[antlr-interest] Newick tree grammar help: file has no rules

[Norman Dunbar]

On 03/11/11 16:46, Norman Dunbar wrote:
> Change "tree" to "xtree" and all appears well. I'm assuming that "tree"
> is some sort of reserved word somewhere in the system?

Although, having done this, Altrworks does complain about the tree and 
subtree rules:

[16:49:06] warning(200): NewickGrammar.g:12:28:
Decision can match input such as "EOF" using multiple alternatives: 1, 2

As a result, alternative(s) 2 were disabled for that input
[16:49:06] error(201): NewickGrammar.g:12:28: The following alternatives 
can never be matched: 2

Check out the syntax diagram for these two rules.


Cheers,
Norm.

Disclaimer: I'm not a compiler writer, nor do I play one on TV.

-- 
Norman Dunbar
Dunbar IT Consultants Ltd

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