chordlib 0.8.1

Work with chord-and-lyrics songs: parse, transform, and render them to multiple formats
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

pub struct TabIterator<'a> {
    content: &'a str,
}

impl<'a> TabIterator<'a> {
    pub fn new(content: &'a str) -> Self {
        Self { content }
    }
}

impl<'a> Iterator for TabIterator<'a> {
    type Item = &'a str;

    fn next(&mut self) -> Option<Self::Item> {
        if self.content.is_empty() {
            return None;
        }
        if self.content.starts_with("[tab]") {
            self.content = &self.content[5..];
            let index = self.content.find("[/tab]")?;
            let result = &self.content[..index];
            self.content = self.content[index + 6..].trim_start_matches('\n');
            Some(result)
        } else if let Some(index) = self.content.find('\n') {
            let result = &self.content[..index];
            self.content = &self.content[index + 1..];
            Some(result)
        } else {
            let result = self.content;
            self.content = "";
            Some(result)
        }
    }
}