I had a look at https://bugs.ruby-lang.org/attachments/4038/train.patch.
Catching the 'train' emoji should be handled in the lexer, not in the 
parser.

But first you have to make sure that the source file is actually UTF-8.

Also, when I looked at you first mail, I saw something that looked close 
to a ¦Ë. Is that why this symbol was choosen?

Please note that there is nothing in the Unicode standard that says that 
the symbol has to look like that, it can be a train looked at from the 
front (see e.g. http://www.iemoji.com/view/emoji/847/places/train), or 
any other representation of a train.

Also, as currently emoji characters are not that well supported, there 
is quite some chance that the character gets rendered as a box or a 
question mark, or not at all.

Regards,   Martin.

On 2013/11/11 7:05, charliesome (Charlie Somerville) wrote:
>
> Issue #9099 has been updated by charliesome (Charlie Somerville).
>
> File train.rb added
>
> Redmine truncated the sample code due to the use of emoji, so I have attached a sample file instead.
> ----------------------------------------
> Feature #9099: Train emoji lambda operator
> https://bugs.ruby-lang.org/issues/9099#change-42850
>
> Author: charliesome (Charlie Somerville)
> Status: Open
> Priority: Normal
> Assignee:
> Category:
> Target version:
>
>
> Matz mentioned during the 'Questions for Matz' section at RubyConf 2013that he would like to the train emoji as an alternative to the stabby lambda operator.
>
> I have implemented this and attached the patch.
>
> Example code:
>
> fn =
>
>