Re: [RFC PATCH 02/28] cli: Add LIL shell

Wolfgang Denk
2021-07-03T19:33:45Z

Dear Sean,

In message <8bbdb7a1-5085-a3b7-614f-12ae9aee8e8b@gmail.com> you wrote:
>
> > For a partial list, see
> >
> > [1] https://github.com/Forty-Bot/lil/commits/master
>
> Whoops, looks like I completely misread what you were asking here. I
> don't have an exhaustive list of differences, but here are some similar
> things expressed in both languages:
>
> sh tcl
>
> foo=bar set foo bar
> echo $foo echo $foo
>
> if [ 1 -gt 2 ]; then if {1 > 2} {
> echo a echo a
> else } {
> echo b echo b
> fi }
>
> foo() { proc foo {first second} {
> echo $1 $2 echo $first $second
> } }
>
> for file in $(ls *.c); do foreach file [glob *.c] {
> echo $file echo $file
> done }
>
> fact() {
> if [ $1 -eq 0 ]; then
> echo 1
> else
> echo $(($1 * $(fact $(($1 - 1)))))
> fi
> }
>
> proc fact {n} {
> if {$n} {
> expr {$n * [fact [expr {$n - 1}]]}
> } {
> return 1
> }
> }
>
> Hopefully this gives you a bit of a feel for the basic differences.

Well, I know TCL, and there has been a zillion of reasons to move
_from_ that language many, many years ago. Intoducing this as new
"shell" language in U-Boot does not look attractive to me.
Actually, it gives me the creeps.

Best regards,

Wolfgang Denk

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Drawing on my fine command of language, I said nothing.