[antlr-interest] Simple expression grammar

[Maciej Bakalarz]

>> OK I have written my grammar for boolean expressions mentioned earlier 
>> (like ( (a>=3 || b<=5)&& c>=4 )  ).
>>
>> But my grammar accept also expressions like "abc def ght" and many other 
>> strange constructions
> 
> I think it is only accepting that because you have used:
> 
> logical_or_expression+
> 
> Remove the + and it will only accept a single logical expression. this 
> code accepts  abc def ght as 3 separate logical_or_expressions.

I have tried it but ... when I remove '+' it will not parse correctly 
expression like "x>=4 || b<=5 && d<=5" . It will parse only 'x'

Thanks
Maciek Bakalarz