Regexp matchich if string with street name has orientation number too.

NumberMatching.php

<?php

/**
 *
 * Regexp matchich if string with street name has orientation number too.
 * Rules are for Czech Republic orientation numbers:
 *  a) number for 0-999
 *  b) may be supplemented by one letter
 * @link http://www.czso.cz/csu/rso.nsf/i/cislo_orientacni
 *
 * @author: Ondřej Profant <ondrej.profant <> gmail.com>, 2013
 * 
 */

$strings = array (
  "Šternberkova",
  "Šternberkova 10",
  "Šternberkova 2350/10",
  "Pod Sychrovem II",
  "Pod Sychrovem II 30",
  "Ulice 29",
  "Ulice 29b",
  "Ulice 29ab"
);

$pattern = "|(\d)+\w?$|";

foreach( $strings as $s) {
  echo( (preg_match($pattern, trim($s)) ? "yes" : "no") . "\t$s\n");
}

V Nette¨forms:

$this->addText("street", "Ulice a č. orientační:")
       ->addRule(Form::MAX_LENGTH, 'Jméno ulice nesmí být delší než %d znaků', 36)
       ->addRule(Form::PATTERN, 'Vyplňte ulici a číslo orientační', '^[\w ]* (\d)+\w?$')