CondParser_Eval: ${:Uvalue} != value
lhs = "value", rhs = "value", op = !=
CondParser_Eval: ${:U} != "
lhs = "", rhs = "", op = !=
CondParser_Eval: ${:U#hash} != "#hash"
lhs = "#hash", rhs = "#hash", op = !=
CondParser_Eval: ${:U\\} != "\\
lhs = "\", rhs = "\", op = !=
CondParser_Eval: ${:U#hash} != #hash
lhs = "#hash", rhs = "#hash", op = !=
CondParser_Eval: 0 # This is treated as a comment, but why?
CondParser_Eval: ${0 # comment :?yes:no} != no
CondParser_Eval: 0 # comment 
lhs = "no", rhs = "no", op = !=
CondParser_Eval: ${1 # comment :?yes:no} != yes
CondParser_Eval: 1 # comment 
lhs = "yes", rhs = "yes", op = !=
CondParser_Eval: ${UNDEF:Uundefined}!=undefined
lhs = "undefined", rhs = "undefined", op = !=
CondParser_Eval: ${UNDEF:U12345}>12345
lhs = 12345.000000, rhs = 12345.000000, op = >1
CondParser_Eval: ${UNDEF:U12345}<12345
lhs = 12345.000000, rhs = 12345.000000, op = <1
CondParser_Eval: (${UNDEF:U0})||0
CondParser_Eval: ${:Uvar}&&name != "var&&name"
lhs = "var&&name", rhs = "var&&name", op = !=
CondParser_Eval: ${:Uvar}||name != "var||name"
lhs = "var||name", rhs = "var||name", op = !=
exit status 0