Hi all
Here is a bug report for troffs pic preprocessor.
It crashes when the commands is in a square bracket and you loose
track of the labels
-----------> test file contents
pseudo@helios; cat test.p
.PS
define missing { [
O: box invis wid 2.5 ht 1;
circle diam 0.1 with .e at P1;
] }
missing with .c at 0,0
.PE
-------> crash report and acid
pseudo@helios; cat test.p | pic
.lf 1 -
pic: no such place as P1 near -:8
context is
circle diam 0.1 with .e at >>> P1; <<< with .c at 0,0
pic 44699: suicide: sys: trap: fault read addr=0x10 pc=0x89b9
pseudo@helios; acid 44699
/proc/44699/text:386 plan 9 executable
/sys/lib/acid/port
/sys/lib/acid/386
acid: src(0x89b9)
/sys/src/cmd/pic/circgen.c:49
44 case WITH:
45 with = ap->a_val.i;
46 break;
47 case AT:
48 ppos = ap->a_val.o;
>49 curx = ppos->o_x;
50 cury = ppos->o_y;
51 at++;
52 break;
53 case INVIS:
54 battr |= INVIS;
acid:
