Javascript regexp lets undesirable characters

Question

I'm using a regExp in my project but some how I'm getting some undesirable characters

my RegExp looks like this:

new RegExp("[א-ת,A-z,',','(',')','.','-',''']");

which supposed to avoid characters like \\ or []

but let my use one and more from (,),-,alphabets etc.

Unfortunately it doesnt happen

Which pattren includes both desirable and undesirable characters??

thanks for your help

Answer 1

Well your regular expression just says to match one "good" character (and incorrectly at that).

I think something closer to this would be what you want, though I'm not sure about the higher-page UTC characters:

var regexp = /^[א-תA-Za-z,()\-']*$/;

If the alefbet part doesn't work (it looks backwards to me, but I guess that's kind of a conundrum :-), try:

var regexp = /^[\u05DA-\05EAA-Za-z,()\-']*$/;

Might be good to tack an "i" (ignore case) modifier on the end too:

var regexp = /^[\u05DA-\05EAA-Za-z,()\-']*$/i;

This also does not handler the various diacritical marks; I don't know if you need those matched or not.

Answer 2

First of all, you don't need all those single quotes and commas. Second, you want A-Za-z , not. Az . The latter includes ASCII characters between "Z" and "a".

var re = new RegExp("[א-תA-Za-z,()\.'\s-]");