--- loncom/xml/lonxml.pm 2002/01/09 09:50:59 1.148
+++ loncom/xml/lonxml.pm 2007/02/18 02:10:04 1.439
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# XML Parser Module
#
-# $Id: lonxml.pm,v 1.148 2002/01/09 09:50:59 albertel Exp $
+# $Id: lonxml.pm,v 1.439 2007/02/18 02:10:04 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -36,39 +36,23 @@
# The C source of the Code may not be distributed by the Licensee
# to any other parties under any circumstances.
#
-# last modified 06/26/00 by Alexander Sakharuk
-# 11/6 Gerd Kortemeyer
-# 6/1/1 Gerd Kortemeyer
-# 2/21,3/13 Guy
-# 3/29,5/4 Gerd Kortemeyer
-# 5/10 Scott Harrison
-# 5/26 Gerd Kortemeyer
-# 5/27 H. K. Ng
-# 6/2,6/3,6/8,6/9 Gerd Kortemeyer
-# 6/12,6/13 H. K. Ng
-# 6/16 Gerd Kortemeyer
-# 7/27 H. K. Ng
-# 8/7,8/9,8/10,8/11,8/15,8/16,8/17,8/18,8/20,8/23,8/24 Gerd Kortemeyer
-# Guy Albertelli
-# 9/26 Gerd Kortemeyer
-# Dec Guy Albertelli
-# YEAR=2002
-# 1/1 Gerd Kortemeyer
-# 1/2 Matthew Hall
-# 1/3 Gerd Kortemeyer
-#
+
package Apache::lonxml;
use vars
-qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace);
+qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount);
use strict;
-use HTML::TokeParser;
-use HTML::TreeBuilder;
-use Safe;
-use Safe::Hole;
-use Math::Cephes qw(:trigs :hypers :bessels erf erfc);
-use Math::Random qw(:all);
-use Opcode;
+use HTML::LCParser();
+use HTML::TreeBuilder();
+use HTML::Entities();
+use Safe();
+use Safe::Hole();
+use Math::Cephes();
+use Math::Random();
+use Opcode();
+use POSIX qw(strftime);
+use Time::HiRes qw( gettimeofday tv_interval );
+use Symbol();
sub register {
my ($space,@taglist) = @_;
@@ -89,20 +73,32 @@ sub deregister {
}
use Apache::Constants qw(:common);
-use Apache::lontexconvert;
-use Apache::style;
-use Apache::run;
-use Apache::londefdef;
-use Apache::scripttag;
-use Apache::edit;
+use Apache::lontexconvert();
+use Apache::style();
+use Apache::run();
+use Apache::londefdef();
+use Apache::scripttag();
+use Apache::languagetags();
+use Apache::edit();
+use Apache::inputtags();
+use Apache::outputtags();
use Apache::lonnet;
-use Apache::File;
-use Apache::loncommon;
+use Apache::File();
+use Apache::loncommon();
+use Apache::lonfeedback();
+use Apache::lonmsg();
+use Apache::loncacc();
+use Apache::lonmaxima();
+use Apache::lonlocal;
#================================================== Main subroutine: xmlparse
#debugging control, to turn on debugging modify the correct handler
$Apache::lonxml::debug=0;
+# keeps count of the number of warnings and errors generated in a parse
+$warningcount=0;
+$errorcount=0;
+
#path to the directory containing the file currently being processed
@pwd=();
@@ -128,87 +124,72 @@ $evaluate = 1;
# stores the list of active tag namespaces
@namespace=();
-# has the dynamic menu been updated to know about this resource
-$Apache::lonxml::registered=0;
+# a pointer the the Apache request object
+$Apache::lonxml::request='';
-sub xmlbegin {
- my $output='';
- if ($ENV{'browser.mathml'}) {
- $output=''
- .''
- .']>'
- .'';
- } else {
- $output='';
- }
- return $output;
+# a problem number counter, and check on ether it is used
+$Apache::lonxml::counter=1;
+$Apache::lonxml::counter_changed=0;
+
+#internal check on whether to look at style defs
+$Apache::lonxml::usestyle=1;
+
+#locations used to store the parameter string for style substitutions
+$Apache::lonxml::style_values='';
+$Apache::lonxml::style_end_values='';
+
+#array of ssi calls that need to occur after we are done parsing
+@Apache::lonxml::ssi_info=();
+
+#should we do the postag variable interpolation
+$Apache::lonxml::post_evaluate=1;
+
+#a header message to emit in the case of any generated warning or errors
+$Apache::lonxml::warnings_error_header='';
+
+# Control whether or not LaTeX symbols should be substituted for their
+# \ style equivalents...this may be turned off e.g. in an verbatim
+# environment.
+
+$Apache::lonxml::substitute_LaTeX_symbols = 1; # Starts out on.
+
+sub enable_LaTeX_substitutions {
+ $Apache::lonxml::substitute_LaTeX_symbols = 1;
+}
+sub disable_LaTeX_substitutions {
+ $Apache::lonxml::substitute_LaTeX_symbols = 0;
}
sub xmlend {
- my $discussion='';
- if ($ENV{'request.course.id'}) {
- my $crs='/'.$ENV{'request.course.id'};
- if ($ENV{'request.course.sec'}) {
- $crs.='_'.$ENV{'request.course.sec'};
- }
- $crs=~s/\_/\//g;
- my $seeid=&Apache::lonnet::allowed('rin',$crs);
- my $symb=&Apache::lonnet::symbread();
- if ($symb) {
- my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
- $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
- $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
- if ($contrib{'version'}) {
- $discussion.=
- 'Course Discussion of Resource ';
- my $idx;
- for ($idx=1;$idx<=$contrib{'version'};$idx++) {
- my $hidden=($contrib{'hidden'}=~/\.$idx\./);
- unless (($hidden) && (!$seeid)) {
- my $message=$contrib{$idx.':message'};
- $message=~s/\n/\'.$message.' ';
- }
- my $sender='Anonymous';
- if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
- $sender=$contrib{$idx.':sendername'}.' at '.
- $contrib{$idx.':senderdomain'};
- if ($contrib{$idx.':anonymous'}) {
- $sender.=' (anonymous)';
- }
- if ($seeid) {
- if ($hidden) {
- $sender.=' Make Visible ';
- } else {
- $sender.=' Hide ';
- }
- }
- }
- $discussion.=''.$sender.' ('.
- localtime($contrib{$idx.':timestamp'}).
- '):
'.$message.
- ' ';
- }
- }
- }
- $discussion.='\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document} ';
+ &Apache::lonxml::newparser($parser,\$discussion,'');
+ return '';
}
- return $discussion.'';
+
+ return $discussion;
}
sub tokeninputfield {
my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
$defhost=~tr/a-z/A-Z/;
return (<
+';
- }
- if ($Apache::lonxml::registered && !$forcereg) { return ''; }
- $Apache::lonxml::registered=1;
- if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
- my $hwkadd='';
- if ($ENV{'REQUEST_URI'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
- if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
- $hwkadd.=(<
-// BEGIN LON-CAPA Internal
-
- function LONCAPAreg() {
- menu=window.open("","LONCAPAmenu");
- menu.clearTimeout(menu.menucltim);
- menu.currentURL=window.location.pathname;
- menu.currentStale=0;
- menu.clearbut(3,1);
- menu.switchbutton
- (6,3,'catalog.gif','catalog','info','catalog_info()');
- menu.switchbutton
- (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)');
- menu.switchbutton
- (8,2,'fdbk.gif','feedback','on this','gopost("/adm/feedback",currentURL)');
- menu.switchbutton
- (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)');
- menu.switchbutton
- (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)');
- menu.switchbutton
- (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)');
- menu.switchbutton
- (9,1,'sbkm.gif','set','bookmark','set_bookmark()');
- menu.switchbutton
- (9,2,'vbkm.gif','view','bookmark','edit_bookmarks()');
- menu.switchbutton
- (9,3,'anot.gif','anno-','tations','annotate()');
- $hwkadd
- }
-
- function LONCAPAstale() {
- menu=window.open("","LONCAPAmenu");
- menu.currentStale=1;
- menu.switchbutton
- (3,1,'reload.gif','return','location','go(currentURL)');
- menu.clearbut(7,1);
- menu.clearbut(7,2);
- menu.clearbut(7,3);
- menu.menucltim=menu.setTimeout(
- 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
- 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3)',
- 2000);
-
- }
-
-// END LON-CAPA Internal
-
-ENDREGTHIS
-
- } else {
- return (<
-// BEGIN LON-CAPA Internal
-
- function LONCAPAreg() {
- menu=window.open("","LONCAPAmenu");
- menu.currentStale=1;
- menu.clearbut(2,1);
- menu.clearbut(2,3);
- menu.clearbut(8,1);
- menu.clearbut(8,2);
- menu.clearbut(8,3);
- if (menu.currentURL) {
- menu.switchbutton
- (3,1,'reload.gif','return','location','go(currentURL)');
- } else {
- menu.clearbut(3,1);
- }
- }
-
- function LONCAPAstale() {
- }
-
-// END LON-CAPA Internal
-
-ENDDONOTREGTHIS
-
- }
-}
-
-sub loadevents() {
- return 'LONCAPAreg();';
-}
-
-sub unloadevents() {
- return 'LONCAPAstale();';
-}
-
sub printalltags {
my $temp;
foreach $temp (sort keys %Apache::lonxml::alltags) {
@@ -447,12 +289,43 @@ sub printalltags {
}
sub xmlparse {
- my ($target,$content_file_string,$safeinit,%style_for_target) = @_;
+ my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
+
+ &setup_globals($request,$target);
+ &Apache::inputtags::initialize_inputtags();
+ &Apache::bridgetask::initialize_bridgetask();
+ &Apache::outputtags::initialize_outputtags();
+ &Apache::edit::initialize_edit();
+ &Apache::londefdef::initialize_londefdef();
- &setup_globals($target);
- #&printalltags();
+#
+# do we have a course style file?
+#
+
+ if ($env{'request.course.id'} && $env{'request.state'} ne 'construct') {
+ my $bodytext=
+ $env{'course.'.$env{'request.course.id'}.'.default_xml_style'};
+ if ($bodytext) {
+ foreach my $file (split(',',$bodytext)) {
+ my $location=&Apache::lonnet::filelocation('',$file);
+ my $styletext=&Apache::lonnet::getfile($location);
+ if ($styletext ne '-1') {
+ %style_for_target = (%style_for_target,
+ &Apache::style::styleparser($target,$styletext));
+ }
+ }
+ }
+ } elsif ($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));
+ }
+ }
+#&printalltags();
my @pars = ();
- my $pwd=$ENV{'request.filename'};
+ my $pwd=$env{'request.filename'};
$pwd =~ s:/[^/]*$::;
&newparser(\@pars,\$content_file_string,$pwd);
@@ -463,52 +336,95 @@ sub xmlparse {
($target, my @tenta) = split('&&',$target);
- my @stack = ();
+ my @stack = ();
my @parstack = ();
- &initdepth;
-
+ &initdepth();
+ &init_alarm();
my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
- $safeeval,\%style_for_target);
- if ($ENV{'request.uri'}) {
- &writeallows($ENV{'request.uri'});
- }
- return $finaloutput;
-}
+ $safeeval,\%style_for_target,1);
-sub htmlclean {
- my ($raw,$full)=@_;
-
- my $tree = HTML::TreeBuilder->new;
- $tree->ignore_unknown(0);
+ if (@stack) {
+ &warning("At end of file some tags were still left unclosed, ".
+ '<'.join('> , <',reverse(@stack)).
+ '> ');
+ }
+ if ($env{'request.uri'}) {
+ &writeallows($env{'request.uri'});
+ }
+ &do_registered_ssi();
+ if ($Apache::lonxml::counter_changed) { &store_counter() }
- $tree->parse($raw);
+ &clean_safespace($safeeval);
- my $output= $tree->as_HTML(undef,' ');
+ if ($env{'form.return_only_error_and_warning_counts'}) {
+ return "$errorcount:$warningcount";
+ }
+ return $finaloutput;
+}
- $output=~s/\<(br|hr|img|meta|allow)([^\>\/]*)\>/\<$1$2 \/\>/gis;
- $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
- unless ($full) {
- $output=~s/\<[\/]*(body|head|html)\>//gis;
+sub latex_special_symbols {
+ my ($string,$where)=@_;
+ #
+ # If e.g. in verbatim mode, then don't substitute.
+ # but return original string.
+ #
+ if (!($Apache::lonxml::substitute_LaTeX_symbols)) {
+ return $string;
+ }
+ if ($where eq 'header') {
+ $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10.
+ $string =~ s/(\$|%|\{|\})/\\$1/g;
+ $string=&Apache::lonprintout::character_chart($string);
+ # any & or # leftover should be safe to just escape
+ $string=~s/([^\\])\&/$1\\\&/g;
+ $string=~s/([^\\])\#/$1\\\#/g;
+ $string =~ s/_/\\_/g; # _ -> \_
+ $string =~ s/\^/\\\^{}/g; # ^ -> \^{}
+ } else {
+ $string=~s/\\/\\ensuremath{\\backslash}/g;
+ $string=~s/\\\%|\%/\\\%/g;
+ $string=~s/\\{|{/\\{/g;
+ $string=~s/\\}|}/\\}/g;
+ $string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
+ $string=~s/\\\$|\$/\\\$/g;
+ $string=~s/\\\_|\_/\\\_/g;
+ $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
+ $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
+ $string=&Apache::lonprintout::character_chart($string);
+ # any & or # leftover should be safe to just escape
+ $string=~s/\\\&|\&/\\\&/g;
+ $string=~s/\\\#|\#/\\\#/g;
+ $string=~s/\|/\$\\mid\$/g;
+#single { or } How to escape?
}
-
- $tree = $tree->delete;
-
- return $output;
+ return $string;
}
sub inner_xmlparse {
- my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
+ my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target,$start)=@_;
my $finaloutput = '';
my $result;
my $token;
+ my $dontpop=0;
+ my $startredirection = $Apache::lonxml::redirection;
while ( $#$pars > -1 ) {
while ($token = $$pars['-1']->get_token) {
- if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
+ if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
if ($metamode<1) {
- $result=$token->[1];
+ my $text=$token->[1];
+ if ($token->[0] eq 'C' && $target eq 'tex') {
+ $text = '';
+# $text = '%'.$text."\n";
+ }
+ $result.=$text;
+ }
+ } elsif (($token->[0] eq 'D')) {
+ if ($metamode<1 && $target eq 'web') {
+ my $text=$token->[1];
+ $result.=$text;
}
} elsif ($token->[0] eq 'PI') {
- if ($metamode<1) {
+ if ($metamode<1 && $target eq 'web') {
$result=$token->[2];
}
} elsif ($token->[0] eq 'S') {
@@ -517,142 +433,105 @@ sub inner_xmlparse {
# add parameters list to another stack
push (@$parstack,&parstring($token));
&increasedepth($token);
- if (exists $$style_for_target{$token->[1]}) {
- if ($Apache::lonxml::redirection) {
- $Apache::lonxml::outputstack['-1'] .=
- &recurse($$style_for_target{$token->[1]},$target,$safeeval,
- $style_for_target,@$parstack);
- } else {
- $finaloutput .= &recurse($$style_for_target{$token->[1]},$target,
- $safeeval,$style_for_target,@$parstack);
- }
+ if ($Apache::lonxml::usestyle &&
+ exists($$style_for_target{$token->[1]})) {
+ $Apache::lonxml::usestyle=0;
+ my $string=$$style_for_target{$token->[1]}.
+ '
- if ( $partstring ne "" ) {
- if ( $#parstack > -1 ) {
- if ( $#innerparstack > -1 ) {
- $decls= $parstack[$#parstack].$innerparstack[$#innerparstack];
- } else {
- $decls= $parstack[$#parstack];
- }
- } else {
- if ( $#innerparstack > -1 ) {
- $decls=$innerparstack[$#innerparstack];
- } else {
- $decls='';
- }
- }
- $output .= &Apache::run::evaluate($partstring,$safeeval,$decls);
- $partstring = '';
- }
- if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack;
- &decreasedepth($tokenpat);}
- }
- pop @pat;
- pop @Apache::lonxml::pwd;
- }
- &Apache::lonxml::debug("Exiting Recursing");
- return $output;
-}
-
+##
+## Looks to see if there is a subroutine defined for this tag. If so, call it,
+## otherwise do not call it as we do not know what it is.
+##
sub callsub {
my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $currentstring='';
@@ -661,6 +540,8 @@ sub callsub {
my $sub1;
no strict 'refs';
my $tag=$token->[1];
+# get utterly rid of extended html tags
+ if ($tag=~/^x\-/i) { return ''; }
my $space=$Apache::lonxml::alltags{$tag}[-1];
if (!$space) {
$tag=~tr/A-Z/a-z/;
@@ -669,7 +550,6 @@ sub callsub {
}
my $deleted=0;
- $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
if (($token->[0] eq 'S') && ($target eq 'modified')) {
$deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
$parstack,$parser,$safeeval,
@@ -677,13 +557,17 @@ sub callsub {
}
if (!$deleted) {
if ($space) {
- #&Apache::lonxml::debug("Calling sub $sub in $space $metamode::")
+ {
+ my ($p) = $package ne "main" ? "$package\::" : "";
+ ($p .= $key) =~ s/::$//;
+ push(@subp,$p);
+ }
+ }
+ }
+ foreach my $p (@subp) {
+ delete_package_recurse($p);
+ }
+ Symbol::delete_package($package);
+}
+
+sub initialize_rndseed {
+ my ($safeeval)=@_;
+ my $rndseed;
+ my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
+ $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
+ my $safeinit = '$external::randomseed="'.$rndseed.'";';
+ &Apache::lonxml::debug("Setting rndseed to $rndseed");
+ &Apache::run::run($safeinit,$safeeval);
+}
+
+sub default_homework_load {
+ my ($safeeval)=@_;
+ &Apache::lonxml::debug('Loading default_homework');
+ my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
+ if ($default eq -1) {
+ &Apache::lonxml::error("Unable to find default_homework.lcpm ");
+ } else {
+ &Apache::run::run($default,$safeeval);
+ $Apache::lonxml::default_homework_loaded=1;
+ }
+}
+
+{
+ my $alarm_depth;
+ sub init_alarm {
+ alarm(0);
+ $alarm_depth=0;
+ }
+
+ sub start_alarm {
+ if ($alarm_depth<1) {
+ my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'});
+ if ($old) {
+ &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur.");
+ }
+ }
+ $alarm_depth++;
+ }
+
+ sub end_alarm {
+ $alarm_depth--;
+ if ($alarm_depth<1) { alarm(0); }
+ }
+}
+my $metamode_was;
sub startredirection {
- $Apache::lonxml::redirection++;
- push (@Apache::lonxml::outputstack, '');
+ if (!$Apache::lonxml::redirection) {
+ $metamode_was=$Apache::lonxml::metamode;
+ }
+ $Apache::lonxml::metamode=0;
+ $Apache::lonxml::redirection++;
+ push (@Apache::lonxml::outputstack, '');
}
sub endredirection {
- if (!$Apache::lonxml::redirection) {
- &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
- return '';
- }
- $Apache::lonxml::redirection--;
- pop @Apache::lonxml::outputstack;
+ if (!$Apache::lonxml::redirection) {
+ &Apache::lonxml::error("Endredirection was called before a startredirection, perhaps you have unbalanced tags. Some debugging information:".join ":",caller);
+ return '';
+ }
+ $Apache::lonxml::redirection--;
+ if (!$Apache::lonxml::redirection) {
+ $Apache::lonxml::metamode=$metamode_was;
+ }
+ pop @Apache::lonxml::outputstack;
}
sub end_tag {
@@ -837,118 +901,301 @@ sub end_tag {
sub initdepth {
@Apache::lonxml::depthcounter=();
- $Apache::lonxml::depth=-1;
- $Apache::lonxml::olddepth=-1;
+ undef($Apache::lonxml::last_depth_count);
}
+
+my @timers;
+my $lasttime;
+# @Apache::lonxml::depthcounter -> count of tags that exist so
+# far at each level
+# $Apache::lonxml::last_depth_count -> when ascending, need to
+# remember the count for the level below the current level (for
+# example going from 1_2 -> 1 -> 1_3 need to remember the 2 )
+
sub increasedepth {
my ($token) = @_;
- $Apache::lonxml::depth++;
- $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
- if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
- $Apache::lonxml::olddepth=$Apache::lonxml::depth;
- }
- my $curdepth=join('_',@Apache::lonxml::depthcounter);
- &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
+ push(@Apache::lonxml::depthcounter,$Apache::lonxml::last_depth_count+1);
+ undef($Apache::lonxml::last_depth_count);
+ my $time;
+ if ($Apache::lonxml::debug eq "1") {
+ push(@timers,[&gettimeofday()]);
+ $time=&tv_interval($lasttime);
+ $lasttime=[&gettimeofday()];
+ }
+ my $spacing=' 'x($#Apache::lonxml::depthcounter);
+ $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
+# &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time");
#print "_ " or ". ""));
+ }
+ if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
+ return $id;
+}
+
+sub get_all_text_unbalanced {
+#there is a copy of this in lonpublisher.pm
+ my($tag,$pars)= @_;
+ my $token;
+ my $result='';
+ $tag='<'.$tag.'>';
+ 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->[2]) {
+ $result.='[1].']]>';
+ } else {
+ $result.=$token->[1];
+ }
+ } elsif ($token->[0] eq 'PI') {
+ $result.=$token->[2];
+ } elsif ($token->[0] eq 'S') {
+ $result.=$token->[4];
+ } elsif ($token->[0] eq 'E') {
+ $result.=$token->[2];
+ }
+ if ($result =~ /\Q$tag\E/is) {
+ ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
+ #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
+ #&Apache::lonxml::debug('Result is :'.$1);
+ $redo=$tag.$redo;
+ &Apache::lonxml::newparser($pars,\$redo);
+ last;
+ }
+ }
+ return $result
+}
- my($tag,$pars)= @_;
- my $depth=0;
- my $token;
- my $result='';
- if ( $tag =~ m:^/: ) {
- my $tag=substr($tag,1);
-# &Apache::lonxml::debug("have:$tag:");
- while (($depth >=0) && ($token = $pars->get_token)) {
-# &Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]");
- if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
- $result.=$token->[1];
- } elsif ($token->[0] eq 'PI') {
- $result.=$token->[2];
- } elsif ($token->[0] eq 'S') {
- if ($token->[1] eq $tag) { $depth++; }
- $result.=$token->[4];
- } elsif ($token->[0] eq 'E') {
- if ( $token->[1] eq $tag) { $depth--; }
- #skip sending back the last end tag
- if ($depth > -1) { $result.=$token->[2]; } else {
- $pars->unget_token($token);
- }
- }
- }
- } else {
- while ($token = $pars->get_token) {
-# &Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
- if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
- $result.=$token->[1];
- } elsif ($token->[0] eq 'PI') {
- $result.=$token->[2];
- } elsif ($token->[0] eq 'S') {
- if ( $token->[1] eq $tag) {
- $pars->unget_token($token); last;
- } else {
- $result.=$token->[4];
- }
- } elsif ($token->[0] eq 'E') {
- $result.=$token->[2];
- }
- }
- }
-# &Apache::lonxml::debug("Exit:$result:");
- return $result
+sub increment_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 ($env{'request.state'} eq 'construct') {
+ $Apache::lonxml::counter=1;
+ $Apache::lonxml::counter_changed=1;
+ } elsif (defined($env{'form.counter'})) {
+ $Apache::lonxml::counter=$env{'form.counter'};
+ $Apache::lonxml::counter_changed=0;
+ } else {
+ $Apache::lonxml::counter=1;
+ $Apache::lonxml::counter_changed=1;
+ }
+}
+
+sub store_counter {
+ &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
+ $Apache::lonxml::counter_changed=0;
+ return '';
+}
+
+{
+ my $state;
+ sub clear_problem_counter {
+ undef($state);
+ &Apache::lonnet::delenv('form.counter');
+ &Apache::lonxml::init_counter();
+ &Apache::lonxml::store_counter();
+ }
+
+ sub remember_problem_counter {
+ &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
+ $state = $env{'form.counter'};
+ }
+
+ sub restore_problem_counter {
+ if (defined($state)) {
+ &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 {
+ my($tag,$pars,$style)= @_;
+ my $gotfullstack=1;
+ if (ref($pars) ne 'ARRAY') {
+ $gotfullstack=0;
+ $pars=[$pars];
+ }
+ if (ref($style) ne 'HASH') {
+ $style={};
+ }
+ my $depth=0;
+ my $token;
+ my $result='';
+ if ( $tag =~ m:^/: ) {
+ my $tag=substr($tag,1);
+ #&Apache::lonxml::debug("have:$tag:");
+ my $top_empty=0;
+ while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
+ while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
+ #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
+ if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
+ if ($token->[2]) {
+ $result.='[1].']]>';
+ } else {
+ $result.=$token->[1];
+ }
+ } elsif ($token->[0] eq 'PI') {
+ $result.=$token->[2];
+ } elsif ($token->[0] eq 'S') {
+ if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
+ $result.=$token->[4];
+ } elsif ($token->[0] eq 'E') {
+ if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
+ #skip sending back the last end tag
+ if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
+ my $string=
+ ''.
+ &HTML::Entities::encode($result,'<>&"').
+ ' ');
+ if ($gotfullstack) {
+ my $newstring=''.$result;
+ &Apache::lonxml::newparser($pars,\$newstring);
+ }
+ $result='';
+ }
+ } else {
+ while ($#$pars > -1) {
+ while ($token = $$pars[-1]->get_token) {
+ #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
+ if (($token->[0] eq 'T')||($token->[0] eq 'C')||
+ ($token->[0] eq 'D')) {
+ if ($token->[2]) {
+ $result.='[1].']]>';
+ } else {
+ $result.=$token->[1];
+ }
+ } elsif ($token->[0] eq 'PI') {
+ $result.=$token->[2];
+ } elsif ($token->[0] eq 'S') {
+ if ( $token->[1] =~ /^\Q$tag\E$/i) {
+ $$pars[-1]->unget_token($token); last;
+ } else {
+ $result.=$token->[4];
+ }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
+ } elsif ($token->[0] eq 'E') {
+ $result.=$token->[2];
+ }
+ }
+ if (($#$pars > 0) ) {
+ pop(@$pars);
+ pop(@Apache::lonxml::pwd);
+ } else { last; }
+ }
+ }
+ #&Apache::lonxml::debug("Exit:$result:");
+ return $result
}
sub newparser {
my ($parser,$contentref,$dir) = @_;
- push (@$parser,HTML::TokeParser->new($contentref));
- $$parser['-1']->xml_mode('1');
+ push (@$parser,HTML::LCParser->new($contentref));
+ $$parser[-1]->xml_mode(1);
+ $$parser[-1]->marked_sections(1);
if ( $dir eq '' ) {
push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
} 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 {
- my ($token) = @_;
- my $temp='';
- foreach (@{$token->[3]}) {
- unless ($_=~/\W/) {
- my $val=$token->[2]->{$_};
- $val =~ s/([\%\@\\])/\\$1/g;
- #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
- $temp .= "my \$$_=\"$val\";"
+ my ($token) = @_;
+ my (@vars,@values);
+ foreach my $attr (@{$token->[3]}) {
+ if ($attr!~/\W/) {
+ my $val=$token->[2]->{$attr};
+ $val =~ s/([\%\@\\\"\'])/\\$1/g;
+ $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
+ $val =~ s/(\$)$/\\$1/;
+ #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
+ push(@vars,"\$$attr");
+ push(@values,"\"$val\"");
+ }
}
- }
- return $temp;
+ my $var_init =
+ (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
+ : '';
+ return $var_init;
+}
+
+sub extlink {
+ my ($res,$exact)=@_;
+ if (!$exact) {
+ $res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
+ }
+ push(@Apache::lonxml::extlinks,$res)
}
sub writeallows {
unless ($#extlinks>=0) { return; }
- my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
- if ($ENV{'httpref.'.$thisurl}) {
- $thisurl=$ENV{'httpref.'.$thisurl};
+ my $thisurl = &Apache::lonnet::clutter(shift);
+ if ($env{'httpref.'.$thisurl}) {
+ $thisurl=$env{'httpref.'.$thisurl};
}
my $thisdir=$thisurl;
$thisdir=~s/\/[^\/]+$//;
@@ -961,44 +1208,49 @@ sub writeallows {
&Apache::lonnet::appenv(%httpref);
}
+sub register_ssi {
+ my ($url,%form)=@_;
+ push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form});
+ return '';
+}
+
+sub do_registered_ssi {
+ foreach my $info (@Apache::lonxml::ssi_info) {
+ my %form=%{ $info->{'form'}};
+ my $url=$info->{'url'};
+ &Apache::lonnet::ssi($url,%form);
+ }
+}
#
# Afterburner handles anchors, highlights and links
#
sub afterburn {
my $result=shift;
- foreach (split(/&/,$ENV{'QUERY_STRING'})) {
- my ($name, $value) = split(/=/,$_);
- $value =~ tr/+/ /;
- $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
- if (($name eq 'highlight')||($name eq 'anchor')||($name eq 'link')) {
- unless ($ENV{'form.'.$name}) {
- $ENV{'form.'.$name}=$value;
- }
- }
- }
- if ($ENV{'form.highlight'}) {
- foreach (split(/\,/,$ENV{'form.highlight'})) {
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['highlight','anchor','link']);
+ if ($env{'form.highlight'}) {
+ foreach (split(/\,/,$env{'form.highlight'})) {
my $anchorname=$_;
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
- $result=~s/($matchthis)/\$1\<\/font\>/gs;
+ $result=~s/(\Q$matchthis\E)/\$1\<\/font\>/gs;
}
}
- if ($ENV{'form.link'}) {
- foreach (split(/\,/,$ENV{'form.link'})) {
+ if ($env{'form.link'}) {
+ foreach (split(/\,/,$env{'form.link'})) {
my ($anchorname,$linkurl)=split(/\>/,$_);
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
- $result=~s/($matchthis)/\$1\<\/a\>/gs;
+ $result=~s/(\Q$matchthis\E)/\ $1\<\/a\>/gs;
}
}
- if ($ENV{'form.anchor'}) {
- my $anchorname=$ENV{'form.anchor'};
+ if ($env{'form.anchor'}) {
+ my $anchorname=$env{'form.anchor'};
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
- $result=~s/($matchthis)/\ $1\<\/a\>/s;
+ $result=~s/(\Q$matchthis\E)/\ $1\<\/a\>/s;
$result.=(<<"ENDSCRIPT");
-
ENDSCRIPT
@@ -1008,200 +1260,439 @@ ENDSCRIPT
sub storefile {
my ($file,$contents)=@_;
+ &Apache::lonnet::correct_line_ends(\$contents);
if (my $fh=Apache::File->new('>'.$file)) {
print $fh $contents;
$fh->close();
+ return 1;
} else {
- &warning("Unable to save file $file");
+ &warning("Unable to save file $file");
+ return 0;
}
}
-sub inserteditinfo {
- my ($result,$filecontents)=@_;
- unless ($filecontents) {
- $filecontents=(<
-
- Title of Document Goes Here
-
+$title
-
- Body of Document Goes Here
-
+$body
SIMPLECONTENT
- }
+ return $filecontents;
+}
- $filecontents =~ s::</textarea>:ig;
+sub createnewsty {
+ my $filecontents=(<
+
+
+
+SIMPLECONTENT
+ return $filecontents;
+}
+
+
+sub inserteditinfo {
+ my ($result,$filecontents,$filetype)=@_;
+ $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
# my $editheader='Edit below
+$addbuttons
+
+ HTMLArea.loadPlugin("FullPage");
+
+ function initDocument() {
+ var editor=new HTMLArea("filecont",config);
+ editor.registerPlugin(FullPage);
+ editor.generate();
+ }
+
+FULLPAGE
+ } else {
+ $initialize.=(<
+$addbuttons
+ function initDocument() {
+ }
+
+FULLPAGE
+ }
+ $result=~s/\]*)\>/\/i;
+ $xml_help=&Apache::loncommon::helpLatexCheatsheet();
+ }
+ my $cleanbut = '';
+
+ my $titledisplay=&display_title();
+ my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
+ 'vi' => 'Save and View',
+ 'dv' => 'Discard Edits and View',
+ 'un' => 'undo',
+ 'ed' => 'Edit');
+ my $buttons=(<]*\>)/$1$editheader/is;
$result=~s/(\<\/body\>)/$editfooter/is;
return $result;
}
-sub editbutton {
- my ($result) = @_;
- my $button=(<
-
-
-File not found
-
-
-File not found: $file
-
-