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//! # Quick start
//!
//! ```rust
//! use v_latexescape::escape;
//!
//! print!("{}", escape("# Header"));
//! ```
//!

macro_rules! build {
    ($($t:tt)*) => {
        v_escape::new!(
            LateXEscape,
            "35->\\# || 36->\\$ || 37->\\% || 38->\\& || 92->\\textbackslash{} || \
             94->\\textasciicircum{} || 95->\\_ || 123->\\{ || 125->\\} || 126->\\textasciitilde{}",
            $($t)*
        );
    };
}

/// Without simd optimizations
mod fallback {
    build!(simd = false);
}

cfg_if::cfg_if! {
    if #[cfg(all(v_latexescape_simd, v_latexescape_avx))] {
        build!(simd = true, avx = true);
    } else if #[cfg(all(v_latexescape_simd, v_latexescape_sse))] {
        build!(simd = true, avx = false);
    } else {
        pub use self::fallback::*;
    }
}

#[cfg(test)]
mod test {
    #[test]
    fn test_escape() {
        use super::LateXEscape;

        let empty = "";
        assert_eq!(LateXEscape::from(empty).to_string(), empty);

        assert_eq!(LateXEscape::from("").to_string(), "");
        assert_eq!(LateXEscape::from("#$%&").to_string(), "\\#\\$\\%\\&");
        assert_eq!(
            LateXEscape::from("bar_^").to_string(),
            "bar\\_\\textasciicircum{}"
        );
        assert_eq!(LateXEscape::from("{foo}").to_string(), "\\{foo\\}");
        assert_eq!(
            LateXEscape::from("~\\").to_string(),
            "\\textasciitilde{}\\textbackslash{}"
        );
        assert_eq!(
            LateXEscape::from("_% of do$llar an&d #HASHES {I} have in ~ \\ latex").to_string(),
            "\\_\\% of do\\$llar an\\&d \\#HASHES \\{I\\} have in \\textasciitilde{} \
             \\textbackslash{} latex"
        );
        assert_eq!(
            LateXEscape::from(
                "_% of do$llar an&d #HASHES {I} have in ~ \\ latex"
                    .repeat(10_000)
                    .as_ref()
            )
            .to_string(),
            "\\_\\% of do\\$llar an\\&d \\#HASHES \\{I\\} have in \\textasciitilde{} \
             \\textbackslash{} latex"
                .repeat(10_000)
        );
    }
}