[Issue 19502] New: windows command line arguments wrongly split

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19502

          Issue ID: 19502
           Summary: windows command line arguments wrongly split
           Product: D
           Version: D2
          Hardware: All
                OS: Windows
            Status: NEW
          Severity: major
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: john.loughran.colvin at gmail.com

Druntime currently uses CommandLineToArgvW to deal with the command line args
on windows, which is a close but not exact match to how the C runtime on
windows works.

In the case where the command line looks like this:

"C:\test\"\blah.exe

Druntime using CommandLineToArgvW parses this as

["C:\\test\\", "\\blah.exe"]

note the 2 !!! arguments. The c runtime does

["C:\test\\blah.exe"]


The result is that programs that look at args might behave completely
differently depending on exactly how the path to them is written.

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