[9fans] p9p troff/ps problem, comparison with heirloom

[rudolf.sykora@gmail.com (Rudolf Sykora)]

Hello,

In my new linux installation + p9p I found myself having problems with
using p9p troff.
To ilustrate, consider the input for troff

.\".do xflag 3
.\".lc_ctype en_US.utf8
em-dash:?
.br
brackets, big delta, sqrt:
.EQ
left ( { ?? - sqrt 2 } over 5? right )
.EN

which is then used with
9 eqn a | 9 troff | 9 tr2post | 9 psfonts > p9p.ps

The screenshot of the result is attached in p9p.png. You see no
em-dash, no big delta (tilde instead), the 1st half of the sqrt sign
missing and the second half wrongly positioned.

For comparison I supplied the same example, with uncommented fist two
lines, to Heirloom troff:
$HEIRLOOM/eqn a | $HEIRLOOM/troff | $HEIRLOOM/dpost > heirloom.ps
and the respective result is attached in heirloom.png.
In the heirloom case, the situation is better (em-dash, big delta, 1st
part of the sqrt is there), however, the second part of the sqrt is
still wrongly positioned.

If anyone can help me out of this mess, I'd be grateful!

Thank you
Ruda
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