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@@ -15,7 +15,7 pub use dirstate::{ | |||||
15 | DirstateVec, |
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15 | DirstateVec, | |
16 | }; |
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16 | }; | |
17 | mod filepatterns; |
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17 | mod filepatterns; | |
18 | mod utils; |
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18 | pub mod utils; | |
19 |
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19 | |||
20 | pub use filepatterns::{ |
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20 | pub use filepatterns::{ | |
21 | build_single_regex, read_pattern_file, PatternSyntax, PatternTuple, |
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21 | build_single_regex, read_pattern_file, PatternSyntax, PatternTuple, |
@@ -1,10 +1,25 | |||||
1 | pub mod files; |
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1 | pub mod files; | |
2 |
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2 | |||
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3 | /// Replaces the `from` slice with the `to` slice inside the `buf` slice. | |||
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4 | /// | |||
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5 | /// # Examples | |||
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6 | /// | |||
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7 | /// ``` | |||
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8 | /// use crate::hg::utils::replace_slice; | |||
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9 | /// let mut line = b"I hate writing tests!".to_vec(); | |||
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10 | /// replace_slice(&mut line, b"hate", b"love"); | |||
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11 | /// assert_eq!( | |||
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12 | /// line, | |||
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13 | /// b"I love writing tests!".to_vec() | |||
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14 | ///); | |||
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15 | /// | |||
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16 | /// ``` | |||
3 | pub fn replace_slice<T>(buf: &mut [T], from: &[T], to: &[T]) |
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17 | pub fn replace_slice<T>(buf: &mut [T], from: &[T], to: &[T]) | |
4 | where |
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18 | where | |
5 | T: Clone + PartialEq, |
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19 | T: Clone + PartialEq, | |
6 | { |
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20 | { | |
7 | if buf.len() < from.len() || from.len() != to.len() { |
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21 | assert_eq!(from.len(), to.len()); | |
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22 | if buf.len() < from.len() { | |||
8 | return; |
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23 | return; | |
9 | } |
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24 | } | |
10 | for i in 0..=buf.len() - from.len() { |
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25 | for i in 0..=buf.len() - from.len() { | |
@@ -15,8 +30,9 where | |||||
15 | } |
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30 | } | |
16 |
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31 | |||
17 | pub trait SliceExt { |
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32 | pub trait SliceExt { | |
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33 | fn trim_end(&self) -> &Self; | |||
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34 | fn trim_start(&self) -> &Self; | |||
18 | fn trim(&self) -> &Self; |
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35 | fn trim(&self) -> &Self; | |
19 | fn trim_end(&self) -> &Self; |
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20 | } |
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36 | } | |
21 |
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37 | |||
22 | fn is_not_whitespace(c: &u8) -> bool { |
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38 | fn is_not_whitespace(c: &u8) -> bool { | |
@@ -24,17 +40,6 fn is_not_whitespace(c: &u8) -> bool { | |||||
24 | } |
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40 | } | |
25 |
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41 | |||
26 | impl SliceExt for [u8] { |
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42 | impl SliceExt for [u8] { | |
27 | fn trim(&self) -> &[u8] { |
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28 | if let Some(first) = self.iter().position(is_not_whitespace) { |
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29 | if let Some(last) = self.iter().rposition(is_not_whitespace) { |
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30 | &self[first..last + 1] |
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31 | } else { |
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32 | unreachable!(); |
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33 | } |
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34 | } else { |
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35 | &[] |
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36 | } |
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37 | } |
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38 | fn trim_end(&self) -> &[u8] { |
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43 | fn trim_end(&self) -> &[u8] { | |
39 | if let Some(last) = self.iter().rposition(is_not_whitespace) { |
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44 | if let Some(last) = self.iter().rposition(is_not_whitespace) { | |
40 | &self[..last + 1] |
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45 | &self[..last + 1] | |
@@ -42,4 +47,30 impl SliceExt for [u8] { | |||||
42 | &[] |
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47 | &[] | |
43 | } |
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48 | } | |
44 | } |
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49 | } | |
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50 | fn trim_start(&self) -> &[u8] { | |||
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51 | if let Some(first) = self.iter().position(is_not_whitespace) { | |||
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52 | &self[first..] | |||
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53 | } else { | |||
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54 | &[] | |||
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55 | } | |||
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56 | } | |||
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57 | ||||
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58 | /// ``` | |||
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59 | /// use hg::utils::SliceExt; | |||
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60 | /// assert_eq!( | |||
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61 | /// b" to trim ".trim(), | |||
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62 | /// b"to trim" | |||
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63 | /// ); | |||
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64 | /// assert_eq!( | |||
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65 | /// b"to trim ".trim(), | |||
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66 | /// b"to trim" | |||
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67 | /// ); | |||
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68 | /// assert_eq!( | |||
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69 | /// b" to trim".trim(), | |||
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70 | /// b"to trim" | |||
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71 | /// ); | |||
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72 | /// ``` | |||
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73 | fn trim(&self) -> &[u8] { | |||
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74 | self.trim_start().trim_end() | |||
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75 | } | |||
45 | } |
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76 | } |
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