Hello,
Take the following PlainTeX example:
---------------------------------------------------------
% \input hyphen % A
\showhyphens{regarding}
\bye
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This results in:
---------------------------------------------------------
This is LuaTeX, Version snapshot-0.28.0-2008070118 (Web2C 7.5.6)
(hyphenOther.tex
Underfull \hbox (badness 10000) in paragraph at lines 5--5
[][] \tenrm regarding
)
(see the transcript file for additional information)
No pages of output.
Transcript written on hyphenOther.log.
---------------------------------------------------------
When uncommenting line (A), the result is as follows:
---------------------------------------------------------
This is LuaTeX, Version snapshot-0.28.0-2008070118 (Web2C 7.5.6)
(hyphenOther.tex
(/usr/local/teTeX/share/texmf.tetex/tex/generic/hyphen/hyphen.tex)
Underfull \hbox (badness 10000) in paragraph at lines 5--5
[][] \tenrm re-gard-ing
)
(see the transcript file for additional information)
No pages of output.
Transcript written on hyphenOther.log.
---------------------------------------------------------
Compare with beta 0.27:
---------------------------------------------------------
This is LuaTeX, Version snapshot-0.27.0-2008062418 (Web2C 7.5.6)
(hyphenOther.tex
Underfull \hbox (badness 10000) in paragraph at lines 5--5
[][] \tenrm re-gard-ing
)
(see the transcript file for additional information)
No pages of output.
Transcript written on hyphenOther.log.
---------------------------------------------------------
So it seems that hyphenation patterns are not dumped into the format
file anymore.
Incidentally, contrary to what the manual says in section 9.5, the
format file is not compressed (or at least not all of it): When
opening it with a text editor, the hyphenation patterns, when using
beta 0.27, are contained as plain text. A quick test using Zip on the
PlainTeX format file reduces its size from 356K to 288K. Another test
with a format file of 34M (containing the 420,000-word list from the
dehyph-exptl project as hyphenation exceptions) shows a reduction to
~26M.
Jonathan
