On 3/21/2016 8:14 PM, Jan Tosovsky wrote:
Dear All,
when paragraphs are separated by indenting the first line (instead of an
empty line), these rules should be followed:
(1) the last line lenght is greater than the left indent
xxxxxxxxxxxxxxxx
xxxx
xxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx
(2) the last line is shorter than block width
xxxxxxxxxxxxxxxx
xxxxxxxxxxxxxx
xxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx
you need to keep in mind that what would work out well for one specific
case will not look nice in general as the last line filling is just one
of the aspects ... so, your last line + following first line might look
okay (according to whatever rules and criteria) but then, as you also
need to increase the tolerance and enable stretch to permit that
solution to be found, the rest might look like crap
it's the same for successive hyphenation and club/widow: any whole
document setting that is done to get rid of one or two odd cases will
often make the rest of the text look bad
this is a side effect of focusing on a specific typographical aspect
whereby ignoring the rest combined with fully automated typesetting
of course one can have extensive discussions about how things should
look right but one cannot ignore the text itself then: adding a few
words or rephrasing is often a better way out
(the same applies to fonts: one can stress the virtues of some advanced
kerning between two glyphs but at the same time be blind for the cases
where it doesn't happen)
(ad 1) Some suggestions can be found in
http://tex.stackexchange.com/questions/28357/ensure-minimal-length-of-last-l
ine - but to be honest, it is not very clear to me how to apply it and even
combine with (2)
(ad 2) This can be done using \parfillskip XXpt plus 1fil (where XX is
required gap)
setting the XXpt is tricky as it might lead to underful or overful cases
when that amount start interfering with an optimal solution (as it's
seen as acceptable overflow in some direction)
I'd be grateful for any command which would set this globally for all
paragraphs. Partly requested here http://tracker.luatex.org/view.php?id=885
One could set
(a) minimum length - default=2*indent
(b) minimum gap - default=indent
(c) minimum block width where (a) and (b) are still to be applied -
default=2*a+b
any heuristic that works for one case will make another worse (when
applied to a whole document)
(ad c) if there are narrower blocks within the document (e.g. blockquotes),
we should still have some room for typesetting the last line content. If the
area width is insufficient, the last line would be typeset without these
(a+b) restrictions.
In meantime, any suggestion how to combine a+b manually are welcome.
it's hard to envision an interface, maybe some extra key in setupalign
\setupindenting[big] \indenting[yes]
\edef\ward{\cldloadfile{ward}}
\setupalign[verytolerant,stretch]
\dorecurse{100}{
\hsize\dimexpr\textwidth-#1mm\relax
\parfillskip \zeropoint plus 1fil\relax
\ward \par
\parfillskip \zeropoint plus \dimexpr\availablehsize-3\parindent\relax
\ward \par
\startnarrower[left]
\parfillskip \zeropoint plus 1fil\relax
\ward \par
\stopnarrower
\startnarrower[left]
\parfillskip \zeropoint plus
\dimexpr\availablehsize-3\parindent\relax
\ward \par
\stopnarrower
\page
}
The 2*indent is not enough in most cases.
Actually, in context another mechanism can help:
\definehyphenationfeatures
[words]
[rightwords=3,
lefthyphenmin=4,
righthyphenmin=4]
\enabletrackers[hyphenator.visualize]
\setupalign[verytolerant,stretch]
\dontcomplain
\sethyphenationfeatures
[words]
\setuphyphenation
[method=traditional]
\dorecurse{100}{\hsize\dimexpr\textwidth-#1mm\relax \input tufte \page}
\stoptext
currently this doesn't discourage breaks between the last words but i'll
add an option for that (chars or words in that case, that is the
question) ... the reason for this mechanism is not so much the length
but more the fact that one doesn't want an (even long) last word
hyphenated.
Hans
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Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
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