PS TEXT FORMAT Reference Manual

TFORMCVT: Converting From TGAL to TFORM
11387 Tandem Computers Incorporated E-9
Tips
The TFORMCVT translation of the ALT command is effectively the
translation of ALT ON ALWAYS since TFORM doesn’t care if page
numbering is in effect during alternation. If ALT is ON and page
numbering is off in the input file, alternation occurs in the TFORM
translation even though it would not in TGAL output.
In TGAL, when ALT is ON and TAG is in effect, the tag characters
appear on the same side as the page number. In TFORM, the tag
characters always appear on the right side of the page.
TFORMCVT follows the translation of ALT ON with updated header
and footer commands. If a HEAD command is in effect, TFORMCVT
updates it as:
\HEADER 1
\HEADER 1 EVEN " text "
\HEADER 1 ALL ODD "|| text "
If a SUBHEAD command is in effect, TFORMCVT updates it as:
\HEADER 2
\HEADER 2 EVEN " text "
\HEADER 2 ALL ODD "|| text "