Character Classes

strglob wiki

Character Classes

The character classes feature of strglob implements an ordered set of bytes. Specifying a character class is done by surrounding string with colons and square brackets. Refer to the sample below for a demonstration of the [:digit:] character class which encapsulates the characters 0 through 9. A list of all available character classes follows:

[:alnum:]

1
2
3
4
5
6
7
8
9
0
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

[:alpha:]

a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

• [:ascii:]
• [:blank:]
• [:cntrl:]
• [:digit:]
• [:graph:]
• [:punct:]
• [:lower:]
• [:upper:]
• [:print:]
• [:space:]
• [:symbol:]
• [:xdigit:]
• [:word:]

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Example Input

[:digit:]

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Example Output

0
1
2
3
4
5
6
7
8
9

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