1. Re: Eu's good design (sequences in other languages)
Does anyone here have any knowledge of the programming
language GLEE? I know it has sequences.
Can't remember how I came across the sight a few years
ago. It struck me that "GLEE" sounded a bit like
"Euphoria" and I wondered if it had been created by
someone who had been exposed to Euphoria.
http://withglee.com/Frames/GFMain.htm
--- David Cuny <dcuny at LANSET.COM> wrote:
>
>
> Andy Serpa wrote:
>
> > I think Lua may have something like sequences as
> well...
>
> No, it's uses hash tables. It a lot of respects, it
> *looks* like a sequence.
> For example, you can write:
>
> s = { "cat", "dog", "pig" }
>
> and it's the same as writing:
>
> s = { [1]:"cat", [2]:"dog", [3]:"pig" }
>
> which is exactly the same as writing:
>
> s = {}
> s[1] = "cat"
> s[2] = "dog"
> s[3] = "pig"
>
> Table keys are non-positional, which is entirely
> different from Euphoria. For
> example:
>
> - When you iterate through a Lua table, you have no
> guarantee that the
> elements will come back in any paticular order
>
> - You can't return slices from a Lua table
>
> - You can't insert an element between two elements
> in a Lua table.
>
> Despite the differences, Lua shares a lot in common
> with Euphoria:
>
> - It's very structured
> - It's built around a single, highly flexible
> datatype (the hash table)
> - Details like garbage collection are hidden from
> the user
> - It aims to keep the core small and fast
>
> There are a striking differences, however:
>
> - Lua allows variables to be declared on the fly
> - Major versions are often incompatible with prior
> versions
> - Lua is primarily intended as an embedded scripting
> language
> - Lua generates bytecodes instead of shrouded code
>
> I think Lua is the language Euphoria is most akin
> to, and It's interesting to
> compare the two.
>
> -- David Cuny
>
>
>
>
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