verco 1.6.0

A simple Git/Hg version control client based on keyboard shortcuts
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#[derive(Default)]
pub struct RevisionShortcut {
	hashes: Vec<String>,
}

impl RevisionShortcut {
	pub fn update_hashes(&mut self, hashes: Vec<String>) {
		self.hashes = hashes;
	}

	pub fn replace_occurrences(&self, text: &mut String) {
		let mut final_text = String::new();
		final_text.push_str(&text[..]);

		for (i, h) in self.hashes.iter().enumerate() {
			if let Some(shortcut) = std::char::from_u32('A' as u32 + i as u32) {
				let replacement = format!("{} ({})", h, shortcut);
				final_text = final_text.replacen(h, &replacement[..], 1);
			}
		}

		text.clear();
		text.push_str(&final_text[..]);
	}

	pub fn get_hash(&self, target: &str) -> Option<&str> {
		if target.len() != 1 {
			return None;
		}

		let shortcut = target.chars().next().unwrap() as i32;
		let index = shortcut - 'A' as i32;
		if index < 0 || index >= self.hashes.len() as i32 {
			return None;
		}

		Some(&self.hashes[index as usize][..])
	}
}