[bug #62042] [man]: want designed, documented CHECKSTYLE feature

[G. Branden Robinson]

Follow-up Comment #12, bug #62042 (project groff):

Thanks for following up, Alex.  It was my fault.  I misspelled the name of the
leading space(s) macro I offered you in comment #8.

Also, in case you _don't_ want to throw away the output with `-z`, it is
helpful to append to the existing end-of-input macro used by the man(7)
package instead of replacing it.  I overlooked this in my original proposed
solution.

Here's a transcript of things working, I think.


$ cat EXPERIMENTS/landmine.man 
.TH landmine 1 2022-05-20 "groff test suite"
.SH Name
landmine \- blow up
.SH Description
 Here's a paragraph with a leading space.

And this is a new paragraph,
because that was a blank line.
$ cat EXPERIMENTS/deadly.tmac 
$ cat EXPERIMENTS/deadly.tmac 
.am an-style-warn
. ds LANDMINE\"
..
.de end-of-input-macro
. if d LANDMINE .ab found style problems; aborting
..
.am an-end
.  end-of-input-macro
..
$ cat EXPERIMENTS/checkstyle-alx.tmac 
.de1 an-blank-line-trap
. sp
..
.
.de1 an-leading-space-trap
. nop \h'\\n[lss]u'\c
..
$ ./build/test-groff -T utf8 -z -man -rCHECKSTYLE=3 -M EXPERIMENTS -m
checkstyle-alx -m deadly EXPERIMENTS/landmine.man
$ ./build/test-groff -T utf8 -man -rCHECKSTYLE=3 -M EXPERIMENTS -m
checkstyle-alx -m deadly EXPERIMENTS/landmine.man 
landmine(1)                 General Commands Manual               
landmine(1)

Name
       landmine - blow up

Description
        Here’s a paragraph with a leading space.

       And this is a new paragraph, because that was a blank line.

groff test suite                  2022‐05‐20                      
landmine(1)


[comment #11 comment #11:]
> Hi Branden,
> 
> [comment #10 comment #10:]
> > I am confused.  This appears to be working exactly as I intended.  Did I
misunderstand what you wanted?
> 
> Yup, check <checkstyle.tmac>; it's supposed to cancel the effects of
<deadly.tmac> for leading spaces and blank lines, isn't it?
> 
> But I still die when I step on the landmine :(


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