## ----eval=FALSE---------------------------------------------------------------
# URLdecode("test%gIL")
# Error in rawToChar(out) : embedded nul in string: '\0L'
# In addition: Warning message:
# In URLdecode("%gIL") : out-of-range values treated as 0 in coercion to raw

## ----eval=FALSE---------------------------------------------------------------
# URLencode("https://en.wikipedia.org/wiki/Article", reserved = TRUE)
# [1] "https%3a%2f%2fen.wikipedia.org%2fwiki%2fArticle"

## ----eval=FALSE---------------------------------------------------------------
# library(urltools)
# url_decode("test%gIL")
# [1] "test"
# url_encode("https://en.wikipedia.org/wiki/Article")
# [1] "https://en.wikipedia.org%2fwiki%2fArticle"

## ----eval=FALSE---------------------------------------------------------------
# > parsed_address <- url_parse("https://en.wikipedia.org/wiki/Article")
# > str(parsed_address)
# 'data.frame':	1 obs. of  6 variables:
#  $ scheme   : chr "https"
#  $ domain   : chr "en.wikipedia.org"
#  $ port     : chr NA
#  $ path     : chr "wiki/Article"
#  $ parameter: chr NA
#  $ fragment : chr NA

## ----eval=FALSE---------------------------------------------------------------
# > url_compose(parsed_address)
# [1] "https://en.wikipedia.org/wiki/article"

## ----eval=FALSE---------------------------------------------------------------
# url <- "https://en.wikipedia.org/wiki/Article"
# scheme(url)
# "https"
# scheme(url) <- "ftp"
# url
# "ftp://en.wikipedia.org/wiki/Article"

## ----eval=FALSE---------------------------------------------------------------
# > url <- "https://en.wikipedia.org/wiki/Article"
# > domain_name <- domain(url)
# > domain_name
# [1] "en.wikipedia.org"
# > str(suffix_extract(domain_name))
# 'data.frame':	1 obs. of  4 variables:
#  $ host     : chr "en.wikipedia.org"
#  $ subdomain: chr "en"
#  $ domain   : chr "wikipedia"
#  $ suffix      : chr "org"

## ----eval=FALSE---------------------------------------------------------------
# domain_name <- domain("https://en.wikipedia.org/wiki/Article")
# updated_suffixes <- suffix_refresh()
# suffix_extract(domain_name, updated_suffixes)

## ----eval=FALSE---------------------------------------------------------------
# domain_name <- domain("https://en.wikipedia.org/wiki/Article")
# host_extract(domain_name)

## ----eval=FALSE---------------------------------------------------------------
# > str(param_get(urls = "http://en.wikipedia.org/wiki/api.php?action=parse&pageid=1023&export=json",
#                      parameter_names = c("pageid","export")))
# 'data.frame':	1 obs. of  2 variables:
#  $ pageid: chr "1023"
#  $ export: chr "json"

## ----eval=FALSE---------------------------------------------------------------
# url <- "http://en.wikipedia.org/wiki/api.php?action=parse&pageid=1023&export=json"
# url <- param_set(url, key = "pageid", value = "12")
# url
# # [1] "http://en.wikipedia.org/wiki/api.php?action=parse&pageid=12&export=json"

## ----eval=FALSE---------------------------------------------------------------
# url <- "http://en.wikipedia.org/wiki/api.php"
# url <- param_set(url, key = "pageid", value = "12")
# url
# # [1] "http://en.wikipedia.org/wiki/api.php?pageid=12"

## ----eval=FALSE---------------------------------------------------------------
# url <- "http://en.wikipedia.org/wiki/api.php?action=parse&pageid=1023&export=json"
# url <- param_remove(url, keys = c("action","export"))
# url
# # [1] "http://en.wikipedia.org/wiki/api.php?pageid=1023"