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Regular Expression Details

Title Test Find Pattern Title
Expression
([0-9]+\.[0-9]*)|([0-9]*\.[0-9]+)|([0-9]+)
Description
This is just a very simple matcher for real numbers.
Matches
123.456 | .123 | 123
Non-Matches
. | apple | pear
Author Rating: The rating for this expression. Paul DeMarco
Source
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Existing User Comments

Title: word and number
Name: Luca
Date: 9/16/2008 9:15:35 AM
Comment:
Hi, works fine, but this expression is getting the number 13 from TMGC13, How can I eliminate this?


Title: simple matcher for real numbers
Name: THulsey
Date: 7/12/2005 6:29:45 PM
Comment:
good -- simple is useful


Title: Or you might be looking for a single line match
Name: Paul DeMarco
Date: 6/28/2005 7:39:25 AM
Comment:
Also if you are looking for a single line match just change the expression to this: ^(([0-9]+\.[0-9]*)|([0-9]*\.[0-9]+)|([0-9]+))$


Title: SS
Name: Paul DeMarco
Date: 6/28/2005 7:29:36 AM
Comment:
You are probably misreading the set brackets. There is a special meaning for the hyphen '-' in this case. It is used as a range operator. [0-9] means '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' not '0', '-', '9' Short answer: '123-45' is not a real number.


Title: Real expression
Name: SS
Date: 6/27/2005 4:34:25 PM
Comment:
Why this is failing for patter like 123-05?


Title: Real expression
Name: SS
Date: 6/27/2005 4:33:21 PM
Comment:
why this is failing for patters like 123-05 ?


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