${THIS_SH} ./comsub-posix1.sub
+${THIS_SH} ./comsub-posix2.sub
+
+${THIS_SH} ./comsub-posix3.sub
+
# produced a parse error through bash-4.0-beta2
: $(echo foo)"
"
+# produced a parse error through bash-4.1
+unset x
+x=$(
+echo yes
+# a comment with " ' \
+)
+echo $x
+unset x
# fixed after bash-4.0 released
: $(case a in a) echo ;; # comment