Yes, I probably should have written ‘Would it be time consuming etc… ?’ :-)
In any case, I had a try to the test file, and it works very well.

Thanks for your very swift reply.

Best regards

Joseph Canedo

From: pragma@wxs.nl
Sent: ‎Sunday‎, ‎May‎ ‎29‎, ‎2016 ‎5‎:‎18‎ ‎PM
To: ntg-context@ntg.nl

On 5/29/2016 11:40 AM, josephcanedo@gmail.com wrote:
> Dear all,
>
> I use the nifty ‘firstline’ feature ConTeXt offers (using a larger font
> size, line mode, 1 line only) and I notice that the last word of the
> first line is never hyphenated even if doing so could reduce underful in
> the first line. From typo-fln.lua it looks like that’s expected as the
> decision to break the first line happens only at nodes which are not
> glyphs, disc_nodes or kern nodes. There is a comment saying it could be
> added some option to handle disc nodes. I’d be happy to add such option
> but do not have enough knowledge in nodes manipulation in luatex,
> especially those related to hyphenation. Would it be very difficult to
> add such option please ?

depends on what one finds 'difficult' ... by now i can probably do most
i want at that level in which difficult is replace by 'just takes time';
also, one needs to keep in mind that trickery like this also needs to
cooperate with other mechanisms

i'll send you a file to test (no beta as i'm cleaning up some display math)

> I post a MWE showing some extreme non real non sensible case, to double
> check that hyphenation is never performed.
>
> \definefirstline[FirstLine][alternative=line, style=\tfd] % exegerate size
>
> \starttext
>
> % exagerated case as MWE
>
> \setfirstline[FirstLine] A few words larger
> largestwordwordlongwordthatcouldbehyphenated bar bar.
> A few words larger largest word word foo bar word bar bar. A few words
> larger largest
> word word foo bar word bar bar. A few words larger largest word word foo
> bar word bar bar.
>
> \stoptext
>
> Thanks a lot,
>
> Best regards
>
> Joseph Canedo
>
>
>
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