version 1.23, 2002/02/15 21:33:12
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version 1.24, 2002/03/29 18:21:00
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Line 25 package Apache::run;
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Line 25 package Apache::run;
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
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sub evaluateold { |
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my ($expression,$safeeval,$decls) = @_; |
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# print "inside2 evaluate $decls with $expression<br />\n"; |
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# gerd's old method interpolates unset vars |
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# $safeeval->reval('return qq('.$expression.');'); |
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unless (defined($expression)) { return ''; } |
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my $result = ''; |
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$@=''; |
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$safeeval->reval('$_=q|'.$expression.'|;'); |
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if ($@ eq '') { |
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$safeeval->reval('{'.$decls.'$_=~s/(\$[A-Za-z]\w*)/(defined(eval($1))?eval($1):$1)/ge;}'); |
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if ($@ eq '') { |
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$result = $safeeval->reval('return $_;'); |
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} else { |
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&Apache::lonxml::error("substitution on:$expression:with:$decls:caused:$@:"); |
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} |
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} else { |
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&Apache::lonxml::error("defining:$expression:caused:$@:"); |
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} |
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return $result |
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} |
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$Apache::run::EVALUATE_STRING=<<'ENDEVALUATE'; |
$Apache::run::EVALUATE_STRING=<<'ENDEVALUATE'; |
my %oldexpressions=(); |
my %_LONCAPA_INTERNAL_oldexpressions=(); |
while (!$oldexpressions{$_}) { |
my $i=0; |
$oldexpressions{$_}=1; |
while (!$_LONCAPA_INTERNAL_oldexpressions{$_}) { |
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$_LONCAPA_INTERNAL_oldexpressions{$_}=1; |
$_ =~s/((?:\$|\&)(?:[\#|\$]*[A-Za-z][\w]*|\{[A-Za-z][\w]*\}))([\[\{][^\$\&\]\}]+[\]\}])*?(\([^\$\&\)]+\))*?(?=[^\[\{\(]|$)/eval(defined(eval($1.$2))?eval('$1.$2.$3'):'$1.$2.$3')/seg; |
$_ =~s/((?:\$|\&)(?:[\#|\$]*[A-Za-z][\w]*|\{[A-Za-z][\w]*\}))([\[\{][^\$\&\]\}]+[\]\}])*?(\([^\$\&\)]+\))*?(?=[^\[\{\(]|$)/eval(defined(eval($1.$2))?eval('$1.$2.$3'):'$1.$2.$3')/seg; |
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if ($i++ > 10 ) { last; } |
} |
} |
ENDEVALUATE |
ENDEVALUATE |
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