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use std::path::Path;
use std::str::FromStr;
use crate::common::{
parse_codepoint_association, CodepointIter, Codepoints, UcdFile,
UcdFileByCodepoint,
};
use crate::error::Error;
/// A single row in the `Scripts.txt` file.
#[derive(Clone, Debug, Default, Eq, PartialEq)]
pub struct Script {
/// The codepoint or codepoint range for this entry.
pub codepoints: Codepoints,
/// The script name assigned to the codepoints in this entry.
pub script: String,
}
impl UcdFile for Script {
fn relative_file_path() -> &'static Path {
Path::new("Scripts.txt")
}
}
impl UcdFileByCodepoint for Script {
fn codepoints(&self) -> CodepointIter {
self.codepoints.into_iter()
}
}
impl FromStr for Script {
type Err = Error;
fn from_str(line: &str) -> Result<Script, Error> {
let (codepoints, script) = parse_codepoint_association(line)?;
Ok(Script { codepoints, script: script.to_string() })
}
}
#[cfg(test)]
mod tests {
use super::Script;
#[test]
fn parse_single() {
let line = "10A7F ; Old_South_Arabian # Po OLD SOUTH ARABIAN NUMERIC INDICATOR\n";
let row: Script = line.parse().unwrap();
assert_eq!(row.codepoints, 0x10A7F);
assert_eq!(row.script, "Old_South_Arabian");
}
#[test]
fn parse_range() {
let line = "1200..1248 ; Ethiopic # Lo [73] ETHIOPIC SYLLABLE HA..ETHIOPIC SYLLABLE QWA\n";
let row: Script = line.parse().unwrap();
assert_eq!(row.codepoints, (0x1200, 0x1248));
assert_eq!(row.script, "Ethiopic");
}
}
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