[llvm-dev] RFC: Support for preferring paths with forward slashes on Windows
Martin Storsjö via llvm-dev
llvm-dev at lists.llvm.org
Fri Oct 15 13:52:59 PDT 2021
On Fri, 15 Oct 2021, Michael Kruse wrote:
> I also noticed is that the paths printed by clang -v or -### are
> escaping the backslashes and put them into quotes, i.e.
> "C:\\path\\to\\clang.exe" -cc1 "..\\special'^`character .c"
> Interestingly, it still works copy&pasting it to the Windows command
> line [2], but cmd.exe's escape character is ^ and PowerShell's is the
> backtick `. What would the correct output be?
I wasn't aware that cmd.exe had an escape char per se (other than ^ for
line continuations?).
The fact that such slashes are printed double is, iirc, an intentional
quirk, so that the command lines are copypasteable in a variety of
contexts: cmd.exe don't need them doubled (but tolerates them), bash
unescapes them so it also can execute them.
This is actually one downside of using forward slashes, as cmd.exe
wouldn't be able to execute such a command straight out (only the slash
direction of the command executable itself matters though).
// Martin
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