forked from mirrors/jj
51 lines
1.7 KiB
Rust
51 lines
1.7 KiB
Rust
|
// Copyright 2021-2023 The Jujutsu Authors
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// https://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
//! String helpers.
|
||
|
|
|
||
|
|
/// Pattern to be tested against string property like commit description or
|
||
|
|
/// branch name.
|
||
|
|
#[derive(Clone, Debug, Eq, PartialEq)]
|
||
|
|
pub enum StringPattern {
|
||
|
|
/// Matches strings exactly equal to `string`.
|
||
|
|
Exact(String),
|
||
|
|
/// Matches strings that contain `substring`.
|
||
|
|
Substring(String),
|
||
|
|
}
|
||
|
|
|
||
|
|
impl StringPattern {
|
||
|
|
/// Pattern that matches any string.
|
||
|
|
pub const fn everything() -> Self {
|
||
|
|
StringPattern::Substring(String::new())
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Returns a literal pattern if this should match input strings exactly.
|
||
|
|
///
|
||
|
|
/// This can be used to optimize map lookup by exact key.
|
||
|
|
pub fn as_exact(&self) -> Option<&str> {
|
||
|
|
match self {
|
||
|
|
StringPattern::Exact(literal) => Some(literal),
|
||
|
|
StringPattern::Substring(_) => None,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Returns true if this pattern matches the `haystack`.
|
||
|
|
pub fn matches(&self, haystack: &str) -> bool {
|
||
|
|
match self {
|
||
|
|
StringPattern::Exact(literal) => haystack == literal,
|
||
|
|
StringPattern::Substring(needle) => haystack.contains(needle),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|