help with BNF

[laki234]

hi

here is BNF grammer.Can anybody help me to understand it.

-> { "&" }

-> "!" "(" ")"

-> { "|" }
-> ("=" | "<" | ">") -> {"+" | "-" }
-> { "*" | "/" }
-> | "(" ")"

here.inside double quote marks are terminals symbols,but | alone is a meta-symbol in the grammer.

[ddanbe]

The last line -> | "(" ")"
says that a is a or a enclosed in brackets.
The line -> { "*" | "/" } means that a is a followed by zero or more things which are preceded by a * or / sign.
With this you should be able to find the rest yourself, otherwise : google BNF grammar.

[gbertoli3]

Is this even C#?

[gbertoli3]

Then why is it in the C# Forum?

[ddanbe]

Is this even C#?

No it isn't...

[ddanbe]

Cave ab homine unius libri.
There is to my knowledge no forum on BNF so he might as well have posted it here.

[gbertoli3]

Yeah I guess!

[ddanbe]

Nice snippet. Why use unsafe code?

[gbertoli3]

Thanks!

I saw some snippets using unsafe code for Image Manipulation. When I compared the two Images the method using the unsafe code looked better.

[ddanbe]

Can be. Why not use assembler then, it will look even better.

[gbertoli3]

What do you mean by assembler?

[ddanbe]

You must be joking if you never heard the word "assembler"

[gbertoli3]

I just wanted to know which one(s)! Sorry for the poor wording. I've never made / used an assembler, but I know what one is.