We don't do hyphenation, but we allow breaking the line at hyphens that are

already there in the middle of words.  So far, we only allowed this on text
lines.  Now it turns out some macros allow this for their arguments, too,
in particular .Nd and most of the .%? citation macros.

Issue found by Franco Fichtner <franco at lastsummer dot de> while doing
systematic groff-mandoc comparisons in the DragonFly base system, THANKS!

While here, garbage collect two empty prevalidator function pointer lists
and sort a couple of function declarations.

1 files changed, 11 insertions, 0 deletions

diff --git a/regress/usr.bin/mandoc/mdoc/Nd/hyph.in b/regress/usr.bin/mandoc/mdoc/Nd/hyph.in
new file mode 100644
index 00000000000..7922835d0db
--- /dev/null
+++ b/regress/usr.bin/mandoc/mdoc/Nd/hyph.in
@@ -0,0 +1,11 @@
+.Dd October 5, 2013
+.Dt ND-HYPH 1
+.Os OpenBSD
+.Sh NAME
+.Nm Nd-hyph
+.Nd when there is already a hyphen within the the word, \
+line-breaking is permitted at that place
+.Sh DESCRIPTION
+Even in the document description line in the
+.Sx NAME
+section.