version 1.1, 2000/07/18 17:32:32
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version 1.3, 2000/08/06 03:25:24
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Line 10
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Line 10
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# 7/1 Gerd Kortemeyer) |
# 7/1 Gerd Kortemeyer) |
# 7/1,7/3,7/4,7/7,7/8,7/10 Gerd Kortemeyer) |
# 7/1,7/3,7/4,7/7,7/8,7/10 Gerd Kortemeyer) |
# |
# |
# 7/15,7/17,7/18 Gerd Kortemeyer |
# 7/15,7/17,7/18,8/1,8/2,8/4,8/5 Gerd Kortemeyer |
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package Apache::lonuserstate; |
package Apache::lonuserstate; |
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Line 106 sub loadmap {
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Line 106 sub loadmap {
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} |
} |
if ($token->[2]->{'type'}) { |
if ($token->[2]->{'type'}) { |
$hash{'type_'.$rid}=$token->[2]->{'type'}; |
$hash{'type_'.$rid}=$token->[2]->{'type'}; |
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if ($token->[2]->{'type'} eq 'start') { |
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$hash{'map_start_'.$uri}="$rid"; |
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} |
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if ($token->[2]->{'type'} eq 'finish') { |
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$hash{'map_finish_'.$uri}="$rid"; |
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} |
} else { |
} else { |
$hash{'type_'.$rid}='normal'; |
$hash{'type_'.$rid}='normal'; |
} |
} |
Line 113 sub loadmap {
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Line 119 sub loadmap {
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if (($turi=~/\.course$/) || |
if (($turi=~/\.course$/) || |
($turi=~/\.sequence$/) || |
($turi=~/\.sequence$/) || |
($turi=~/\.page$/)) { |
($turi=~/\.page$/)) { |
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$hash{'is_map_'.$rid}=1; |
&loadmap($turi); |
&loadmap($turi); |
} |
} |
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Line 122 sub loadmap {
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Line 129 sub loadmap {
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my $rid=$lpc.'.'.$token->[2]->{'id'}; |
my $rid=$lpc.'.'.$token->[2]->{'id'}; |
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$hash{'kind_'.$rid}='cond'; |
$hash{'kind_'.$rid}='cond'; |
$hash{'value_'.$rid}=$token->[2]->{'value'}; |
$cond[$#cond+1]=$token->[2]->{'value'}; |
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$hash{'condid_'.$rid}=$#cond; |
if ($token->[2]->{'type'}) { |
if ($token->[2]->{'type'}) { |
$hash{'type_'.$rid}=$token->[2]->{'type'}; |
$cond[$#cond].=':'.$token->[2]->{'type'}; |
} else { |
} else { |
$hash{'type_'.$rid}='normal'; |
$cond[$#cond].=':normal'; |
} |
} |
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} elsif ($token->[1] eq 'link') { |
} elsif ($token->[1] eq 'link') { |
Line 167 sub loadmap {
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Line 175 sub loadmap {
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} |
} |
} |
} |
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# --------------------------------------------------------- Simplify expression |
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sub simplify { |
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my $expression=shift; |
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# "True and" is nothing |
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$expression=~s/0\&//g; |
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# (8)=8 |
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$expression=~s/\((\d+)\)/$1/g; |
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# 8&8=8 |
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$expression=~s/(\d+)\&\1/$1/g; |
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# 8|8=8 |
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$expression=~s/(\d+)\|\1/$1/g; |
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# (5&3)&4=5&3&4 |
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$expression=~s/\((\d+)\&(\d+)\)\&(\d+)/$1\&$2\&$3/g; |
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# (((5&3)|(4&6)))=((5&3)|(4&6)) |
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$expression=~ |
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s/\((\(\(\d+(?:\&\d+)*\)(?:\|\(\d+(?:\&\d+)*\))+\))\)/$1/g; |
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# ((5&3)|(4&6))|(1&2)=(5&3)|(4&6)|(1&2) |
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$expression=~ |
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s/\((\(\d+(?:\&\d+)*\))((?:\|\(\d+(?:\&\d+)*\))+)\)\|(\(\d+(?:\&\d+)*\))/\($1$2\|$3\)/g; |
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return $expression; |
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} |
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# -------------------------------------------------------- Build condition hash |
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sub traceroute { |
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my ($sofar,$rid,$beenhere)=@_; |
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$sofar=simplify($sofar); |
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unless ($beenhere=~/\&$rid\&/) { |
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$beenhere.=$rid.'&'; |
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if (defined($hash{'conditions_'.$rid})) { |
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$hash{'conditions_'.$rid}=simplify( |
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'('.$hash{'conditions_'.$rid}.')|('.$sofar.')'); |
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} else { |
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$hash{'conditions_'.$rid}=$sofar; |
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} |
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if (defined($hash{'is_map_'.$rid})) { |
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if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
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&traceroute($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},'&'); |
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if (defined($hash{'map_finish_'.$hash{'src_'.$rid}})) { |
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$sofar= |
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$hash{'conditions_'.$hash{'map_finish_'.$hash{'src_'.$rid}}}; |
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} |
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} |
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} |
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if (defined($hash{'to_'.$rid})) { |
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map { |
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my $further=$sofar; |
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if ($hash{'undercond_'.$_}) { |
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if (defined($hash{'condid_'.$hash{'undercond_'.$_}})) { |
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$further=simplify('('.$further.')&('. |
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$hash{'condid_'.$hash{'undercond_'.$_}}.')'); |
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} else { |
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$errtext.='Undefined condition ID: ' |
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.$hash{'undercond_'.$_}.'. '; |
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} |
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} |
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&traceroute($further,$hash{'goesto_'.$_},$beenhere); |
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} split(/\,/,$hash{'to_'.$rid}); |
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} |
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} |
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} |
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# ---------------------------------------------------- Read map and all submaps |
# ---------------------------------------------------- Read map and all submaps |
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sub readmap { |
sub readmap { |
my $uri=shift; |
my $uri=shift; |
@cond=(); |
@cond=('true:normal'); |
%hash=(); |
%hash=(); |
$errtext=''; |
$errtext=''; |
$pc=0; |
$pc=0; |
loadmap($uri); |
loadmap($uri); |
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if (defined($hash{'map_start_'.$uri})) { |
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&traceroute('0',$hash{'map_start_'.$uri},'&'); |
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} |
} |
} |
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# ---------------------------------------------------------------- Testing only |
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sub handler { |
sub handler { |
my $r = shift; |
my $r = shift; |
$r->content_type('text/html'); |
$r->content_type('text/html'); |
Line 187 sub handler {
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Line 262 sub handler {
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readmap('/res/msu/korte/foo.course'); |
readmap('/res/msu/korte/foo.course'); |
$r->print("<html><body>\n"); |
$r->print("<html><body>\n"); |
my $hashkey; |
my $hashkey; |
foreach $hashkey (keys %hash) { |
foreach $hashkey (sort keys %hash) { |
$r->print("$hashkey: $hash{$hashkey}<br>\n"); |
$r->print("$hashkey: $hash{$hashkey}<br>\n"); |
} |
} |
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my $i; |
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$r->print('<hr>'); |
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for ($i=0;$i<=$#cond;$i++) { |
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$r->print($i.' : '.$cond[$i]."<br>\n"); |
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} |
$r->print("<h1>$errtext</h1></body></html>\n"); |
$r->print("<h1>$errtext</h1></body></html>\n"); |
return OK; |
return OK; |
} |
} |