Block diagrams (Mermaid fence)

What it is

The same diagram as Block diagrams; only how you write it differs. This page uses a ```mermaid fence and writes Mermaid source directly.

When to use it

The source goes to GitHub and you want the diagram to render there — Pamphlet's own syntax shows up as plain text on GitHub
You already know Mermaid and would rather not learn a second thing
You need something the own syntax cannot express (the Traps section below says what)

Otherwise use the own syntax: the field names are fixed, and a mistake is reported on the line it is on.

How to write it

```mermaid
block-beta
  columns 3
  source["plan.md"] space output["plan.html"]
  parse render assemble
```

What comes out

Drawn to SVG at compile time and inlined into the output, so the reader downloads no drawing library and makes no network request. Colours follow the theme; scroll to zoom, drag to pan, double-click to reset.

Traps

columns 3 sets the row width; space leaves an empty cell
It draws no arrows and implies no order; for order use a flowchart
Still beta syntax, so it may change

#Block diagrams (Mermaid fence)

#What it is

#When to use it

#How to write it