harper_core/patterns/
whitespace_pattern.rs

1use super::Pattern;
2
3pub struct WhitespacePattern;
4
5impl Pattern for WhitespacePattern {
6    fn matches(&self, tokens: &[crate::Token], _source: &[char]) -> usize {
7        tokens
8            .iter()
9            .position(|t| !t.kind.is_whitespace())
10            .unwrap_or(tokens.len())
11    }
12}