HPlogo SORT-MERGE/XL Programmer's Guide > Chapter 3 Input and Output by Record

Record Input

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Record input is useful for sorting information that is entered interactively or produced internally by a program. To input records to SORT/XL you use the HPSORTINPUT intrinsic.

MERGE/XL does not allow record input. The syntax of HPSORTINPUT is: 
  HPSORTINPUT (status, buffer, length);
The buffer parameter contains the record to be input.

NOTE: The buffer parameter is a character (byte) array. If your record contains other data types, you must build buffer byte by byte.

The length parameter contains the length of the record.

NOTE: This value must not be greater than the value of the reclength parameter in the HPSORTINIT intrinsic.

An example of using HPSORTINPUT follows: 
  var
    status : INTEGER;
    buffer : packed array [1..80] of CHAR;
    length : INTEGER;
       .
       .
       .
  HPSORTINPUT (status, buffer, length);
To use record input:

  • The reclength parameter in HPSORTINIT must be specified.

  • The inputfiles parameter in HPSORTINIT must not be specified.



Using Record Input and Output

Example of Record Input