"76(4|5).3"
and
"^76(4|5).3"
both seem to work here. What's that "V" doing?
Nick
[email protected]
scott hankins
> I am trying to use the new regex functions and am having some issues.
>
> I am familiar (but not an expert) with regular expressions in Perl and
> I am problems applying that knowledge in Stata. Does anyone know how
> regular expressions are implemented in Stata? Ideally, I would like
> more than "Regular expression syntax is based on Henry Spencer's NFA
> algorithm and as such, is nearly identical to the POSIX.2 standard."
> as I have not been able to find a clear exposition of the POSIX.2
> standard online (I am sure there is one, I just can't find it :) ).
>
>
> ***********************************
> here is my problem
>
> pdx
> 76403
> 76403
> 76513
> 76503
>
>
> I tried the following code but it did not find any matches, this
> should find all 4 of the above occurrences.
>
> replace weight = 3 if regexm(pdx,"V76(4|5).3")
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