Url Encoding - Extron electronics IPL T S Series User Manual

URL Encoding

URL encoding is the method of using ASCII hexadecimal characters to display specific
characters in a URL. URL encoding is used for several reasons. On some operating
systems, certain characters are unsafe or not available, and others are reserved by the
HTML or URL specification. URL encoding is used to ensure compatibility and functionality
with most Internet browsers. As a general rule, use the URL hexadecimal encoding method
shown on the following page when these characters appear in your URLs.
The following types of characters do not require encoding in a URL.
Alphanumerics
Special characters
Reserved characters
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 below) in your URLs.
The following table lists reserved characters.
Characters
$ Dollar
& Ampersand
+ Plus
, Comma
/ Forward slash / virgule
: Colon
: Semi-colon
+ Equal
? Question mark
@ "At" symbol
0-9 a-z A-Z
$ _ _ . + ! * ( ) ,
; / ? : @ = &
When used for their reserved purposes, these characters do
not require encoding within a URL.
Hex Dec
24 36
26 38
2B 43
2C 44
2F 47
3A 58
3B 59
3D 61
3F 63
4O 64
IPL T S Series • Communication and Control 47