Re: Lexical environments

[pan shizhu <pan.shizhu@...>]

> Adding a new keyword once in a blue moon is not a great disaster, if
> it gives us such excellent convenience.[1]

Please note that adding a new keyword will often result in breakage of
many existing programs.

when I've got a function like:

funtion do_something(from, to)
end

I'll got an error if "from" is a keyword.


Is there any serious programming language (except SQL) using "from" as
a keyword? If not, then it is highly likely that this word will be
freely and widely used as variable name and argument names.