Re: RegOops

On Oct 23, 2015, at 7:54 AM, Frank Arensmeier <farensmeier@gmail.com> wrote: > >> 23 okt 2015 kl. 14:44 skrev Karl DeSaulniers <karl@designdrumm.com>: >> >> Hello all, >> With the given string.. >> >> vehicle10-vehicle-name >> >> Running regex in a preg_match like >> >> "/(\w+)([0-9+]+)-(.*)/" >> >> I am getting. >> >> array( >> 0 => vehicle10-vehicle-name >> 1 => vehicle1 >> 2 => 0 >> 3 => vehicle-name >> ) >> >> If I change it to. >> >> "/(\D+)([0-9+]+)-(.*)/" >> >> it works as expected. >> >> array( >> 0 => vehicle10-vehicle-name >> 1 => vehicle >> 2 => 10 >> 3 => vehicle-name >> ) >> >> Why is the \w directive including a digit? >> Since when is the number 1 a word?? >> >> If anyone could enlighten me, I would greatly appreciate it. >> >> TIA >> >> Best, >> >> Karl DeSaulniers >> Design Drumm >> http://designdrumm.com >> > > Hi Karl! > > I am not able to pinpoint the exact definition in the official PCRE documentation right now > (http://www.pcre.org). But the short hand \w does in deed include numbers. As you can read here for > example (https://docs.oracle.com/javase/tutorial/essential/regex/pre_char_classes.html), > > \w A word character: [a-zA-Z_0-9] > > Although its already Friday, your pattern is working as expected. > > /frank > OH, ok, so the \w basically is the shorthand of [a-zA-Z_0-9]? That would make sense, however I think it is misleading as there are \D and \S which denote grabbing word and or digits respectfully. I thought that \w meant one 'word' character (not digit or special characters or space or new line, just a word), or at least that is what I have read in my searches, hence the question here. Thank for your response! Best, Karl DeSaulniers Design Drumm http://designdrumm.com