I have a legacy client running V11 chui. They have some code that produces bar codes using an old Progress include file {barcode39.i}.

Recently it was discovered that a . (period) is being read through the code as a - (dash) so they contacted me for some help.

I determined that the variable that holds the binary code equivalent of the characters had the same value for . and for -.

010000101 /* . */
010000101 /* - */

So I figured finding the correct code and replacing it would work. I see that the correct code for . is 100101000 so I replaced that in the code.

The scanner does not read . at all now.

I am hoping someone out here uses the barcode39.i include file and has had better luck with it. If so, can someone/anyone update me on how to fix this issue.

I have attached the barcode.i code for reference.

Thanks so much,

Ross Anderson
nosredna@cogeco.ca

/******************************************************************************/
/* barcode39.i   Output a barcode string to be printed                        */
/******************************************************************************/

/*
Usage:

Define variable input-string as character    no-undo initial "001234501".
Define variable bar-code-string as character no-undo.

Run bar-code-39 (input  input-string,
                 input  "P030780",
                 output bar-code-string).

Put control bar-code-string.
*/

/*  Create bar-code-stringcode, 39 for HP
**
** The procedure creates ESC-sequences for a bar-code-stringcode in
** Code39 format
** The printer cursor position is restored after printing.
**
** Input:  input-string    as char no-undo.  The char string to translate.
**         code-spec       as char no-undo.  The bar-code spec. see later
**
** Output: bar-code-string as char no-undo.  The generated bar-code-stringcode
**
**
** Structure of code-spec:
**         1.    P for horizontal bar-code
**               L for vertical bar-code
**         2-3   width of small bar-codes and spaces in dots (norm 03)
**         4-5   width of wide bar-code and spaces in dots (norm 07-08)
**         6-    Height of bar-code in dots (norm 80)
*/

procedure bar-code-39:
  def input  parameter input-string     as char no-undo.
  def input  parameter code-spec        as char no-undo.
  def output parameter bar-code-string  as char no-undo.

  def var clr as log init true no-undo.
  def var wk  as char no-undo.
  def var drw as char no-undo.
  def var dir as char no-undo.
  def var kk  as char no-undo.
  def var att as char no-undo.
  def var kod as char no-undo
    init "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ.? *$/+%-".

  att =
    "100100001001100001101100000000110001100110000001110000000100101100100100" +
    "001100100000110100100001001001001001101001000000011001100011000001011000" +
    "000001101100001100001001100000011100100000011001000011101000010000010011" +
    "100010010001010010000000111100000110001000110000010110110000001011000001" +
    "111000000010010001110010000011010000010000101110000100011000100010010100" +
    "0101010000101000100100010100001010100100001010".

  def var ii  as int no-undo.
  def var jj  as int no-undo.
  def var ll  as int no-undo.
  def var brd as int no-undo.
  def var jst as int no-undo.

  assign ii = if substring (code-spec, 1, 1) = "P" then 1 else 2
         bar-code-string = "~E&f0S~E*c100G"                     
         drw = substring ("ab", ii, 1)                          
             + substring (code-spec, 6)                         
             + substring ("ba", ii, 1) + "P"                    
         dir = substring ("XY", ii, 1)                          
         kk  = "*" + input-string + "*".                        

  do ii = 1 to length (kk):
    assign  jj = index (kod, substring (kk, ii, 1)) * 9 - 8
            wk = substring (att, jj, 9) + "0".

    do ll = 1 to 10:
      assign brd = if substring(wk,ll,1) = "0" then 2 else 4
             bar-code-string = bar-code-string                                    
                 + (if clr then "~E*c" + substring (code-spec, brd, 2) + drw      
                    else "~E*p+" + string (integer (substring (code-spec, brd, 2))
                                 + jst) + dir)                                    
             jst = integer (substring (code-spec, brd, 2))                        
             clr = not clr.                                                       
    end. /* of looping 1 to 10 */
  end. /* of going through string 'kk' */
 
  assign bar-code-string = bar-code-string + "~E&f1S"
         wk = "".
end.