Source to source formatting issue

[luveti]

I'm experiencing a weird escaping issue and a underscore to dash conversion when parsing then formatting a document:

fn main() -> Result<()> {
    let before = r#"## 1. Foo
**Test**: __________________________
__________________________
"#;
    let options = comrak::Options::default();
    let arena = comrak::Arena::new();
    let root = comrak::parse_document(&arena, &before, &options);
    let mut out = Vec::new();
    comrak::format_commonmark(root, &options, &mut out)?;
    let after = std::str::from_utf8(&out)?;
    println!("Before:");
    println!("{before}");
    println!("After:");
    println!("{after}");
    Ok(())
}

Before:

## 1. Foo
**Test**: __________________________
__________________________

After:

## 1\. Foo

**Test**: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

-----

Is there an option that would disable the addition of these backslashes?

This is happening on version 0.33.

[kivikakk]

There isn't, currently; see #509 for a similar issue opened on this topic recently, and #510 for why it becomes difficult.

[luveti]

Ahh, thanks for clearing that up!

My use case is replacing the content of specific nodes in a parsed document then serializing it back to disk.

I suppose an alternative is to use Ast.sourcepos to replace content in the unparsed source.

[kivikakk]

I understand! I use it for the same function in a few places, but for my part just accept there'll be some "needlessly" escaped things.

Sourcepos is a viable option, but please be aware there are some bugs, especially with inline elements; see the sourcepos issue tag for more details.

I'm having some ideas brewing for a (kind of) quick and (kind of) easy way to reduce the backslashes without running into the above issues; I'll post back here in a day or two if I get anywhere with it!

[charlottia]

I've tried putting together an option for this at #523 — if you're still interested, could you give that branch a try and let me know if it works OK?