C＃-正規表現のアンカー

アンカーを使用すると、文字列内の現在の位置に応じて、一致を成功または失敗させることができます。次の表は、アンカーを示しています-

Assertion	Description	Pattern	Matches
^	The match must start at the beginning of the string or line.	^\d{3}	"567" in "567-777-"
$	The match must occur at the end of the string or before* \n* at the end of the line or string.	-\d{4}$	"-2012" in "8-12-2012"
\A	The match must occur at the start of the string.	\A\w{3}	"Code" in "Code-007-"
\Z	The match must occur at the end of the string or before \n at the end of the string.	-\d{3}\Z	"-007" in "Bond-901-007"
\z	The match must occur at the end of the string.	-\d{3}\z	"-333" in "-901-333"
\G	The match must occur at the point where the previous match ended.	\\G$\d$	"(1)", "(3)", "(5)" in "(1)(3)(5)[7](9)"
\b	The match must occur on a boundary between a* \w (alphanumeric) and a \W*(nonalphanumeric) character.	\w	"R", "o", "m" and "1" in "Room#1"
\B	The match must not occur on a* \b* boundary.	\Bend\w*\b	"ends", "ender" in "end sends endure lender"

Csharp-anchors