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$fill-mode(5)
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NAME
SYNOPSIS
$fill-mode justification; Default is N
justification b | c | l | n | o | r | B | C | L | N | R
DESCRIPTION
$fill-mode defines the justification mode i.e. left/right/both/... The default value is none automatic (N). The modes available are:-
b Both
Enables left and right margin justification.
c Center
Enables center justification.
l Left
Enables left justification.
n None
No filling is performed, adjacent lines are not merged into a single line. This subtly different from left justification which fills lines to the
$fill-col(5).
o One Line
Enables the filling of the paragraph to a single line. Typically used to prepare a file for transfer to a word processing package.
r Right
Enables right justification.
B Both (automatic)
Automatically determines the mode, defaulting to left and right (both) justification.
C Center (automatic)
Automatically determines the mode, defaulting to center justification.
L Left (automatic)
Automatically determines the mode, defaulting to left justification.
N None (automatic)
Automatically determines the mode, defaults to both and not none.
R Right (automatic)
Automatically determines the mode, defaulting to right justification.
The lines are automatically justified only when the justification mode
justify(2m) is enabled. Justification is performed between the left and right margins, defined as 0 and
$fill-col(5) respectively.
Automatic Filling
Automatic filling is performed when the mode $fill-mode is specified in upper case. The format of the line (and adjacent lines) is interrogated and an informed guess is made as to the expected formating which is then adopted. The criteria for automatic formatting is defined as follows:-
center
If the left and right margins contain approximately the same amount of white space +/-1 character then the paragraph is centered.
right
If the text commences past half of the
$fill-col(5) (i.e. first half of the line comprises white space) AND the line extends to, or past, the $fill-col then the paragraph is assumed to be right justified.
none
If the text commences in column 0 and occupies less than half of the line then the paragraph is assumed to be not justified. (i.e. left justified, but consecutive lines of the paragraph are not filled)
default
If none of the above criteria are met then the default mode is adopted, as determined by the lower-case value of the $fill-mode value.
SEE ALSO
(c) Copyright JASSPA 1999
Last Modified: 1998/09/03
Generated On: 1999/12/01