version 1.2, 2000/06/23 20:40:06
|
version 1.6, 2000/06/29 13:58:23
|
Line 1
|
Line 1
|
# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Style Parser Module |
# XML Parser Module |
# |
# |
# last modified 06/23/00 by Alexander Sakharuk |
# last modified 06/26/00 by Alexander Sakharuk |
|
|
package Apache::lonstyleparser; |
package Apache::lonxml; |
|
|
use strict; |
use strict; |
use HTML::TokeParser; |
use HTML::TokeParser; |
|
use Safe; |
#============================================================= style subroutine |
use Apache::style; |
|
use Apache::lontexconvert; |
sub styleparser { |
use Apache::londefdef; |
|
use Apache::run; |
my ($target,$content_style_string) = @_; |
#================================================== Main subroutine: xmlparse |
|
|
#------------------------------------------- target redefinition (if necessary) |
sub xmlparse { |
|
|
my @target_string = ''; |
my ($target,$content_file_string,%style_for_target) = @_; |
my $element; |
my $pars = HTML::TokeParser->new(\$content_file_string); |
|
my $currentstring = ''; |
($element,@target_string) = split ('&&',$target); |
my $finaloutput = ''; |
|
my $newarg = ''; |
map {$content_style_string =~ s/\<(.*)$_\>/\<$1$element\>/g; } @target_string; |
my $tempostring = ''; |
|
my $tempocont = ''; |
$target = $element; |
my $safeeval = new Safe; |
|
$safeeval->permit("entereval"); |
#-------------------------------------------- create a table for defined target |
#-------------------- Redefinition of the target in the case of compound target |
#----------------------------------------- from the information from Style File |
|
|
($target, my @tenta) = split('&&',$target); |
my @value_style = (); |
|
my $current_key = ''; |
#------------------------- Stack definition (in stack we have all current tags) |
my $current_value = ''; |
|
my $stoken; |
my @stack = (); |
my $flag; |
my @parstack = (); |
my $iele; |
|
|
#------------------------------------- Parse input string (content_file_string) |
my $pstyle = HTML::TokeParser->new(\$content_style_string); |
|
|
my $token; |
while ($stoken = $pstyle->get_token) { |
|
#----------------------------------------------------- start for tag definition |
while ($token = $pars->get_token) { |
if ($stoken->[0] eq 'S' and $stoken->[1] eq 'definetag') { |
if ($token->[0] eq 'T') { |
#-------------------------------------------------------------- new key in hash |
$finaloutput .= $token->[1]; |
$current_key = $stoken->[2]{name}; |
$tempocont .= $token->[1]; |
$flag = 0; |
} elsif ($token->[0] eq 'S') { |
#-------------------------------------------------------------- metadata output |
#------------------------------------------------------------- add tag to stack |
if ($target eq 'meta') { |
push (@stack,$token->[1]); |
while ($stoken = $pstyle->get_token and $stoken->[1] ne 'definetag') { |
#----------------------------------------- add parameters list to another stack |
if ($stoken->[0] eq 'S' and $stoken->[1] eq 'meta') { |
map {$tempostring .= "$_=$token->[2]->{$_},"} @{$token->[3]}; |
while ($stoken = $pstyle->get_token and $stoken->[1] ne 'meta') { |
push (@parstack,$tempostring); |
$current_value .= $stoken->[1]; |
$tempostring = ''; |
} |
|
} |
if (exists $style_for_target{$token->[1]}) { |
} |
# print "Style for $token->[1] is " .$style_for_target{$token->[1]}."\n"; |
} else { |
#---------------------------------------------------- use style file definition |
#--------------------------------------------------------------- outtext output |
|
while ($stoken = $pstyle->get_token and $stoken->[1] ne 'outtext') { |
$newarg = $style_for_target{$token->[1]}; |
if ($stoken->[1] eq 'definetag') { |
|
$flag = 1; |
if (index($newarg,'script') != -1 ) { |
last; |
my $pat = HTML::TokeParser->new(\$newarg); |
|
my $tokenpat = ''; |
|
my $partstring = ''; |
|
my $oustring = ''; |
|
my $outputstring; |
|
|
|
while ($tokenpat = $pat->get_token) { |
|
if ($tokenpat->[0] eq 'T') { |
|
# print "evaluating $tokenpat->[4]\n"; |
|
$oustring .= &Apache::run::evaluate($tokenpat->[1],$safeeval); |
|
} elsif ($tokenpat->[0] eq 'S') { |
|
if ($tokenpat->[1] eq 'script') { |
|
while ($tokenpat = $pat->get_token and $tokenpat->[1] ne 'script') { |
|
if ($tokenpat->[0] eq 'S') { |
|
$partstring .= $tokenpat->[4]; |
|
} elsif ($tokenpat->[0] eq 'T') { |
|
$partstring .= $tokenpat->[1]; |
|
} elsif ($tokenpat->[0] eq 'E') { |
|
$partstring .= $tokenpat->[2]; |
|
} |
|
} |
|
|
|
map {$partstring =~ s/\$$_/$token->[2]->{$_}/g; } @{$token->[3]}; |
|
# print "want to use run\n"; |
|
&Apache::run::run($partstring,$safeeval); |
|
|
|
$partstring = ''; |
|
} else { |
|
# print "evaluating $tokenpat->[4]\n"; |
|
$oustring .= &Apache::run::evaluate($tokenpat->[4],$safeeval); |
|
} |
|
} elsif ($tokenpat->[0] eq 'E' and $tokenpat->[1] ne 'evaluate') { |
|
# print "hereish\n"; |
|
$oustring .= $tokenpat->[1]; |
} |
} |
} |
} |
if ($flag == 0) { |
$newarg = $oustring; |
while ($stoken = $pstyle->get_token and $stoken->[0] ne 'S') { |
} else { |
$current_value .= $stoken->[1]; |
map {$newarg =~ s/\$$_/$token->[2]->{$_}/g; } @{$token->[3]}; |
} |
} |
while ($stoken->[1] ne 'definetag') { |
$finaloutput .= $newarg; |
if ($stoken->[0] eq 'S' and $stoken->[1] eq $target) { |
} else { |
while ($stoken = $pstyle->get_token) { |
# use default definition of tag |
if ($stoken->[1] ne $target) { |
my $sub="start_$token->[1]"; |
if ($stoken->[0] eq 'S') { |
{ |
my $flagelem = 0; |
no strict 'refs'; |
for (my $i=$#value_style-1;$i>0;$i=$i-2) { |
if (defined (&$sub)) { |
if ($stoken->[1] eq $value_style[$i]) { |
$currentstring = &$sub($target,$token,\@parstack); |
$flagelem = 1; |
$finaloutput .= $currentstring; |
$iele = $i+1; |
$currentstring = ''; |
last; |
} else { |
} |
$finaloutput .= $token->[4]; |
} |
|
if ($flagelem == 0) { |
|
$current_value .= $stoken->[4]; |
|
} else { |
|
$current_value .= $value_style[$iele]; |
|
} |
|
} |
|
if ($stoken->[0] eq 'E') { |
|
my $flagelem = 0; |
|
for (my $i=$#value_style-1;$i>0;$i=$i-2) { |
|
if ('/'.$stoken->[1] eq $value_style[$i]) { |
|
$flagelem = 1; |
|
$iele = $i+1; |
|
last; |
|
} |
|
} |
|
if ($flagelem == 0) { |
|
$current_value .= $stoken->[2]; |
|
} else { |
|
$current_value .= $value_style[$iele]; |
|
} |
|
} |
|
if ($stoken->[0] eq 'T') { |
|
$current_value .= $stoken->[1]; |
|
} |
|
} else { |
|
last; |
|
} |
} |
} |
use strict 'refs'; |
} elsif ($stoken->[0] eq 'S' and $stoken->[1] ne $target) { |
} |
my $tempotempo = $stoken->[1]; |
} |
while ($stoken = $pstyle->get_token and $stoken->[1] ne $tempotempo) { |
} elsif ($token->[0] eq 'E') { |
} |
# Put here check for correct final tag (to avoid existence of |
|
# starting tag only) |
|
|
|
pop @stack; |
|
unless (exists $style_for_target{$token->[1]}) { |
|
my $sub="end_$token->[1]"; |
|
{ |
|
no strict 'refs'; |
|
if (defined(&$sub)) { |
|
$currentstring = &$sub($target,$token,\@parstack); |
|
$finaloutput .= $currentstring; |
|
$currentstring = ''; |
|
} else { |
|
$finaloutput .= $token->[4]; |
|
} |
|
use strict 'refs'; |
} |
} |
|
|
while ($stoken = $pstyle->get_token) { |
|
if ($stoken->[0] eq 'T') { |
|
$current_value .= $stoken->[1]; |
|
} |
|
if ($stoken->[0] eq 'E') { |
|
last; |
|
} |
|
if ($stoken->[0] eq 'S') { |
|
last; |
|
} |
|
} |
|
|
|
} |
|
} |
} |
} |
#---- end tag from the style file |
|
if (exists $style_for_target{'/'."$token->[1]"}) { |
} |
$newarg = $style_for_target{'/'."$token->[1]"}; |
$current_value =~ s/(\s)+/$1/g; |
if (index($newarg,'script') != -1 ) { |
if ($current_value ne ' ' and $current_value ne '' ) { |
my $pat = HTML::TokeParser->new(\$newarg); |
push (@value_style,lc $current_key,$current_value); |
my $tokenpat; |
|
my $partstring = ''; |
|
my $oustring = ''; |
|
my $outputstring; |
|
|
|
while ($tokenpat = $pat->get_token) { |
|
if ($tokenpat->[0] eq 'T') { |
|
$oustring .= $tokenpat->[1]; |
|
} elsif ($tokenpat->[0] eq 'S') { |
|
if ($tokenpat->[1] eq 'script') { |
|
while ($tokenpat = $pat->get_token and $tokenpat->[1] ne 'script') { |
|
if ($tokenpat->[0] eq 'S') { |
|
$partstring .= $tokenpat->[4]; |
|
} elsif ($tokenpat->[0] eq 'T') { |
|
$partstring .= $tokenpat->[1]; |
|
} elsif ($tokenpat->[0] eq 'E') { |
|
$partstring .= $tokenpat->[2]; |
|
} |
|
} |
|
|
|
my @tempor_list = split(',',$parstack[$#parstack]); |
|
my @te_kl = (); |
|
my %tempor_hash = (); |
|
map {(my $onete,my $twote) = split('=',$_); push (@te_kl,$onete); |
|
$tempor_hash{$onete} = $twote} @tempor_list; |
|
map {$partstring =~ s/\$$_/$tempor_hash{$_}/g; } @te_kl; |
|
print "want to use run\n"; |
|
&Apache::run::run($partstring,$safeeval); |
|
|
|
$partstring = ''; |
|
} elsif ($tokenpat->[1] eq 'evaluate') { |
|
$outputstring = &Apache::run::evaluate($tokenpat->[2]{expression},$safeeval); |
|
$oustring .= $outputstring; |
|
} else { |
|
$oustring .= $tokenpat->[4]; |
|
} |
|
} elsif ($tokenpat->[0] eq 'E' and $tokenpat->[1] ne 'evaluate') { |
|
$oustring .= $tokenpat->[1]; |
|
} |
|
} |
|
$newarg = $oustring; |
|
} else { |
|
my @very_temp = split(',',$parstack[$#parstack]); |
|
map {my @ret= split('=',$_); $newarg =~ s/\$$ret[0]/$ret[1]/g; } @very_temp; |
|
} |
|
|
|
$finaloutput .= $newarg; |
} |
} |
$current_key = ''; |
pop @parstack; |
$current_value = ''; |
} |
|
} |
} |
return $finaloutput; |
my %style_for_target = @value_style; |
|
#--------------------------------------------------------------- check printing |
|
# while (($current_key,$current_value) = each %style_for_target) { |
|
# print "$current_key => $current_value\n"; |
|
# } |
|
#---------------------------------------------------------------- return result |
|
return %style_for_target; |
|
} |
} |
|
|
1; |
1; |