软件包：liburl-encode-perl（0.03-3）

module to encode/decode to/from application/x-www-form-urlencoded encoding

URL::Encode provides functions to encode and decode strings into and from the application/x-www-form-urlencoded encoding.

The application/x-www-form-urlencoded format encodes an ordered data set of pairs consisting of a name and a value, with pairs separated by ampersand or semicolon, and names and values separated by the equal sign. Space characters are replaced with a plus sign, and any character not in the unreserved character set is encoded using the percent-encoding scheme also used for resource identifiers. A percent-encoded octet is encoded as a character triplet, consisting of the percent character "%" followed by the two hexadecimal digits representing that octet's numeric value.

The unreserved character set includes the uppercase and lowercase letters, decimal digits, hyphen, period, underscore, and tilde.

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