pretext

用来做不依赖 DOM 的浏览器文本演示，借助 @chenglou/pretext 这类库，给出逐行断行、每行宽度、每个字形的位置和总高度等排版信息。适合需要精确文本测量或创意布局的 demo，比直接用 DOM 更可控、便于生成复杂文本效果。

# Pretext Creative Demos

## Overview

[`@chenglou/pretext`](https://github.com/chenglou/pretext) is a 15KB zero-dependency TypeScript library by Cheng Lou (React core, ReasonML, Midjourney) for **DOM-free multiline text measurement and layout**. It does one thing: given `(text, font, width)`, return the line breaks, per-line widths, per-grapheme positions, and total height — all via canvas measurement, no reflow.

That sounds like plumbing. It is not. Because it is fast and geometric, it is a **creative primitive**: you can reflow paragraphs around a moving sprite at 60fps, build games whose level geometry is made of real words, drive ASCII logos through prose, shatter text into particles w