1: # The LearningOnline Network with CAPA
2: # <script> definiton
3: #
4: # $Id: scripttag.pm,v 1.58 2001/11/29 19:03:58 www 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: sub BEGIN {
43: &Apache::lonxml::register('Apache::scripttag',('script','scriptlib',
44: 'parserlib','import',
45: 'window','display',
46: 'storetc','physnet'));
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",$$parser[$#$parser]);
57: if ( $target eq "modified" ) {
58: $result=$token->[4].&Apache::edit::modifiedfield();
59: } elsif ( $target eq 'web' || $target eq 'tex' ||
60: $target eq 'grade' || $target eq 'answer') {
61: &Apache::run::run($bodytext,$safeeval);
62: if (($ENV{'request.state'} eq 'construct') && ($target eq 'answer')) {
63: $Apache::lonxml::evaluate--;
64: $result.="<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"><pre>";
65: my $listing= &Apache::run::dump($target,$safeeval);
66: $listing =~ s/\n/\\n/g;
67: $result.=$listing;
68: $result.= "</pre></body></html>\');newWindow.document.close();void(0);\">Script Vars</a><br />";
69: }
70: } elsif ($target eq "edit" ) {
71: #&Apache::run::run($bodytext,$safeeval);
72: #$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
73: $result=&Apache::edit::tag_start($target,$token,'Script');
74: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',50,4);
75: }
76: } else {
77: if ($target ne "meta") { $result = $token->[4]; }
78: }
79: return $result;
80: }
81:
82: sub end_script {
83: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
84: if ( $target eq "meta" ) { return ''; }
85: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
86: my $result='';
87: #other script blocks need to survive
88: if ($type ne "loncapa/perl") {
89: return $token->[2];
90: } elsif ($target eq 'edit' ) {
91: return &Apache::edit::end_table();
92: } elsif (($ENV{'request.state'} eq 'construct') && ($target eq 'answer')) {
93: $Apache::lonxml::evaluate++;
94: }
95: return '';
96: }
97:
98: sub start_display {
99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100:
101: my $result;
102: my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
103:
104: if ( $target eq "modified" ) {
105: $result=$token->[4].&Apache::edit::modifiedfield();
106: } elsif ( $target eq 'web' || $target eq 'tex' ||
107: $target eq 'grade' || $target eq 'answer') {
108: $result=&Apache::run::run($bodytext,$safeeval);
109: if ($target eq 'grade' || $target eq 'answer' ) {
110: $result=''; # grade should produce no output
111: }
112: } elsif ($target eq "edit" ) {
113: #$result =
114: # "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
115: #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
116: $result=&Apache::edit::tag_start($target,$token,'Script With Display');
117: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1)
118: }
119: return $result;
120: }
121:
122: sub end_display {
123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
124: if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
125: return '';
126: }
127:
128: sub start_scriptlib {
129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
130: my $bodytext;
131: my $result ='';
132: my $error='';
133:
134: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
135: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
136: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
137: $$parstack[$#$parstack]);
138: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
139: $bodytext);
140: my $script=&Apache::lonnet::getfile($location);
141: if ($script == -1) {
142: if ($target eq 'edit') {
143: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
144: } else {
145: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
146: return "";
147: }
148: }
149: &Apache::run::run($script,$safeeval);
150: #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
151: }
152: if ($target eq "edit" ) {
153: $result=
154: &Apache::edit::tag_start($target,$token,'New Script Functions').
155: &Apache::edit::editfield($token->[1],$bodytext,'',40,1).
156: $error.'</td></tr>'.
157: &Apache::edit::end_table();
158: }
159: if ($target eq "modified" ) {
160: $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
161: $result=&Apache::edit::modifiedfield($token);
162: &Apache::lonxml::debug($result);
163: }
164: return $result;
165: }
166:
167: sub end_scriptlib {
168: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
169: my @result;
170: if ($target eq "edit" ) { $result[1]='no'; }
171: return @result;
172: }
173:
174: sub start_parserlib {
175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
176: my $bodytext;
177: my $result ="";
178: my $error='';
179: if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
180: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
181: $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
182: $$parstack[$#$parstack]);
183: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
184: $bodytext);
185: my $styletext=&Apache::lonnet::getfile($location);
186: #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
187: if ($styletext == -1) {
188: if ($target eq 'edit') {
189: $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
190: } else {
191: &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
192: return "";
193: }
194: }
195: %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
196: }
197: if ($target eq "edit" ) {
198: $result=
199: &Apache::edit::tag_start($target,$token,'New Tag Definitions').
200: &Apache::edit::editfield($token->[1],$bodytext,'',40,1).
201: $error.'</td></tr>'.
202: &Apache::edit::end_table();
203: }
204: if ($target eq "modified" ) {
205: $bodytext=$$parser[$#$parser]->get_text("/parserlib");
206: $result=&Apache::edit::modifiedfield($token);
207: &Apache::lonxml::debug($result);
208: }
209: return $result;
210: }
211:
212: sub end_parserlib {
213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
214: my @result;
215: if ($target eq "edit" ) { $result[1]='no'; }
216: return @result;
217: }
218:
219: sub start_window {
220: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
221: my $result = '';
222: if ($target eq 'web') {
223: &Apache::lonxml::startredirection;
224: } elsif ($target eq 'tex') {
225: $result = '\unskip\footnote{';
226: }
227: return $result;
228: }
229:
230: sub end_window {
231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
232: my $result;
233: if ($target eq 'web') {
234: my $output=&Apache::lonxml::endredirection;
235: $output =~ s/\"/\"\;/g;
236: $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"> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
237: } elsif ($target eq 'tex') {
238: $result = '}';
239: } else {
240: $result = '';
241: }
242: return $result;
243: }
244:
245: sub start_import {
246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
247: my $bodytext=$$parser[$#$parser]->get_text("/import");
248: my $result ="";
249:
250: $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
251:
252: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
253: # FIXME this probably needs to be smart about construction vs.
254: # non construction space.
255: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
256: my $file=&Apache::lonnet::getfile($location);
257: if ($file == -1) {
258: &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
259: return "";
260: }
261:
262: my $dir=$location;
263: $dir=~s:/[^/]*$::;
264: # &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
265: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
266: if (!$id) { $id=$Apache::lonxml::curdepth; }
267: push(@Apache::inputtags::import,$id);
268: &Apache::lonxml::newparser($parser,\$file,$dir);
269: } elsif ($target eq "edit" ) {
270: $result.=&Apache::edit::tag_start($target,$token);
271: $result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
272: #FIXME this need to convert $bodytext to be a contruction space reference
273: #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
274: #$result.="Click<a href=\"$location\">here</a> to edit<br />"
275: } elsif ($target eq 'modified') {
276: $bodytext=$$parser[$#$parser]->get_text("/import");
277: $result=&Apache::edit::modifiedfield($token);
278: &Apache::lonxml::debug($result);
279: } elsif ($target eq 'meta') {
280: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
281: $result.='<import part="'.$Apache::inputtags::part;
282: if ($id) {
283: $result.='" id="'.$id;
284: }
285: $result.='">';
286: $result.=$bodytext;
287: $result.='</import>';
288: }
289: return $result;
290: }
291:
292: sub end_import {
293: pop(@Apache::inputtags::import);
294: return '';
295: }
296:
297: sub start_storetc {
298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
299: my $result = '';
300: &Apache::lonxml::startredirection;
301: return $result;
302: }
303:
304: sub end_storetc {
305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
306: my $result;
307: my $output=&Apache::lonxml::endredirection;
308: $output =~ s/\"/\"\;/g;
309: $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
310: return $result;
311: }
312:
313:
314: sub start_physnet {
315: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
316: my $bodytext = '/adm/includes/physnet.sty';
317: my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
318: my $cbistyletext=&Apache::lonnet::getfile($location);
319:
320: %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
321: if ( defined($$style{'physnet'}) ) {
322: &Apache::lonxml::newparser($parser,\$$style{'physnet'});
323: }
324: return "";
325: }
326:
327: sub end_physnet {
328: return '';
329: }
330:
331: sub xmlparse {
332: my ($string) = @_;
333: &Apache::lonxml::debug("Got $string");
334: my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
335: @Apache::scripttag::parser_env;
336: my @parser;
337: &Apache::lonxml::newparser(\@parser,\$string);
338: my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
339: $parstack,\@parser,
340: $safeeval,$style);
341: return $result;
342: }
343:
344: 1;
345: __END__
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