changeab.sh

#!/bin/bash
# A simple convertor for change the text from selection and replace all persian charachter with
# English charachter in clipboard.
# Just assign it to a key binding, with anything you like (i3 for example).
# I wrote this for http://linuxvaman.ir/

# Publishe under WTFPL
# fzerorubigd <fzero@rubi.gd> 2 Dec 2015

change_string() {
    persian=( ض ص ث ق ف غ ع ه خ ح ج چ ش س ی ب ل ا ت ن م ک گ ظ ط ز ر ذ د پ و ۱ ۲ ۳ ۴ ۵ ۶ ۷ ۸ ۹ ۰ ! ٬ ٫ ﷼ ٪ × ، ؛ )
    english=( q w e r t y u i o p \[ \] a s d f g h j k l \; \' z x c v b n m , 1 2 3 4 5 6 7 8 9 0 ! @ \# \$ % \^ \& \' )
    len=$(echo ${#english[*]})
    arg=$@
    for ((i=1 ; i < $len ; i++)) do
        arg=${arg//${persian[$i]}/${english[$i]}}
    done

    echo "$arg"
}

change_string $(xsel)|xclip -selection c
#sleep here is for the key binding. it is so fast, and normally, faster than you. 
# so, when this line is run, you are stil pressing the key binding. just 
# give it a rest until you move your lazy finger :)
sleep 1
xdotool type "$(change_string $(xsel))"