Brocade Communications Systems IP250 user manual Regular Expressions Back references

Regular Expressions F

TABLE 12	Back references
Construct	Matches
\n	Whatever the nth capturing group matched
Quotation
\	Nothing, but quotes the following character
\Q	Nothing, but quotes all characters until \E
\E	Nothing, but ends quoting started by \Q

TABLE 13	Special constructs (non-capturing)
Construct		Matches
(?:X)		X, as a non-capturing group
(?idmsux-idmsux)		Nothing, but turns match flags on–off
(?idmsux-idmsux:X)		X, as a non-capturing group with the given flags on–off
(?=X)		X, through zero-width positive lookahead
(?!X)		X, through zero-width negative lookahead
(?<=X)		X, through zero-width positive lookbehind
(?<!X)		X, through zero-width negative lookbehind
(?>X)		X, as an independent, non-capturing group

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