This is a library to display simple errors in colorful, rustc-like way. It can't show multi-line errors or draw arrows between parts of code, but its interface is simple and easy to use. If you want something more complex, you probably should use annotate-snippets, which is used by rustc itself.
Entry point of this library is AnnotationList. You should create it, add some errors
and then use .show_stderr() or
.show_stdout()
with some Stylesheet to display the message.
```rust
let mut list = AnnotationList::new("hello.txt", "Hello world!");
list
.warning(4..7, "punctuation problem", "you probably forgot a comma")?
.info(0..0, "consider adding some translations", None)?;
asserteq!(list.tostring()?, r#"
warning: punctuation problem
--> hello.txt:1:5
|
1 | Hello world!
| ^^^ you probably forgot a comma
info: consider adding some translations --> hello.txt:1:1 | 1 | Hello world! | "#); ```