PhilippeSigaud/Pegged — pull request #70 by chadjoan (2012-10-21 06:55:07+00:00)
Title: Leading alt

I realized that it would be unambiguous to allow a '/' at the beginning of alternation expressions. This would allow for long alternations to have their own indentation level:

```
MultiLineAlternation <-
/ 'a'
/ 'b'
/ 'c'
```

It's unambiguous because no one would ever want an alternation expression that can match 0 characters as its first choice: it would always succeed and consume nothing. Adding this to the Pegged grammar seemed very easy, if not trivial.