search.rs

crates/cortex-core/src/storage/search.rs

1. /// Turn what a person typed into a safe FTS5 query: every word quoted (so
2. /// operators and punctuation cannot cause syntax errors) and the last word a
3. /// prefix match, so results appear while typing.
4. pub fn fts_query(input: &str) -> Option<String> {
5. let words: Vec<String> = input
6. .split(|c: char| !(c.is_alphanumeric() || c == '_' || c == '\''))
7. .map(|w| w.trim_matches('\''))
8. .filter(|w| !w.is_empty())
9. .map(|w| format!("\"{}\"", w.replace('"', "")))
10. .collect();
11. let (last, rest) = words.split_last()?;
12. let mut q = rest.join(" ");
13. if !q.is_empty() {
14. q.push(' ');
15. }
16. q.push_str(last);
17. q.push('*');
18. Some(q)
19. }