[SVN] Re: [PATCH] Ruby Grammar: Distinguish augmented assignment operator from indented here-doc

[Martin Kühl]

On Wed, Jan 21, 2009 at 18:43, James Gray <james at grayproductions.net> wrote:
> On Jan 21, 2009, at 10:49 AM, Martin Kühl wrote:
>
>> the Ruby grammar states that the `<<` operator and `<<-`-style
>> here-docs could always be distinguished. To augment (ha!) its
>> behaviour in this respect, I added a negative lookahead after the
>> pattern matching the `<<` operator so it could never match a `<<-`
>> here-doc.
>
> I don't think this patch is OK.
>
> <<- isn't always a heredoc.  For example:
>
>   >> a = [ ]
>   => []
>   >> a<<-1
>   => [-1]

Ah, you're right, I missed that.

Martin