Enum typed_path::Utf8TypedPath

pub enum Utf8TypedPath<'a> {
    Unix(&'a Utf8UnixPath),
    Windows(&'a Utf8WindowsPath),
}

Represents a path with a known type that can be one of:

• Utf8UnixPath
• Utf8WindowsPath

Variants

Unix(&'a Utf8UnixPath)

Windows(&'a Utf8WindowsPath)

Implementations

impl<'a> Utf8TypedPath<'a>

pub fn new<S: AsRef<str> + ?Sized>(s: &'a S, type: PathType) -> Self

Creates a new path with the given type as its encoding.

pub fn unix<S: AsRef<str> + ?Sized>(s: &'a S) -> Self

Creates a new typed Unix path.

pub fn windows<S: AsRef<str> + ?Sized>(s: &'a S) -> Self

Creates a new typed Windows path.

pub fn derive<S: AsRef<str> + ?Sized>(s: &'a S) -> Self

Creates a new typed path from a byte slice by determining if the path represents a Windows or Unix path. This is accomplished by first trying to parse as a Windows path. If the resulting path contains a prefix such as C: or begins with a \, it is assumed to be a Utf8WindowsPath; otherwise, the slice will be represented as a Utf8UnixPath.

Examples

use typed_path::Utf8TypedPath;

assert!(Utf8TypedPath::derive(r#"C:\some\path\to\file.txt"#).is_windows());
assert!(Utf8TypedPath::derive(r#"\some\path\to\file.txt"#).is_windows());
assert!(Utf8TypedPath::derive(r#"/some/path/to/file.txt"#).is_unix());

// NOTE: If we don't start with a backslash, it's too difficult to
//       determine and we therefore just assume a Unix/POSIX path.
assert!(Utf8TypedPath::derive(r#"some\path\to\file.txt"#).is_unix());
assert!(Utf8TypedPath::derive("file.txt").is_unix());
assert!(Utf8TypedPath::derive("").is_unix());

Examples found in repository

examples/typed_utf8.rs (line 5)

fn main() {
    // Try to be smart to figure out the path (Unix or Windows) automatically
    let path = Utf8TypedPath::derive(r"/path/to/file.txt");

    for component in path.components() {
        println!("{}", component.as_str());
    }
}

pub fn as_str(&self) -> &str

Yields the underlying str slice.

Examples

use typed_path::Utf8TypedPath;

let string = Utf8TypedPath::derive("foo.txt").as_str().to_string();
assert_eq!(string, "foo.txt");

pub fn to_path_buf(&self) -> Utf8TypedPathBuf

Converts a Utf8TypedPath into a Utf8TypedPathBuf.

Examples

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

let path_buf = Utf8TypedPath::derive("foo.txt").to_path_buf();
assert_eq!(path_buf, Utf8TypedPathBuf::from("foo.txt"));

pub fn is_absolute(&self) -> bool

Returns true if the Utf8TypedPath is absolute, i.e., if it is independent of the current directory.

• On Unix (UnixPath]), a path is absolute if it starts with the root, so is_absolute and has_root are equivalent.

• On Windows (WindowsPath), a path is absolute if it has a prefix and starts with the root: c:\windows is absolute, while c:temp and \temp are not.

Examples

use typed_path::Utf8TypedPath;

assert!(!Utf8TypedPath::derive("foo.txt").is_absolute());

pub fn is_relative(&self) -> bool

Returns true if the Utf8TypedPath is relative, i.e., not absolute.

See is_absolute’s documentation for more details.

Examples

use typed_path::Utf8TypedPath;

assert!(Utf8TypedPath::derive("foo.txt").is_relative());

pub fn has_root(&self) -> bool

Returns true if the Utf8TypedPath has a root.

• On Unix (Utf8UnixPath), a path has a root if it begins with /.

• On Windows (Utf8WindowsPath), a path has a root if it:

  • has no prefix and begins with a separator, e.g., \windows
  • has a prefix followed by a separator, e.g., c:\windows but not c:windows
  • has any non-disk prefix, e.g., \\server\share

Examples

use typed_path::Utf8TypedPath;

assert!(Utf8TypedPath::derive("/etc/passwd").has_root());

pub fn parent(&self) -> Option<Self>

Returns the Utf8TypedPath without its final component, if there is one.

Returns None if the path terminates in a root or prefix.

Examples

use typed_path::Utf8TypedPath;

let path = Utf8TypedPath::derive("/foo/bar");
let parent = path.parent().unwrap();
assert_eq!(parent, Utf8TypedPath::derive("/foo"));

let grand_parent = parent.parent().unwrap();
assert_eq!(grand_parent, Utf8TypedPath::derive("/"));
assert_eq!(grand_parent.parent(), None);

pub fn ancestors(&self) -> Utf8TypedAncestors<'a>

Produces an iterator over Utf8TypedPath and its ancestors.

The iterator will yield the Utf8TypedPath that is returned if the parent method is used zero or more times. That means, the iterator will yield &self, &self.parent().unwrap(), &self.parent().unwrap().parent().unwrap() and so on. If the parent method returns None, the iterator will do likewise. The iterator will always yield at least one value, namely &self.

Examples

use typed_path::Utf8TypedPath;

let mut ancestors = Utf8TypedPath::derive("/foo/bar").ancestors();
assert_eq!(ancestors.next(), Some(Utf8TypedPath::derive("/foo/bar")));
assert_eq!(ancestors.next(), Some(Utf8TypedPath::derive("/foo")));
assert_eq!(ancestors.next(), Some(Utf8TypedPath::derive("/")));
assert_eq!(ancestors.next(), None);

let mut ancestors = Utf8TypedPath::derive("../foo/bar").ancestors();
assert_eq!(ancestors.next(), Some(Utf8TypedPath::derive("../foo/bar")));
assert_eq!(ancestors.next(), Some(Utf8TypedPath::derive("../foo")));
assert_eq!(ancestors.next(), Some(Utf8TypedPath::derive("..")));
assert_eq!(ancestors.next(), Some(Utf8TypedPath::derive("")));
assert_eq!(ancestors.next(), None);

pub fn file_name(&self) -> Option<&str>

Returns the final component of the Utf8TypedPath, if there is one.

If the path is a normal file, this is the file name. If it’s the path of a directory, this is the directory name.

Returns None if the path terminates in ...

Examples

use typed_path::Utf8TypedPath;

assert_eq!(Some("bin"), Utf8TypedPath::derive("/usr/bin/").file_name());
assert_eq!(Some("foo.txt"), Utf8TypedPath::derive("tmp/foo.txt").file_name());
assert_eq!(Some("foo.txt"), Utf8TypedPath::derive("foo.txt/.").file_name());
assert_eq!(Some("foo.txt"), Utf8TypedPath::derive("foo.txt/.//").file_name());
assert_eq!(None, Utf8TypedPath::derive("foo.txt/..").file_name());
assert_eq!(None, Utf8TypedPath::derive("/").file_name());

pub fn strip_prefix( &self, base: impl AsRef<str> ) -> Result<Utf8TypedPath<'_>, StripPrefixError>

Returns a path that, when joined onto base, yields self.

Difference from Path

Unlike Path::strip_prefix, this implementation only supports types that implement AsRef<str> instead of AsRef<Path>.

Errors

If base is not a prefix of self (i.e., starts_with returns false), returns Err.

Examples

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

let path = Utf8TypedPath::derive("/test/haha/foo.txt");

assert_eq!(path.strip_prefix("/"), Ok(Utf8TypedPath::derive("test/haha/foo.txt")));
assert_eq!(path.strip_prefix("/test"), Ok(Utf8TypedPath::derive("haha/foo.txt")));
assert_eq!(path.strip_prefix("/test/"), Ok(Utf8TypedPath::derive("haha/foo.txt")));
assert_eq!(path.strip_prefix("/test/haha/foo.txt"), Ok(Utf8TypedPath::derive("")));
assert_eq!(path.strip_prefix("/test/haha/foo.txt/"), Ok(Utf8TypedPath::derive("")));

assert!(path.strip_prefix("test").is_err());
assert!(path.strip_prefix("/haha").is_err());

let prefix = Utf8TypedPathBuf::from("/test/");
assert_eq!(path.strip_prefix(prefix), Ok(Utf8TypedPath::derive("haha/foo.txt")));

pub fn starts_with(&self, base: impl AsRef<str>) -> bool

Determines whether base is a prefix of self.

Only considers whole path components to match.

Difference from Path

Unlike Path::starts_with, this implementation only supports types that implement AsRef<str> instead of AsRef<Path>.

Examples

use typed_path::Utf8TypedPath;

let path = Utf8TypedPath::derive("/etc/passwd");

assert!(path.starts_with("/etc"));
assert!(path.starts_with("/etc/"));
assert!(path.starts_with("/etc/passwd"));
assert!(path.starts_with("/etc/passwd/")); // extra slash is okay
assert!(path.starts_with("/etc/passwd///")); // multiple extra slashes are okay

assert!(!path.starts_with("/e"));
assert!(!path.starts_with("/etc/passwd.txt"));

assert!(!Utf8TypedPath::derive("/etc/foo.rs").starts_with("/etc/foo"));

pub fn ends_with(&self, child: impl AsRef<str>) -> bool

Determines whether child is a suffix of self.

Only considers whole path components to match.

Difference from Path

Unlike Path::ends_with, this implementation only supports types that implement AsRef<str> instead of AsRef<Path>.

Examples

use typed_path::Utf8TypedPath;

let path = Utf8TypedPath::derive("/etc/resolv.conf");

assert!(path.ends_with("resolv.conf"));
assert!(path.ends_with("etc/resolv.conf"));
assert!(path.ends_with("/etc/resolv.conf"));

assert!(!path.ends_with("/resolv.conf"));
assert!(!path.ends_with("conf")); // use .extension() instead

pub fn file_stem(&self) -> Option<&str>

Extracts the stem (non-extension) portion of self.file_name.

The stem is:

• None, if there is no file name;
• The entire file name if there is no embedded .;
• The entire file name if the file name begins with . and has no other .s within;
• Otherwise, the portion of the file name before the final .

Examples

use typed_path::Utf8TypedPath;

assert_eq!("foo", Utf8TypedPath::derive("foo.rs").file_stem().unwrap());
assert_eq!("foo.tar", Utf8TypedPath::derive("foo.tar.gz").file_stem().unwrap());

pub fn extension(&self) -> Option<&str>

Extracts the extension of self.file_name, if possible.

The extension is:

• None, if there is no file name;
• None, if there is no embedded .;
• None, if the file name begins with . and has no other .s within;
• Otherwise, the portion of the file name after the final .

Examples

use typed_path::Utf8TypedPath;

assert_eq!("rs", Utf8TypedPath::derive("foo.rs").extension().unwrap());
assert_eq!("gz", Utf8TypedPath::derive("foo.tar.gz").extension().unwrap());

pub fn normalize(&self) -> Utf8TypedPathBuf

Returns an owned Utf8TypedPathBuf by resolving .. and . segments.

When multiple, sequential path segment separation characters are found (e.g. / for Unix and either \ or / on Windows), they are replaced by a single instance of the platform-specific path segment separator (/ on Unix and \ on Windows).

Examples

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

assert_eq!(
    Utf8TypedPath::derive("foo/bar//baz/./asdf/quux/..").normalize(),
    Utf8TypedPathBuf::from("foo/bar/baz/asdf"),
);

When starting with a root directory, any .. segment whose parent is the root directory will be filtered out:

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

// NOTE: A path cannot be created on its own without a defined encoding
assert_eq!(
    Utf8TypedPath::derive("/../foo").normalize(),
    Utf8TypedPathBuf::from("/foo"),
);

If any .. is left unresolved as the path is relative and no parent is found, it is discarded:

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

assert_eq!(
    Utf8TypedPath::derive("../foo/..").normalize(),
    Utf8TypedPathBuf::from(""),
);

// Windows prefixes also count this way, but the prefix remains
assert_eq!(
    Utf8TypedPath::derive(r"C:..\foo\..").normalize(),
    Utf8TypedPathBuf::from(r"C:"),
);

pub fn absolutize(&self) -> Result<Utf8TypedPathBuf>

Converts a path to an absolute form by normalizing the path, returning a Utf8TypedPathBuf.

In the case that the path is relative, the current working directory is prepended prior to normalizing.

Examples

use typed_path::{utils, Utf8TypedPath};

// With an absolute path, it is just normalized
let path = Utf8TypedPath::derive("/a/b/../c/./d");
assert_eq!(path.absolutize().unwrap(), Utf8TypedPath::derive("/a/c/d"));

// With a relative path, it is first joined with the current working directory
// and then normalized
let cwd = utils::current_dir().unwrap().with_unix_encoding().to_typed_path_buf();
let path = cwd.join("a/b/../c/./d");
assert_eq!(path.absolutize().unwrap(), cwd.join("a/c/d"));

pub fn join(&self, path: impl AsRef<str>) -> Utf8TypedPathBuf

Creates an owned Utf8TypedPathBuf with path adjoined to self.

See Utf8TypedPathBuf::push for more details on what it means to adjoin a path.

Difference from Path

Unlike Path::join, this implementation only supports types that implement AsRef<str> instead of AsRef<Path>.

Examples

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

assert_eq!(
    Utf8TypedPath::derive("/etc").join("passwd"),
    Utf8TypedPathBuf::from("/etc/passwd"),
);

pub fn with_file_name<S: AsRef<str>>(&self, file_name: S) -> Utf8TypedPathBuf

Creates an owned Utf8TypedPathBuf like self but with the given file name.

See Utf8TypedPathBuf::set_file_name for more details.

Examples

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

let path = Utf8TypedPath::derive("/tmp/foo.txt");
assert_eq!(path.with_file_name("bar.txt"), Utf8TypedPathBuf::from("/tmp/bar.txt"));

let path = Utf8TypedPath::derive("/tmp");
assert_eq!(path.with_file_name("var"), Utf8TypedPathBuf::from("/var"));

pub fn with_extension<S: AsRef<str>>(&self, extension: S) -> Utf8TypedPathBuf

Creates an owned Utf8TypedPathBuf like self but with the given extension.

See Utf8TypedPathBuf::set_extension for more details.

Examples

use typed_path::{Utf8TypedPath, Utf8TypedPathBuf};

let path = Utf8TypedPath::derive("foo.rs");
assert_eq!(path.with_extension("txt"), Utf8TypedPathBuf::from("foo.txt"));

let path = Utf8TypedPath::derive("foo.tar.gz");
assert_eq!(path.with_extension(""), Utf8TypedPathBuf::from("foo.tar"));
assert_eq!(path.with_extension("xz"), Utf8TypedPathBuf::from("foo.tar.xz"));
assert_eq!(path.with_extension("").with_extension("txt"), Utf8TypedPathBuf::from("foo.txt"));

pub fn components(&self) -> Utf8TypedComponents<'a>

Produces an iterator over the Utf8TypedComponents of the path.

When parsing the path, there is a small amount of normalization:

• Repeated separators are ignored, so a/b and a//b both have a and b as components.

• Occurrences of . are normalized away, except if they are at the beginning of the path. For example, a/./b, a/b/, a/b/. and a/b all have a and b as components, but ./a/b starts with an additional CurDir component.

• A trailing slash is normalized away, /a/b and /a/b/ are equivalent.

Note that no other normalization takes place; in particular, a/c and a/b/../c are distinct, to account for the possibility that b is a symbolic link (so its parent isn’t a).

Examples

use typed_path::{Utf8TypedPath, Utf8TypedComponent};

let mut components = Utf8TypedPath::derive("/tmp/foo.txt").components();

assert!(components.next().unwrap().is_root());
assert_eq!(components.next().unwrap().as_normal_str(), Some("tmp"));
assert_eq!(components.next().unwrap().as_normal_str(), Some("foo.txt"));
assert_eq!(components.next(), None)

Examples found in repository

examples/typed_utf8.rs (line 7)

fn main() {
    // Try to be smart to figure out the path (Unix or Windows) automatically
    let path = Utf8TypedPath::derive(r"/path/to/file.txt");

    for component in path.components() {
        println!("{}", component.as_str());
    }
}

pub fn iter(&self) -> Utf8TypedIter<'a>

Produces an iterator over the path’s components viewed as str slices.

For more information about the particulars of how the path is separated into components, see components.

Examples

use typed_path::Utf8TypedPath;

let mut it = Utf8TypedPath::derive("/tmp/foo.txt").iter();

assert_eq!(it.next(), Some(typed_path::constants::unix::SEPARATOR_STR));
assert_eq!(it.next(), Some("tmp"));
assert_eq!(it.next(), Some("foo.txt"));
assert_eq!(it.next(), None)

pub fn is_unix(&self) -> bool

Returns true if this path represents a Unix path.

pub fn is_windows(&self) -> bool

Returns true if this path represents a Windows path.

pub fn with_unix_encoding(&self) -> Utf8TypedPathBuf

Converts this Utf8TypedPath into the Unix variant of Utf8TypedPathBuf.

pub fn with_windows_encoding(&self) -> Utf8TypedPathBuf

Converts this Utf8TypedPath into the Unix variant of Utf8TypedPathBuf.

Trait Implementations

impl AsRef<str> for Utf8TypedPath<'_>

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a> Clone for Utf8TypedPath<'a>

fn clone(&self) -> Utf8TypedPath<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for Utf8TypedPath<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Utf8TypedPath<'_>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> From<&'a str> for Utf8TypedPath<'a>

fn from(s: &'a str) -> Self

Converts to this type from the input type.

impl<'a> PartialEq<&'a str> for Utf8TypedPath<'_>

fn eq(&self, path: &&'a str) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialEq<Utf8TypedPath<'_>> for &'a str

fn eq(&self, path: &Utf8TypedPath<'_>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Utf8TypedPath<'_>> for Utf8TypedPathBuf

fn eq(&self, path: &Utf8TypedPath<'_>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Utf8TypedPath<'_>> for str

fn eq(&self, path: &Utf8TypedPath<'_>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Utf8TypedPathBuf> for Utf8TypedPath<'_>

fn eq(&self, path: &Utf8TypedPathBuf) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<str> for Utf8TypedPath<'_>

fn eq(&self, path: &str) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialEq for Utf8TypedPath<'a>

fn eq(&self, other: &Utf8TypedPath<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> TryAsRef<Path> for Utf8TypedPath<'a>

fn try_as_ref(&self) -> Option<&Path>

impl TryAsRef<Utf8Path<Utf8UnixEncoding>> for Utf8TypedPath<'_>

fn try_as_ref(&self) -> Option<&Utf8UnixPath>

impl TryAsRef<Utf8Path<Utf8WindowsEncoding>> for Utf8TypedPath<'_>

fn try_as_ref(&self) -> Option<&Utf8WindowsPath>

impl<'a> Eq for Utf8TypedPath<'a>

impl<'a> StructuralEq for Utf8TypedPath<'a>

impl<'a> StructuralPartialEq for Utf8TypedPath<'a>