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Web Page-Based Setup and Control, cont'd
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URL encoding
URL (Universal Resource Locator) encoding is the method of using ASCII
hexadecimal characters to display specific characters in a URL. It 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 insure compatibility and functionality with most Internet
browsers. As a general rule, use the hexadecimal encoding method shown below
when these characters appear in your URLs.
The following types of characters do not require encoding in a URL:
alphanumerics
special characters
reserved characters
Characters that do not require encoding
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.
www.camboard.de
4-24
IPL T PCS4 • Web Page-Based Setup and Control
CAMBOARD Electronics
0-9 a-z A-Z
$ _ _ . + ! * ( ) ,
; / ? : @ = &
When used for their reserved purposes, these
characters do not require encoding within a URL.
Tel. 07131 911201
Fax 07131 911203
ce-info@camboard.de
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