I noticed that the problem does not come from mapping. When I write ^^^^0643^^^^200d^^^^200d^^^^0643
in the text (with \lefthyphenmin=1) and \lccode"200D="200D and when I load a pattern ^^^^200d1^^^^200d I get no hyphenation at all, as if the ^^^^200d character is not allowed in hyphenation patterns, even though I took care to specify that it is of \catcode 12 and of \lccode equal to itself… And I did this in a file with no mapping at all. Any idea where it comes from? <http://www.imt-atlantique.fr/> Yannis HARALAMBOUS Professor Computer Science Department UMR CNRS 6285 Lab-STICC <http://perso.telecom-bretagne.eu/yannisharalambous/> <https://twitter.com/y_haralambous> <https://www.linkedin.com/in/yannis-haralambous-5529073?trk=hp-identity-name>Technopôle Brest-Iroise CS 83818 29238 Brest Cedex 3, France Une école de l'IMT <http://www.imt.fr/> A good attitude to the preparation of written mathematical exposition is to pretend that it is spoken. Pretend that you are explaining the subject to a friend on a long walk in the woods, with no paper available. (Paul R. Halmos)
