> [...] and groff's devascii:
I was (partly) wrong about the devascii behavior.
In the example I had shown, some newer traps actually *replace*
older traps due to the limited vertical resolution (because the
position rounded to the nearest vertical resolution unit is the
same as that of a simi
> However, the nroff stderr output is unaccountably different:
> groff's implementation triggers traps 2, 4, 5, and 6,
> while Heirloom's triggers 1, 3, 4, and 6.
I just tried this with (a ported version of) Plan 9 troff, and
get the following:
vertical resolution is 720/in / 1
trap 1 sprung
On 10/24/18, Peter Schaffter wrote:
> Where is the generic end-of-page trap in relation to the last output
> line of the page?
In one instance, the end-of-page trap sits at position 527981u.* On
the last line, .tm reports the value of \n(nl to be 523346u.** So my
code places the new trap at 523
Dave --
On Wed, Oct 24, 2018, Dave Kemper wrote:
> To elaborate on point (3): I encountered this while trying to place a
> trap that gets triggered at the end of the current output line (that
> is, the next time the output's vertical position is advanced). I did
> this by placing the trap a singl
> Since this behavior is (1) undocumented, (2) inconsistent across
> historic roffs, and (3) arguably undesirable, is it accurate to call
> it a bug and open a bug report on it?
It's certainly worth to open a report so that the behaviour can either
be fixed or accurately documented (whatever is
On 6/16/18, Ralph Corderoy wrote:
>> Werner wrote:
>> > In other words, while your first trap is active, it moves down one
>> > line, which passes some traps without triggering them.
>>
>> That bit of information is missing from the manual
>
> And from CSTR 54. Werner, are you sure about that? I
Hi Ralph,
On 6/16/18, Ralph Corderoy wrote:
> It's odd that for `ps' it's the first trap to a rounded position that
> springs, but for `ascii' it's the second.
True, but it's odd that there should be rounding in the ps device at
all, given that the device has a much finer granularity than 1/10 o
