Hi Martin, It's telling you that when when it recursively enters ruleExpression after ruleUnOp, on encountering "[" at the end of the recursive ruleExpression it cannot decide if ruleSelector is part of the recursive invocation of ruleExpression or of the invoking ruleExpression. Because of the recursion involved the visualization is somewhat hard to parse..
Hope his makes sense. Peter From: "Martin Becker" <[email protected]> To: [email protected] Sent: Monday, March 21, 2011 2:13:50 PM Subject: [antlr-interest] How to Read ANTLR Ambiguous Path Visualization? Hi there, I'm new to grammars and ANTLR(Works) and having a problem now. I understand there is some disambiguity in my grammar, but due to lack of documentation of the 'Ambiguous Path Visualization' in ANTLRWorks, I don't understand what it is trying to tell me. Please have a look at this screenshot: http://picfront.de/d/87zv The error is "Decision can match input such as "'['" using multiple alternatives: 1, 2" Please note that the line between the state "ruleSelector" in the upper right corner and the rule "ruleSelector" on the left side is green and red, so this seems to be a path for both alternatives. First of all...does it mean, that the disambiguity starts at the upper right corner, before "ruleSelector"? And then...the red path is just confusing. I don't understand from where to where it goes... Could anyone explain that to me, please? Thanks, Martin List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
