--- loncom/xml/lonxml.pm 2008/10/24 18:23:22 1.487
+++ loncom/xml/lonxml.pm 2010/01/28 18:46:47 1.494.4.3
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# XML Parser Module
#
-# $Id: lonxml.pm,v 1.487 2008/10/24 18:23:22 raeburn Exp $
+# $Id: lonxml.pm,v 1.494.4.3 2010/01/28 18:46:47 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -37,6 +37,25 @@
# to any other parties under any circumstances.
#
+=pod
+
+=head1 NAME
+
+Apache::lonxml
+
+=head1 SYNOPSIS
+
+XML Parsing Module
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+
+=head1 SUBROUTINES
+
+=cut
+
+
package Apache::lonxml;
use vars
@@ -90,6 +109,7 @@ use Apache::lonfeedback();
use Apache::lonmsg();
use Apache::loncacc();
use Apache::lonmaxima();
+use Apache::lonr();
use Apache::lonlocal;
#==================================== Main subroutine: xmlparse
@@ -505,12 +525,10 @@ sub inner_xmlparse {
if (!$Apache::lonxml::usestyle) {
$extras=$Apache::lonxml::style_values;
}
- if ($token->[1] ne 'translated') {
- if ( $#$parstack > -1 ) {
- $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
- } else {
- $result= &Apache::run::evaluate($result,$safeeval,$extras);
- }
+ if ( $#$parstack > -1 ) {
+ $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
+ } else {
+ $result= &Apache::run::evaluate($result,$safeeval,$extras);
}
}
$Apache::lonxml::post_evaluate=1;
@@ -660,6 +678,7 @@ sub setup_globals {
$Apache::lonxml::request=$request;
$errorcount=0;
$warningcount=0;
+ $Apache::lonxml::internal_error=0;
$Apache::lonxml::default_homework_loaded=0;
$Apache::lonxml::usestyle=1;
&init_counter();
@@ -737,6 +756,13 @@ sub init_safespace {
$safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval,
'&maxima_cas_formula_fix');
+ $safehole->wrap(\&Apache::lonr::r_eval,$safeeval,'&r_eval');
+ $safehole->wrap(\&Apache::lonr::Rentry,$safeeval,'&Rentry');
+ $safehole->wrap(\&Apache::lonr::Rarray,$safeeval,'&Rarray');
+ $safehole->wrap(\&Apache::lonr::r_check,$safeeval,'&r_check');
+ $safehole->wrap(\&Apache::lonr::r_cas_formula_fix,$safeeval,
+ '&r_cas_formula_fix');
+
$safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
'&capa_formula_fix');
@@ -1017,7 +1043,7 @@ sub get_id {
my ($parstack,$safeeval)=@_;
my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) {
- &error(&mt("ID "[_1]" contains invalid characters, IDs are only allowed to contain letters, numbers, spaces and -",'<tt>'.$id.'</tt>'));
+ &error(&mt("ID [_1] contains invalid characters, IDs are only allowed to contain letters, numbers, spaces and -",'<tt>'.$id.'</tt>'));
}
if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
return $id;
@@ -1486,6 +1512,15 @@ SIMPLECONTENT
return $filecontents;
}
+sub createnewjs {
+ my $filecontents=(<<SIMPLECONTENT);
+<script type="text/javascript" language="Javascript">
+
+</script>
+SIMPLECONTENT
+ return $filecontents;
+}
+
sub verify_html {
my ($filecontents)=@_;
if ($filecontents!~/(?:\<|\<\;)(?:html|xml)[^\<]*(?:\>|\>\;)/is) {
@@ -1511,20 +1546,30 @@ sub renderingoptions {
= &Apache::loncommon::plainlanguagedescription($_);
}
}
- return
- '<span class="LC_nobreak">'.
- &mt('Language:').' '.
- &Apache::loncommon::select_form($env{'form.languages'},'languages',
- %langchoices).'
- </span>
- <span class="LC_nobreak">'.
+ my $output;
+ unless ($env{'form.forceedit'}) {
+ $output .=
+ '<span class="LC_nobreak">'.
+ &mt('Language:').' '.
+ &Apache::loncommon::select_form(
+ $env{'form.languages'},
+ 'languages',
+ &Apache::lonlocal::texthash(%langchoices)).
+ '</span>';
+ }
+ $output .=
+ ' <span class="LC_nobreak">'.
&mt('Math Rendering:').' '.
- &Apache::loncommon::select_form($env{'form.texengine'},'texengine',
- ('' => '',
- 'tth' => 'tth (TeX to HTML)',
- 'jsMath' => 'jsMath',
- 'mimetex' => 'mimetex (Convert to Images)')).'
- </span>';
+ &Apache::loncommon::select_form(
+ $env{'form.texengine'},
+ 'texengine',
+ &Apache::lonlocal::texthash
+ ('' => '',
+ 'tth' => 'tth (TeX to HTML)',
+ 'jsMath' => 'jsMath',
+ 'mimetex' => 'mimetex (Convert to Images)')).
+ '</span>';
+ return $output;
}
sub inserteditinfo {
@@ -1533,6 +1578,7 @@ sub inserteditinfo {
my $xml_help = '';
my $initialize='';
my $textarea_id = 'filecont';
+ my $dragmath_button;
my ($add_to_onload, $add_to_onresize);
$initialize=&Apache::lonhtmlcommon::spellheader();
if ($filetype eq 'html'
@@ -1570,6 +1616,10 @@ FULLPAGE
}
</script>
FULLPAGE
+ if ($filetype eq 'html') {
+ $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup');
+ $dragmath_button = &Apache::lonhtmlcommon::dragmath_button('filecont',1);
+ }
}
$add_to_onload = 'initDocument();';
@@ -1588,9 +1638,12 @@ FULLPAGE
my $spelllink .=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
my $textarea_events = &Apache::edit::element_change_detection();
my $form_events = &Apache::edit::form_change_detection();
- my $htmlerror=&verify_html($filecontents);
- if ($htmlerror) {
- $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
+ my $htmlerror;
+ if ($filetype eq 'html') {
+ $htmlerror=&verify_html($filecontents);
+ if ($htmlerror) {
+ $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
+ }
}
my $editfooter=(<<ENDFOOTER);
$initialize
@@ -1606,7 +1659,7 @@ $initialize
<div class="LC_edit_problem_discards">
<input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
<input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" />
- $spelllink $htmlerror
+ $dragmath_button $spelllink $htmlerror
</div>
<div class="LC_edit_problem_saves">
<input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
@@ -1653,9 +1706,8 @@ sub get_target {
sub handler {
my $request=shift;
-
+
my $target=&get_target();
-
$Apache::lonxml::debug=$env{'user.debug'};
&Apache::loncommon::content_type($request,'text/html');
@@ -1664,6 +1716,21 @@ sub handler {
$request->set_last_modified(&Apache::lonnet::metadata($request->uri,
'lastrevisiondate'));
}
+ # Embedded Flash movies (e.g., from Camtasia) served from https will not display in IE
+ # if XML config file has expired from cache.
+ if ($ENV{'SERVER_PORT'} == 443) {
+ if ($request->uri =~ /\.xml$/) {
+ my ($httpbrowser,$clientbrowser) =
+ &Apache::loncommon::decode_user_agent($request);
+ if ($clientbrowser =~ /^explorer$/i) {
+ delete $request->headers_out->{'Cache-control'};
+ delete $request->headers_out->{'Pragma'};
+ my $expiration = time + 60;
+ my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime($expiration));
+ $request->headers_out->set("Expires" => $date);
+ }
+ }
+ }
$request->send_http_header;
return OK if $request->header_only;
@@ -1671,11 +1738,12 @@ sub handler {
my $file=&Apache::lonnet::filelocation("",$request->uri);
my $filetype;
- if ($file =~ /\.sty$/) {
- $filetype='sty';
+ if ($file =~ /\.(sty|css|js|txt)$/) {
+ $filetype=$1;
} else {
$filetype='html';
}
+
#
# Edit action? Save file.
#
@@ -1704,7 +1772,9 @@ ENDNOTFOUND
if ($env{'request.state'} ne 'published') {
if ($filetype eq 'sty') {
$filecontents=&createnewsty();
- } else {
+ } elsif ($filetype eq 'js') {
+ $filecontents=&createnewjs();
+ } elsif (($filetype ne 'css') && ($filetype ne 'txt')) {
$filecontents=&createnewhtml();
}
$env{'form.editmode'}='Edit'; #force edit mode
@@ -1720,27 +1790,43 @@ ENDNOTFOUND
['editmode']);
}
if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
- &Apache::structuretags::reset_problem_globals();
- $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
- '',%mystyle);
+ if ($filetype eq 'html' || $filetype eq 'sty') {
+ &Apache::structuretags::reset_problem_globals();
+ $result = &Apache::lonxml::xmlparse($request,$target,
+ $filecontents,'',%mystyle);
# .html files may contain <problem> or <Task> need to clean
# up if it did
- &Apache::structuretags::reset_problem_globals();
- &Apache::lonhomework::finished_parsing();
+ &Apache::structuretags::reset_problem_globals();
+ &Apache::lonhomework::finished_parsing();
+ } else {
+ $result = $filecontents;
+ }
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['rawmode']);
if ($env{'form.rawmode'}) { $result = $filecontents; }
- if ($filetype eq 'sty') {
+ if ($filetype ne 'html') {
+ my $nochgview = 1;
my $controls =
- ($env{'request.state'} eq 'construct') ? &Apache::londefdef::edit_controls()
+ ($env{'request.state'} eq 'construct') ? &Apache::londefdef::edit_controls($nochgview)
: '';
- my %options = ('bgcolor' => '#FFFFFF');
- $result =
- &Apache::loncommon::start_page(undef,undef,\%options).
- $controls.
- $result.
- &Apache::loncommon::end_page();
- }
+ if ($filetype ne 'sty') {
+ $result =~ s/</</g;
+ $result =~ s/>/>/g;
+ $result = '<table class="LC_sty_begin">'.
+ '<tr><td><b><pre>'.$result.
+ '</pre></b></td></tr></table>';
+ }
+ if ($env{'environment.remote'} eq 'off') {
+ my %options = ('bgcolor' => '#FFFFFF');
+ $result =
+ &Apache::loncommon::start_page(undef,undef,\%options).
+ $controls.
+ $result.
+ &Apache::loncommon::end_page();
+ } else {
+ $result = $controls.$result;
+ }
+ }
}
}
@@ -1774,7 +1860,7 @@ ENDNOTFOUND
&Apache::lonxml::message_location().
$edit_info.
&Apache::loncommon::end_page();
- }
+ }
}
if ($filetype eq 'html') { &writeallows($request->uri); }
@@ -1830,6 +1916,8 @@ sub error {
$errorcount++;
+ $Apache::lonxml::internal_error=1;
+
if (defined($Apache::inputtags::part)) {
if ( @Apache::inputtags::response ) {
push(@errors,