Calibre 2.43 发布，此版本更新内容如下： 新特性 Edit Book: Add a 'Smart Comment' tool to easily comment/uncomment text Press Ctrl+` to trigger the tool, or add the tool to your toolbar via Preferences->Toolbar->Tools for all editors. It will either insert comments around the selected text or uncomment an existing comment if the cursor is inside one. Tag mapper: Add new rule types to upper-case, lower-case or capitalize tags Markdown input: Allow the 'extra' convenience extension as a shortcut for enabling multiple other extensions. Also add the Attribute List and Admonition extensions. Finally, update the markdown library used by calibre Closes tickets: 1512461 Bug 修复 Amazon metadata download: Fix for website change at amazon.com that prevented ratings from being downloaded. Closes tickets: 1513318 Tag mapper: Prevent cycles in the replacement rules from causing the tag mapper to hang Closes tickets: 1513330 Do not fail on windows systems where the system function to get the users home folder fails E-book viewer: Set the foreground color as well as the background color for the reference mode popup. Makes it legible even when the user specifies a different color theme for the viewer. 新增新闻源 La Politica Online by Darko Miletic 下载：http://calibre-ebook.com/download Calibre是电子书管理软件，支持Amazon、Apple、Bookeen、Ectaco、Endless Ideas、Google/HTC、Hanlin Song设备及格式，功能十分强大。 Calibre 2.43 发布，电子书管理软件下载地址
