Links to local/UNC files, the file: URI

[hginzel]

Generate proper links to local files and when the file: URI is used, please. E.g.

• [file](C:\Temp\file.txt) should produce href="file:///C:/Temp/file.txt" link.
• [file](C:/Temp/file.txt) should produce href="file:///C:/Temp/file.txt" link.
• [file](file:///C:/Temp/file.txt) should produce href="file:///C:/Temp/file.txt" link.
• [file](C:\Temp dir\file with spaces.txt) should produce href="file:///C:/Temp dir/file with spaces.txt" link.
• [X](\\server\folder) should produce href="file://///server/folder" link.
• [X](file://///server/folder) should produce href="file://///server/folder" link.

https://en.wikipedia.org/wiki/File_URI_scheme
https://tools.ietf.org/html/rfc3986
http://kb.mozillazine.org/Links_to_local_pages_don't_work
https://addons.mozilla.org/en-US/firefox/addon/local-filesystem-links