What is uri scheme?

URI Scheme

In the field of computer networking, a URI scheme is the top level of the uniform resource identifier (URI) naming structure. All URIs and absolute URI references are formed with a scheme name, followed by a colon character (":"), and the remainder of the URI called (in the outdated RFCs 1738 and 2396, but not the current STD 66/RFC 3986) the scheme-specific part. The syntax and semantics of the scheme-specific part are left largely to the specifications governing individual schemes, subject to certain constraints such as reserved characters and how to "escape" them.

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Some articles on uri scheme:

Unofficial But Common URI Schemes
... Scheme Purpose Defined by General format Notes coap Accessing Constrained Application Protocol (CoAP) resources ...
Percent-encoding in A URI - Percent-encoding Reserved Characters
... a "reserved character") has special meaning (a "reserved purpose") in a certain context, and a URI scheme says that it is necessary to use that character for some other purpose, then the character must ... which is used as an escape character, are then used in the URI in place of the reserved character ... The reserved character "/", for example, if used in the "path" component of a URI, has the special meaning of being a delimiter between path segments ...
Yahoo! Messenger - Features - URI Scheme
... Yahoo! Messenger's installation process automatically installs an extra URI scheme ("protocol") handler into some web browsers, so that URIs beginning "ymsgr ... This is similar in function to the mailto URI scheme, which creates a new e-mail message using the system's default mail program ...
File URI Scheme
... The file URI scheme is a URI scheme specified in RFC 1630 and RFC 1738, typically used to retrieve files from within one's own computer ...

Famous quotes containing the word scheme:

    The real security of Christianity is to be found in its benevolent morality, in its exquisite adaptation to the human heart, in the facility with which its scheme accommodates itself to the capacity of every human intellect, in the consolation which it bears to the house of mourning, in the light with which it brightens the great mystery of the grave.
    Thomas Babington Macaulay (1800–1859)