Parse a URI string into its elements

Description

This breaks a URI given as a string into its different elements such as protocol/scheme, host, port, file name, query. This information can be used, for example, when constructing URIs relative to a base URI.

The return value is an S3-style object of class URI.

This function uses libxml routines to perform the parsing.

Usage

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parseURI(uri)

Arguments

uri

a single string

Value

A list with 8 elements

scheme

the name of the protocol being used, http, ftp as a string.

authority

a string represeting a rarely used aspect of URIs

server

a string identifying the host, e.g. www.omegahat.net

user

a string giving the name of the user, e.g. in FTP "ftp://duncan@www.omegahat.net", this would yield "duncan"

path

a string identifying the path of the target file

query

the CGI query part of the string, e.g. the bit after '?' of the form name=value&name=value

fragment

a string giving the coo

port

an integer identifying the port number on which the connection is to be made

See Also

getRelativeURL

Examples

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  parseURI("http://www.omegahat.net:8080/RCurl/index.html")
  parseURI("ftp://duncan@www.omegahat.net:8080/RCurl/index.html")

  parseURI("ftp://duncan@www.omegahat.net:8080/RCurl/index.html#my_anchor")

  as(parseURI("http://duncan@www.omegahat.net:8080/RCurl/index.html#my_anchor"), "character")

  as(parseURI("ftp://duncan@www.omegahat.net:8080/RCurl/index.html?foo=1&bar=axd"), "character")

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