[Tutor] matching a street address with regular expressions
alan.gauld at btinternet.com
Thu Oct 4 09:34:25 CEST 2007
"Christopher Spears" <cspears2002 at yahoo.com> wrote
> create a regular expression that will match a street
> address. Here is one of my attempts.
> Obviously, I can just create a pattern "\d+ \w+ \w+".
> However, the pattern would be useless if I had a
> street name like 3120 De la Cruz Boulevard. Any
Yes, don't go too far.
Matching addresses is a fantastically difficult thing
to do perfectly. There are several companies whose
only product is software to match and check addresses
and they sell it for hundreds of thousands of dollars
a license! They spend years developing and improving it.
Our suppllier is up to version 16 and they only release
new versions every 2 years...
Of course they are matching formats from countries
around the world and providing GUI management consoles
and MIS reports etc etc. But the core function of correctly
identifying valid addresses remains a hugely complex task.
Its a good idea to try just enough of it to realise how hard
it is. Then stop. :-)
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