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

[dak]

Without having looked all that much at the code:

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.

https://codereview.appspot.com/549920043/