ucd_parse/extracted/
derived_bidi_class.rs

1use std::path::Path;
2
3use crate::{
4    common::{
5        parse_codepoint_association, CodepointIter, Codepoints, UcdFile,
6        UcdFileByCodepoint,
7    },
8    error::Error,
9};
10
11/// A single row in the `extracted/DerivedBidiClass.txt` file.
12///
13/// This file gives the derived values of the Bidi_Class property.
14#[derive(Clone, Debug, Default, Eq, PartialEq)]
15pub struct DerivedBidiClass {
16    /// The codepoint or codepoint range for this entry.
17    pub codepoints: Codepoints,
18    /// The derived Bidi_Class of the codepoints in this entry.
19    pub bidi_class: String,
20}
21
22impl UcdFile for DerivedBidiClass {
23    fn relative_file_path() -> &'static Path {
24        Path::new("extracted/DerivedBidiClass.txt")
25    }
26}
27
28impl UcdFileByCodepoint for DerivedBidiClass {
29    fn codepoints(&self) -> CodepointIter {
30        self.codepoints.into_iter()
31    }
32}
33
34impl std::str::FromStr for DerivedBidiClass {
35    type Err = Error;
36
37    fn from_str(line: &str) -> Result<DerivedBidiClass, Error> {
38        let (codepoints, bidi_class) = parse_codepoint_association(line)?;
39        Ok(DerivedBidiClass { codepoints, bidi_class: bidi_class.to_string() })
40    }
41}
42
43#[cfg(test)]
44mod tests {
45    use super::DerivedBidiClass;
46
47    #[test]
48    fn parse_single() {
49        let line = "00B5          ; L # L&       MICRO SIGN\n";
50        let row: DerivedBidiClass = line.parse().unwrap();
51        assert_eq!(row.codepoints, 0x00B5);
52        assert_eq!(row.bidi_class, "L");
53    }
54
55    #[test]
56    fn parse_range() {
57        let line = "0030..0039    ; EN # Nd  [10] DIGIT ZERO..DIGIT NINE\n";
58        let row: DerivedBidiClass = line.parse().unwrap();
59        assert_eq!(row.codepoints, (0x0030, 0x0039));
60        assert_eq!(row.bidi_class, "EN");
61    }
62}
ucd_parse/extracted/derived_bidi_class.rs

ucd_parse/extracted/
derived_bidi_class.rs
