code.language-mermaid を変換するスクリプトを噛ませただけだけど。
graph TD;
A-->B;
A-->C;
B-->D;
C-->D;
gantt
dateFormat YYYY-MM-DD
title Adding GANTT diagram functionality to mermaid
section A section
Completed task: done, des1, 2014-01-06, 2014-01-08
Active task: active, des2, 2014-01-09, 3d
Future task: des3, after des2, 5d
Future task2: des4, after des3, 5d
section Critical tasks
Completed task in the critical line :crit, done, 2014-01-06, 24h
Implement parser and jison :crit, done, after des1, 2d
Create tests for parser :crit, active, 3d
Future task in critical line :crit, 5d
Create tests for renderer :2d
Add to mermaid :1d
sequenceDiagram
participant Alice
participant Bob
Alice->John: Hello John, how are you?
loop Healthcheck
John->John: Fight against hypochondria
end
Note right of John: Rational thoughts prevail...
John-->Alice: Great!
John->Bob: How about you?
Bob-->John: Jolly good!