Re: Use a hash table for the lexer keywords (issue 549920043 by address@hidden)

[Han-Wen Nienhuys]

On Mon, Apr 27, 2020 at 10:59 AM <address@hidden> wrote:
> When the parser sees some \blabla it will generally first have to check
> for a keyword and (when it has no match) afterwards for a variable with
> that name, and a lot of those are actually music functions these days
> that used to be keyword.
>
> Wouldn't it make sense to just convert \xxx into a symbol early on in
> the lexer?  That is essentially a hash code, and we have lookups for
> those.  It seems wasteful to use two completely different ways of
> hashing a string in succession when we can just turn this into a symbol
> early on and work with that instead.

If you can make Bison work off SCM symbol values, be my guest.

-- 
Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen