Repetition is specified by quantifiers, which can follow any of the following items: a single character, possibly escaped the. metacharacter a character class a back reference (see next section) a parenthesized subpattern (unless it is an assertion - see below) The general repetition quantifier specifies a minimum and maximum number of permitted matches, by giving the two numbers in curly brackets (braces), separated by a comma.
Ces nombres doivent être plus petits que 65536, et le premier nombre doit être égal ou inférieur au second.