[tex-k] ligatures and explicit kerns
sh-list at posteo.net
Wed Oct 1 18:06:23 CEST 2014
in the TeXbook, the answer to exercise 5.1 (the shelfful exercise)
contains a sentence
Appendix H points out that ligatures are put into a hyphenated
word that contains no “explicit kerns,” and an italic correction
is an explicit kern.
I didn't find the place in appendix H the quote refers to, so pointers
would be appreciated.
Anyway, as I understand the quote, ligatures won't be inserted in words
that do contain explicit kerns. That is, to suppress multiple ligatures
within a word, it should be enough to insert just /one/ italic
correction (between two of the ligature candidates). Though, a test
turns out that this is not the case.
outputs the word with two separate letters f but the fi ligature
applied. Could anybody please shed some light on the quote above?
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