pub fn is_math_sentence_delimiter(c: char) -> bool {
c == '\u{2800}'
}
#[cfg(test)]
mod tests {
use super::*;
fn is_math_sentence_delimiter_pair(left: char, right: char) -> bool {
is_math_sentence_delimiter(left) && is_math_sentence_delimiter(right)
}
#[test]
fn detects_math_sentence_delimiter() {
assert!(is_math_sentence_delimiter('\u{2800}'));
}
#[test]
fn detects_math_sentence_delimiter_pair() {
assert!(is_math_sentence_delimiter_pair('\u{2800}', '\u{2800}'));
assert!(!is_math_sentence_delimiter_pair('a', '\u{2800}'));
assert!(!is_math_sentence_delimiter_pair('\u{2800}', 'b'));
}
}