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Parse package dependency strings.

Source: R/package-deps.R
parse_deps.Rd

Parse package dependency strings.

Usage

parse_deps(string)

Arguments

string

to parse. Should look like "R (>= 3.0), ggplot2" etc.

Value

list of two character vectors: name package names, and version package versions. If version is not specified, it will be stored as NA.

Examples

parse_deps("httr (< 2.1),\nRCurl (>= 3)")
#>    name compare version
#> 1  httr       <     2.1
#> 2 RCurl      >=       3
# only package dependencies are returned
parse_deps("utils (== 2.12.1),\ntools,\nR (>= 2.10),\nmemoise")
#>      name compare version
#> 1   utils      ==  2.12.1
#> 2   tools    <NA>    <NA>
#> 4 memoise    <NA>    <NA>