Mathematical operations on Arabic numbers

Hi Adnan

Sorry for the delay - I had not forgotten.

I have created a proof of concept that should get you started on your solution. This example will take the typed value using a standard keyboard using the Arabic language (not numeric as this stays as Decimal notation numbers).

This relies on a few basic assumptions (on my part as to the needs) I apologise if I have not interpreted this correctly, but hopefully this will help you.

This is what it does.

1. This will find any Arabic numbers which are swapped using regular expressions.
2. Find and matches any numeric blocks which are now in non-arabic numbers
3. Reverse any numeric block - so 123 becomes 321
4. The resulting string is returned
5. In this case shown in the label view.

Add this code to a blank window called win.

var lbl = Ti.UI.createLabel({
    font: {
        fontSize: 20
    },
    height: Ti.UI.SIZE,
    text: 'Result',
    top: 10,
    width: Ti.UI.SIZE
});
win1.add(lbl);
var txt = Ti.UI.createTextField({
    borderWidth: 1,
    font: {
        fontSize: 20
    },
    height: 50,
    top: 60,
    value: '\u0660\u0661\u0662+\u0663\u0664\u0665+\u0666\u0667', //123+456+67
    width: 200
});
win1.add(txt);
var btn = Ti.UI.createButton({
    font: {
        fontSize: 20
    },
    height: Ti.UI.SIZE,
    title: 'Try',
    top: 120,
    width: 200
});
win1.add(btn);
btn.addEventListener('click', function (E) {
    var val = txt.getValue();
 
    val = val.replace(/\u0660/gim, '0');
    val = val.replace(/\u0661/gim, '1');
    val = val.replace(/\u0662/gim, '2');
    val = val.replace(/\u0663/gim, '3');
    val = val.replace(/\u0664/gim, '4');
    val = val.replace(/\u0665/gim, '5');
    val = val.replace(/\u0666/gim, '6');
    val = val.replace(/\u0667/gim, '7');
    val = val.replace(/\u0668/gim, '8');
    val = val.replace(/\u0669/gim, '9');
 
    function reverseStr(str) {
        var s = "";
        var i = str.length;
        while (i>0) {
            s += str.substring(i-1,i);
            i--;
        }
        return s;
    }
    var sum = val;
    reg = new RegExp(/\d{1,10}/g);   
    var result;
    while((result = reg.exec(sum)) !== null) {
        sum = sum.replace(result[0], reverseStr(result[0]));
    }
 
 
    lbl.setText(sum);
});

You should be able run the eval command on the result so it will answer the equation that was typed.

Let me know if this helps.