regular expression

[Stefan Reiter]

Hi,

I need one function to validate streetnames and one to validate names.
I tried to write my own regular expression and to use preg_match,
but for some weird reason I can't get it to work.

Valid names should be:
Peter
Christian-Peter
Li
Li Yan Young
Li - Yan - Young
Li- Yan -Young - Mei

Valid streetnames should be:
Jackrippperstr. 10a
Jackrippperstr 9391 B
Jack-The - Ripper Str. 3
Jack -The- Ripper B
Jack -The- Ripper

Here are my regular expressions:
+++++++++++++++ +++++++++++++++ +++++++++++++++ +++
/*/////////////
///1. Names ///
/////////////*/

//At least 2 chars:
$twochars ="(A-Za-zßäüöÄÜÖ){2,}"; //Including german special chars
// Separator with space and or -
$separator= "([:space:]?-[:space:]?|[:space:])";
/*
(Name consists of at least 2 chars, optionally followed by one space
char and or - , followed by again at least 2 chars )+
*/
$name= "($twochars($se parator$twochar s)*)+";
if ( preg_match("/$name/",$value) )

+++++++++++++++ +++++++++++++++ +++++++++++++++ +++
/*///////////////////////////
///2. Streetname + number ///
///////////////////////////*/


//At least 2 chars:
$twochars ="(A-Za-zßäüöÄÜÖ){2,}"; //Including german special chars
// Separator with space and or -
$separator= "([:space:]?-[:space:]?|[:space:])";
// optionally Str. or Str or str or Str.
$str = "([Ss]tr|[Ss]tr.)?";
/*
The numbers (1-9 followed by 0-9 ) - zero or four times, followed by
space or not, optionally followed by a character.
*/
$nr = "((1-9)+(0-9)*){0,4}[:space:]?(A-Za-z)?";

$street= "($twochars($se parator$twochar s)*)+$str$nr";
if ( preg_match("/$street/",$value) ) ...
+++++++++++++++ +++++++++++++++ +++++++++++++++ +++

Have you any idea why this doesn't work?

Thanks,

Stefan

[Justin Koivisto]

Re: regular expression

Stefan Reiter wrote:
[color=blue]
> Here are my regular expressions:
> +++++++++++++++ +++++++++++++++ +++++++++++++++ +++
> /*/////////////
> ///1. Names ///
> /////////////*/
>
> //At least 2 chars:
> $twochars ="(A-Za-zßäüöÄÜÖ){2,}"; //Including german special chars[/color]

$twochars ='[A-Za-zßäüöÄÜÖ]{2,}';
[color=blue]
> // Separator with space and or -
> $separator= "([:space:]?-[:space:]?|[:space:])";[/color]

$separator= '[[:space:]-]?';
[color=blue]
> /*
> (Name consists of at least 2 chars, optionally followed by one space
> char and or - , followed by again at least 2 chars )+
> */
> $name= "($twochars($se parator$twochar s)*)+";[/color]

$name = '^'.$twochars.' ('.$separator.$ twochars.')*$';
[color=blue]
> if ( preg_match("/$name/",$value) )
>
> +++++++++++++++ +++++++++++++++ +++++++++++++++ +++
> /*///////////////////////////
> ///2. Streetname + number ///
> ///////////////////////////*/
>
>
> //At least 2 chars:
> $twochars ="(A-Za-zßäüöÄÜÖ){2,}"; //Including german special chars[/color]

same as above.. don't redefine it.
[color=blue]
> // Separator with space and or -
> $separator= "([:space:]?-[:space:]?|[:space:])";[/color]

same
[color=blue]
> // optionally Str. or Str or str or Str.
> $str = "([Ss]tr|[Ss]tr.)?";[/color]

$str = '([Ss]tr\.?)?';

What about "Ave.", "Lane", "Ln", "Street", "Blvd.", etc., etc., etc. ??
[color=blue]
> /*
> The numbers (1-9 followed by 0-9 ) - zero or four times, followed by
> space or not, optionally followed by a character.
> */
> $nr = "((1-9)+(0-9)*){0,4}[:space:]?(A-Za-z)?";[/color]

$nr = '([1-9][0-9]){0,4}[:space:]?[A-Za-z]?';

No German special chars here?
[color=blue]
> $street= "($twochars($se parator$twochar s)*)+$str$nr";[/color]

$street = '^('.$twochars. '('.$separator. $twochars.')*)+ '.$str.$nr.'$';
[color=blue]
> if ( preg_match("/$street/",$value) ) ...
> +++++++++++++++ +++++++++++++++ +++++++++++++++ +++
>
> Have you any idea why this doesn't work?[/color]

HTH

--
Justin Koivisto - justin@koivi.co m

http://koivi.com