Reverse - Special characters and character classes Flashcards
Matches any single character except the newline character.
.
The bracket expression.
[…]
The negated bracket expression.
[^…]
Word character Equivalent to [A-Za-z0-9_]
\w
Non-word characterEquivalent to [^A-Za-Non-word characterEquivalent to [^A-Za-z0-9_]
\W
Digit characterEquivalent to [0-9]
\d
Non-digit characterEquivalent to [^0-9]
\D
Whitespace characterEquivalent to [\f\n\r\t\v\u00A0\u2028\u2029] (\u00A0 means “no-break space”, \u2028 means “line separator”, \u2029 means “paragraph separator”)
\s
Non-whitespace characterEquivalent to [^\f\n\r\t\v\u00A0\u2028\u2029]
\S
Word Boundary
Backspace (\x08)
\b
Form-feed (\x0C)
\f
Linefeed or newline (\x0A)
\n
Carriage return (\x0D)
\r
Tab (\x09)
\t
Vertical tab (\x0B)
\v
Null character (\x00)
\0
Character with hexadecimal code hh.
\xhh
Character with hexadecimal code hhhh.
\uhhhh
