How to describe a quoted string in EBNF

Question

How do I describe a quoted string (like in C, Java, etc) in EBNF notation?

I was thinking of this (see below), but the AnyCharacter part will also match the double quotes (").

QuotedString = '"' AnyCharacter* '"' ;

In other words, how do I match all characters except the double quote character ("), but still allow escapes (/")?

Answer 1

You could do something like

string = " printable-chars | nested-quotes "

where

printable chars = letter | digit | ~ @ # % _ $ & ' - + / 

where

letter = A..Z | a..z | extended ascii

and

digit = 0..9

I think you've got the general idea