Crate wfu 

Worksoup’s Formatting Utilities

[dependencies]
wfu = "0.0.3"

use wfu::*;
use std::ops::Deref;


#[derive(Debug, Clone, Copy, Default)]
struct UppercaseProxy;
impl FmtHandler<&str> for UppercaseProxy {
    #[inline]
    fn fmt(&self, data: &&str, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
        for c in data.chars() {
            write!(f, "{}", c.to_uppercase())?;
        }
        Ok(())
    }
}
impl FmtHandler<str> for UppercaseProxy {
    #[inline]
    fn fmt(&self, data: &str, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
        for c in data.chars() {
            write!(f, "{}", c.to_uppercase())?;
        }
        Ok(())
    }
}
impl FmtHandler<String> for UppercaseProxy {
    #[inline(always)]
    fn fmt(&self, data: &String, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
        <Self as FmtHandler<str>>::fmt(self, data, f)
    }
}

fn main() {
    let s = "hello world";

    let result = format!("{}", s.fmt_as::<UppercaseProxy>());
    assert_eq!(result, "HELLO WORLD");
}

Provided

内置

use wfu::*;
 
let s = "hello";
let display_result = format!("{}", s.fmt_as::<DisplayProxy>());
let debug_result = format!("{}", s.fmt_as::<DebugProxy>());

let vec = vec!["a", "b", "c"];
// Joined
let joined = format!("{}", vec.fmt_by(Joined(", ")));
assert_eq!(joined, "a, b, c");

// Repeat
let stars = format!("{}", "*".fmt_by(Repeat(5)));
assert_eq!(stars, "*****");

闭包

use wfu::*;

let value = 42;
let holder = value.fmt_with(&|v, f| write!(f, "Value: {} ({:#x})", v, v));
let result = format!("{}", holder);
assert_eq!(result, "Value: 42 (0x2a)");

Structs

BinaryProxy

CloneIterDebugMap

用于克隆后迭代并格式化为调试映射的格式化处理器

CloneIterJoined

用于连接迭代器元素的格式化处理器，适用于需克隆才能迭代的类型（如 Range）

DebugMap

用于将迭代器格式化为调试映射的格式化处理器

DebugProxy

DerefHolder

DisplayProxy

FmtFn

通用格式化函数包装器

FmtFnProxy

FmtWithWrapper

Joined

用于连接迭代器元素的格式化处理器

LowerExpProxy

LowerHexProxy

OctalProxy

PointerProxy

RefItemDebugMap

用于将元素为引用的迭代器格式化为调试映射的格式化处理器

Repeat

TargetHolder

UpperExpProxy

UpperHexProxy

Traits

FmtAs

FmtBy

FmtByHolder

FmtHandler

FmtWith

WithInner