Annotation of loncom/xml/lonxml.pm, revision 1.516
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.516 ! raeburn 4: # $Id: lonxml.pm,v 1.515 2010/09/29 15:47:21 raeburn 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:
1.489 jms 40: =pod
41:
42: =head1 NAME
43:
44: Apache::lonxml
45:
46: =head1 SYNOPSIS
47:
48: XML Parsing Module
49:
50: This is part of the LearningOnline Network with CAPA project
51: described at http://www.lon-capa.org.
52:
53:
54: =head1 SUBROUTINES
55:
56: =cut
57:
58:
1.2 sakharuk 59:
1.4 albertel 60: package Apache::lonxml;
1.33 www 61: use vars
1.410 albertel 62: qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount);
1.1 sakharuk 63: use strict;
1.444 albertel 64: use LONCAPA;
1.167 albertel 65: use HTML::LCParser();
1.161 albertel 66: use HTML::TreeBuilder();
67: use HTML::Entities();
68: use Safe();
69: use Safe::Hole();
70: use Math::Cephes();
71: use Math::Random();
72: use Opcode();
1.271 www 73: use POSIX qw(strftime);
1.339 albertel 74: use Time::HiRes qw( gettimeofday tv_interval );
1.393 albertel 75: use Symbol();
1.266 bowersj2 76:
1.72 albertel 77: sub register {
1.141 albertel 78: my ($space,@taglist) = @_;
79: foreach my $temptag (@taglist) {
80: push(@{ $Apache::lonxml::alltags{$temptag} },$space);
1.72 albertel 81: }
82: }
83:
1.141 albertel 84: sub deregister {
85: my ($space,@taglist) = @_;
86: foreach my $temptag (@taglist) {
87: my $tempspace = $Apache::lonxml::alltags{$temptag}[-1];
88: if ($tempspace eq $space) {
89: pop(@{ $Apache::lonxml::alltags{$temptag} });
90: }
91: }
1.142 albertel 92: #&printalltags();
1.141 albertel 93: }
94:
1.46 www 95: use Apache::Constants qw(:common);
1.161 albertel 96: use Apache::lontexconvert();
97: use Apache::style();
98: use Apache::run();
99: use Apache::londefdef();
100: use Apache::scripttag();
1.285 www 101: use Apache::languagetags();
1.161 albertel 102: use Apache::edit();
1.266 bowersj2 103: use Apache::inputtags();
104: use Apache::outputtags();
1.372 albertel 105: use Apache::lonnet;
1.161 albertel 106: use Apache::File();
107: use Apache::loncommon();
1.198 www 108: use Apache::lonfeedback();
1.200 www 109: use Apache::lonmsg();
1.217 matthew 110: use Apache::loncacc();
1.431 www 111: use Apache::lonmaxima();
1.494 www 112: use Apache::lonr();
1.280 www 113: use Apache::lonlocal;
1.501 raeburn 114: use Apache::lonhtmlcommon();
1.79 www 115:
1.462 foxr 116: #==================================== Main subroutine: xmlparse
117:
1.72 albertel 118: #debugging control, to turn on debugging modify the correct handler
1.462 foxr 119:
1.72 albertel 120: $Apache::lonxml::debug=0;
1.206 albertel 121:
122: # keeps count of the number of warnings and errors generated in a parse
123: $warningcount=0;
124: $errorcount=0;
1.72 albertel 125:
126: #path to the directory containing the file currently being processed
127: @pwd=();
128:
129: #these two are used for capturing a subset of the output for later processing,
130: #don't touch them directly use &startredirection and &endredirection
131: @outputstack = ();
132: $redirection = 0;
133:
134: #controls wheter the <import> tag actually does
135: $import = 1;
136: @extlinks=();
137:
138: # meta mode is a bit weird only some output is to be turned off
139: #<output> tag turns metamode off (defined in londefdef.pm)
140: $metamode = 0;
141:
142: # turns on and of run::evaluate actually derefencing var refs
143: $evaluate = 1;
1.7 albertel 144:
1.74 albertel 145: # data structure for eidt mode, determines what tags can go into what other tags
146: %insertlist=();
1.68 www 147:
1.99 albertel 148: # stores the list of active tag namespaces
1.76 albertel 149: @namespace=();
150:
1.448 albertel 151: # stores all Scrit Vars displays for later showing
152: my @script_var_displays=();
153:
1.172 albertel 154: # a pointer the the Apache request object
155: $Apache::lonxml::request='';
156:
1.216 sakharuk 157: # a problem number counter, and check on ether it is used
1.237 sakharuk 158: $Apache::lonxml::counter=1;
1.204 albertel 159: $Apache::lonxml::counter_changed=0;
160:
1.462 foxr 161: # Part counter hash. In analysis mode, the
162: # problems can use this to record which parts increment the counter
163: # by how much. The counter subs will maintain this hash via
164: # their optional part parameters. Note that the assumption is that
165: # analysis is done in one request and therefore it is not necessary to
166: # save this information request-to-request.
167:
168:
169: %Apache::lonxml::counters_per_part = ();
170:
1.212 albertel 171: #internal check on whether to look at style defs
172: $Apache::lonxml::usestyle=1;
1.260 albertel 173:
174: #locations used to store the parameter string for style substitutions
175: $Apache::lonxml::style_values='';
176: $Apache::lonxml::style_end_values='';
1.212 albertel 177:
1.281 albertel 178: #array of ssi calls that need to occur after we are done parsing
179: @Apache::lonxml::ssi_info=();
180:
1.282 albertel 181: #should we do the postag variable interpolation
182: $Apache::lonxml::post_evaluate=1;
183:
1.295 albertel 184: #a header message to emit in the case of any generated warning or errors
185: $Apache::lonxml::warnings_error_header='';
186:
1.396 foxr 187: # Control whether or not LaTeX symbols should be substituted for their
188: # \ style equivalents...this may be turned off e.g. in an verbatim
189: # environment.
190:
191: $Apache::lonxml::substitute_LaTeX_symbols = 1; # Starts out on.
192:
193: sub enable_LaTeX_substitutions {
194: $Apache::lonxml::substitute_LaTeX_symbols = 1;
195: }
196: sub disable_LaTeX_substitutions {
197: $Apache::lonxml::substitute_LaTeX_symbols = 0;
198: }
199:
1.68 www 200: sub xmlend {
1.335 sakharuk 201: my ($target,$parser)=@_;
1.278 www 202: my $mode='xml';
203: my $status='OPEN';
1.368 albertel 204: if ($Apache::lonhomework::parsing_a_problem ||
205: $Apache::lonhomework::parsing_a_task ) {
1.278 www 206: $mode='problem';
207: $status=$Apache::inputtags::status[-1];
208: }
1.362 matthew 209: my $discussion;
1.379 albertel 210: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
211: ['LONCAPA_INTERNAL_no_discussion']);
1.372 albertel 212: if (! exists($env{'form.LONCAPA_INTERNAL_no_discussion'}) ||
213: $env{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true') {
1.362 matthew 214: $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
215: }
1.334 sakharuk 216: if ($target eq 'tex') {
1.335 sakharuk 217: $discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
1.334 sakharuk 218: &Apache::lonxml::newparser($parser,\$discussion,'');
219: return '';
220: }
1.405 albertel 221:
1.407 albertel 222: return $discussion;
1.119 www 223: }
224:
1.48 albertel 225: sub printalltags {
226: my $temp;
227: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.141 albertel 228: &Apache::lonxml::debug("$temp -- ".
229: join(',',@{ $Apache::lonxml::alltags{$temp} }));
1.48 albertel 230: }
231: }
1.31 sakharuk 232:
1.3 sakharuk 233: sub xmlparse {
1.172 albertel 234: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 235:
1.172 albertel 236: &setup_globals($request,$target);
1.232 albertel 237: &Apache::inputtags::initialize_inputtags();
1.370 albertel 238: &Apache::bridgetask::initialize_bridgetask();
1.232 albertel 239: &Apache::outputtags::initialize_outputtags();
240: &Apache::edit::initialize_edit();
1.287 albertel 241: &Apache::londefdef::initialize_londefdef();
1.244 albertel 242:
1.178 www 243: #
244: # do we have a course style file?
245: #
246:
1.372 albertel 247: if ($env{'request.course.id'} && $env{'request.state'} ne 'construct') {
1.178 www 248: my $bodytext=
1.372 albertel 249: $env{'course.'.$env{'request.course.id'}.'.default_xml_style'};
1.178 www 250: if ($bodytext) {
1.337 albertel 251: foreach my $file (split(',',$bodytext)) {
252: my $location=&Apache::lonnet::filelocation('',$file);
253: my $styletext=&Apache::lonnet::getfile($location);
254: if ($styletext ne '-1') {
255: %style_for_target = (%style_for_target,
256: &Apache::style::styleparser($target,$styletext));
257: }
258: }
259: }
1.449 albertel 260: } elsif ($env{'construct.style'}
261: && ($env{'request.state'} eq 'construct')) {
1.372 albertel 262: my $location=&Apache::lonnet::filelocation('',$env{'construct.style'});
1.291 sakharuk 263: my $styletext=&Apache::lonnet::getfile($location);
1.449 albertel 264: if ($styletext ne '-1') {
265: %style_for_target = (%style_for_target,
266: &Apache::style::styleparser($target,$styletext));
267: }
1.178 www 268: }
1.255 sakharuk 269: #&printalltags();
1.16 albertel 270: my @pars = ();
1.372 albertel 271: my $pwd=$env{'request.filename'};
1.23 albertel 272: $pwd =~ s:/[^/]*$::;
273: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 274:
1.3 sakharuk 275: my $safeeval = new Safe;
1.40 albertel 276: my $safehole = new Safe::Hole;
1.82 ng 277: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 278: #-------------------- Redefinition of the target in the case of compound target
279:
280: ($target, my @tenta) = split('&&',$target);
281:
1.150 albertel 282: my @stack = ();
1.3 sakharuk 283: my @parstack = ();
1.358 albertel 284: &initdepth();
285: &init_alarm();
1.101 albertel 286: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
1.394 albertel 287: $safeeval,\%style_for_target,1);
1.255 sakharuk 288:
1.425 albertel 289: if (@stack) {
1.482 bisitz 290: &warning(&mt('At end of file some tags were still left unclosed:').
291: ' <tt><'.join('></tt>, <tt><',reverse(@stack)).
1.425 albertel 292: '></tt>');
293: }
1.372 albertel 294: if ($env{'request.uri'}) {
295: &writeallows($env{'request.uri'});
1.125 www 296: }
1.281 albertel 297: &do_registered_ssi();
1.204 albertel 298: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.393 albertel 299:
300: &clean_safespace($safeeval);
301:
1.448 albertel 302: if (@script_var_displays) {
303: $finaloutput .= join('',@script_var_displays);
304: undef(@script_var_displays);
305: }
1.469 albertel 306: &init_state();
1.372 albertel 307: if ($env{'form.return_only_error_and_warning_counts'}) {
1.473 www 308: if ($env{'request.filename'}=~/\.(html|htm|xml)$/i) {
309: my $error=&verify_html($content_file_string);
310: if ($error) { $errorcount++; }
311: }
1.361 www 312: return "$errorcount:$warningcount";
313: }
1.3 sakharuk 314: return $finaloutput;
1.106 www 315: }
316:
1.191 albertel 317: sub latex_special_symbols {
1.272 albertel 318: my ($string,$where)=@_;
1.396 foxr 319: #
320: # If e.g. in verbatim mode, then don't substitute.
321: # but return original string.
322: #
323: if (!($Apache::lonxml::substitute_LaTeX_symbols)) {
324: return $string;
325: }
1.235 sakharuk 326: if ($where eq 'header') {
1.414 foxr 327: $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10.
1.311 albertel 328: $string =~ s/(\$|%|\{|\})/\\$1/g;
329: $string=&Apache::lonprintout::character_chart($string);
330: # any & or # leftover should be safe to just escape
331: $string=~s/([^\\])\&/$1\\\&/g;
332: $string=~s/([^\\])\#/$1\\\#/g;
1.415 foxr 333: $string =~ s/_/\\_/g; # _ -> \_
334: $string =~ s/\^/\\\^{}/g; # ^ -> \^{}
1.229 sakharuk 335: } else {
1.312 albertel 336: $string=~s/\\/\\ensuremath{\\backslash}/g;
1.367 albertel 337: $string=~s/\\\%|\%/\\\%/g;
338: $string=~s/\\{|{/\\{/g;
339: $string=~s/\\}|}/\\}/g;
1.378 albertel 340: $string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
1.367 albertel 341: $string=~s/\\\$|\$/\\\$/g;
342: $string=~s/\\\_|\_/\\\_/g;
1.313 albertel 343: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
1.310 sakharuk 344: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
1.311 albertel 345: $string=&Apache::lonprintout::character_chart($string);
346: # any & or # leftover should be safe to just escape
1.367 albertel 347: $string=~s/\\\&|\&/\\\&/g;
348: $string=~s/\\\#|\#/\\\#/g;
1.332 sakharuk 349: $string=~s/\|/\$\\mid\$/g;
1.310 sakharuk 350: #single { or } How to escape?
1.229 sakharuk 351: }
1.272 albertel 352: return $string;
1.188 sakharuk 353: }
354:
1.101 albertel 355: sub inner_xmlparse {
1.394 albertel 356: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target,$start)=@_;
1.101 albertel 357: my $finaloutput = '';
358: my $result;
359: my $token;
1.258 albertel 360: my $dontpop=0;
1.389 albertel 361: my $startredirection = $Apache::lonxml::redirection;
1.101 albertel 362: while ( $#$pars > -1 ) {
363: while ($token = $$pars['-1']->get_token) {
1.261 albertel 364: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
1.101 albertel 365: if ($metamode<1) {
1.190 albertel 366: my $text=$token->[1];
1.193 albertel 367: if ($token->[0] eq 'C' && $target eq 'tex') {
1.239 sakharuk 368: $text = '';
369: # $text = '%'.$text."\n";
1.182 sakharuk 370: }
1.190 albertel 371: $result.=$text;
1.101 albertel 372: }
1.261 albertel 373: } elsif (($token->[0] eq 'D')) {
374: if ($metamode<1 && $target eq 'web') {
375: my $text=$token->[1];
376: $result.=$text;
377: }
1.101 albertel 378: } elsif ($token->[0] eq 'PI') {
1.261 albertel 379: if ($metamode<1 && $target eq 'web') {
1.101 albertel 380: $result=$token->[2];
381: }
382: } elsif ($token->[0] eq 'S') {
1.140 albertel 383: # add tag to stack
1.101 albertel 384: push (@$stack,$token->[1]);
385: # add parameters list to another stack
386: push (@$parstack,&parstring($token));
1.140 albertel 387: &increasedepth($token);
1.212 albertel 388: if ($Apache::lonxml::usestyle &&
389: exists($$style_for_target{$token->[1]})) {
390: $Apache::lonxml::usestyle=0;
391: my $string=$$style_for_target{$token->[1]}.
392: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
393: &Apache::lonxml::newparser($pars,\$string);
1.257 albertel 394: $Apache::lonxml::style_values=$$parstack[-1];
1.259 albertel 395: $Apache::lonxml::style_end_values=$$parstack[-1];
1.101 albertel 396: } else {
397: $result = &callsub("start_$token->[1]", $target, $token, $stack,
398: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 399: }
1.101 albertel 400: } elsif ($token->[0] eq 'E') {
1.212 albertel 401: if ($Apache::lonxml::usestyle &&
402: exists($$style_for_target{'/'."$token->[1]"})) {
403: $Apache::lonxml::usestyle=0;
404: my $string=$$style_for_target{'/'.$token->[1]}.
1.258 albertel 405: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
1.212 albertel 406: &Apache::lonxml::newparser($pars,\$string);
1.259 albertel 407: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
408: $Apache::lonxml::style_end_values='';
1.258 albertel 409: $dontpop=1;
1.101 albertel 410: } else {
1.258 albertel 411: #clear out any tags that didn't end
412: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
413: my $lasttag=$$stack[-1];
1.317 albertel 414: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
1.483 bisitz 415: &Apache::lonxml::warning(&mt('Using tag [_1] on line [_2] as end tag to [_3]','</'.$token->[1].'>','.$token->[3].','<'.$$stack[-1].'>'));
1.258 albertel 416: last;
417: } else {
1.483 bisitz 418: &Apache::lonxml::warning(&mt('Found tag [_1] on line [_2] when looking for [_3] in file.','</'.$token->[1].'>',$token->[3],'</'.$$stack[-1].'>'));
1.258 albertel 419: &end_tag($stack,$parstack,$token);
420: }
421: }
422: $result = &callsub("end_$token->[1]", $target, $token, $stack,
423: $parstack, $pars,$safeeval, $style_for_target);
1.101 albertel 424: }
425: } else {
426: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
427: }
428: #evaluate variable refs in result
1.282 albertel 429: if ($Apache::lonxml::post_evaluate &&$result ne "") {
1.257 albertel 430: my $extras;
431: if (!$Apache::lonxml::usestyle) {
432: $extras=$Apache::lonxml::style_values;
433: }
1.488 raeburn 434: if ( $#$parstack > -1 ) {
435: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
436: } else {
437: $result= &Apache::run::evaluate($result,$safeeval,$extras);
1.487 raeburn 438: }
1.163 albertel 439: }
1.282 albertel 440: $Apache::lonxml::post_evaluate=1;
441:
1.190 albertel 442: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
1.249 albertel 443: #Style file definitions should be correct
1.250 albertel 444: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
1.311 albertel 445: $result=&latex_special_symbols($result);
1.249 albertel 446: }
1.190 albertel 447: }
448:
1.169 albertel 449: if ($Apache::lonxml::redirection) {
450: $Apache::lonxml::outputstack['-1'] .= $result;
451: } else {
452: $finaloutput.=$result;
453: }
454: $result = '';
455:
1.258 albertel 456: if ($token->[0] eq 'E' && !$dontpop) {
1.101 albertel 457: &end_tag($stack,$parstack,$token);
458: }
1.258 albertel 459: $dontpop=0;
1.224 albertel 460: }
1.212 albertel 461: if ($#$pars > -1) {
462: pop @$pars;
463: pop @Apache::lonxml::pwd;
464: }
1.101 albertel 465: }
466:
467: # if ($target eq 'meta') {
468: # $finaloutput.=&endredirection;
469: # }
470:
1.394 albertel 471: if ( $start && $target eq 'grade') { &endredirection(); }
1.389 albertel 472: if ( $Apache::lonxml::redirection > $startredirection) {
473: while ($Apache::lonxml::redirection > $startredirection) {
474: $finaloutput .= &endredirection();
1.387 albertel 475: }
476: }
1.101 albertel 477: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
478: $finaloutput=&afterburn($finaloutput);
1.509 www 479: }
480: if ($target eq 'modified') {
481: # if modfied, handle startpart and endpart
482: $finaloutput=~s/\<startpartmarker[^\>]*\>(.*)\<endpartmarker[^\>]*\>/<part>$1<\/part>/gs;
1.216 sakharuk 483: }
1.101 albertel 484: return $finaloutput;
485: }
1.67 www 486:
1.318 matthew 487: ##
488: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
489: ## otherwise do not call it as we do not know what it is.
490: ##
1.7 albertel 491: sub callsub {
1.84 albertel 492: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 493: my $currentstring='';
1.72 albertel 494: my $nodefault;
1.7 albertel 495: {
1.59 albertel 496: my $sub1;
1.7 albertel 497: no strict 'refs';
1.68 www 498: my $tag=$token->[1];
1.236 www 499: # get utterly rid of extended html tags
500: if ($tag=~/^x\-/i) { return ''; }
1.141 albertel 501: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 502: if (!$space) {
1.141 albertel 503: $tag=~tr/A-Z/a-z/;
1.68 www 504: $sub=~tr/A-Z/a-z/;
1.141 albertel 505: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 506: }
1.97 albertel 507:
508: my $deleted=0;
509: if (($token->[0] eq 'S') && ($target eq 'modified')) {
510: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
511: $parstack,$parser,$safeeval,
512: $style);
513: }
514: if (!$deleted) {
515: if ($space) {
1.220 albertel 516: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 517: $sub1="$space\:\:$sub";
518: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
519: $parstack,$parser,$safeeval,
520: $style);
521: } else {
1.318 matthew 522: if ($target eq 'tex') {
523: # throw away tag name
524: return '';
525: }
1.220 albertel 526: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 527: if ($metamode <1) {
528: if (defined($token->[4]) && ($metamode < 1)) {
529: $currentstring = $token->[4];
530: } else {
531: $currentstring = $token->[2];
532: }
1.62 sakharuk 533: }
1.7 albertel 534: }
1.97 albertel 535: # &Apache::lonxml::debug("nodefalt:$nodefault:");
536: if ($currentstring eq '' && $nodefault eq '') {
537: if ($target eq 'edit') {
1.220 albertel 538: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 539: if ($token->[0] eq 'S') {
540: $currentstring = &Apache::edit::tag_start($target,$token);
541: } elsif ($token->[0] eq 'E') {
542: $currentstring = &Apache::edit::tag_end($target,$token);
543: }
1.441 albertel 544: }
545: }
546: if ($target eq 'modified' && $nodefault eq '') {
547: if ($currentstring eq '') {
548: if ($token->[0] eq 'S') {
549: $currentstring = $token->[4];
550: } elsif ($token->[0] eq 'E') {
551: $currentstring = $token->[2];
552: } else {
553: $currentstring = $token->[2];
554: }
555: }
1.97 albertel 556: if ($token->[0] eq 'S') {
1.447 albertel 557: $currentstring.=&Apache::edit::handle_insert();
1.210 www 558: } elsif ($token->[0] eq 'E') {
1.447 albertel 559: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 560: }
1.72 albertel 561: }
1.7 albertel 562: }
563: use strict 'refs';
564: }
565: return $currentstring;
1.82 ng 566: }
567:
1.465 albertel 568: {
569: my %state;
570:
571: sub init_state {
572: undef(%state);
573: }
574:
575: sub set_state {
576: my ($key,$value) = @_;
577: $state{$key} = $value;
578: return $value;
579: }
580: sub get_state {
581: my ($key) = @_;
582: return $state{$key};
583: }
584: }
585:
1.96 albertel 586: sub setup_globals {
1.172 albertel 587: my ($request,$target)=@_;
588: $Apache::lonxml::request=$request;
1.205 www 589: $errorcount=0;
590: $warningcount=0;
1.490 www 591: $Apache::lonxml::internal_error=0;
1.207 albertel 592: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 593: $Apache::lonxml::usestyle=1;
1.204 albertel 594: &init_counter();
1.462 foxr 595: &clear_bubble_lines_for_part();
1.465 albertel 596: &init_state();
1.469 albertel 597: &set_state('target',$target);
1.101 albertel 598: @Apache::lonxml::pwd=();
1.124 albertel 599: @Apache::lonxml::extlinks=();
1.448 albertel 600: @script_var_displays=();
1.281 albertel 601: @Apache::lonxml::ssi_info=();
1.282 albertel 602: $Apache::lonxml::post_evaluate=1;
1.295 albertel 603: $Apache::lonxml::warnings_error_header='';
1.397 albertel 604: $Apache::lonxml::substitute_LaTeX_symbols = 1;
1.96 albertel 605: if ($target eq 'meta') {
606: $Apache::lonxml::redirection = 0;
607: $Apache::lonxml::metamode = 1;
608: $Apache::lonxml::evaluate = 1;
609: $Apache::lonxml::import = 0;
1.129 albertel 610: } elsif ($target eq 'answer') {
611: $Apache::lonxml::redirection = 0;
612: $Apache::lonxml::metamode = 1;
613: $Apache::lonxml::evaluate = 1;
614: $Apache::lonxml::import = 1;
1.96 albertel 615: } elsif ($target eq 'grade') {
1.387 albertel 616: &startredirection(); #ended in inner_xmlparse on exit
1.96 albertel 617: $Apache::lonxml::metamode = 0;
618: $Apache::lonxml::evaluate = 1;
619: $Apache::lonxml::import = 1;
620: } elsif ($target eq 'modified') {
621: $Apache::lonxml::redirection = 0;
622: $Apache::lonxml::metamode = 0;
623: $Apache::lonxml::evaluate = 0;
624: $Apache::lonxml::import = 0;
625: } elsif ($target eq 'edit') {
626: $Apache::lonxml::redirection = 0;
627: $Apache::lonxml::metamode = 0;
628: $Apache::lonxml::evaluate = 0;
629: $Apache::lonxml::import = 0;
1.163 albertel 630: } elsif ($target eq 'analyze') {
631: $Apache::lonxml::redirection = 0;
632: $Apache::lonxml::metamode = 0;
633: $Apache::lonxml::evaluate = 1;
634: $Apache::lonxml::import = 1;
1.96 albertel 635: } else {
636: $Apache::lonxml::redirection = 0;
637: $Apache::lonxml::metamode = 0;
638: $Apache::lonxml::evaluate = 1;
639: $Apache::lonxml::import = 1;
640: }
641: }
642:
1.82 ng 643: sub init_safespace {
644: my ($target,$safeeval,$safehole,$safeinit) = @_;
1.511 foxr 645: $safeeval->reval('use Math::Complex;');
646: $safeeval->reval('use LaTeX::Table;');
1.393 albertel 647: $safeeval->deny_only(':dangerous');
1.383 albertel 648: $safeeval->permit_only(":default");
1.82 ng 649: $safeeval->permit("entereval");
650: $safeeval->permit(":base_math");
651: $safeeval->permit("sort");
1.286 albertel 652: $safeeval->permit("time");
1.480 www 653: $safeeval->permit("caller");
1.371 albertel 654: $safeeval->deny("rand");
655: $safeeval->deny("srand");
1.82 ng 656: $safeeval->deny(":base_io");
1.102 albertel 657: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.251 albertel 658: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
1.82 ng 659: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
1.324 albertel 660: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
661: '&chem_standard_order');
1.369 albertel 662: $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status');
1.471 bisitz 663: $safehole->wrap(\&Apache::response::implicit_multiplication,$safeeval,'&implicit_multiplication');
1.324 albertel 664:
1.431 www 665: $safehole->wrap(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval');
1.432 www 666: $safehole->wrap(\&Apache::lonmaxima::maxima_check,$safeeval,'&maxima_check');
1.433 albertel 667: $safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval,
668: '&maxima_cas_formula_fix');
669:
1.494 www 670: $safehole->wrap(\&Apache::lonr::r_eval,$safeeval,'&r_eval');
1.497 www 671: $safehole->wrap(\&Apache::lonr::Rentry,$safeeval,'&Rentry');
672: $safehole->wrap(\&Apache::lonr::Rarray,$safeeval,'&Rarray');
1.494 www 673: $safehole->wrap(\&Apache::lonr::r_check,$safeeval,'&r_check');
674: $safehole->wrap(\&Apache::lonr::r_cas_formula_fix,$safeeval,
675: '&r_cas_formula_fix');
676:
1.433 albertel 677: $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
678: '&capa_formula_fix');
1.431 www 679:
1.480 www 680: $safehole->wrap(\&Apache::lonlocal::locallocaltime,$safeeval,
681: '&locallocaltime');
682:
1.82 ng 683: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
684: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
685: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
686: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
687: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
688: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
689: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
690: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
691: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
692: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
693: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
694: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
695: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
696: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
697: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
698: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
699: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
700: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
701: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 702:
703: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
704: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
705: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
706: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
707: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
708: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
709: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
710: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
711: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
712: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
713: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
714: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
715: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
716: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
717: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
718: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
719: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
720: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
721: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
722: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
723: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
724: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
725:
1.383 albertel 726: $safehole->wrap(\&Math::Cephes::Matrix::mat,$safeeval,'&mat');
727: $safehole->wrap(\&Math::Cephes::Matrix::new,$safeeval,
728: '&Math::Cephes::Matrix::new');
729: $safehole->wrap(\&Math::Cephes::Matrix::coef,$safeeval,
730: '&Math::Cephes::Matrix::coef');
731: $safehole->wrap(\&Math::Cephes::Matrix::clr,$safeeval,
732: '&Math::Cephes::Matrix::clr');
733: $safehole->wrap(\&Math::Cephes::Matrix::add,$safeeval,
734: '&Math::Cephes::Matrix::add');
735: $safehole->wrap(\&Math::Cephes::Matrix::sub,$safeeval,
736: '&Math::Cephes::Matrix::sub');
737: $safehole->wrap(\&Math::Cephes::Matrix::mul,$safeeval,
738: '&Math::Cephes::Matrix::mul');
739: $safehole->wrap(\&Math::Cephes::Matrix::div,$safeeval,
740: '&Math::Cephes::Matrix::div');
741: $safehole->wrap(\&Math::Cephes::Matrix::inv,$safeeval,
742: '&Math::Cephes::Matrix::inv');
743: $safehole->wrap(\&Math::Cephes::Matrix::transp,$safeeval,
744: '&Math::Cephes::Matrix::transp');
745: $safehole->wrap(\&Math::Cephes::Matrix::simq,$safeeval,
746: '&Math::Cephes::Matrix::simq');
747: $safehole->wrap(\&Math::Cephes::Matrix::mat_to_vec,$safeeval,
748: '&Math::Cephes::Matrix::mat_to_vec');
749: $safehole->wrap(\&Math::Cephes::Matrix::vec_to_mat,$safeeval,
750: '&Math::Cephes::Matrix::vec_to_mat');
751: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
752: '&Math::Cephes::Matrix::check');
753: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
754: '&Math::Cephes::Matrix::check');
755:
1.215 albertel 756: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
757: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
758: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
759: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
760: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
761: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
762:
1.91 ng 763: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
764: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
765: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
766: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
767: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
768: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
769: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
770: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
771: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
772: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
773: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 774: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 775: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
776: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
777: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
778: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
779: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
780: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
781: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
782: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
783: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
1.458 albertel 784: $safehole->wrap(\&Apache::loncommon::languages,$safeeval,'&languages');
1.305 albertel 785: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
1.311 albertel 786: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
1.420 albertel 787: $safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
788: $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS');
1.322 albertel 789: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
1.430 albertel 790: # use Data::Dumper;
791: # $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper');
1.82 ng 792: #need to inspect this class of ops
793: # $safeeval->deny(":base_orig");
1.331 albertel 794: $safeeval->permit("require");
1.91 ng 795: $safeinit .= ';$external::target="'.$target.'";';
1.82 ng 796: &Apache::run::run($safeinit,$safeeval);
1.373 albertel 797: &initialize_rndseed($safeeval);
798: }
1.303 albertel 799:
1.393 albertel 800: sub clean_safespace {
801: my ($safeeval) = @_;
802: delete_package_recurse($safeeval->{Root});
803: }
804:
805: sub delete_package_recurse {
806: my ($package) = @_;
807: my @subp;
808: {
809: no strict 'refs';
810: while (my ($key,$val) = each(%{*{"$package\::"}})) {
811: if (!defined($val)) { next; }
812: local (*ENTRY) = $val;
813: if (defined *ENTRY{HASH} && $key =~ /::$/ &&
814: $key ne "main::" && $key ne "<none>::")
815: {
816: my ($p) = $package ne "main" ? "$package\::" : "";
817: ($p .= $key) =~ s/::$//;
818: push(@subp,$p);
819: }
820: }
821: }
822: foreach my $p (@subp) {
823: delete_package_recurse($p);
824: }
825: Symbol::delete_package($package);
826: }
827:
1.373 albertel 828: sub initialize_rndseed {
829: my ($safeeval)=@_;
830: my $rndseed;
1.423 albertel 831: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.373 albertel 832: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
833: my $safeinit = '$external::randomseed="'.$rndseed.'";';
834: &Apache::lonxml::debug("Setting rndseed to $rndseed");
835: &Apache::run::run($safeinit,$safeeval);
1.207 albertel 836: }
837:
838: sub default_homework_load {
839: my ($safeeval)=@_;
840: &Apache::lonxml::debug('Loading default_homework');
841: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
1.241 albertel 842: if ($default eq -1) {
1.207 albertel 843: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
844: } else {
845: &Apache::run::run($default,$safeeval);
846: $Apache::lonxml::default_homework_loaded=1;
847: }
1.17 albertel 848: }
849:
1.358 albertel 850: {
851: my $alarm_depth;
852: sub init_alarm {
853: alarm(0);
854: $alarm_depth=0;
855: }
856:
857: sub start_alarm {
858: if ($alarm_depth<1) {
859: my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'});
860: if ($old) {
861: &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur.");
862: }
863: }
864: $alarm_depth++;
865: }
866:
867: sub end_alarm {
868: $alarm_depth--;
869: if ($alarm_depth<1) { alarm(0); }
870: }
871: }
1.328 albertel 872: my $metamode_was;
1.55 albertel 873: sub startredirection {
1.328 albertel 874: if (!$Apache::lonxml::redirection) {
875: $metamode_was=$Apache::lonxml::metamode;
876: }
877: $Apache::lonxml::metamode=0;
878: $Apache::lonxml::redirection++;
879: push (@Apache::lonxml::outputstack, '');
1.55 albertel 880: }
881:
882: sub endredirection {
1.328 albertel 883: if (!$Apache::lonxml::redirection) {
1.380 www 884: &Apache::lonxml::error("Endredirection was called before a startredirection, perhaps you have unbalanced tags. Some debugging information:".join ":",caller);
1.328 albertel 885: return '';
886: }
887: $Apache::lonxml::redirection--;
888: if (!$Apache::lonxml::redirection) {
889: $Apache::lonxml::metamode=$metamode_was;
890: }
891: pop @Apache::lonxml::outputstack;
1.97 albertel 892: }
1.459 albertel 893: sub in_redirection {
894: return ($Apache::lonxml::redirection > 0)
895: }
1.97 albertel 896:
897: sub end_tag {
898: my ($tagstack,$parstack,$token)=@_;
899: pop(@$tagstack);
900: pop(@$parstack);
901: &decreasedepth($token);
1.55 albertel 902: }
903:
1.17 albertel 904: sub initdepth {
905: @Apache::lonxml::depthcounter=();
1.439 albertel 906: undef($Apache::lonxml::last_depth_count);
1.17 albertel 907: }
908:
1.438 albertel 909:
1.339 albertel 910: my @timers;
911: my $lasttime;
1.438 albertel 912: # @Apache::lonxml::depthcounter -> count of tags that exist so
913: # far at each level
1.439 albertel 914: # $Apache::lonxml::last_depth_count -> when ascending, need to
915: # remember the count for the level below the current level (for
916: # example going from 1_2 -> 1 -> 1_3 need to remember the 2 )
1.438 albertel 917:
1.17 albertel 918: sub increasedepth {
1.19 albertel 919: my ($token) = @_;
1.439 albertel 920: push(@Apache::lonxml::depthcounter,$Apache::lonxml::last_depth_count+1);
921: undef($Apache::lonxml::last_depth_count);
1.340 albertel 922: my $time;
923: if ($Apache::lonxml::debug eq "1") {
924: push(@timers,[&gettimeofday()]);
925: $time=&tv_interval($lasttime);
926: $lasttime=[&gettimeofday()];
927: }
1.439 albertel 928: my $spacing=' 'x($#Apache::lonxml::depthcounter);
1.438 albertel 929: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
1.439 albertel 930: # &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time");
1.54 albertel 931: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 932: }
933:
934: sub decreasedepth {
1.19 albertel 935: my ($token) = @_;
1.439 albertel 936: if ( $#Apache::lonxml::depthcounter == -1) {
937: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1.43 albertel 938: }
1.439 albertel 939: $Apache::lonxml::last_depth_count = pop(@Apache::lonxml::depthcounter);
940:
1.340 albertel 941: my ($timer,$time);
942: if ($Apache::lonxml::debug eq "1") {
943: $timer=pop(@timers);
944: $time=&tv_interval($lasttime);
945: $lasttime=[&gettimeofday()];
946: }
1.439 albertel 947: my $spacing=' 'x($#Apache::lonxml::depthcounter);
948: $Apache::lonxml::curdepth = join('_',@Apache::lonxml::depthcounter);
949: # &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time : ".&tv_interval($timer));
1.54 albertel 950: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 951: }
1.19 albertel 952:
1.399 albertel 953: sub get_id {
954: my ($parstack,$safeeval)=@_;
955: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.449 albertel 956: if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) {
1.498 bisitz 957: &error(&mt('ID [_1] contains invalid characters. IDs are only allowed to contain letters, numbers, spaces and -','"<tt>'.$id.'</tt>"'));
1.399 albertel 958: }
959: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
960: return $id;
961: }
962:
1.180 albertel 963: sub get_all_text_unbalanced {
1.190 albertel 964: #there is a copy of this in lonpublisher.pm
1.326 albertel 965: my($tag,$pars)= @_;
966: my $token;
967: my $result='';
968: $tag='<'.$tag.'>';
969: while ($token = $$pars[-1]->get_token) {
970: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.386 albertel 971: if ($token->[0] eq 'T' && $token->[2]) {
1.382 albertel 972: $result.='<![CDATA['.$token->[1].']]>';
973: } else {
974: $result.=$token->[1];
975: }
1.326 albertel 976: } elsif ($token->[0] eq 'PI') {
977: $result.=$token->[2];
978: } elsif ($token->[0] eq 'S') {
979: $result.=$token->[4];
980: } elsif ($token->[0] eq 'E') {
981: $result.=$token->[2];
982: }
983: if ($result =~ /\Q$tag\E/is) {
984: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
985: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
986: #&Apache::lonxml::debug('Result is :'.$1);
987: $redo=$tag.$redo;
988: &Apache::lonxml::newparser($pars,\$redo);
989: last;
990: }
991: }
992: return $result
1.462 foxr 993:
1.204 albertel 994: }
995:
1.462 foxr 996: #########################################################################
997: # #
998: # bubble line counter management #
999: # #
1000: #########################################################################
1001:
1.447 albertel 1002: =pod
1003:
1004: For bubble grading mode and exam bubble printing mode, the tracking of
1005: the current 'bubble line number' is stored in the %env element
1006: 'form.counter', and is modifed and handled by the following routines.
1007:
1008: The value of it is stored in $Apache:lonxml::counter when live and
1009: stored back to env after done.
1010:
1011: =item &increment_counter($increment);
1012:
1013: Increments the internal counter environment variable a specified amount
1014:
1015: Optional Arguments:
1016: $increment - amount to increment by (defaults to 1)
1.462 foxr 1017: Also 1 if the value is negative or zero.
1.467 foxr 1018: $part_response - A concatenation of the part and response id
1019: identifying exactly what is being 'answered'.
1020:
1.447 albertel 1021:
1022: =cut
1023:
1.204 albertel 1024: sub increment_counter {
1.467 foxr 1025: my ($increment, $part_response) = @_;
1.481 raeburn 1026: if ($env{'form.grade_noincrement'}) { return; }
1.462 foxr 1027: if (!defined($increment) || $increment le 0) {
1028: $increment = 1;
1029: }
1030: $Apache::lonxml::counter += $increment;
1031:
1.466 foxr 1032: # If the caller supplied the response_id parameter,
1.462 foxr 1033: # Maintain its counter.. creating if necessary.
1034:
1.470 albertel 1035: if (defined($part_response)) {
1.467 foxr 1036: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1037: $Apache::lonxml::counters_per_part{$part_response} = 0;
1.462 foxr 1038: }
1.467 foxr 1039: $Apache::lonxml::counters_per_part{$part_response} += $increment;
1040: my $new_value = $Apache::lonxml::counters_per_part{$part_response};
1.247 albertel 1041: }
1.462 foxr 1042:
1.289 sakharuk 1043: $Apache::lonxml::counter_changed=1;
1.204 albertel 1044: }
1045:
1.447 albertel 1046: =pod
1047:
1.461 foxr 1048: =item &init_counter($increment);
1.447 albertel 1049:
1050: Initialize the internal counter environment variable
1051:
1052: =cut
1053:
1.204 albertel 1054: sub init_counter {
1.391 albertel 1055: if ($env{'request.state'} eq 'construct') {
1056: $Apache::lonxml::counter=1;
1057: $Apache::lonxml::counter_changed=1;
1058: } elsif (defined($env{'form.counter'})) {
1.372 albertel 1059: $Apache::lonxml::counter=$env{'form.counter'};
1.247 albertel 1060: $Apache::lonxml::counter_changed=0;
1.237 sakharuk 1061: } else {
1.204 albertel 1062: $Apache::lonxml::counter=1;
1.247 albertel 1063: $Apache::lonxml::counter_changed=1;
1.204 albertel 1064: }
1065: }
1066:
1067: sub store_counter {
1.474 raeburn 1068: &Apache::lonnet::appenv({'form.counter' => $Apache::lonxml::counter});
1.401 albertel 1069: $Apache::lonxml::counter_changed=0;
1.204 albertel 1070: return '';
1.180 albertel 1071: }
1072:
1.398 albertel 1073: {
1074: my $state;
1075: sub clear_problem_counter {
1076: undef($state);
1077: &Apache::lonnet::delenv('form.counter');
1078: &Apache::lonxml::init_counter();
1079: &Apache::lonxml::store_counter();
1080: }
1081:
1082: sub remember_problem_counter {
1.422 albertel 1083: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.398 albertel 1084: $state = $env{'form.counter'};
1085: }
1086:
1087: sub restore_problem_counter {
1088: if (defined($state)) {
1.474 raeburn 1089: &Apache::lonnet::appenv({'form.counter' => $state});
1.398 albertel 1090: }
1091: }
1.401 albertel 1092: sub get_problem_counter {
1093: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.422 albertel 1094: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.401 albertel 1095: return $env{'form.counter'};
1096: }
1.398 albertel 1097: }
1098:
1.462 foxr 1099: =pod
1100:
1.468 albertel 1101: =item bubble_lines_for_part(part_response)
1.462 foxr 1102:
1103: Returns the number of lines required to get a response for
1.467 foxr 1104: $part_response (this is just $Apache::lonxml::counters_per_part{$part_response}
1.462 foxr 1105:
1106: =cut
1107:
1108: sub bubble_lines_for_part {
1.467 foxr 1109: my ($part_response) = @_;
1.462 foxr 1110:
1.467 foxr 1111: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1.462 foxr 1112: return 0;
1113: } else {
1.467 foxr 1114: return $Apache::lonxml::counters_per_part{$part_response};
1.462 foxr 1115: }
1116: }
1117:
1118: =pod
1119:
1120: =item clear_bubble_lines_for_part
1121:
1122: Clears the hash of bubble lines per part. If a caller
1123: needs to analyze several resources this should be called between
1124: resources to reset the hash for each problem being analyzed.
1125:
1126: =cut
1127:
1128: sub clear_bubble_lines_for_part {
1129: undef(%Apache::lonxml::counters_per_part);
1130: }
1131:
1132: =pod
1133:
1.468 albertel 1134: =item set_bubble_lines(part_response, value)
1.462 foxr 1135:
1136: If there is a problem part, that for whatever reason
1137: requires bubble lines that are not
1138: the same as the counter increment, it can call this sub during
1139: analysis to set its hash value explicitly.
1140:
1141: =cut
1142:
1143: sub set_bubble_lines {
1.467 foxr 1144: my ($part_response, $value) = @_;
1.462 foxr 1145:
1.467 foxr 1146: $Apache::lonxml::counters_per_part{$part_response} = $value;
1.462 foxr 1147: }
1148:
1149: =pod
1150:
1151: =item get_bubble_line_hash
1152:
1153: Returns the current bubble line hash. This is assumed to
1154: be small so we return a copy
1155:
1156:
1157: =cut
1158:
1159: sub get_bubble_line_hash {
1160: return %Apache::lonxml::counters_per_part;
1161: }
1162:
1163:
1164: #--------------------------------------------------
1165:
1.19 albertel 1166: sub get_all_text {
1.270 albertel 1167: my($tag,$pars,$style)= @_;
1168: my $gotfullstack=1;
1169: if (ref($pars) ne 'ARRAY') {
1170: $gotfullstack=0;
1171: $pars=[$pars];
1172: }
1173: if (ref($style) ne 'HASH') {
1174: $style={};
1175: }
1176: my $depth=0;
1177: my $token;
1178: my $result='';
1179: if ( $tag =~ m:^/: ) {
1180: my $tag=substr($tag,1);
1181: #&Apache::lonxml::debug("have:$tag:");
1182: my $top_empty=0;
1183: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
1184: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
1185: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
1186: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.382 albertel 1187: if ($token->[2]) {
1188: $result.='<![CDATA['.$token->[1].']]>';
1189: } else {
1190: $result.=$token->[1];
1191: }
1.270 albertel 1192: } elsif ($token->[0] eq 'PI') {
1193: $result.=$token->[2];
1194: } elsif ($token->[0] eq 'S') {
1.316 albertel 1195: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
1196: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1197: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1198: $result.=$token->[4];
1199: } elsif ($token->[0] eq 'E') {
1.316 albertel 1200: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1.270 albertel 1201: #skip sending back the last end tag
1.283 albertel 1202: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1.270 albertel 1203: my $string=
1204: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
1205: $$style{'/'.$token->[1]}.
1206: $token->[2].
1207: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
1208: &Apache::lonxml::newparser($pars,\$string);
1209: #&Apache::lonxml::debug("reParsing $string");
1210: next;
1211: }
1212: if ($depth > -1) {
1213: $result.=$token->[2];
1214: } else {
1215: $$pars[-1]->unget_token($token);
1216: }
1217: }
1218: }
1219: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
1220: if (($depth >=0) && ($#$pars > 0) ) {
1221: pop(@$pars);
1222: pop(@Apache::lonxml::pwd);
1223: }
1224: }
1225: if ($top_empty && $depth >= 0) {
1226: #never found the end tag ran out of text, throw error send back blank
1227: &error('Never found end tag for <'.$tag.
1228: '> current string <pre>'.
1.314 albertel 1229: &HTML::Entities::encode($result,'<>&"').
1.270 albertel 1230: '</pre>');
1231: if ($gotfullstack) {
1232: my $newstring='</'.$tag.'>'.$result;
1233: &Apache::lonxml::newparser($pars,\$newstring);
1234: }
1235: $result='';
1236: }
1237: } else {
1238: while ($#$pars > -1) {
1239: while ($token = $$pars[-1]->get_token) {
1240: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
1241: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
1242: ($token->[0] eq 'D')) {
1.382 albertel 1243: if ($token->[2]) {
1244: $result.='<![CDATA['.$token->[1].']]>';
1245: } else {
1246: $result.=$token->[1];
1247: }
1.270 albertel 1248: } elsif ($token->[0] eq 'PI') {
1249: $result.=$token->[2];
1250: } elsif ($token->[0] eq 'S') {
1.316 albertel 1251: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1.270 albertel 1252: $$pars[-1]->unget_token($token); last;
1253: } else {
1254: $result.=$token->[4];
1255: }
1.316 albertel 1256: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1257: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1258: } elsif ($token->[0] eq 'E') {
1259: $result.=$token->[2];
1260: }
1261: }
1262: if (($#$pars > 0) ) {
1263: pop(@$pars);
1264: pop(@Apache::lonxml::pwd);
1265: } else { last; }
1266: }
1267: }
1268: #&Apache::lonxml::debug("Exit:$result:");
1269: return $result
1.19 albertel 1270: }
1271:
1.23 albertel 1272: sub newparser {
1273: my ($parser,$contentref,$dir) = @_;
1.167 albertel 1274: push (@$parser,HTML::LCParser->new($contentref));
1.365 albertel 1275: $$parser[-1]->xml_mode(1);
1276: $$parser[-1]->marked_sections(1);
1.23 albertel 1277: if ( $dir eq '' ) {
1278: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1279: } else {
1280: push (@Apache::lonxml::pwd, $dir);
1281: }
1282: }
1.1 sakharuk 1283:
1.8 albertel 1284: sub parstring {
1.417 albertel 1285: my ($token) = @_;
1286: my (@vars,@values);
1287: foreach my $attr (@{$token->[3]}) {
1288: if ($attr!~/\W/) {
1289: my $val=$token->[2]->{$attr};
1290: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1291: $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
1292: $val =~ s/(\$)$/\\$1/;
1293: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1294: push(@vars,"\$$attr");
1295: push(@values,"\"$val\"");
1296: }
1297: }
1298: my $var_init =
1299: (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
1300: : '';
1301: return $var_init;
1.8 albertel 1302: }
1.22 albertel 1303:
1.384 albertel 1304: sub extlink {
1305: my ($res,$exact)=@_;
1306: if (!$exact) {
1307: $res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
1308: }
1309: push(@Apache::lonxml::extlinks,$res)
1310: }
1311:
1.34 www 1312: sub writeallows {
1.126 www 1313: unless ($#extlinks>=0) { return; }
1.377 albertel 1314: my $thisurl = &Apache::lonnet::clutter(shift);
1.372 albertel 1315: if ($env{'httpref.'.$thisurl}) {
1316: $thisurl=$env{'httpref.'.$thisurl};
1.111 www 1317: }
1.34 www 1318: my $thisdir=$thisurl;
1319: $thisdir=~s/\/[^\/]+$//;
1320: my %httpref=();
1.142 albertel 1321: foreach (@extlinks) {
1.34 www 1322: $httpref{'httpref.'.
1.444 albertel 1323: &Apache::lonnet::hreflocation($thisdir,&unescape($_))}=$thisurl;
1.142 albertel 1324: }
1.126 www 1325: @extlinks=();
1.474 raeburn 1326: &Apache::lonnet::appenv(\%httpref);
1.34 www 1327: }
1328:
1.281 albertel 1329: sub register_ssi {
1330: my ($url,%form)=@_;
1331: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1332: return '';
1333: }
1334:
1335: sub do_registered_ssi {
1336: foreach my $info (@Apache::lonxml::ssi_info) {
1337: my %form=%{ $info->{'form'}};
1338: my $url=$info->{'url'};
1339: &Apache::lonnet::ssi($url,%form);
1340: }
1341: }
1.448 albertel 1342:
1343: sub add_script_result {
1344: my ($display) = @_;
1345: push(@script_var_displays, $display);
1346: }
1347:
1.66 www 1348: #
1349: # Afterburner handles anchors, highlights and links
1350: #
1351: sub afterburn {
1352: my $result=shift;
1.154 albertel 1353: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1354: ['highlight','anchor','link']);
1.372 albertel 1355: if ($env{'form.highlight'}) {
1356: foreach (split(/\,/,$env{'form.highlight'})) {
1.66 www 1357: my $anchorname=$_;
1358: my $matchthis=$anchorname;
1359: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1360: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1361: }
1.66 www 1362: }
1.372 albertel 1363: if ($env{'form.link'}) {
1364: foreach (split(/\,/,$env{'form.link'})) {
1.66 www 1365: my ($anchorname,$linkurl)=split(/\>/,$_);
1366: my $matchthis=$anchorname;
1367: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1368: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1369: }
1.66 www 1370: }
1.372 albertel 1371: if ($env{'form.anchor'}) {
1372: my $anchorname=$env{'form.anchor'};
1.66 www 1373: my $matchthis=$anchorname;
1374: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1375: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1.66 www 1376: $result.=(<<"ENDSCRIPT");
1.226 albertel 1377: <script type="text/javascript">
1.66 www 1378: document.location.hash='$anchorname';
1379: </script>
1380: ENDSCRIPT
1381: }
1382: return $result;
1383: }
1384:
1.79 www 1385: sub storefile {
1386: my ($file,$contents)=@_;
1.290 albertel 1387: &Apache::lonnet::correct_line_ends(\$contents);
1.79 www 1388: if (my $fh=Apache::File->new('>'.$file)) {
1389: print $fh $contents;
1390: $fh->close();
1.271 www 1391: return 1;
1.147 albertel 1392: } else {
1.482 bisitz 1393: &warning(&mt('Unable to save file [_1]','<tt>'.$file.'</tt>'));
1.271 www 1394: return 0;
1.79 www 1395: }
1396: }
1397:
1.151 albertel 1398: sub createnewhtml {
1.321 www 1399: my $title=&mt('Title of document goes here');
1400: my $body=&mt('Body of document goes here');
1401: my $filecontents=(<<SIMPLECONTENT);
1.78 www 1402: <html>
1403: <head>
1.321 www 1404: <title>$title</title>
1.78 www 1405: </head>
1406: <body bgcolor="#FFFFFF">
1.321 www 1407: $body
1.78 www 1408: </body>
1409: </html>
1410: SIMPLECONTENT
1.321 www 1411: return $filecontents;
1.151 albertel 1412: }
1413:
1.274 albertel 1414: sub createnewsty {
1415: my $filecontents=(<<SIMPLECONTENT);
1416: <definetag name="">
1417: <render>
1418: <web></web>
1419: <tex></tex>
1420: </render>
1421: </definetag>
1422: SIMPLECONTENT
1423: return $filecontents;
1424: }
1425:
1.493 raeburn 1426: sub createnewjs {
1427: my $filecontents=(<<SIMPLECONTENT);
1428: <script type="text/javascript" language="Javascript">
1429:
1430: </script>
1431: SIMPLECONTENT
1432: return $filecontents;
1433: }
1434:
1.472 www 1435: sub verify_html {
1436: my ($filecontents)=@_;
1.516 ! raeburn 1437: my ($is_html,$is_xml);
! 1438: if ($filecontents =~/(?:\<|\<\;)\?xml[^\<]*\?(?:\>|\>\;)/is) {
! 1439: $is_xml = 1;
! 1440: } elsif ($filecontents =~/(?:\<|\<\;)html(?:\s+[^\<]+|\s*)[^\<]*(?:\>|\>\;)/is) {
! 1441: $is_html = 1;
! 1442: }
! 1443: unless ($is_xml || $is_html) {
! 1444: return &mt('File does not have [_1] or [_2] starting tag','<html>','<?xml ?>');
! 1445: }
! 1446: if ($is_html) {
! 1447: if ($filecontents!~/(?:\<|\<\;)\/html(?:\>|\>\;)/is) {
! 1448: return &mt('File does not have [_1] ending tag','<html>');
! 1449: }
! 1450: if ($filecontents!~/(?:\<|\<\;)(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
! 1451: return &mt('File does not have [_1] or [_2] starting tag','<body>','<frameset>');
! 1452: }
! 1453: if ($filecontents!~/(?:\<|\<\;)\/(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
! 1454: return &mt('File does not have [_1] or [_2] ending tag','<body>','<frameset>');
! 1455: }
1.472 www 1456: }
1457: return '';
1458: }
1.147 albertel 1459:
1.478 www 1460: sub renderingoptions {
1461: my %langchoices=('' => '');
1462: foreach (&Apache::loncommon::languageids()) {
1463: if (&Apache::loncommon::supportedlanguagecode($_)) {
1464: $langchoices{&Apache::loncommon::supportedlanguagecode($_)}
1465: = &Apache::loncommon::plainlanguagedescription($_);
1466: }
1467: }
1.500 raeburn 1468: my $output;
1469: unless ($env{'form.forceedit'}) {
1.504 bisitz 1470: $output .=
1471: '<span class="LC_nobreak">'.
1.500 raeburn 1472: &mt('Language:').' '.
1.504 bisitz 1473: &Apache::loncommon::select_form(
1474: $env{'form.languages'},
1475: 'languages',
1.510 raeburn 1476: {&Apache::lonlocal::texthash(%langchoices)}).
1.504 bisitz 1477: '</span>';
1.500 raeburn 1478: }
1.504 bisitz 1479: $output .=
1480: ' <span class="LC_nobreak">'.
1.479 bisitz 1481: &mt('Math Rendering:').' '.
1.504 bisitz 1482: &Apache::loncommon::select_form(
1483: $env{'form.texengine'},
1484: 'texengine',
1.510 raeburn 1485: {&Apache::lonlocal::texthash
1.504 bisitz 1486: ('' => '',
1487: 'tth' => 'tth (TeX to HTML)',
1488: 'jsMath' => 'jsMath',
1.510 raeburn 1489: 'mimetex' => 'mimetex (Convert to Images)')}).
1.504 bisitz 1490: '</span>';
1.500 raeburn 1491: return $output;
1.478 www 1492: }
1493:
1.151 albertel 1494: sub inserteditinfo {
1.470 albertel 1495: my ($filecontents, $filetype, $filename)=@_;
1.314 albertel 1496: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1.274 albertel 1497: my $xml_help = '';
1.321 www 1498: my $initialize='';
1.452 albertel 1499: my $textarea_id = 'filecont';
1.492 raeburn 1500: my $dragmath_button;
1.452 albertel 1501: my ($add_to_onload, $add_to_onresize);
1.456 albertel 1502: $initialize=&Apache::lonhtmlcommon::spellheader();
1.514 raeburn 1503: if (($filetype eq 'html') && (&Apache::lonhtmlcommon::htmlareabrowser())) {
1.463 albertel 1504: my $lang = &Apache::lonhtmlcommon::htmlarea_lang();
1.512 raeburn 1505: my %textarea_args = (
1506: fullpage => 'true',
1507: dragmath => 'math',
1508: );
1.514 raeburn 1509: $initialize .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1510: }
1511: $initialize .= (<<FULLPAGE);
1.321 www 1512: <script type="text/javascript">
1.514 raeburn 1513: // <![CDATA[
1.321 www 1514: function initDocument() {
1.463 albertel 1515: resize_textarea('$textarea_id','LC_aftertextarea');
1.321 www 1516: }
1.514 raeburn 1517: // ]]>
1.321 www 1518: </script>
1519: FULLPAGE
1.514 raeburn 1520: if ($filetype eq 'html') {
1521: $dragmath_button = '<span id="math_filecont">'.&Apache::lonhtmlcommon::dragmath_button('filecont',1).'</span>';
1522: $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup');
1.512 raeburn 1523: }
1.456 albertel 1524: $add_to_onload = 'initDocument();';
1525: $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');";
1526:
1527: if ($filetype eq 'html') {
1.321 www 1528: $xml_help=&Apache::loncommon::helpLatexCheatsheet();
1.274 albertel 1529: }
1.452 albertel 1530:
1.254 albertel 1531: my $titledisplay=&display_title();
1.512 raeburn 1532: my $textareaclass;
1.426 banghart 1533: my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
1534: 'vi' => 'Save and View',
1.427 banghart 1535: 'dv' => 'Discard Edits and View',
1.428 banghart 1536: 'un' => 'undo',
1.280 www 1537: 'ed' => 'Edit');
1.512 raeburn 1538: my $spelllink = &Apache::lonhtmlcommon::spelllink('xmledit','filecont');
1.451 albertel 1539: my $textarea_events = &Apache::edit::element_change_detection();
1540: my $form_events = &Apache::edit::form_change_detection();
1.491 raeburn 1541: my $htmlerror;
1542: if ($filetype eq 'html') {
1543: $htmlerror=&verify_html($filecontents);
1544: if ($htmlerror) {
1545: $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
1546: }
1.501 raeburn 1547: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.515 raeburn 1548: $textareaclass = 'class="LC_richDefaultOff"';
1.501 raeburn 1549: }
1.472 www 1550: }
1.78 www 1551: my $editfooter=(<<ENDFOOTER);
1.321 www 1552: $initialize
1.78 www 1553: <a name="editsection" />
1.451 albertel 1554: <form $form_events method="post" name="xmledit">
1.470 albertel 1555: <div class="LC_edit_problem_editxml_header">
1556: <table class="LC_edit_problem_header_title"><tr><td>
1557: $filename
1558: </td><td align="right">
1559: $xml_help
1560: </td></tr>
1561: </table>
1562: <div class="LC_edit_problem_discards">
1563: <input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
1564: <input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" />
1.513 raeburn 1565: $htmlerror $dragmath_button
1.470 albertel 1566: </div>
1567: <div class="LC_edit_problem_saves">
1568: <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
1569: <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
1570: </div>
1571: </div>
1.513 raeburn 1572: <textarea $textarea_events style="width:100%" cols="80" rows="44" name="filecont" id="filecont" $textareaclass>$filecontents</textarea><br />$spelllink
1.470 albertel 1573: <div id="LC_aftertextarea">
1574: <br />
1575: $titledisplay
1576: </div>
1.78 www 1577: </form>
1.321 www 1578: </body>
1.78 www 1579: ENDFOOTER
1.452 albertel 1580: return ($editfooter,$add_to_onload,$add_to_onresize);;
1.78 www 1581: }
1582:
1.152 albertel 1583: sub get_target {
1.372 albertel 1584: my $viewgrades=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1585: if ( $env{'request.state'} eq 'published') {
1586: if ( defined($env{'form.grade_target'})
1.152 albertel 1587: && ($viewgrades == 'F' )) {
1.372 albertel 1588: return ($env{'form.grade_target'});
1589: } elsif (defined($env{'form.grade_target'})) {
1590: if (($env{'form.grade_target'} eq 'web') ||
1591: ($env{'form.grade_target'} eq 'tex') ) {
1592: return $env{'form.grade_target'}
1.153 albertel 1593: } else {
1594: return 'web';
1595: }
1.152 albertel 1596: } else {
1597: return 'web';
1598: }
1.372 albertel 1599: } elsif ($env{'request.state'} eq 'construct') {
1600: if ( defined($env{'form.grade_target'})) {
1601: return ($env{'form.grade_target'});
1.152 albertel 1602: } else {
1603: return 'web';
1604: }
1605: } else {
1606: return 'web';
1607: }
1608: }
1609:
1.24 sakharuk 1610: sub handler {
1.255 sakharuk 1611: my $request=shift;
1.493 raeburn 1612:
1.255 sakharuk 1613: my $target=&get_target();
1.372 albertel 1614: $Apache::lonxml::debug=$env{'user.debug'};
1.255 sakharuk 1615:
1.364 albertel 1616: &Apache::loncommon::content_type($request,'text/html');
1.255 sakharuk 1617: &Apache::loncommon::no_cache($request);
1.372 albertel 1618: if ($env{'request.state'} eq 'published') {
1.363 albertel 1619: $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
1620: 'lastrevisiondate'));
1621: }
1.499 raeburn 1622: # Embedded Flash movies from Camtasia served from https will not display in IE
1623: # if XML config file has expired from cache.
1624: if ($ENV{'SERVER_PORT'} == 443) {
1625: if ($request->uri =~ /\.xml$/) {
1626: my ($httpbrowser,$clientbrowser) =
1627: &Apache::loncommon::decode_user_agent($request);
1628: if ($clientbrowser =~ /^explorer$/i) {
1629: delete $request->headers_out->{'Cache-control'};
1630: delete $request->headers_out->{'Pragma'};
1631: my $expiration = time + 60;
1632: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime($expiration));
1633: $request->headers_out->set("Expires" => $date);
1634: }
1635: }
1636: }
1.255 sakharuk 1637: $request->send_http_header;
1638:
1639: return OK if $request->header_only;
1.68 www 1640:
1641:
1.255 sakharuk 1642: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.502 raeburn 1643: my ($filetype,$breadcrumbtext);
1644: if ($file =~ /\.(sty|css|js|txt|tex)$/) {
1.493 raeburn 1645: $filetype=$1;
1.274 albertel 1646: } else {
1647: $filetype='html';
1648: }
1.502 raeburn 1649: if ($filetype eq 'sty') {
1650: $breadcrumbtext = 'Style File Editor';
1651: } elsif ($filetype eq 'js') {
1652: $breadcrumbtext = 'Javascript Editor';
1653: } elsif ($filetype eq 'css') {
1654: $breadcrumbtext = 'CSS Editor';
1655: } elsif ($filetype eq 'txt') {
1656: $breadcrumbtext = 'Text Editor';
1657: } elsif ($filetype eq 'tex') {
1658: $breadcrumbtext = 'TeX Editor';
1659: } else {
1660: $breadcrumbtext = 'HTML Editor';
1661: }
1.493 raeburn 1662:
1.78 www 1663: #
1664: # Edit action? Save file.
1665: #
1.428 banghart 1666: if (!($env{'request.state'} eq 'published')) {
1667: if ($env{'form.savethisfile'} || $env{'form.viewmode'} || $env{'form.Undo'}) {
1.429 albertel 1668: my $html_file=&Apache::lonnet::getfile($file);
1669: my $error = &Apache::lonhomework::handle_save_or_undo($request, \$html_file, \$env{'form.filecont'});
1.472 www 1670: if ($env{'form.savethisfile'}) {
1671: $env{'form.editmode'}='Edit'; #force edit mode
1672: }
1.255 sakharuk 1673: }
1674: }
1675: my %mystyle;
1676: my $result = '';
1677: my $filecontents=&Apache::lonnet::getfile($file);
1678: if ($filecontents eq -1) {
1.402 albertel 1679: my $start_page=&Apache::loncommon::start_page('File Error');
1.412 albertel 1680: my $end_page=&Apache::loncommon::end_page();
1.495 bisitz 1681: my $errormsg='<p class="LC_error">'
1682: .&mt('File not found: [_1]'
1683: ,'<span class="LC_filename">'.$file.'</span>')
1684: .'</p>';
1.255 sakharuk 1685: $result=(<<ENDNOTFOUND);
1.402 albertel 1686: $start_page
1.495 bisitz 1687: $errormsg
1.402 albertel 1688: $end_page
1.78 www 1689: ENDNOTFOUND
1.343 albertel 1690: $filecontents='';
1.372 albertel 1691: if ($env{'request.state'} ne 'published') {
1.274 albertel 1692: if ($filetype eq 'sty') {
1693: $filecontents=&createnewsty();
1.493 raeburn 1694: } elsif ($filetype eq 'js') {
1695: $filecontents=&createnewjs();
1.502 raeburn 1696: } elsif ($filetype ne 'css' && $filetype ne 'txt' && $filetype ne 'tex') {
1.274 albertel 1697: $filecontents=&createnewhtml();
1698: }
1.372 albertel 1699: $env{'form.editmode'}='Edit'; #force edit mode
1.255 sakharuk 1700: }
1701: } else {
1.372 albertel 1702: unless ($env{'request.state'} eq 'published') {
1.343 albertel 1703: if ($filecontents=~/BEGIN LON-CAPA Internal/) {
1.381 www 1704: &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 1705: }
1.264 www 1706: #
1707: # we are in construction space, see if edit mode forced
1.385 albertel 1708: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1709: ['editmode']);
1.255 sakharuk 1710: }
1.427 banghart 1711: if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
1.493 raeburn 1712: if ($filetype eq 'html' || $filetype eq 'sty') {
1713: &Apache::structuretags::reset_problem_globals();
1714: $result = &Apache::lonxml::xmlparse($request,$target,
1715: $filecontents,'',%mystyle);
1.455 albertel 1716: # .html files may contain <problem> or <Task> need to clean
1717: # up if it did
1.493 raeburn 1718: &Apache::structuretags::reset_problem_globals();
1719: &Apache::lonhomework::finished_parsing();
1.502 raeburn 1720: } elsif ($filetype eq 'tex') {
1.503 raeburn 1721: $result = &Apache::lontexconvert::converted(\$filecontents,
1722: $env{'form.texengine'});
1723: if ($env{'form.return_only_error_and_warning_counts'}) {
1724: if (&verify_html('<html><body>'.$result.'</body></html>')) {
1725: $errorcount++;
1726: }
1727: $result = "$errorcount:$warningcount";
1728: }
1.493 raeburn 1729: } else {
1730: $result = $filecontents;
1731: }
1.385 albertel 1732: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1733: ['rawmode']);
1.395 albertel 1734: if ($env{'form.rawmode'}) { $result = $filecontents; }
1.503 raeburn 1735: if (($filetype ne 'html') &&
1736: (!$env{'form.return_only_error_and_warning_counts'})) {
1.502 raeburn 1737: my $nochgview = 1;
1.495 bisitz 1738: my $controls = '';
1739: if ($env{'request.state'} eq 'construct') {
1740: $controls = &Apache::loncommon::head_subbox(
1741: &Apache::loncommon::CSTR_pageheader()
1742: .&Apache::londefdef::edit_controls($nochgview));
1743: }
1.502 raeburn 1744: if ($filetype ne 'sty' && $filetype ne 'tex') {
1.493 raeburn 1745: $result =~ s/</</g;
1746: $result =~ s/>/>/g;
1747: $result = '<table class="LC_sty_begin">'.
1748: '<tr><td><b><pre>'.$result.
1749: '</pre></b></td></tr></table>';
1750: }
1.506 droeschl 1751: my $brcrum;
1752: if ($env{'request.state'} eq 'construct') {
1753: $brcrum = [{'href' => &Apache::loncommon::authorspace(),
1754: 'text' => 'Construction Space'},
1755: {'href' => '',
1756: 'text' => $breadcrumbtext}];
1.493 raeburn 1757: } else {
1.506 droeschl 1758: $brcrum = ''; # FIXME: Where are we?
1.493 raeburn 1759: }
1.506 droeschl 1760: my %options = ('bread_crumbs' => $brcrum,
1761: 'bgcolor' => '#FFFFFF');
1762: $result =
1763: &Apache::loncommon::start_page(undef,undef,\%options)
1764: .$controls
1765: .$result
1766: .&Apache::loncommon::end_page();
1.493 raeburn 1767: }
1.495 bisitz 1768: }
1.147 albertel 1769: }
1.456 albertel 1770:
1.78 www 1771: #
1772: # Edit action? Insert editing commands
1773: #
1.372 albertel 1774: unless ($env{'request.state'} eq 'published') {
1.427 banghart 1775: if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
1.450 albertel 1776: {
1.470 albertel 1777: my $displayfile=$request->uri;
1778: $displayfile=~s/^\/[^\/]*//;
1779:
1.452 albertel 1780: my ($edit_info, $add_to_onload, $add_to_onresize)=
1.470 albertel 1781: &inserteditinfo($filecontents,$filetype,$displayfile);
1.450 albertel 1782:
1783: my %options =
1784: ('add_entries' =>
1.495 bisitz 1785: {'onresize' => $add_to_onresize,
1786: 'onload' => $add_to_onload, });
1.500 raeburn 1787: my $header;
1788: if ($env{'request.state'} eq 'construct') {
1789: $options{'bread_crumbs'} = [{
1790: 'href' => &Apache::loncommon::authorspace(),
1791: 'text' => 'Construction Space'},
1792: {'href' => '',
1.502 raeburn 1793: 'text' => $breadcrumbtext}];
1.500 raeburn 1794: $header = &Apache::loncommon::head_subbox(
1795: &Apache::loncommon::CSTR_pageheader());
1796: }
1.452 albertel 1797: my $js =
1798: &Apache::edit::js_change_detection().
1799: &Apache::loncommon::resize_textarea_js();
1.451 albertel 1800: my $start_page = &Apache::loncommon::start_page(undef,$js,
1.402 albertel 1801: \%options);
1.495 bisitz 1802: $result = $start_page
1.500 raeburn 1803: .$header
1.495 bisitz 1804: .&Apache::lonxml::message_location()
1805: .$edit_info
1806: .&Apache::loncommon::end_page();
1.493 raeburn 1807: }
1.147 albertel 1808: }
1.402 albertel 1809: if ($filetype eq 'html') { &writeallows($request->uri); }
1.501 raeburn 1810:
1.309 albertel 1811: &Apache::lonxml::add_messages(\$result);
1.255 sakharuk 1812: $request->print($result);
1813:
1814: return OK;
1.253 albertel 1815: }
1816:
1817: sub display_title {
1818: my $result;
1.372 albertel 1819: if ($env{'request.state'} eq 'construct') {
1.253 albertel 1820: my $title=&Apache::lonnet::gettitle();
1821: if (!defined($title) || $title eq '') {
1.372 albertel 1822: $title = $env{'request.filename'};
1.253 albertel 1823: $title = substr($title, rindex($title, '/') + 1);
1824: }
1.476 bisitz 1825: $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA "
1826: .&mt('Construction Space')."';</script>";
1.253 albertel 1827: }
1828: return $result;
1.24 sakharuk 1829: }
1.147 albertel 1830:
1.22 albertel 1831: sub debug {
1.298 albertel 1832: if ($Apache::lonxml::debug eq "1") {
1833: $|=1;
1.300 albertel 1834: my $request=$Apache::lonxml::request;
1.388 albertel 1835: if (!$request) {
1836: eval { $request=Apache->request; };
1837: }
1838: if (!$request) {
1839: eval { $request=Apache2::RequestUtil->request; };
1840: }
1.314 albertel 1841: $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
1.346 albertel 1842: #&Apache::lonnet::logthis($_[0]);
1.298 albertel 1843: }
1.22 albertel 1844: }
1.49 albertel 1845:
1.348 albertel 1846: sub show_error_warn_msg {
1.372 albertel 1847: if ($env{'request.filename'} eq '/home/httpd/html/res/lib/templates/simpleproblem.problem' &&
1848: &Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1.351 albertel 1849: return 1;
1850: }
1.348 albertel 1851: return (($Apache::lonxml::debug eq 1) ||
1.372 albertel 1852: ($env{'request.state'} eq 'construct') ||
1.348 albertel 1853: ($Apache::lonhomework::browse eq 'F'
1854: &&
1.372 albertel 1855: $env{'form.show_errors'} eq 'on'));
1.348 albertel 1856: }
1857:
1.22 albertel 1858: sub error {
1.454 albertel 1859: my @errors = @_;
1860:
1.336 albertel 1861: $errorcount++;
1.454 albertel 1862:
1.490 www 1863: $Apache::lonxml::internal_error=1;
1864:
1.454 albertel 1865: if (defined($Apache::inputtags::part)) {
1866: if ( @Apache::inputtags::response ) {
1867: push(@errors,
1868: &mt("This error occurred while processing response [_1] in part [_2]",
1869: $Apache::inputtags::response[-1],
1870: $Apache::inputtags::part));
1871: } else {
1872: push(@errors,
1873: &mt("This error occurred while processing part [_1]",
1874: $Apache::inputtags::part));
1875: }
1876: }
1877:
1.348 albertel 1878: if ( &show_error_warn_msg() ) {
1.336 albertel 1879: # If printing in construction space, put the error inside <pre></pre>
1880: push(@Apache::lonxml::error_messages,
1.484 bisitz 1881: $Apache::lonxml::warnings_error_header
1882: .'<div class="LC_error">'
1883: .'<b>'.&mt('ERROR:').' </b>'.join("<br />\n",@errors)
1884: ."</div>\n");
1.336 albertel 1885: $Apache::lonxml::warnings_error_header='';
1886: } else {
1887: my $errormsg;
1888: my ($symb)=&Apache::lonnet::symbread();
1889: if ( !$symb ) {
1890: #public or browsers
1.486 bisitz 1891: $errormsg=&mt("An error occurred while processing this resource. The author has been notified.");
1.403 albertel 1892: }
1.413 albertel 1893: my $host=$Apache::lonnet::perlvar{'lonHostID'};
1.476 bisitz 1894: push(@errors,
1895: &mt("The error occurred on host [_1]",
1896: "<tt>$host</tt>"));
1.454 albertel 1897:
1898: my $msg = join('<br />', @errors);
1899:
1.336 albertel 1900: #notify author
1.403 albertel 1901: &Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
1.336 albertel 1902: #notify course
1.372 albertel 1903: if ( $symb && $env{'request.course.id'} ) {
1.380 www 1904: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1905: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.440 albertel 1906: my (undef,%users)=&Apache::lonmsg::decide_receiver(undef,0,1,1,1);
1.372 albertel 1907: my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
1.435 raeburn 1908: my $baseurl = &Apache::lonnet::clutter($declutter);
1.336 albertel 1909: my @userlist;
1910: foreach (keys %users) {
1911: my ($user,$domain) = split(/:/, $_);
1912: push(@userlist,"$user\@$domain");
1.380 www 1913: my $key=$declutter.'_'.$user.'_'.$domain;
1914: my %lastnotified=&Apache::lonnet::get('nohist_xmlerrornotifications',
1915: [$key],
1916: $cdom,$cnum);
1917: my $now=time;
1918: if ($now-$lastnotified{$key}>86400) {
1.434 raeburn 1919: my $title = &Apache::lonnet::gettitle($symb);
1920: my $sentmessage;
1.380 www 1921: &Apache::lonmsg::user_normal_msg($user,$domain,
1.435 raeburn 1922: "Error [$title]",$msg,'',$baseurl,'','',
1.434 raeburn 1923: \$sentmessage,$symb,$title,1);
1.380 www 1924: &Apache::lonnet::put('nohist_xmlerrornotifications',
1925: {$key => $now},
1926: $cdom,$cnum);
1927: }
1.336 albertel 1928: }
1.372 albertel 1929: if ($env{'request.role.adv'}) {
1.486 bisitz 1930: $errormsg=&mt("An error occurred while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
1.336 albertel 1931: } else {
1.486 bisitz 1932: $errormsg=&mt("An error occurred while processing this resource. The instructor has been notified.");
1.336 albertel 1933: }
1934: }
1935: push(@Apache::lonxml::error_messages,"<b>$errormsg</b> <br />");
1.52 albertel 1936: }
1.22 albertel 1937: }
1.49 albertel 1938:
1.22 albertel 1939: sub warning {
1.295 albertel 1940: $warningcount++;
1.261 albertel 1941:
1.372 albertel 1942: if ($env{'form.grade_target'} ne 'tex') {
1.348 albertel 1943: if ( &show_error_warn_msg() ) {
1.309 albertel 1944: push(@Apache::lonxml::warning_messages,
1.484 bisitz 1945: $Apache::lonxml::warnings_error_header
1946: .'<div class="LC_warning">'
1947: .&mt('[_1]W[_2]ARNING','<b>','</b>')."<b>:</b> ".join('<br />',@_)
1948: ."</div>\n"
1.482 bisitz 1949: );
1.295 albertel 1950: $Apache::lonxml::warnings_error_header='';
1951: }
1952: }
1.309 albertel 1953: }
1954:
1955: sub info {
1.372 albertel 1956: if ($env{'form.grade_target'} ne 'tex'
1957: && $env{'request.state'} eq 'construct') {
1.309 albertel 1958: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
1959: }
1960: }
1961:
1962: sub message_location {
1963: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
1964: }
1965:
1966: sub add_messages {
1967: my ($msg)=@_;
1968: my $result=join(' ',
1969: @Apache::lonxml::info_messages,
1970: @Apache::lonxml::error_messages,
1971: @Apache::lonxml::warning_messages);
1972: undef(@Apache::lonxml::info_messages);
1973: undef(@Apache::lonxml::error_messages);
1974: undef(@Apache::lonxml::warning_messages);
1975: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
1976: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
1.83 albertel 1977: }
1978:
1979: sub get_param {
1.213 albertel 1980: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1981: if ( ! $context ) { $context = -1; }
1982: my $args ='';
1983: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1984: if ( ! $Apache::lonxml::usestyle ) {
1985: $args=$Apache::lonxml::style_values.$args;
1986: }
1.213 albertel 1987: if ( ! $args ) { return undef; }
1988: if ( $case_insensitive ) {
1.417 albertel 1989: if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
1.213 albertel 1990: return &Apache::run::run("{$args;".'return $'.$param.'}',
1991: $safeeval); #'
1992: } else {
1993: return undef;
1994: }
1995: } else {
1.417 albertel 1996: if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
1.213 albertel 1997: return &Apache::run::run("{$args;".'return $'.$param.'}',
1998: $safeeval); #'
1999: } else {
2000: return undef;
2001: }
2002: }
1.22 albertel 2003: }
2004:
1.132 albertel 2005: sub get_param_var {
1.213 albertel 2006: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 2007: if ( ! $context ) { $context = -1; }
2008: my $args ='';
2009: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 2010: if ( ! $Apache::lonxml::usestyle ) {
2011: $args=$Apache::lonxml::style_values.$args;
2012: }
1.230 albertel 2013: &Apache::lonxml::debug("Args are $args param is $param");
1.213 albertel 2014: if ($case_insensitive) {
1.419 albertel 2015: if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
1.213 albertel 2016: return undef;
2017: }
1.419 albertel 2018: } elsif ( $args !~ /my .*\$\Q$param\E[,\)]/ ) { return undef; }
1.132 albertel 2019: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.230 albertel 2020: &Apache::lonxml::debug("first run is $value");
1.341 albertel 2021: if ($value =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
1.230 albertel 2022: &Apache::lonxml::debug("doing second");
2023: my @result=&Apache::run::run("return $value",$safeeval,1);
2024: if (!defined($result[0])) {
2025: return $value
2026: } else {
2027: if (wantarray) { return @result; } else { return $result[0]; }
2028: }
1.132 albertel 2029: } else {
2030: return $value;
2031: }
2032: }
2033:
1.438 albertel 2034: sub register_insert_xml {
2035: my $parser = HTML::LCParser->new($Apache::lonnet::perlvar{'lonTabDir'}
2036: .'/insertlist.xml');
2037: my ($tagnum,$in_help)=(0,0);
1.442 albertel 2038: my @alltags;
1.438 albertel 2039: my $tag;
2040: while (my $token = $parser->get_token()) {
2041: if ($token->[0] eq 'S') {
2042: my $key;
2043: if ($token->[1] eq 'tag') {
2044: $tag = $token->[2]{'name'};
2045: $insertlist{"$tagnum.tag"} = $tag;
2046: $insertlist{"$tag.num"} = $tagnum;
1.442 albertel 2047: push(@alltags,$tag);
1.438 albertel 2048: } elsif ($in_help && $token->[1] eq 'file') {
2049: $key = $tag.'.helpfile';
2050: } elsif ($in_help && $token->[1] eq 'description') {
2051: $key = $tag.'.helpdesc';
2052: } elsif ($token->[1] eq 'description' ||
2053: $token->[1] eq 'color' ||
2054: $token->[1] eq 'show' ) {
2055: $key = $tag.'.'.$token->[1];
2056: } elsif ($token->[1] eq 'insert_sub') {
2057: $key = $tag.'.function';
2058: } elsif ($token->[1] eq 'help') {
2059: $in_help=1;
2060: } elsif ($token->[1] eq 'allow') {
1.442 albertel 2061: $key = $tag.'.allow';
1.438 albertel 2062: }
2063: if (defined($key)) {
2064: $insertlist{$key} = $parser->get_text();
2065: $insertlist{$key} =~ s/(^\s*|\s*$ )//gx;
2066: }
2067: } elsif ($token->[0] eq 'E') {
2068: if ($token->[1] eq 'tag') {
2069: undef($tag);
2070: $tagnum++;
2071: } elsif ($token->[1] eq 'help') {
2072: undef($in_help);
2073: }
2074: }
2075: }
1.442 albertel 2076:
2077: # parse the allows and ignore tags set to <show>no</show>
2078: foreach my $tag (@alltags) {
1.445 albertel 2079: next if (!exists($insertlist{"$tag.allow"}));
1.442 albertel 2080: my $allow = $insertlist{"$tag.allow"};
2081: foreach my $element (split(',',$allow)) {
2082: $element =~ s/(^\s*|\s*$ )//gx;
1.446 albertel 2083: if (!exists($insertlist{"$element.show"})
2084: || $insertlist{"$element.show"} ne 'no') {
1.442 albertel 2085: push(@{ $insertlist{$tag.'.which'} },$element);
2086: }
2087: }
2088: }
1.438 albertel 2089: }
2090:
2091: sub register_insert {
2092: return ®ister_insert_xml(@_);
2093: # &dump_insertlist('2');
2094: }
2095:
2096: sub dump_insertlist {
2097: my ($ext) = @_;
2098: open(XML,">/tmp/insertlist.xml.$ext");
2099: print XML ("<insertlist>");
2100: my $i=0;
2101:
2102: while (exists($insertlist{"$i.tag"})) {
2103: my $tag = $insertlist{"$i.tag"};
2104: print XML ("
2105: \t<tag name=\"$tag\">");
2106: if (defined($insertlist{"$tag.description"})) {
2107: print XML ("
2108: \t\t<description>".$insertlist{"$tag.description"}."</description>");
2109: }
2110: if (defined($insertlist{"$tag.color"})) {
2111: print XML ("
2112: \t\t<color>".$insertlist{"$tag.color"}."</color>");
2113: }
2114: if (defined($insertlist{"$tag.function"})) {
2115: print XML ("
2116: \t\t<insert_sub>".$insertlist{"$tag.function"}."</insert_sub>");
2117: }
2118: if (defined($insertlist{"$tag.show"})
2119: && $insertlist{"$tag.show"} ne 'yes') {
2120: print XML ("
2121: \t\t<show>".$insertlist{"$tag.show"}."</show>");
2122: }
2123: if (defined($insertlist{"$tag.helpfile"})) {
2124: print XML ("
2125: \t\t<help>
2126: \t\t\t<file>".$insertlist{"$tag.helpfile"}."</file>");
2127: if ($insertlist{"$tag.helpdesc"} ne '') {
2128: print XML ("
2129: \t\t\t<description>".$insertlist{"$tag.helpdesc"}."</description>");
2130: }
2131: print XML ("
2132: \t\t</help>");
2133: }
2134: if (defined($insertlist{"$tag.which"})) {
2135: print XML ("
2136: \t\t<allow>".join(',',sort(@{ $insertlist{"$tag.which"} }))."</allow>");
2137: }
2138: print XML ("
2139: \t</tag>");
2140: $i++;
2141: }
2142: print XML ("\n</insertlist>\n");
2143: close(XML);
2144: }
2145:
1.98 albertel 2146: sub description {
1.437 albertel 2147: my ($token)=@_;
2148: my $tag = &get_tag($token);
2149: return $insertlist{$tag.'.description'};
1.268 bowersj2 2150: }
2151:
2152: # Returns a list containing the help file, and the description
2153: sub helpinfo {
1.437 albertel 2154: my ($token)=@_;
2155: my $tag = &get_tag($token);
2156: return ($insertlist{$tag.'.helpfile'}, $insertlist{$tag.'.helpdesc'});
2157: }
2158:
2159: sub get_tag {
2160: my ($token)=@_;
2161: my $tagnum;
2162: my $tag=$token->[1];
2163: foreach my $namespace (reverse(@Apache::lonxml::namespace)) {
2164: my $testtag = $namespace.'::'.$tag;
2165: $tagnum = $insertlist{"$testtag.num"};
2166: last if (defined($tagnum));
2167: }
2168: if (!defined($tagnum)) {
2169: $tagnum = $Apache::lonxml::insertlist{"$tag.num"};
2170: }
2171: return $insertlist{"$tagnum.tag"};
1.98 albertel 2172: }
1.123 albertel 2173:
1.485 onken 2174: ############################################################
2175: # PDF-FORM-METHODS
2176:
2177: =pod
2178:
1.508 onken 2179: =item &print_pdf_radiobutton(fieldname, value)
1.485 onken 2180:
1.508 onken 2181: Returns a latexline to generate a PDF-Form-Radiobutton.
2182: Note: Radiobuttons with equal names are automaticly grouped
2183: in a selection-group.
1.485 onken 2184:
1.508 onken 2185: $fieldname: PDF internalname of the radiobutton(group)
2186: $value: Value of radiobutton
1.485 onken 2187:
2188: =cut
2189: sub print_pdf_radiobutton {
1.508 onken 2190: my ($fieldname, $value) = @_;
2191: return '\radioButton[\symbolchoice{circle}]{'
2192: .$fieldname.'}{10bp}{10bp}{'.$value.'}';
1.485 onken 2193: }
2194:
2195:
2196: =pod
2197:
2198: =item &print_pdf_start_combobox(fieldname)
2199:
2200: Starts a latexline to generate a PDF-Form-Combobox with text.
2201:
2202: $fieldname: PDF internal name of the Combobox
2203:
2204: =cut
2205: sub print_pdf_start_combobox {
2206: my $result;
2207: my ($fieldName) = @_;
2208: $result .= '\begin{tabularx}{\textwidth}{p{2.5cm}X}'."\n";
2209: $result .= '\comboBox[]{'.$fieldName.'}{2.3cm}{14bp}{'; #
2210:
2211: return $result;
2212: }
2213:
2214:
2215: =pod
2216:
2217: =item &print_pdf_add_combobox_option(options)
2218:
2219: Generates a latexline to add Options to a PDF-Form-ComboBox.
2220:
2221: $option: PDF internal name of the Combobox-Option
2222:
2223: =cut
2224: sub print_pdf_add_combobox_option {
2225:
2226: my $result;
2227: my ($option) = @_;
2228:
2229: $result .= '('.$option.')';
2230:
2231: return $result;
2232: }
2233:
2234:
2235: =pod
2236:
2237: =item &print_pdf_end_combobox(text) {
2238:
2239: Returns latexcode to end a PDF-Form-Combobox with text.
2240:
2241: =cut
2242: sub print_pdf_end_combobox {
2243: my $result;
2244: my ($text) = @_;
2245:
2246: $result .= '}&'.$text."\\\\\n";
2247: $result .= '\end{tabularx}' . "\n";
2248: $result .= '\hspace{2mm}' . "\n";
2249: return $result;
2250: }
2251:
2252:
2253: =pod
2254:
2255: =item &print_pdf_hiddenField(fieldname, user, domain)
2256:
2257: Returns a latexline to generate a PDF-Form-hiddenField with userdata.
2258:
2259: $fieldname label for hiddentextfield
2260: $user: name of user
2261: $domain: domain of user
2262:
2263: =cut
2264: sub print_pdf_hiddenfield {
2265: my $result;
2266: my ($fieldname, $user, $domain) = @_;
2267:
2268: $result .= '\textField [\F{\FHidden}\F{-\FPrint}\V{'.$domain.'&'.$user.'}]{'.$fieldname.'}{0in}{0in}'."\n";
2269:
2270: return $result;
2271: }
2272:
1.1 sakharuk 2273: 1;
2274: __END__
1.68 www 2275:
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