Pipe "|" action does not work for <<EOF>> rules

[collinsmith]

According to the JFlex manual, the grammar for a Rule is

Rule         ::= [StateList] ['^'] RegExp [LookAhead] Action 
               | [StateList] '<<EOF>>' Action
               | StateGroup 
Action       ::= '{' JavaCode '}' | '|'

However, if the action for an <<EOF>> rule is a pipe, then the generator fails. Below is a snippet which should reproduce the behavior.

Error

Unexpected character
<<EOF>>               |
 ^
1 error, 0 warnings.

Reproduction

<<EOF>>               |
...                   |
...                   {  }

Workaround

...                   |
...                   |
<<EOF>>               {  }

[lsf37]

Thanks for spotting that and posting the workaround. Will have a look.