Hello
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 :) ).
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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")
***********************************
thanks in advance
scott
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