Crate dedent

A procedural macro for automatically removing common leading whitespace from multi-line strings.

Usage

use dedent::dedent;

let formatted = dedent!(r#"
    Hello
      World
        !"#);

assert_eq!(formatted, "Hello\n  World\n    !");

How it works

The macro:

1. Splits the input string into lines
2. Finds the minimum indentation level among non-empty lines
3. Removes that amount of whitespace from the start of each non-empty line
4. Removes leading and trailing empty lines

Macros

dedent

Removes common leading whitespace from a multi-line string literal.