import re

FTS_META_CHARS = r'''["'*()^+-]'''  # include ? if you see issues

def sanitize_query(q: str, *, allow_ops: bool = False) -> str:
    q = q.strip()
    if not q:
        return q
    if allow_ops:
        # escape stray double quotes inside, then wrap
        q = q.replace('"', '""')
        return f'"{q}"'
    # literal search: quote and escape special chars
    q = re.sub(r'"', '""', q)
    return f'"{q}"'