Function groonga_sys::groonga::grn_expr_syntax_escape

pub unsafe extern "C" fn grn_expr_syntax_escape(
    ctx: *mut grn_ctx, 
    query: *const c_char, 
    query_size: c_int, 
    target_characters: *const c_char, 
    escape_character: c_char, 
    escaped_query: *mut grn_obj
) -> grn_rc