Adrian,
hyphenation with original tex-the-program, and with its descendants such
as pdftex and xetex (luatex is an exception) with or without the
corresponding latex format, is inhibited after an explicit or an
implicit font change (this is why it does not work after a sectioning
command, and when certain macros are too close to the end of a string
that might be a word; this seems to be your case. You might leave that
\paragraph{ddd} in place and \flushleft in place if you put some glue
around the the word; try this:
\paragraph{ddd}\hskip 1sp
ddd
\hskip1sp\flushleft
(in place of 1sp, you might specify a zero width glue blob: \hskip0pt;
it should work the same).
What I said at the beginning is written in clearer words in appendix H
of the TeXbook.
Claudio
On 23/08/2016 11:12, Adrian Fronda wrote:
Thank you Arthur for your idea.
The problem is that no word is hyphenated after the lines quoted below. Also
when I comment out \flushleft, the hyphenating does happen.
Again, many thanks,
Adrian
On 22 Aug 2016, at 17:11, Arthur Reutenauer <[email protected]>
wrote:
If before the word to be hyphenated I have the two subsequent commands:
\paragraph{ddd}
ddd
\flushleft
then that blocks any sort of hypenating. Commenting out any of these two
commands solves the problem.
It’s likely that your problem is simply a consequence of TeX not
hyphenating the first word in a paragraph (except for LuaTeX), and you
may run into this in other situations.
Best,
Arthur
