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When man pages are formatted in UTF-8, .Fl is encoded as U+2212 "MINUS

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SIGN" instead of U+002D "HYPHEN-MINUS".  This is unfortunate for two
reasons: 1) this is not the character which is actually used on the
command line, and 2) it makes it impossible to search a man page for a
specific command-line option.

This patch fixes this, but there are other unresolved issues, such as
confusion between -, \- and hy: while the latter is always (and only)
used for hyphenation, both - and \- are used for negation and
subtraction, and \- is used for command-line options and sometimes
also for parenthesis.  IMHO, the correct Unicode characters are:

 - hyphenation: either U+2010 or U+00AD, most likely the former (the
   latter is the so-called soft hyphen, used to indicate a point at
   which a text processor is allowed to hyphenate a word)

 - negation and subtraction: U+2212

 - parenthesis: in English, U+2214, with spaces suppressed before and
   after; in some others (such as Norwegian), U+2213 with spaces
   retained.

 - command-line options: U+002D, because that is what is actually used
   on the command line.

However, fixing this would require extensive modifications to (at least)
the doc and man macro sets...

MFC after:	1 week
This commit is contained in:
Dag-Erling Smørgrav 2009-05-21 17:56:00 +00:00
parent fe45987e99
commit 62aa21ae86
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=192561
1 changed files with 1 additions and 1 deletions
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2
contrib/groff/font/devutf8/R.proto
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@ -726,7 +726,7 @@ st 24 0 0x220B
product 24 0 0x220F
coproduct 24 0 0x2210
sum 24 0 0x2211
\- 24 0 0x2212
\- 24 0 0x002D
mi "
-+ 24 0 0x2213
** 24 0 0x2217