True about \d. But this regex doesn't match any housenumber in "3rd street". It matches [number][maybe a single letter][word boundary].
Greetings xeen On Fri, Mar 13, 2009 at 19:11, Marcus Wolschon <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Stefan Breunig schrieb: >> /[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". > > Hello Stefan, > I thought about such a regexp but the issue is > that in "5th street" it would match "5th" and there > is neither a house-number "5th" nor a street named "street". > > If we can`t find anything better I`ll probably > have to go this way and make special cases for > X+("st","nd","rd","th"). > I though that maybe someone else already encountered > this issue and we could discuss how he/she dealt with it. > (I am still quite puzzled how things like the freeform-address- > search in Google can actually work.) > > Sadly there are quite many address-formats. With > french having the house-number before the street > and the US with street-names that begin with numbers,... > it gets quite complicated. > > BTW: You should not use a-z but \D to stay unicode-compatible, > One developer of TS is russian and I would hate to break > address-search for cyrillic names for him ;) > > Marcus > >> >> >> On Fri, Mar 13, 2009 at 16:28, Marcus Wolschon >> <[email protected]> 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 >>> [email protected] http://lists.openstreetmap.org/listinfo/dev >>> >>> >> >> >> > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iEYEARECAAYFAkm6oeAACgkQf1hPnk3Z0cQkjgCguPQBMNwCSeORrsVfasYnjDTi > CV8Aniu340l+h1sr38g736zRdv9io78B > =cKpX > -----END PGP SIGNATURE----- > > -- Please encrypt your mail: http://mathphys.fsk.uni-heidelberg.de/~stefan/publickey.asc FP: 2620 E737 FD50 60AB 86B6 1B9D 3BFD AFFB 5B15 6893 _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
