https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=46441

--- Comment #22 from Jilles Tjoelker <[email protected]> ---
Comment on attachment 264503
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=264503
PS1/PS2 parameter expansion patch v2

I like it. Please confirm the author name and email address to be written into
Git.

I have some nits but I can fix them myself.

Nit: existing code does not check `is_in_name` on the same character `is_name`
returned true for, but increments the pointer (`fmt` here) in between.

Nit: line 2124 till 2132 (`/* Positional parameters - check digits FIRST */`
and `} else if (namelen == 1 && is_special(*varname)) {`) are not indented
correctly.

Nit: `valbuf` on line 2134 is `static` but if `varname` above can live on the
stack then so can `valbuf`.

Some things like `$-` and `${10}` don't work but let's not add them to avoid
adding even more duplicated code. I expect the implemented parts to be almost
all of what people will actually use.

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