Name
|
Description
|
alnum
|
Any alpha-numeric character.
|
alpha
|
Any alphabetic character.
|
blank
|
Any whitespace character that is not a line separator.
|
cntrl
|
Any control character.
|
d
|
Any decimal digit
|
digit
|
Any decimal digit.
|
graph
|
Any graphical character.
|
l
|
Any lower case character.
|
lower
|
Any lower case character.
|
print
|
Any printable character.
|
punct
|
Any punctuation character.
|
s
|
Any whitespace character.
|
space
|
Any whitespace character.
|
unicode
|
Any extended character whose code point is above 255 in value.
|
u
|
Any upper case character.
|
upper
|
Any upper case character.
|
w
|
Any word character (alphanumeric characters plus the underscore).
|
word
|
Any word character (alphanumeric characters plus the underscore).
|
xdigit
|
Any hexadecimal digit character.
|
|