseed to $rndseed");
888: &Apache::run::run($safeinit,$safeeval);
1.207 albertel 889: }
890:
891: sub default_homework_load {
892: my ($safeeval)=@_;
893: &Apache::lonxml::debug('Loading default_homework');
894: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
1.241 albertel 895: if ($default eq -1) {
1.207 albertel 896: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
897: } else {
898: &Apache::run::run($default,$safeeval);
899: $Apache::lonxml::default_homework_loaded=1;
900: }
1.17 albertel 901: }
902:
1.358 albertel 903: {
904: my $alarm_depth;
905: sub init_alarm {
906: alarm(0);
907: $alarm_depth=0;
908: }
909:
910: sub start_alarm {
911: if ($alarm_depth<1) {
912: my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'});
913: if ($old) {
914: &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur.");
915: }
916: }
917: $alarm_depth++;
918: }
919:
920: sub end_alarm {
921: $alarm_depth--;
922: if ($alarm_depth<1) { alarm(0); }
923: }
924: }
1.328 albertel 925: my $metamode_was;
1.55 albertel 926: sub startredirection {
1.328 albertel 927: if (!$Apache::lonxml::redirection) {
928: $metamode_was=$Apache::lonxml::metamode;
929: }
930: $Apache::lonxml::metamode=0;
931: $Apache::lonxml::redirection++;
932: push (@Apache::lonxml::outputstack, '');
1.55 albertel 933: }
934:
935: sub endredirection {
1.328 albertel 936: if (!$Apache::lonxml::redirection) {
1.380 www 937: &Apache::lonxml::error("Endredirection was called before a startredirection, perhaps you have unbalanced tags. Some debugging information:".join ":",caller);
1.328 albertel 938: return '';
939: }
940: $Apache::lonxml::redirection--;
941: if (!$Apache::lonxml::redirection) {
942: $Apache::lonxml::metamode=$metamode_was;
943: }
944: pop @Apache::lonxml::outputstack;
1.97 albertel 945: }
1.459 albertel 946: sub in_redirection {
947: return ($Apache::lonxml::redirection > 0)
948: }
1.97 albertel 949:
950: sub end_tag {
951: my ($tagstack,$parstack,$token)=@_;
952: pop(@$tagstack);
953: pop(@$parstack);
954: &decreasedepth($token);
1.55 albertel 955: }
956:
1.17 albertel 957: sub initdepth {
958: @Apache::lonxml::depthcounter=();
1.439 albertel 959: undef($Apache::lonxml::last_depth_count);
1.17 albertel 960: }
961:
1.438 albertel 962:
1.339 albertel 963: my @timers;
964: my $lasttime;
1.438 albertel 965: # @Apache::lonxml::depthcounter -> count of tags that exist so
966: # far at each level
1.439 albertel 967: # $Apache::lonxml::last_depth_count -> when ascending, need to
968: # remember the count for the level below the current level (for
969: # example going from 1_2 -> 1 -> 1_3 need to remember the 2 )
1.438 albertel 970:
1.17 albertel 971: sub increasedepth {
1.19 albertel 972: my ($token) = @_;
1.439 albertel 973: push(@Apache::lonxml::depthcounter,$Apache::lonxml::last_depth_count+1);
974: undef($Apache::lonxml::last_depth_count);
1.340 albertel 975: my $time;
976: if ($Apache::lonxml::debug eq "1") {
977: push(@timers,[&gettimeofday()]);
978: $time=&tv_interval($lasttime);
979: $lasttime=[&gettimeofday()];
980: }
1.439 albertel 981: my $spacing=' 'x($#Apache::lonxml::depthcounter);
1.438 albertel 982: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
1.439 albertel 983: # &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time");
1.54 albertel 984: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 985: }
986:
987: sub decreasedepth {
1.19 albertel 988: my ($token) = @_;
1.439 albertel 989: if ( $#Apache::lonxml::depthcounter == -1) {
990: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1.43 albertel 991: }
1.439 albertel 992: $Apache::lonxml::last_depth_count = pop(@Apache::lonxml::depthcounter);
993:
1.340 albertel 994: my ($timer,$time);
995: if ($Apache::lonxml::debug eq "1") {
996: $timer=pop(@timers);
997: $time=&tv_interval($lasttime);
998: $lasttime=[&gettimeofday()];
999: }
1.439 albertel 1000: my $spacing=' 'x($#Apache::lonxml::depthcounter);
1001: $Apache::lonxml::curdepth = join('_',@Apache::lonxml::depthcounter);
1002: # &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time : ".&tv_interval($timer));
1.54 albertel 1003: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 1004: }
1.19 albertel 1005:
1.399 albertel 1006: sub get_id {
1007: my ($parstack,$safeeval)=@_;
1008: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.449 albertel 1009: if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) {
1010: &error(&mt("ID "[_1]" contains invalid characters, IDs are only allowed to contain letters, numbers, spaces and -",'<tt>'.$id.'</tt>'));
1.399 albertel 1011: }
1012: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1013: return $id;
1014: }
1015:
1.180 albertel 1016: sub get_all_text_unbalanced {
1.190 albertel 1017: #there is a copy of this in lonpublisher.pm
1.326 albertel 1018: my($tag,$pars)= @_;
1019: my $token;
1020: my $result='';
1021: $tag='<'.$tag.'>';
1022: while ($token = $$pars[-1]->get_token) {
1023: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.386 albertel 1024: if ($token->[0] eq 'T' && $token->[2]) {
1.382 albertel 1025: $result.='<![CDATA['.$token->[1].']]>';
1026: } else {
1027: $result.=$token->[1];
1028: }
1.326 albertel 1029: } elsif ($token->[0] eq 'PI') {
1030: $result.=$token->[2];
1031: } elsif ($token->[0] eq 'S') {
1032: $result.=$token->[4];
1033: } elsif ($token->[0] eq 'E') {
1034: $result.=$token->[2];
1035: }
1036: if ($result =~ /\Q$tag\E/is) {
1037: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
1038: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
1039: #&Apache::lonxml::debug('Result is :'.$1);
1040: $redo=$tag.$redo;
1041: &Apache::lonxml::newparser($pars,\$redo);
1042: last;
1043: }
1044: }
1045: return $result
1.462 foxr 1046:
1.204 albertel 1047: }
1048:
1.462 foxr 1049: #########################################################################
1050: # #
1051: # bubble line counter management #
1052: # #
1053: #########################################################################
1054:
1.447 albertel 1055: =pod
1056:
1057: For bubble grading mode and exam bubble printing mode, the tracking of
1058: the current 'bubble line number' is stored in the %env element
1059: 'form.counter', and is modifed and handled by the following routines.
1060:
1061: The value of it is stored in $Apache:lonxml::counter when live and
1062: stored back to env after done.
1063:
1064: =item &increment_counter($increment);
1065:
1066: Increments the internal counter environment variable a specified amount
1067:
1068: Optional Arguments:
1069: $increment - amount to increment by (defaults to 1)
1.462 foxr 1070: Also 1 if the value is negative or zero.
1.467 foxr 1071: $part_response - A concatenation of the part and response id
1072: identifying exactly what is being 'answered'.
1073:
1.447 albertel 1074:
1075: =cut
1076:
1.204 albertel 1077: sub increment_counter {
1.467 foxr 1078: my ($increment, $part_response) = @_;
1.462 foxr 1079: if (!defined($increment) || $increment le 0) {
1080: $increment = 1;
1081: }
1082: $Apache::lonxml::counter += $increment;
1083:
1.466 foxr 1084: # If the caller supplied the response_id parameter,
1.462 foxr 1085: # Maintain its counter.. creating if necessary.
1086:
1.470 albertel 1087: if (defined($part_response)) {
1.467 foxr 1088: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1089: $Apache::lonxml::counters_per_part{$part_response} = 0;
1.462 foxr 1090: }
1.467 foxr 1091: $Apache::lonxml::counters_per_part{$part_response} += $increment;
1092: my $new_value = $Apache::lonxml::counters_per_part{$part_response};
1.247 albertel 1093: }
1.462 foxr 1094:
1.289 sakharuk 1095: $Apache::lonxml::counter_changed=1;
1.204 albertel 1096: }
1097:
1.447 albertel 1098: =pod
1099:
1.461 foxr 1100: =item &init_counter($increment);
1.447 albertel 1101:
1102: Initialize the internal counter environment variable
1103:
1104: =cut
1105:
1.204 albertel 1106: sub init_counter {
1.391 albertel 1107: if ($env{'request.state'} eq 'construct') {
1108: $Apache::lonxml::counter=1;
1109: $Apache::lonxml::counter_changed=1;
1110: } elsif (defined($env{'form.counter'})) {
1.372 albertel 1111: $Apache::lonxml::counter=$env{'form.counter'};
1.247 albertel 1112: $Apache::lonxml::counter_changed=0;
1.237 sakharuk 1113: } else {
1.204 albertel 1114: $Apache::lonxml::counter=1;
1.247 albertel 1115: $Apache::lonxml::counter_changed=1;
1.204 albertel 1116: }
1117: }
1118:
1119: sub store_counter {
1120: &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
1.401 albertel 1121: $Apache::lonxml::counter_changed=0;
1.204 albertel 1122: return '';
1.180 albertel 1123: }
1124:
1.398 albertel 1125: {
1126: my $state;
1127: sub clear_problem_counter {
1128: undef($state);
1129: &Apache::lonnet::delenv('form.counter');
1130: &Apache::lonxml::init_counter();
1131: &Apache::lonxml::store_counter();
1132: }
1133:
1134: sub remember_problem_counter {
1.422 albertel 1135: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.398 albertel 1136: $state = $env{'form.counter'};
1137: }
1138:
1139: sub restore_problem_counter {
1140: if (defined($state)) {
1141: &Apache::lonnet::appenv(('form.counter' => $state));
1142: }
1143: }
1.401 albertel 1144: sub get_problem_counter {
1145: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.422 albertel 1146: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.401 albertel 1147: return $env{'form.counter'};
1148: }
1.398 albertel 1149: }
1150:
1.462 foxr 1151: =pod
1152:
1.468 albertel 1153: =item bubble_lines_for_part(part_response)
1.462 foxr 1154:
1155: Returns the number of lines required to get a response for
1.467 foxr 1156: $part_response (this is just $Apache::lonxml::counters_per_part{$part_response}
1.462 foxr 1157:
1158: =cut
1159:
1160: sub bubble_lines_for_part {
1.467 foxr 1161: my ($part_response) = @_;
1.462 foxr 1162:
1.467 foxr 1163: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1.462 foxr 1164: return 0;
1165: } else {
1.467 foxr 1166: return $Apache::lonxml::counters_per_part{$part_response};
1.462 foxr 1167: }
1168: }
1169:
1170: =pod
1171:
1172: =item clear_bubble_lines_for_part
1173:
1174: Clears the hash of bubble lines per part. If a caller
1175: needs to analyze several resources this should be called between
1176: resources to reset the hash for each problem being analyzed.
1177:
1178: =cut
1179:
1180: sub clear_bubble_lines_for_part {
1181: undef(%Apache::lonxml::counters_per_part);
1182: }
1183:
1184: =pod
1185:
1.468 albertel 1186: =item set_bubble_lines(part_response, value)
1.462 foxr 1187:
1188: If there is a problem part, that for whatever reason
1189: requires bubble lines that are not
1190: the same as the counter increment, it can call this sub during
1191: analysis to set its hash value explicitly.
1192:
1193: =cut
1194:
1195: sub set_bubble_lines {
1.467 foxr 1196: my ($part_response, $value) = @_;
1.462 foxr 1197:
1.467 foxr 1198: $Apache::lonxml::counters_per_part{$part_response} = $value;
1.462 foxr 1199: }
1200:
1201: =pod
1202:
1203: =item get_bubble_line_hash
1204:
1205: Returns the current bubble line hash. This is assumed to
1206: be small so we return a copy
1207:
1208:
1209: =cut
1210:
1211: sub get_bubble_line_hash {
1212: return %Apache::lonxml::counters_per_part;
1213: }
1214:
1215:
1216: #--------------------------------------------------
1217:
1.19 albertel 1218: sub get_all_text {
1.270 albertel 1219: my($tag,$pars,$style)= @_;
1220: my $gotfullstack=1;
1221: if (ref($pars) ne 'ARRAY') {
1222: $gotfullstack=0;
1223: $pars=[$pars];
1224: }
1225: if (ref($style) ne 'HASH') {
1226: $style={};
1227: }
1228: my $depth=0;
1229: my $token;
1230: my $result='';
1231: if ( $tag =~ m:^/: ) {
1232: my $tag=substr($tag,1);
1233: #&Apache::lonxml::debug("have:$tag:");
1234: my $top_empty=0;
1235: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
1236: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
1237: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
1238: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.382 albertel 1239: if ($token->[2]) {
1240: $result.='<![CDATA['.$token->[1].']]>';
1241: } else {
1242: $result.=$token->[1];
1243: }
1.270 albertel 1244: } elsif ($token->[0] eq 'PI') {
1245: $result.=$token->[2];
1246: } elsif ($token->[0] eq 'S') {
1.316 albertel 1247: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
1248: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1249: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1250: $result.=$token->[4];
1251: } elsif ($token->[0] eq 'E') {
1.316 albertel 1252: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1.270 albertel 1253: #skip sending back the last end tag
1.283 albertel 1254: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1.270 albertel 1255: my $string=
1256: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
1257: $$style{'/'.$token->[1]}.
1258: $token->[2].
1259: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
1260: &Apache::lonxml::newparser($pars,\$string);
1261: #&Apache::lonxml::debug("reParsing $string");
1262: next;
1263: }
1264: if ($depth > -1) {
1265: $result.=$token->[2];
1266: } else {
1267: $$pars[-1]->unget_token($token);
1268: }
1269: }
1270: }
1271: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
1272: if (($depth >=0) && ($#$pars > 0) ) {
1273: pop(@$pars);
1274: pop(@Apache::lonxml::pwd);
1275: }
1276: }
1277: if ($top_empty && $depth >= 0) {
1278: #never found the end tag ran out of text, throw error send back blank
1279: &error('Never found end tag for <'.$tag.
1280: '> current string <pre>'.
1.314 albertel 1281: &HTML::Entities::encode($result,'<>&"').
1.270 albertel 1282: '</pre>');
1283: if ($gotfullstack) {
1284: my $newstring='</'.$tag.'>'.$result;
1285: &Apache::lonxml::newparser($pars,\$newstring);
1286: }
1287: $result='';
1288: }
1289: } else {
1290: while ($#$pars > -1) {
1291: while ($token = $$pars[-1]->get_token) {
1292: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
1293: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
1294: ($token->[0] eq 'D')) {
1.382 albertel 1295: if ($token->[2]) {
1296: $result.='<![CDATA['.$token->[1].']]>';
1297: } else {
1298: $result.=$token->[1];
1299: }
1.270 albertel 1300: } elsif ($token->[0] eq 'PI') {
1301: $result.=$token->[2];
1302: } elsif ($token->[0] eq 'S') {
1.316 albertel 1303: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1.270 albertel 1304: $$pars[-1]->unget_token($token); last;
1305: } else {
1306: $result.=$token->[4];
1307: }
1.316 albertel 1308: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1309: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1310: } elsif ($token->[0] eq 'E') {
1311: $result.=$token->[2];
1312: }
1313: }
1314: if (($#$pars > 0) ) {
1315: pop(@$pars);
1316: pop(@Apache::lonxml::pwd);
1317: } else { last; }
1318: }
1319: }
1320: #&Apache::lonxml::debug("Exit:$result:");
1321: return $result
1.19 albertel 1322: }
1323:
1.23 albertel 1324: sub newparser {
1325: my ($parser,$contentref,$dir) = @_;
1.167 albertel 1326: push (@$parser,HTML::LCParser->new($contentref));
1.365 albertel 1327: $$parser[-1]->xml_mode(1);
1328: $$parser[-1]->marked_sections(1);
1.23 albertel 1329: if ( $dir eq '' ) {
1330: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1331: } else {
1332: push (@Apache::lonxml::pwd, $dir);
1333: }
1334: }
1.1 sakharuk 1335:
1.8 albertel 1336: sub parstring {
1.417 albertel 1337: my ($token) = @_;
1338: my (@vars,@values);
1339: foreach my $attr (@{$token->[3]}) {
1340: if ($attr!~/\W/) {
1341: my $val=$token->[2]->{$attr};
1342: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1343: $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
1344: $val =~ s/(\$)$/\\$1/;
1345: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1346: push(@vars,"\$$attr");
1347: push(@values,"\"$val\"");
1348: }
1349: }
1350: my $var_init =
1351: (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
1352: : '';
1353: return $var_init;
1.8 albertel 1354: }
1.22 albertel 1355:
1.384 albertel 1356: sub extlink {
1357: my ($res,$exact)=@_;
1358: if (!$exact) {
1359: $res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
1360: }
1361: push(@Apache::lonxml::extlinks,$res)
1362: }
1363:
1.34 www 1364: sub writeallows {
1.126 www 1365: unless ($#extlinks>=0) { return; }
1.377 albertel 1366: my $thisurl = &Apache::lonnet::clutter(shift);
1.372 albertel 1367: if ($env{'httpref.'.$thisurl}) {
1368: $thisurl=$env{'httpref.'.$thisurl};
1.111 www 1369: }
1.34 www 1370: my $thisdir=$thisurl;
1371: $thisdir=~s/\/[^\/]+$//;
1372: my %httpref=();
1.142 albertel 1373: foreach (@extlinks) {
1.34 www 1374: $httpref{'httpref.'.
1.444 albertel 1375: &Apache::lonnet::hreflocation($thisdir,&unescape($_))}=$thisurl;
1.142 albertel 1376: }
1.126 www 1377: @extlinks=();
1.34 www 1378: &Apache::lonnet::appenv(%httpref);
1379: }
1380:
1.281 albertel 1381: sub register_ssi {
1382: my ($url,%form)=@_;
1383: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1384: return '';
1385: }
1386:
1387: sub do_registered_ssi {
1388: foreach my $info (@Apache::lonxml::ssi_info) {
1389: my %form=%{ $info->{'form'}};
1390: my $url=$info->{'url'};
1391: &Apache::lonnet::ssi($url,%form);
1392: }
1393: }
1.448 albertel 1394:
1395: sub add_script_result {
1396: my ($display) = @_;
1397: push(@script_var_displays, $display);
1398: }
1399:
1.66 www 1400: #
1401: # Afterburner handles anchors, highlights and links
1402: #
1403: sub afterburn {
1404: my $result=shift;
1.154 albertel 1405: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1406: ['highlight','anchor','link']);
1.372 albertel 1407: if ($env{'form.highlight'}) {
1408: foreach (split(/\,/,$env{'form.highlight'})) {
1.66 www 1409: my $anchorname=$_;
1410: my $matchthis=$anchorname;
1411: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1412: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1413: }
1.66 www 1414: }
1.372 albertel 1415: if ($env{'form.link'}) {
1416: foreach (split(/\,/,$env{'form.link'})) {
1.66 www 1417: my ($anchorname,$linkurl)=split(/\>/,$_);
1418: my $matchthis=$anchorname;
1419: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1420: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1421: }
1.66 www 1422: }
1.372 albertel 1423: if ($env{'form.anchor'}) {
1424: my $anchorname=$env{'form.anchor'};
1.66 www 1425: my $matchthis=$anchorname;
1426: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1427: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1.66 www 1428: $result.=(<<"ENDSCRIPT");
1.226 albertel 1429: <script type="text/javascript">
1.66 www 1430: document.location.hash='$anchorname';
1431: </script>
1432: ENDSCRIPT
1433: }
1434: return $result;
1435: }
1436:
1.79 www 1437: sub storefile {
1438: my ($file,$contents)=@_;
1.290 albertel 1439: &Apache::lonnet::correct_line_ends(\$contents);
1.79 www 1440: if (my $fh=Apache::File->new('>'.$file)) {
1441: print $fh $contents;
1442: $fh->close();
1.271 www 1443: return 1;
1.147 albertel 1444: } else {
1.271 www 1445: &warning("Unable to save file $file");
1446: return 0;
1.79 www 1447: }
1448: }
1449:
1.151 albertel 1450: sub createnewhtml {
1.321 www 1451: my $title=&mt('Title of document goes here');
1452: my $body=&mt('Body of document goes here');
1453: my $filecontents=(<<SIMPLECONTENT);
1.78 www 1454: <html>
1455: <head>
1.321 www 1456: <title>$title</title>
1.78 www 1457: </head>
1458: <body bgcolor="#FFFFFF">
1.321 www 1459: $body
1.78 www 1460: </body>
1461: </html>
1462: SIMPLECONTENT
1.321 www 1463: return $filecontents;
1.151 albertel 1464: }
1465:
1.274 albertel 1466: sub createnewsty {
1467: my $filecontents=(<<SIMPLECONTENT);
1468: <definetag name="">
1469: <render>
1470: <web></web>
1471: <tex></tex>
1472: </render>
1473: </definetag>
1474: SIMPLECONTENT
1475: return $filecontents;
1476: }
1477:
1.472 ! www 1478: sub verify_html {
! 1479: my ($filecontents)=@_;
! 1480: if ($filecontents!~/(?:\<|\<\;)(?:html|xml)[^\<]*(?:\>|\>\;)/is) {
! 1481: return &mt('File does not have [_1] or [_2] starting tag','<html>','<xml>');
! 1482: }
! 1483: if ($filecontents!~/(?:\<|\<\;)\/(?:html|xml)(?:\>|\>\;)/is) {
! 1484: return &mt('File does not have [_1] or [_2] ending tag','<html>','<xml>');
! 1485: }
! 1486: if ($filecontents!~/(?:\<|\<\;)(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
! 1487: return &mt('File does not have [_1] or [_2] starting tag','<body>','<frameset>');
! 1488: }
! 1489: if ($filecontents!~/(?:\<|\<\;)\/(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
! 1490: return &mt('File does not have [_1] or [_2] ending tag','<body>','<frameset>');
! 1491: }
! 1492: return '';
! 1493: }
1.147 albertel 1494:
1.151 albertel 1495: sub inserteditinfo {
1.470 albertel 1496: my ($filecontents, $filetype, $filename)=@_;
1.314 albertel 1497: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1.274 albertel 1498: my $xml_help = '';
1.321 www 1499: my $initialize='';
1.452 albertel 1500: my $textarea_id = 'filecont';
1501: my ($add_to_onload, $add_to_onresize);
1.456 albertel 1502: $initialize=&Apache::lonhtmlcommon::spellheader();
1503: if ($filetype eq 'html'
1504: && (!&Apache::lonhtmlcommon::htmlareablocked() &&
1505: &Apache::lonhtmlcommon::htmlareabrowser())) {
1.463 albertel 1506: $textarea_id .= '___Frame';
1507: my $lang = &Apache::lonhtmlcommon::htmlarea_lang();
1.456 albertel 1508: $initialize.=(<<FULLPAGE);
1.321 www 1509: <script type="text/javascript">
1.463 albertel 1510: lonca
1.321 www 1511: function initDocument() {
1.463 albertel 1512: var oFCKeditor = new FCKeditor('filecont');
1513: oFCKeditor.Config['CustomConfigurationsPath'] = '/fckeditor/loncapaconfig.js' ;
1514: oFCKeditor.Config['FullPage'] = true
1515: oFCKeditor.Config['AutoDetectLanguage'] = false;
1516: oFCKeditor.Config['DefaultLanguage'] = "$lang";
1517: oFCKeditor.ReplaceTextarea();
1518: }
1519: function check_if_dirty(editor) {
1520: if (editor.IsDirty()) {
1521: unClean();
1522: }
1523: }
1524: function FCKeditor_OnComplete(editor) {
1525: editor.Events.AttachEvent("OnSelectionChange",check_if_dirty);
1526: resize_textarea('$textarea_id','LC_aftertextarea');
1.321 www 1527: }
1528: </script>
1529: FULLPAGE
1.456 albertel 1530: } else {
1531: $initialize.=(<<FULLPAGE);
1.347 albertel 1532: <script type="text/javascript">
1533: function initDocument() {
1.453 albertel 1534: resize_textarea('$textarea_id','LC_aftertextarea');
1.347 albertel 1535: }
1536: </script>
1537: FULLPAGE
1.456 albertel 1538: }
1539:
1540: $add_to_onload = 'initDocument();';
1541: $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');";
1542:
1543: if ($filetype eq 'html') {
1.321 www 1544: $xml_help=&Apache::loncommon::helpLatexCheatsheet();
1.274 albertel 1545: }
1.452 albertel 1546:
1.254 albertel 1547: my $titledisplay=&display_title();
1.426 banghart 1548: my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
1549: 'vi' => 'Save and View',
1.427 banghart 1550: 'dv' => 'Discard Edits and View',
1.428 banghart 1551: 'un' => 'undo',
1.280 www 1552: 'ed' => 'Edit');
1.470 albertel 1553: my $spelllink .=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
1.451 albertel 1554: my $textarea_events = &Apache::edit::element_change_detection();
1555: my $form_events = &Apache::edit::form_change_detection();
1.472 ! www 1556: my $htmlerror=&verify_html($filecontents);
! 1557: if ($htmlerror) {
! 1558: $htmlerror='<span class="LC_error">'.$htmlerror.'</span></p>';
! 1559: }
1.78 www 1560: my $editfooter=(<<ENDFOOTER);
1.321 www 1561: $initialize
1.78 www 1562: <a name="editsection" />
1.451 albertel 1563: <form $form_events method="post" name="xmledit">
1.470 albertel 1564: <div class="LC_edit_problem_editxml_header">
1565: <table class="LC_edit_problem_header_title"><tr><td>
1566: $filename
1567: </td><td align="right">
1568: $xml_help
1569: </td></tr>
1570: </table>
1571: <div class="LC_edit_problem_discards">
1572: <input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
1573: <input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" />
1.472 ! www 1574: $spelllink $htmlerror
1.470 albertel 1575: </div>
1576: <div class="LC_edit_problem_saves">
1577: <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
1578: <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
1579: </div>
1580: </div>
1581: <textarea $textarea_events style="width:100%" cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
1582: <div id="LC_aftertextarea">
1583: <br />
1584: $titledisplay
1585: </div>
1.78 www 1586: </form>
1.321 www 1587: </body>
1.78 www 1588: ENDFOOTER
1.452 albertel 1589: return ($editfooter,$add_to_onload,$add_to_onresize);;
1.78 www 1590: }
1591:
1.152 albertel 1592: sub get_target {
1.372 albertel 1593: my $viewgrades=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1594: if ( $env{'request.state'} eq 'published') {
1595: if ( defined($env{'form.grade_target'})
1.152 albertel 1596: && ($viewgrades == 'F' )) {
1.372 albertel 1597: return ($env{'form.grade_target'});
1598: } elsif (defined($env{'form.grade_target'})) {
1599: if (($env{'form.grade_target'} eq 'web') ||
1600: ($env{'form.grade_target'} eq 'tex') ) {
1601: return $env{'form.grade_target'}
1.153 albertel 1602: } else {
1603: return 'web';
1604: }
1.152 albertel 1605: } else {
1606: return 'web';
1607: }
1.372 albertel 1608: } elsif ($env{'request.state'} eq 'construct') {
1609: if ( defined($env{'form.grade_target'})) {
1610: return ($env{'form.grade_target'});
1.152 albertel 1611: } else {
1612: return 'web';
1613: }
1614: } else {
1615: return 'web';
1616: }
1617: }
1618:
1.24 sakharuk 1619: sub handler {
1.255 sakharuk 1620: my $request=shift;
1621:
1622: my $target=&get_target();
1623:
1.372 albertel 1624: $Apache::lonxml::debug=$env{'user.debug'};
1.255 sakharuk 1625:
1.364 albertel 1626: &Apache::loncommon::content_type($request,'text/html');
1.255 sakharuk 1627: &Apache::loncommon::no_cache($request);
1.372 albertel 1628: if ($env{'request.state'} eq 'published') {
1.363 albertel 1629: $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
1630: 'lastrevisiondate'));
1631: }
1.255 sakharuk 1632: $request->send_http_header;
1633:
1634: return OK if $request->header_only;
1.68 www 1635:
1636:
1.255 sakharuk 1637: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.274 albertel 1638: my $filetype;
1639: if ($file =~ /\.sty$/) {
1640: $filetype='sty';
1641: } else {
1642: $filetype='html';
1643: }
1.78 www 1644: #
1645: # Edit action? Save file.
1646: #
1.428 banghart 1647: if (!($env{'request.state'} eq 'published')) {
1648: if ($env{'form.savethisfile'} || $env{'form.viewmode'} || $env{'form.Undo'}) {
1.429 albertel 1649: my $html_file=&Apache::lonnet::getfile($file);
1650: my $error = &Apache::lonhomework::handle_save_or_undo($request, \$html_file, \$env{'form.filecont'});
1.472 ! www 1651: if ($env{'form.savethisfile'}) {
! 1652: $env{'form.editmode'}='Edit'; #force edit mode
! 1653: }
1.255 sakharuk 1654: }
1655: }
1656: my %mystyle;
1657: my $result = '';
1658: my $filecontents=&Apache::lonnet::getfile($file);
1659: if ($filecontents eq -1) {
1.402 albertel 1660: my $start_page=&Apache::loncommon::start_page('File Error');
1.412 albertel 1661: my $end_page=&Apache::loncommon::end_page();
1.284 www 1662: my $fnf=&mt('File not found');
1.255 sakharuk 1663: $result=(<<ENDNOTFOUND);
1.402 albertel 1664: $start_page
1.284 www 1665: <b>$fnf: $file</b>
1.402 albertel 1666: $end_page
1.78 www 1667: ENDNOTFOUND
1.343 albertel 1668: $filecontents='';
1.372 albertel 1669: if ($env{'request.state'} ne 'published') {
1.274 albertel 1670: if ($filetype eq 'sty') {
1671: $filecontents=&createnewsty();
1672: } else {
1673: $filecontents=&createnewhtml();
1674: }
1.372 albertel 1675: $env{'form.editmode'}='Edit'; #force edit mode
1.255 sakharuk 1676: }
1677: } else {
1.372 albertel 1678: unless ($env{'request.state'} eq 'published') {
1.343 albertel 1679: if ($filecontents=~/BEGIN LON-CAPA Internal/) {
1.381 www 1680: &Apache::lonxml::error(&mt('This file appears to be a rendering of a LON-CAPA resource. If this is correct, this resource will act very oddly and incorrectly.'));
1.343 albertel 1681: }
1.264 www 1682: #
1683: # we are in construction space, see if edit mode forced
1.385 albertel 1684: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1685: ['editmode']);
1.255 sakharuk 1686: }
1.427 banghart 1687: if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
1.455 albertel 1688: &Apache::structuretags::reset_problem_globals();
1.255 sakharuk 1689: $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
1690: '',%mystyle);
1.455 albertel 1691: # .html files may contain <problem> or <Task> need to clean
1692: # up if it did
1693: &Apache::structuretags::reset_problem_globals();
1694: &Apache::lonhomework::finished_parsing();
1.385 albertel 1695: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1696: ['rawmode']);
1.395 albertel 1697: if ($env{'form.rawmode'}) { $result = $filecontents; }
1.456 albertel 1698: if ($filetype eq 'sty') {
1.457 albertel 1699: my $controls =
1700: ($env{'request.state'} eq 'construct') ? &Apache::londefdef::edit_controls()
1701: : '';
1.456 albertel 1702: my %options = ('bgcolor' => '#FFFFFF');
1703: $result =
1704: &Apache::loncommon::start_page(undef,undef,\%options).
1.457 albertel 1705: $controls.
1.456 albertel 1706: $result.
1707: &Apache::loncommon::end_page();
1708: }
1.255 sakharuk 1709: }
1.147 albertel 1710: }
1.456 albertel 1711:
1.78 www 1712: #
1713: # Edit action? Insert editing commands
1714: #
1.372 albertel 1715: unless ($env{'request.state'} eq 'published') {
1.427 banghart 1716: if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
1.450 albertel 1717: {
1.470 albertel 1718: my $displayfile=$request->uri;
1719: $displayfile=~s/^\/[^\/]*//;
1720:
1.452 albertel 1721: my ($edit_info, $add_to_onload, $add_to_onresize)=
1.470 albertel 1722: &inserteditinfo($filecontents,$filetype,$displayfile);
1.450 albertel 1723:
1724: my %options =
1725: ('add_entries' =>
1.452 albertel 1726: {'onresize' => $add_to_onresize,
1727: 'onload' => $add_to_onload, });
1728:
1.402 albertel 1729: if ($env{'environment.remote'} ne 'off') {
1730: $options{'bgcolor'} = '#FFFFFF';
1.450 albertel 1731: $options{'only_body'} = 1;
1.349 albertel 1732: }
1.452 albertel 1733: my $js =
1734: &Apache::edit::js_change_detection().
1735: &Apache::loncommon::resize_textarea_js();
1.451 albertel 1736: my $start_page = &Apache::loncommon::start_page(undef,$js,
1.402 albertel 1737: \%options);
1738: $result=$start_page.
1.470 albertel 1739: &Apache::lonxml::message_location().
1.450 albertel 1740: $edit_info.
1741: &Apache::loncommon::end_page();
1.255 sakharuk 1742: }
1.147 albertel 1743: }
1.402 albertel 1744: if ($filetype eq 'html') { &writeallows($request->uri); }
1.255 sakharuk 1745:
1.309 albertel 1746: &Apache::lonxml::add_messages(\$result);
1.255 sakharuk 1747: $request->print($result);
1748:
1749: return OK;
1.253 albertel 1750: }
1751:
1752: sub display_title {
1753: my $result;
1.372 albertel 1754: if ($env{'request.state'} eq 'construct') {
1.253 albertel 1755: my $title=&Apache::lonnet::gettitle();
1756: if (!defined($title) || $title eq '') {
1.372 albertel 1757: $title = $env{'request.filename'};
1.253 albertel 1758: $title = substr($title, rindex($title, '/') + 1);
1759: }
1760: $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA Construction Space';</script>";
1761: }
1762: return $result;
1.24 sakharuk 1763: }
1.147 albertel 1764:
1.22 albertel 1765: sub debug {
1.298 albertel 1766: if ($Apache::lonxml::debug eq "1") {
1767: $|=1;
1.300 albertel 1768: my $request=$Apache::lonxml::request;
1.388 albertel 1769: if (!$request) {
1770: eval { $request=Apache->request; };
1771: }
1772: if (!$request) {
1773: eval { $request=Apache2::RequestUtil->request; };
1774: }
1.314 albertel 1775: $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
1.346 albertel 1776: #&Apache::lonnet::logthis($_[0]);
1.298 albertel 1777: }
1.22 albertel 1778: }
1.49 albertel 1779:
1.348 albertel 1780: sub show_error_warn_msg {
1.372 albertel 1781: if ($env{'request.filename'} eq '/home/httpd/html/res/lib/templates/simpleproblem.problem' &&
1782: &Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1.351 albertel 1783: return 1;
1784: }
1.348 albertel 1785: return (($Apache::lonxml::debug eq 1) ||
1.372 albertel 1786: ($env{'request.state'} eq 'construct') ||
1.348 albertel 1787: ($Apache::lonhomework::browse eq 'F'
1788: &&
1.372 albertel 1789: $env{'form.show_errors'} eq 'on'));
1.348 albertel 1790: }
1791:
1.22 albertel 1792: sub error {
1.454 albertel 1793: my @errors = @_;
1794:
1.336 albertel 1795: $errorcount++;
1.454 albertel 1796:
1797: if (defined($Apache::inputtags::part)) {
1798: if ( @Apache::inputtags::response ) {
1799: push(@errors,
1800: &mt("This error occurred while processing response [_1] in part [_2]",
1801: $Apache::inputtags::response[-1],
1802: $Apache::inputtags::part));
1803: } else {
1804: push(@errors,
1805: &mt("This error occurred while processing part [_1]",
1806: $Apache::inputtags::part));
1807: }
1808: }
1809:
1.348 albertel 1810: if ( &show_error_warn_msg() ) {
1.336 albertel 1811: # If printing in construction space, put the error inside <pre></pre>
1812: push(@Apache::lonxml::error_messages,
1813: $Apache::lonxml::warnings_error_header.
1.454 albertel 1814: "<b>ERROR:</b>".join("<br />\n",@errors)."<br />\n");
1.336 albertel 1815: $Apache::lonxml::warnings_error_header='';
1816: } else {
1817: my $errormsg;
1818: my ($symb)=&Apache::lonnet::symbread();
1819: if ( !$symb ) {
1820: #public or browsers
1821: $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
1.403 albertel 1822: }
1.413 albertel 1823: my $host=$Apache::lonnet::perlvar{'lonHostID'};
1.454 albertel 1824: push(@errors, "The error occurred on host <tt>$host</tt>");
1825:
1826: my $msg = join('<br />', @errors);
1827:
1.336 albertel 1828: #notify author
1.403 albertel 1829: &Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
1.336 albertel 1830: #notify course
1.372 albertel 1831: if ( $symb && $env{'request.course.id'} ) {
1.380 www 1832: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1833: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.440 albertel 1834: my (undef,%users)=&Apache::lonmsg::decide_receiver(undef,0,1,1,1);
1.372 albertel 1835: my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
1.435 raeburn 1836: my $baseurl = &Apache::lonnet::clutter($declutter);
1.336 albertel 1837: my @userlist;
1838: foreach (keys %users) {
1839: my ($user,$domain) = split(/:/, $_);
1840: push(@userlist,"$user\@$domain");
1.380 www 1841: my $key=$declutter.'_'.$user.'_'.$domain;
1842: my %lastnotified=&Apache::lonnet::get('nohist_xmlerrornotifications',
1843: [$key],
1844: $cdom,$cnum);
1845: my $now=time;
1846: if ($now-$lastnotified{$key}>86400) {
1.434 raeburn 1847: my $title = &Apache::lonnet::gettitle($symb);
1848: my $sentmessage;
1.380 www 1849: &Apache::lonmsg::user_normal_msg($user,$domain,
1.435 raeburn 1850: "Error [$title]",$msg,'',$baseurl,'','',
1.434 raeburn 1851: \$sentmessage,$symb,$title,1);
1.380 www 1852: &Apache::lonnet::put('nohist_xmlerrornotifications',
1853: {$key => $now},
1854: $cdom,$cnum);
1855: }
1.336 albertel 1856: }
1.372 albertel 1857: if ($env{'request.role.adv'}) {
1.336 albertel 1858: $errormsg=&mt("An error occured while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
1859: } else {
1860: $errormsg=&mt("An error occured while processing this resource. The instructor has been notified.");
1861: }
1862: }
1863: push(@Apache::lonxml::error_messages,"<b>$errormsg</b> <br />");
1.52 albertel 1864: }
1.22 albertel 1865: }
1.49 albertel 1866:
1.22 albertel 1867: sub warning {
1.295 albertel 1868: $warningcount++;
1.261 albertel 1869:
1.372 albertel 1870: if ($env{'form.grade_target'} ne 'tex') {
1.348 albertel 1871: if ( &show_error_warn_msg() ) {
1.309 albertel 1872: push(@Apache::lonxml::warning_messages,
1873: $Apache::lonxml::warnings_error_header.
1874: "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n");
1.295 albertel 1875: $Apache::lonxml::warnings_error_header='';
1876: }
1877: }
1.309 albertel 1878: }
1879:
1880: sub info {
1.372 albertel 1881: if ($env{'form.grade_target'} ne 'tex'
1882: && $env{'request.state'} eq 'construct') {
1.309 albertel 1883: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
1884: }
1885: }
1886:
1887: sub message_location {
1888: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
1889: }
1890:
1891: sub add_messages {
1892: my ($msg)=@_;
1893: my $result=join(' ',
1894: @Apache::lonxml::info_messages,
1895: @Apache::lonxml::error_messages,
1896: @Apache::lonxml::warning_messages);
1897: undef(@Apache::lonxml::info_messages);
1898: undef(@Apache::lonxml::error_messages);
1899: undef(@Apache::lonxml::warning_messages);
1900: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
1901: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
1.83 albertel 1902: }
1903:
1904: sub get_param {
1.213 albertel 1905: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1906: if ( ! $context ) { $context = -1; }
1907: my $args ='';
1908: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1909: if ( ! $Apache::lonxml::usestyle ) {
1910: $args=$Apache::lonxml::style_values.$args;
1911: }
1.213 albertel 1912: if ( ! $args ) { return undef; }
1913: if ( $case_insensitive ) {
1.417 albertel 1914: if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
1.213 albertel 1915: return &Apache::run::run("{$args;".'return $'.$param.'}',
1916: $safeeval); #'
1917: } else {
1918: return undef;
1919: }
1920: } else {
1.417 albertel 1921: if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
1.213 albertel 1922: return &Apache::run::run("{$args;".'return $'.$param.'}',
1923: $safeeval); #'
1924: } else {
1925: return undef;
1926: }
1927: }
1.22 albertel 1928: }
1929:
1.132 albertel 1930: sub get_param_var {
1.213 albertel 1931: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 1932: if ( ! $context ) { $context = -1; }
1933: my $args ='';
1934: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1935: if ( ! $Apache::lonxml::usestyle ) {
1936: $args=$Apache::lonxml::style_values.$args;
1937: }
1.230 albertel 1938: &Apache::lonxml::debug("Args are $args param is $param");
1.213 albertel 1939: if ($case_insensitive) {
1.419 albertel 1940: if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
1.213 albertel 1941: return undef;
1942: }
1.419 albertel 1943: } elsif ( $args !~ /my .*\$\Q$param\E[,\)]/ ) { return undef; }
1.132 albertel 1944: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.230 albertel 1945: &Apache::lonxml::debug("first run is $value");
1.341 albertel 1946: if ($value =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
1.230 albertel 1947: &Apache::lonxml::debug("doing second");
1948: my @result=&Apache::run::run("return $value",$safeeval,1);
1949: if (!defined($result[0])) {
1950: return $value
1951: } else {
1952: if (wantarray) { return @result; } else { return $result[0]; }
1953: }
1.132 albertel 1954: } else {
1955: return $value;
1956: }
1957: }
1958:
1.438 albertel 1959: sub register_insert_xml {
1960: my $parser = HTML::LCParser->new($Apache::lonnet::perlvar{'lonTabDir'}
1961: .'/insertlist.xml');
1962: my ($tagnum,$in_help)=(0,0);
1.442 albertel 1963: my @alltags;
1.438 albertel 1964: my $tag;
1965: while (my $token = $parser->get_token()) {
1966: if ($token->[0] eq 'S') {
1967: my $key;
1968: if ($token->[1] eq 'tag') {
1969: $tag = $token->[2]{'name'};
1970: $insertlist{"$tagnum.tag"} = $tag;
1971: $insertlist{"$tag.num"} = $tagnum;
1.442 albertel 1972: push(@alltags,$tag);
1.438 albertel 1973: } elsif ($in_help && $token->[1] eq 'file') {
1974: $key = $tag.'.helpfile';
1975: } elsif ($in_help && $token->[1] eq 'description') {
1976: $key = $tag.'.helpdesc';
1977: } elsif ($token->[1] eq 'description' ||
1978: $token->[1] eq 'color' ||
1979: $token->[1] eq 'show' ) {
1980: $key = $tag.'.'.$token->[1];
1981: } elsif ($token->[1] eq 'insert_sub') {
1982: $key = $tag.'.function';
1983: } elsif ($token->[1] eq 'help') {
1984: $in_help=1;
1985: } elsif ($token->[1] eq 'allow') {
1.442 albertel 1986: $key = $tag.'.allow';
1.438 albertel 1987: }
1988: if (defined($key)) {
1989: $insertlist{$key} = $parser->get_text();
1990: $insertlist{$key} =~ s/(^\s*|\s*$ )//gx;
1991: }
1992: } elsif ($token->[0] eq 'E') {
1993: if ($token->[1] eq 'tag') {
1994: undef($tag);
1995: $tagnum++;
1996: } elsif ($token->[1] eq 'help') {
1997: undef($in_help);
1998: }
1999: }
2000: }
1.442 albertel 2001:
2002: # parse the allows and ignore tags set to <show>no</show>
2003: foreach my $tag (@alltags) {
1.445 albertel 2004: next if (!exists($insertlist{"$tag.allow"}));
1.442 albertel 2005: my $allow = $insertlist{"$tag.allow"};
2006: foreach my $element (split(',',$allow)) {
2007: $element =~ s/(^\s*|\s*$ )//gx;
1.446 albertel 2008: if (!exists($insertlist{"$element.show"})
2009: || $insertlist{"$element.show"} ne 'no') {
1.442 albertel 2010: push(@{ $insertlist{$tag.'.which'} },$element);
2011: }
2012: }
2013: }
1.438 albertel 2014: }
2015:
2016: sub register_insert {
2017: return ®ister_insert_xml(@_);
2018: # &dump_insertlist('2');
2019: }
2020:
2021: sub dump_insertlist {
2022: my ($ext) = @_;
2023: open(XML,">/tmp/insertlist.xml.$ext");
2024: print XML ("<insertlist>");
2025: my $i=0;
2026:
2027: while (exists($insertlist{"$i.tag"})) {
2028: my $tag = $insertlist{"$i.tag"};
2029: print XML ("
2030: \t<tag name=\"$tag\">");
2031: if (defined($insertlist{"$tag.description"})) {
2032: print XML ("
2033: \t\t<description>".$insertlist{"$tag.description"}."</description>");
2034: }
2035: if (defined($insertlist{"$tag.color"})) {
2036: print XML ("
2037: \t\t<color>".$insertlist{"$tag.color"}."</color>");
2038: }
2039: if (defined($insertlist{"$tag.function"})) {
2040: print XML ("
2041: \t\t<insert_sub>".$insertlist{"$tag.function"}."</insert_sub>");
2042: }
2043: if (defined($insertlist{"$tag.show"})
2044: && $insertlist{"$tag.show"} ne 'yes') {
2045: print XML ("
2046: \t\t<show>".$insertlist{"$tag.show"}."</show>");
2047: }
2048: if (defined($insertlist{"$tag.helpfile"})) {
2049: print XML ("
2050: \t\t<help>
2051: \t\t\t<file>".$insertlist{"$tag.helpfile"}."</file>");
2052: if ($insertlist{"$tag.helpdesc"} ne '') {
2053: print XML ("
2054: \t\t\t<description>".$insertlist{"$tag.helpdesc"}."</description>");
2055: }
2056: print XML ("
2057: \t\t</help>");
2058: }
2059: if (defined($insertlist{"$tag.which"})) {
2060: print XML ("
2061: \t\t<allow>".join(',',sort(@{ $insertlist{"$tag.which"} }))."</allow>");
2062: }
2063: print XML ("
2064: \t</tag>");
2065: $i++;
2066: }
2067: print XML ("\n</insertlist>\n");
2068: close(XML);
2069: }
2070:
1.98 albertel 2071: sub description {
1.437 albertel 2072: my ($token)=@_;
2073: my $tag = &get_tag($token);
2074: return $insertlist{$tag.'.description'};
1.268 bowersj2 2075: }
2076:
2077: # Returns a list containing the help file, and the description
2078: sub helpinfo {
1.437 albertel 2079: my ($token)=@_;
2080: my $tag = &get_tag($token);
2081: return ($insertlist{$tag.'.helpfile'}, $insertlist{$tag.'.helpdesc'});
2082: }
2083:
2084: sub get_tag {
2085: my ($token)=@_;
2086: my $tagnum;
2087: my $tag=$token->[1];
2088: foreach my $namespace (reverse(@Apache::lonxml::namespace)) {
2089: my $testtag = $namespace.'::'.$tag;
2090: $tagnum = $insertlist{"$testtag.num"};
2091: last if (defined($tagnum));
2092: }
2093: if (!defined($tagnum)) {
2094: $tagnum = $Apache::lonxml::insertlist{"$tag.num"};
2095: }
2096: return $insertlist{"$tagnum.tag"};
1.98 albertel 2097: }
1.123 albertel 2098:
1.1 sakharuk 2099: 1;
2100: __END__
1.68 www 2101:
2102:
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