version 1.174, 2007/08/10 18:16:28
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version 1.176, 2007/08/10 22:04:10
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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 |