On 2012/07/31 16:56:51, t.daniels_treda.co.uk wrote:
<mailto:[email protected]> wrote Tuesday, July 31, 2012 11:52 AM
>>
http://codereview.appspot.com/6445056/diff/1/lily/lexer.ll#newcode390
>> lily/lexer.ll:390: <chords,notes,figures>{RESTNAME}/[-_] |
>> Why is this trailing context added? I don't see
>> what this would match that wouldn't be matched
>> by the following line.
>
> Flex picks the longest matching pattern. Apparently that includes
> trailing contexts. Without this pattern, r-. does not trigger the
> {RESTNAME} rule but rather the {WORD}/[-_] rule coming later. And
for
> the {WORD}/[-_] rule, the trailing context is needed to keep flex
from
> requiring backup states.
Thanks. Understood. Probably worth a comment in the
code as this is not immediately obvious.
Oops. Forgot to include this in the latest iteration. Will do, but
without triggering a separate test cycle.
http://codereview.appspot.com/6445056/
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