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Artoria2e5/README.md

Created May 19, 2021 02:48
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glob(3) for winpaths
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README.md

Instead of writing stuff I decided to chicken out and talk.

Anyways, Windows paths use \ as the path separator. You might see it as horrible (it is), but for globbing it is actually fine since ? and * are disallowed in filenames. You will still need to escape [ and the extglob (, but recall that | is disallowed too so you can just use that as the escape character.

You may or may not need to have a compile step to convert this glob into actual glob(7). For that you just replace all instances of \ with /, and all instances of | with \. The drivename handling will depend on the environment at hand; for Cygwin-based systems, you have:

  • (\\\\\?\)^([A-Z]): becomes /proc/cygdrive/$2
  • ^\\\\: becomes //

This replacement with cygdrive will inflate the string size and make it impossible to do it in-place, so I recommend not doing it if possible.

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why am I going thru my own gists?

well. I've got the code written out at https://cygwin.com/pipermail/cygwin-patches/2021q2/011367.html. I got lost in code review as one always do. there might even be a Cygwin GitHub PR I'm too ashamed to link to, which contains more mentions to this stuff.

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