version 1.26, 2000/10/11 21:07:59
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version 1.38, 2000/11/14 22:24:38
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# XML Parser Module |
# XML Parser Module |
# |
# |
# last modified 06/26/00 by Alexander Sakharuk |
# last modified 06/26/00 by Alexander Sakharuk |
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# 11/6 Gerd Kortemeyer |
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package Apache::lonxml; |
package Apache::lonxml; |
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use vars |
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qw(@pwd $outputstack $redirection $textredirection $on_offimport @extlinks); |
use strict; |
use strict; |
use HTML::TokeParser; |
use HTML::TokeParser; |
use Safe; |
use Safe; |
Line 26 use Apache::run;
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Line 28 use Apache::run;
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use Apache::londefdef; |
use Apache::londefdef; |
use Apache::scripttag; |
use Apache::scripttag; |
#================================================== Main subroutine: xmlparse |
#================================================== Main subroutine: xmlparse |
@Apache::lonxml::pwd=(); |
@pwd=(); |
$Apache::lonxml::outputstack = ''; |
$outputstack = ''; |
$Apache::lonxml::redirection = 1; |
$redirection = 1; |
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$textredirection = 1; |
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$on_offimport = 0; |
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@extlinks=(); |
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sub xmlparse { |
sub xmlparse { |
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my ($target,$content_file_string,$safeinit,%style_for_target) = @_; |
my ($target,$content_file_string,$safeinit,%style_for_target) = @_; |
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if ($target eq 'meta') |
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{$Apache::lonxml::textredirection = 0; |
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$Apache::lonxml::on_offimport = 1; |
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} |
my @pars = (); |
my @pars = (); |
@Apache::lonxml::pwd=(); |
@Apache::lonxml::pwd=(); |
my $pwd=$ENV{'request.filename'}; |
my $pwd=$ENV{'request.filename'}; |
Line 51 sub xmlparse {
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Line 60 sub xmlparse {
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# $safeeval->deny(":base_orig"); |
# $safeeval->deny(":base_orig"); |
$safeinit .= ';$external::target='.$target.';'; |
$safeinit .= ';$external::target='.$target.';'; |
$safeinit .= ';$external::randomseed='.&Apache::lonnet::rndseed().';'; |
$safeinit .= ';$external::randomseed='.&Apache::lonnet::rndseed().';'; |
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$safeinit .= &Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_xml.lcpm'); |
&Apache::run::run($safeinit,$safeeval); |
&Apache::run::run($safeinit,$safeeval); |
#-------------------- Redefinition of the target in the case of compound target |
#-------------------- Redefinition of the target in the case of compound target |
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Line 63 sub xmlparse {
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Line 73 sub xmlparse {
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while ( $#pars > -1 ) { |
while ( $#pars > -1 ) { |
while ($token = $pars[$#pars]->get_token) { |
while ($token = $pars[$#pars]->get_token) { |
if ($token->[0] eq 'T') { |
if ($token->[0] eq 'T') { |
$result=$token->[1]; |
if ($Apache::lonxml::textredirection == 1) {$result=$token->[1];} |
# $finaloutput .= &Apache::run::evaluate($token->[1],$safeeval,''); |
# $finaloutput .= &Apache::run::evaluate($token->[1],$safeeval,''); |
} elsif ($token->[0] eq 'S') { |
} elsif ($token->[0] eq 'S') { |
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# if ($target eq 'meta' and $token->[2]->{metaout} eq 'ON') {$Apache::lonxml::textredirection = 1;} |
# add tag to stack |
# add tag to stack |
push (@stack,$token->[1]); |
push (@stack,$token->[1]); |
# add parameters list to another stack |
# add parameters list to another stack |
Line 88 sub xmlparse {
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Line 99 sub xmlparse {
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\@pars, $safeeval, \%style_for_target); |
\@pars, $safeeval, \%style_for_target); |
} |
} |
} elsif ($token->[0] eq 'E') { |
} elsif ($token->[0] eq 'E') { |
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# if ($target eq 'meta') {$Apache::lonxml::textredirection = 0;} |
#clear out any tags that didn't end |
#clear out any tags that didn't end |
while ($token->[1] ne $stack[$#stack] |
while ($token->[1] ne $stack[$#stack] |
&& ($#stack > -1)) {pop @stack;pop @parstack;&decreasedepth($token);} |
&& ($#stack > -1)) {pop @stack;pop @parstack;&decreasedepth($token);} |
Line 150 sub recurse {
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Line 162 sub recurse {
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while ( $#pat > -1 ) { |
while ( $#pat > -1 ) { |
while ($tokenpat = $pat[$#pat]->get_token) { |
while ($tokenpat = $pat[$#pat]->get_token) { |
if ($tokenpat->[0] eq 'T') { |
if ($tokenpat->[0] eq 'T') { |
$partstring = $tokenpat->[1]; |
if ($Apache::lonxml::textredirection == 1) {$partstring = $tokenpat->[1];} |
} elsif ($tokenpat->[0] eq 'S') { |
} elsif ($tokenpat->[0] eq 'S') { |
push (@innerstack,$tokenpat->[1]); |
push (@innerstack,$tokenpat->[1]); |
push (@innerparstack,&parstring($tokenpat)); |
push (@innerparstack,&parstring($tokenpat)); |
Line 228 sub initdepth {
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Line 240 sub initdepth {
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sub increasedepth { |
sub increasedepth { |
my ($token) = @_; |
my ($token) = @_; |
if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) { |
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$#Apache::lonxml::depthcounter--; |
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$Apache::lonxml::olddepth=$Apache::lonxml::depth; |
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} |
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$Apache::lonxml::depth++; |
$Apache::lonxml::depth++; |
# print "<br>s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1]<br>\n"; |
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$Apache::lonxml::depthcounter[$Apache::lonxml::depth]++; |
$Apache::lonxml::depthcounter[$Apache::lonxml::depth]++; |
if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) { |
if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) { |
$Apache::lonxml::olddepth=$Apache::lonxml::depth; |
$Apache::lonxml::olddepth=$Apache::lonxml::depth; |
} |
} |
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# my $curdepth=join('_',@Apache::lonxml::depthcounter); |
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# print "<br>s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]<br>\n"; |
} |
} |
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sub decreasedepth { |
sub decreasedepth { |
my ($token) = @_; |
my ($token) = @_; |
$Apache::lonxml::depth--; |
$Apache::lonxml::depth--; |
# print "<br>e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1]<br>\n"; |
if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) { |
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$#Apache::lonxml::depthcounter--; |
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$Apache::lonxml::olddepth=$Apache::lonxml::depth+1; |
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} |
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# my $curdepth=join('_',@Apache::lonxml::depthcounter); |
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# print "<br>e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth <br>\n"; |
} |
} |
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sub get_all_text { |
sub get_all_text { |
Line 263 sub get_all_text {
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Line 277 sub get_all_text {
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} elsif ($token->[0] eq 'E') { |
} elsif ($token->[0] eq 'E') { |
if ( $token->[1] eq $tag) { $depth--; } |
if ( $token->[1] eq $tag) { $depth--; } |
#skip sending back the last end tag |
#skip sending back the last end tag |
if ($depth > -1) { $result.=$token->[2]; } |
if ($depth > -1) { $result.=$token->[2]; } else { |
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$pars->unget_token($token); |
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} |
} |
} |
} |
} |
return $result |
return $result |
Line 285 sub parstring {
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Line 301 sub parstring {
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my ($token) = @_; |
my ($token) = @_; |
my $temp=''; |
my $temp=''; |
map { |
map { |
if ($_=~/\w+/) { |
unless ($_=~/\W/) { |
$temp .= "my \$$_=\"$token->[2]->{$_}\";" |
$temp .= "my \$$_=\"$token->[2]->{$_}\";" |
} |
} |
} @{$token->[3]}; |
} @{$token->[3]}; |
return $temp; |
return $temp; |
} |
} |
#<<<<<<< lonxml.pm |
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sub writeallows { |
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my $thisurl='/res/'.&Apache::lonnet::declutter(shift); |
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my $thisdir=$thisurl; |
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$thisdir=~s/\/[^\/]+$//; |
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my %httpref=(); |
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map { |
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$httpref{'httpref.'. |
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&Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; } @extlinks; |
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&Apache::lonnet::appenv(%httpref); |
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} |
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sub handler { |
sub handler { |
my $request=shift; |
my $request=shift; |
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my $target='web'; |
my $target='web'; |
$Apache::lonxml::debug=1; |
$Apache::lonxml::debug=1; |
$request->content_type('text/html'); |
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# $request->send_http_header; |
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if ($ENV{'browser.mathml'}) { |
if ($ENV{'browser.mathml'}) { |
$request->print( '<?xml version="1.0"?>' |
$request->content_type('text/xml'); |
.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>' |
} else { |
.'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" ' |
$request->content_type('text/html'); |
.'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>' |
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.'<html xmlns:math="http://www.w3.org/1998/Math/MathML" ' |
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.'xmlns="http://www.w3.org/TR/REC-html40">' |
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.'<body bgcolor="#FFFFFF">'."\n"); |
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} else { |
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my $headerstring='<html>'; |
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if ($ENV{'browser.os'} eq 'mac') { |
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$headerstring.="<head>\n" |
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.'<meta Content-Type="text/html; charset=x-mac-roman">' |
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."\n</head>\n"; |
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} |
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$request->print($headerstring.'<body bgcolor="#FFFFFF">'."\n"); |
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} |
} |
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# $request->print(<<ENDHEADER); |
# $request->print(<<ENDHEADER); |
#<html> |
#<html> |
#<head> |
#<head> |
Line 325 sub handler {
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Line 338 sub handler {
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#<body bgcolor="#FFFFFF"> |
#<body bgcolor="#FFFFFF"> |
#ENDHEADER |
#ENDHEADER |
# &Apache::lonhomework::send_header($request); |
# &Apache::lonhomework::send_header($request); |
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$request->send_http_header; |
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return 'OK' if $request->header_only; |
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$request->print(&Apache::lontexconvert::header()); |
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$request->print('<body bgcolor="#FFFFFF">'."\n"); |
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my $file = "/home/httpd/html".$request->uri; |
my $file = "/home/httpd/html".$request->uri; |
my %mystyle; |
my %mystyle; |
my $result = ''; |
my $result = ''; |
$result = Apache::lonxml::xmlparse($target, &Apache::lonnet::getfile($file),'',%mystyle); |
$result = Apache::lonxml::xmlparse($target, &Apache::lonnet::getfile($file),'',%mystyle); |
# $request->print("Result follows:"); |
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$request->print($result); |
$request->print($result); |
# $request->print(":Result ends"); |
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$request->print('</body>'); |
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$request->print(&Apache::lontexconvert::footer()); |
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writeallows($request->uri); |
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return 'OK'; |
} |
} |
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$Apache::lonxml::debug=0; |
$Apache::lonxml::debug=0; |