[antlr-interest] JavaScript grammar

[Johannes Luber]

Patrick Hulsmeijer schrieb:
> Chris,
> 
> For the semicolon insertion issue I’ve taken the following approach. 
>  The line terminators are left on the hidden channel. In the parser the 
> semicolon (e.g. in statements) is defined as a rule. In this rule I scan 
> the token stream for line terminators and promote the first encountered 
> to the default channel. Line terminator are also an alternative in this 
> rule. Something like this:
> 
> semic:
> @init
> {
>                 int marker = input.mark();
>                 promoteEOL();
> }
>                 : SEMIC
>                 | EOL
>                 | RBRACE { input.rewind(marker); }
>                 | EOF
>                 ;
>  

Can you elaborate more on the function promoteEOL()?

Johannes