//--------------------------------------
//--- 010 Editor v3.2.2 Script File
//
// File:StringPlus.1sc
// Author:N0VA8o.lau@gmail.com
// Revision:1.0
// Purpose:Each char of string plus or subtract a number
//--------------------------------------
const string title = "String Plus";
int64 adr, siz, out, index;
int actfile, newfile,  bits;
int iKey;
char tmp;
if (FileCount() == 0) {
  MessageBox(idOk, title, "No file is open.");
  return -1;
}

if (GetSelSize() <= 0) {
  adr = 0; siz = FileSize();
}
else {
  adr = GetSelStart(); siz = GetSelSize();
}

if (siz == 0) {
  MessageBox(idOk, title, "No bytes to process.");
  return -1;
}

if (siz == 0) {
  MessageBox(idOk, title, "No bytes to process.");
  return -1;
}

iKey = InputNumber(title, "Integer Please:", "0");
bits = 0; out = 0;
actfile = GetFileNum();
newfile = FileNew();
FileSelect(actfile);
index = adr;
while( index < adr + siz)
{
    
    FileSelect(actfile);
    tmp = ReadByte(index);
    FileSelect(newfile);
    tmp = tmp+iKey;
    WriteByte(out, tmp);
    index++;
    out++;
}

FileSelect(newfile);
SetCursorPos(FileSize());