--- loncom/xml/lonxml.pm 2007/02/23 00:39:35 1.440
+++ loncom/xml/lonxml.pm 2007/09/12 10:58:18 1.460
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# XML Parser Module
#
-# $Id: lonxml.pm,v 1.440 2007/02/23 00:39:35 albertel Exp $
+# $Id: lonxml.pm,v 1.460 2007/09/12 10:58:18 foxr Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -42,6 +42,7 @@ package Apache::lonxml;
use vars
qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount);
use strict;
+use LONCAPA;
use HTML::LCParser();
use HTML::TreeBuilder();
use HTML::Entities();
@@ -124,6 +125,9 @@ $evaluate = 1;
# stores the list of active tag namespaces
@namespace=();
+# stores all Scrit Vars displays for later showing
+my @script_var_displays=();
+
# a pointer the the Apache request object
$Apache::lonxml::request='';
@@ -131,6 +135,13 @@ $Apache::lonxml::request='';
$Apache::lonxml::counter=1;
$Apache::lonxml::counter_changed=0;
+# A count of bubble lines needed for a set.. and a check on
+# whether or not it is ever used too:
+
+$Apache::lonxml::bubble_line_counter = 1;
+$Apache::lonxml::bubble_line_counter_changed = 0;
+
+
#internal check on whether to look at style defs
$Apache::lonxml::usestyle=1;
@@ -315,13 +326,14 @@ sub xmlparse {
}
}
}
- } elsif ($env{'construct.style'} && ($env{'request.state'} eq 'construct')) {
+ } elsif ($env{'construct.style'}
+ && ($env{'request.state'} eq 'construct')) {
my $location=&Apache::lonnet::filelocation('',$env{'construct.style'});
my $styletext=&Apache::lonnet::getfile($location);
- if ($styletext ne '-1') {
- %style_for_target = (%style_for_target,
- &Apache::style::styleparser($target,$styletext));
- }
+ if ($styletext ne '-1') {
+ %style_for_target = (%style_for_target,
+ &Apache::style::styleparser($target,$styletext));
+ }
}
#&printalltags();
my @pars = ();
@@ -353,9 +365,17 @@ sub xmlparse {
}
&do_registered_ssi();
if ($Apache::lonxml::counter_changed) { &store_counter() }
+ if ($Apache::lonxml::bubble_line_counter_changed) {
+ &store_bubble_counter();
+ }
&clean_safespace($safeeval);
+ if (@script_var_displays) {
+ $finaloutput .= join('',@script_var_displays);
+ undef(@script_var_displays);
+ }
+
if ($env{'form.return_only_error_and_warning_counts'}) {
return "$errorcount:$warningcount";
}
@@ -585,17 +605,23 @@ sub callsub {
} elsif ($token->[0] eq 'E') {
$currentstring = &Apache::edit::tag_end($target,$token);
}
- } elsif ($target eq 'modified') {
+ }
+ }
+ if ($target eq 'modified' && $nodefault eq '') {
+ if ($currentstring eq '') {
+ if ($token->[0] eq 'S') {
+ $currentstring = $token->[4];
+ } elsif ($token->[0] eq 'E') {
+ $currentstring = $token->[2];
+ } else {
+ $currentstring = $token->[2];
+ }
+ }
if ($token->[0] eq 'S') {
- $currentstring = $token->[4];
- $currentstring.=&Apache::edit::handle_insert();
+ $currentstring.=&Apache::edit::handle_insert();
} elsif ($token->[0] eq 'E') {
- $currentstring = $token->[2];
- $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
- } else {
- $currentstring = $token->[2];
+ $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
}
- }
}
}
use strict 'refs';
@@ -611,8 +637,10 @@ sub setup_globals {
$Apache::lonxml::default_homework_loaded=0;
$Apache::lonxml::usestyle=1;
&init_counter();
+ &init_bubble_counter();
@Apache::lonxml::pwd=();
@Apache::lonxml::extlinks=();
+ @script_var_displays=();
@Apache::lonxml::ssi_info=();
$Apache::lonxml::post_evaluate=1;
$Apache::lonxml::warnings_error_header='';
@@ -783,6 +811,7 @@ sub init_safespace {
$safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
$safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
$safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
+ $safehole->wrap(\&Apache::loncommon::languages,$safeeval,'&languages');
$safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
$safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
$safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
@@ -891,6 +920,9 @@ sub endredirection {
}
pop @Apache::lonxml::outputstack;
}
+sub in_redirection {
+ return ($Apache::lonxml::redirection > 0)
+}
sub end_tag {
my ($tagstack,$parstack,$token)=@_;
@@ -951,8 +983,8 @@ sub decreasedepth {
sub get_id {
my ($parstack,$safeeval)=@_;
my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
- if ($env{'request.state'} eq 'construct' && $id =~ /(\.|_)/) {
- &error(&mt("IDs are not allowed to contain "<tt>_</tt>" or "<tt>.</tt>""));
+ if ($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>'));
}
if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
return $id;
@@ -990,6 +1022,133 @@ sub get_all_text_unbalanced {
return $result
}
+
+=pod
+
+For bubble grading mode and exam bubble printing mode, the tracking of
+the current 'bubble line number' is stored in the %env element
+'form.bubble_line_counter', and is modifed and handled by
+the following routines.
+
+The value of it is stored in $Apache:lonxml::bubble_line_counter when
+live and stored back to env after done.
+
+=item &increment_bubble_counter($increment)
+
+Increments the bubble line counter by the optional value
+$increment (defaults to 1).
+
+ 'bad increments' are also treated as an increment of 1.
+('bad' means <=0).
+
+=cut
+
+sub increment_bubble_counter {
+ my ($increment) = @_;
+ if (!defined($increment) || $increment le 0) {
+ $increment = 1;
+ }
+ $Apache::lonxml::bubble_line_counter += $increment;
+ $Apache::lonxml::bubble_line_counter_changed = 1;
+}
+=pod
+
+=item &init_bubble_counter
+
+Initialize the internal counter to the env. variable
+or 1 if we are inconstruction space, or if the env var
+is not defined.
+
+=cut
+
+sub init_bubble_counter {
+ if ($env{'request.state'} eq 'construct') {
+ $Apache::lonxml::bubble_line_counter = 1;
+ $Apache::lonxml::bubble_line_counter_changed = 1;
+ } elsif (defined($env{'form.bubble_line_counter'})) {
+ $Apache::lonxml::bubble_line_counter =
+ $env{'form.bubble_line_counter'};
+ $Aapche::lonxml::bubble_line_counter_changed = 0;
+ } else {
+ $Apache::lonxml::bubble_line_counter = 1;
+ $Apache::lonxml::bubble_line_counter_changed = 1;
+ }
+
+}
+
+=pod
+
+=item store_bubble_counter;
+
+ Store the bubble line counter in its env var. The changed flag
+ is reset indicating the env is up to date with respect to the
+ local variable.
+=cut
+
+sub store_bubble_counter {
+ &Apache::lonnet::appenv(('form.bubble.counter' =>
+ $Apache::lonxml::bubble_line_counter));
+ $Apache::lonnet::bubble_line_counter_changed = 0;
+
+ return '';
+}
+
+=pod
+
+The next set of subs allow a single level of save/restore for the
+bubble_line_counter.
+
+=cut
+
+{
+ my $bubble_counter_state;
+
+ sub clear_bubble_counter {
+ undef($bubble_counter_state);
+ &Apache::lonnet::delenv('form.bubble_line_counter');
+ &Apache::lonxml::init_bubble_counter();
+ &Apache::lonxml::store_bubble_counter();
+ }
+
+ sub remember_bubble_counter {
+ &Apache::lonnet::transfer_profile_to_env(undef,undef, 1);
+ $bubble_counter_state = $env{'form.bubble_line_counter'};
+ }
+
+ sub restore_bubble_counter {
+ if (defined($bubble_counter_state)) {
+ &Apache::lonnet::appenv(('form.bubble_line_counter' =>
+ $bubble_counter_state));
+ }
+ }
+
+ sub get_bubble_counter {
+ if ($Apache::lonxml::bubble_line_counter_changed) {
+ &store_bubble_counter();
+ }
+ &Apache::lonnet::transfer_profile_to_env(undef, undef, 1);
+ return $env{'form.bubble_line_counter'};
+ }
+}
+
+=pod
+
+For bubble grading mode and exam bubble printing mode, the tracking of
+the current 'bubble line number' is stored in the %env element
+'form.counter', and is modifed and handled by the following routines.
+
+The value of it is stored in $Apache:lonxml::counter when live and
+stored back to env after done.
+
+=item &increment_counter($increment);
+
+Increments the internal counter environment variable a specified amount
+
+Optional Arguments:
+ $increment - amount to increment by (defaults to 1)
+
+=cut
+
sub increment_counter {
my ($increment) = @_;
if (defined($increment) && $increment gt 0) {
@@ -1000,6 +1159,14 @@ sub increment_counter {
$Apache::lonxml::counter_changed=1;
}
+=pod
+
+=item &init_counter;
+
+Initialize the internal counter environment variable
+
+=cut
+
sub init_counter {
if ($env{'request.state'} eq 'construct') {
$Apache::lonxml::counter=1;
@@ -1038,11 +1205,13 @@ sub store_counter {
&Apache::lonnet::appenv(('form.counter' => $state));
}
}
+
sub get_problem_counter {
if ($Apache::lonxml::counter_changed) { &store_counter() }
&Apache::lonnet::transfer_profile_to_env(undef,undef,1);
return $env{'form.counter'};
}
+
}
sub get_all_text {
@@ -1202,7 +1371,7 @@ sub writeallows {
my %httpref=();
foreach (@extlinks) {
$httpref{'httpref.'.
- &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl;
+ &Apache::lonnet::hreflocation($thisdir,&unescape($_))}=$thisurl;
}
@extlinks=();
&Apache::lonnet::appenv(%httpref);
@@ -1221,6 +1390,12 @@ sub do_registered_ssi {
&Apache::lonnet::ssi($url,%form);
}
}
+
+sub add_script_result {
+ my ($display) = @_;
+ push(@script_var_displays, $display);
+}
+
#
# Afterburner handles anchors, highlights and links
#
@@ -1301,17 +1476,20 @@ SIMPLECONTENT
sub inserteditinfo {
- my ($result,$filecontents,$filetype)=@_;
+ my ($filecontents,$filetype)=@_;
$filecontents = &HTML::Entities::encode($filecontents,'<>&"');
# my $editheader='<a href="#editsection">Edit below</a><hr />';
my $xml_help = '';
my $initialize='';
- if ($filetype eq 'html') {
- my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
- $initialize=&Apache::lonhtmlcommon::spellheader();
- if (!&Apache::lonhtmlcommon::htmlareablocked() &&
- &Apache::lonhtmlcommon::htmlareabrowser()) {
- $initialize.=(<<FULLPAGE);
+ my $textarea_id = 'filecont';
+ my ($add_to_onload, $add_to_onresize);
+ my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
+ $initialize=&Apache::lonhtmlcommon::spellheader();
+ if ($filetype eq 'html'
+ && (!&Apache::lonhtmlcommon::htmlareablocked() &&
+ &Apache::lonhtmlcommon::htmlareabrowser())) {
+ $textarea_id .= '_htmlarea';
+ $initialize.=(<<FULLPAGE);
<script type="text/javascript">
$addbuttons
@@ -1321,21 +1499,34 @@ $addbuttons
var editor=new HTMLArea("filecont",config);
editor.registerPlugin(FullPage);
editor.generate();
+ setTimeout(
+ function () {
+ HTMLArea._addEvents(editor._doc,
+ ["keypress","mousedown"], unClean);
+ editor._iframe.id = '$textarea_id';
+ resize_textarea('$textarea_id','LC_aftertextarea');
+ },300);
}
</script>
FULLPAGE
- } else {
- $initialize.=(<<FULLPAGE);
+ } else {
+ $initialize.=(<<FULLPAGE);
<script type="text/javascript">
$addbuttons
function initDocument() {
+ resize_textarea('$textarea_id','LC_aftertextarea');
}
</script>
FULLPAGE
- }
- $result=~s/\<body([^\>]*)\>/\<body onload="initDocument()" $1\>/i;
+ }
+
+ $add_to_onload = 'initDocument();';
+ $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');";
+
+ if ($filetype eq 'html') {
$xml_help=&Apache::loncommon::helpLatexCheatsheet();
}
+
my $cleanbut = '';
my $titledisplay=&display_title();
@@ -1347,29 +1538,31 @@ FULLPAGE
my $buttons=(<<BUTTONS);
$cleanbut
<input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
-<input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" /><hr>
+<input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" /><hr />
<input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
<input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
BUTTONS
$buttons.=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
+ my $textarea_events = &Apache::edit::element_change_detection();
+ my $form_events = &Apache::edit::form_change_detection();
my $editfooter=(<<ENDFOOTER);
$initialize
<hr />
<a name="editsection" />
-<form method="post" name="xmledit">
+<form $form_events method="post" name="xmledit">
$xml_help
<input type="hidden" name="editmode" value="$lt{'ed'}" />
$buttons<br />
-<textarea style="width:100%" cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
+<textarea $textarea_events style="width:100%" cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
+<div id="LC_aftertextarea">
<br />$buttons
<br />
-</form>
$titledisplay
+</div>
+</form>
</body>
ENDFOOTER
-# $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
- $result=~s/(\<\/body\>)/$editfooter/is;
- return $result;
+ return ($editfooter,$add_to_onload,$add_to_onresize);;
}
sub get_target {
@@ -1465,38 +1658,64 @@ 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);
- undef($Apache::lonhomework::parsing_a_task);
+ # .html files may contain <problem> or <Task> need to clean
+ # up if it did
+ &Apache::structuretags::reset_problem_globals();
+ &Apache::lonhomework::finished_parsing();
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['rawmode']);
if ($env{'form.rawmode'}) { $result = $filecontents; }
+ if ($filetype eq 'sty') {
+ my $controls =
+ ($env{'request.state'} eq 'construct') ? &Apache::londefdef::edit_controls()
+ : '';
+ my %options = ('bgcolor' => '#FFFFFF');
+ $result =
+ &Apache::loncommon::start_page(undef,undef,\%options).
+ $controls.
+ $result.
+ &Apache::loncommon::end_page();
+ }
}
}
-
+
#
# Edit action? Insert editing commands
#
unless ($env{'request.state'} eq 'published') {
if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
- {
+ {
+ my ($edit_info, $add_to_onload, $add_to_onresize)=
+ &inserteditinfo($filecontents,$filetype);
+
my $displayfile=$request->uri;
$displayfile=~s/^\/[^\/]*//;
- my %options = ();
+ my %options =
+ ('add_entries' =>
+ {'onresize' => $add_to_onresize,
+ 'onload' => $add_to_onload, });
+
if ($env{'environment.remote'} ne 'off') {
$options{'bgcolor'} = '#FFFFFF';
+ $options{'only_body'} = 1;
}
- my $start_page = &Apache::loncommon::start_page(undef,undef,
+ my $js =
+ &Apache::edit::js_change_detection().
+ &Apache::loncommon::resize_textarea_js();
+ my $start_page = &Apache::loncommon::start_page(undef,$js,
\%options);
$result=$start_page.
&Apache::lonxml::message_location().'<h3>'.
$displayfile.
- '</h3>'.&Apache::loncommon::end_page();
- $result=&inserteditinfo($result,$filecontents,$filetype);
+ '</h3>'.
+ $edit_info.
+ &Apache::loncommon::end_page();
}
}
if ($filetype eq 'html') { &writeallows($request->uri); }
-
&Apache::lonxml::add_messages(\$result);
$request->print($result);
@@ -1545,12 +1764,28 @@ sub show_error_warn_msg {
}
sub error {
+ my @errors = @_;
+
$errorcount++;
+
+ if (defined($Apache::inputtags::part)) {
+ if ( @Apache::inputtags::response ) {
+ push(@errors,
+ &mt("This error occurred while processing response [_1] in part [_2]",
+ $Apache::inputtags::response[-1],
+ $Apache::inputtags::part));
+ } else {
+ push(@errors,
+ &mt("This error occurred while processing part [_1]",
+ $Apache::inputtags::part));
+ }
+ }
+
if ( &show_error_warn_msg() ) {
# If printing in construction space, put the error inside <pre></pre>
push(@Apache::lonxml::error_messages,
$Apache::lonxml::warnings_error_header.
- "<b>ERROR:</b>".join("<br />\n",@_)."<br />\n");
+ "<b>ERROR:</b>".join("<br />\n",@errors)."<br />\n");
$Apache::lonxml::warnings_error_header='';
} else {
my $errormsg;
@@ -1560,7 +1795,10 @@ sub error {
$errormsg=&mt("An error occured while processing this resource. The author has been notified.");
}
my $host=$Apache::lonnet::perlvar{'lonHostID'};
- my $msg = join('<br />',(@_,"The error occurred on host <tt>$host</tt>"));
+ push(@errors, "The error occurred on host <tt>$host</tt>");
+
+ my $msg = join('<br />', @errors);
+
#notify author
&Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
#notify course
@@ -1692,50 +1930,11 @@ sub get_param_var {
}
}
-sub register_insert_tab {
- my @data = split /\n/, &Apache::lonnet::getfile('/home/httpd/lonTabs/insertlist.tab');
- my $i;
- my $tagnum=0;
- my @order;
- for ($i=0;$i < $#data; $i++) {
- my $line = $data[$i];
- if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; }
- if ( $line =~ /TABLE/ ) { last; }
- my ($tag,$descrip,$color,$function,$show,$helpfile,$helpdesc) = split(/,/, $line);
- if ($tag) {
- $insertlist{"$tagnum.tag"} = $tag;
- $insertlist{"$tag.description"} = $descrip;
- $insertlist{"$tag.color"} = $color;
- $insertlist{"$tag.function"} = $function;
- if (!defined($show)) { $show='yes'; }
- $insertlist{"$tag.show"}= $show;
- $insertlist{"$tag.helpfile"} = $helpfile;
- $insertlist{"$tag.helpdesc"} = $helpdesc;
- $insertlist{"$tag.num"}=$tagnum;
- $tagnum++;
- }
- }
- $i++; #skipping TABLE line
- $tagnum = 0;
- for (;$i < $#data;$i++) {
- my $line = $data[$i];
- my ($mnemonic,@which) = split(/ +/,$line);
- my $tag = $insertlist{"$tagnum.tag"};
- for (my $j=0;$j <=$#which;$j++) {
- if ( $which[$j] eq 'Y' ) {
- if ($insertlist{"$j.show"} ne 'no') {
- push(@{ $insertlist{"$tag.which"} },$insertlist{"$j.tag"});
- }
- }
- }
- $tagnum++;
- }
-}
-
sub register_insert_xml {
my $parser = HTML::LCParser->new($Apache::lonnet::perlvar{'lonTabDir'}
.'/insertlist.xml');
my ($tagnum,$in_help)=(0,0);
+ my @alltags;
my $tag;
while (my $token = $parser->get_token()) {
if ($token->[0] eq 'S') {
@@ -1744,6 +1943,7 @@ sub register_insert_xml {
$tag = $token->[2]{'name'};
$insertlist{"$tagnum.tag"} = $tag;
$insertlist{"$tag.num"} = $tagnum;
+ push(@alltags,$tag);
} elsif ($in_help && $token->[1] eq 'file') {
$key = $tag.'.helpfile';
} elsif ($in_help && $token->[1] eq 'description') {
@@ -1757,11 +1957,7 @@ sub register_insert_xml {
} elsif ($token->[1] eq 'help') {
$in_help=1;
} elsif ($token->[1] eq 'allow') {
- my $allow = $parser->get_text();
- foreach my $element (split(',',$allow)) {
- $element =~ s/(^\s*|\s*$ )//gx;
- push(@{ $insertlist{$tag.'.which'} },$element);
- }
+ $key = $tag.'.allow';
}
if (defined($key)) {
$insertlist{$key} = $parser->get_text();
@@ -1776,12 +1972,22 @@ sub register_insert_xml {
}
}
}
+
+ # parse the allows and ignore tags set to <show>no</show>
+ foreach my $tag (@alltags) {
+ next if (!exists($insertlist{"$tag.allow"}));
+ my $allow = $insertlist{"$tag.allow"};
+ foreach my $element (split(',',$allow)) {
+ $element =~ s/(^\s*|\s*$ )//gx;
+ if (!exists($insertlist{"$element.show"})
+ || $insertlist{"$element.show"} ne 'no') {
+ push(@{ $insertlist{$tag.'.which'} },$element);
+ }
+ }
+ }
}
sub register_insert {
-# ®ister_insert_tab(@_);
-# &dump_insertlist('1');
-# undef(%insertlist);
return ®ister_insert_xml(@_);
# &dump_insertlist('2');
}