[OSM-dev] extracting house-number from string

[Udo Giacomozzi]

Hello Stefan,

Tuesday, March 17, 2009, 1:51:36 PM, you wrote:

SB> "1st street 1234"

SB> Street = 1st street
SB> houseno = 1234

SB> I didn't see how the algo would prefer 1234 over 1st because both are numbers...

Well, you could give the last number precedence.

Or do you have an example where the house number is at the beginning and the
string ends with another number?

Either way, in a situation where you have two possibilities (either "1234"
is the house number or "1ST") it shouldn't be a problem to try both
addresses (ie. lookup in database). Seems rather simple to me.


By the way, is the input field for the city a different one, or can
the user put country + city + street + house number all in one string?

For example, Google understands this one:

  Via 4 Novembre 2, 25010 Limone sul Garda, Brescia, Lombardia, Italia

It also works omitting the "Via" (Italian for "Street"):

  4 Novembre 2, 25010 Limone sul Garda, Brescia, Lombardia, Italia

This means:
  (Via) 4 Novembre      <-- street name
  25010                 <-- ZIP code
  Limone sul Garda      <-- city
  Brescia               <-- province
  Lombardia             <-- region
  Italia                <-- guess what.. ;-)


Udo