reusable-fmt

为std::fmt宏提供可重用格式字符串

首次发布

此crate为std::fmt宏（如write!、print!、format!等）提供编译时定义的格式字符串支持。

安装

Cargo.toml:

[dependencies]
reusable-fmt = { git = https://github.com/rupansh/reusable-fmt }

src.rs:

use reusable_fmt::*;

示例用法

use reusable_fmt::*;

// This defines your format strings
fmt_reuse! {
    TEST1 = "This is a test! {}";
    TEST2 = "You can pass multiple format args! {} {}";
    TEST3 = r#"Raw Strings work too!! {}"#;
    TEST4 = "Named args {arg}";
    TEST5 = "Positional args {1} {0}";
    TEST6 = "Mixed {} {2} {1} {arg}";
}

fn main() {
	prntln!(TEST1, "Hello World"); // This is a test! Hello World
	let test = fmt!(TEST6, "Hello", "Test", "World", arg="Named"); // Mixed Hello World Test Named
	prntln!("{}", "WOW This works too!");
}

原因

• 使格式字符串更少冗余
• 无运行时开销！一切都是编译时。
• 无依赖（除非你计算构建依赖）

贡献

请随意请求和实现功能。我对宏不是很擅长，所以代码改进也是受欢迎的！

测试

应该在nightly上运行测试

cargo+nightly test

文档

文档应在nightly上编译

cargo+nightly doc