ng-pattern not working correctly

Question

I have an input where I want to test if the inserted text is only in Arabic characters as following :

ng-pattern="/^([\u0600-\u06ff]|[\u0750-\u077f]|[\ufb50-\ufbc1]|[\ufbd3-\ufd3f]|[\ufd50-\ufd8f]|[\ufd92-\ufdc7]|[\ufe70-\ufefc]|[\ufdf0-\ufdfd]|[ ])*$/g"

this input works and accepts only Arabic values but it only accepts values that have a length of an odd number, for example when I type : عماد which has 4 characters it wont work but when I type : أسماء which has 5 characters it works.

this is my jsfiddle :

http://jsfiddle.net/2dznptry/

so why do I get this behavior ?

Answer 1

Working Demo

Use following pattern:

ng-pattern="/^[\u0621-\u064A\u0660-\u0669 ]+$/"

For detail, have a look at Regular Expression Arabic characters and numbers only