Module search 

Functions

make_or_fallback

Build an OR fallback query from an already-sanitized AND query. Returns None for single-term queries (OR fallback has no effect).

sanitize_fts_query

Sanitize user input for FTS5 queries. Whitelist approach: only alphanumeric, spaces, hyphens, underscores, dots. All FTS5 operators (NEAR, AND, OR, NOT, *, ^, column:) are stripped.