1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.62 2002/01/17 16:35:55 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: 'stadalone'));
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") { $result = $token->[4]; }
83: }
84: return $result;
85: }
86:
87: sub end_script {
88: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
89: if ( $target eq "meta" ) { return ''; }
90: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
91: my $result='';
92: #other script blocks need to survive
93: if ($type ne "loncapa/perl") {
94: return $token->[2];
95: } elsif ($target eq 'edit' ) {
96: return &Apache::edit::end_table();
97: } elsif (($ENV{'request.state'} eq 'construct') && ($target eq 'answer')) {
98: $Apache::lonxml::evaluate++;
99: }
100: return '';
101: }
102:
103: sub start_display {
104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
105:
106: my $result;
107: my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
108:
109: if ( $target eq "modified" ) {
110: $result=$token->[4].&Apache::edit::modifiedfield();
111: } elsif ( $target eq 'web' || $target eq 'tex' ||
112: $target eq 'grade' || $target eq 'answer') {
113: $result=&Apache::run::run($bodytext,$safeeval);
114: if ($target eq 'grade' || $target eq 'answer' ) {
115: $result=''; # grade should produce no output
116: }
117: } elsif ($target eq "edit" ) {
118: #$result =
119: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
120: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
121: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
122: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1)
123: }
124: return $result;
125: }
126:
127: sub end_display {
128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
129: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
130: return '';
131: }
132:
133: sub start_scriptlib {
134: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
135: my $bodytext;
136: my $result ='';
137: my $error='';
138:
139: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
140: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
141: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
142: $$parstack[$#$parstack]);
143: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
144: $bodytext);
145: my $script=&Apache::lonnet::getfile($location);
146: if ($script == -1) {
147: if ($target eq 'edit') {
148: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
149: } else {
150: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
151: return "";
152: }
153: }
154: &Apache::run::run($script,$safeeval);
155: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
156: }
157: if ($target eq "edit" ) {
158: $result=
159: &Apache::edit::tag_start($target,$token,'New Script Functions').
160: &Apache::edit::editfield($token->[1],$bodytext,'',40,1).
161: $error.'</td></tr>'.
162: &Apache::edit::end_table();
163: }
164: if ($target eq "modified" ) {
165: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
166: $result=&Apache::edit::modifiedfield($token);
167: &Apache::lonxml::debug($result);
168: }
169: return $result;
170: }
171:
172: sub end_scriptlib {
173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
174: my @result;
175: if ($target eq "edit" ) { $result[1]='no'; }
176: return @result;
177: }
178:
179: sub start_parserlib {
180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
181: my $bodytext;
182: my $result ="";
183: my $error='';
184: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
185: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
186: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
187: $$parstack[$#$parstack]);
188: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
189: $bodytext);
190: my $styletext=&Apache::lonnet::getfile($location);
191: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
192: if ($styletext == -1) {
193: if ($target eq 'edit') {
194: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
195: } else {
196: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
197: return "";
198: }
199: }
200: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
201: }
202: if ($target eq "edit" ) {
203: $result=
204: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
205: &Apache::edit::editfield($token->[1],$bodytext,'',40,1).
206: $error.'</td></tr>'.
207: &Apache::edit::end_table();
208: }
209: if ($target eq "modified" ) {
210: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
211: $result=&Apache::edit::modifiedfield($token);
212: &Apache::lonxml::debug($result);
213: }
214: return $result;
215: }
216:
217: sub end_parserlib {
218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
219: my @result;
220: if ($target eq "edit" ) { $result[1]='no'; }
221: return @result;
222: }
223:
224: sub start_window {
225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
226: my $result = '';
227: if ($target eq 'web') {
228: &Apache::lonxml::startredirection;
229: } elsif ($target eq 'tex') {
230: $result = '\unskip\footnote{';
231: }
232: return $result;
233: }
234:
235: sub end_window {
236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
237: my $result;
238: if ($target eq 'web') {
239: my $output=&Apache::lonxml::endredirection;
240: $output =~ s/\"/\"\;/g;
241: $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"> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
242: } elsif ($target eq 'tex') {
243: $result = '}';
244: } else {
245: $result = '';
246: }
247: return $result;
248: }
249:
250: sub start_import {
251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
252: my $bodytext=$$parser[$#$parser]->get_text("/import");
253: my $result ="";
254:
255: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
256:
257: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
258: # FIXME this probably needs to be smart about construction vs.
259: # non construction space.
260: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
261: my $file=&Apache::lonnet::getfile($location);
262: if ($file == -1) {
263: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
264: return "";
265: }
266:
267: my $dir=$location;
268: $dir=~s:/[^/]*$::;
269: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
270: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
271: if (!$id) { $id=$Apache::lonxml::curdepth; }
272: push(@Apache::inputtags::import,$id);
273: &Apache::lonxml::newparser($parser,\$file,$dir);
274: } elsif ($target eq "edit" ) {
275: $result.=&Apache::edit::tag_start($target,$token);
276: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
277: #FIXME this need to convert $bodytext to be a contruction space reference
278: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
279: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
280: } elsif ($target eq 'modified') {
281: $bodytext=$$parser[$#$parser]->get_text("/import");
282: $result=&Apache::edit::modifiedfield($token);
283: &Apache::lonxml::debug($result);
284: } elsif ($target eq 'meta') {
285: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
286: $result.='<import part="'.$Apache::inputtags::part;
287: if ($id) {
288: $result.='" id="'.$id;
289: }
290: $result.='">';
291: $result.=$bodytext;
292: $result.='</import>';
293: }
294: return $result;
295: }
296:
297: sub end_import {
298: pop(@Apache::inputtags::import);
299: return '';
300: }
301:
302: sub start_storetc {
303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
304: my $result = '';
305: &Apache::lonxml::startredirection;
306: return $result;
307: }
308:
309: sub end_storetc {
310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
311: my $result;
312: my $output=&Apache::lonxml::endredirection;
313: $output =~ s/\"/\"\;/g;
314: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
315: return $result;
316: }
317:
318:
319: sub start_physnet {
320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
321: my $bodytext = '/adm/includes/physnet.sty';
322: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
323: my $cbistyletext=&Apache::lonnet::getfile($location);
324:
325: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
326: $$parser['-1']->unget_token($token);
327: # if ( defined($$style{'physnet'}) ) {
328: # &Apache::lonxml::newparser($parser,\$$style{'physnet'});
329: # }
330: return "";
331: }
332:
333: sub end_physnet {
334: return '';
335: }
336:
337: sub start_standalone {
338: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
339: if ($target eq 'web' && defined($ENV{'request.course.id'}) ) {
340: my $inside = &Apache::lonxml::get_all_text("/standalone",$$parser[-1]);
341: }
342: return '';
343: }
344:
345: sub end_standalone {
346: return '';
347: }
348:
349:
350: sub xmlparse {
351: my ($string) = @_;
352: &Apache::lonxml::debug("Got $string");
353: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
354: @Apache::scripttag::parser_env;
355: my @parser;
356: &Apache::lonxml::newparser(\@parser,\$string);
357: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
358: $parstack,\@parser,
359: $safeeval,$style);
360: return $result;
361: }
362:
363: 1;
364: __END__
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