Part of the input ignored in creating parse tree (in IntelliJ plugin)

[aivarannamaa]

Here is a grammar (http://pastebin.com/Higjrcrb) where I accidentally misdefined variable names (rule Nimi), so that it doesn't allow single character names.

To my surprise when I tested rule "avaldis" in ANTRL4 IntelliJ plugin (plugin version 1.0.2, IntelliJ version 13.1.1) with input 1+a+2+2, it gave me nice and wrong parse tree which was simply missing the a:

[aivarannamaa]

When I add a space after a, so that input becomes 1+a +2+2, it shows me the error in parse tree. The result is same whether I define separate skippable whitespace rule or not.

[parrt]

interesting. it should skip the a and space as bad tokens not to appear in the tree. I guess there is no error printed for you to see. This is a plugin issue not antlr :) I will add issue there.