Tests whether a character is white space. Note that this function includes the following escape characters:

Note that the \v, \f and \r characters are not recognised by LSL but this function handles them.

///////////////////////////////////////////////////////////////////////////
//  Copyright (C) Wizardry and Steamworks 2014 - License: GNU GPLv3      //
///////////////////////////////////////////////////////////////////////////
integer wasIsSpace(string a) {
    if(a == "") return FALSE;
    integer x = llBase64ToInteger("AAAA" + 
        llStringToBase64(llGetSubString(a, 0, 0)));
    return x == 32 || x == 10 || x == 9 || x == 11 || x == 12 || x == 13;
}