Annotation of loncom/xml/lonxml.pm, revision 1.521
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.521 ! www 4: # $Id: lonxml.pm,v 1.520 2011/10/13 01:54:21 www Exp $
1.139 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
1.316 albertel 39:
1.489 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();
1.520 www 115: use Apache::functionplotresponse();
1.79 www 116:
1.462 foxr 117: #==================================== Main subroutine: xmlparse
118:
1.72 albertel 119: #debugging control, to turn on debugging modify the correct handler
1.462 foxr 120:
1.72 albertel 121: $Apache::lonxml::debug=0;
1.206 albertel 122:
123: # keeps count of the number of warnings and errors generated in a parse
124: $warningcount=0;
125: $errorcount=0;
1.72 albertel 126:
127: #path to the directory containing the file currently being processed
128: @pwd=();
129:
130: #these two are used for capturing a subset of the output for later processing,
131: #don't touch them directly use &startredirection and &endredirection
132: @outputstack = ();
133: $redirection = 0;
134:
135: #controls wheter the <import> tag actually does
136: $import = 1;
137: @extlinks=();
138:
139: # meta mode is a bit weird only some output is to be turned off
140: #<output> tag turns metamode off (defined in londefdef.pm)
141: $metamode = 0;
142:
143: # turns on and of run::evaluate actually derefencing var refs
144: $evaluate = 1;
1.7 albertel 145:
1.74 albertel 146: # data structure for eidt mode, determines what tags can go into what other tags
147: %insertlist=();
1.68 www 148:
1.99 albertel 149: # stores the list of active tag namespaces
1.76 albertel 150: @namespace=();
151:
1.448 albertel 152: # stores all Scrit Vars displays for later showing
153: my @script_var_displays=();
154:
1.172 albertel 155: # a pointer the the Apache request object
156: $Apache::lonxml::request='';
157:
1.216 sakharuk 158: # a problem number counter, and check on ether it is used
1.237 sakharuk 159: $Apache::lonxml::counter=1;
1.204 albertel 160: $Apache::lonxml::counter_changed=0;
161:
1.462 foxr 162: # Part counter hash. In analysis mode, the
163: # problems can use this to record which parts increment the counter
164: # by how much. The counter subs will maintain this hash via
165: # their optional part parameters. Note that the assumption is that
166: # analysis is done in one request and therefore it is not necessary to
167: # save this information request-to-request.
168:
169:
170: %Apache::lonxml::counters_per_part = ();
171:
1.212 albertel 172: #internal check on whether to look at style defs
173: $Apache::lonxml::usestyle=1;
1.260 albertel 174:
175: #locations used to store the parameter string for style substitutions
176: $Apache::lonxml::style_values='';
177: $Apache::lonxml::style_end_values='';
1.212 albertel 178:
1.281 albertel 179: #array of ssi calls that need to occur after we are done parsing
180: @Apache::lonxml::ssi_info=();
181:
1.282 albertel 182: #should we do the postag variable interpolation
183: $Apache::lonxml::post_evaluate=1;
184:
1.295 albertel 185: #a header message to emit in the case of any generated warning or errors
186: $Apache::lonxml::warnings_error_header='';
187:
1.396 foxr 188: # Control whether or not LaTeX symbols should be substituted for their
189: # \ style equivalents...this may be turned off e.g. in an verbatim
190: # environment.
191:
192: $Apache::lonxml::substitute_LaTeX_symbols = 1; # Starts out on.
193:
194: sub enable_LaTeX_substitutions {
195: $Apache::lonxml::substitute_LaTeX_symbols = 1;
196: }
197: sub disable_LaTeX_substitutions {
198: $Apache::lonxml::substitute_LaTeX_symbols = 0;
199: }
200:
1.68 www 201: sub xmlend {
1.335 sakharuk 202: my ($target,$parser)=@_;
1.278 www 203: my $mode='xml';
204: my $status='OPEN';
1.368 albertel 205: if ($Apache::lonhomework::parsing_a_problem ||
206: $Apache::lonhomework::parsing_a_task ) {
1.278 www 207: $mode='problem';
208: $status=$Apache::inputtags::status[-1];
209: }
1.362 matthew 210: my $discussion;
1.379 albertel 211: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
212: ['LONCAPA_INTERNAL_no_discussion']);
1.372 albertel 213: if (! exists($env{'form.LONCAPA_INTERNAL_no_discussion'}) ||
214: $env{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true') {
1.362 matthew 215: $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
216: }
1.334 sakharuk 217: if ($target eq 'tex') {
1.335 sakharuk 218: $discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
1.334 sakharuk 219: &Apache::lonxml::newparser($parser,\$discussion,'');
220: return '';
221: }
1.405 albertel 222:
1.407 albertel 223: return $discussion;
1.119 www 224: }
225:
1.48 albertel 226: sub printalltags {
227: my $temp;
228: foreach $temp (sort keys %Apache::lonxml::alltags) {
1.141 albertel 229: &Apache::lonxml::debug("$temp -- ".
230: join(',',@{ $Apache::lonxml::alltags{$temp} }));
1.48 albertel 231: }
232: }
1.31 sakharuk 233:
1.3 sakharuk 234: sub xmlparse {
1.172 albertel 235: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 236:
1.172 albertel 237: &setup_globals($request,$target);
1.232 albertel 238: &Apache::inputtags::initialize_inputtags();
1.370 albertel 239: &Apache::bridgetask::initialize_bridgetask();
1.232 albertel 240: &Apache::outputtags::initialize_outputtags();
241: &Apache::edit::initialize_edit();
1.287 albertel 242: &Apache::londefdef::initialize_londefdef();
1.244 albertel 243:
1.178 www 244: #
245: # do we have a course style file?
246: #
247:
1.372 albertel 248: if ($env{'request.course.id'} && $env{'request.state'} ne 'construct') {
1.178 www 249: my $bodytext=
1.372 albertel 250: $env{'course.'.$env{'request.course.id'}.'.default_xml_style'};
1.178 www 251: if ($bodytext) {
1.337 albertel 252: foreach my $file (split(',',$bodytext)) {
253: my $location=&Apache::lonnet::filelocation('',$file);
254: my $styletext=&Apache::lonnet::getfile($location);
255: if ($styletext ne '-1') {
256: %style_for_target = (%style_for_target,
257: &Apache::style::styleparser($target,$styletext));
258: }
259: }
260: }
1.449 albertel 261: } elsif ($env{'construct.style'}
262: && ($env{'request.state'} eq 'construct')) {
1.372 albertel 263: my $location=&Apache::lonnet::filelocation('',$env{'construct.style'});
1.291 sakharuk 264: my $styletext=&Apache::lonnet::getfile($location);
1.449 albertel 265: if ($styletext ne '-1') {
266: %style_for_target = (%style_for_target,
267: &Apache::style::styleparser($target,$styletext));
268: }
1.178 www 269: }
1.255 sakharuk 270: #&printalltags();
1.16 albertel 271: my @pars = ();
1.372 albertel 272: my $pwd=$env{'request.filename'};
1.23 albertel 273: $pwd =~ s:/[^/]*$::;
274: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 275:
1.3 sakharuk 276: my $safeeval = new Safe;
1.40 albertel 277: my $safehole = new Safe::Hole;
1.82 ng 278: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 279: #-------------------- Redefinition of the target in the case of compound target
280:
281: ($target, my @tenta) = split('&&',$target);
282:
1.150 albertel 283: my @stack = ();
1.3 sakharuk 284: my @parstack = ();
1.358 albertel 285: &initdepth();
286: &init_alarm();
1.101 albertel 287: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
1.394 albertel 288: $safeeval,\%style_for_target,1);
1.255 sakharuk 289:
1.425 albertel 290: if (@stack) {
1.482 bisitz 291: &warning(&mt('At end of file some tags were still left unclosed:').
292: ' <tt><'.join('></tt>, <tt><',reverse(@stack)).
1.425 albertel 293: '></tt>');
294: }
1.372 albertel 295: if ($env{'request.uri'}) {
296: &writeallows($env{'request.uri'});
1.125 www 297: }
1.281 albertel 298: &do_registered_ssi();
1.204 albertel 299: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.393 albertel 300:
301: &clean_safespace($safeeval);
302:
1.448 albertel 303: if (@script_var_displays) {
304: $finaloutput .= join('',@script_var_displays);
305: undef(@script_var_displays);
306: }
1.469 albertel 307: &init_state();
1.372 albertel 308: if ($env{'form.return_only_error_and_warning_counts'}) {
1.473 www 309: if ($env{'request.filename'}=~/\.(html|htm|xml)$/i) {
310: my $error=&verify_html($content_file_string);
311: if ($error) { $errorcount++; }
312: }
1.361 www 313: return "$errorcount:$warningcount";
314: }
1.3 sakharuk 315: return $finaloutput;
1.106 www 316: }
317:
1.191 albertel 318: sub latex_special_symbols {
1.272 albertel 319: my ($string,$where)=@_;
1.396 foxr 320: #
321: # If e.g. in verbatim mode, then don't substitute.
322: # but return original string.
323: #
324: if (!($Apache::lonxml::substitute_LaTeX_symbols)) {
325: return $string;
326: }
1.235 sakharuk 327: if ($where eq 'header') {
1.414 foxr 328: $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10.
1.311 albertel 329: $string =~ s/(\$|%|\{|\})/\\$1/g;
330: $string=&Apache::lonprintout::character_chart($string);
331: # any & or # leftover should be safe to just escape
332: $string=~s/([^\\])\&/$1\\\&/g;
333: $string=~s/([^\\])\#/$1\\\#/g;
1.415 foxr 334: $string =~ s/_/\\_/g; # _ -> \_
335: $string =~ s/\^/\\\^{}/g; # ^ -> \^{}
1.229 sakharuk 336: } else {
1.312 albertel 337: $string=~s/\\/\\ensuremath{\\backslash}/g;
1.367 albertel 338: $string=~s/\\\%|\%/\\\%/g;
339: $string=~s/\\{|{/\\{/g;
340: $string=~s/\\}|}/\\}/g;
1.378 albertel 341: $string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
1.367 albertel 342: $string=~s/\\\$|\$/\\\$/g;
343: $string=~s/\\\_|\_/\\\_/g;
1.313 albertel 344: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
1.310 sakharuk 345: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
1.311 albertel 346: $string=&Apache::lonprintout::character_chart($string);
347: # any & or # leftover should be safe to just escape
1.367 albertel 348: $string=~s/\\\&|\&/\\\&/g;
349: $string=~s/\\\#|\#/\\\#/g;
1.332 sakharuk 350: $string=~s/\|/\$\\mid\$/g;
1.310 sakharuk 351: #single { or } How to escape?
1.229 sakharuk 352: }
1.272 albertel 353: return $string;
1.188 sakharuk 354: }
355:
1.101 albertel 356: sub inner_xmlparse {
1.394 albertel 357: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target,$start)=@_;
1.101 albertel 358: my $finaloutput = '';
359: my $result;
360: my $token;
1.258 albertel 361: my $dontpop=0;
1.389 albertel 362: my $startredirection = $Apache::lonxml::redirection;
1.101 albertel 363: while ( $#$pars > -1 ) {
364: while ($token = $$pars['-1']->get_token) {
1.261 albertel 365: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
1.101 albertel 366: if ($metamode<1) {
1.190 albertel 367: my $text=$token->[1];
1.193 albertel 368: if ($token->[0] eq 'C' && $target eq 'tex') {
1.239 sakharuk 369: $text = '';
370: # $text = '%'.$text."\n";
1.182 sakharuk 371: }
1.190 albertel 372: $result.=$text;
1.101 albertel 373: }
1.261 albertel 374: } elsif (($token->[0] eq 'D')) {
375: if ($metamode<1 && $target eq 'web') {
376: my $text=$token->[1];
377: $result.=$text;
378: }
1.101 albertel 379: } elsif ($token->[0] eq 'PI') {
1.261 albertel 380: if ($metamode<1 && $target eq 'web') {
1.101 albertel 381: $result=$token->[2];
382: }
383: } elsif ($token->[0] eq 'S') {
1.140 albertel 384: # add tag to stack
1.101 albertel 385: push (@$stack,$token->[1]);
386: # add parameters list to another stack
387: push (@$parstack,&parstring($token));
1.140 albertel 388: &increasedepth($token);
1.212 albertel 389: if ($Apache::lonxml::usestyle &&
390: exists($$style_for_target{$token->[1]})) {
391: $Apache::lonxml::usestyle=0;
392: my $string=$$style_for_target{$token->[1]}.
393: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
394: &Apache::lonxml::newparser($pars,\$string);
1.257 albertel 395: $Apache::lonxml::style_values=$$parstack[-1];
1.259 albertel 396: $Apache::lonxml::style_end_values=$$parstack[-1];
1.101 albertel 397: } else {
398: $result = &callsub("start_$token->[1]", $target, $token, $stack,
399: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 400: }
1.101 albertel 401: } elsif ($token->[0] eq 'E') {
1.212 albertel 402: if ($Apache::lonxml::usestyle &&
403: exists($$style_for_target{'/'."$token->[1]"})) {
404: $Apache::lonxml::usestyle=0;
405: my $string=$$style_for_target{'/'.$token->[1]}.
1.258 albertel 406: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
1.212 albertel 407: &Apache::lonxml::newparser($pars,\$string);
1.259 albertel 408: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
409: $Apache::lonxml::style_end_values='';
1.258 albertel 410: $dontpop=1;
1.101 albertel 411: } else {
1.258 albertel 412: #clear out any tags that didn't end
413: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
414: my $lasttag=$$stack[-1];
1.317 albertel 415: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
1.483 bisitz 416: &Apache::lonxml::warning(&mt('Using tag [_1] on line [_2] as end tag to [_3]','</'.$token->[1].'>','.$token->[3].','<'.$$stack[-1].'>'));
1.258 albertel 417: last;
418: } else {
1.483 bisitz 419: &Apache::lonxml::warning(&mt('Found tag [_1] on line [_2] when looking for [_3] in file.','</'.$token->[1].'>',$token->[3],'</'.$$stack[-1].'>'));
1.258 albertel 420: &end_tag($stack,$parstack,$token);
421: }
422: }
423: $result = &callsub("end_$token->[1]", $target, $token, $stack,
424: $parstack, $pars,$safeeval, $style_for_target);
1.101 albertel 425: }
426: } else {
427: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
428: }
429: #evaluate variable refs in result
1.282 albertel 430: if ($Apache::lonxml::post_evaluate &&$result ne "") {
1.257 albertel 431: my $extras;
432: if (!$Apache::lonxml::usestyle) {
433: $extras=$Apache::lonxml::style_values;
434: }
1.488 raeburn 435: if ( $#$parstack > -1 ) {
436: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
437: } else {
438: $result= &Apache::run::evaluate($result,$safeeval,$extras);
1.487 raeburn 439: }
1.163 albertel 440: }
1.282 albertel 441: $Apache::lonxml::post_evaluate=1;
442:
1.190 albertel 443: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
1.249 albertel 444: #Style file definitions should be correct
1.250 albertel 445: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
1.311 albertel 446: $result=&latex_special_symbols($result);
1.249 albertel 447: }
1.190 albertel 448: }
449:
1.169 albertel 450: if ($Apache::lonxml::redirection) {
451: $Apache::lonxml::outputstack['-1'] .= $result;
452: } else {
453: $finaloutput.=$result;
454: }
455: $result = '';
456:
1.258 albertel 457: if ($token->[0] eq 'E' && !$dontpop) {
1.101 albertel 458: &end_tag($stack,$parstack,$token);
459: }
1.258 albertel 460: $dontpop=0;
1.224 albertel 461: }
1.212 albertel 462: if ($#$pars > -1) {
463: pop @$pars;
464: pop @Apache::lonxml::pwd;
465: }
1.101 albertel 466: }
467:
468: # if ($target eq 'meta') {
469: # $finaloutput.=&endredirection;
470: # }
471:
1.394 albertel 472: if ( $start && $target eq 'grade') { &endredirection(); }
1.389 albertel 473: if ( $Apache::lonxml::redirection > $startredirection) {
474: while ($Apache::lonxml::redirection > $startredirection) {
475: $finaloutput .= &endredirection();
1.387 albertel 476: }
477: }
1.101 albertel 478: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
479: $finaloutput=&afterburn($finaloutput);
1.509 www 480: }
481: if ($target eq 'modified') {
482: # if modfied, handle startpart and endpart
483: $finaloutput=~s/\<startpartmarker[^\>]*\>(.*)\<endpartmarker[^\>]*\>/<part>$1<\/part>/gs;
1.216 sakharuk 484: }
1.101 albertel 485: return $finaloutput;
486: }
1.67 www 487:
1.318 matthew 488: ##
489: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
490: ## otherwise do not call it as we do not know what it is.
491: ##
1.7 albertel 492: sub callsub {
1.84 albertel 493: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 494: my $currentstring='';
1.72 albertel 495: my $nodefault;
1.7 albertel 496: {
1.59 albertel 497: my $sub1;
1.7 albertel 498: no strict 'refs';
1.68 www 499: my $tag=$token->[1];
1.236 www 500: # get utterly rid of extended html tags
501: if ($tag=~/^x\-/i) { return ''; }
1.141 albertel 502: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 503: if (!$space) {
1.141 albertel 504: $tag=~tr/A-Z/a-z/;
1.68 www 505: $sub=~tr/A-Z/a-z/;
1.141 albertel 506: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 507: }
1.97 albertel 508:
509: my $deleted=0;
510: if (($token->[0] eq 'S') && ($target eq 'modified')) {
511: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
512: $parstack,$parser,$safeeval,
513: $style);
514: }
515: if (!$deleted) {
516: if ($space) {
1.220 albertel 517: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 518: $sub1="$space\:\:$sub";
519: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
520: $parstack,$parser,$safeeval,
521: $style);
522: } else {
1.318 matthew 523: if ($target eq 'tex') {
524: # throw away tag name
525: return '';
526: }
1.220 albertel 527: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 528: if ($metamode <1) {
529: if (defined($token->[4]) && ($metamode < 1)) {
530: $currentstring = $token->[4];
531: } else {
532: $currentstring = $token->[2];
533: }
1.62 sakharuk 534: }
1.7 albertel 535: }
1.97 albertel 536: # &Apache::lonxml::debug("nodefalt:$nodefault:");
537: if ($currentstring eq '' && $nodefault eq '') {
538: if ($target eq 'edit') {
1.220 albertel 539: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 540: if ($token->[0] eq 'S') {
541: $currentstring = &Apache::edit::tag_start($target,$token);
542: } elsif ($token->[0] eq 'E') {
543: $currentstring = &Apache::edit::tag_end($target,$token);
544: }
1.441 albertel 545: }
546: }
547: if ($target eq 'modified' && $nodefault eq '') {
548: if ($currentstring eq '') {
549: if ($token->[0] eq 'S') {
550: $currentstring = $token->[4];
551: } elsif ($token->[0] eq 'E') {
552: $currentstring = $token->[2];
553: } else {
554: $currentstring = $token->[2];
555: }
556: }
1.97 albertel 557: if ($token->[0] eq 'S') {
1.447 albertel 558: $currentstring.=&Apache::edit::handle_insert();
1.210 www 559: } elsif ($token->[0] eq 'E') {
1.447 albertel 560: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 561: }
1.72 albertel 562: }
1.7 albertel 563: }
564: use strict 'refs';
565: }
566: return $currentstring;
1.82 ng 567: }
568:
1.465 albertel 569: {
570: my %state;
571:
572: sub init_state {
573: undef(%state);
574: }
575:
576: sub set_state {
577: my ($key,$value) = @_;
578: $state{$key} = $value;
579: return $value;
580: }
581: sub get_state {
582: my ($key) = @_;
583: return $state{$key};
584: }
585: }
586:
1.96 albertel 587: sub setup_globals {
1.172 albertel 588: my ($request,$target)=@_;
589: $Apache::lonxml::request=$request;
1.205 www 590: $errorcount=0;
591: $warningcount=0;
1.490 www 592: $Apache::lonxml::internal_error=0;
1.207 albertel 593: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 594: $Apache::lonxml::usestyle=1;
1.204 albertel 595: &init_counter();
1.462 foxr 596: &clear_bubble_lines_for_part();
1.465 albertel 597: &init_state();
1.469 albertel 598: &set_state('target',$target);
1.101 albertel 599: @Apache::lonxml::pwd=();
1.124 albertel 600: @Apache::lonxml::extlinks=();
1.448 albertel 601: @script_var_displays=();
1.281 albertel 602: @Apache::lonxml::ssi_info=();
1.282 albertel 603: $Apache::lonxml::post_evaluate=1;
1.295 albertel 604: $Apache::lonxml::warnings_error_header='';
1.397 albertel 605: $Apache::lonxml::substitute_LaTeX_symbols = 1;
1.96 albertel 606: if ($target eq 'meta') {
607: $Apache::lonxml::redirection = 0;
608: $Apache::lonxml::metamode = 1;
609: $Apache::lonxml::evaluate = 1;
610: $Apache::lonxml::import = 0;
1.129 albertel 611: } elsif ($target eq 'answer') {
612: $Apache::lonxml::redirection = 0;
613: $Apache::lonxml::metamode = 1;
614: $Apache::lonxml::evaluate = 1;
615: $Apache::lonxml::import = 1;
1.96 albertel 616: } elsif ($target eq 'grade') {
1.387 albertel 617: &startredirection(); #ended in inner_xmlparse on exit
1.96 albertel 618: $Apache::lonxml::metamode = 0;
619: $Apache::lonxml::evaluate = 1;
620: $Apache::lonxml::import = 1;
621: } elsif ($target eq 'modified') {
622: $Apache::lonxml::redirection = 0;
623: $Apache::lonxml::metamode = 0;
624: $Apache::lonxml::evaluate = 0;
625: $Apache::lonxml::import = 0;
626: } elsif ($target eq 'edit') {
627: $Apache::lonxml::redirection = 0;
628: $Apache::lonxml::metamode = 0;
629: $Apache::lonxml::evaluate = 0;
630: $Apache::lonxml::import = 0;
1.163 albertel 631: } elsif ($target eq 'analyze') {
632: $Apache::lonxml::redirection = 0;
633: $Apache::lonxml::metamode = 0;
634: $Apache::lonxml::evaluate = 1;
635: $Apache::lonxml::import = 1;
1.96 albertel 636: } else {
637: $Apache::lonxml::redirection = 0;
638: $Apache::lonxml::metamode = 0;
639: $Apache::lonxml::evaluate = 1;
640: $Apache::lonxml::import = 1;
641: }
642: }
643:
1.82 ng 644: sub init_safespace {
645: my ($target,$safeeval,$safehole,$safeinit) = @_;
1.511 foxr 646: $safeeval->reval('use Math::Complex;');
647: $safeeval->reval('use LaTeX::Table;');
1.393 albertel 648: $safeeval->deny_only(':dangerous');
1.383 albertel 649: $safeeval->permit_only(":default");
1.82 ng 650: $safeeval->permit("entereval");
651: $safeeval->permit(":base_math");
652: $safeeval->permit("sort");
1.286 albertel 653: $safeeval->permit("time");
1.480 www 654: $safeeval->permit("caller");
1.371 albertel 655: $safeeval->deny("rand");
656: $safeeval->deny("srand");
1.82 ng 657: $safeeval->deny(":base_io");
1.102 albertel 658: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.251 albertel 659: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
1.82 ng 660: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
1.324 albertel 661: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
662: '&chem_standard_order');
1.369 albertel 663: $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status');
1.471 bisitz 664: $safehole->wrap(\&Apache::response::implicit_multiplication,$safeeval,'&implicit_multiplication');
1.324 albertel 665:
1.431 www 666: $safehole->wrap(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval');
1.432 www 667: $safehole->wrap(\&Apache::lonmaxima::maxima_check,$safeeval,'&maxima_check');
1.433 albertel 668: $safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval,
669: '&maxima_cas_formula_fix');
670:
1.494 www 671: $safehole->wrap(\&Apache::lonr::r_eval,$safeeval,'&r_eval');
1.497 www 672: $safehole->wrap(\&Apache::lonr::Rentry,$safeeval,'&Rentry');
673: $safehole->wrap(\&Apache::lonr::Rarray,$safeeval,'&Rarray');
1.494 www 674: $safehole->wrap(\&Apache::lonr::r_check,$safeeval,'&r_check');
675: $safehole->wrap(\&Apache::lonr::r_cas_formula_fix,$safeeval,
676: '&r_cas_formula_fix');
677:
1.433 albertel 678: $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
679: '&capa_formula_fix');
1.431 www 680:
1.480 www 681: $safehole->wrap(\&Apache::lonlocal::locallocaltime,$safeeval,
682: '&locallocaltime');
683:
1.82 ng 684: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
685: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
686: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
687: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
688: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
689: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
690: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
691: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
692: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
693: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
694: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
695: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
696: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
697: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
698: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
699: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
700: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
701: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
702: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 703:
704: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
705: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
706: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
707: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
708: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
709: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
710: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
711: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
712: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
713: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
714: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
715: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
716: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
717: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
718: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
719: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
720: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
721: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
722: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
723: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
724: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
725: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
726:
1.383 albertel 727: $safehole->wrap(\&Math::Cephes::Matrix::mat,$safeeval,'&mat');
728: $safehole->wrap(\&Math::Cephes::Matrix::new,$safeeval,
729: '&Math::Cephes::Matrix::new');
730: $safehole->wrap(\&Math::Cephes::Matrix::coef,$safeeval,
731: '&Math::Cephes::Matrix::coef');
732: $safehole->wrap(\&Math::Cephes::Matrix::clr,$safeeval,
733: '&Math::Cephes::Matrix::clr');
734: $safehole->wrap(\&Math::Cephes::Matrix::add,$safeeval,
735: '&Math::Cephes::Matrix::add');
736: $safehole->wrap(\&Math::Cephes::Matrix::sub,$safeeval,
737: '&Math::Cephes::Matrix::sub');
738: $safehole->wrap(\&Math::Cephes::Matrix::mul,$safeeval,
739: '&Math::Cephes::Matrix::mul');
740: $safehole->wrap(\&Math::Cephes::Matrix::div,$safeeval,
741: '&Math::Cephes::Matrix::div');
742: $safehole->wrap(\&Math::Cephes::Matrix::inv,$safeeval,
743: '&Math::Cephes::Matrix::inv');
744: $safehole->wrap(\&Math::Cephes::Matrix::transp,$safeeval,
745: '&Math::Cephes::Matrix::transp');
746: $safehole->wrap(\&Math::Cephes::Matrix::simq,$safeeval,
747: '&Math::Cephes::Matrix::simq');
748: $safehole->wrap(\&Math::Cephes::Matrix::mat_to_vec,$safeeval,
749: '&Math::Cephes::Matrix::mat_to_vec');
750: $safehole->wrap(\&Math::Cephes::Matrix::vec_to_mat,$safeeval,
751: '&Math::Cephes::Matrix::vec_to_mat');
752: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
753: '&Math::Cephes::Matrix::check');
754: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
755: '&Math::Cephes::Matrix::check');
756:
1.215 albertel 757: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
758: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
759: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
760: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
761: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
762: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
763:
1.91 ng 764: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
765: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
766: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
767: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
768: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
769: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
770: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
771: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
772: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
773: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
774: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 775: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 776: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
777: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
778: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
779: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
780: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
781: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
782: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
783: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
784: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
1.458 albertel 785: $safehole->wrap(\&Apache::loncommon::languages,$safeeval,'&languages');
1.305 albertel 786: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
1.311 albertel 787: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
1.420 albertel 788: $safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
789: $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS');
1.322 albertel 790: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
1.521 ! www 791: $safehole->wrap(\&Apache::functionplotresponse::fpr_val,$safeeval,'&fpr_val');
1.520 www 792: $safehole->wrap(\&Apache::functionplotresponse::fpr_f,$safeeval,'&fpr_f');
793: $safehole->wrap(\&Apache::functionplotresponse::fpr_dfdx,$safeeval,'&fpr_dfdx');
794: $safehole->wrap(\&Apache::functionplotresponse::fpr_d2fdx2,$safeeval,'&fpr_d2fdx2');
795:
1.430 albertel 796: # use Data::Dumper;
797: # $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper');
1.82 ng 798: #need to inspect this class of ops
799: # $safeeval->deny(":base_orig");
1.331 albertel 800: $safeeval->permit("require");
1.91 ng 801: $safeinit .= ';$external::target="'.$target.'";';
1.82 ng 802: &Apache::run::run($safeinit,$safeeval);
1.373 albertel 803: &initialize_rndseed($safeeval);
804: }
1.303 albertel 805:
1.393 albertel 806: sub clean_safespace {
807: my ($safeeval) = @_;
808: delete_package_recurse($safeeval->{Root});
809: }
810:
811: sub delete_package_recurse {
812: my ($package) = @_;
813: my @subp;
814: {
815: no strict 'refs';
816: while (my ($key,$val) = each(%{*{"$package\::"}})) {
817: if (!defined($val)) { next; }
818: local (*ENTRY) = $val;
819: if (defined *ENTRY{HASH} && $key =~ /::$/ &&
820: $key ne "main::" && $key ne "<none>::")
821: {
822: my ($p) = $package ne "main" ? "$package\::" : "";
823: ($p .= $key) =~ s/::$//;
824: push(@subp,$p);
825: }
826: }
827: }
828: foreach my $p (@subp) {
829: delete_package_recurse($p);
830: }
831: Symbol::delete_package($package);
832: }
833:
1.373 albertel 834: sub initialize_rndseed {
835: my ($safeeval)=@_;
836: my $rndseed;
1.423 albertel 837: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.373 albertel 838: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
839: my $safeinit = '$external::randomseed="'.$rndseed.'";';
840: &Apache::lonxml::debug("Setting rndseed to $rndseed");
841: &Apache::run::run($safeinit,$safeeval);
1.207 albertel 842: }
843:
844: sub default_homework_load {
845: my ($safeeval)=@_;
846: &Apache::lonxml::debug('Loading default_homework');
847: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
1.241 albertel 848: if ($default eq -1) {
1.207 albertel 849: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
850: } else {
851: &Apache::run::run($default,$safeeval);
852: $Apache::lonxml::default_homework_loaded=1;
853: }
1.17 albertel 854: }
855:
1.358 albertel 856: {
857: my $alarm_depth;
858: sub init_alarm {
859: alarm(0);
860: $alarm_depth=0;
861: }
862:
863: sub start_alarm {
864: if ($alarm_depth<1) {
865: my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'});
866: if ($old) {
867: &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur.");
868: }
869: }
870: $alarm_depth++;
871: }
872:
873: sub end_alarm {
874: $alarm_depth--;
875: if ($alarm_depth<1) { alarm(0); }
876: }
877: }
1.328 albertel 878: my $metamode_was;
1.55 albertel 879: sub startredirection {
1.328 albertel 880: if (!$Apache::lonxml::redirection) {
881: $metamode_was=$Apache::lonxml::metamode;
882: }
883: $Apache::lonxml::metamode=0;
884: $Apache::lonxml::redirection++;
885: push (@Apache::lonxml::outputstack, '');
1.55 albertel 886: }
887:
888: sub endredirection {
1.328 albertel 889: if (!$Apache::lonxml::redirection) {
1.380 www 890: &Apache::lonxml::error("Endredirection was called before a startredirection, perhaps you have unbalanced tags. Some debugging information:".join ":",caller);
1.328 albertel 891: return '';
892: }
893: $Apache::lonxml::redirection--;
894: if (!$Apache::lonxml::redirection) {
895: $Apache::lonxml::metamode=$metamode_was;
896: }
897: pop @Apache::lonxml::outputstack;
1.97 albertel 898: }
1.459 albertel 899: sub in_redirection {
900: return ($Apache::lonxml::redirection > 0)
901: }
1.97 albertel 902:
903: sub end_tag {
904: my ($tagstack,$parstack,$token)=@_;
905: pop(@$tagstack);
906: pop(@$parstack);
907: &decreasedepth($token);
1.55 albertel 908: }
909:
1.17 albertel 910: sub initdepth {
911: @Apache::lonxml::depthcounter=();
1.439 albertel 912: undef($Apache::lonxml::last_depth_count);
1.17 albertel 913: }
914:
1.438 albertel 915:
1.339 albertel 916: my @timers;
917: my $lasttime;
1.438 albertel 918: # @Apache::lonxml::depthcounter -> count of tags that exist so
919: # far at each level
1.439 albertel 920: # $Apache::lonxml::last_depth_count -> when ascending, need to
921: # remember the count for the level below the current level (for
922: # example going from 1_2 -> 1 -> 1_3 need to remember the 2 )
1.438 albertel 923:
1.17 albertel 924: sub increasedepth {
1.19 albertel 925: my ($token) = @_;
1.439 albertel 926: push(@Apache::lonxml::depthcounter,$Apache::lonxml::last_depth_count+1);
927: undef($Apache::lonxml::last_depth_count);
1.340 albertel 928: my $time;
929: if ($Apache::lonxml::debug eq "1") {
930: push(@timers,[&gettimeofday()]);
931: $time=&tv_interval($lasttime);
932: $lasttime=[&gettimeofday()];
933: }
1.439 albertel 934: my $spacing=' 'x($#Apache::lonxml::depthcounter);
1.438 albertel 935: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
1.439 albertel 936: # &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time");
1.54 albertel 937: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 938: }
939:
940: sub decreasedepth {
1.19 albertel 941: my ($token) = @_;
1.439 albertel 942: if ( $#Apache::lonxml::depthcounter == -1) {
943: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1.43 albertel 944: }
1.439 albertel 945: $Apache::lonxml::last_depth_count = pop(@Apache::lonxml::depthcounter);
946:
1.340 albertel 947: my ($timer,$time);
948: if ($Apache::lonxml::debug eq "1") {
949: $timer=pop(@timers);
950: $time=&tv_interval($lasttime);
951: $lasttime=[&gettimeofday()];
952: }
1.439 albertel 953: my $spacing=' 'x($#Apache::lonxml::depthcounter);
954: $Apache::lonxml::curdepth = join('_',@Apache::lonxml::depthcounter);
955: # &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time : ".&tv_interval($timer));
1.54 albertel 956: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 957: }
1.19 albertel 958:
1.399 albertel 959: sub get_id {
960: my ($parstack,$safeeval)=@_;
961: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.449 albertel 962: if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) {
1.498 bisitz 963: &error(&mt('ID [_1] contains invalid characters. IDs are only allowed to contain letters, numbers, spaces and -','"<tt>'.$id.'</tt>"'));
1.399 albertel 964: }
965: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
966: return $id;
967: }
968:
1.180 albertel 969: sub get_all_text_unbalanced {
1.190 albertel 970: #there is a copy of this in lonpublisher.pm
1.326 albertel 971: my($tag,$pars)= @_;
972: my $token;
973: my $result='';
974: $tag='<'.$tag.'>';
975: while ($token = $$pars[-1]->get_token) {
976: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.386 albertel 977: if ($token->[0] eq 'T' && $token->[2]) {
1.382 albertel 978: $result.='<![CDATA['.$token->[1].']]>';
979: } else {
980: $result.=$token->[1];
981: }
1.326 albertel 982: } elsif ($token->[0] eq 'PI') {
983: $result.=$token->[2];
984: } elsif ($token->[0] eq 'S') {
985: $result.=$token->[4];
986: } elsif ($token->[0] eq 'E') {
987: $result.=$token->[2];
988: }
989: if ($result =~ /\Q$tag\E/is) {
990: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
991: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
992: #&Apache::lonxml::debug('Result is :'.$1);
993: $redo=$tag.$redo;
994: &Apache::lonxml::newparser($pars,\$redo);
995: last;
996: }
997: }
998: return $result
1.462 foxr 999:
1.204 albertel 1000: }
1001:
1.462 foxr 1002: #########################################################################
1003: # #
1004: # bubble line counter management #
1005: # #
1006: #########################################################################
1007:
1.447 albertel 1008: =pod
1009:
1010: For bubble grading mode and exam bubble printing mode, the tracking of
1011: the current 'bubble line number' is stored in the %env element
1012: 'form.counter', and is modifed and handled by the following routines.
1013:
1014: The value of it is stored in $Apache:lonxml::counter when live and
1015: stored back to env after done.
1016:
1017: =item &increment_counter($increment);
1018:
1019: Increments the internal counter environment variable a specified amount
1020:
1021: Optional Arguments:
1022: $increment - amount to increment by (defaults to 1)
1.462 foxr 1023: Also 1 if the value is negative or zero.
1.467 foxr 1024: $part_response - A concatenation of the part and response id
1025: identifying exactly what is being 'answered'.
1026:
1.447 albertel 1027:
1028: =cut
1029:
1.204 albertel 1030: sub increment_counter {
1.467 foxr 1031: my ($increment, $part_response) = @_;
1.481 raeburn 1032: if ($env{'form.grade_noincrement'}) { return; }
1.462 foxr 1033: if (!defined($increment) || $increment le 0) {
1034: $increment = 1;
1035: }
1036: $Apache::lonxml::counter += $increment;
1037:
1.466 foxr 1038: # If the caller supplied the response_id parameter,
1.462 foxr 1039: # Maintain its counter.. creating if necessary.
1040:
1.470 albertel 1041: if (defined($part_response)) {
1.467 foxr 1042: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1043: $Apache::lonxml::counters_per_part{$part_response} = 0;
1.462 foxr 1044: }
1.467 foxr 1045: $Apache::lonxml::counters_per_part{$part_response} += $increment;
1046: my $new_value = $Apache::lonxml::counters_per_part{$part_response};
1.247 albertel 1047: }
1.462 foxr 1048:
1.289 sakharuk 1049: $Apache::lonxml::counter_changed=1;
1.204 albertel 1050: }
1051:
1.447 albertel 1052: =pod
1053:
1.461 foxr 1054: =item &init_counter($increment);
1.447 albertel 1055:
1056: Initialize the internal counter environment variable
1057:
1058: =cut
1059:
1.204 albertel 1060: sub init_counter {
1.391 albertel 1061: if ($env{'request.state'} eq 'construct') {
1062: $Apache::lonxml::counter=1;
1063: $Apache::lonxml::counter_changed=1;
1064: } elsif (defined($env{'form.counter'})) {
1.372 albertel 1065: $Apache::lonxml::counter=$env{'form.counter'};
1.247 albertel 1066: $Apache::lonxml::counter_changed=0;
1.237 sakharuk 1067: } else {
1.204 albertel 1068: $Apache::lonxml::counter=1;
1.247 albertel 1069: $Apache::lonxml::counter_changed=1;
1.204 albertel 1070: }
1071: }
1072:
1073: sub store_counter {
1.474 raeburn 1074: &Apache::lonnet::appenv({'form.counter' => $Apache::lonxml::counter});
1.401 albertel 1075: $Apache::lonxml::counter_changed=0;
1.204 albertel 1076: return '';
1.180 albertel 1077: }
1078:
1.398 albertel 1079: {
1080: my $state;
1081: sub clear_problem_counter {
1082: undef($state);
1083: &Apache::lonnet::delenv('form.counter');
1084: &Apache::lonxml::init_counter();
1085: &Apache::lonxml::store_counter();
1086: }
1087:
1088: sub remember_problem_counter {
1.422 albertel 1089: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.398 albertel 1090: $state = $env{'form.counter'};
1091: }
1092:
1093: sub restore_problem_counter {
1094: if (defined($state)) {
1.474 raeburn 1095: &Apache::lonnet::appenv({'form.counter' => $state});
1.398 albertel 1096: }
1097: }
1.401 albertel 1098: sub get_problem_counter {
1099: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.422 albertel 1100: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.401 albertel 1101: return $env{'form.counter'};
1102: }
1.398 albertel 1103: }
1104:
1.462 foxr 1105: =pod
1106:
1.468 albertel 1107: =item bubble_lines_for_part(part_response)
1.462 foxr 1108:
1109: Returns the number of lines required to get a response for
1.467 foxr 1110: $part_response (this is just $Apache::lonxml::counters_per_part{$part_response}
1.462 foxr 1111:
1112: =cut
1113:
1114: sub bubble_lines_for_part {
1.467 foxr 1115: my ($part_response) = @_;
1.462 foxr 1116:
1.467 foxr 1117: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1.462 foxr 1118: return 0;
1119: } else {
1.467 foxr 1120: return $Apache::lonxml::counters_per_part{$part_response};
1.462 foxr 1121: }
1122: }
1123:
1124: =pod
1125:
1126: =item clear_bubble_lines_for_part
1127:
1128: Clears the hash of bubble lines per part. If a caller
1129: needs to analyze several resources this should be called between
1130: resources to reset the hash for each problem being analyzed.
1131:
1132: =cut
1133:
1134: sub clear_bubble_lines_for_part {
1135: undef(%Apache::lonxml::counters_per_part);
1136: }
1137:
1138: =pod
1139:
1.468 albertel 1140: =item set_bubble_lines(part_response, value)
1.462 foxr 1141:
1142: If there is a problem part, that for whatever reason
1143: requires bubble lines that are not
1144: the same as the counter increment, it can call this sub during
1145: analysis to set its hash value explicitly.
1146:
1147: =cut
1148:
1149: sub set_bubble_lines {
1.467 foxr 1150: my ($part_response, $value) = @_;
1.462 foxr 1151:
1.467 foxr 1152: $Apache::lonxml::counters_per_part{$part_response} = $value;
1.462 foxr 1153: }
1154:
1155: =pod
1156:
1157: =item get_bubble_line_hash
1158:
1159: Returns the current bubble line hash. This is assumed to
1160: be small so we return a copy
1161:
1162:
1163: =cut
1164:
1165: sub get_bubble_line_hash {
1166: return %Apache::lonxml::counters_per_part;
1167: }
1168:
1169:
1170: #--------------------------------------------------
1171:
1.19 albertel 1172: sub get_all_text {
1.270 albertel 1173: my($tag,$pars,$style)= @_;
1174: my $gotfullstack=1;
1175: if (ref($pars) ne 'ARRAY') {
1176: $gotfullstack=0;
1177: $pars=[$pars];
1178: }
1179: if (ref($style) ne 'HASH') {
1180: $style={};
1181: }
1182: my $depth=0;
1183: my $token;
1184: my $result='';
1185: if ( $tag =~ m:^/: ) {
1186: my $tag=substr($tag,1);
1187: #&Apache::lonxml::debug("have:$tag:");
1188: my $top_empty=0;
1189: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
1190: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
1191: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
1192: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.382 albertel 1193: if ($token->[2]) {
1194: $result.='<![CDATA['.$token->[1].']]>';
1195: } else {
1196: $result.=$token->[1];
1197: }
1.270 albertel 1198: } elsif ($token->[0] eq 'PI') {
1199: $result.=$token->[2];
1200: } elsif ($token->[0] eq 'S') {
1.316 albertel 1201: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
1202: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1203: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1204: $result.=$token->[4];
1205: } elsif ($token->[0] eq 'E') {
1.316 albertel 1206: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1.270 albertel 1207: #skip sending back the last end tag
1.283 albertel 1208: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1.270 albertel 1209: my $string=
1210: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
1211: $$style{'/'.$token->[1]}.
1212: $token->[2].
1213: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
1214: &Apache::lonxml::newparser($pars,\$string);
1215: #&Apache::lonxml::debug("reParsing $string");
1216: next;
1217: }
1218: if ($depth > -1) {
1219: $result.=$token->[2];
1220: } else {
1221: $$pars[-1]->unget_token($token);
1222: }
1223: }
1224: }
1225: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
1226: if (($depth >=0) && ($#$pars > 0) ) {
1227: pop(@$pars);
1228: pop(@Apache::lonxml::pwd);
1229: }
1230: }
1231: if ($top_empty && $depth >= 0) {
1232: #never found the end tag ran out of text, throw error send back blank
1233: &error('Never found end tag for <'.$tag.
1234: '> current string <pre>'.
1.314 albertel 1235: &HTML::Entities::encode($result,'<>&"').
1.270 albertel 1236: '</pre>');
1237: if ($gotfullstack) {
1238: my $newstring='</'.$tag.'>'.$result;
1239: &Apache::lonxml::newparser($pars,\$newstring);
1240: }
1241: $result='';
1242: }
1243: } else {
1244: while ($#$pars > -1) {
1245: while ($token = $$pars[-1]->get_token) {
1246: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
1247: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
1248: ($token->[0] eq 'D')) {
1.382 albertel 1249: if ($token->[2]) {
1250: $result.='<![CDATA['.$token->[1].']]>';
1251: } else {
1252: $result.=$token->[1];
1253: }
1.270 albertel 1254: } elsif ($token->[0] eq 'PI') {
1255: $result.=$token->[2];
1256: } elsif ($token->[0] eq 'S') {
1.316 albertel 1257: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1.270 albertel 1258: $$pars[-1]->unget_token($token); last;
1259: } else {
1260: $result.=$token->[4];
1261: }
1.316 albertel 1262: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1263: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1264: } elsif ($token->[0] eq 'E') {
1265: $result.=$token->[2];
1266: }
1267: }
1268: if (($#$pars > 0) ) {
1269: pop(@$pars);
1270: pop(@Apache::lonxml::pwd);
1271: } else { last; }
1272: }
1273: }
1274: #&Apache::lonxml::debug("Exit:$result:");
1275: return $result
1.19 albertel 1276: }
1277:
1.23 albertel 1278: sub newparser {
1279: my ($parser,$contentref,$dir) = @_;
1.167 albertel 1280: push (@$parser,HTML::LCParser->new($contentref));
1.365 albertel 1281: $$parser[-1]->xml_mode(1);
1282: $$parser[-1]->marked_sections(1);
1.23 albertel 1283: if ( $dir eq '' ) {
1284: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1285: } else {
1286: push (@Apache::lonxml::pwd, $dir);
1287: }
1288: }
1.1 sakharuk 1289:
1.8 albertel 1290: sub parstring {
1.417 albertel 1291: my ($token) = @_;
1292: my (@vars,@values);
1293: foreach my $attr (@{$token->[3]}) {
1294: if ($attr!~/\W/) {
1295: my $val=$token->[2]->{$attr};
1296: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1297: $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
1298: $val =~ s/(\$)$/\\$1/;
1299: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1300: push(@vars,"\$$attr");
1301: push(@values,"\"$val\"");
1302: }
1303: }
1304: my $var_init =
1305: (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
1306: : '';
1307: return $var_init;
1.8 albertel 1308: }
1.22 albertel 1309:
1.384 albertel 1310: sub extlink {
1311: my ($res,$exact)=@_;
1312: if (!$exact) {
1313: $res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
1314: }
1315: push(@Apache::lonxml::extlinks,$res)
1316: }
1317:
1.34 www 1318: sub writeallows {
1.126 www 1319: unless ($#extlinks>=0) { return; }
1.377 albertel 1320: my $thisurl = &Apache::lonnet::clutter(shift);
1.372 albertel 1321: if ($env{'httpref.'.$thisurl}) {
1322: $thisurl=$env{'httpref.'.$thisurl};
1.111 www 1323: }
1.34 www 1324: my $thisdir=$thisurl;
1325: $thisdir=~s/\/[^\/]+$//;
1326: my %httpref=();
1.142 albertel 1327: foreach (@extlinks) {
1.34 www 1328: $httpref{'httpref.'.
1.444 albertel 1329: &Apache::lonnet::hreflocation($thisdir,&unescape($_))}=$thisurl;
1.142 albertel 1330: }
1.126 www 1331: @extlinks=();
1.474 raeburn 1332: &Apache::lonnet::appenv(\%httpref);
1.34 www 1333: }
1334:
1.281 albertel 1335: sub register_ssi {
1336: my ($url,%form)=@_;
1337: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1338: return '';
1339: }
1340:
1341: sub do_registered_ssi {
1342: foreach my $info (@Apache::lonxml::ssi_info) {
1343: my %form=%{ $info->{'form'}};
1344: my $url=$info->{'url'};
1345: &Apache::lonnet::ssi($url,%form);
1346: }
1347: }
1.448 albertel 1348:
1349: sub add_script_result {
1350: my ($display) = @_;
1351: push(@script_var_displays, $display);
1352: }
1353:
1.66 www 1354: #
1355: # Afterburner handles anchors, highlights and links
1356: #
1357: sub afterburn {
1358: my $result=shift;
1.154 albertel 1359: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1360: ['highlight','anchor','link']);
1.372 albertel 1361: if ($env{'form.highlight'}) {
1362: foreach (split(/\,/,$env{'form.highlight'})) {
1.66 www 1363: my $anchorname=$_;
1364: my $matchthis=$anchorname;
1365: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1366: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1367: }
1.66 www 1368: }
1.372 albertel 1369: if ($env{'form.link'}) {
1370: foreach (split(/\,/,$env{'form.link'})) {
1.66 www 1371: my ($anchorname,$linkurl)=split(/\>/,$_);
1372: my $matchthis=$anchorname;
1373: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1374: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1375: }
1.66 www 1376: }
1.372 albertel 1377: if ($env{'form.anchor'}) {
1378: my $anchorname=$env{'form.anchor'};
1.66 www 1379: my $matchthis=$anchorname;
1380: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1381: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1.66 www 1382: $result.=(<<"ENDSCRIPT");
1.226 albertel 1383: <script type="text/javascript">
1.66 www 1384: document.location.hash='$anchorname';
1385: </script>
1386: ENDSCRIPT
1387: }
1388: return $result;
1389: }
1390:
1.79 www 1391: sub storefile {
1392: my ($file,$contents)=@_;
1.290 albertel 1393: &Apache::lonnet::correct_line_ends(\$contents);
1.79 www 1394: if (my $fh=Apache::File->new('>'.$file)) {
1395: print $fh $contents;
1396: $fh->close();
1.271 www 1397: return 1;
1.147 albertel 1398: } else {
1.482 bisitz 1399: &warning(&mt('Unable to save file [_1]','<tt>'.$file.'</tt>'));
1.271 www 1400: return 0;
1.79 www 1401: }
1402: }
1403:
1.151 albertel 1404: sub createnewhtml {
1.321 www 1405: my $title=&mt('Title of document goes here');
1406: my $body=&mt('Body of document goes here');
1407: my $filecontents=(<<SIMPLECONTENT);
1.78 www 1408: <html>
1409: <head>
1.321 www 1410: <title>$title</title>
1.78 www 1411: </head>
1412: <body bgcolor="#FFFFFF">
1.321 www 1413: $body
1.78 www 1414: </body>
1415: </html>
1416: SIMPLECONTENT
1.321 www 1417: return $filecontents;
1.151 albertel 1418: }
1419:
1.274 albertel 1420: sub createnewsty {
1421: my $filecontents=(<<SIMPLECONTENT);
1422: <definetag name="">
1423: <render>
1424: <web></web>
1425: <tex></tex>
1426: </render>
1427: </definetag>
1428: SIMPLECONTENT
1429: return $filecontents;
1430: }
1431:
1.493 raeburn 1432: sub createnewjs {
1433: my $filecontents=(<<SIMPLECONTENT);
1434: <script type="text/javascript" language="Javascript">
1435:
1436: </script>
1437: SIMPLECONTENT
1438: return $filecontents;
1439: }
1440:
1.472 www 1441: sub verify_html {
1442: my ($filecontents)=@_;
1.516 raeburn 1443: my ($is_html,$is_xml);
1444: if ($filecontents =~/(?:\<|\<\;)\?xml[^\<]*\?(?:\>|\>\;)/is) {
1445: $is_xml = 1;
1.518 raeburn 1446: } elsif ($filecontents =~/(?:\<|\<\;)html(?:\s+[^\<]+|\s*)(?:\>|\>\;)/is) {
1.516 raeburn 1447: $is_html = 1;
1448: }
1449: unless ($is_xml || $is_html) {
1450: return &mt('File does not have [_1] or [_2] starting tag','<html>','<?xml ?>');
1451: }
1452: if ($is_html) {
1453: if ($filecontents!~/(?:\<|\<\;)\/html(?:\>|\>\;)/is) {
1454: return &mt('File does not have [_1] ending tag','<html>');
1455: }
1456: if ($filecontents!~/(?:\<|\<\;)(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
1457: return &mt('File does not have [_1] or [_2] starting tag','<body>','<frameset>');
1458: }
1459: if ($filecontents!~/(?:\<|\<\;)\/(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
1460: return &mt('File does not have [_1] or [_2] ending tag','<body>','<frameset>');
1461: }
1.472 www 1462: }
1463: return '';
1464: }
1.147 albertel 1465:
1.478 www 1466: sub renderingoptions {
1467: my %langchoices=('' => '');
1468: foreach (&Apache::loncommon::languageids()) {
1469: if (&Apache::loncommon::supportedlanguagecode($_)) {
1470: $langchoices{&Apache::loncommon::supportedlanguagecode($_)}
1471: = &Apache::loncommon::plainlanguagedescription($_);
1472: }
1473: }
1.500 raeburn 1474: my $output;
1475: unless ($env{'form.forceedit'}) {
1.504 bisitz 1476: $output .=
1477: '<span class="LC_nobreak">'.
1.500 raeburn 1478: &mt('Language:').' '.
1.504 bisitz 1479: &Apache::loncommon::select_form(
1480: $env{'form.languages'},
1481: 'languages',
1.510 raeburn 1482: {&Apache::lonlocal::texthash(%langchoices)}).
1.504 bisitz 1483: '</span>';
1.500 raeburn 1484: }
1.504 bisitz 1485: $output .=
1486: ' <span class="LC_nobreak">'.
1.479 bisitz 1487: &mt('Math Rendering:').' '.
1.504 bisitz 1488: &Apache::loncommon::select_form(
1489: $env{'form.texengine'},
1490: 'texengine',
1.510 raeburn 1491: {&Apache::lonlocal::texthash
1.504 bisitz 1492: ('' => '',
1493: 'tth' => 'tth (TeX to HTML)',
1494: 'jsMath' => 'jsMath',
1.510 raeburn 1495: 'mimetex' => 'mimetex (Convert to Images)')}).
1.504 bisitz 1496: '</span>';
1.500 raeburn 1497: return $output;
1.478 www 1498: }
1499:
1.151 albertel 1500: sub inserteditinfo {
1.470 albertel 1501: my ($filecontents, $filetype, $filename)=@_;
1.314 albertel 1502: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1.274 albertel 1503: my $xml_help = '';
1.321 www 1504: my $initialize='';
1.452 albertel 1505: my $textarea_id = 'filecont';
1.492 raeburn 1506: my $dragmath_button;
1.452 albertel 1507: my ($add_to_onload, $add_to_onresize);
1.456 albertel 1508: $initialize=&Apache::lonhtmlcommon::spellheader();
1.514 raeburn 1509: if (($filetype eq 'html') && (&Apache::lonhtmlcommon::htmlareabrowser())) {
1.463 albertel 1510: my $lang = &Apache::lonhtmlcommon::htmlarea_lang();
1.512 raeburn 1511: my %textarea_args = (
1512: fullpage => 'true',
1513: dragmath => 'math',
1514: );
1.514 raeburn 1515: $initialize .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1516: }
1517: $initialize .= (<<FULLPAGE);
1.321 www 1518: <script type="text/javascript">
1.514 raeburn 1519: // <![CDATA[
1.321 www 1520: function initDocument() {
1.463 albertel 1521: resize_textarea('$textarea_id','LC_aftertextarea');
1.321 www 1522: }
1.514 raeburn 1523: // ]]>
1.321 www 1524: </script>
1525: FULLPAGE
1.514 raeburn 1526: if ($filetype eq 'html') {
1527: $dragmath_button = '<span id="math_filecont">'.&Apache::lonhtmlcommon::dragmath_button('filecont',1).'</span>';
1528: $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup');
1.512 raeburn 1529: }
1.456 albertel 1530: $add_to_onload = 'initDocument();';
1531: $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');";
1532:
1533: if ($filetype eq 'html') {
1.321 www 1534: $xml_help=&Apache::loncommon::helpLatexCheatsheet();
1.274 albertel 1535: }
1.452 albertel 1536:
1.254 albertel 1537: my $titledisplay=&display_title();
1.512 raeburn 1538: my $textareaclass;
1.426 banghart 1539: my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
1540: 'vi' => 'Save and View',
1.427 banghart 1541: 'dv' => 'Discard Edits and View',
1.428 banghart 1542: 'un' => 'undo',
1.280 www 1543: 'ed' => 'Edit');
1.512 raeburn 1544: my $spelllink = &Apache::lonhtmlcommon::spelllink('xmledit','filecont');
1.451 albertel 1545: my $textarea_events = &Apache::edit::element_change_detection();
1546: my $form_events = &Apache::edit::form_change_detection();
1.491 raeburn 1547: my $htmlerror;
1548: if ($filetype eq 'html') {
1549: $htmlerror=&verify_html($filecontents);
1550: if ($htmlerror) {
1551: $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
1552: }
1.501 raeburn 1553: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.515 raeburn 1554: $textareaclass = 'class="LC_richDefaultOff"';
1.501 raeburn 1555: }
1.472 www 1556: }
1.78 www 1557: my $editfooter=(<<ENDFOOTER);
1.321 www 1558: $initialize
1.78 www 1559: <a name="editsection" />
1.451 albertel 1560: <form $form_events method="post" name="xmledit">
1.470 albertel 1561: <div class="LC_edit_problem_editxml_header">
1562: <table class="LC_edit_problem_header_title"><tr><td>
1563: $filename
1564: </td><td align="right">
1565: $xml_help
1566: </td></tr>
1567: </table>
1568: <div class="LC_edit_problem_discards">
1569: <input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
1570: <input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" />
1.513 raeburn 1571: $htmlerror $dragmath_button
1.470 albertel 1572: </div>
1573: <div class="LC_edit_problem_saves">
1574: <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
1575: <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
1576: </div>
1577: </div>
1.513 raeburn 1578: <textarea $textarea_events style="width:100%" cols="80" rows="44" name="filecont" id="filecont" $textareaclass>$filecontents</textarea><br />$spelllink
1.470 albertel 1579: <div id="LC_aftertextarea">
1580: <br />
1581: $titledisplay
1582: </div>
1.78 www 1583: </form>
1.321 www 1584: </body>
1.78 www 1585: ENDFOOTER
1.452 albertel 1586: return ($editfooter,$add_to_onload,$add_to_onresize);;
1.78 www 1587: }
1588:
1.152 albertel 1589: sub get_target {
1.372 albertel 1590: my $viewgrades=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1591: if ( $env{'request.state'} eq 'published') {
1592: if ( defined($env{'form.grade_target'})
1.152 albertel 1593: && ($viewgrades == 'F' )) {
1.372 albertel 1594: return ($env{'form.grade_target'});
1595: } elsif (defined($env{'form.grade_target'})) {
1596: if (($env{'form.grade_target'} eq 'web') ||
1597: ($env{'form.grade_target'} eq 'tex') ) {
1598: return $env{'form.grade_target'}
1.153 albertel 1599: } else {
1600: return 'web';
1601: }
1.152 albertel 1602: } else {
1603: return 'web';
1604: }
1.372 albertel 1605: } elsif ($env{'request.state'} eq 'construct') {
1606: if ( defined($env{'form.grade_target'})) {
1607: return ($env{'form.grade_target'});
1.152 albertel 1608: } else {
1609: return 'web';
1610: }
1611: } else {
1612: return 'web';
1613: }
1614: }
1615:
1.24 sakharuk 1616: sub handler {
1.255 sakharuk 1617: my $request=shift;
1.493 raeburn 1618:
1.255 sakharuk 1619: my $target=&get_target();
1.372 albertel 1620: $Apache::lonxml::debug=$env{'user.debug'};
1.255 sakharuk 1621:
1.364 albertel 1622: &Apache::loncommon::content_type($request,'text/html');
1.255 sakharuk 1623: &Apache::loncommon::no_cache($request);
1.372 albertel 1624: if ($env{'request.state'} eq 'published') {
1.363 albertel 1625: $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
1626: 'lastrevisiondate'));
1627: }
1.499 raeburn 1628: # Embedded Flash movies from Camtasia served from https will not display in IE
1629: # if XML config file has expired from cache.
1630: if ($ENV{'SERVER_PORT'} == 443) {
1631: if ($request->uri =~ /\.xml$/) {
1632: my ($httpbrowser,$clientbrowser) =
1633: &Apache::loncommon::decode_user_agent($request);
1634: if ($clientbrowser =~ /^explorer$/i) {
1635: delete $request->headers_out->{'Cache-control'};
1636: delete $request->headers_out->{'Pragma'};
1637: my $expiration = time + 60;
1638: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime($expiration));
1639: $request->headers_out->set("Expires" => $date);
1640: }
1641: }
1642: }
1.255 sakharuk 1643: $request->send_http_header;
1644:
1645: return OK if $request->header_only;
1.68 www 1646:
1647:
1.255 sakharuk 1648: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.502 raeburn 1649: my ($filetype,$breadcrumbtext);
1650: if ($file =~ /\.(sty|css|js|txt|tex)$/) {
1.493 raeburn 1651: $filetype=$1;
1.274 albertel 1652: } else {
1653: $filetype='html';
1654: }
1.502 raeburn 1655: if ($filetype eq 'sty') {
1656: $breadcrumbtext = 'Style File Editor';
1657: } elsif ($filetype eq 'js') {
1658: $breadcrumbtext = 'Javascript Editor';
1659: } elsif ($filetype eq 'css') {
1660: $breadcrumbtext = 'CSS Editor';
1661: } elsif ($filetype eq 'txt') {
1662: $breadcrumbtext = 'Text Editor';
1663: } elsif ($filetype eq 'tex') {
1664: $breadcrumbtext = 'TeX Editor';
1665: } else {
1666: $breadcrumbtext = 'HTML Editor';
1667: }
1.493 raeburn 1668:
1.78 www 1669: #
1670: # Edit action? Save file.
1671: #
1.428 banghart 1672: if (!($env{'request.state'} eq 'published')) {
1673: if ($env{'form.savethisfile'} || $env{'form.viewmode'} || $env{'form.Undo'}) {
1.429 albertel 1674: my $html_file=&Apache::lonnet::getfile($file);
1675: my $error = &Apache::lonhomework::handle_save_or_undo($request, \$html_file, \$env{'form.filecont'});
1.472 www 1676: if ($env{'form.savethisfile'}) {
1677: $env{'form.editmode'}='Edit'; #force edit mode
1678: }
1.255 sakharuk 1679: }
1680: }
1681: my %mystyle;
1682: my $result = '';
1683: my $filecontents=&Apache::lonnet::getfile($file);
1684: if ($filecontents eq -1) {
1.402 albertel 1685: my $start_page=&Apache::loncommon::start_page('File Error');
1.412 albertel 1686: my $end_page=&Apache::loncommon::end_page();
1.495 bisitz 1687: my $errormsg='<p class="LC_error">'
1688: .&mt('File not found: [_1]'
1689: ,'<span class="LC_filename">'.$file.'</span>')
1690: .'</p>';
1.255 sakharuk 1691: $result=(<<ENDNOTFOUND);
1.402 albertel 1692: $start_page
1.495 bisitz 1693: $errormsg
1.402 albertel 1694: $end_page
1.78 www 1695: ENDNOTFOUND
1.343 albertel 1696: $filecontents='';
1.372 albertel 1697: if ($env{'request.state'} ne 'published') {
1.274 albertel 1698: if ($filetype eq 'sty') {
1699: $filecontents=&createnewsty();
1.493 raeburn 1700: } elsif ($filetype eq 'js') {
1701: $filecontents=&createnewjs();
1.502 raeburn 1702: } elsif ($filetype ne 'css' && $filetype ne 'txt' && $filetype ne 'tex') {
1.274 albertel 1703: $filecontents=&createnewhtml();
1704: }
1.372 albertel 1705: $env{'form.editmode'}='Edit'; #force edit mode
1.255 sakharuk 1706: }
1707: } else {
1.372 albertel 1708: unless ($env{'request.state'} eq 'published') {
1.343 albertel 1709: if ($filecontents=~/BEGIN LON-CAPA Internal/) {
1.381 www 1710: &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 1711: }
1.264 www 1712: #
1713: # we are in construction space, see if edit mode forced
1.385 albertel 1714: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1715: ['editmode']);
1.255 sakharuk 1716: }
1.427 banghart 1717: if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
1.493 raeburn 1718: if ($filetype eq 'html' || $filetype eq 'sty') {
1719: &Apache::structuretags::reset_problem_globals();
1720: $result = &Apache::lonxml::xmlparse($request,$target,
1721: $filecontents,'',%mystyle);
1.455 albertel 1722: # .html files may contain <problem> or <Task> need to clean
1723: # up if it did
1.493 raeburn 1724: &Apache::structuretags::reset_problem_globals();
1725: &Apache::lonhomework::finished_parsing();
1.502 raeburn 1726: } elsif ($filetype eq 'tex') {
1.503 raeburn 1727: $result = &Apache::lontexconvert::converted(\$filecontents,
1728: $env{'form.texengine'});
1729: if ($env{'form.return_only_error_and_warning_counts'}) {
1730: $result = "$errorcount:$warningcount";
1731: }
1.493 raeburn 1732: } else {
1733: $result = $filecontents;
1734: }
1.385 albertel 1735: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1736: ['rawmode']);
1.395 albertel 1737: if ($env{'form.rawmode'}) { $result = $filecontents; }
1.503 raeburn 1738: if (($filetype ne 'html') &&
1739: (!$env{'form.return_only_error_and_warning_counts'})) {
1.502 raeburn 1740: my $nochgview = 1;
1.495 bisitz 1741: my $controls = '';
1742: if ($env{'request.state'} eq 'construct') {
1743: $controls = &Apache::loncommon::head_subbox(
1744: &Apache::loncommon::CSTR_pageheader()
1745: .&Apache::londefdef::edit_controls($nochgview));
1746: }
1.502 raeburn 1747: if ($filetype ne 'sty' && $filetype ne 'tex') {
1.493 raeburn 1748: $result =~ s/</</g;
1749: $result =~ s/>/>/g;
1750: $result = '<table class="LC_sty_begin">'.
1751: '<tr><td><b><pre>'.$result.
1752: '</pre></b></td></tr></table>';
1753: }
1.506 droeschl 1754: my $brcrum;
1755: if ($env{'request.state'} eq 'construct') {
1756: $brcrum = [{'href' => &Apache::loncommon::authorspace(),
1757: 'text' => 'Construction Space'},
1758: {'href' => '',
1759: 'text' => $breadcrumbtext}];
1.493 raeburn 1760: } else {
1.506 droeschl 1761: $brcrum = ''; # FIXME: Where are we?
1.493 raeburn 1762: }
1.506 droeschl 1763: my %options = ('bread_crumbs' => $brcrum,
1764: 'bgcolor' => '#FFFFFF');
1765: $result =
1766: &Apache::loncommon::start_page(undef,undef,\%options)
1767: .$controls
1768: .$result
1769: .&Apache::loncommon::end_page();
1.493 raeburn 1770: }
1.495 bisitz 1771: }
1.147 albertel 1772: }
1.456 albertel 1773:
1.78 www 1774: #
1775: # Edit action? Insert editing commands
1776: #
1.372 albertel 1777: unless ($env{'request.state'} eq 'published') {
1.427 banghart 1778: if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
1.450 albertel 1779: {
1.470 albertel 1780: my $displayfile=$request->uri;
1781: $displayfile=~s/^\/[^\/]*//;
1782:
1.452 albertel 1783: my ($edit_info, $add_to_onload, $add_to_onresize)=
1.470 albertel 1784: &inserteditinfo($filecontents,$filetype,$displayfile);
1.450 albertel 1785:
1786: my %options =
1787: ('add_entries' =>
1.495 bisitz 1788: {'onresize' => $add_to_onresize,
1789: 'onload' => $add_to_onload, });
1.500 raeburn 1790: my $header;
1791: if ($env{'request.state'} eq 'construct') {
1792: $options{'bread_crumbs'} = [{
1793: 'href' => &Apache::loncommon::authorspace(),
1794: 'text' => 'Construction Space'},
1795: {'href' => '',
1.502 raeburn 1796: 'text' => $breadcrumbtext}];
1.500 raeburn 1797: $header = &Apache::loncommon::head_subbox(
1798: &Apache::loncommon::CSTR_pageheader());
1799: }
1.452 albertel 1800: my $js =
1801: &Apache::edit::js_change_detection().
1802: &Apache::loncommon::resize_textarea_js();
1.451 albertel 1803: my $start_page = &Apache::loncommon::start_page(undef,$js,
1.402 albertel 1804: \%options);
1.495 bisitz 1805: $result = $start_page
1.500 raeburn 1806: .$header
1.495 bisitz 1807: .&Apache::lonxml::message_location()
1808: .$edit_info
1809: .&Apache::loncommon::end_page();
1.493 raeburn 1810: }
1.147 albertel 1811: }
1.402 albertel 1812: if ($filetype eq 'html') { &writeallows($request->uri); }
1.501 raeburn 1813:
1.309 albertel 1814: &Apache::lonxml::add_messages(\$result);
1.255 sakharuk 1815: $request->print($result);
1816:
1817: return OK;
1.253 albertel 1818: }
1819:
1820: sub display_title {
1821: my $result;
1.372 albertel 1822: if ($env{'request.state'} eq 'construct') {
1.253 albertel 1823: my $title=&Apache::lonnet::gettitle();
1824: if (!defined($title) || $title eq '') {
1.372 albertel 1825: $title = $env{'request.filename'};
1.253 albertel 1826: $title = substr($title, rindex($title, '/') + 1);
1827: }
1.476 bisitz 1828: $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA "
1829: .&mt('Construction Space')."';</script>";
1.253 albertel 1830: }
1831: return $result;
1.24 sakharuk 1832: }
1.147 albertel 1833:
1.22 albertel 1834: sub debug {
1.298 albertel 1835: if ($Apache::lonxml::debug eq "1") {
1836: $|=1;
1.300 albertel 1837: my $request=$Apache::lonxml::request;
1.388 albertel 1838: if (!$request) {
1839: eval { $request=Apache->request; };
1840: }
1841: if (!$request) {
1842: eval { $request=Apache2::RequestUtil->request; };
1843: }
1.314 albertel 1844: $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
1.346 albertel 1845: #&Apache::lonnet::logthis($_[0]);
1.298 albertel 1846: }
1.22 albertel 1847: }
1.49 albertel 1848:
1.348 albertel 1849: sub show_error_warn_msg {
1.372 albertel 1850: if ($env{'request.filename'} eq '/home/httpd/html/res/lib/templates/simpleproblem.problem' &&
1851: &Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1.351 albertel 1852: return 1;
1853: }
1.348 albertel 1854: return (($Apache::lonxml::debug eq 1) ||
1.372 albertel 1855: ($env{'request.state'} eq 'construct') ||
1.348 albertel 1856: ($Apache::lonhomework::browse eq 'F'
1857: &&
1.372 albertel 1858: $env{'form.show_errors'} eq 'on'));
1.348 albertel 1859: }
1860:
1.22 albertel 1861: sub error {
1.454 albertel 1862: my @errors = @_;
1863:
1.336 albertel 1864: $errorcount++;
1.454 albertel 1865:
1.490 www 1866: $Apache::lonxml::internal_error=1;
1867:
1.454 albertel 1868: if (defined($Apache::inputtags::part)) {
1869: if ( @Apache::inputtags::response ) {
1870: push(@errors,
1871: &mt("This error occurred while processing response [_1] in part [_2]",
1872: $Apache::inputtags::response[-1],
1873: $Apache::inputtags::part));
1874: } else {
1875: push(@errors,
1876: &mt("This error occurred while processing part [_1]",
1877: $Apache::inputtags::part));
1878: }
1879: }
1880:
1.348 albertel 1881: if ( &show_error_warn_msg() ) {
1.336 albertel 1882: # If printing in construction space, put the error inside <pre></pre>
1883: push(@Apache::lonxml::error_messages,
1.484 bisitz 1884: $Apache::lonxml::warnings_error_header
1885: .'<div class="LC_error">'
1886: .'<b>'.&mt('ERROR:').' </b>'.join("<br />\n",@errors)
1887: ."</div>\n");
1.336 albertel 1888: $Apache::lonxml::warnings_error_header='';
1889: } else {
1890: my $errormsg;
1891: my ($symb)=&Apache::lonnet::symbread();
1892: if ( !$symb ) {
1893: #public or browsers
1.486 bisitz 1894: $errormsg=&mt("An error occurred while processing this resource. The author has been notified.");
1.403 albertel 1895: }
1.413 albertel 1896: my $host=$Apache::lonnet::perlvar{'lonHostID'};
1.476 bisitz 1897: push(@errors,
1898: &mt("The error occurred on host [_1]",
1899: "<tt>$host</tt>"));
1.454 albertel 1900:
1901: my $msg = join('<br />', @errors);
1902:
1.336 albertel 1903: #notify author
1.403 albertel 1904: &Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
1.336 albertel 1905: #notify course
1.372 albertel 1906: if ( $symb && $env{'request.course.id'} ) {
1.380 www 1907: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1908: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.440 albertel 1909: my (undef,%users)=&Apache::lonmsg::decide_receiver(undef,0,1,1,1);
1.372 albertel 1910: my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
1.435 raeburn 1911: my $baseurl = &Apache::lonnet::clutter($declutter);
1.336 albertel 1912: my @userlist;
1913: foreach (keys %users) {
1914: my ($user,$domain) = split(/:/, $_);
1915: push(@userlist,"$user\@$domain");
1.380 www 1916: my $key=$declutter.'_'.$user.'_'.$domain;
1917: my %lastnotified=&Apache::lonnet::get('nohist_xmlerrornotifications',
1918: [$key],
1919: $cdom,$cnum);
1920: my $now=time;
1921: if ($now-$lastnotified{$key}>86400) {
1.434 raeburn 1922: my $title = &Apache::lonnet::gettitle($symb);
1923: my $sentmessage;
1.380 www 1924: &Apache::lonmsg::user_normal_msg($user,$domain,
1.435 raeburn 1925: "Error [$title]",$msg,'',$baseurl,'','',
1.434 raeburn 1926: \$sentmessage,$symb,$title,1);
1.380 www 1927: &Apache::lonnet::put('nohist_xmlerrornotifications',
1928: {$key => $now},
1929: $cdom,$cnum);
1930: }
1.336 albertel 1931: }
1.372 albertel 1932: if ($env{'request.role.adv'}) {
1.486 bisitz 1933: $errormsg=&mt("An error occurred while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
1.336 albertel 1934: } else {
1.486 bisitz 1935: $errormsg=&mt("An error occurred while processing this resource. The instructor has been notified.");
1.336 albertel 1936: }
1937: }
1938: push(@Apache::lonxml::error_messages,"<b>$errormsg</b> <br />");
1.52 albertel 1939: }
1.22 albertel 1940: }
1.49 albertel 1941:
1.22 albertel 1942: sub warning {
1.295 albertel 1943: $warningcount++;
1.261 albertel 1944:
1.372 albertel 1945: if ($env{'form.grade_target'} ne 'tex') {
1.348 albertel 1946: if ( &show_error_warn_msg() ) {
1.309 albertel 1947: push(@Apache::lonxml::warning_messages,
1.484 bisitz 1948: $Apache::lonxml::warnings_error_header
1949: .'<div class="LC_warning">'
1950: .&mt('[_1]W[_2]ARNING','<b>','</b>')."<b>:</b> ".join('<br />',@_)
1951: ."</div>\n"
1.482 bisitz 1952: );
1.295 albertel 1953: $Apache::lonxml::warnings_error_header='';
1954: }
1955: }
1.309 albertel 1956: }
1957:
1958: sub info {
1.372 albertel 1959: if ($env{'form.grade_target'} ne 'tex'
1960: && $env{'request.state'} eq 'construct') {
1.309 albertel 1961: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
1962: }
1963: }
1964:
1965: sub message_location {
1966: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
1967: }
1968:
1969: sub add_messages {
1970: my ($msg)=@_;
1971: my $result=join(' ',
1972: @Apache::lonxml::info_messages,
1973: @Apache::lonxml::error_messages,
1974: @Apache::lonxml::warning_messages);
1975: undef(@Apache::lonxml::info_messages);
1976: undef(@Apache::lonxml::error_messages);
1977: undef(@Apache::lonxml::warning_messages);
1978: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
1979: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
1.83 albertel 1980: }
1981:
1982: sub get_param {
1.213 albertel 1983: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1984: if ( ! $context ) { $context = -1; }
1985: my $args ='';
1986: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 1987: if ( ! $Apache::lonxml::usestyle ) {
1988: $args=$Apache::lonxml::style_values.$args;
1989: }
1.213 albertel 1990: if ( ! $args ) { return undef; }
1991: if ( $case_insensitive ) {
1.417 albertel 1992: if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
1.213 albertel 1993: return &Apache::run::run("{$args;".'return $'.$param.'}',
1994: $safeeval); #'
1995: } else {
1996: return undef;
1997: }
1998: } else {
1.417 albertel 1999: if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
1.213 albertel 2000: return &Apache::run::run("{$args;".'return $'.$param.'}',
2001: $safeeval); #'
2002: } else {
2003: return undef;
2004: }
2005: }
1.22 albertel 2006: }
2007:
1.132 albertel 2008: sub get_param_var {
1.213 albertel 2009: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 2010: if ( ! $context ) { $context = -1; }
2011: my $args ='';
2012: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 2013: if ( ! $Apache::lonxml::usestyle ) {
2014: $args=$Apache::lonxml::style_values.$args;
2015: }
1.230 albertel 2016: &Apache::lonxml::debug("Args are $args param is $param");
1.213 albertel 2017: if ($case_insensitive) {
1.419 albertel 2018: if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
1.213 albertel 2019: return undef;
2020: }
1.419 albertel 2021: } elsif ( $args !~ /my .*\$\Q$param\E[,\)]/ ) { return undef; }
1.132 albertel 2022: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.230 albertel 2023: &Apache::lonxml::debug("first run is $value");
1.341 albertel 2024: if ($value =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
1.230 albertel 2025: &Apache::lonxml::debug("doing second");
2026: my @result=&Apache::run::run("return $value",$safeeval,1);
2027: if (!defined($result[0])) {
2028: return $value
2029: } else {
2030: if (wantarray) { return @result; } else { return $result[0]; }
2031: }
1.132 albertel 2032: } else {
2033: return $value;
2034: }
2035: }
2036:
1.438 albertel 2037: sub register_insert_xml {
2038: my $parser = HTML::LCParser->new($Apache::lonnet::perlvar{'lonTabDir'}
2039: .'/insertlist.xml');
2040: my ($tagnum,$in_help)=(0,0);
1.442 albertel 2041: my @alltags;
1.438 albertel 2042: my $tag;
2043: while (my $token = $parser->get_token()) {
2044: if ($token->[0] eq 'S') {
2045: my $key;
2046: if ($token->[1] eq 'tag') {
2047: $tag = $token->[2]{'name'};
1.519 raeburn 2048: $insertlist{$tagnum.'.tag'} = $tag;
2049: $insertlist{$tag.'.num'} = $tagnum;
1.442 albertel 2050: push(@alltags,$tag);
1.438 albertel 2051: } elsif ($in_help && $token->[1] eq 'file') {
2052: $key = $tag.'.helpfile';
2053: } elsif ($in_help && $token->[1] eq 'description') {
2054: $key = $tag.'.helpdesc';
2055: } elsif ($token->[1] eq 'description' ||
2056: $token->[1] eq 'color' ||
2057: $token->[1] eq 'show' ) {
2058: $key = $tag.'.'.$token->[1];
2059: } elsif ($token->[1] eq 'insert_sub') {
2060: $key = $tag.'.function';
2061: } elsif ($token->[1] eq 'help') {
2062: $in_help=1;
2063: } elsif ($token->[1] eq 'allow') {
1.442 albertel 2064: $key = $tag.'.allow';
1.438 albertel 2065: }
2066: if (defined($key)) {
2067: $insertlist{$key} = $parser->get_text();
2068: $insertlist{$key} =~ s/(^\s*|\s*$ )//gx;
2069: }
2070: } elsif ($token->[0] eq 'E') {
2071: if ($token->[1] eq 'tag') {
2072: undef($tag);
2073: $tagnum++;
2074: } elsif ($token->[1] eq 'help') {
2075: undef($in_help);
2076: }
2077: }
2078: }
1.442 albertel 2079:
2080: # parse the allows and ignore tags set to <show>no</show>
2081: foreach my $tag (@alltags) {
1.519 raeburn 2082: next if (!exists($insertlist{$tag.'.allow'}));
2083: my $allow = $insertlist{$tag.'.allow'};
1.442 albertel 2084: foreach my $element (split(',',$allow)) {
2085: $element =~ s/(^\s*|\s*$ )//gx;
1.519 raeburn 2086: if (!exists($insertlist{$element.'.show'})
2087: || $insertlist{$element.'.show'} ne 'no') {
1.442 albertel 2088: push(@{ $insertlist{$tag.'.which'} },$element);
2089: }
2090: }
2091: }
1.438 albertel 2092: }
2093:
2094: sub register_insert {
2095: return ®ister_insert_xml(@_);
2096: # &dump_insertlist('2');
2097: }
2098:
2099: sub dump_insertlist {
2100: my ($ext) = @_;
2101: open(XML,">/tmp/insertlist.xml.$ext");
2102: print XML ("<insertlist>");
2103: my $i=0;
2104:
2105: while (exists($insertlist{"$i.tag"})) {
2106: my $tag = $insertlist{"$i.tag"};
2107: print XML ("
2108: \t<tag name=\"$tag\">");
2109: if (defined($insertlist{"$tag.description"})) {
2110: print XML ("
2111: \t\t<description>".$insertlist{"$tag.description"}."</description>");
2112: }
2113: if (defined($insertlist{"$tag.color"})) {
2114: print XML ("
2115: \t\t<color>".$insertlist{"$tag.color"}."</color>");
2116: }
2117: if (defined($insertlist{"$tag.function"})) {
2118: print XML ("
2119: \t\t<insert_sub>".$insertlist{"$tag.function"}."</insert_sub>");
2120: }
2121: if (defined($insertlist{"$tag.show"})
2122: && $insertlist{"$tag.show"} ne 'yes') {
2123: print XML ("
2124: \t\t<show>".$insertlist{"$tag.show"}."</show>");
2125: }
2126: if (defined($insertlist{"$tag.helpfile"})) {
2127: print XML ("
2128: \t\t<help>
2129: \t\t\t<file>".$insertlist{"$tag.helpfile"}."</file>");
2130: if ($insertlist{"$tag.helpdesc"} ne '') {
2131: print XML ("
2132: \t\t\t<description>".$insertlist{"$tag.helpdesc"}."</description>");
2133: }
2134: print XML ("
2135: \t\t</help>");
2136: }
2137: if (defined($insertlist{"$tag.which"})) {
2138: print XML ("
2139: \t\t<allow>".join(',',sort(@{ $insertlist{"$tag.which"} }))."</allow>");
2140: }
2141: print XML ("
2142: \t</tag>");
2143: $i++;
2144: }
2145: print XML ("\n</insertlist>\n");
2146: close(XML);
2147: }
2148:
1.98 albertel 2149: sub description {
1.437 albertel 2150: my ($token)=@_;
2151: my $tag = &get_tag($token);
2152: return $insertlist{$tag.'.description'};
1.268 bowersj2 2153: }
2154:
2155: # Returns a list containing the help file, and the description
2156: sub helpinfo {
1.437 albertel 2157: my ($token)=@_;
2158: my $tag = &get_tag($token);
2159: return ($insertlist{$tag.'.helpfile'}, $insertlist{$tag.'.helpdesc'});
2160: }
2161:
2162: sub get_tag {
2163: my ($token)=@_;
2164: my $tagnum;
2165: my $tag=$token->[1];
2166: foreach my $namespace (reverse(@Apache::lonxml::namespace)) {
2167: my $testtag = $namespace.'::'.$tag;
2168: $tagnum = $insertlist{"$testtag.num"};
2169: last if (defined($tagnum));
2170: }
2171: if (!defined($tagnum)) {
2172: $tagnum = $Apache::lonxml::insertlist{"$tag.num"};
2173: }
2174: return $insertlist{"$tagnum.tag"};
1.98 albertel 2175: }
1.123 albertel 2176:
1.485 onken 2177: ############################################################
2178: # PDF-FORM-METHODS
2179:
2180: =pod
2181:
1.508 onken 2182: =item &print_pdf_radiobutton(fieldname, value)
1.485 onken 2183:
1.508 onken 2184: Returns a latexline to generate a PDF-Form-Radiobutton.
2185: Note: Radiobuttons with equal names are automaticly grouped
2186: in a selection-group.
1.485 onken 2187:
1.508 onken 2188: $fieldname: PDF internalname of the radiobutton(group)
2189: $value: Value of radiobutton
1.485 onken 2190:
2191: =cut
2192: sub print_pdf_radiobutton {
1.508 onken 2193: my ($fieldname, $value) = @_;
2194: return '\radioButton[\symbolchoice{circle}]{'
2195: .$fieldname.'}{10bp}{10bp}{'.$value.'}';
1.485 onken 2196: }
2197:
2198:
2199: =pod
2200:
2201: =item &print_pdf_start_combobox(fieldname)
2202:
2203: Starts a latexline to generate a PDF-Form-Combobox with text.
2204:
2205: $fieldname: PDF internal name of the Combobox
2206:
2207: =cut
2208: sub print_pdf_start_combobox {
2209: my $result;
2210: my ($fieldName) = @_;
2211: $result .= '\begin{tabularx}{\textwidth}{p{2.5cm}X}'."\n";
2212: $result .= '\comboBox[]{'.$fieldName.'}{2.3cm}{14bp}{'; #
2213:
2214: return $result;
2215: }
2216:
2217:
2218: =pod
2219:
2220: =item &print_pdf_add_combobox_option(options)
2221:
2222: Generates a latexline to add Options to a PDF-Form-ComboBox.
2223:
2224: $option: PDF internal name of the Combobox-Option
2225:
2226: =cut
2227: sub print_pdf_add_combobox_option {
2228:
2229: my $result;
2230: my ($option) = @_;
2231:
2232: $result .= '('.$option.')';
2233:
2234: return $result;
2235: }
2236:
2237:
2238: =pod
2239:
2240: =item &print_pdf_end_combobox(text) {
2241:
2242: Returns latexcode to end a PDF-Form-Combobox with text.
2243:
2244: =cut
2245: sub print_pdf_end_combobox {
2246: my $result;
2247: my ($text) = @_;
2248:
2249: $result .= '}&'.$text."\\\\\n";
2250: $result .= '\end{tabularx}' . "\n";
2251: $result .= '\hspace{2mm}' . "\n";
2252: return $result;
2253: }
2254:
2255:
2256: =pod
2257:
2258: =item &print_pdf_hiddenField(fieldname, user, domain)
2259:
2260: Returns a latexline to generate a PDF-Form-hiddenField with userdata.
2261:
2262: $fieldname label for hiddentextfield
2263: $user: name of user
2264: $domain: domain of user
2265:
2266: =cut
2267: sub print_pdf_hiddenfield {
2268: my $result;
2269: my ($fieldname, $user, $domain) = @_;
2270:
2271: $result .= '\textField [\F{\FHidden}\F{-\FPrint}\V{'.$domain.'&'.$user.'}]{'.$fieldname.'}{0in}{0in}'."\n";
2272:
2273: return $result;
2274: }
2275:
1.1 sakharuk 2276: 1;
2277: __END__
1.68 www 2278:
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