Escape code in tables

[chriskrycho]

Fixes #89. Let me know if you’d like me to approach any part of this in a different way!

[chriskrycho]

I was experimenting with this in The Rust Programming Language and discovered that it’s ending up inserting escape characters in places we don’t want. Example:

|Example|
|-------|
| `>>`  |

This ends up being output as:

|Example|
|-------|
|`\>>`|

This in turn means that if there are multiple passes, e.g. if you have more than one mdBook preprocessor, it ends up repeatedly escaped. 😅

I am looking at the code, but I think the only think that actually needs to be escaped like this in inline code within a table is a pipe?

[chriskrycho]

I updated the implementation per my comment above; it now only escapes `|` specifically in tables—it intentionally does not escape other characters.

[Byron]

Thanks a lot for tackling this, good work!

There are some minor improvements that I think should be made before merging, centred around clarity and performance.

Thanks again.

[Byron]

Great, that does it, thanks again!

Unfortunately I forgot to mention that the Make State struct non-exhaustive commit should rather be named fix!: <the subject as before> to instruct the release tool that this is a breaking change.

I will do the rewrites myself before merging.

[Byron]

And here is the new release: https://github.com/Byron/pulldown-cmark-to-cmark/releases/tag/v19.0.0.

[chriskrycho]

Ah, excellent – thank you! Will double check commit message formatting going forward if/as I contribute here. Much obliged for the quick turnaround!