[OSM-dev] extracting house-number from string

[Stefan Breunig]

/[0-9]+[a-z]?(?:$|\b)/i

I guess a regular expression should be suitable. The above is from my
head and untested.
[0-9]+     – matches any amount of numbers
[a-z]?     – optionally matches a letter
(?:$|\b)   – either matches the end of the string or a word boundary
(space, dot, etc.)
/i           – search case insensitve

Should work for the examples you gave. You might want to limit the
[a-z] to [a-l] because I haven't even heard of an "123 f", so it
ignores some of the typos (i.e. 3r avenue). No idea how that works for
languages other than English. The regex will find "5" as housenumber
if someone e.g. writes "5. avenue".


On Fri, Mar 13, 2009 at 16:28, Marcus Wolschon <Marcus at wolschon.biz> wrote:
> Hello,
>
> does anyone know a good algorithm to extract
> the house-number from a string containing
> street-name and house-number?
> Cases coollected so far:
>
>  // "xyz 12"
>        // "xyz 12b"
>        // "11b xyz"
>        // "11 xyz"
>        // "xyz"
>        // "5th avenue"
>        // "3rd avenue"
>        // "2nd avenue"
>        // "1st avenue"
>
> I need it for adding routing to house-numbers to the Traveling
> Salesman -navigator.
>
>
> Marcus
>
> _______________________________________________
> dev mailing list
> dev at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/dev
>



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