TLEs in mixed-mode data input files

AFP does not explicitly allow TLE structured fields in mixed-mode documents (see the Advanced Function Presentation: Programming Guide and Line Data Reference, S544-3884). ACIF tolerates TLEs and passes them to the output file; however, because their use in line data is not architected, users must be aware that they might not get the results they want. For example:

  • No conditional processing is done on TLE structured fields; they are written where they are received.
  • If a page is already started, the TLEs are stored in the page.
  • If outside of a page, the TLEs are written between pages.
  • The same processing applies to Link Logical Element (LLE) structured fields in a mixed-mode document.

The following examples illustrate the processing that is done on TLEs