OpenEuphoria

Re: case and foreach

• Posted by "Kat" <gertie at visionsix.com> Apr 01, 2005
• 680 views

On 31 Mar 2005, at 23:00, D. Newhall wrote:

> 
> 
> posted by: D. Newhall <derek_newhall at yahoo.com>
> 
> I too have yearned for the "case", "foreach", and "next" statements. However,
> one of Euphoria's goals is to keep the code simple and these suggestions kinda
> run against that trend. Regardless, I've found myself wishing I had a "next"
> statementmany times when I need to find all possible permutations of a certain
> string. Also, if you look at probably 90% of for loops, they seem to be used
> in
> instances where "foreach" would be much better.
> 
> "Case" I'm torn on. While yes "select" and "case" would be excellent things to
> add you don't really need them. Yes, they'd increase productivity and probably
> make it easier to debug but they aren't necessary, "if" and "then" work
> perfectly fine (even if it takes longer to type all the conditions in).
> 
> "Next" we can live without but most people seem to want "foreach" and
> "select/case".
> 
> Here's my suggestion for the syntax:
> 
> -- select/case
> select x do
>   case 5 then
>     -- code
>   end case
>   case 2 then
>     --code
>   end case
> end select
> 
> -- foreach
> foreach o in s by 1 do -- o is an object
>   -- code
> end foreach

This is even cleaner:

function case(object x)
goto x
:1 return("x=1")
:2 return("x=2")
:orangutan return("x needs a banana")
:roo return("as in kanga?")
:{"a","b","c"} return("That is very good, "&nick&"!")
return(type(x))
end

puts(1,case(x))

But alas, that requires a goto statement, and going to something, which 
almost every crawling baby can understand, also breaks RDS's message of 
"simple".

Kat