ASCII character code list (0-127)

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I’d like to describe ASCII character code. Please refer to this article when you configure string pattern of regular expression. The code number 8, 9, 10 and 13 are control character, which are used as back space, tab, line feed and carriage return, respectively.

Character class of alphanumeric character is expressed as [a-zA-Z0-9] in regular expression, single-byte symbol class is expressed as [!-/:-@[-`{-~]. In character class, ] and \ character need to escape.

Code Character Meta character
0  
1  
2  
3  
4  
5  
6  
7  
8 *1
9 *2
10 *3
11  
12  
13 *4
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30
31  
32 [space] 
33
34 ” 
35
36
37
38
39 ‘ 
40
41
42
43
44
45 – 
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127  

Reference:
ASCII (Wikipedia)

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