PS TEXT FORMAT Reference Manual

TFORMCVT: Converting From TGAL to TFORM
11387 Tandem Computers Incorporated E-17
\CENTER B
The TFORMCVT output is:
\CENTER BLANK
\CENTER \
The TFORMCVT output is:
\CENTER COMMAND
Tips
To center overstruck lines in TGAL, the CENTER command must
specify number of overprinting lines as well as the number of original
text lines. Since the TFORM CENTER command does not work in this
way, text lines following an OV command may be included in the
scope of a CENTER command and be centered.
Conversion of the CENTER number command from TGAL to TFORM is
not accurate if a TGAL OV command occurs within the scope of the
CENTER command. TGAL counts each text line governed by the OV
command as a line to be centered. TFORMCVT processes the OV
command first, reducing all text lines governed by it to one line; when
it then processes the CENTER command, it centers additional lines of
text.