st: Regular expressions

[Estrella Gomez <estrellastata@gmail.com>]

Hi,

I would like to do two modifications to two string variables using
regular expression:

1) I have a list of movie titles with a year included; for instance:
"Robin Hood (2010)". I would like to drop the years and the
parenthesis, so the final value should be "Robin Hood". The number of
words in the title varies a lot across movies

2) I have a variable indicating where the movie was produced. In some
cases there are several countries, for instance "UK, Germany, Canada,
Switzerland". I would like to generate one variable per country (1st
variable take value UK, 2nd Germany and so on). Again, the number of
countries per movie is not fixed; it varies from 1 to 4

Any suggestion?

Thanks a lot,
Estrella
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/