1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.69 2002/03/28 22:02:27 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'));
47: }
48:
49: sub start_script {
50: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
51: @Apache::scripttag::parser_env = @_;
52: my $result='';
53: my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
54: &Apache::lonxml::debug("found type of $type");
55: if ($type eq "loncapa/perl") {
56: my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
57: if ( $target eq "modified" ) {
58: $result=$token->[4].&Apache::edit::modifiedfield();
59: } elsif ( $target eq 'web' || $target eq 'tex' ||
60: $target eq 'grade' || $target eq 'answer') {
61: &Apache::run::run($bodytext,$safeeval);
62: if (($target eq 'answer') && ($Apache::lonhomework::viewgrades == 'F')) {
63: $Apache::lonxml::evaluate--;
64: $result.="<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"><pre>";
65: my $listing= &Apache::run::dump($target,$safeeval);
66: $listing =~ s/\n/\\n/g;
67: $listing =~ s/\"/"/g;
68: $listing =~ s/\'/’/g;
69: $listing =~ s/</</g;
70: $listing =~ s/>/>/g;
71: $listing =~ s/&/&/g;
72: $result.=$listing;
73: $result.= "</pre></body></html>\');newWindow.document.close();void(0);\">Script Vars</a><br />";
74: }
75: } elsif ($target eq "edit" ) {
76: #&Apache::run::run($bodytext,$safeeval);
77: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
78: $result=&Apache::edit::tag_start($target,$token,'Script');
79: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',50,4);
80: }
81: } else {
82: if ($target ne "meta") {
83: $result = $token->[4];
84: my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
85: $result.=$bodytext;
86: }
87: }
88: return $result;
89: }
90:
91: sub end_script {
92: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
93: if ( $target eq "meta" ) { return ''; }
94: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
95: my $result='';
96: #other script blocks need to survive
97: if ($type ne "loncapa/perl") {
98: return $token->[2];
99: } elsif ($target eq 'edit' ) {
100: return &Apache::edit::end_table();
101: } elsif (($ENV{'request.state'} eq 'construct') && ($target eq 'answer')) {
102: $Apache::lonxml::evaluate++;
103: }
104: return '';
105: }
106:
107: sub start_display {
108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
109:
110: my $result;
111: my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
112:
113: if ( $target eq "modified" ) {
114: $result=$token->[4].&Apache::edit::modifiedfield();
115: } elsif ( $target eq 'web' || $target eq 'tex' ||
116: $target eq 'grade' || $target eq 'answer') {
117: $result=&Apache::run::run($bodytext,$safeeval);
118: if ($target eq 'grade' || $target eq 'answer' ) {
119: $result=''; # grade should produce no output
120: }
121: } elsif ($target eq "edit" ) {
122: #$result =
123: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
124: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
125: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
126: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1)
127: }
128: return $result;
129: }
130:
131: sub end_display {
132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
133: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
134: return '';
135: }
136:
137: sub start_scriptlib {
138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
139: my $bodytext;
140: my $result ='';
141: my $error='';
142:
143: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
144: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
145: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
146: $$parstack[$#$parstack]);
147: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
148: $bodytext);
149: my $script=&Apache::lonnet::getfile($location);
150: if ($script == -1) {
151: if ($target eq 'edit') {
152: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
153: } else {
154: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
155: return "";
156: }
157: }
158: &Apache::run::run($script,$safeeval);
159: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
160: }
161: if ($target eq "edit" ) {
162: $result=
163: &Apache::edit::tag_start($target,$token,'New Script Functions').
164: &Apache::edit::editline($token->[1],$bodytext,'',40).
165: $error.'</td></tr>'.
166: &Apache::edit::end_table();
167: }
168: if ($target eq "modified" ) {
169: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
170: $result=$token->[4].&Apache::edit::modifiedfield($token);
171: &Apache::lonxml::debug($result);
172: }
173: return $result;
174: }
175:
176: sub end_scriptlib {
177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
178: my @result;
179: if ($target eq "edit" ) { $result[1]='no'; }
180: return @result;
181: }
182:
183: sub start_parserlib {
184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
185: my $bodytext;
186: my $result ="";
187: my $error='';
188: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
189: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
190: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
191: $$parstack[$#$parstack]);
192: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
193: $bodytext);
194: my $styletext=&Apache::lonnet::getfile($location);
195: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
196: if ($styletext == -1) {
197: if ($target eq 'edit') {
198: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
199: } else {
200: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
201: return "";
202: }
203: }
204: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
205: }
206: if ($target eq "edit" ) {
207: $result=
208: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
209: &Apache::edit::editline($token->[1],$bodytext,'',40).
210: $error.'</td></tr>'.
211: &Apache::edit::end_table();
212: }
213: if ($target eq "modified" ) {
214: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
215: $result=$token->[4].&Apache::edit::modifiedfield($token);
216: &Apache::lonxml::debug($result);
217: }
218: return $result;
219: }
220:
221: sub end_parserlib {
222: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
223: my @result;
224: if ($target eq "edit" ) { $result[1]='no'; }
225: return @result;
226: }
227:
228: sub start_window {
229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
230: my $result = '';
231: if ($target eq 'web') {
232: &Apache::lonxml::startredirection;
233: } elsif ($target eq 'tex') {
234: $result = '\unskip\footnote{';
235: }
236: return $result;
237: }
238:
239: sub end_window {
240: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
241: my $result;
242: if ($target eq 'web') {
243: my $output=&Apache::lonxml::endredirection;
244: $output =~ s/\"/\"\;/g;
245: $result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
246: } elsif ($target eq 'tex') {
247: $result = '}';
248: } else {
249: $result = '';
250: }
251: return $result;
252: }
253:
254: sub start_import {
255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
256: my $bodytext=$$parser[$#$parser]->get_text("/import");
257: my $result ="";
258:
259: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
260:
261: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
262: # FIXME this probably needs to be smart about construction vs.
263: # non construction space.
264: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
265: my $file=&Apache::lonnet::getfile($location);
266: if ($file == -1) {
267: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
268: return "";
269: }
270:
271: my $dir=$location;
272: $dir=~s:/[^/]*$::;
273: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
274: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
275: if (!$id) { $id=$Apache::lonxml::curdepth; }
276: push(@Apache::inputtags::import,$id);
277: &Apache::lonxml::newparser($parser,\$file,$dir);
278: } elsif ($target eq "edit" ) {
279: $result.=&Apache::edit::tag_start($target,$token);
280: $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
281: #FIXME this need to convert $bodytext to be a contruction space reference
282: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
283: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
284: } elsif ($target eq 'modified') {
285: $bodytext=$$parser[$#$parser]->get_text("/import");
286: $result=$token->[4].&Apache::edit::modifiedfield($token);
287: &Apache::lonxml::debug($result);
288: } elsif ($target eq 'meta') {
289: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
290: $result.='<import part="'.$Apache::inputtags::part;
291: if ($id) {
292: $result.='" id="'.$id;
293: }
294: $result.='">';
295: $result.=$bodytext;
296: $result.='</import>';
297: }
298: return $result;
299: }
300:
301: sub end_import {
302: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
303: pop(@Apache::inputtags::import);
304: my $result;
305: if ($target eq 'edit' ) { $result=&Apache::edit::end_table(); }
306: return $result;
307: }
308:
309: sub start_storetc {
310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
311: my $result = '';
312: &Apache::lonxml::startredirection;
313: return $result;
314: }
315:
316: sub end_storetc {
317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
318: my $result;
319: my $output=&Apache::lonxml::endredirection;
320: $output =~ s/\"/\"\;/g;
321: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
322: return $result;
323: }
324:
325:
326: sub start_physnet {
327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
328: my $bodytext = '/adm/includes/physnet.sty';
329: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
330: my $cbistyletext=&Apache::lonnet::getfile($location);
331:
332: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
333: $$parser['-1']->unget_token($token);
334: # if ( defined($$style{'physnet'}) ) {
335: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
336: # }
337: return "";
338: }
339:
340: sub end_physnet {
341: return '';
342: }
343:
344: sub start_standalone {
345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
346: if ($target eq 'web' && $ENV{'request.course.id'} ) {
347: my $inside = &Apache::lonxml::get_all_text("/standalone",$$parser[-1]);
348: }
349: return '';
350: }
351:
352: sub end_standalone {
353: return '';
354: }
355:
356:
357: sub xmlparse {
358: my ($string) = @_;
359: &Apache::lonxml::debug("Got $string");
360: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
361: @Apache::scripttag::parser_env;
362: my @parser;
363: &Apache::lonxml::newparser(\@parser,\$string);
364: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
365: $parstack,\@parser,
366: $safeeval,$style);
367: return $result;
368: }
369:
370: 1;
371: __END__
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