[alexisread]

Out of interest, is there an EBNF form for mermaid? I'm asking as I'm looking at notation alternatives for comments in code, for a language I'm designing.

I'd like to be able to write orgdown+mermaid+mathjax equivalent into comments in the language. The language itself needs to be quite formally specified hence the question.

I know markdown isn't actually suitable for this purpose as there are too many edge-case anomalies, I'm hoping mermaid is better specced around the edges.

[sidharthv]

Mermaid as a whole doesn't have a formally specified grammar. Individual diagrams have their grammar in a .jison file.

Flowchart: https://github.com/mermaid-js/mermaid/blob/develop/packages/...

A single grammar to support all the different use cases would be challenging. But we did have some plans to introduce guidelines to make different diagram syntaxes more consistent.

[jclermont]

I've had this need to render just part of a mermaid graph, and I thought of creating a parser to do it. Basically I'd like to render just the part of the graph that flows through a particular node.

Before I go off and write my own parser using this grammar, would it be practical to do this in mermaid's parser already?