PS TEXT FORMAT Reference Manual

TFORM Messages
11387 Tandem Computers Incorporated B-15
UNKNOWN ESCAPE CODE ENCOUNTERED
A trigger character, not in the first character position, is followed by
something that doesn’t resemble any known rendition control code (the
key in this case is the left parenthesis that begins a rendition control;
TFORM simply treats as text a trigger followed by unrecognizable
characters with no parenthesis).
UNRECOGNIZED KEYWORD
A command contains an entity that doesn’t resemble any keyword the
command expects to see.
VALUE NOT IN HALF-LINES
The SET SPACING command can adjust interline spacing in whole- or
half-line increments only (1, 1.5, and so on).
VALUE OUT OF RANGE
A value has been supplied to a command or function that is outside the
limits set for that entity. See Appendix C for a summary of maximum and
minimum limits.
WORD WAS LONGER THAN TEXT AREA WIDTH
When joining is on but hyphenation is off, a word can be too long to fit
within the set line width. This is especially likely if words are joined by
mandatory-space (\#) metacharacters to create one huge word.