Annotation of loncom/xml/lonxml.pm, revision 1.552
1.2 sakharuk 1: # The LearningOnline Network with CAPA
1.3 sakharuk 2: # XML Parser Module
1.2 sakharuk 3: #
1.552 ! raeburn 4: # $Id: lonxml.pm,v 1.551 2014/12/15 17:39:24 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();
1.520 www 115: use Apache::functionplotresponse();
1.529 raeburn 116: use Apache::lonnavmaps();
1.79 www 117:
1.462 foxr 118: #==================================== Main subroutine: xmlparse
119:
1.72 albertel 120: #debugging control, to turn on debugging modify the correct handler
1.462 foxr 121:
1.72 albertel 122: $Apache::lonxml::debug=0;
1.206 albertel 123:
124: # keeps count of the number of warnings and errors generated in a parse
125: $warningcount=0;
126: $errorcount=0;
1.72 albertel 127:
128: #path to the directory containing the file currently being processed
129: @pwd=();
130:
131: #these two are used for capturing a subset of the output for later processing,
132: #don't touch them directly use &startredirection and &endredirection
133: @outputstack = ();
134: $redirection = 0;
135:
136: #controls wheter the <import> tag actually does
137: $import = 1;
138: @extlinks=();
139:
140: # meta mode is a bit weird only some output is to be turned off
141: #<output> tag turns metamode off (defined in londefdef.pm)
142: $metamode = 0;
143:
144: # turns on and of run::evaluate actually derefencing var refs
145: $evaluate = 1;
1.7 albertel 146:
1.545 bisitz 147: # data structure for edit mode, determines what tags can go into what other tags
1.74 albertel 148: %insertlist=();
1.68 www 149:
1.99 albertel 150: # stores the list of active tag namespaces
1.76 albertel 151: @namespace=();
152:
1.448 albertel 153: # stores all Scrit Vars displays for later showing
154: my @script_var_displays=();
155:
1.172 albertel 156: # a pointer the the Apache request object
157: $Apache::lonxml::request='';
158:
1.216 sakharuk 159: # a problem number counter, and check on ether it is used
1.237 sakharuk 160: $Apache::lonxml::counter=1;
1.204 albertel 161: $Apache::lonxml::counter_changed=0;
162:
1.462 foxr 163: # Part counter hash. In analysis mode, the
164: # problems can use this to record which parts increment the counter
165: # by how much. The counter subs will maintain this hash via
166: # their optional part parameters. Note that the assumption is that
167: # analysis is done in one request and therefore it is not necessary to
168: # save this information request-to-request.
169:
170:
171: %Apache::lonxml::counters_per_part = ();
172:
1.212 albertel 173: #internal check on whether to look at style defs
174: $Apache::lonxml::usestyle=1;
1.260 albertel 175:
176: #locations used to store the parameter string for style substitutions
177: $Apache::lonxml::style_values='';
178: $Apache::lonxml::style_end_values='';
1.212 albertel 179:
1.281 albertel 180: #array of ssi calls that need to occur after we are done parsing
181: @Apache::lonxml::ssi_info=();
182:
1.282 albertel 183: #should we do the postag variable interpolation
184: $Apache::lonxml::post_evaluate=1;
185:
1.295 albertel 186: #a header message to emit in the case of any generated warning or errors
187: $Apache::lonxml::warnings_error_header='';
188:
1.396 foxr 189: # Control whether or not LaTeX symbols should be substituted for their
190: # \ style equivalents...this may be turned off e.g. in an verbatim
191: # environment.
192:
193: $Apache::lonxml::substitute_LaTeX_symbols = 1; # Starts out on.
194:
195: sub enable_LaTeX_substitutions {
196: $Apache::lonxml::substitute_LaTeX_symbols = 1;
197: }
198: sub disable_LaTeX_substitutions {
199: $Apache::lonxml::substitute_LaTeX_symbols = 0;
200: }
201:
1.68 www 202: sub xmlend {
1.335 sakharuk 203: my ($target,$parser)=@_;
1.278 www 204: my $mode='xml';
205: my $status='OPEN';
1.368 albertel 206: if ($Apache::lonhomework::parsing_a_problem ||
207: $Apache::lonhomework::parsing_a_task ) {
1.278 www 208: $mode='problem';
209: $status=$Apache::inputtags::status[-1];
210: }
1.362 matthew 211: my $discussion;
1.379 albertel 212: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
213: ['LONCAPA_INTERNAL_no_discussion']);
1.528 www 214: if (
215: ( (!exists($env{'form.LONCAPA_INTERNAL_no_discussion'}))
216: || ($env{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true')
217: )
218: && ($env{'form.inhibitmenu'} ne 'yes')
219: ) {
1.362 matthew 220: $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
221: }
1.334 sakharuk 222: if ($target eq 'tex') {
1.335 sakharuk 223: $discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
1.334 sakharuk 224: &Apache::lonxml::newparser($parser,\$discussion,'');
225: return '';
226: }
1.405 albertel 227:
1.407 albertel 228: return $discussion;
1.119 www 229: }
230:
1.48 albertel 231: sub printalltags {
1.551 raeburn 232: foreach my $temp (sort(keys(%Apache::lonxml::alltags))) {
233: &Apache::lonxml::debug("$temp -- ".
234: join(',',@{ $Apache::lonxml::alltags{$temp} }));
235: }
1.48 albertel 236: }
1.31 sakharuk 237:
1.3 sakharuk 238: sub xmlparse {
1.172 albertel 239: my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
1.96 albertel 240:
1.172 albertel 241: &setup_globals($request,$target);
1.232 albertel 242: &Apache::inputtags::initialize_inputtags();
1.370 albertel 243: &Apache::bridgetask::initialize_bridgetask();
1.232 albertel 244: &Apache::outputtags::initialize_outputtags();
245: &Apache::edit::initialize_edit();
1.287 albertel 246: &Apache::londefdef::initialize_londefdef();
1.244 albertel 247:
1.178 www 248: #
249: # do we have a course style file?
250: #
251:
1.372 albertel 252: if ($env{'request.course.id'} && $env{'request.state'} ne 'construct') {
1.178 www 253: my $bodytext=
1.372 albertel 254: $env{'course.'.$env{'request.course.id'}.'.default_xml_style'};
1.178 www 255: if ($bodytext) {
1.337 albertel 256: foreach my $file (split(',',$bodytext)) {
257: my $location=&Apache::lonnet::filelocation('',$file);
258: my $styletext=&Apache::lonnet::getfile($location);
259: if ($styletext ne '-1') {
260: %style_for_target = (%style_for_target,
261: &Apache::style::styleparser($target,$styletext));
262: }
263: }
264: }
1.449 albertel 265: } elsif ($env{'construct.style'}
266: && ($env{'request.state'} eq 'construct')) {
1.372 albertel 267: my $location=&Apache::lonnet::filelocation('',$env{'construct.style'});
1.291 sakharuk 268: my $styletext=&Apache::lonnet::getfile($location);
1.449 albertel 269: if ($styletext ne '-1') {
270: %style_for_target = (%style_for_target,
271: &Apache::style::styleparser($target,$styletext));
272: }
1.178 www 273: }
1.255 sakharuk 274: #&printalltags();
1.16 albertel 275: my @pars = ();
1.372 albertel 276: my $pwd=$env{'request.filename'};
1.23 albertel 277: $pwd =~ s:/[^/]*$::;
278: &newparser(\@pars,\$content_file_string,$pwd);
1.24 sakharuk 279:
1.3 sakharuk 280: my $safeeval = new Safe;
1.40 albertel 281: my $safehole = new Safe::Hole;
1.82 ng 282: &init_safespace($target,$safeeval,$safehole,$safeinit);
1.3 sakharuk 283: #-------------------- Redefinition of the target in the case of compound target
284:
285: ($target, my @tenta) = split('&&',$target);
286:
1.150 albertel 287: my @stack = ();
1.3 sakharuk 288: my @parstack = ();
1.358 albertel 289: &initdepth();
290: &init_alarm();
1.101 albertel 291: my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
1.394 albertel 292: $safeeval,\%style_for_target,1);
1.255 sakharuk 293:
1.425 albertel 294: if (@stack) {
1.482 bisitz 295: &warning(&mt('At end of file some tags were still left unclosed:').
296: ' <tt><'.join('></tt>, <tt><',reverse(@stack)).
1.425 albertel 297: '></tt>');
298: }
1.372 albertel 299: if ($env{'request.uri'}) {
300: &writeallows($env{'request.uri'});
1.125 www 301: }
1.281 albertel 302: &do_registered_ssi();
1.204 albertel 303: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.393 albertel 304:
305: &clean_safespace($safeeval);
306:
1.448 albertel 307: if (@script_var_displays) {
1.546 raeburn 308: if ($finaloutput =~ m{</body>\s*</html>\s*$}s) {
309: my $scriptoutput = join('',@script_var_displays);
310: $finaloutput=~s{(</body>\s*</html>)\s*$}{$scriptoutput$1}s;
311: } else {
312: $finaloutput .= join('',@script_var_displays);
313: }
1.448 albertel 314: undef(@script_var_displays);
315: }
1.469 albertel 316: &init_state();
1.372 albertel 317: if ($env{'form.return_only_error_and_warning_counts'}) {
1.473 www 318: if ($env{'request.filename'}=~/\.(html|htm|xml)$/i) {
319: my $error=&verify_html($content_file_string);
320: if ($error) { $errorcount++; }
321: }
1.361 www 322: return "$errorcount:$warningcount";
323: }
1.3 sakharuk 324: return $finaloutput;
1.106 www 325: }
326:
1.191 albertel 327: sub latex_special_symbols {
1.272 albertel 328: my ($string,$where)=@_;
1.396 foxr 329: #
330: # If e.g. in verbatim mode, then don't substitute.
331: # but return original string.
332: #
333: if (!($Apache::lonxml::substitute_LaTeX_symbols)) {
334: return $string;
335: }
1.235 sakharuk 336: if ($where eq 'header') {
1.414 foxr 337: $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10.
1.311 albertel 338: $string =~ s/(\$|%|\{|\})/\\$1/g;
339: $string=&Apache::lonprintout::character_chart($string);
340: # any & or # leftover should be safe to just escape
341: $string=~s/([^\\])\&/$1\\\&/g;
342: $string=~s/([^\\])\#/$1\\\#/g;
1.415 foxr 343: $string =~ s/_/\\_/g; # _ -> \_
344: $string =~ s/\^/\\\^{}/g; # ^ -> \^{}
1.229 sakharuk 345: } else {
1.312 albertel 346: $string=~s/\\/\\ensuremath{\\backslash}/g;
1.367 albertel 347: $string=~s/\\\%|\%/\\\%/g;
348: $string=~s/\\{|{/\\{/g;
349: $string=~s/\\}|}/\\}/g;
1.378 albertel 350: $string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
1.367 albertel 351: $string=~s/\\\$|\$/\\\$/g;
352: $string=~s/\\\_|\_/\\\_/g;
1.313 albertel 353: $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
1.310 sakharuk 354: $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
1.311 albertel 355: $string=&Apache::lonprintout::character_chart($string);
356: # any & or # leftover should be safe to just escape
1.367 albertel 357: $string=~s/\\\&|\&/\\\&/g;
358: $string=~s/\\\#|\#/\\\#/g;
1.332 sakharuk 359: $string=~s/\|/\$\\mid\$/g;
1.310 sakharuk 360: #single { or } How to escape?
1.229 sakharuk 361: }
1.272 albertel 362: return $string;
1.188 sakharuk 363: }
364:
1.101 albertel 365: sub inner_xmlparse {
1.394 albertel 366: my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target,$start)=@_;
1.101 albertel 367: my $finaloutput = '';
368: my $result;
369: my $token;
1.258 albertel 370: my $dontpop=0;
1.389 albertel 371: my $startredirection = $Apache::lonxml::redirection;
1.101 albertel 372: while ( $#$pars > -1 ) {
373: while ($token = $$pars['-1']->get_token) {
1.261 albertel 374: if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
1.101 albertel 375: if ($metamode<1) {
1.190 albertel 376: my $text=$token->[1];
1.193 albertel 377: if ($token->[0] eq 'C' && $target eq 'tex') {
1.239 sakharuk 378: $text = '';
379: # $text = '%'.$text."\n";
1.182 sakharuk 380: }
1.190 albertel 381: $result.=$text;
1.101 albertel 382: }
1.261 albertel 383: } elsif (($token->[0] eq 'D')) {
384: if ($metamode<1 && $target eq 'web') {
385: my $text=$token->[1];
386: $result.=$text;
387: }
1.101 albertel 388: } elsif ($token->[0] eq 'PI') {
1.261 albertel 389: if ($metamode<1 && $target eq 'web') {
1.101 albertel 390: $result=$token->[2];
391: }
392: } elsif ($token->[0] eq 'S') {
1.140 albertel 393: # add tag to stack
1.101 albertel 394: push (@$stack,$token->[1]);
395: # add parameters list to another stack
396: push (@$parstack,&parstring($token));
1.140 albertel 397: &increasedepth($token);
1.212 albertel 398: if ($Apache::lonxml::usestyle &&
399: exists($$style_for_target{$token->[1]})) {
400: $Apache::lonxml::usestyle=0;
401: my $string=$$style_for_target{$token->[1]}.
402: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
403: &Apache::lonxml::newparser($pars,\$string);
1.257 albertel 404: $Apache::lonxml::style_values=$$parstack[-1];
1.259 albertel 405: $Apache::lonxml::style_end_values=$$parstack[-1];
1.101 albertel 406: } else {
407: $result = &callsub("start_$token->[1]", $target, $token, $stack,
408: $parstack, $pars, $safeeval, $style_for_target);
1.140 albertel 409: }
1.101 albertel 410: } elsif ($token->[0] eq 'E') {
1.212 albertel 411: if ($Apache::lonxml::usestyle &&
412: exists($$style_for_target{'/'."$token->[1]"})) {
413: $Apache::lonxml::usestyle=0;
414: my $string=$$style_for_target{'/'.$token->[1]}.
1.258 albertel 415: '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
1.212 albertel 416: &Apache::lonxml::newparser($pars,\$string);
1.259 albertel 417: $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
418: $Apache::lonxml::style_end_values='';
1.258 albertel 419: $dontpop=1;
1.101 albertel 420: } else {
1.258 albertel 421: #clear out any tags that didn't end
422: while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
423: my $lasttag=$$stack[-1];
1.317 albertel 424: if ($token->[1] =~ /^\Q$lasttag\E$/i) {
1.483 bisitz 425: &Apache::lonxml::warning(&mt('Using tag [_1] on line [_2] as end tag to [_3]','</'.$token->[1].'>','.$token->[3].','<'.$$stack[-1].'>'));
1.258 albertel 426: last;
427: } else {
1.483 bisitz 428: &Apache::lonxml::warning(&mt('Found tag [_1] on line [_2] when looking for [_3] in file.','</'.$token->[1].'>',$token->[3],'</'.$$stack[-1].'>'));
1.258 albertel 429: &end_tag($stack,$parstack,$token);
430: }
431: }
432: $result = &callsub("end_$token->[1]", $target, $token, $stack,
433: $parstack, $pars,$safeeval, $style_for_target);
1.101 albertel 434: }
435: } else {
436: &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
437: }
438: #evaluate variable refs in result
1.282 albertel 439: if ($Apache::lonxml::post_evaluate &&$result ne "") {
1.257 albertel 440: my $extras;
441: if (!$Apache::lonxml::usestyle) {
442: $extras=$Apache::lonxml::style_values;
443: }
1.488 raeburn 444: if ( $#$parstack > -1 ) {
445: $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
446: } else {
447: $result= &Apache::run::evaluate($result,$safeeval,$extras);
1.487 raeburn 448: }
1.163 albertel 449: }
1.282 albertel 450: $Apache::lonxml::post_evaluate=1;
451:
1.190 albertel 452: if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
1.249 albertel 453: #Style file definitions should be correct
1.250 albertel 454: if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
1.311 albertel 455: $result=&latex_special_symbols($result);
1.249 albertel 456: }
1.190 albertel 457: }
458:
1.169 albertel 459: if ($Apache::lonxml::redirection) {
460: $Apache::lonxml::outputstack['-1'] .= $result;
461: } else {
462: $finaloutput.=$result;
463: }
464: $result = '';
465:
1.258 albertel 466: if ($token->[0] eq 'E' && !$dontpop) {
1.101 albertel 467: &end_tag($stack,$parstack,$token);
468: }
1.258 albertel 469: $dontpop=0;
1.224 albertel 470: }
1.212 albertel 471: if ($#$pars > -1) {
472: pop @$pars;
473: pop @Apache::lonxml::pwd;
474: }
1.101 albertel 475: }
476:
477: # if ($target eq 'meta') {
478: # $finaloutput.=&endredirection;
479: # }
480:
1.394 albertel 481: if ( $start && $target eq 'grade') { &endredirection(); }
1.389 albertel 482: if ( $Apache::lonxml::redirection > $startredirection) {
483: while ($Apache::lonxml::redirection > $startredirection) {
484: $finaloutput .= &endredirection();
1.387 albertel 485: }
486: }
1.101 albertel 487: if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
488: $finaloutput=&afterburn($finaloutput);
1.509 www 489: }
490: if ($target eq 'modified') {
491: # if modfied, handle startpart and endpart
492: $finaloutput=~s/\<startpartmarker[^\>]*\>(.*)\<endpartmarker[^\>]*\>/<part>$1<\/part>/gs;
1.216 sakharuk 493: }
1.101 albertel 494: return $finaloutput;
495: }
1.67 www 496:
1.318 matthew 497: ##
498: ## Looks to see if there is a subroutine defined for this tag. If so, call it,
499: ## otherwise do not call it as we do not know what it is.
500: ##
1.7 albertel 501: sub callsub {
1.84 albertel 502: my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 503: my $currentstring='';
1.72 albertel 504: my $nodefault;
1.7 albertel 505: {
1.59 albertel 506: my $sub1;
1.7 albertel 507: no strict 'refs';
1.68 www 508: my $tag=$token->[1];
1.236 www 509: # get utterly rid of extended html tags
510: if ($tag=~/^x\-/i) { return ''; }
1.141 albertel 511: my $space=$Apache::lonxml::alltags{$tag}[-1];
1.68 www 512: if (!$space) {
1.141 albertel 513: $tag=~tr/A-Z/a-z/;
1.68 www 514: $sub=~tr/A-Z/a-z/;
1.141 albertel 515: $space=$Apache::lonxml::alltags{$tag}[-1]
1.68 www 516: }
1.97 albertel 517:
518: my $deleted=0;
519: if (($token->[0] eq 'S') && ($target eq 'modified')) {
520: $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
521: $parstack,$parser,$safeeval,
522: $style);
523: }
524: if (!$deleted) {
525: if ($space) {
1.220 albertel 526: #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
1.97 albertel 527: $sub1="$space\:\:$sub";
528: ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
529: $parstack,$parser,$safeeval,
530: $style);
531: } else {
1.318 matthew 532: if ($target eq 'tex') {
533: # throw away tag name
534: return '';
535: }
1.220 albertel 536: #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
1.97 albertel 537: if ($metamode <1) {
538: if (defined($token->[4]) && ($metamode < 1)) {
539: $currentstring = $token->[4];
540: } else {
541: $currentstring = $token->[2];
542: }
1.62 sakharuk 543: }
1.7 albertel 544: }
1.97 albertel 545: # &Apache::lonxml::debug("nodefalt:$nodefault:");
546: if ($currentstring eq '' && $nodefault eq '') {
547: if ($target eq 'edit') {
1.220 albertel 548: #&Apache::lonxml::debug("doing default edit for $token->[1]");
1.97 albertel 549: if ($token->[0] eq 'S') {
550: $currentstring = &Apache::edit::tag_start($target,$token);
551: } elsif ($token->[0] eq 'E') {
552: $currentstring = &Apache::edit::tag_end($target,$token);
553: }
1.441 albertel 554: }
555: }
556: if ($target eq 'modified' && $nodefault eq '') {
557: if ($currentstring eq '') {
558: if ($token->[0] eq 'S') {
559: $currentstring = $token->[4];
560: } elsif ($token->[0] eq 'E') {
561: $currentstring = $token->[2];
562: } else {
563: $currentstring = $token->[2];
564: }
565: }
1.97 albertel 566: if ($token->[0] eq 'S') {
1.447 albertel 567: $currentstring.=&Apache::edit::handle_insert();
1.210 www 568: } elsif ($token->[0] eq 'E') {
1.447 albertel 569: $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
1.97 albertel 570: }
1.72 albertel 571: }
1.7 albertel 572: }
573: use strict 'refs';
574: }
575: return $currentstring;
1.82 ng 576: }
577:
1.465 albertel 578: {
579: my %state;
580:
581: sub init_state {
582: undef(%state);
583: }
584:
585: sub set_state {
586: my ($key,$value) = @_;
587: $state{$key} = $value;
588: return $value;
589: }
590: sub get_state {
591: my ($key) = @_;
592: return $state{$key};
593: }
594: }
595:
1.96 albertel 596: sub setup_globals {
1.172 albertel 597: my ($request,$target)=@_;
598: $Apache::lonxml::request=$request;
1.205 www 599: $errorcount=0;
600: $warningcount=0;
1.490 www 601: $Apache::lonxml::internal_error=0;
1.207 albertel 602: $Apache::lonxml::default_homework_loaded=0;
1.212 albertel 603: $Apache::lonxml::usestyle=1;
1.204 albertel 604: &init_counter();
1.462 foxr 605: &clear_bubble_lines_for_part();
1.465 albertel 606: &init_state();
1.469 albertel 607: &set_state('target',$target);
1.101 albertel 608: @Apache::lonxml::pwd=();
1.124 albertel 609: @Apache::lonxml::extlinks=();
1.448 albertel 610: @script_var_displays=();
1.281 albertel 611: @Apache::lonxml::ssi_info=();
1.282 albertel 612: $Apache::lonxml::post_evaluate=1;
1.295 albertel 613: $Apache::lonxml::warnings_error_header='';
1.397 albertel 614: $Apache::lonxml::substitute_LaTeX_symbols = 1;
1.96 albertel 615: if ($target eq 'meta') {
616: $Apache::lonxml::redirection = 0;
617: $Apache::lonxml::metamode = 1;
618: $Apache::lonxml::evaluate = 1;
619: $Apache::lonxml::import = 0;
1.129 albertel 620: } elsif ($target eq 'answer') {
621: $Apache::lonxml::redirection = 0;
622: $Apache::lonxml::metamode = 1;
623: $Apache::lonxml::evaluate = 1;
624: $Apache::lonxml::import = 1;
1.96 albertel 625: } elsif ($target eq 'grade') {
1.387 albertel 626: &startredirection(); #ended in inner_xmlparse on exit
1.96 albertel 627: $Apache::lonxml::metamode = 0;
628: $Apache::lonxml::evaluate = 1;
629: $Apache::lonxml::import = 1;
630: } elsif ($target eq 'modified') {
631: $Apache::lonxml::redirection = 0;
632: $Apache::lonxml::metamode = 0;
633: $Apache::lonxml::evaluate = 0;
634: $Apache::lonxml::import = 0;
635: } elsif ($target eq 'edit') {
636: $Apache::lonxml::redirection = 0;
637: $Apache::lonxml::metamode = 0;
638: $Apache::lonxml::evaluate = 0;
639: $Apache::lonxml::import = 0;
1.163 albertel 640: } elsif ($target eq 'analyze') {
641: $Apache::lonxml::redirection = 0;
642: $Apache::lonxml::metamode = 0;
643: $Apache::lonxml::evaluate = 1;
644: $Apache::lonxml::import = 1;
1.96 albertel 645: } else {
646: $Apache::lonxml::redirection = 0;
647: $Apache::lonxml::metamode = 0;
648: $Apache::lonxml::evaluate = 1;
649: $Apache::lonxml::import = 1;
650: }
651: }
652:
1.82 ng 653: sub init_safespace {
654: my ($target,$safeeval,$safehole,$safeinit) = @_;
1.511 foxr 655: $safeeval->reval('use LaTeX::Table;');
1.393 albertel 656: $safeeval->deny_only(':dangerous');
1.544 raeburn 657: $safeeval->reval('use LONCAPA::LCMathComplex;');
1.383 albertel 658: $safeeval->permit_only(":default");
1.82 ng 659: $safeeval->permit("entereval");
660: $safeeval->permit(":base_math");
661: $safeeval->permit("sort");
1.286 albertel 662: $safeeval->permit("time");
1.480 www 663: $safeeval->permit("caller");
1.371 albertel 664: $safeeval->deny("rand");
665: $safeeval->deny("srand");
1.82 ng 666: $safeeval->deny(":base_io");
1.102 albertel 667: $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
1.251 albertel 668: $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
1.82 ng 669: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
1.324 albertel 670: $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
671: '&chem_standard_order');
1.369 albertel 672: $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status');
1.471 bisitz 673: $safehole->wrap(\&Apache::response::implicit_multiplication,$safeeval,'&implicit_multiplication');
1.324 albertel 674:
1.431 www 675: $safehole->wrap(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval');
1.432 www 676: $safehole->wrap(\&Apache::lonmaxima::maxima_check,$safeeval,'&maxima_check');
1.433 albertel 677: $safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval,
678: '&maxima_cas_formula_fix');
679:
1.494 www 680: $safehole->wrap(\&Apache::lonr::r_eval,$safeeval,'&r_eval');
1.497 www 681: $safehole->wrap(\&Apache::lonr::Rentry,$safeeval,'&Rentry');
682: $safehole->wrap(\&Apache::lonr::Rarray,$safeeval,'&Rarray');
1.494 www 683: $safehole->wrap(\&Apache::lonr::r_check,$safeeval,'&r_check');
684: $safehole->wrap(\&Apache::lonr::r_cas_formula_fix,$safeeval,
685: '&r_cas_formula_fix');
686:
1.433 albertel 687: $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
688: '&capa_formula_fix');
1.431 www 689:
1.480 www 690: $safehole->wrap(\&Apache::lonlocal::locallocaltime,$safeeval,
691: '&locallocaltime');
692:
1.82 ng 693: $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
694: $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
695: $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
696: $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
697: $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
698: $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
699: $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
700: $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
701: $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
702: $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
703: $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
704: $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
705: $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
706: $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
707: $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
708: $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
709: $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
710: $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
711: $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
1.215 albertel 712:
713: $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
714: $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
715: $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
716: $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
717: $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
718: $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
719: $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
720: $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
721: $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
722: $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
723: $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
724: $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
725: $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
726: $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
727: $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
728: $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
729: $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
730: $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
731: $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
732: $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
733: $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
734: $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
735:
1.383 albertel 736: $safehole->wrap(\&Math::Cephes::Matrix::mat,$safeeval,'&mat');
737: $safehole->wrap(\&Math::Cephes::Matrix::new,$safeeval,
738: '&Math::Cephes::Matrix::new');
739: $safehole->wrap(\&Math::Cephes::Matrix::coef,$safeeval,
740: '&Math::Cephes::Matrix::coef');
741: $safehole->wrap(\&Math::Cephes::Matrix::clr,$safeeval,
742: '&Math::Cephes::Matrix::clr');
743: $safehole->wrap(\&Math::Cephes::Matrix::add,$safeeval,
744: '&Math::Cephes::Matrix::add');
745: $safehole->wrap(\&Math::Cephes::Matrix::sub,$safeeval,
746: '&Math::Cephes::Matrix::sub');
747: $safehole->wrap(\&Math::Cephes::Matrix::mul,$safeeval,
748: '&Math::Cephes::Matrix::mul');
749: $safehole->wrap(\&Math::Cephes::Matrix::div,$safeeval,
750: '&Math::Cephes::Matrix::div');
751: $safehole->wrap(\&Math::Cephes::Matrix::inv,$safeeval,
752: '&Math::Cephes::Matrix::inv');
753: $safehole->wrap(\&Math::Cephes::Matrix::transp,$safeeval,
754: '&Math::Cephes::Matrix::transp');
755: $safehole->wrap(\&Math::Cephes::Matrix::simq,$safeeval,
756: '&Math::Cephes::Matrix::simq');
757: $safehole->wrap(\&Math::Cephes::Matrix::mat_to_vec,$safeeval,
758: '&Math::Cephes::Matrix::mat_to_vec');
759: $safehole->wrap(\&Math::Cephes::Matrix::vec_to_mat,$safeeval,
760: '&Math::Cephes::Matrix::vec_to_mat');
761: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
762: '&Math::Cephes::Matrix::check');
763: $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
764: '&Math::Cephes::Matrix::check');
765:
1.215 albertel 766: # $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
767: # $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
768: # $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
769: # $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
770: # $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
771: # $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
772:
1.91 ng 773: $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
774: $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
775: $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
776: $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
777: $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
778: $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
779: $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
780: $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
781: $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
782: $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
783: $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
1.93 ng 784: $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
1.91 ng 785: $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
786: $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
787: $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
788: $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
789: $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
790: $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
791: $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
792: $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
793: $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
1.458 albertel 794: $safehole->wrap(\&Apache::loncommon::languages,$safeeval,'&languages');
1.305 albertel 795: $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
1.311 albertel 796: $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
1.420 albertel 797: $safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
798: $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS');
1.322 albertel 799: $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
1.521 www 800: $safehole->wrap(\&Apache::functionplotresponse::fpr_val,$safeeval,'&fpr_val');
1.520 www 801: $safehole->wrap(\&Apache::functionplotresponse::fpr_f,$safeeval,'&fpr_f');
802: $safehole->wrap(\&Apache::functionplotresponse::fpr_dfdx,$safeeval,'&fpr_dfdx');
803: $safehole->wrap(\&Apache::functionplotresponse::fpr_d2fdx2,$safeeval,'&fpr_d2fdx2');
1.524 www 804: $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorcoords,$safeeval,'&fpr_vectorcoords');
805: $safehole->wrap(\&Apache::functionplotresponse::fpr_objectcoords,$safeeval,'&fpr_objectcoords');
806: $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorlength,$safeeval,'&fpr_vectorlength');
807: $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorangle,$safeeval,'&fpr_vectorangle');
1.520 www 808:
1.430 albertel 809: # use Data::Dumper;
810: # $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper');
1.82 ng 811: #need to inspect this class of ops
812: # $safeeval->deny(":base_orig");
1.331 albertel 813: $safeeval->permit("require");
1.91 ng 814: $safeinit .= ';$external::target="'.$target.'";';
1.82 ng 815: &Apache::run::run($safeinit,$safeeval);
1.552 ! raeburn 816: my $rawrndseed = &initialize_rndseed($safeeval);
! 817: if ($target eq 'grade') {
! 818: $Apache::lonhomework::rawrndseed = $rawrndseed;
! 819: }
1.373 albertel 820: }
1.303 albertel 821:
1.393 albertel 822: sub clean_safespace {
823: my ($safeeval) = @_;
824: delete_package_recurse($safeeval->{Root});
825: }
826:
827: sub delete_package_recurse {
828: my ($package) = @_;
829: my @subp;
830: {
831: no strict 'refs';
832: while (my ($key,$val) = each(%{*{"$package\::"}})) {
833: if (!defined($val)) { next; }
834: local (*ENTRY) = $val;
835: if (defined *ENTRY{HASH} && $key =~ /::$/ &&
836: $key ne "main::" && $key ne "<none>::")
837: {
838: my ($p) = $package ne "main" ? "$package\::" : "";
839: ($p .= $key) =~ s/::$//;
840: push(@subp,$p);
841: }
842: }
843: }
844: foreach my $p (@subp) {
845: delete_package_recurse($p);
846: }
847: Symbol::delete_package($package);
848: }
849:
1.373 albertel 850: sub initialize_rndseed {
851: my ($safeeval)=@_;
852: my $rndseed;
1.423 albertel 853: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.373 albertel 854: $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
855: my $safeinit = '$external::randomseed="'.$rndseed.'";';
856: &Apache::lonxml::debug("Setting rndseed to $rndseed");
857: &Apache::run::run($safeinit,$safeeval);
1.552 ! raeburn 858: return $rndseed;
1.207 albertel 859: }
860:
861: sub default_homework_load {
862: my ($safeeval)=@_;
863: &Apache::lonxml::debug('Loading default_homework');
1.522 raeburn 864: my $default=&Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonIncludes'}.
865: '/default_homework.lcpm');
1.241 albertel 866: if ($default eq -1) {
1.207 albertel 867: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
868: } else {
869: &Apache::run::run($default,$safeeval);
870: $Apache::lonxml::default_homework_loaded=1;
871: }
1.17 albertel 872: }
873:
1.358 albertel 874: {
875: my $alarm_depth;
876: sub init_alarm {
877: alarm(0);
878: $alarm_depth=0;
879: }
880:
881: sub start_alarm {
882: if ($alarm_depth<1) {
883: my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'});
884: if ($old) {
885: &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur.");
886: }
887: }
888: $alarm_depth++;
889: }
890:
891: sub end_alarm {
892: $alarm_depth--;
893: if ($alarm_depth<1) { alarm(0); }
894: }
895: }
1.328 albertel 896: my $metamode_was;
1.55 albertel 897: sub startredirection {
1.328 albertel 898: if (!$Apache::lonxml::redirection) {
899: $metamode_was=$Apache::lonxml::metamode;
900: }
901: $Apache::lonxml::metamode=0;
902: $Apache::lonxml::redirection++;
903: push (@Apache::lonxml::outputstack, '');
1.55 albertel 904: }
905:
906: sub endredirection {
1.328 albertel 907: if (!$Apache::lonxml::redirection) {
1.380 www 908: &Apache::lonxml::error("Endredirection was called before a startredirection, perhaps you have unbalanced tags. Some debugging information:".join ":",caller);
1.328 albertel 909: return '';
910: }
911: $Apache::lonxml::redirection--;
912: if (!$Apache::lonxml::redirection) {
913: $Apache::lonxml::metamode=$metamode_was;
914: }
915: pop @Apache::lonxml::outputstack;
1.97 albertel 916: }
1.459 albertel 917: sub in_redirection {
918: return ($Apache::lonxml::redirection > 0)
919: }
1.97 albertel 920:
921: sub end_tag {
922: my ($tagstack,$parstack,$token)=@_;
923: pop(@$tagstack);
924: pop(@$parstack);
925: &decreasedepth($token);
1.55 albertel 926: }
927:
1.17 albertel 928: sub initdepth {
929: @Apache::lonxml::depthcounter=();
1.439 albertel 930: undef($Apache::lonxml::last_depth_count);
1.17 albertel 931: }
932:
1.438 albertel 933:
1.339 albertel 934: my @timers;
935: my $lasttime;
1.438 albertel 936: # @Apache::lonxml::depthcounter -> count of tags that exist so
937: # far at each level
1.439 albertel 938: # $Apache::lonxml::last_depth_count -> when ascending, need to
939: # remember the count for the level below the current level (for
940: # example going from 1_2 -> 1 -> 1_3 need to remember the 2 )
1.438 albertel 941:
1.17 albertel 942: sub increasedepth {
1.19 albertel 943: my ($token) = @_;
1.439 albertel 944: push(@Apache::lonxml::depthcounter,$Apache::lonxml::last_depth_count+1);
945: undef($Apache::lonxml::last_depth_count);
1.340 albertel 946: my $time;
947: if ($Apache::lonxml::debug eq "1") {
948: push(@timers,[&gettimeofday()]);
949: $time=&tv_interval($lasttime);
950: $lasttime=[&gettimeofday()];
951: }
1.439 albertel 952: my $spacing=' 'x($#Apache::lonxml::depthcounter);
1.438 albertel 953: $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
1.439 albertel 954: # &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time");
1.54 albertel 955: #print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
1.17 albertel 956: }
957:
958: sub decreasedepth {
1.19 albertel 959: my ($token) = @_;
1.439 albertel 960: if ( $#Apache::lonxml::depthcounter == -1) {
961: &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
1.43 albertel 962: }
1.439 albertel 963: $Apache::lonxml::last_depth_count = pop(@Apache::lonxml::depthcounter);
964:
1.340 albertel 965: my ($timer,$time);
966: if ($Apache::lonxml::debug eq "1") {
967: $timer=pop(@timers);
968: $time=&tv_interval($lasttime);
969: $lasttime=[&gettimeofday()];
970: }
1.439 albertel 971: my $spacing=' 'x($#Apache::lonxml::depthcounter);
972: $Apache::lonxml::curdepth = join('_',@Apache::lonxml::depthcounter);
973: # &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time : ".&tv_interval($timer));
1.54 albertel 974: #print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
1.1 sakharuk 975: }
1.19 albertel 976:
1.399 albertel 977: sub get_id {
978: my ($parstack,$safeeval)=@_;
979: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.449 albertel 980: if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) {
1.498 bisitz 981: &error(&mt('ID [_1] contains invalid characters. IDs are only allowed to contain letters, numbers, spaces and -','"<tt>'.$id.'</tt>"'));
1.399 albertel 982: }
983: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
984: return $id;
985: }
986:
1.180 albertel 987: sub get_all_text_unbalanced {
1.190 albertel 988: #there is a copy of this in lonpublisher.pm
1.326 albertel 989: my($tag,$pars)= @_;
990: my $token;
991: my $result='';
992: $tag='<'.$tag.'>';
993: while ($token = $$pars[-1]->get_token) {
994: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.386 albertel 995: if ($token->[0] eq 'T' && $token->[2]) {
1.382 albertel 996: $result.='<![CDATA['.$token->[1].']]>';
997: } else {
998: $result.=$token->[1];
999: }
1.326 albertel 1000: } elsif ($token->[0] eq 'PI') {
1001: $result.=$token->[2];
1002: } elsif ($token->[0] eq 'S') {
1003: $result.=$token->[4];
1004: } elsif ($token->[0] eq 'E') {
1005: $result.=$token->[2];
1006: }
1007: if ($result =~ /\Q$tag\E/is) {
1008: ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
1009: #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
1010: #&Apache::lonxml::debug('Result is :'.$1);
1011: $redo=$tag.$redo;
1012: &Apache::lonxml::newparser($pars,\$redo);
1013: last;
1014: }
1015: }
1016: return $result
1.462 foxr 1017:
1.204 albertel 1018: }
1019:
1.462 foxr 1020: #########################################################################
1021: # #
1022: # bubble line counter management #
1023: # #
1024: #########################################################################
1025:
1.447 albertel 1026: =pod
1027:
1028: For bubble grading mode and exam bubble printing mode, the tracking of
1029: the current 'bubble line number' is stored in the %env element
1030: 'form.counter', and is modifed and handled by the following routines.
1031:
1032: The value of it is stored in $Apache:lonxml::counter when live and
1033: stored back to env after done.
1034:
1.522 raeburn 1035: =item &increment_counter($increment, $part_response);
1.447 albertel 1036:
1037: Increments the internal counter environment variable a specified amount
1038:
1039: Optional Arguments:
1040: $increment - amount to increment by (defaults to 1)
1.462 foxr 1041: Also 1 if the value is negative or zero.
1.467 foxr 1042: $part_response - A concatenation of the part and response id
1043: identifying exactly what is being 'answered'.
1044:
1.447 albertel 1045:
1046: =cut
1047:
1.204 albertel 1048: sub increment_counter {
1.467 foxr 1049: my ($increment, $part_response) = @_;
1.481 raeburn 1050: if ($env{'form.grade_noincrement'}) { return; }
1.462 foxr 1051: if (!defined($increment) || $increment le 0) {
1052: $increment = 1;
1053: }
1054: $Apache::lonxml::counter += $increment;
1055:
1.466 foxr 1056: # If the caller supplied the response_id parameter,
1.462 foxr 1057: # Maintain its counter.. creating if necessary.
1058:
1.470 albertel 1059: if (defined($part_response)) {
1.467 foxr 1060: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1061: $Apache::lonxml::counters_per_part{$part_response} = 0;
1.462 foxr 1062: }
1.467 foxr 1063: $Apache::lonxml::counters_per_part{$part_response} += $increment;
1064: my $new_value = $Apache::lonxml::counters_per_part{$part_response};
1.247 albertel 1065: }
1.462 foxr 1066:
1.289 sakharuk 1067: $Apache::lonxml::counter_changed=1;
1.204 albertel 1068: }
1069:
1.447 albertel 1070: =pod
1071:
1.461 foxr 1072: =item &init_counter($increment);
1.447 albertel 1073:
1074: Initialize the internal counter environment variable
1075:
1076: =cut
1077:
1.204 albertel 1078: sub init_counter {
1.391 albertel 1079: if ($env{'request.state'} eq 'construct') {
1080: $Apache::lonxml::counter=1;
1081: $Apache::lonxml::counter_changed=1;
1082: } elsif (defined($env{'form.counter'})) {
1.372 albertel 1083: $Apache::lonxml::counter=$env{'form.counter'};
1.247 albertel 1084: $Apache::lonxml::counter_changed=0;
1.237 sakharuk 1085: } else {
1.204 albertel 1086: $Apache::lonxml::counter=1;
1.247 albertel 1087: $Apache::lonxml::counter_changed=1;
1.204 albertel 1088: }
1089: }
1090:
1091: sub store_counter {
1.474 raeburn 1092: &Apache::lonnet::appenv({'form.counter' => $Apache::lonxml::counter});
1.401 albertel 1093: $Apache::lonxml::counter_changed=0;
1.204 albertel 1094: return '';
1.180 albertel 1095: }
1096:
1.398 albertel 1097: {
1098: my $state;
1099: sub clear_problem_counter {
1100: undef($state);
1101: &Apache::lonnet::delenv('form.counter');
1102: &Apache::lonxml::init_counter();
1103: &Apache::lonxml::store_counter();
1104: }
1105:
1106: sub remember_problem_counter {
1.422 albertel 1107: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.398 albertel 1108: $state = $env{'form.counter'};
1109: }
1110:
1111: sub restore_problem_counter {
1112: if (defined($state)) {
1.474 raeburn 1113: &Apache::lonnet::appenv({'form.counter' => $state});
1.398 albertel 1114: }
1115: }
1.401 albertel 1116: sub get_problem_counter {
1117: if ($Apache::lonxml::counter_changed) { &store_counter() }
1.422 albertel 1118: &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
1.401 albertel 1119: return $env{'form.counter'};
1120: }
1.398 albertel 1121: }
1122:
1.462 foxr 1123: =pod
1124:
1.468 albertel 1125: =item bubble_lines_for_part(part_response)
1.462 foxr 1126:
1127: Returns the number of lines required to get a response for
1.467 foxr 1128: $part_response (this is just $Apache::lonxml::counters_per_part{$part_response}
1.462 foxr 1129:
1130: =cut
1131:
1132: sub bubble_lines_for_part {
1.467 foxr 1133: my ($part_response) = @_;
1.462 foxr 1134:
1.467 foxr 1135: if (!defined($Apache::lonxml::counters_per_part{$part_response})) {
1.462 foxr 1136: return 0;
1137: } else {
1.467 foxr 1138: return $Apache::lonxml::counters_per_part{$part_response};
1.462 foxr 1139: }
1140: }
1141:
1142: =pod
1143:
1144: =item clear_bubble_lines_for_part
1145:
1146: Clears the hash of bubble lines per part. If a caller
1147: needs to analyze several resources this should be called between
1148: resources to reset the hash for each problem being analyzed.
1149:
1150: =cut
1151:
1152: sub clear_bubble_lines_for_part {
1153: undef(%Apache::lonxml::counters_per_part);
1154: }
1155:
1156: =pod
1157:
1.468 albertel 1158: =item set_bubble_lines(part_response, value)
1.462 foxr 1159:
1160: If there is a problem part, that for whatever reason
1161: requires bubble lines that are not
1162: the same as the counter increment, it can call this sub during
1163: analysis to set its hash value explicitly.
1164:
1165: =cut
1166:
1167: sub set_bubble_lines {
1.467 foxr 1168: my ($part_response, $value) = @_;
1.462 foxr 1169:
1.467 foxr 1170: $Apache::lonxml::counters_per_part{$part_response} = $value;
1.462 foxr 1171: }
1172:
1173: =pod
1174:
1175: =item get_bubble_line_hash
1176:
1177: Returns the current bubble line hash. This is assumed to
1178: be small so we return a copy
1179:
1180:
1181: =cut
1182:
1183: sub get_bubble_line_hash {
1184: return %Apache::lonxml::counters_per_part;
1185: }
1186:
1187:
1188: #--------------------------------------------------
1189:
1.19 albertel 1190: sub get_all_text {
1.270 albertel 1191: my($tag,$pars,$style)= @_;
1192: my $gotfullstack=1;
1193: if (ref($pars) ne 'ARRAY') {
1194: $gotfullstack=0;
1195: $pars=[$pars];
1196: }
1197: if (ref($style) ne 'HASH') {
1198: $style={};
1199: }
1200: my $depth=0;
1201: my $token;
1202: my $result='';
1203: if ( $tag =~ m:^/: ) {
1204: my $tag=substr($tag,1);
1205: #&Apache::lonxml::debug("have:$tag:");
1206: my $top_empty=0;
1207: while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
1208: while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
1209: #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
1210: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
1.382 albertel 1211: if ($token->[2]) {
1212: $result.='<![CDATA['.$token->[1].']]>';
1213: } else {
1214: $result.=$token->[1];
1215: }
1.270 albertel 1216: } elsif ($token->[0] eq 'PI') {
1217: $result.=$token->[2];
1218: } elsif ($token->[0] eq 'S') {
1.316 albertel 1219: if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
1220: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1221: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1222: $result.=$token->[4];
1223: } elsif ($token->[0] eq 'E') {
1.316 albertel 1224: if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
1.270 albertel 1225: #skip sending back the last end tag
1.283 albertel 1226: if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
1.270 albertel 1227: my $string=
1228: '<LONCAPA_INTERNAL_TURN_STYLE_OFF end="yes" />'.
1229: $$style{'/'.$token->[1]}.
1230: $token->[2].
1231: '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
1232: &Apache::lonxml::newparser($pars,\$string);
1233: #&Apache::lonxml::debug("reParsing $string");
1234: next;
1235: }
1236: if ($depth > -1) {
1237: $result.=$token->[2];
1238: } else {
1239: $$pars[-1]->unget_token($token);
1240: }
1241: }
1242: }
1243: if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
1244: if (($depth >=0) && ($#$pars > 0) ) {
1245: pop(@$pars);
1246: pop(@Apache::lonxml::pwd);
1247: }
1248: }
1249: if ($top_empty && $depth >= 0) {
1250: #never found the end tag ran out of text, throw error send back blank
1251: &error('Never found end tag for <'.$tag.
1252: '> current string <pre>'.
1.314 albertel 1253: &HTML::Entities::encode($result,'<>&"').
1.270 albertel 1254: '</pre>');
1255: if ($gotfullstack) {
1256: my $newstring='</'.$tag.'>'.$result;
1257: &Apache::lonxml::newparser($pars,\$newstring);
1258: }
1259: $result='';
1260: }
1261: } else {
1262: while ($#$pars > -1) {
1263: while ($token = $$pars[-1]->get_token) {
1264: #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
1265: if (($token->[0] eq 'T')||($token->[0] eq 'C')||
1266: ($token->[0] eq 'D')) {
1.382 albertel 1267: if ($token->[2]) {
1268: $result.='<![CDATA['.$token->[1].']]>';
1269: } else {
1270: $result.=$token->[1];
1271: }
1.270 albertel 1272: } elsif ($token->[0] eq 'PI') {
1273: $result.=$token->[2];
1274: } elsif ($token->[0] eq 'S') {
1.316 albertel 1275: if ( $token->[1] =~ /^\Q$tag\E$/i) {
1.270 albertel 1276: $$pars[-1]->unget_token($token); last;
1277: } else {
1278: $result.=$token->[4];
1279: }
1.316 albertel 1280: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
1281: if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
1.270 albertel 1282: } elsif ($token->[0] eq 'E') {
1283: $result.=$token->[2];
1284: }
1285: }
1286: if (($#$pars > 0) ) {
1287: pop(@$pars);
1288: pop(@Apache::lonxml::pwd);
1289: } else { last; }
1290: }
1291: }
1292: #&Apache::lonxml::debug("Exit:$result:");
1293: return $result
1.19 albertel 1294: }
1295:
1.23 albertel 1296: sub newparser {
1297: my ($parser,$contentref,$dir) = @_;
1.167 albertel 1298: push (@$parser,HTML::LCParser->new($contentref));
1.365 albertel 1299: $$parser[-1]->xml_mode(1);
1300: $$parser[-1]->marked_sections(1);
1.23 albertel 1301: if ( $dir eq '' ) {
1302: push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
1303: } else {
1304: push (@Apache::lonxml::pwd, $dir);
1305: }
1306: }
1.1 sakharuk 1307:
1.8 albertel 1308: sub parstring {
1.417 albertel 1309: my ($token) = @_;
1310: my (@vars,@values);
1311: foreach my $attr (@{$token->[3]}) {
1312: if ($attr!~/\W/) {
1313: my $val=$token->[2]->{$attr};
1314: $val =~ s/([\%\@\\\"\'])/\\$1/g;
1315: $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
1316: $val =~ s/(\$)$/\\$1/;
1317: #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
1318: push(@vars,"\$$attr");
1319: push(@values,"\"$val\"");
1320: }
1321: }
1322: my $var_init =
1323: (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
1324: : '';
1325: return $var_init;
1.8 albertel 1326: }
1.22 albertel 1327:
1.384 albertel 1328: sub extlink {
1329: my ($res,$exact)=@_;
1330: if (!$exact) {
1331: $res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
1332: }
1.550 raeburn 1333: push(@Apache::lonxml::extlinks,$res);
1.384 albertel 1334: }
1335:
1.34 www 1336: sub writeallows {
1.126 www 1337: unless ($#extlinks>=0) { return; }
1.377 albertel 1338: my $thisurl = &Apache::lonnet::clutter(shift);
1.372 albertel 1339: if ($env{'httpref.'.$thisurl}) {
1340: $thisurl=$env{'httpref.'.$thisurl};
1.111 www 1341: }
1.34 www 1342: my $thisdir=$thisurl;
1343: $thisdir=~s/\/[^\/]+$//;
1344: my %httpref=();
1.142 albertel 1345: foreach (@extlinks) {
1.34 www 1346: $httpref{'httpref.'.
1.444 albertel 1347: &Apache::lonnet::hreflocation($thisdir,&unescape($_))}=$thisurl;
1.142 albertel 1348: }
1.126 www 1349: @extlinks=();
1.474 raeburn 1350: &Apache::lonnet::appenv(\%httpref);
1.34 www 1351: }
1352:
1.281 albertel 1353: sub register_ssi {
1354: my ($url,%form)=@_;
1355: push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
1356: return '';
1357: }
1358:
1359: sub do_registered_ssi {
1360: foreach my $info (@Apache::lonxml::ssi_info) {
1361: my %form=%{ $info->{'form'}};
1362: my $url=$info->{'url'};
1363: &Apache::lonnet::ssi($url,%form);
1364: }
1365: }
1.448 albertel 1366:
1367: sub add_script_result {
1368: my ($display) = @_;
1.546 raeburn 1369: if ($display ne '') {
1370: push(@script_var_displays, $display);
1371: }
1.448 albertel 1372: }
1373:
1.66 www 1374: #
1375: # Afterburner handles anchors, highlights and links
1376: #
1377: sub afterburn {
1378: my $result=shift;
1.154 albertel 1379: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1380: ['highlight','anchor','link']);
1.372 albertel 1381: if ($env{'form.highlight'}) {
1382: foreach (split(/\,/,$env{'form.highlight'})) {
1.66 www 1383: my $anchorname=$_;
1384: my $matchthis=$anchorname;
1385: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1386: $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
1.142 albertel 1387: }
1.66 www 1388: }
1.372 albertel 1389: if ($env{'form.link'}) {
1390: foreach (split(/\,/,$env{'form.link'})) {
1.66 www 1391: my ($anchorname,$linkurl)=split(/\>/,$_);
1392: my $matchthis=$anchorname;
1393: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1394: $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
1.142 albertel 1395: }
1.66 www 1396: }
1.372 albertel 1397: if ($env{'form.anchor'}) {
1398: my $anchorname=$env{'form.anchor'};
1.66 www 1399: my $matchthis=$anchorname;
1400: $matchthis=~s/\_+/\\s\+/g;
1.317 albertel 1401: $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
1.66 www 1402: $result.=(<<"ENDSCRIPT");
1.226 albertel 1403: <script type="text/javascript">
1.66 www 1404: document.location.hash='$anchorname';
1405: </script>
1406: ENDSCRIPT
1407: }
1408: return $result;
1409: }
1410:
1.79 www 1411: sub storefile {
1412: my ($file,$contents)=@_;
1.290 albertel 1413: &Apache::lonnet::correct_line_ends(\$contents);
1.79 www 1414: if (my $fh=Apache::File->new('>'.$file)) {
1415: print $fh $contents;
1416: $fh->close();
1.271 www 1417: return 1;
1.147 albertel 1418: } else {
1.482 bisitz 1419: &warning(&mt('Unable to save file [_1]','<tt>'.$file.'</tt>'));
1.271 www 1420: return 0;
1.79 www 1421: }
1422: }
1423:
1.151 albertel 1424: sub createnewhtml {
1.321 www 1425: my $title=&mt('Title of document goes here');
1426: my $body=&mt('Body of document goes here');
1427: my $filecontents=(<<SIMPLECONTENT);
1.78 www 1428: <html>
1429: <head>
1.321 www 1430: <title>$title</title>
1.78 www 1431: </head>
1432: <body bgcolor="#FFFFFF">
1.321 www 1433: $body
1.78 www 1434: </body>
1435: </html>
1436: SIMPLECONTENT
1.321 www 1437: return $filecontents;
1.151 albertel 1438: }
1439:
1.274 albertel 1440: sub createnewsty {
1441: my $filecontents=(<<SIMPLECONTENT);
1442: <definetag name="">
1443: <render>
1444: <web></web>
1445: <tex></tex>
1446: </render>
1447: </definetag>
1448: SIMPLECONTENT
1449: return $filecontents;
1450: }
1451:
1.493 raeburn 1452: sub createnewjs {
1453: my $filecontents=(<<SIMPLECONTENT);
1454: <script type="text/javascript" language="Javascript">
1455:
1456: </script>
1457: SIMPLECONTENT
1458: return $filecontents;
1459: }
1460:
1.472 www 1461: sub verify_html {
1462: my ($filecontents)=@_;
1.516 raeburn 1463: my ($is_html,$is_xml);
1464: if ($filecontents =~/(?:\<|\<\;)\?xml[^\<]*\?(?:\>|\>\;)/is) {
1465: $is_xml = 1;
1.518 raeburn 1466: } elsif ($filecontents =~/(?:\<|\<\;)html(?:\s+[^\<]+|\s*)(?:\>|\>\;)/is) {
1.516 raeburn 1467: $is_html = 1;
1468: }
1469: unless ($is_xml || $is_html) {
1470: return &mt('File does not have [_1] or [_2] starting tag','<html>','<?xml ?>');
1471: }
1472: if ($is_html) {
1473: if ($filecontents!~/(?:\<|\<\;)\/html(?:\>|\>\;)/is) {
1474: return &mt('File does not have [_1] ending tag','<html>');
1475: }
1476: if ($filecontents!~/(?:\<|\<\;)(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
1477: return &mt('File does not have [_1] or [_2] starting tag','<body>','<frameset>');
1478: }
1479: if ($filecontents!~/(?:\<|\<\;)\/(?:body|frameset)[^\<]*(?:\>|\>\;)/is) {
1480: return &mt('File does not have [_1] or [_2] ending tag','<body>','<frameset>');
1481: }
1.472 www 1482: }
1483: return '';
1484: }
1.147 albertel 1485:
1.478 www 1486: sub renderingoptions {
1487: my %langchoices=('' => '');
1488: foreach (&Apache::loncommon::languageids()) {
1489: if (&Apache::loncommon::supportedlanguagecode($_)) {
1490: $langchoices{&Apache::loncommon::supportedlanguagecode($_)}
1491: = &Apache::loncommon::plainlanguagedescription($_);
1492: }
1493: }
1.500 raeburn 1494: my $output;
1495: unless ($env{'form.forceedit'}) {
1.504 bisitz 1496: $output .=
1497: '<span class="LC_nobreak">'.
1.500 raeburn 1498: &mt('Language:').' '.
1.504 bisitz 1499: &Apache::loncommon::select_form(
1500: $env{'form.languages'},
1501: 'languages',
1.510 raeburn 1502: {&Apache::lonlocal::texthash(%langchoices)}).
1.504 bisitz 1503: '</span>';
1.500 raeburn 1504: }
1.504 bisitz 1505: $output .=
1506: ' <span class="LC_nobreak">'.
1.479 bisitz 1507: &mt('Math Rendering:').' '.
1.504 bisitz 1508: &Apache::loncommon::select_form(
1509: $env{'form.texengine'},
1510: 'texengine',
1.510 raeburn 1511: {&Apache::lonlocal::texthash
1.504 bisitz 1512: ('' => '',
1513: 'tth' => 'tth (TeX to HTML)',
1.526 dseaton 1514: 'MathJax' => 'MathJax',
1515: 'jsMath' => 'jsMath',
1.510 raeburn 1516: 'mimetex' => 'mimetex (Convert to Images)')}).
1.504 bisitz 1517: '</span>';
1.500 raeburn 1518: return $output;
1.478 www 1519: }
1520:
1.151 albertel 1521: sub inserteditinfo {
1.543 raeburn 1522: my ($filecontents,$filetype,$filename,$symb,$itemtitle,$folderpath,$uri,$action) = @_;
1.314 albertel 1523: $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
1.274 albertel 1524: my $xml_help = '';
1.321 www 1525: my $initialize='';
1.452 albertel 1526: my $textarea_id = 'filecont';
1.548 raeburn 1527: my ($dragmath_button,$deps_button,$context,$cnum,$cdom,$add_to_onload,
1528: $add_to_onresize,$init_dragmath);
1.456 albertel 1529: $initialize=&Apache::lonhtmlcommon::spellheader();
1.548 raeburn 1530: if ($filetype eq 'html') {
1531: if ($env{'request.course.id'}) {
1532: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1533: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1534: if ($uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E}) {
1535: $context = 'syllabus';
1536: }
1537: }
1538: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1539: my $lang = &Apache::lonhtmlcommon::htmlarea_lang();
1540: my %textarea_args = (
1541: fullpage => 'true',
1542: dragmath => 'math',
1543: );
1544: $initialize .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1545: if ($context eq 'syllabus') {
1546: $init_dragmath = "editmath_visibility('filecont','none')";
1547: }
1548: }
1.514 raeburn 1549: }
1550: $initialize .= (<<FULLPAGE);
1.321 www 1551: <script type="text/javascript">
1.514 raeburn 1552: // <![CDATA[
1.321 www 1553: function initDocument() {
1.463 albertel 1554: resize_textarea('$textarea_id','LC_aftertextarea');
1.548 raeburn 1555: $init_dragmath
1.321 www 1556: }
1.514 raeburn 1557: // ]]>
1.321 www 1558: </script>
1559: FULLPAGE
1.540 raeburn 1560: my $textareaclass;
1.514 raeburn 1561: if ($filetype eq 'html') {
1.548 raeburn 1562: if ($context eq 'syllabus') {
1563: $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n";
1564: $initialize .=
1565: &Apache::lonhtmlcommon::dependencycheck_js(undef,&mt('Syllabus'),
1566: $uri,undef,
1567: "/public/$cdom/$cnum/syllabus").
1568: "\n";
1569: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1570: $textareaclass = 'class="LC_richDefaultOn"';
1.539 raeburn 1571: }
1.548 raeburn 1572: } elsif ($symb || $folderpath) {
1573: $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n";
1574: $initialize .=
1575: &Apache::lonhtmlcommon::dependencycheck_js($symb,$itemtitle,
1576: undef,$folderpath,$uri)."\n";
1.530 raeburn 1577: }
1.514 raeburn 1578: $dragmath_button = '<span id="math_filecont">'.&Apache::lonhtmlcommon::dragmath_button('filecont',1).'</span>';
1579: $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup');
1.512 raeburn 1580: }
1.456 albertel 1581: $add_to_onload = 'initDocument();';
1582: $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');";
1583:
1584: if ($filetype eq 'html') {
1.547 raeburn 1585: my $not_author;
1586: if ($uri =~ m{^/uploaded/}) {
1587: $not_author = 1;
1588: }
1589: $xml_help=&Apache::loncommon::helpLatexCheatsheet(undef,undef,$not_author);
1.274 albertel 1590: }
1.452 albertel 1591:
1.254 albertel 1592: my $titledisplay=&display_title();
1.426 banghart 1593: my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
1594: 'vi' => 'Save and View',
1.427 banghart 1595: 'dv' => 'Discard Edits and View',
1.428 banghart 1596: 'un' => 'undo',
1.280 www 1597: 'ed' => 'Edit');
1.512 raeburn 1598: my $spelllink = &Apache::lonhtmlcommon::spelllink('xmledit','filecont');
1.451 albertel 1599: my $textarea_events = &Apache::edit::element_change_detection();
1600: my $form_events = &Apache::edit::form_change_detection();
1.491 raeburn 1601: my $htmlerror;
1602: if ($filetype eq 'html') {
1603: $htmlerror=&verify_html($filecontents);
1604: if ($htmlerror) {
1605: $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
1606: }
1.501 raeburn 1607: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.540 raeburn 1608: unless ($textareaclass) {
1609: $textareaclass = 'class="LC_richDefaultOff"';
1610: }
1.501 raeburn 1611: }
1.472 www 1612: }
1.547 raeburn 1613: my $undo;
1614: unless ($uri =~ m{^/uploaded/}) {
1615: $undo = '<input type="submit" name="Undo" accesskey="u" value="'.$lt{'un'}.'" />'."\n";
1616: }
1.78 www 1617: my $editfooter=(<<ENDFOOTER);
1.321 www 1618: $initialize
1.78 www 1619: <a name="editsection" />
1.543 raeburn 1620: <form $form_events method="post" name="xmledit" action="$action">
1.470 albertel 1621: <div class="LC_edit_problem_editxml_header">
1622: <table class="LC_edit_problem_header_title"><tr><td>
1623: $filename
1624: </td><td align="right">
1625: $xml_help
1626: </td></tr>
1627: </table>
1628: <div class="LC_edit_problem_discards">
1629: <input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
1.547 raeburn 1630: $undo $htmlerror $deps_button $dragmath_button
1.470 albertel 1631: </div>
1632: <div class="LC_edit_problem_saves">
1633: <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
1634: <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
1635: </div>
1636: </div>
1.513 raeburn 1637: <textarea $textarea_events style="width:100%" cols="80" rows="44" name="filecont" id="filecont" $textareaclass>$filecontents</textarea><br />$spelllink
1.470 albertel 1638: <div id="LC_aftertextarea">
1639: <br />
1640: $titledisplay
1641: </div>
1.78 www 1642: </form>
1643: ENDFOOTER
1.452 albertel 1644: return ($editfooter,$add_to_onload,$add_to_onresize);;
1.78 www 1645: }
1646:
1.152 albertel 1647: sub get_target {
1.372 albertel 1648: my $viewgrades=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1649: if ( $env{'request.state'} eq 'published') {
1650: if ( defined($env{'form.grade_target'})
1.152 albertel 1651: && ($viewgrades == 'F' )) {
1.372 albertel 1652: return ($env{'form.grade_target'});
1653: } elsif (defined($env{'form.grade_target'})) {
1654: if (($env{'form.grade_target'} eq 'web') ||
1655: ($env{'form.grade_target'} eq 'tex') ) {
1656: return $env{'form.grade_target'}
1.153 albertel 1657: } else {
1658: return 'web';
1659: }
1.152 albertel 1660: } else {
1661: return 'web';
1662: }
1.372 albertel 1663: } elsif ($env{'request.state'} eq 'construct') {
1664: if ( defined($env{'form.grade_target'})) {
1665: return ($env{'form.grade_target'});
1.152 albertel 1666: } else {
1667: return 'web';
1668: }
1669: } else {
1670: return 'web';
1671: }
1672: }
1673:
1.24 sakharuk 1674: sub handler {
1.255 sakharuk 1675: my $request=shift;
1.493 raeburn 1676:
1.255 sakharuk 1677: my $target=&get_target();
1.372 albertel 1678: $Apache::lonxml::debug=$env{'user.debug'};
1.255 sakharuk 1679:
1.364 albertel 1680: &Apache::loncommon::content_type($request,'text/html');
1.255 sakharuk 1681: &Apache::loncommon::no_cache($request);
1.372 albertel 1682: if ($env{'request.state'} eq 'published') {
1.363 albertel 1683: $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
1684: 'lastrevisiondate'));
1685: }
1.499 raeburn 1686: # Embedded Flash movies from Camtasia served from https will not display in IE
1687: # if XML config file has expired from cache.
1688: if ($ENV{'SERVER_PORT'} == 443) {
1689: if ($request->uri =~ /\.xml$/) {
1690: my ($httpbrowser,$clientbrowser) =
1691: &Apache::loncommon::decode_user_agent($request);
1692: if ($clientbrowser =~ /^explorer$/i) {
1693: delete $request->headers_out->{'Cache-control'};
1694: delete $request->headers_out->{'Pragma'};
1695: my $expiration = time + 60;
1696: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime($expiration));
1697: $request->headers_out->set("Expires" => $date);
1698: }
1699: }
1700: }
1.255 sakharuk 1701: $request->send_http_header;
1702:
1703: return OK if $request->header_only;
1.68 www 1704:
1705:
1.255 sakharuk 1706: my $file=&Apache::lonnet::filelocation("",$request->uri);
1.502 raeburn 1707: my ($filetype,$breadcrumbtext);
1708: if ($file =~ /\.(sty|css|js|txt|tex)$/) {
1.493 raeburn 1709: $filetype=$1;
1.274 albertel 1710: } else {
1711: $filetype='html';
1.537 raeburn 1712: }
1713: unless ($env{'request.uri'}) {
1.536 raeburn 1714: $env{'request.uri'}=$request->uri;
1.537 raeburn 1715: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1716: ['todocs']);
1.274 albertel 1717: }
1.540 raeburn 1718: my ($cdom,$cnum);
1719: if ($env{'request.course.id'}) {
1720: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1721: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1722: if ($filetype eq 'html') {
1723: if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E.+$}) {
1724: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1725: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1726: ['editmode']);
1727: }
1728: }
1729: }
1730: }
1.502 raeburn 1731: if ($filetype eq 'sty') {
1732: $breadcrumbtext = 'Style File Editor';
1733: } elsif ($filetype eq 'js') {
1734: $breadcrumbtext = 'Javascript Editor';
1735: } elsif ($filetype eq 'css') {
1736: $breadcrumbtext = 'CSS Editor';
1737: } elsif ($filetype eq 'txt') {
1738: $breadcrumbtext = 'Text Editor';
1739: } elsif ($filetype eq 'tex') {
1740: $breadcrumbtext = 'TeX Editor';
1741: } else {
1742: $breadcrumbtext = 'HTML Editor';
1743: }
1.493 raeburn 1744:
1.78 www 1745: #
1746: # Edit action? Save file.
1747: #
1.428 banghart 1748: if (!($env{'request.state'} eq 'published')) {
1749: if ($env{'form.savethisfile'} || $env{'form.viewmode'} || $env{'form.Undo'}) {
1.429 albertel 1750: my $html_file=&Apache::lonnet::getfile($file);
1751: my $error = &Apache::lonhomework::handle_save_or_undo($request, \$html_file, \$env{'form.filecont'});
1.472 www 1752: if ($env{'form.savethisfile'}) {
1753: $env{'form.editmode'}='Edit'; #force edit mode
1754: }
1.255 sakharuk 1755: }
1756: }
1.549 raeburn 1757: my $inhibit_menu;
1.255 sakharuk 1758: my %mystyle;
1759: my $result = '';
1760: my $filecontents=&Apache::lonnet::getfile($file);
1761: if ($filecontents eq -1) {
1.402 albertel 1762: my $start_page=&Apache::loncommon::start_page('File Error');
1.412 albertel 1763: my $end_page=&Apache::loncommon::end_page();
1.495 bisitz 1764: my $errormsg='<p class="LC_error">'
1765: .&mt('File not found: [_1]'
1766: ,'<span class="LC_filename">'.$file.'</span>')
1767: .'</p>';
1.255 sakharuk 1768: $result=(<<ENDNOTFOUND);
1.402 albertel 1769: $start_page
1.495 bisitz 1770: $errormsg
1.402 albertel 1771: $end_page
1.78 www 1772: ENDNOTFOUND
1.343 albertel 1773: $filecontents='';
1.372 albertel 1774: if ($env{'request.state'} ne 'published') {
1.274 albertel 1775: if ($filetype eq 'sty') {
1776: $filecontents=&createnewsty();
1.493 raeburn 1777: } elsif ($filetype eq 'js') {
1778: $filecontents=&createnewjs();
1.502 raeburn 1779: } elsif ($filetype ne 'css' && $filetype ne 'txt' && $filetype ne 'tex') {
1.274 albertel 1780: $filecontents=&createnewhtml();
1781: }
1.372 albertel 1782: $env{'form.editmode'}='Edit'; #force edit mode
1.255 sakharuk 1783: }
1784: } else {
1.372 albertel 1785: unless ($env{'request.state'} eq 'published') {
1.343 albertel 1786: if ($filecontents=~/BEGIN LON-CAPA Internal/) {
1.381 www 1787: &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 1788: }
1.264 www 1789: #
1790: # we are in construction space, see if edit mode forced
1.385 albertel 1791: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1792: ['editmode']);
1.255 sakharuk 1793: }
1.427 banghart 1794: if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
1.493 raeburn 1795: if ($filetype eq 'html' || $filetype eq 'sty') {
1796: &Apache::structuretags::reset_problem_globals();
1797: $result = &Apache::lonxml::xmlparse($request,$target,
1798: $filecontents,'',%mystyle);
1.455 albertel 1799: # .html files may contain <problem> or <Task> need to clean
1800: # up if it did
1.493 raeburn 1801: &Apache::structuretags::reset_problem_globals();
1802: &Apache::lonhomework::finished_parsing();
1.502 raeburn 1803: } elsif ($filetype eq 'tex') {
1.503 raeburn 1804: $result = &Apache::lontexconvert::converted(\$filecontents,
1805: $env{'form.texengine'});
1806: if ($env{'form.return_only_error_and_warning_counts'}) {
1807: $result = "$errorcount:$warningcount";
1808: }
1.493 raeburn 1809: } else {
1810: $result = $filecontents;
1811: }
1.385 albertel 1812: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1813: ['rawmode']);
1.395 albertel 1814: if ($env{'form.rawmode'}) { $result = $filecontents; }
1.549 raeburn 1815: if (($env{'request.state'} eq 'construct') &&
1816: (($filetype eq 'css') || ($filetype eq 'js')) && ($ENV{'HTTP_REFERER'})) {
1817: if ($ENV{'HTTP_REFERER'} =~ m{^https?\://[^\/]+/priv/$LONCAPA::match_domain/$LONCAPA::match_username/[^\?]+\.(x?html?|swf)(|\?)[^\?]*$}) {
1818: $inhibit_menu = 1;
1819: }
1820: }
1.503 raeburn 1821: if (($filetype ne 'html') &&
1.549 raeburn 1822: (!$env{'form.return_only_error_and_warning_counts'}) &&
1823: (!$inhibit_menu)) {
1.502 raeburn 1824: my $nochgview = 1;
1.495 bisitz 1825: my $controls = '';
1826: if ($env{'request.state'} eq 'construct') {
1827: $controls = &Apache::loncommon::head_subbox(
1828: &Apache::loncommon::CSTR_pageheader()
1829: .&Apache::londefdef::edit_controls($nochgview));
1830: }
1.502 raeburn 1831: if ($filetype ne 'sty' && $filetype ne 'tex') {
1.493 raeburn 1832: $result =~ s/</</g;
1833: $result =~ s/>/>/g;
1834: $result = '<table class="LC_sty_begin">'.
1835: '<tr><td><b><pre>'.$result.
1836: '</pre></b></td></tr></table>';
1837: }
1.506 droeschl 1838: my $brcrum;
1839: if ($env{'request.state'} eq 'construct') {
1.523 raeburn 1840: $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1.541 raeburn 1841: 'text' => 'Authoring Space'},
1.506 droeschl 1842: {'href' => '',
1843: 'text' => $breadcrumbtext}];
1.493 raeburn 1844: } else {
1.506 droeschl 1845: $brcrum = ''; # FIXME: Where are we?
1.493 raeburn 1846: }
1.506 droeschl 1847: my %options = ('bread_crumbs' => $brcrum,
1848: 'bgcolor' => '#FFFFFF');
1849: $result =
1850: &Apache::loncommon::start_page(undef,undef,\%options)
1851: .$controls
1852: .$result
1853: .&Apache::loncommon::end_page();
1.493 raeburn 1854: }
1.495 bisitz 1855: }
1.147 albertel 1856: }
1.456 albertel 1857:
1.78 www 1858: #
1859: # Edit action? Insert editing commands
1860: #
1.549 raeburn 1861: unless (($env{'request.state'} eq 'published') || ($inhibit_menu)) {
1.427 banghart 1862: if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
1.450 albertel 1863: {
1.543 raeburn 1864: my ($displayfile,$url,$symb,$itemtitle,$action);
1.530 raeburn 1865: $displayfile=$request->uri;
1866: if ($request->uri =~ m{^/uploaded/}) {
1.534 raeburn 1867: if ($env{'request.course.id'}) {
1.539 raeburn 1868: if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/supplemental/\E}) {
1.534 raeburn 1869: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1870: ['folderpath','title']);
1.539 raeburn 1871: } elsif ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E(.+)$}) {
1.540 raeburn 1872: my $filename = $1;
1873: if ($1 eq 'loncapa.html') {
1874: $displayfile = &mt('Syllabus (minimal template)');
1.543 raeburn 1875: $action = $request->uri.'?forceedit=1';
1.540 raeburn 1876: } else {
1877: $displayfile = &mt('Syllabus file: [_1]',$1);
1878: }
1.539 raeburn 1879: $itemtitle = &mt('Syllabus');
1.534 raeburn 1880: }
1881: }
1.539 raeburn 1882: unless ($itemtitle) {
1883: ($symb,$itemtitle,$displayfile) =
1884: &get_courseupload_hierarchy($request->uri,
1885: $env{'form.folderpath'},
1886: $env{'form.title'});
1887: }
1.529 raeburn 1888: } else {
1889: $displayfile=~s/^\/[^\/]*//;
1890: }
1.470 albertel 1891:
1.452 albertel 1892: my ($edit_info, $add_to_onload, $add_to_onresize)=
1.534 raeburn 1893: &inserteditinfo($filecontents,$filetype,$displayfile,$symb,
1.543 raeburn 1894: $itemtitle,$env{'form.folderpath'},$request->uri,$action);
1.450 albertel 1895:
1896: my %options =
1897: ('add_entries' =>
1.495 bisitz 1898: {'onresize' => $add_to_onresize,
1899: 'onload' => $add_to_onload, });
1.500 raeburn 1900: my $header;
1901: if ($env{'request.state'} eq 'construct') {
1902: $options{'bread_crumbs'} = [{
1.523 raeburn 1903: 'href' => &Apache::loncommon::authorspace($request->uri),
1.541 raeburn 1904: 'text' => 'Authoring Space'},
1.500 raeburn 1905: {'href' => '',
1.502 raeburn 1906: 'text' => $breadcrumbtext}];
1.500 raeburn 1907: $header = &Apache::loncommon::head_subbox(
1908: &Apache::loncommon::CSTR_pageheader());
1909: }
1.452 albertel 1910: my $js =
1911: &Apache::edit::js_change_detection().
1912: &Apache::loncommon::resize_textarea_js();
1.451 albertel 1913: my $start_page = &Apache::loncommon::start_page(undef,$js,
1.402 albertel 1914: \%options);
1.495 bisitz 1915: $result = $start_page
1.500 raeburn 1916: .$header
1.495 bisitz 1917: .&Apache::lonxml::message_location()
1918: .$edit_info
1919: .&Apache::loncommon::end_page();
1.493 raeburn 1920: }
1.147 albertel 1921: }
1.402 albertel 1922: if ($filetype eq 'html') { &writeallows($request->uri); }
1.501 raeburn 1923:
1.309 albertel 1924: &Apache::lonxml::add_messages(\$result);
1.255 sakharuk 1925: $request->print($result);
1926:
1927: return OK;
1.253 albertel 1928: }
1929:
1930: sub display_title {
1931: my $result;
1.372 albertel 1932: if ($env{'request.state'} eq 'construct') {
1.253 albertel 1933: my $title=&Apache::lonnet::gettitle();
1934: if (!defined($title) || $title eq '') {
1.372 albertel 1935: $title = $env{'request.filename'};
1.253 albertel 1936: $title = substr($title, rindex($title, '/') + 1);
1937: }
1.476 bisitz 1938: $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA "
1.541 raeburn 1939: .&mt('Authoring Space')."';</script>";
1.253 albertel 1940: }
1941: return $result;
1.24 sakharuk 1942: }
1.147 albertel 1943:
1.530 raeburn 1944: sub get_courseupload_hierarchy {
1.534 raeburn 1945: my ($url,$folderpath,$title) = @_;
1.530 raeburn 1946: my ($symb,$itemtitle,$displaypath);
1947: if ($env{'request.course.id'}) {
1.534 raeburn 1948: if ($folderpath =~ /^supplemental/) {
1949: my @folders = split(/\&/,$folderpath);
1950: my @pathitems;
1951: while (@folders) {
1952: my $folder=shift(@folders);
1953: my $foldername=shift(@folders);
1.538 raeburn 1954: $foldername =~ s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//;
1.534 raeburn 1955: push(@pathitems,&unescape($foldername));
1956: }
1957: if ($title) {
1958: push(@pathitems,&unescape($title));
1959: }
1960: $displaypath = join(' » ',@pathitems);
1961: } else {
1962: $symb = &Apache::lonnet::symbread($url);
1963: my ($map,$id,$res)=&Apache::lonnet::decode_symb($symb);
1964: my $navmap=Apache::lonnavmaps::navmap->new;
1965: if (ref($navmap)) {
1966: my $res = $navmap->getBySymb($symb);
1967: if (ref($res)) {
1968: my @pathitems =
1969: &Apache::loncommon::get_folder_hierarchy($navmap,$map,1);
1970: $itemtitle = $res->compTitle();
1971: push(@pathitems,$itemtitle);
1972: $displaypath = join(' » ',@pathitems);
1973: }
1.530 raeburn 1974: }
1975: }
1976: }
1977: return ($symb,$itemtitle,$displaypath);
1978: }
1979:
1.22 albertel 1980: sub debug {
1.298 albertel 1981: if ($Apache::lonxml::debug eq "1") {
1982: $|=1;
1.300 albertel 1983: my $request=$Apache::lonxml::request;
1.388 albertel 1984: if (!$request) {
1985: eval { $request=Apache->request; };
1986: }
1987: if (!$request) {
1988: eval { $request=Apache2::RequestUtil->request; };
1989: }
1.314 albertel 1990: $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
1.346 albertel 1991: #&Apache::lonnet::logthis($_[0]);
1.298 albertel 1992: }
1.22 albertel 1993: }
1.49 albertel 1994:
1.348 albertel 1995: sub show_error_warn_msg {
1.522 raeburn 1996: if (($env{'request.filename'} eq
1997: $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/lib/templates/simpleproblem.problem') &&
1998: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.351 albertel 1999: return 1;
2000: }
1.348 albertel 2001: return (($Apache::lonxml::debug eq 1) ||
1.372 albertel 2002: ($env{'request.state'} eq 'construct') ||
1.348 albertel 2003: ($Apache::lonhomework::browse eq 'F'
2004: &&
1.372 albertel 2005: $env{'form.show_errors'} eq 'on'));
1.348 albertel 2006: }
2007:
1.22 albertel 2008: sub error {
1.454 albertel 2009: my @errors = @_;
2010:
1.336 albertel 2011: $errorcount++;
1.454 albertel 2012:
1.490 www 2013: $Apache::lonxml::internal_error=1;
2014:
1.454 albertel 2015: if (defined($Apache::inputtags::part)) {
2016: if ( @Apache::inputtags::response ) {
2017: push(@errors,
2018: &mt("This error occurred while processing response [_1] in part [_2]",
2019: $Apache::inputtags::response[-1],
2020: $Apache::inputtags::part));
2021: } else {
2022: push(@errors,
2023: &mt("This error occurred while processing part [_1]",
2024: $Apache::inputtags::part));
2025: }
2026: }
2027:
1.348 albertel 2028: if ( &show_error_warn_msg() ) {
1.336 albertel 2029: # If printing in construction space, put the error inside <pre></pre>
2030: push(@Apache::lonxml::error_messages,
1.484 bisitz 2031: $Apache::lonxml::warnings_error_header
2032: .'<div class="LC_error">'
2033: .'<b>'.&mt('ERROR:').' </b>'.join("<br />\n",@errors)
2034: ."</div>\n");
1.336 albertel 2035: $Apache::lonxml::warnings_error_header='';
2036: } else {
2037: my $errormsg;
2038: my ($symb)=&Apache::lonnet::symbread();
2039: if ( !$symb ) {
2040: #public or browsers
1.486 bisitz 2041: $errormsg=&mt("An error occurred while processing this resource. The author has been notified.");
1.403 albertel 2042: }
1.413 albertel 2043: my $host=$Apache::lonnet::perlvar{'lonHostID'};
1.476 bisitz 2044: push(@errors,
2045: &mt("The error occurred on host [_1]",
2046: "<tt>$host</tt>"));
1.454 albertel 2047:
2048: my $msg = join('<br />', @errors);
2049:
1.336 albertel 2050: #notify author
1.403 albertel 2051: &Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
1.336 albertel 2052: #notify course
1.372 albertel 2053: if ( $symb && $env{'request.course.id'} ) {
1.380 www 2054: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2055: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.440 albertel 2056: my (undef,%users)=&Apache::lonmsg::decide_receiver(undef,0,1,1,1);
1.372 albertel 2057: my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
1.435 raeburn 2058: my $baseurl = &Apache::lonnet::clutter($declutter);
1.336 albertel 2059: my @userlist;
1.551 raeburn 2060: foreach (keys(%users)) {
1.336 albertel 2061: my ($user,$domain) = split(/:/, $_);
1.531 bisitz 2062: push(@userlist,"$user:$domain");
1.380 www 2063: my $key=$declutter.'_'.$user.'_'.$domain;
2064: my %lastnotified=&Apache::lonnet::get('nohist_xmlerrornotifications',
2065: [$key],
2066: $cdom,$cnum);
2067: my $now=time;
2068: if ($now-$lastnotified{$key}>86400) {
1.434 raeburn 2069: my $title = &Apache::lonnet::gettitle($symb);
2070: my $sentmessage;
1.380 www 2071: &Apache::lonmsg::user_normal_msg($user,$domain,
1.435 raeburn 2072: "Error [$title]",$msg,'',$baseurl,'','',
1.434 raeburn 2073: \$sentmessage,$symb,$title,1);
1.380 www 2074: &Apache::lonnet::put('nohist_xmlerrornotifications',
2075: {$key => $now},
2076: $cdom,$cnum);
2077: }
1.336 albertel 2078: }
1.372 albertel 2079: if ($env{'request.role.adv'}) {
1.486 bisitz 2080: $errormsg=&mt("An error occurred while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
1.336 albertel 2081: } else {
1.486 bisitz 2082: $errormsg=&mt("An error occurred while processing this resource. The instructor has been notified.");
1.336 albertel 2083: }
2084: }
1.531 bisitz 2085: push(@Apache::lonxml::error_messages,"<span class=\"LC_warning\">$errormsg</span><br />");
1.52 albertel 2086: }
1.22 albertel 2087: }
1.49 albertel 2088:
1.22 albertel 2089: sub warning {
1.295 albertel 2090: $warningcount++;
1.261 albertel 2091:
1.372 albertel 2092: if ($env{'form.grade_target'} ne 'tex') {
1.348 albertel 2093: if ( &show_error_warn_msg() ) {
1.309 albertel 2094: push(@Apache::lonxml::warning_messages,
1.484 bisitz 2095: $Apache::lonxml::warnings_error_header
2096: .'<div class="LC_warning">'
2097: .&mt('[_1]W[_2]ARNING','<b>','</b>')."<b>:</b> ".join('<br />',@_)
2098: ."</div>\n"
1.482 bisitz 2099: );
1.295 albertel 2100: $Apache::lonxml::warnings_error_header='';
2101: }
2102: }
1.309 albertel 2103: }
2104:
2105: sub info {
1.372 albertel 2106: if ($env{'form.grade_target'} ne 'tex'
2107: && $env{'request.state'} eq 'construct') {
1.309 albertel 2108: push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
2109: }
2110: }
2111:
2112: sub message_location {
2113: return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
2114: }
2115:
2116: sub add_messages {
2117: my ($msg)=@_;
2118: my $result=join(' ',
2119: @Apache::lonxml::info_messages,
2120: @Apache::lonxml::error_messages,
2121: @Apache::lonxml::warning_messages);
2122: undef(@Apache::lonxml::info_messages);
2123: undef(@Apache::lonxml::error_messages);
2124: undef(@Apache::lonxml::warning_messages);
2125: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
2126: $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
1.83 albertel 2127: }
2128:
2129: sub get_param {
1.535 foxr 2130: my ($param,$parstack,$safeeval,$context,$case_insensitive, $noelide) = @_;
2131:
1.213 albertel 2132: if ( ! $context ) { $context = -1; }
2133: my $args ='';
2134: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 2135: if ( ! $Apache::lonxml::usestyle ) {
2136: $args=$Apache::lonxml::style_values.$args;
2137: }
1.535 foxr 2138:
2139:
2140: if ($noelide) {
2141: # $args =~ s/\\'/'/g;
2142: $args =~ s/'\$/'\\\$/g;
2143: }
2144:
1.213 albertel 2145: if ( ! $args ) { return undef; }
2146: if ( $case_insensitive ) {
1.417 albertel 2147: if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
1.535 foxr 2148:
1.213 albertel 2149: return &Apache::run::run("{$args;".'return $'.$param.'}',
2150: $safeeval); #'
2151: } else {
2152: return undef;
2153: }
2154: } else {
1.417 albertel 2155: if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
1.535 foxr 2156:
1.213 albertel 2157: return &Apache::run::run("{$args;".'return $'.$param.'}',
2158: $safeeval); #'
2159: } else {
2160: return undef;
2161: }
2162: }
1.22 albertel 2163: }
2164:
1.132 albertel 2165: sub get_param_var {
1.213 albertel 2166: my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
1.132 albertel 2167: if ( ! $context ) { $context = -1; }
2168: my $args ='';
2169: if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
1.297 sakharuk 2170: if ( ! $Apache::lonxml::usestyle ) {
2171: $args=$Apache::lonxml::style_values.$args;
2172: }
1.230 albertel 2173: &Apache::lonxml::debug("Args are $args param is $param");
1.213 albertel 2174: if ($case_insensitive) {
1.419 albertel 2175: if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
1.213 albertel 2176: return undef;
2177: }
1.419 albertel 2178: } elsif ( $args !~ /my .*\$\Q$param\E[,\)]/ ) { return undef; }
1.132 albertel 2179: my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
1.230 albertel 2180: &Apache::lonxml::debug("first run is $value");
1.341 albertel 2181: if ($value =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
1.230 albertel 2182: &Apache::lonxml::debug("doing second");
2183: my @result=&Apache::run::run("return $value",$safeeval,1);
2184: if (!defined($result[0])) {
2185: return $value
2186: } else {
2187: if (wantarray) { return @result; } else { return $result[0]; }
2188: }
1.132 albertel 2189: } else {
2190: return $value;
2191: }
2192: }
2193:
1.438 albertel 2194: sub register_insert_xml {
2195: my $parser = HTML::LCParser->new($Apache::lonnet::perlvar{'lonTabDir'}
2196: .'/insertlist.xml');
2197: my ($tagnum,$in_help)=(0,0);
1.442 albertel 2198: my @alltags;
1.438 albertel 2199: my $tag;
2200: while (my $token = $parser->get_token()) {
2201: if ($token->[0] eq 'S') {
2202: my $key;
1.525 raeburn 2203: if ($token->[1] eq 'tag') {
1.438 albertel 2204: $tag = $token->[2]{'name'};
1.525 raeburn 2205: if (defined($tag)) {
2206: $insertlist{$tagnum.'.tag'} = $tag;
2207: $insertlist{$tag.'.num'} = $tagnum;
2208: push(@alltags,$tag);
2209: }
1.438 albertel 2210: } elsif ($in_help && $token->[1] eq 'file') {
2211: $key = $tag.'.helpfile';
2212: } elsif ($in_help && $token->[1] eq 'description') {
2213: $key = $tag.'.helpdesc';
2214: } elsif ($token->[1] eq 'description' ||
2215: $token->[1] eq 'color' ||
2216: $token->[1] eq 'show' ) {
2217: $key = $tag.'.'.$token->[1];
2218: } elsif ($token->[1] eq 'insert_sub') {
2219: $key = $tag.'.function';
2220: } elsif ($token->[1] eq 'help') {
2221: $in_help=1;
2222: } elsif ($token->[1] eq 'allow') {
1.442 albertel 2223: $key = $tag.'.allow';
1.438 albertel 2224: }
2225: if (defined($key)) {
2226: $insertlist{$key} = $parser->get_text();
2227: $insertlist{$key} =~ s/(^\s*|\s*$ )//gx;
2228: }
2229: } elsif ($token->[0] eq 'E') {
2230: if ($token->[1] eq 'tag') {
2231: undef($tag);
2232: $tagnum++;
2233: } elsif ($token->[1] eq 'help') {
2234: undef($in_help);
2235: }
2236: }
2237: }
1.442 albertel 2238:
2239: # parse the allows and ignore tags set to <show>no</show>
2240: foreach my $tag (@alltags) {
1.519 raeburn 2241: next if (!exists($insertlist{$tag.'.allow'}));
2242: my $allow = $insertlist{$tag.'.allow'};
1.442 albertel 2243: foreach my $element (split(',',$allow)) {
2244: $element =~ s/(^\s*|\s*$ )//gx;
1.519 raeburn 2245: if (!exists($insertlist{$element.'.show'})
2246: || $insertlist{$element.'.show'} ne 'no') {
1.442 albertel 2247: push(@{ $insertlist{$tag.'.which'} },$element);
2248: }
2249: }
2250: }
1.438 albertel 2251: }
2252:
2253: sub register_insert {
2254: return ®ister_insert_xml(@_);
2255: # &dump_insertlist('2');
2256: }
2257:
2258: sub dump_insertlist {
2259: my ($ext) = @_;
2260: open(XML,">/tmp/insertlist.xml.$ext");
2261: print XML ("<insertlist>");
2262: my $i=0;
2263:
2264: while (exists($insertlist{"$i.tag"})) {
2265: my $tag = $insertlist{"$i.tag"};
2266: print XML ("
2267: \t<tag name=\"$tag\">");
2268: if (defined($insertlist{"$tag.description"})) {
2269: print XML ("
2270: \t\t<description>".$insertlist{"$tag.description"}."</description>");
2271: }
2272: if (defined($insertlist{"$tag.color"})) {
2273: print XML ("
2274: \t\t<color>".$insertlist{"$tag.color"}."</color>");
2275: }
2276: if (defined($insertlist{"$tag.function"})) {
2277: print XML ("
2278: \t\t<insert_sub>".$insertlist{"$tag.function"}."</insert_sub>");
2279: }
2280: if (defined($insertlist{"$tag.show"})
2281: && $insertlist{"$tag.show"} ne 'yes') {
2282: print XML ("
2283: \t\t<show>".$insertlist{"$tag.show"}."</show>");
2284: }
2285: if (defined($insertlist{"$tag.helpfile"})) {
2286: print XML ("
2287: \t\t<help>
2288: \t\t\t<file>".$insertlist{"$tag.helpfile"}."</file>");
2289: if ($insertlist{"$tag.helpdesc"} ne '') {
2290: print XML ("
2291: \t\t\t<description>".$insertlist{"$tag.helpdesc"}."</description>");
2292: }
2293: print XML ("
2294: \t\t</help>");
2295: }
2296: if (defined($insertlist{"$tag.which"})) {
2297: print XML ("
2298: \t\t<allow>".join(',',sort(@{ $insertlist{"$tag.which"} }))."</allow>");
2299: }
2300: print XML ("
2301: \t</tag>");
2302: $i++;
2303: }
2304: print XML ("\n</insertlist>\n");
2305: close(XML);
2306: }
2307:
1.98 albertel 2308: sub description {
1.437 albertel 2309: my ($token)=@_;
2310: my $tag = &get_tag($token);
2311: return $insertlist{$tag.'.description'};
1.268 bowersj2 2312: }
2313:
2314: # Returns a list containing the help file, and the description
2315: sub helpinfo {
1.437 albertel 2316: my ($token)=@_;
2317: my $tag = &get_tag($token);
1.545 bisitz 2318: return ($insertlist{$tag.'.helpfile'}, &mt($insertlist{$tag.'.helpdesc'}));
1.437 albertel 2319: }
2320:
2321: sub get_tag {
2322: my ($token)=@_;
2323: my $tagnum;
2324: my $tag=$token->[1];
2325: foreach my $namespace (reverse(@Apache::lonxml::namespace)) {
2326: my $testtag = $namespace.'::'.$tag;
2327: $tagnum = $insertlist{"$testtag.num"};
2328: last if (defined($tagnum));
2329: }
2330: if (!defined($tagnum)) {
2331: $tagnum = $Apache::lonxml::insertlist{"$tag.num"};
2332: }
2333: return $insertlist{"$tagnum.tag"};
1.98 albertel 2334: }
1.123 albertel 2335:
1.485 onken 2336: ############################################################
2337: # PDF-FORM-METHODS
2338:
2339: =pod
2340:
1.508 onken 2341: =item &print_pdf_radiobutton(fieldname, value)
1.485 onken 2342:
1.508 onken 2343: Returns a latexline to generate a PDF-Form-Radiobutton.
2344: Note: Radiobuttons with equal names are automaticly grouped
2345: in a selection-group.
1.485 onken 2346:
1.508 onken 2347: $fieldname: PDF internalname of the radiobutton(group)
2348: $value: Value of radiobutton
1.485 onken 2349:
2350: =cut
2351: sub print_pdf_radiobutton {
1.508 onken 2352: my ($fieldname, $value) = @_;
2353: return '\radioButton[\symbolchoice{circle}]{'
2354: .$fieldname.'}{10bp}{10bp}{'.$value.'}';
1.485 onken 2355: }
2356:
2357:
2358: =pod
2359:
2360: =item &print_pdf_start_combobox(fieldname)
2361:
2362: Starts a latexline to generate a PDF-Form-Combobox with text.
2363:
2364: $fieldname: PDF internal name of the Combobox
2365:
2366: =cut
2367: sub print_pdf_start_combobox {
2368: my $result;
2369: my ($fieldName) = @_;
2370: $result .= '\begin{tabularx}{\textwidth}{p{2.5cm}X}'."\n";
2371: $result .= '\comboBox[]{'.$fieldName.'}{2.3cm}{14bp}{'; #
2372:
2373: return $result;
2374: }
2375:
2376:
2377: =pod
2378:
2379: =item &print_pdf_add_combobox_option(options)
2380:
2381: Generates a latexline to add Options to a PDF-Form-ComboBox.
2382:
2383: $option: PDF internal name of the Combobox-Option
2384:
2385: =cut
2386: sub print_pdf_add_combobox_option {
2387:
2388: my $result;
2389: my ($option) = @_;
2390:
2391: $result .= '('.$option.')';
2392:
2393: return $result;
2394: }
2395:
2396:
2397: =pod
2398:
2399: =item &print_pdf_end_combobox(text) {
2400:
2401: Returns latexcode to end a PDF-Form-Combobox with text.
2402:
2403: =cut
2404: sub print_pdf_end_combobox {
2405: my $result;
2406: my ($text) = @_;
2407:
2408: $result .= '}&'.$text."\\\\\n";
2409: $result .= '\end{tabularx}' . "\n";
2410: $result .= '\hspace{2mm}' . "\n";
2411: return $result;
2412: }
2413:
2414:
2415: =pod
2416:
2417: =item &print_pdf_hiddenField(fieldname, user, domain)
2418:
2419: Returns a latexline to generate a PDF-Form-hiddenField with userdata.
2420:
2421: $fieldname label for hiddentextfield
2422: $user: name of user
2423: $domain: domain of user
2424:
2425: =cut
2426: sub print_pdf_hiddenfield {
2427: my $result;
2428: my ($fieldname, $user, $domain) = @_;
2429:
2430: $result .= '\textField [\F{\FHidden}\F{-\FPrint}\V{'.$domain.'&'.$user.'}]{'.$fieldname.'}{0in}{0in}'."\n";
2431:
2432: return $result;
2433: }
2434:
1.1 sakharuk 2435: 1;
2436: __END__
1.68 www 2437:
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