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Reserved characters
Reserved characters should not be encoded when they appear in their conventional meaning
in a URL. For example, do not encode the slash (/) when using it as part of the URL syntax.
Only encode unsafe characters (defined in the table in the next section) in your URLs.
The following table lists reserved characters.
Characters
Hex Dec
$
Dollar 24 36
&
Ampersand 26 38
+
Plus 2B 43
,
Comma 2C 44
/
Forward slash (virgule) 2F 47
:
Colon 3A 58
;
Semi-colon 3B 59
=
Equal 3D 61
?
Question mark 3F 63
@
“At” symbol 4O 64
Figure 30. Reserved Characters
Unsafe characters
URLs use some characters for “special use” in defining their syntax and these characters
should be encoded. For various reasons, these characters may possibly be misunderstood
within a URL. The following table lists unsafe characters.
Characters
Hex Dec
Space 20 32
“ “ Quotation marks 22 34
<
“Less than” symbol 3C 60
>
“More than” symbol 3E 62
#
Pound 23 35
%
Percent 25 37
{
Left brace 7B 123
}
Right brace 7D 125
|
Vertical bar (pipe) 7C 124
\
Backslash 5C 92
^
Caret 5E 94
~
Tilde 7E 126
[
Left square bracket 5B 91
]
Right square bracket 5D 93
`
Grave accent 60 96
Figure 31. Unsafe Characters
IPL T PCS4 • HTML Configuration and Control 38