[Texmacs-dev] Kerning Bug

[Aleksandr Dobkin]

As I was reviewing the display of the Times (URW Nimbus Roman) type in TeXmacs, I noticed quotation marks were not being positioned correctly. It turns out TeXmacs breaks up words up by whitespace and punctuation marks and runs the ligature-kerning algorithm on individual words only. However, this means that if a punctuation mark occurs next to a letter, it will not be kerned.

The problem is in the function text_language_rep::advance() in the file System/Language/text_language.cpp.

The simplest way to fix this bug would to count punctuation marks as being regular text. Is there a problem with this approach?