[antlr-interest] unexpected token:

[Alexey Demakov]

> I'd like to simple, but nested list like
>  {{0 1 2}{3 4 5}{6 7 8}} into nested java list.
> 
> The main work is done something like this in the lexer
> OPENBRACE: ('{')
>      { 
> // add a new list to the stack to be filled by later
> // Integer, Real, Boolean and Null calls
> List currentList = new ArrayList();
> stack.push( currentList );
> } ;
> CLOSEBRACE: ('}')
>      {
>        // add the contents of the current list to the previous one
>        // in case stack.size() > 1
>        if ( stack.size() > 1 ) {
> Object currentList = stack.pop();
> List previousList = (List) stack.peek();
> previousList.add( currentList );
>        }
>      } ;
> 
> and works pretty well. The parser looks like this:
> 
> simpleList : 
> OPENBRACE ( INTEGER | REAL | BOOLEAN | NULL | SPACE )+ CLOSEBRACE
>         {
>   //InlineList.parserLog.info("found simpleList " );
>   } ; 
> nestedList :
>   OPENBRACE ( simpleList | SPACE )+ CLOSEBRACE
>         {
>   InlineList.parserLog.info("found nestedList " );
>   } ; 
> 
> inlineList :
>   ( nestedList | simpleList )+ 
>          {
>    //InlineList.parserLog.debug("found inlineList " );
> } ; 
> 
> Everything works as expected, but I get an additional warning
> line 1:2: unexpected token: 0 
> parsing the strings, in this case {0 1 2 3 null}.
> 
> How could I get rid off this warning ?
> 
> Thanks, Carsten

May be the problem is in definition of INTEGER or REAL tokens?

Regards,
Alexey
-----
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