Re: Problem in grammar

[Joel E. Denny]

On Tue, 15 Feb 2011, Godeau Julien wrote:

> My_var = 3. + 1.
> 
> My_signal = 4. + My_other_signal
> 
> Mysignal = My_other_signal + 4.
> 
>  
> 
> Let's assume that My_var and My_signal are new identifiers, my problem
> is that in the second example the command "Mysignal = 4." is recognized
> by Bison as an integer variable assignment (with parsing error because
> of "My_other_signal") while what should have been done is to recognize
> that "4. + My_other_signal" is a signal (and process it) and then do a
> signal assignment. In the third example, it works fine.

You must have sent us the wrong grammar.  IDENTIFIER can only appear 
before an '=', so the third example (where I assume My_other_signal is an 
IDENTIFIER) should be a syntax error as well.