--- loncom/xml/lonxml.pm 2003/04/03 22:34:26 1.246
+++ loncom/xml/lonxml.pm 2003/08/07 19:31:16 1.266.2.1
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# XML Parser Module
#
-# $Id: lonxml.pm,v 1.246 2003/04/03 22:34:26 albertel Exp $
+# $Id: lonxml.pm,v 1.266.2.1 2003/08/07 19:31:16 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -70,6 +70,7 @@ use Math::Cephes();
use Math::Random();
use Opcode();
+
sub register {
my ($space,@taglist) = @_;
foreach my $temptag (@taglist) {
@@ -95,6 +96,8 @@ use Apache::run();
use Apache::londefdef();
use Apache::scripttag();
use Apache::edit();
+use Apache::inputtags();
+use Apache::outputtags();
use Apache::lonnet();
use Apache::File();
use Apache::loncommon();
@@ -151,6 +154,10 @@ $Apache::lonxml::counter_changed=0;
#internal check on whether to look at style defs
$Apache::lonxml::usestyle=1;
+#locations used to store the parameter string for style substitutions
+$Apache::lonxml::style_values='';
+$Apache::lonxml::style_end_values='';
+
sub xmlbegin {
my $output='';
if ($ENV{'browser.mathml'}) {
@@ -380,8 +387,11 @@ sub printtokenheader {
sub fontsettings() {
my $headerstring='';
if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
- $headerstring.=
- '<meta Content-Type="text/html; charset=x-mac-roman">';
+ $headerstring.=
+ '<meta Content-Type="text/html; charset=x-mac-roman">';
+ } elsif (!$ENV{'browser.mathml'} && $ENV{'browser.unicode'}) {
+ $headerstring.=
+ '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
}
return $headerstring;
}
@@ -418,8 +428,7 @@ sub xmlparse {
}
}
}
-
- #&printalltags();
+#&printalltags();
my @pars = ();
my $pwd=$ENV{'request.filename'};
$pwd =~ s:/[^/]*$::;
@@ -438,6 +447,7 @@ sub xmlparse {
my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
$safeeval,\%style_for_target);
+
if ($ENV{'request.uri'}) {
&writeallows($ENV{'request.uri'});
}
@@ -491,9 +501,10 @@ sub inner_xmlparse {
my $finaloutput = '';
my $result;
my $token;
+ my $dontpop=0;
while ( $#$pars > -1 ) {
while ($token = $$pars['-1']->get_token) {
- if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
+ if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
if ($metamode<1) {
my $text=$token->[1];
if ($token->[0] eq 'C' && $target eq 'tex') {
@@ -502,8 +513,13 @@ sub inner_xmlparse {
}
$result.=$text;
}
+ } elsif (($token->[0] eq 'D')) {
+ if ($metamode<1 && $target eq 'web') {
+ my $text=$token->[1];
+ $result.=$text;
+ }
} elsif ($token->[0] eq 'PI') {
- if ($metamode<1) {
+ if ($metamode<1 && $target eq 'web') {
$result=$token->[2];
}
} elsif ($token->[0] eq 'S') {
@@ -518,48 +534,57 @@ sub inner_xmlparse {
my $string=$$style_for_target{$token->[1]}.
'<LONCAPA_INTERNAL_TURN_STYLE_ON />';
&Apache::lonxml::newparser($pars,\$string);
+ $Apache::lonxml::style_values=$$parstack[-1];
+ $Apache::lonxml::style_end_values=$$parstack[-1];
} else {
$result = &callsub("start_$token->[1]", $target, $token, $stack,
$parstack, $pars, $safeeval, $style_for_target);
}
} elsif ($token->[0] eq 'E') {
- #clear out any tags that didn't end
- while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
- my $lasttag=$$stack[-1];
- if ($token->[1] =~ /^$lasttag$/i) {
- &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
- last;
- } else {
- &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file');
- &end_tag($stack,$parstack,$token);
- }
- }
-
if ($Apache::lonxml::usestyle &&
exists($$style_for_target{'/'."$token->[1]"})) {
$Apache::lonxml::usestyle=0;
my $string=$$style_for_target{'/'.$token->[1]}.
- '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
+ '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
&Apache::lonxml::newparser($pars,\$string);
+ $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
+ $Apache::lonxml::style_end_values='';
+ $dontpop=1;
} else {
- $result = &callsub("end_$token->[1]", $target, $token, $stack,
- $parstack, $pars,$safeeval, $style_for_target);
+ #clear out any tags that didn't end
+ while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
+ my $lasttag=$$stack[-1];
+ if ($token->[1] =~ /^$lasttag$/i) {
+ &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
+ last;
+ } else {
+ &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file');
+ &end_tag($stack,$parstack,$token);
+ }
+ }
+ $result = &callsub("end_$token->[1]", $target, $token, $stack,
+ $parstack, $pars,$safeeval, $style_for_target);
}
} else {
&Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
}
#evaluate variable refs in result
if ($result ne "") {
+ my $extras;
+ if (!$Apache::lonxml::usestyle) {
+ $extras=$Apache::lonxml::style_values;
+ }
if ( $#$parstack > -1 ) {
- $result=&Apache::run::evaluate($result,$safeeval,$$parstack[-1]);
+ $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
} else {
- $result= &Apache::run::evaluate($result,$safeeval,'');
+ $result= &Apache::run::evaluate($result,$safeeval,$extras);
}
}
if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
- if ($target eq 'tex') {
- $result=&latex_special_symbols($result,$stack,$parstack);
- }
+ #Style file definitions should be correct
+ if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
+ $result=&latex_special_symbols($result,$stack,$parstack);
+ }
}
# Encode any high ASCII characters
@@ -573,9 +598,10 @@ sub inner_xmlparse {
}
$result = '';
- if ($token->[0] eq 'E') {
+ if ($token->[0] eq 'E' && !$dontpop) {
&end_tag($stack,$parstack,$token);
}
+ $dontpop=0;
}
if ($#$pars > -1) {
pop @$pars;
@@ -718,6 +744,7 @@ sub init_safespace {
$safeeval->permit("sort");
$safeeval->deny(":base_io");
$safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
+ $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
$safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
@@ -799,6 +826,7 @@ sub init_safespace {
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
$rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
$safeinit .= ';$external::randomseed='.$rndseed.';';
+ &Apache::lonxml::debug("Setting rndseed to $rndseed");
&Apache::run::run($safeinit,$safeeval);
}
@@ -898,18 +926,23 @@ sub get_all_text_unbalanced {
}
sub increment_counter {
- $Apache::lonxml::counter++;
+ my ($increment) = @_;
+ if (defined($increment) && $increment gt 0) {
+ $Apache::lonxml::counter+=$increment;
+ } else {
+ $Apache::lonxml::counter++;
+ }
$Apache::lonxml::counter_changed=1;
}
sub init_counter {
if (defined($ENV{'form.counter'})) {
$Apache::lonxml::counter=$ENV{'form.counter'};
+ $Apache::lonxml::counter_changed=0;
} else {
$Apache::lonxml::counter=1;
- &store_counter();
+ $Apache::lonxml::counter_changed=1;
}
- $Apache::lonxml::counter_changed=0;
}
sub store_counter {
@@ -1006,8 +1039,6 @@ sub newparser {
} else {
push (@Apache::lonxml::pwd, $dir);
}
-# &Apache::lonxml::debug("pwd:$#Apache::lonxml::pwd");
-# &Apache::lonxml::debug("pwd:$Apache::lonxml::pwd[$#Apache::lonxml::pwd]");
}
sub parstring {
@@ -1111,13 +1142,8 @@ sub inserteditinfo {
my ($result,$filecontents)=@_;
$filecontents = &HTML::Entities::encode($filecontents);
# my $editheader='<a href="#editsection">Edit below</a><hr />';
- my $xml_help = '<table><tr><td>'.
- &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
- undef,undef,600)
- .'</td><td>'.
- &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
- undef,undef,600)
- .'</td></tr></table>';
+ my $xml_help = Apache::loncommon::helpLatexCheatsheet();
+ my $titledisplay=&display_title();
my $buttons=(<<BUTTONS);
<input type="submit" name="attemptclean"
value="Save and then attempt to clean HTML" />
@@ -1135,6 +1161,7 @@ $buttons<br />
<br />$buttons
<br />
</form>
+$titledisplay
ENDFOOTER
# $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
$result=~s/(\<\/body\>)/$editfooter/is;
@@ -1169,37 +1196,37 @@ sub get_target {
}
sub handler {
- my $request=shift;
-
- my $target=&get_target();
-
- $Apache::lonxml::debug=0;
-
- if ($ENV{'browser.mathml'}) {
- $request->content_type('text/xml');
- } else {
- $request->content_type('text/html');
- }
- &Apache::loncommon::no_cache($request);
- $request->send_http_header;
-
- return OK if $request->header_only;
+ my $request=shift;
+
+ my $target=&get_target();
+
+ $Apache::lonxml::debug=$ENV{'user.debug'};
+
+ if ($ENV{'browser.mathml'}) {
+ $request->content_type('text/xml');
+ } else {
+ $request->content_type('text/html');
+ }
+ &Apache::loncommon::no_cache($request);
+ $request->send_http_header;
+
+ return OK if $request->header_only;
- my $file=&Apache::lonnet::filelocation("",$request->uri);
+ my $file=&Apache::lonnet::filelocation("",$request->uri);
#
# Edit action? Save file.
#
- unless ($ENV{'request.state'} eq 'published') {
- if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
- &storefile($file,$ENV{'form.filecont'});
- }
- }
- my %mystyle;
- my $result = '';
- my $filecontents=&Apache::lonnet::getfile($file);
- if ($filecontents eq -1) {
- $result=(<<ENDNOTFOUND);
+ unless ($ENV{'request.state'} eq 'published') {
+ if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
+ &storefile($file,$ENV{'form.filecont'});
+ }
+ }
+ my %mystyle;
+ my $result = '';
+ my $filecontents=&Apache::lonnet::getfile($file);
+ if ($filecontents eq -1) {
+ $result=(<<ENDNOTFOUND);
<html>
<head>
<title>File not found</title>
@@ -1210,40 +1237,58 @@ sub handler {
</html>
ENDNOTFOUND
$filecontents='';
- if ($ENV{'request.state'} ne 'published') {
- $filecontents=&createnewhtml();
- $ENV{'form.editmode'}='Edit'; #force edit mode
- }
- } else {
- unless ($ENV{'request.state'} eq 'published') {
- if ($ENV{'form.attemptclean'}) {
- $filecontents=&htmlclean($filecontents,1);
- }
- }
- if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
- $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
- '',%mystyle);
+ if ($ENV{'request.state'} ne 'published') {
+ $filecontents=&createnewhtml();
+ $ENV{'form.editmode'}='Edit'; #force edit mode
+ }
+ } else {
+ unless ($ENV{'request.state'} eq 'published') {
+ if ($ENV{'form.attemptclean'}) {
+ $filecontents=&htmlclean($filecontents,1);
+ }
+#
+# we are in construction space, see if edit mode forced
+ &Apache::loncommon::get_unprocessed_cgi
+ ($ENV{'QUERY_STRING'},['editmode']);
+ }
+ if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
+ $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
+ '',%mystyle);
+ }
}
- }
-
+
#
# Edit action? Insert editing commands
#
- unless ($ENV{'request.state'} eq 'published') {
- if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
- my $displayfile=$request->uri;
- $displayfile=~s/^\/[^\/]*//;
- $result='<html><body bgcolor="#FFFFFF"><h3>'.$displayfile.
- '</h3></body></html>';
- $result=&inserteditinfo($result,$filecontents);
+ unless ($ENV{'request.state'} eq 'published') {
+ if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
+ my $displayfile=$request->uri;
+ $displayfile=~s/^\/[^\/]*//;
+ $result='<html><body bgcolor="#FFFFFF"><h3>'.$displayfile.
+ '</h3></body></html>';
+ $result=&inserteditinfo($result,$filecontents);
+ }
}
- }
-
- writeallows($request->uri);
-
- $request->print($result);
-
- return OK;
+
+ writeallows($request->uri);
+
+
+ $request->print($result);
+
+ return OK;
+}
+
+sub display_title {
+ my $result;
+ if ($ENV{'request.state'} eq 'construct') {
+ my $title=&Apache::lonnet::gettitle();
+ if (!defined($title) || $title eq '') {
+ $title = $ENV{'request.filename'};
+ $title = substr($title, rindex($title, '/') + 1);
+ }
+ $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA Construction Space';</script>";
+ }
+ return $result;
}
sub debug {
@@ -1281,8 +1326,11 @@ sub error {
sub warning {
$warningcount++;
- if ($ENV{'request.state'} eq 'construct') {
- print "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n";
+
+ if ($ENV{'form.grade_target'} ne 'tex') {
+ if ($ENV{'request.state'} eq 'construct' || $Apache::lonxml::debug) {
+ print "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n";
+ }
}
}
@@ -1391,10 +1439,11 @@ sub description {
# calls to lonnet functions for this setup.
# - looks for form.grade_ parameters
sub whichuser {
+ my ($passedsymb)=@_;
my ($symb,$courseid,$domain,$name,$publicuser);
if (defined($ENV{'form.grade_symb'})) {
my $tmp_courseid=$ENV{'form.grade_courseid'};
- my $allowed=&Apache::lonnet::allowed('mgr',$tmp_courseid);
+ my $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid);
if ($allowed) {
$symb=$ENV{'form.grade_symb'};
$courseid=$ENV{'form.grade_courseid'};
@@ -1402,7 +1451,11 @@ sub whichuser {
$name=$ENV{'form.grade_username'};
}
} else {
- $symb=&Apache::lonnet::symbread();
+ if (!$passedsymb) {
+ $symb=&Apache::lonnet::symbread();
+ } else {
+ $symb=$passedsymb;
+ }
$courseid=$ENV{'request.course.id'};
$domain=$ENV{'user.domain'};
$name=$ENV{'user.name'};