Mercurial > public > mercurial-scm > hg-stable

annotate rust/hg-core/src/utils.rs @ 46128:c58c8f1d63b1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
copies-rust: hide most of the comparison details inside a closure The function that compares values needs various supporting elements that are the same for each call. We are about to both make change to these element and change to call sites in our upcoming work. So abstracting most of the details will help to avoid conflict while these works happen in parallel. Differential Revision: https://phab.mercurial-scm.org/D9426
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Sat, 21 Nov 2020 10:50:14 +0100
parents 9eb07ab3f2d4
children ca3f73cc3cf4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
42767
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
1 // utils module
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
2 //
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
3 // Copyright 2019 Raphaël Gomès <rgomes@octobus.net>
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
4 //
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
5 // This software may be used and distributed according to the terms of the
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
6 // GNU General Public License version 2 or any later version.
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
7
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
8 //! Contains useful functions, traits, structs, etc. for use in core.
4b3b27d567d5 rust-docstrings: add missing module docstrings
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42764
diff changeset
9
44315
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
10 use crate::utils::hg_path::HgPath;
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
11 use std::{io::Write, ops::Deref};
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
12
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
13 pub mod files;
42959
3fe40dd6355d rust-hgpath: add HgPath and HgPathBuf structs to encapsulate handling of paths
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42869
diff changeset
14 pub mod hg_path;
44312
c18dd48cea4a rust-pathauditor: add Rust implementation of the `pathauditor`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44079
diff changeset
15 pub mod path_auditor;
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
16
44079
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
17 /// Useful until rust/issues/56345 is stable
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
18 ///
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
19 /// # Examples
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
20 ///
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
21 /// ```
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
22 /// use crate::hg::utils::find_slice_in_slice;
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
23 ///
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
24 /// let haystack = b"This is the haystack".to_vec();
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
25 /// assert_eq!(find_slice_in_slice(&haystack, b"the"), Some(8));
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
26 /// assert_eq!(find_slice_in_slice(&haystack, b"not here"), None);
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
27 /// ```
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
28 pub fn find_slice_in_slice<T>(slice: &[T], needle: &[T]) -> Option<usize>
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
29 where
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
30 for<'a> &'a [T]: PartialEq,
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
31 {
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
32 slice
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
33 .windows(needle.len())
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
34 .position(|window| window == needle)
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
35 }
191a461d6be6 rust-utils: add util to find a slice in another slice
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42959
diff changeset
36
42610
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
37 /// Replaces the `from` slice with the `to` slice inside the `buf` slice.
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
38 ///
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
39 /// # Examples
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
40 ///
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
41 /// ```
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
42 /// use crate::hg::utils::replace_slice;
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
43 /// let mut line = b"I hate writing tests!".to_vec();
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
44 /// replace_slice(&mut line, b"hate", b"love");
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
45 /// assert_eq!(
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
46 /// line,
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
47 /// b"I love writing tests!".to_vec()
42851
ce6797ef6eab rust: apply more formatting fixes
Yuya Nishihara <yuya@tcha.org>
parents: 42815
diff changeset
48 /// );
42610
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
49 /// ```
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
50 pub fn replace_slice<T>(buf: &mut [T], from: &[T], to: &[T])
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
51 where
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
52 T: Clone + PartialEq,
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
53 {
42611
2f760da140ee rust-utils: remove buggy assertion
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42610
diff changeset
54 if buf.len() < from.len() || from.len() != to.len() {
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
55 return;
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
56 }
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
57 for i in 0..=buf.len() - from.len() {
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
58 if buf[i..].starts_with(from) {
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
59 buf[i..(i + from.len())].clone_from_slice(to);
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
60 }
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
61 }
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
62 }
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
63
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
64 pub trait SliceExt {
42610
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
65 fn trim_end(&self) -> &Self;
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
66 fn trim_start(&self) -> &Self;
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
67 fn trim(&self) -> &Self;
42869
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
68 fn drop_prefix(&self, needle: &Self) -> Option<&Self>;
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
69 }
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
70
44998
26114bd6ec60 rust: do a clippy pass
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44315
diff changeset
71 #[allow(clippy::trivially_copy_pass_by_ref)]
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
72 fn is_not_whitespace(c: &u8) -> bool {
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
73 !(*c as char).is_whitespace()
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
74 }
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
75
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
76 impl SliceExt for [u8] {
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
77 fn trim_end(&self) -> &[u8] {
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
78 if let Some(last) = self.iter().rposition(is_not_whitespace) {
44998
26114bd6ec60 rust: do a clippy pass
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44315
diff changeset
79 &self[..=last]
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
80 } else {
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
81 &[]
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
82 }
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
83 }
42610
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
84 fn trim_start(&self) -> &[u8] {
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
85 if let Some(first) = self.iter().position(is_not_whitespace) {
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
86 &self[first..]
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
87 } else {
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
88 &[]
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
89 }
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
90 }
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
91
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
92 /// ```
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
93 /// use hg::utils::SliceExt;
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
94 /// assert_eq!(
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
95 /// b" to trim ".trim(),
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
96 /// b"to trim"
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
97 /// );
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
98 /// assert_eq!(
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
99 /// b"to trim ".trim(),
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
100 /// b"to trim"
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
101 /// );
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
102 /// assert_eq!(
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
103 /// b" to trim".trim(),
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
104 /// b"to trim"
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
105 /// );
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
106 /// ```
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
107 fn trim(&self) -> &[u8] {
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
108 self.trim_start().trim_end()
5672bb73f61e rust-utils: add docstrings and doctests for utils.rs
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42609
diff changeset
109 }
42869
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
110
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
111 fn drop_prefix(&self, needle: &Self) -> Option<&Self> {
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
112 if self.starts_with(needle) {
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
113 Some(&self[needle.len()..])
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
114 } else {
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
115 None
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
116 }
62eabdf91f85 rustfilepatterns: refactor the pattern of removing a prefix from a &[u8]
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents: 42851
diff changeset
117 }
42453
9609430d3625 rust-filepatterns: use bytes instead of String
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
118 }
44315
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
119
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
120 pub trait Escaped {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
121 /// Return bytes escaped for display to the user
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
122 fn escaped_bytes(&self) -> Vec<u8>;
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
123 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
124
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
125 impl Escaped for u8 {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
126 fn escaped_bytes(&self) -> Vec<u8> {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
127 let mut acc = vec![];
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
128 match self {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
129 c @ b'\'' | c @ b'\\' => {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
130 acc.push(b'\\');
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
131 acc.push(*c);
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
132 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
133 b'\t' => {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
134 acc.extend(br"\\t");
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
135 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
136 b'\n' => {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
137 acc.extend(br"\\n");
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
138 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
139 b'\r' => {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
140 acc.extend(br"\\r");
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
141 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
142 c if (*c < b' ' || *c >= 127) => {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
143 write!(acc, "\\x{:x}", self).unwrap();
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
144 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
145 c => {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
146 acc.push(*c);
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
147 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
148 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
149 acc
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
150 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
151 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
152
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
153 impl<'a, T: Escaped> Escaped for &'a [T] {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
154 fn escaped_bytes(&self) -> Vec<u8> {
44998
26114bd6ec60 rust: do a clippy pass
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44315
diff changeset
155 self.iter().flat_map(Escaped::escaped_bytes).collect()
44315
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
156 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
157 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
158
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
159 impl<T: Escaped> Escaped for Vec<T> {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
160 fn escaped_bytes(&self) -> Vec<u8> {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
161 self.deref().escaped_bytes()
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
162 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
163 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
164
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
165 impl<'a> Escaped for &'a HgPath {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
166 fn escaped_bytes(&self) -> Vec<u8> {
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
167 self.as_bytes().escaped_bytes()
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
168 }
aa0fc32ece9e rust-utils: add `Escaped` trait
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
169 }
46091
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
170
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
171 // TODO: use the str method when we require Rust 1.45
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
172 pub(crate) fn strip_suffix<'a>(s: &'a str, suffix: &str) -> Option<&'a str> {
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
173 if s.ends_with(suffix) {
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
174 Some(&s[..s.len() - suffix.len()])
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
175 } else {
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
176 None
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
177 }
9eb07ab3f2d4 rhg: use persistent nodemap when available
Simon Sapin <simon-commits@exyr.org>
parents: 44998
diff changeset
178 }