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Re: [Groff] space width

From: Werner LEMBERG
Subject: Re: [Groff] space width
Date: Sun, 26 Jan 2014 07:38:08 +0100 (CET)

> I think it's [.tfk] a poorly implemented request.

Well, it's a cheap implementation.

> Since the documentation states one of the problems -- "the track
> kerning amount is added even to the rightmost glyph in a line" -- I
> suppose this can't technically be called a bug, but there would seem
> to be almost no situations where this would be desired behavior.
> And the suggested workaround -- "increase the line length by the
> same amount to compensate it" -- is unworkable for a number of
> reasons.  (Two reasons are that "the same amount," in the general
> case, requires a ponderous calculation to determine; and that using
> .ll to change the line length doesn't even take effect until the
> next line.)

The only real solution is to completely redesign the layout engine,
switching to a TeX-like paragraph handling algorithm.


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