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Regular Expression Details

Title Test Find Pattern Title
Expression
^[-+]?[0-9]+[.]?[0-9]*([eE][-+]?[0-9]+)?$
Description
This matches floating point expression in a more rigorous way - accepts both exponent as well as non exponent notations.
Matches
123 | -123.35 | -123.35e-2
Non-Matches
abc | 123.32e | 123.32.3
Author Rating: Not yet rated. Srinivas Gummadi
Source
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Existing User Comments

Title: Leading decimals not allowed
Name: Jesse Pelton
Date: 5/24/2012 11:55:10 AM
Comment:
This pattern does not match inputs like ".9", "-.9", and "+.9". This first character after the optional sign must be a decimal digit.


Title: Doesn't work for all expressions
Name: Dave Uhrenholdt
Date: 10/20/2004 10:01:03 AM
Comment:
Doesn't work for .0


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