File:
[LON-CAPA] /
loncom /
xml /
scripttag.pm
Revision
1.81:
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Wed Nov 6 23:05:02 2002 UTC (21 years, 8 months ago) by
albertel
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MAIN
CVS tags:
HEAD
- Fixes most of BUG#793
- added new global var that controls wheter syle files defs are used
- use new tag <LONCAPA_INTERNAL_TURN_STYLE_ON /> to turn style def use back on
- removed recurse sub completely
- get_all_text now understands the Parser stack
Bugs:
- get_all_unbalanced_text needs to use parser stack
- get_all_text uses need to pass entrie parser stack
- style defs that have a tag that ends in a different style def can't use get_all_text
Need To Test:
- pars stack pops in end tags looking for start tags in get_all_text
1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.81 2002/11/06 23:05:02 albertel Exp $
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: # 2/21 Guy
29: # 8/20 Gerd Kortemeyer
30:
31: package Apache::scripttag;
32:
33: use strict;
34: use Apache::lonnet;
35: use Apache::style;
36:
37: #Globals
38: # this used to pass around the standard callsub arguments to a tag func
39: # so xmlparse can reenter the inner_xmlparse loop.
40:
41: @Apache::scripttag::parser_env = ();
42: BEGIN {
43: &Apache::lonxml::register('Apache::scripttag',
44: ('script','scriptlib','parserlib','import',
45: 'window','display','storetc','physnet',
46: 'standalone','comment',
47: 'LONCAPA_INTERNAL_TURN_STYLE_ON'));
48: }
49:
50: sub start_LONCAPA_INTERNAL_TURN_STYLE_ON {
51: $Apache::lonxml::usestyle=1;
52: return ('','no');
53: }
54:
55: sub end_LONCAPA_INTERNAL_TURN_STYLE_ON {
56: return ('','no');
57: }
58:
59: sub start_script {
60: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
61: @Apache::scripttag::parser_env = @_;
62: my $result='';
63: my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
64: &Apache::lonxml::debug("found type of $type");
65: if ($type eq "loncapa/perl") {
66: my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
67: if ( $target eq "modified" ) {
68: $result=$token->[4].&Apache::edit::modifiedfield();
69: } elsif ( $target eq 'web' || $target eq 'tex' ||
70: $target eq 'grade' || $target eq 'answer' ||
71: $target eq 'analyze' ) {
72: if (!$Apache::lonxml::default_homework_loaded) {
73: &Apache::lonxml::default_homework_load($safeeval);
74: }
75: &Apache::run::run($bodytext,$safeeval);
76: if (($target eq 'answer') && ($Apache::lonhomework::viewgrades == 'F')) {
77: $Apache::lonxml::evaluate--;
78: $result.="<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"><pre>";
79: my $listing= &HTML::Entities::encode(&Apache::run::dump($target,$safeeval));
80:
81: $result.=$listing;
82: $result.= "</pre></body></html>\');newWindow.document.close();void(0);\">Script Vars</a><br />";
83: }
84: } elsif ($target eq "edit" ) {
85: #&Apache::run::run($bodytext,$safeeval);
86: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
87: $result=&Apache::edit::tag_start($target,$token,'Script');
88: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
89: }
90: } else {
91: if ($target ne "meta") {
92: $result = $token->[4];
93: my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
94: $result.=$bodytext;
95: }
96: }
97: return $result;
98: }
99:
100: sub end_script {
101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
102: if ( $target eq "meta" ) { return ''; }
103: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
104: my $result='';
105: #other script blocks need to survive
106: if ($type ne "loncapa/perl") {
107: return $token->[2];
108: } elsif ($target eq 'edit' ) {
109: return &Apache::edit::end_table();
110: } elsif ($target eq 'answer') {
111: $Apache::lonxml::evaluate++;
112: }
113: return '';
114: }
115:
116: sub start_display {
117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
118:
119: my $result;
120: my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
121:
122: if ( $target eq "modified" ) {
123: $result=$token->[4].&Apache::edit::modifiedfield();
124: } elsif ( $target eq 'web' || $target eq 'tex' ||
125: $target eq 'grade' || $target eq 'answer' ||
126: $target eq 'analyze') {
127: if (!$Apache::lonxml::default_homework_loaded) {
128: &Apache::lonxml::default_homework_load($safeeval);
129: }
130: $result=&Apache::run::run($bodytext,$safeeval);
131: if ($target eq 'grade' || $target eq 'answer' ||
132: $target eq 'analyze') {
133: $result=''; # grade should produce no output
134: }
135: } elsif ($target eq "edit" ) {
136: #$result =
137: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
138: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
139: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
140: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
141: }
142: return $result;
143: }
144:
145: sub end_display {
146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
147: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
148: return '';
149: }
150:
151: sub start_scriptlib {
152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
153: my $bodytext;
154: my $result ='';
155: my $error='';
156:
157: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
158: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
159: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
160: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
161: $$parstack[$#$parstack]);
162: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
163: $bodytext);
164: my $script=&Apache::lonnet::getfile($location);
165: if ($script == -1) {
166: if ($target eq 'edit') {
167: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
168: } else {
169: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
170: return "";
171: }
172: }
173: &Apache::run::run($script,$safeeval);
174: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
175: }
176: if ($target eq "edit" ) {
177: $result=
178: &Apache::edit::tag_start($target,$token,'New Script Functions').
179: &Apache::edit::editline($token->[1],$bodytext,'',40).
180: $error.'</td></tr>'.
181: &Apache::edit::end_table();
182: }
183: if ($target eq "modified" ) {
184: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
185: $result=$token->[4].&Apache::edit::modifiedfield($token);
186: &Apache::lonxml::debug($result);
187: }
188: return $result;
189: }
190:
191: sub end_scriptlib {
192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
193: my @result;
194: if ($target eq "edit" ) { $result[1]='no'; }
195: return @result;
196: }
197:
198: sub start_parserlib {
199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
200: my $bodytext;
201: my $result ="";
202: my $error='';
203: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' ||
204: $target eq 'edit' || $target eq 'answer' || $target eq 'analyze') {
205: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
206: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
207: $$parstack[$#$parstack]);
208: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
209: $bodytext);
210: my $styletext=&Apache::lonnet::getfile($location);
211: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
212: if ($styletext == -1) {
213: if ($target eq 'edit') {
214: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
215: } else {
216: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
217: return "";
218: }
219: }
220: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
221: }
222: if ($target eq "edit" ) {
223: $result=
224: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
225: &Apache::edit::editline($token->[1],$bodytext,'',40).
226: $error.'</td></tr>'.
227: &Apache::edit::end_table();
228: }
229: if ($target eq "modified" ) {
230: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
231: $result=$token->[4].&Apache::edit::modifiedfield($token);
232: &Apache::lonxml::debug($result);
233: }
234: return $result;
235: }
236:
237: sub end_parserlib {
238: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
239: my @result;
240: if ($target eq "edit" ) { $result[1]='no'; }
241: return @result;
242: }
243:
244: sub start_window {
245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
246: my $result = '';
247: if ($target eq 'web') {
248: &Apache::lonxml::startredirection;
249: } elsif ($target eq 'tex') {
250: $result = '\unskip\footnote{';
251: }
252: return $result;
253: }
254:
255: sub end_window {
256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
257: my $result;
258: if ($target eq 'web') {
259: my $output=&Apache::lonxml::endredirection;
260: $output =~ s/\"/\"\;/g;
261: $result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
262: } elsif ($target eq 'tex') {
263: $result = '}';
264: } else {
265: $result = '';
266: }
267: return $result;
268: }
269:
270: sub start_import {
271: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
272: my $bodytext=$$parser[$#$parser]->get_text("/import");
273: my $result ="";
274:
275: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
276:
277: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
278: $target eq 'tex' || $target eq 'analyze' ) {
279: # FIXME this probably needs to be smart about construction vs.
280: # non construction space.
281: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
282: my $file=&Apache::lonnet::getfile($location);
283: if ($file == -1) {
284: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
285: return "";
286: }
287:
288: my $dir=$location;
289: $dir=~s:/[^/]*$::;
290: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
291: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
292: if (!$id) { $id=$Apache::lonxml::curdepth; }
293: push(@Apache::inputtags::import,$id);
294: &Apache::lonxml::newparser($parser,\$file,$dir);
295: } elsif ($target eq "edit" ) {
296: $result.=&Apache::edit::tag_start($target,$token);
297: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
298: #FIXME this need to convert $bodytext to be a contruction space reference
299: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
300: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
301: } elsif ($target eq 'modified') {
302: $bodytext=$$parser[$#$parser]->get_text("/import");
303: $result=$token->[4].&Apache::edit::modifiedfield($token);
304: &Apache::lonxml::debug($result);
305: } elsif ($target eq 'meta') {
306: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
307: $result.='<import part="'.$Apache::inputtags::part;
308: if ($id) {
309: $result.='" id="'.$id;
310: }
311: $result.='">';
312: $result.=$bodytext;
313: $result.='</import>';
314: }
315: return $result;
316: }
317:
318: sub end_import {
319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
320: pop(@Apache::inputtags::import);
321: my $result;
322: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
323: return $result;
324: }
325:
326: sub start_storetc {
327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
328: my $result = '';
329: &Apache::lonxml::startredirection;
330: return $result;
331: }
332:
333: sub end_storetc {
334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
335: my $result;
336: my $output=&Apache::lonxml::endredirection;
337: $output =~ s/\"/\"\;/g;
338: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
339: return $result;
340: }
341:
342:
343: sub start_physnet {
344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
345: my $bodytext = '/adm/includes/physnet.sty';
346: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
347: my $cbistyletext=&Apache::lonnet::getfile($location);
348:
349: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
350: $$parser['-1']->unget_token($token);
351: # if ( defined($$style{'physnet'}) ) {
352: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
353: # }
354: return "";
355: }
356:
357: sub end_physnet {
358: return '';
359: }
360:
361: sub start_standalone {
362: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
363: my $result='';
364: if ($target eq 'web' ) {
365: if ( $ENV{'request.course.id'} ) {
366: my $inside = &Apache::lonxml::get_all_text("/standalone",$$parser[-1]);
367: } else {
368: $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
369: }
370: }
371: return $result;
372: }
373:
374: sub end_standalone {
375: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
376: my $result='';
377: if ($target eq 'web' ) {
378: if ( $ENV{'request.course.id'} ) {
379: } else {
380: $result='</td></tr></table>';
381: }
382: }
383: return $result;
384: }
385:
386: sub start_comment {
387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
388: my $result='';
389: if ($target eq 'edit') {
390: $result=&Apache::edit::tag_start($target,$token);
391: my $bodytext=&Apache::lonxml::get_all_text("/comment",$$parser[$#$parser]);
392: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
393: } elsif ( $target eq 'modified') {
394: $result=$token->[4].&Apache::edit::modifiedfield($token);
395: } elsif ( $target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
396: $target eq 'answer' || $target eq 'meta' || $target eq 'analyze') {
397: #normally throw away comments
398: my $bodytext=&Apache::lonxml::get_all_text("/comment",$$parser[$#$parser]);
399: }
400: return $result;
401: }
402:
403: sub end_comment {
404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
405: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
406: return '';
407: }
408:
409:
410: sub xmlparse {
411: my ($string) = @_;
412: &Apache::lonxml::debug("Got $string");
413: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
414: @Apache::scripttag::parser_env;
415: my @parser;
416: &Apache::lonxml::newparser(\@parser,\$string);
417: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
418: $parstack,\@parser,
419: $safeeval,$style);
420: return $result;
421: }
422:
423: 1;
424: __END__
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