Abbreviation matching

[MihaZupan]

I've been looking at the AbbreviationParser and came accross this discrepancy between different versions.

As a side-note, markdig currently doesn't match at all in cases like this due to how the TextMatchHelper works internally.

I'd be happy to fix this, just wanted to hear your thoughts on the commonmark issue first.

[xoofx]

You can go ahead with what you think is more relevant/safe/consistent. The TextMatchHelper is one of the helper classes that would definitely need to be revisited 👍

[MihaZupan]

I've written a version of TextMatchHelper as a CompactPrefixTree.
Would you prefer I port it to markdig and add it as a helper class or add a NuGet reference (cross targets all platforms Markdig does)?

[xoofx]

Would you prefer I port it to markdig and add it as a helper class or add a NuGet reference (cross targets all platforms Markdig does)?

Yeah, you can port it, I would like to avoid any dependencies.