Eric Traut 2426ed7684 Support stadium nodes in Mermaid terminal diagrams (#46856) ...

## Why

Flowcharts containing stadium nodes such as `A([Start])` currently fall back to source text instead of rendering in the TUI.

## What changed

Parse stadium declarations and render them with rounded box corners in every supported flowchart direction. Track node shapes explicitly so repeated declarations must agree on both label and shape. Document the supported `([label])` syntax.

## Testing

Add parser and snapshot coverage for repeated references, conflicting declarations, malformed syntax, Unicode labels, mixed shapes, and width limits across all four directions. Add a TUI snapshot for a stadium flowchart and verify source fallback when the diagram is too wide or malformed.

GitOrigin-RevId: 5ebd8babfd25ab4429b3e6c408cb7be8d7f1bb8e

2026-09-20 17:36:48 +00:00

..

snapshots

Support stadium nodes in Mermaid terminal diagrams (#46856)

2026-09-20 17:36:48 +00:00

draw.rs

Support stadium nodes in Mermaid terminal diagrams (#46856)

2026-09-20 17:36:48 +00:00

families_tests.rs

Add a bounded Mermaid text renderer (#45817)

2026-09-16 00:38:34 +00:00

lib.rs

Support stadium nodes in Mermaid terminal diagrams (#46856)

2026-09-20 17:36:48 +00:00

output.rs

Add a bounded Mermaid text renderer (#45817)

2026-09-16 00:38:34 +00:00

parse.rs

Support stadium nodes in Mermaid terminal diagrams (#46856)

2026-09-20 17:36:48 +00:00

relations.rs

Add a bounded Mermaid text renderer (#45817)

2026-09-16 00:38:34 +00:00

sequence.rs

Add a bounded Mermaid text renderer (#45817)

2026-09-16 00:38:34 +00:00

state.rs

Add a bounded Mermaid text renderer (#45817)

2026-09-16 00:38:34 +00:00

tests.rs

Support stadium nodes in Mermaid terminal diagrams (#46856)

2026-09-20 17:36:48 +00:00