fatal pgawk error: unexpected type Node_regex in prec_level

[Hermann Peifer]

Arnold,

I noticed a weird behaviour of pgawk 3.1.7 under cygwin. Is this a bug, 
feature or some Windows thing?

Regards, Hermann

# Everything works fine with gawk
$ gawk 'NR==FNR{a[$0];next}{ for (i in a) if (/The /) print }' list1 list2
The one
The one
The one
The three
The three
The three

# Here I change the condition to "!/The /"
$ gawk 'NR==FNR{a[$0];next}{ for (i in a) if (!/The /) print }' list1 list2
two
two
two

# Everything works fine with pgawk here...
$ pgawk 'NR==FNR{a[$0];next}{ for (i in a) if (/The /) print }' list1 list2
The one
The one
The one
The three
The three
The three

# ..but changing the condition to "!/The /" seems to trigger the error:
$ pgawk 'NR==FNR{a[$0];next}{ for (i in a) if (!/The /) print }' list1 list2
two
two
two
pgawk: (FILENAME=list2 FNR=3) fatal: unexpected type Node_regex in 
prec_level

$ cat list1
one
two
three

$ cat list2
The one
two
The three