differently...)
In particular ${01} is now $1 not $0 (for ${0any-digits})
${4294967297} is most probably now ""
(unless you have a very large number of params)
it is no longer an alias for $1 (4294967297 & 0xFFFFFFFF) == 1
$(( expr $(( more )) stuff )) is no longer the same as
$(( expr (( more )) stuff )) which was sometimes OK, as in:
$(( 3 + $(( 2 - 1 )) * 3 ))
but not always as in:
$(( 1$((1 + 1))1 ))
which should be 121, but was an arith syntax error as
1((1 + 1))1
is meaningless.
Probably some more. This also sprinkles a little const, splits a big
func that had 2 (kind of unrelated) purposes into two simpler ones,
and avoids some (semi-dubious) modifications (and restores) in the input
string to insert \0's when they were needed.
dd6b641408