Topic Path: Symbol Reference > Constants > GBase64CodeTable Constant
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GBase64CodeTable Constant
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Represents the valid characters that constitute the Base64 alphabet.

File

IdCoderMIME

Pascal
GBase64CodeTable: string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
Description

GBase64CodeTable is a String constant Represents the valid characters that constitute the Base64 alphabet. GBase64CodeTable is used as the value for the TIdEncoderMIME coding table. 

The following table identifies the characters in the Base64 alphabet: 

 

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

 

An additional character, the "=" character, has special significance in the Base64 encoding scheme; it is used as a padding character.

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