[m-rev.] for post-commit review: speed up the parser

[Zoltan Somogyi]

On Sat, 17 Oct 2015 14:25:26 +1100, Peter Wang <novalazy at gmail.com> wrote:
> The language being parsed may not have "-" as an operator.

You are right; thanks for the catch. I just committed a fix.

Zoltan.