npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

epub-parser-web

v1.2.0

Published

EpubParserWeb 是一个基于 Rust EPUB 解析库构建的 WebAssembly 库,用于浏览器端解析 EPUB 文件。

Readme

EpubParserWeb

EpubParserWeb 是一个基于 Rust EPUB 解析库构建的 WebAssembly 库,用于浏览器端解析 EPUB 文件。

功能特性

  • 解析 EPUB 文件
  • 获取书籍元数据(书名、作者、语言、描述)
  • 获取封面图片的 Base64 编码
  • 获取目录 (TOC) 并转换为 JSON 结构
  • 获取书脊 (Spine) 内容
  • 获取 EPUB 内部资源,并支持 Base64 编码
  • 将资源 URI 转换为章节索引

使用示例

安装 npm 包

npm install epub-parser-web

初始化 EpubParser

import init, { EpubParser } from 'epub-parser-web'

async function loadEpub(file) {
  await init()
  const arrayBuffer = await file.arrayBuffer()
  const parser = new EpubParser(new Uint8Array(arrayBuffer))

  console.log('Title:', parser.title)
  console.log('Author:', parser.author)
  console.log('Language:', parser.language)
  console.log('Description:', parser.description)
  console.log('Cover Image Base64:', parser.cover)
  console.log('TOC:', parser.toc)
  console.log('Spine:', parser.spine)
  console.log('Unique Identifier:', parser.unique_identifier)
}

通过 ID 获取 EPUB 资源

const resourceBase64 = parser.get_resource_base64('resource_id')
if (resourceBase64) {
  console.log('Resource Base64:', resourceBase64)
}

通过路径获取 EPUB 资源

const resourceBase64 = parser.get_resource_base64_by_path('path')
if (resourceBase64) {
  console.log('Resource Base64:', resourceBase64)
}

通过 ID 获取资源字符串

const resourceStr = parser.get_resource_str('resource_id')
if (resourceStr) {
  console.log('Resource String:', resourceStr)
}

通过路径获取资源字符串

const resourceStr = parser.get_resource_str_by_path('path')
if (resourceStr) {
  console.log('Resource String:', resourceStr)
}

资源 URI 转章节索引

const chapterIndex = parser.resource_uri_to_chapter('path/to/resource.xhtml')
console.log('Chapter Index:', chapterIndex)

获取章节内容

const chapterContent = parser.get_chapter_with_epub_uris('resource_id')
if (chapterContent) {
  console.log('Chapter Content:', chapterContent)
}

注入 CSS

parser.add_extra_css(`body { background-color: black; color: white }`)

依赖

  • epub (EPUB 解析库)
  • wasm-bindgen (Rust to WASM 绑定)
  • serde & serde_json (用于 JSON 序列化)
  • base64 (Base64 编码支持)
  • md5 (用于计算唯一标识符)

许可

本项目基于 MIT 许可协议。