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/DerivedName.txt` file.
12///
13/// This file gives the derived values of the Name property.
14#[derive(Clone, Debug, Default, Eq, PartialEq)]
15pub struct DerivedName {
16 /// The codepoint or codepoint range for this entry.
17 pub codepoints: Codepoints,
18 /// The derived Name of the codepoints in this entry.
19 pub name: String,
20}
21
22impl UcdFile for DerivedName {
23 fn relative_file_path() -> &'static Path {
24 Path::new("extracted/DerivedName.txt")
25 }
26}
27
28impl UcdFileByCodepoint for DerivedName {
29 fn codepoints(&self) -> CodepointIter {
30 self.codepoints.into_iter()
31 }
32}
33
34impl std::str::FromStr for DerivedName {
35 type Err = Error;
36
37 fn from_str(line: &str) -> Result<DerivedName, Error> {
38 let (codepoints: Codepoints, name: &str) = parse_codepoint_association(line)?;
39 Ok(DerivedName { codepoints, name: name.to_string() })
40 }
41}
42
43#[cfg(test)]
44mod tests {
45 use super::DerivedName;
46
47 #[test]
48 fn parse_single() {
49 let line = "0021 ; EXCLAMATION MARK\n";
50 let row: DerivedName = line.parse().unwrap();
51 assert_eq!(row.codepoints, 0x0021);
52 assert_eq!(row.name, "EXCLAMATION MARK");
53 }
54
55 #[test]
56 fn parse_range() {
57 let line = "3400..4DBF ; CJK UNIFIED IDEOGRAPH-*\n";
58 let row: DerivedName = line.parse().unwrap();
59 assert_eq!(row.codepoints, (0x3400, 0x4DBF));
60 assert_eq!(row.name, "CJK UNIFIED IDEOGRAPH-*");
61 }
62}
63