ucd_parse/
derived_normalization_properties.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 `DerivedNormalizationProps.txt` file.
12#[derive(Clone, Debug, Default, Eq, PartialEq)]
13pub struct DerivedNormalizationProperty {
14    /// The codepoint or codepoint range for this entry.
15    pub codepoints: Codepoints,
16    /// The property name assigned to the codepoints in this entry.
17    pub property: String,
18}
19
20impl UcdFile for DerivedNormalizationProperty {
21    fn relative_file_path() -> &'static Path {
22        Path::new("DerivedNormalizationProps.txt")
23    }
24}
25
26impl UcdFileByCodepoint for DerivedNormalizationProperty {
27    fn codepoints(&self) -> CodepointIter {
28        self.codepoints.into_iter()
29    }
30}
31
32impl std::str::FromStr for DerivedNormalizationProperty {
33    type Err = Error;
34
35    fn from_str(line: &str) -> Result<DerivedNormalizationProperty, Error> {
36        let (codepoints, property) = parse_codepoint_association(line)?;
37        Ok(DerivedNormalizationProperty {
38            codepoints,
39            property: property.to_string(),
40        })
41    }
42}
43
44#[cfg(test)]
45mod tests {
46    use super::DerivedNormalizationProperty;
47
48    #[test]
49    fn parse_single() {
50        let line =
51            "00A0          ; Changes_When_NFKC_Casefolded # Zs       NO-BREAK SPACE\n";
52        let row: DerivedNormalizationProperty = line.parse().unwrap();
53        assert_eq!(row.codepoints, 0xA0);
54        assert_eq!(row.property, "Changes_When_NFKC_Casefolded");
55    }
56
57    #[test]
58    fn parse_range() {
59        let line = "0041..005A    ; Changes_When_NFKC_Casefolded # L&  [26] LATIN CAPITAL LETTER A..LATIN CAPITAL LETTER Z\n";
60        let row: DerivedNormalizationProperty = line.parse().unwrap();
61        assert_eq!(row.codepoints, (0x41, 0x5A));
62        assert_eq!(row.property, "Changes_When_NFKC_Casefolded");
63    }
64}
ucd_parse/derived_normalization_properties.rs

ucd_parse/
derived_normalization_properties.rs
