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malachite_base/bools/
typst.rs

1// Copyright © 2026 Mikhail Hogrefe
2//
3// This file is part of Malachite.
4//
5// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
6// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
7// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.
8
9use crate::strings::typst::ToTypst;
10use core::fmt::{Formatter, Result};
11
12impl ToTypst for bool {
13    /// Writes a [`bool`] as a Typst math-mode fragment.
14    ///
15    /// `true` becomes `"T"` and `false` becomes `"F"`. The quotation marks make them a string,
16    /// which Typst typesets upright, rather than letting them be typeset as italic variables.
17    ///
18    /// # Worst-case complexity
19    /// Constant time and additional memory.
20    ///
21    /// # Examples
22    /// ```
23    /// use malachite_base::strings::typst::ToTypst;
24    ///
25    /// assert_eq!(true.to_typst_string(), r#""T""#);
26    /// assert_eq!(false.to_typst_string(), r#""F""#);
27    /// ```
28    ///
29    /// | value   | fragment |
30    /// |---------|----------|
31    /// | `true`  | `"T"`    |
32    /// | `false` | `"F"`    |
33    #[inline]
34    fn fmt_typst(&self, f: &mut Formatter) -> Result {
35        f.write_str(if *self { "\"T\"" } else { "\"F\"" })
36    }
37}