static boolean isEscape(str, i) {
    if (i < 0 || str.charAt(i) != '\\')
        return false;
    else 
        return !isEscape(str, i-1);
}
static boolean isQuote(str, i) {
    if (i < 0 || str.charAt(i) != '"')
        return false;
    else if ( i > 1 && i+1 < str.length() && 
              str.charAt(i-1) == '\'' && str.charAt(i+1) == '\'' )
        return false;
    else
        return !isEscape(str, i-1);
}
static void selectStr(JEditTextArea t) {
    oldLeft = oldRight = t.getCaretPosition();
    if (t.getSelectionCount() > 0) {
        oldLeft = t.getSelection()[0].getStart();
        oldRight = t.getSelection()[0].getEnd();
    }
    
    tex = t.getText();
    len = tex.length(); if (len == 0) return;
    car = t.getCaretPosition();
    left = car - 1; right = car;
    
    while (left >= 0 && !isQuote(tex, left))
        left--;
    while (right < len && !isQuote(tex, right))
        right++;
    
    if (oldLeft == left+1 && oldRight == right) {
        t.setCaretPosition(right+1 > len ? len : right+1);
        t.setSelection(new Selection.Range( left < 0 ? 0 : left, 
                                            right+1 > len ? len : right+1));
    }
    else
        t.setSelection(new Selection.Range(left+1, right));
}
selectStr(textArea);