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markdown to mobi #14

Closed simpleowen closed 5 years ago

simpleowen commented 5 years ago

背景

近日想复习一下 提问的智慧.

在网上找到一个 mobi 版本, 但是 kindle 阅读效果不理想. 于是想着尝试将仓库中的 md 文档转换成 mobi 后发送到 kindle 阅读, 看看效果是否可行.

simpleowen commented 5 years ago

资料搜集

simpleowen commented 5 years ago

探索

mobi 是 亚马逊 kindle 的专有阅读格式.

亚马逊提供了一个 工具 支持从其他格式 (HTML, XHTML and EPUB) 来创建 mobi 文档, 但是该工具目前支持的格式并不包括 md.

Highlights of KindleGen functionality

    Support for all KF8 functionality
    Generates a single file supporting both KF8 and Mobi format
    Support for multiple source formats including HTML, XHTML and EPUB

System Requirements

    Windows XP, Vista or 7
    Intel Mac OSX 10.5 or later
    Linux 2.6 i386

所以要想使用 KindleGen 来将 md 转换成 mobi 格式, 必须先将 md 转换成 HTML, XHTML and EPUB 中的一种中间格式, 再将中间格式转换 mobi.

simpleowen commented 5 years ago

md to html

html 是非常常见的网页格式, 从 md to html 开始.

md to html 的工具非常多, 有在线的, 离线的, GUI 的, CLI 的.

比如, 在线服务 Dillinger 能将 md 转换为 html.

将 md 文档内容导入, 或拷贝到左边 markdown 编辑器中, 在右上角有 export as 可选 html 格式导出. 如下图所示:

image

simpleowen commented 5 years ago

hmtl to mobi

➜  kindlegen

*************************************************************
 Amazon kindlegen(MAC OSX) V2.9 build 1028-0897292
 A command line e-book compiler
 Copyright Amazon.com and its Affiliates 2014
*************************************************************

Usage : kindlegen [filename.opf/.htm/.html/.epub/.zip or directory] [-c0 or -c1 or c2] [-verbose] [-western] [-o <file name>]
Note:
   zip formats are supported for XMDF and FB2 sources
   directory formats are supported for XMDF sources
Options:
   -c0: no compression
   -c1: standard DOC compression
   -c2: Kindle huffdic compression
   -o <file name>: Specifies the output file name. Output file will be created in the same directory as that of input file. <file name> should not contain directory path.
   -verbose: provides more information during ebook conversion
   -western: force build of Windows-1252 book
   -releasenotes: display release notes
   -gif: images are converted to GIF format (no JPEG in the book)
   -locale <locale option> : To display messages in selected language
      en: English
      de: German
      fr: French
      it: Italian
      es: Spanish
      zh: Chinese
      ja: Japanese
      pt: Portuguese
      ru: Russian
      nl: Dutch

使用 kindlegen 命令后确实能将 html 转换成 mobi, 但用 kindle 打开后, 中文显示乱码.

html 文件字符集为 utf-8.

<head>
    <meta charset="utf-8">
    <title>提问的智慧.md</title>
    <style type="text/css">
     body{
              font-family: arial, sans-serif;
     }
    </style>
</head>

依然乱码.

image

参考连接:

simpleowen commented 5 years ago

md to epub

将 md 转换成 epub, 使用 Pandoc 工具.

pandoc -o howtoask.epub howtoask.md

Screen Shot 2019-08-31 at 12 05 16

epub to mobi

定位到相应目录下, 执行

kindlegen howtoask.epub

➜  kindlegen howtoask.epub

*************************************************************
 Amazon kindlegen(MAC OSX) V2.9 build 1028-0897292
 A command line e-book compiler
 Copyright Amazon.com and its Affiliates 2014
*************************************************************

➜  echo $?
2

没能成功转换 epub -> mobi

simpleowen commented 5 years ago

暂时先关闭此 issue, 后续跟踪.