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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;
#[derive(Clone, Debug, Default, Eq, PartialEq)]
pub struct DerivedNumericType {
pub codepoints: Codepoints,
pub numeric_type: String,
}
impl UcdFile for DerivedNumericType {
fn relative_file_path() -> &'static Path {
Path::new("extracted/DerivedNumericType.txt")
}
}
impl UcdFileByCodepoint for DerivedNumericType {
fn codepoints(&self) -> CodepointIter {
self.codepoints.into_iter()
}
}
impl FromStr for DerivedNumericType {
type Err = Error;
fn from_str(line: &str) -> Result<DerivedNumericType, Error> {
let (codepoints, numeric_type) = parse_codepoint_association(line)?;
Ok(DerivedNumericType {
codepoints,
numeric_type: numeric_type.to_string(),
})
}
}
#[cfg(test)]
mod tests {
use super::DerivedNumericType;
#[test]
fn parse_single() {
let line =
"2189 ; Numeric # No VULGAR FRACTION ZERO THIRDS\n";
let row: DerivedNumericType = line.parse().unwrap();
assert_eq!(row.codepoints, 0x2189);
assert_eq!(row.numeric_type, "Numeric");
}
#[test]
fn parse_range() {
let line = "00B2..00B3 ; Digit # No [2] SUPERSCRIPT TWO..SUPERSCRIPT THREE\n";
let row: DerivedNumericType = line.parse().unwrap();
assert_eq!(row.codepoints, (0x00B2, 0x00B3));
assert_eq!(row.numeric_type, "Digit");
}
}