Simon Willison 用 Claude Fable 5 将 Go 版 mermaid-ascii 编译为 WebAssembly，支持彩色输出

在基于 Grok Build 的 Rust 代码（https://simonwillison.net/2026/Jul/16/grok-mermaid/）构建了 Mermaid 转 ASCII 的工具之后，我了解到有一个更早、更功能齐全的 Go 库，叫做 AlexanderGrooff/mermaid-ascii（https://github.com/AlexanderGrooff/mermaid-ascii），它实现了类似的模式，于是我让 Claude Fable 5 也将这个库编译成 WebAssembly，以便我可以对比两者。

这个库支持颜色！

Test:::good / Test --> Deploy:::warn / Deploy --> Rollback:::bad / classDef good color:#3fb950 / classDef warn color:#e3b341 / classDef bad color:#ff7b72。一个控制行显示未选中的“仅 ASCII”复选框，“X 填充: 5”，“Y 填充: 5”，“框填充: 1”，以及按钮“复制为文本”和“复制此图的链接”。在底部黑色背景上显示了从左到右渲染的流程图，包含四个连接的方框：“Build”（绿色文字）、“Test”（绿色文字）、“Deploy”（黄色文字）、“Rollback”（红色文字），每个方框之间用箭头相连。

这是 Simon Willison 在 2026 年 7 月 16 日发布的一条动态：/2026/Jul/16/。

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After building the Mermaid to ASCII tool based on Grok Build's Rust code：https://simonwillison.net/2026/Jul/16/grok-mermaid/ I learned that there's an older, more fully-featured Go library called AlexanderGrooff/mermaid-ascii：https://github.com/AlexanderGrooff/mermaid-ascii that implements a similar pattern, so I had Claude Fable 5 compile that one to WebAssembly as well so I could compare the two.

This one includes support for colors!

Test:::good / Test --> Deploy:::warn / Deploy --> Rollback:::bad / classDef good color:#3fb950 / classDef warn color:#e3b341 / classDef bad color:#ff7b72". A control row shows an unchecked "ASCII only" checkbox, "Padding X: 5", "Padding Y: 5", "Box padding: 1", and buttons "Copy as text" and "Copy link to this diagram". At the bottom on a black background is the rendered left-to-right flowchart with four connected boxes: "Build" (green text), "Test" (green text), "Deploy" (yellow text), "Rollback" (red text), each linked by arrows." src="https://static.simonwillison.net/static/2026/mermaid-ascii.webp" />

This is a beat by Simon Willison, posted on 16th July 2026：/2026/Jul/16/.

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