PS TEXT FORMAT Reference Manual

TFORMCVT: Converting From TGAL to TFORM
11387 Tandem Computers Incorporated E-3
Differences in
Command Scope
TFORMCVT does not account for the differences in scope algorithms
between TGAL and TFORM; you should therefore be aware of those
differences. TGAL uses the concept of “recency”; that is, the scope of a
given command depends on how recently it was stated. TFORM simply
uses the scope of each command. In the following example, the second
TGAL CENTER command supersedes the first, while the second CENTER
command in TFORM is simply an occurrence within the scope of the first.
TGAL Input TFORM Input
\center b \center blank
line 1 line 1
\center 1 \center 1
line 2 line 2
line 3 line 3
line 4 line 4
The TGAL output looks like this:
line 1
line 2
line 3
line 4
But the TFORM output looks like this:
line 1
line 2
line 3
line 4