Hi Tom,
At 2023-07-08T10:10:01+0000, Tom Schwindl wrote:
> On Sat Jul 8, 2023 at 5:11 AM CEST, наб wrote:
> > diff --git a/man3/regex.3 b/man3/regex.3
> > index 13e540b22..630c0369d 100644
> > --- a/man3/regex.3
> > +++ b/man3/regex.3
> > @@ -109,7 +109,7 @@ .SS Compilation
> > Match-any-character operators don't match a newline.
> > .IP
> > A nonmatching list
> > -.RB ( [\[ha]...] )
> > +.RB ( [\[ha]...\&] )
> > not containing a newline does not match a newline.
> > .IP
> > Match-beginning-of-line operator
>
> I cannot reproduce this on my system; only one space is rendered.
You may have the inter-sentence space amount configured to zero.[1]
I get the extra space with all of DWB 3.3 nroff, Heirloom Doctools
nroff, mandoc, and groff.
$ printf '.ll 100n\nA nonmatching list\n([\(ha...])\nnot containing a newline does not match a newline.\n' | groff -Tascii | cat -s
A nonmatching list ([^...]) not containing a newline does not match a newline.
[cd DWB][2]
$ printf '.ll 100n\nA nonmatching list\n([\(ha...])\nnot containing a newline does not match a newline.\n' | DWBHOME=. ./bin/nroff | cat -s
A nonmatching list ([...]) not containing a newline does not match a newline.
[cd Heirloom]
$ printf '.ll 100n\nA nonmatching list\n([\(ha...])\nnot containing a newline does not match a newline.\n' | ./bin/nroff | cat -s
A nonmatching list ([^...]) not containing a newline does not match a newline.
$ printf '.ll 100n\nA nonmatching list\n([\(ha...])\nnot containing a newline does not match a newline.\n' | mandoc | cat -s
() ()
A nonmatching list ([^...]) not containing a newline does not match a newline.
()
Regards,
Branden
[1] Adding the following line to your man.local file in a groff
installation would do the trick.
.ss 12 0
In groff, this is also the default for several "groff locales",
including "cs", "de", "fr", "sv", and, new in groff 1.23.0, "it".
[2] I respelled the \[ha] special character escape sequence in legacy
form for greater portability, but the "ha" special character _name_
is not recognized by DWB troff (which has not been maintained for
about 30 years).
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