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\name{URLencode}
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\name{URLencode}
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\alias{URLencode}
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\alias{URLencode}
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\alias{URLdecode}
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\alias{URLdecode}
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\title{Encode or Decode a (partial) URL}
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\title{Encode or Decode a (partial) URL}
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\description{
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\description{
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  Functions to encode or decode characters in URLs.
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  Functions to percent-encode or decode characters in URLs.
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}
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}
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\usage{
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\usage{
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URLencode(URL, reserved = FALSE, repeated = FALSE)
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URLencode(URL, reserved = FALSE, repeated = FALSE)
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URLdecode(URL)
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URLdecode(URL)
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}
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}
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\details{
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\details{
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  Characters in a URL other than the English alphanumeric characters and
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  Characters in a URL other than the English alphanumeric characters and
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  \samp{- _ . ~} should be encoded as \code{\%}
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  \samp{- _ . ~} should be encoded as \code{\%}
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  plus a two-digit hexadecimal representation, and any single-byte
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  plus a two-digit hexadecimal representation, and any single-byte
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  character can be so encoded. (Multi-byte characters are encoded
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  character can be so encoded. (Multi-byte characters are encoded
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  byte-by-byte.)
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  byte-by-byte.)  The standard refers to this as \sQuote{percent-encoding}.
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  In addition, \samp{! $ & ' ( ) * + , ; = : / ? @ # [ ]} are reserved
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  In addition, \samp{! $ & ' ( ) * + , ; = : / ? @ # [ ]} are reserved
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  characters, and should be encoded unless used in their reserved sense,
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  characters, and should be encoded unless used in their reserved sense,
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  which is scheme specific.  The default in \code{URLencode} is to leave
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  which is scheme specific.  The default in \code{URLencode} is to leave
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  them alone, which is appropriate for \samp{file://} URLs, but probably
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  them alone, which is appropriate for \samp{file://} URLs, but probably