|
Metacharacter What It Matches
\12 Matches that octal value, up to \377
\x811 Matches that hex value
\cX Matches that control character; e.g., \cC is <Ctrl>-C and \cV is <Ctrl>-V
\e Matches the ASCII ESC character, not backslash
\E Marks the end of changing case with \U, \L, or \Q
\l Lowercase the next character only
\L Lowercase characters until the end of the string or until \E
\N Matches that named character; e.g., \N{greek:Beta}
\p{PROPERTY} Matches any character with the named property; e.g., \p{IsAlpha}/
\P{PROPERTY} Matches any character without the named property
\Q Quote metacharacters until \E
\u Titlecase next character only
\U Uppercase until \E
\x{NUMBER} Matches Unicode NUMBER given in hexadecimal
\X Matches Unicode "combining character sequence" string
\[ Matches that metacharacter
\\ Matches a backslash
|