The trouble with ambiguous grammars

Brendan Eich brendan at mozilla.com
Mon Oct 20 11:44:53 PDT 2008


On Oct 20, 2008, at 11:35 AM, Waldemar Horwat wrote:

> Brendan Eich wrote:
>> On Oct 17, 2008, at 4:16 PM, Waldemar Horwat wrote:
>>> The old ES4 grammar is machine-verified LR(1).  It's on:
>>>
>>> http://www.mozilla.org/js/language/old-es4/
>> One based on ES3 would be helpful for ES3.1 and Harmony. Someone  
>> needs to invest effort here. If not you, who? This is as good a  
>> time as any to call for capable potential volunteers to scope the  
>> work and, if they are willing, and step forward.
>
> I'll do it for both.  For Harmony it's not clear what's in and out  
> at this point, so I'm somewhat at a loss as to what to put in there.

Testing ideas from http://wiki.ecmascript.org/doku.php?id=strawman:strawman 
  pages and (other than let expressions, which are already found  
wanting) validating or invalidating them would be most helpful. Thanks,

/be


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