When a character from the reserved set (a "reserved character") has special meaning (a "reserved purpose") in a certain context,Īnd a URI scheme says that it is necessary to use that character for some other purpose, then the character must be percent-encoded. Meaning have changed slightly with each revision of specifications that govern URIs and URI schemes. The sets of reserved and unreserved characters and the circumstances under which certain reserved characters have special Using percent-encoding, reserved characters are represented using special character sequences. Unreserved characters have no such meanings. For example, forward slash characters are used Reserved characters are those characters that sometimes have special meaning. The characters allowed in a URI are either reserved or unreserved. Media type, as is often used in the submission of HTML form data in HTTP requests. As such, it is also used in the preparation of data of the application/x-www-form-urlencoded Generally within the main Uniform Resource Identifier (URI) set, which includes both Uniform Resource Locator (URL) and Although it is known as URL encoding it is, in fact, used more Identifier (URI) under certain circumstances. Percent-encoding, also known as URL encoding, is a mechanism for encoding information in a Uniform Resource
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