Name

xs:anyURI

Synopsis

The xs:anyURI type indicates a Uniform Resource Identifier. This includes not only Uniform Resource Locators (URLs), but also Uniform Resource Names (URNs). Both relative and absolute URLs are allowed. Legal xs:anyURI values include the following:

More specifically, elements of this type must be composed exclusively of the ASCII letters A-Z and a-z and digits 0-9, as well as the ASCII punctuation marks -, _, ., !, ~, *, `, (, and ). In addition, the ASCII punctuation marks ;, /, ?, :, @, &, =, +, $, %, [, ], and , may be used for their intended purposes in URLs; e.g., the forward slash can be used as the path separator but not as part of a filename. All other characters must be escaped by encoding each byte of their UTF-8 representation as a percent sign followed by the hexadecimal value of the character. Although there are other restrictions on what does and does not make a legal URI, in practice, the only conditions that schema processors check are the limitations on the characters that may appear.

Constraining facets that apply to xs:anyURI are length, minLength, maxLength, pattern, enumeration, and whiteSpace.