version 1.174, 2007/08/10 18:16:28
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version 1.177, 2007/09/25 20:18:56
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Line 569 sub implicit_multiplication {
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Line 569 sub implicit_multiplication {
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$expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi; |
$expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi; |
# Fill in multiplication signs |
# Fill in multiplication signs |
# a b -> a*b;3 b -> 3*b;3 4 -> 3*4 |
# a b -> a*b;3 b -> 3*b;3 4 -> 3*4 |
# The while-pos-construction is necessary for a b c -> a*b*c*d instead of a*b c*d |
$expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs; |
while($expression=~s/([A-Za-z0-9])\s+([A-Za-z0-9])/$1\*$2/gs){pos($expression)--} |
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# )( -> )*(; ) ( -> )*( |
# )( -> )*(; ) ( -> )*( |
$expression=~s/\)\s*\(/\)\*\(/gs; |
$expression=~s/\)\s*\(/\)\*\(/gs; |
# 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A |
# 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A |
Line 1207 sub check_status {
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Line 1206 sub check_status {
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return 2; |
return 2; |
} |
} |
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=pod |
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=item setup_prior_tries_hash($func,$data) |
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Foreach each past .submission $func is called with 3 arguments |
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- the mode to set things up for (currently always 'grade') |
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- the stored .submission string |
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- The expansion of $data |
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$data is an array ref containing elements that are either |
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- scalars that are other elements of the history hash to pass to $func |
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- ref to data to be passed untouched to $func |
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=cut |
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sub setup_prior_tries_hash { |
sub setup_prior_tries_hash { |
my ($func,$data) = @_; |
my ($func,$data) = @_; |
my $part = $Apache::inputtags::part; |
my $part = $Apache::inputtags::part; |