[antlr-interest] Lists. Lexer or Parser?

[Gavin Lambert]

At 01:58 13/09/2008, Dave Pawson wrote:
 >Obvious next question, how to do it in the Parser please?

Just output whatever you want.  Like so:

list : { Console.writeLine("<list>"); } item* { 
Console.writeLine("</list>"); } ;
item : TEXT { Console.writeLine("<item>", $TEXT.text, "</item>"); 
} ;

 >I'm not that far in the Antlr book - seems like I do need a tree
 >with a non-existant node to hang the list item children from.

Maybe you should read more of the book :)

And you can do it like that if you want to (eg. if you want to 
generate an AST you can manipulate or generate multiple kinds of 
output from), but if your needs are simple then you might as well 
just do the output directly in the parser.