Extract Arabic text from mixed text in java

Question

i have a mixed text arabic , english , numbers & special charcters. How can i extract the arabic text only in java ?

Example :

مرحبا كيفك i'm fine and you كله تمام . كم عمرك . my age is 18

needed output :

مرحبا كيفك كله تمام كم عمرك 

Answer 1

The regular expression \p{InArabic} matches any Arabic letter. The regular expression \s matches any whitespace character. So if you only wish to see Arabic letters and spaces, you could use something like

myString.replaceAll("[^\\p{InArabic}\\s]", "");

to remove everything other than Arabic letters and whitespace.

Answer 2

write a regex statement that only accepts arabic characters. This one should get the job done : ^[\u0621-\u064A0-9 ]+$

it accepts all the arabic unicode characters, if that doesn't do exactly what you need, it at least gives you something to start with

Answer 3

Probably the simplest approach would be to look for characters in the range 0x600-0x6FF in the string. You should be able to do this with a regexp replace along the lines of

myString.replaceAll([^\\p{IsArabic}]);

(untested, and this requires Java 7 or later) but this would remove any characters from the string which aren't Arabic. Otherwise you'd need to replace \p{...} with \\x{600}-\\x{6ff} assuming I'm remembering my regexp hex syntax correctly.