[tex-hyphen] right/left hyphenmin

[Vladimir Volovich]

"MM" == Mojca Miklavec writes:

 MM> There are some now extra weird patterns using quillements just in
 MM> order to prevent weird breaks, but I agree that it's probably a
 MM> wrong lccode. (On the first place: XeTeX should complain that » in
 MM> patterns is not a letter, but it doesn't. It only complains when it
 MM> hits an apostrophe. Do not ask me how mapping=tex-text which maps '
 MM> to some unicode apostrophe handles that case.)

it looks like a bug in xetex: it should not set lccode for the
guillemets, but it does. moreover it also sets the uccode for them
pointing to control codes:

*\showthe\lccode`\^^^^00ab
> 171.

*\showthe\uccode`\^^^^00ab
> 139.

*\showthe\lccode`\^^^^00bb
> 187.

*\showthe\uccode`\^^^^00bb
> 155.

Best,
v.