On 04 Jun 2010, at 14:28, Srinivas Golyalla wrote:
Can u help me in simple regular expression that will match the string ‘123_456_7890’ but not ‘123_456_789’.
The thing you're asking is not very specific, there's a lot to be interpreted, but this might be what you are looking for: \d{3}_\d{3}_ \d{4}
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