Issue #7412 has been updated by Hiroshi SHIBATA.

Target version changed from 2.1.0 to current: 2.2.0

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Feature #7412: Pathname#relative_path_from does not support mixed directory separators on windows
https://bugs.ruby-lang.org/issues/7412#change-44750

* Author: Syver Enstad
* Status: Assigned
* Priority: Normal
* Assignee: Akira Tanaka
* Category: lib
* Target version: current: 2.2.0
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=begin
The support for mixing backslashes and forward slashes in the pathname module in the standard library seems to be broken on windows

    require 'pathname'
    base = Pathname.new("c:\\")
    filepath = Pathname.new("c:/foo/bar/file.ext")
    base.relative_path_from(filepath)

raises `ArgumentError: different prefix: "c:\\" and "c:/foo/bar/file.ext"`

Changing filepath to contain backslashes fixes the problem

    filepath = Pathname.new("c:\\foo\\bar\\file.ext")
    base.relative_path_from(filepath)
    
`=> #<Pathname:../../..>`
=end




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