D Programming Language
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# std.uri

Encode and decode Uniform Resource Identifiers (URIs). URIs are used in internet transfer protocols. Valid URI characters consist of letters, digits, and the characters ;/?:@&=+$,-.!~*'() Reserved URI characters are ;/?:@&=+$, Escape sequences consist of % followed by two hex digits.
See Also:
RFC 3986
Wikipedia
License:
Boost License 1.0.
Authors:
Walter Bright

Source: std/uri.d

class URIException: object.Exception;
  This Exception is thrown if something goes wrong when encoding or decoding a URI.
string decode(Char)(in Char[] encodedURI) if (isSomeChar!Char);
  Decodes the URI string encodedURI into a UTF-8 string and returns it. Escape sequences that resolve to reserved URI characters are not replaced. Escape sequences that resolve to the '#' character are not replaced.
string decodeComponent(Char)(in Char[] encodedURIComponent) if (isSomeChar!Char);
  Decodes the URI string encodedURI into a UTF-8 string and returns it. All escape sequences are decoded.
string encode(Char)(in Char[] uri) if (isSomeChar!Char);
  Encodes the UTF-8 string uri into a URI and returns that URI. Any character not a valid URI character is escaped. The '#' character is not escaped.
string encodeComponent(Char)(in Char[] uriComponent) if (isSomeChar!Char);
  Encodes the UTF-8 string uriComponent into a URI and returns that URI. Any character not a letter, digit, or one of -.!~*'() is escaped.
size_t uriLength(Char)(in Char[] s) if (isSomeChar!Char);
  Does string s[] start with a URL?
  Returns:
  -1 it does not len it does, and s[0..len] is the slice of s[] that is that URL
  Examples:

      string s1 = "http://www.digitalmars.com/~fred/fredsRX.html#foo end!";
      assert (uriLength(s1) == 49);
      string s2 = "no uri here";
      assert (uriLength(s2) == -1);

size_t emailLength(Char)(in Char[] s) if (isSomeChar!Char);
  Does string s[] start with an email address?
  Returns:
  -1 it does not len it does, and s[0..i] is the slice of s[] that is that email address

  References: RFC2822

  Examples:

      string s1 = "my.e-mail@www.example-domain.com with garbage added";
      assert (emailLength(s1) == 32);
      string s2 = "no email address here";
      assert (emailLength(s2) == -1);

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