bors c00a4648a4 Auto merge of #78833 - CDirkx:parse_prefix, r=dtolnay ... Refactor and fix `parse_prefix` on Windows This PR is an extension of #78692 as well as a general refactor of `parse_prefix`: **Fixes**: There are two errors in the current implementation of `parse_prefix`: Firstly, in the current implementation only `\` is recognized as a separator character in device namespace prefixes. This behavior is only correct for verbatim paths; `"\\.\C:/foo"` should be parsed as `"C:"` instead of `"C:/foo"`. Secondly, the current implementation only handles single separator characters. In non-verbatim paths a series of separator characters should be recognized as a single boundary, e.g. the UNC path `"\\localhost\\\\\\C$\foo"` should be parsed as `"\\localhost\\\\\\C$"` and then `UNC(server: "localhost", share: "C$")`, but currently it is not parsed at all, because it starts being parsed as `\\localhost\` and then has an invalid empty share location. Paths like `"\\.\C:/foo"` and `"\\localhost\\\\\\C$\foo"` are valid on Windows, they are equivalent to just `"C:\foo"`. **Refactoring**: All uses of `&[u8]` within `parse_prefix` are extracted to helper functions and`&OsStr` is used instead. This reduces the number of places unsafe is used: - `get_first_two_components` is adapted to the more general `parse_next_component` and used in more places - code for parsing drive prefixes is extracted to `parse_drive`		2020-12-16 00:47:50 +00:00
..
benches	mv std libs to library/	2020-07-27 19:51:13 -05:00
src	Auto merge of #78833 - CDirkx:parse_prefix, r=dtolnay	2020-12-16 00:47:50 +00:00
tests	Fix SGX CI, take 3	2020-12-07 15:22:34 +01:00
build.rs	Drop support for cloudabi targets	2020-11-22 17:11:41 -05:00
Cargo.toml	std: Update the backtrace crate submodule	2020-11-20 11:56:07 -08:00