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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#![allow(unknown_lints)]

#![warn(rust_2018_idioms)]

//! A crate with various sql/sqlcipher helpers.

mod conn_ext;

pub mod debug_tools;

mod each_chunk;

mod lazy;

mod maybe_cached;

pub mod open_database;

mod repeat;

pub use conn_ext::*;

pub use each_chunk::*;

pub use lazy::*;

pub use maybe_cached::*;

pub use repeat::*;

/// In PRAGMA foo='bar', `'bar'` must be a constant string (it cannot be a

/// bound parameter), so we need to escape manually. According to

/// <https://www.sqlite.org/faq.html>, the only character that must be escaped is

/// the single quote, which is escaped by placing two single quotes in a row.

pub fn escape_string_for_pragma(s: &str) -> String {

    s.replace('\'', "''")

#[cfg(test)]

mod test {

    use super::*;

    #[test]

    fn test_escape_string_for_pragma() {

        assert_eq!(escape_string_for_pragma("foobar"), "foobar");

        assert_eq!(escape_string_for_pragma("'foo'bar'"), "''foo''bar''");

        assert_eq!(escape_string_for_pragma("''"), "''''");