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[bug #57448] groff will not break a line at a hard hyphen following some letter combinations

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  [bug #57448] groff will not break a line at a hard hyphen following some letter combinations Dave <INVALID.NOREPLY@gnu.org> - 2019-12-19 23:08 -0500

#1580 — [bug #57448] groff will not break a line at a hard hyphen following some letter combinations

Follow-up Comment #2, bug #57448 (project groff):

How it kerns characters elsewhere on the line should have no effect on whether
it is willing to break a line at a hard hyphen.  If it does, this is a bug.

groff will not break the line at a hyphen after these particular letter
combinations.  You can verify this by varying the line length from 1 to 1.99
inches, a hundredth of an inch at a time, to see the various places groff
breaks the line:

seq -w 0 99 | xargs -I FRACTION printf '.br\n.ll 1.FRACTIONi\nOne has the
DW-style switch.\n' | groff -a | fgrep One | uniq

(The above is all one line, though this bug tracker will probably break it.)

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