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 `DerivedCoreProperties.txt` file.
12#[derive(Clone, Debug, Default, Eq, PartialEq)]
13pub struct CoreProperty {
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 CoreProperty {
21 fn relative_file_path() -> &'static Path {
22 Path::new("DerivedCoreProperties.txt")
23 }
24}
25
26impl UcdFileByCodepoint for CoreProperty {
27 fn codepoints(&self) -> CodepointIter {
28 self.codepoints.into_iter()
29 }
30}
31
32impl std::str::FromStr for CoreProperty {
33 type Err = Error;
34
35 fn from_str(line: &str) -> Result<CoreProperty, Error> {
36 let (codepoints: Codepoints, property: &str) = parse_codepoint_association(line)?;
37 Ok(CoreProperty { codepoints, property: property.to_string() })
38 }
39}
40
41#[cfg(test)]
42mod tests {
43 use super::CoreProperty;
44
45 #[test]
46 fn parse_single() {
47 let line =
48 "1163D ; Case_Ignorable # Mn MODI SIGN ANUSVARA\n";
49 let row: CoreProperty = line.parse().unwrap();
50 assert_eq!(row.codepoints, 0x1163D);
51 assert_eq!(row.property, "Case_Ignorable");
52 }
53
54 #[test]
55 fn parse_range() {
56 let line = "11133..11134 ; Grapheme_Link # Mn [2] CHAKMA VIRAMA..CHAKMA MAAYYAA\n";
57 let row: CoreProperty = line.parse().unwrap();
58 assert_eq!(row.codepoints, (0x11133, 0x11134));
59 assert_eq!(row.property, "Grapheme_Link");
60 }
61}
62