Mermaid: Rounded corners shape should have completely round end-caps in mermaid flowchart.

[dotancohen]

Flowchart symbols convention specifies that flowchart Terminators (start and stop points) should have completely round end-caps. Mermaid should support such a shape.

I propose either modifying the (foo) shape to have a completely round end-cap (stroke-linecap:round) as there is no use for slightly-rounded corners in the Flowchart symbols convention, or perhaps to have a new shape ([foo]), (_foo_), or [(foo)] that has this feature.

Flowchart symbols reference:
https://www.rff.com/flowchart_shapes.php
https://www.smartdraw.com/flowchart/flowchart-symbols.htm
https://www.lucidchart.com/pages/flowchart-symbols-meaning-explained

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[dotancohen]

A bit of activity for the stalebot.

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[dotancohen]

A bit of activity for the stalebot.

[knsv]

I approve. This should not be too difficult and is good first issue. However, think thoughly about a intuitive syntax. The proposed syntax needs some work:

([foo]), (_foo_), or [(foo)]

In PlantUML state diagrams en markers are denote with [*]. Maybe (* Text *)?

[dotancohen]

In PlantUML state diagrams en markers are denote with [*]. Maybe (* Text *)?

Sure, that looks fine.

[GDFaber]

Using (* Text *) would cause a minor change in behaviour though, because it can be used to produce the node text "* Text *" (which works in the live editor). Should we stick to it anyway or rather use another syntax?

[dotancohen]

@GDFaber You are correct. I just checked the live editor and ([ Foo ]) does not have this problem. It also looks like the element produced, so is very fitting for Mermaid's intuitive behaviour.

Use ([ Foo ]) syntax.

[GDFaber]

This seems to be a good opportunity to shake hands with the mermaid flowcharts code, so I'd like to give this one a try.

[klemmchr]

Great, looking forward for your PR.

[knsv]

@GDFaber How are things going? Let me know if you are stuck. I would be glad to assist either by chat or call.

[GDFaber]

Hi @ksnv, I had no time to start with this until now, but I'll get to it tomorrow night and give it a try. I will let you know how it gets along. Thanks for offering, I will surely let you know via Slack if I run into problems.

[GDFaber]

That was fun :) I think it works properly, but I'll fill in the tests first and hand in my PR tomorrow night.

[GDFaber]

Done, my PR is at #1130.