regular expressions for folder name

[stevet26]

I have come up with a regular expression.

\w+\137+

This allows 'newFolder_' but not 'newFolder_New', 'newFolder_New_New' or just 'newFolder'

What I am trying to achive is regular expression which checks that only numbers, letters and _ have been used in the string. So, that all of the above examples would be accepted.

I have tried a number of combinations but I just can't work this out. Any help would be much appreciated.

Thanks in advance.

 

[ca8msm]

I find regular expressions confusing a lot of the time as well! Try using a program such as the one found at

http://sourceforge.net/projects/regulator/

which has come in handy for me.


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