Hi,
I wanted to use a lookahead for variables in my language. As a variable
is always followed by the keyword 'in', I defined the variable token as
follow:
in = 'in';
variable = var / 'in';
where "in" is the token for the in-keyword, and "var" is defined in the
Helpers section as:
var = letter (letter | digit )*;
With both versions, i.e. SableCC2 and SableCC3, I get the following
error:
java.lang.RuntimeException: [146,17] Look ahead not yet supported.
What does this error mean? In other words, what am I possibly doing
wrong?
Thanks in advance,
Pieter.