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comparison rust/hg-core/src/utils.rs @ 42869:62eabdf91f85

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rustfilepatterns: refactor the pattern of removing a prefix from a &[u8] Differential Revision: https://phab.mercurial-scm.org/D6766
author Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
date Mon, 26 Aug 2019 08:25:01 -0400
parents ce6797ef6eab
children 3fe40dd6355d
comparison
equal deleted inserted replaced
42868:96ddf83fc267 42869:62eabdf91f85
38 38
39 pub trait SliceExt { 39 pub trait SliceExt {
40 fn trim_end(&self) -> &Self; 40 fn trim_end(&self) -> &Self;
41 fn trim_start(&self) -> &Self; 41 fn trim_start(&self) -> &Self;
42 fn trim(&self) -> &Self; 42 fn trim(&self) -> &Self;
43 fn drop_prefix(&self, needle: &Self) -> Option<&Self>;
43 } 44 }
44 45
45 fn is_not_whitespace(c: &u8) -> bool { 46 fn is_not_whitespace(c: &u8) -> bool {
46 !(*c as char).is_whitespace() 47 !(*c as char).is_whitespace()
47 } 48 }
78 /// ); 79 /// );
79 /// ``` 80 /// ```
80 fn trim(&self) -> &[u8] { 81 fn trim(&self) -> &[u8] {
81 self.trim_start().trim_end() 82 self.trim_start().trim_end()
82 } 83 }
84
85 fn drop_prefix(&self, needle: &Self) -> Option<&Self> {
86 if self.starts_with(needle) {
87 Some(&self[needle.len()..])
88 } else {
89 None
90 }
91 }
83 } 92 }