要擴(kuò)展Sublime Text功能，可通過其內(nèi)置Python API編寫插件實(shí)現(xiàn)。插件為放置在Packages/User目錄中的.py文件，根據(jù)功能類型繼承TextCommand（操作文本）、WindowCommand（操作窗口）或EventListener（監(jiān)聽事件）。例如，TextCommand的run方法中可使用view.insert或view.replace修改文本內(nèi)容，並通過命令面板調(diào)用。處理事件時(shí)，如on_post_save、on_load等方法可用於響應(yīng)文件保存、打開等動(dòng)作。常見錯(cuò)誤包括未導(dǎo)入模塊或語法錯(cuò)誤，需檢查控制臺(tái)日誌。通過合理利用API和事件鉤子，可構(gòu)建如自動(dòng)格式化、語法檢查等高效工具。

If you want to extend Sublime Text's functionality, the built-in Python API gives you a powerful way to do it. The editor exposes a rich API that lets you interact with views, windows, settings, and more — all through plugins written in Python. You don't need to compile anything or use external tools; just write your code in the right place and reload.

Understanding the Plugin Structure

Sublime Text plugins are essentially .py files placed inside the Packages/User directory. When you create one, Sublime automatically loads and runs it when appropriate.

Each plugin class should inherit from sublime_plugin.TextCommand , sublime_plugin.WindowCommand , or sublime_plugin.EventListener , depending on what kind of action you're trying to perform.

• TextCommand – Operates on a text view (like modifying selected text)
• WindowCommand – Operates at the window level (like creating a new tab)
• EventListener – Listens for events like file saving or view activation

Here's a minimal example:

 import sublime
import sublime_plugin

class ExampleCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        self.view.insert(edit, 0, "Hello, World!")

Save this as example.py in your User package folder. Then open the command palette ( Ctrl Shift P ) and run “Example”.

Working With Views and Edits

Most plugins interact with the current view. The view object has methods for inserting, replacing, and selecting text. But any modification must be done using the edit object passed into the run method — otherwise, you'll get an error.

To insert text:

 self.view.insert(edit, position, "Some text")

To replace a region:

 region = sublime.Region(0, self.view.size())
self.view.replace(edit, region, "New content")

You can also get selections, iterate over them, and manipulate each individually:

 for sel in self.view.sel():
    # Do something with each selection

One common mistake is forgetting to import sublime or sublime_plugin . Also, if you make a syntax error in your plugin, Sublime won't load it and won't always give a clear message — so check the console ( Ctrl ~ ) for errors.

Hooking Into Events

Sometimes you want your plugin to react to actions rather than being triggered manually. That's where EventListener comes in.

For example, to run code every time a file is saved:

 import sublime_plugin

class OnSaveHandler(sublime_plugin.EventListener):
    def on_post_save(self, view):
        print("File saved:", view.file_name())

Other useful event hooks include:

• on_load : When a file is opened
• on_modified : When the buffer changes
• on_selection_modified : When the cursor or selection changes

These can be used to build auto-formatting tools, linters, or status updates.

Keep in mind: some events fire frequently (like on_modified ), so avoid heavy operations unless necessary.

That's how you start using Sublime Text's API to add custom behavior. Once you understand the basic structure and how to work with views and events, you can build complex tools tailored to your workflow. It's not magic — just standard Python with a few conventions.

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