standard_lib/fs/path/
display.rs

1use std::ffi::OsStr;
2use std::fmt::{self, Display, Formatter};
3use std::marker::PhantomData;
4use std::os::unix::ffi::OsStrExt;
5
6use super::{Abs, OwnedPath, Path, Rel, PathState};
7
8pub struct DisplayPath<'a, State: PathState> {
9    pub(crate) _phantom: PhantomData<fn() -> State>,
10    pub(crate) inner: &'a Path<State>,
11}
12
13pub struct DisplayFull<'a> {
14    pub(crate) inner: &'a Path<Abs>,
15}
16
17pub struct DisplayHome<'a> {
18    pub(crate) inner: &'a Path<Abs>,
19}
20
21pub struct DisplayDotSlash<'a> {
22    pub(crate) inner: &'a Path<Rel>,
23}
24
25pub struct DisplaySlash<'a> {
26    pub(crate) inner: &'a Path<Rel>,
27}
28
29pub struct DisplayNoLead<'a> {
30    pub(crate) inner: &'a Path<Rel>,
31}
32
33impl<'a> DisplayPath<'a, Abs> {
34    pub const fn full(&self) -> DisplayFull<'a> {
35        DisplayFull {
36            inner: self.inner,
37        }
38    }
39
40    pub const fn shrink_home(&self) -> DisplayHome<'a> {
41        DisplayHome {
42            inner: self.inner,
43        }
44    }
45}
46
47impl<'a> Display for DisplayPath<'a, Abs> {
48    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
49        write!(f, "{}", self.full())
50    }
51}
52
53impl<'a> Display for DisplayFull<'a> {
54    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
55        write!(f, "{}", self.inner.as_os_str().to_string_lossy())
56    }
57}
58
59impl<'a> Display for DisplayHome<'a> {
60    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
61        if let Some(home) = OwnedPath::home()
62            && let Some(rel) = self.inner.relative(&home) {
63            write!(f, "~{}", rel.display().slash())
64        } else {
65            write!(f, "{}", self.inner.as_os_str().to_string_lossy())
66        }
67    }
68}
69
70impl<'a> DisplayPath<'a, Rel> {
71    pub const fn dot_slash(&self) -> DisplayDotSlash<'a> {
72        DisplayDotSlash {
73            inner: self.inner,
74        }
75    }
76
77    pub const fn slash(&self) -> DisplaySlash<'a> {
78        DisplaySlash {
79            inner: self.inner,
80        }
81    }
82    
83    pub const fn no_lead(&self) -> DisplayNoLead<'a> {
84        DisplayNoLead {
85            inner: self.inner,
86        }
87    }
88}
89
90impl<'a> Display for DisplayPath<'a, Rel> {
91    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
92        write!(f, "{}", self.dot_slash())
93    }
94}
95
96impl<'a> Display for DisplayDotSlash<'a> {
97    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
98        write!(f, ".{}", self.inner.as_os_str().to_string_lossy())
99    }
100}
101
102impl<'a> Display for DisplaySlash<'a> {
103    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
104        write!(f, "{}", self.inner.as_os_str().to_string_lossy())
105    }
106}
107
108impl<'a> Display for DisplayNoLead<'a> {
109    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
110        write!(f, "{}", OsStr::from_bytes(
111            &self.inner.as_os_str().as_bytes()[1..]
112        ).to_string_lossy())
113    }
114}
standard_lib/fs/path/display.rs

standard_lib/fs/path/
display.rs
