VB.Net - Backreference Constructs


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Backreference constructs allow a previously matched sub-expression to be identified subsequently in the same regular expression.

The following table lists these constructs:

Backreference construct Description Pattern Matches
\ number Backreference. Matches the value of a numbered subexpression. (\w)\1"ee" in "seek"
\k< name > Named backreference. Matches the value of a named expression. (?< char>\w)\k< char>"ee" in "seek"

vb.net_regular_expressions.htm

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