All the text between BAR and NOBAR will be expressed in barcode 3-9. No arguments.
Example:
{s=10} 11593468 {bar} 11593468 {nobar}
This example writes the number 11593468 and after that its value using 3-9 barcode.
It is important to know that the size of the font will determine the height of the barcodes. Modify the value of the size to
increase or decrease barcode height.
