[bug #44530] [pic] some dotted/dashed lines come out solid

[G. Branden Robinson]

Update of bug #44530 (project groff):

                  Status:                    None => Need Info              
                 Summary: Some dotted/dashed pic lines come out solid => [pic]
some dotted/dashed lines come out solid

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Follow-up Comment #1:

Hi Doug,

Here's a blast from the past.

[comment #0 original submission:]
> It appears that the number of dots and dashes in an interrupted
> line is determined without regard to scaling. Thus
> .PS 1i
> line from 0 to 100 dotted
> .PE
> produces in grops a heavy solid line, the result of 
> cramming hundreds of standard-size dots into an inch.
> 
> http://lists.gnu.org/archive/html/bug-groff/2015-03/msg00000.html

I'm having a problem because apparently the syntax of your reproducer is
defective in some way, and I don't understand the grammar of pic well enough
to remedy it in a way that I am sure will reproduce the problem you're
seeing.

Can you (or someone reading this with more skill than I in pic--few people
have less) supply a reproducer?


$ groff -p -ms
.LP
.PS 1i
line from 0 to 100 dotted
.PE
pic:<standard input>:3: syntax error before 'to'
pic:<standard input>:3: giving up on this picture


If I bust it down to just 'line dotted', I get a dotted line that doesn't
reproduce the problem; I assume the unitless numbers have something to do with
the density problem, or did in groff 1.22.3, the current release when this bug
was filed in 2015--but "git log src/preproc/pic/*.{h,cpp}" tells me there have
been no changes to pic features since then.

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