Windows path prefixes, e.g., C:
or \\server\share
.
Windows uses a variety of path prefix styles, including references to drive
volumes (like C:
), network shared folders (like \\server\share
), and
others. In addition, some path prefixes are "verbatim" (i.e., prefixed with
\\?\
), in which case /
is not treated as a separator and essentially
no normalization is performed.
use std::path::{Component, Path, Prefix};
use std::path::Prefix::*;
use std::ffi::OsStr;
fn get_path_prefix(s: &str) -> Prefix {
let path = Path::new(s);
match path.components().next().unwrap() {
Component::Prefix(prefix_component) => prefix_component.kind(),
_ => panic!(),
}
}
assert_eq!(Verbatim(OsStr::new("pictures")),
get_path_prefix(r"\\?\pictures\kittens"));
assert_eq!(VerbatimUNC(OsStr::new("server"), OsStr::new("share")),
get_path_prefix(r"\\?\UNC\server\share"));
assert_eq!(VerbatimDisk(b'C'), get_path_prefix(r"\\?\c:\"));
assert_eq!(DeviceNS(OsStr::new("BrainInterface")),
get_path_prefix(r"\\.\BrainInterface"));
assert_eq!(UNC(OsStr::new("server"), OsStr::new("share")),
get_path_prefix(r"\\server\share"));
assert_eq!(Disk(b'C'), get_path_prefix(r"C:\Users\Rust\Pictures\Ferris"));
Verbatim prefix, e.g., \\?\cat_pics
.
Verbatim prefixes consist of \\?\
immediately followed by the given
component.
Verbatim prefix using Windows' Uniform Naming Convention,
e.g., \\?\UNC\server\share
.
Verbatim UNC prefixes consist of \\?\UNC\
immediately followed by the
server's hostname and a share name.
Verbatim disk prefix, e.g., \\?\C:\
.
Verbatim disk prefixes consist of \\?\
immediately followed by the
drive letter and :\
.
Device namespace prefix, e.g., \\.\COM42
.
Device namespace prefixes consist of \\.\
immediately followed by the
device name.
Prefix using Windows' Uniform Naming Convention, e.g.
\\server\share
.
UNC prefixes consist of the server's hostname and a share name.
Prefix C:
for the given disk drive.
Determines if the prefix is verbatim, i.e., begins with \\?\
.
use std::path::Prefix::*;
use std::ffi::OsStr;
assert!(Verbatim(OsStr::new("pictures")).is_verbatim());
assert!(VerbatimUNC(OsStr::new("server"), OsStr::new("share")).is_verbatim());
assert!(VerbatimDisk(b'C').is_verbatim());
assert!(!DeviceNS(OsStr::new("BrainInterface")).is_verbatim());
assert!(!UNC(OsStr::new("server"), OsStr::new("share")).is_verbatim());
assert!(!Disk(b'C').is_verbatim());
Performs copy-assignment from source
. Read more
Feeds this value into the given [Hasher
]. Read more
Feeds a slice of this type into the given [Hasher
]. Read more
This method tests for self
and other
values to be equal, and is used by ==
. Read more
This method tests for !=
.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
Formats the value using the given formatter. Read more
This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self | 1.21.0 [src] |
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self | 1.21.0 [src] |
Compares and returns the minimum of two values. Read more
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
type Error = <U as TryFrom<T>>::Error
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Mutably borrows from an owned value. Read more