PS TEXT FORMAT Reference Manual

Introduction to TFORM
11387 Tandem Computers Incorporated 3–123
SET JOIN Option
You can control the joining of lines with the SET JOIN command.
Joining is a feature of TFORM that involves lengthening or shortening
lines of text to fit within a certain text width.
SET JOIN ON
SET JOIN ON turns on line joining, which remains in effect until
TFORM encounters a SET JOIN OFF command. When joining is
ON, TFORM examines each input line in a paragraph. If a line is
too short, TFORM adds one or more words from the next line to
your current line. TFORM breaks lines that are too long and adds
the word or words that didn’t fit to the next line.
In addition, when joining is ON, TFORM treats text as being
grouped into words, sentences, and paragraphs. It adjusts all
horizontal white space (for example, spaces between words) and
vertical white space (blank lines) according to the rules you specify
with the STYLE SENTENCE and STYLE PARAGRAPH commands,
which are normally added at the start of your document.
A blank input line or any of the commands that signal the start of a
new paragraph (BREAK PARAGRAPHS, FOOTER, HEADER,
NEW, STYLE, and TITLE) stops joining. An input line that contains
nothing but a command trigger, and any of the commands that
cause a mandatory line break (BREAK, CENTER, DEFINE, KEEP,
SET, SPACE, and VERBATIM), also stops joining. TFORM resumes
line joining at the start of the next text line.
SET JOIN OFF
SET JOIN OFF turns off line joining. It also effectively turns off line
justification (see below) if it is on, since joining is essential to the
operation of the right-justification feature. If you turn joining on
again, justification resumes (if justification was on before, and if
you didn’t explicitly turn it off in the meantime).
The default condition is SET JOIN OFF, when TFORM operates in
the stand-alone mode, and SET JOIN ON, when running with
T-TEXT.