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Column editing of Sublime Text: A tool for efficient code operation
Home Development Tools sublime sublime column mode

sublime column mode

Apr 16, 2025 am 08:03 AM
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Column editing of Sublime Text: A tool for efficient code operation

Sublime Text is known for its lightweight, fast and powerful scalability, and one of the lesser-known but extremely efficient features is its column editing mode. It is not a simple multi-row selection, but a column operation in the true sense, which can greatly improve the efficiency of code writing and modification, especially when dealing with repetitive tasks.

Many developers may just stay with the mouse for simple multi-line selection, which is inefficient and error-prone when dealing with large-scale code modifications. Sublime Text's column editing provides finer and more powerful controls. You can quickly select the same content on the line where the cursor is located through the shortcut key (usually Ctrl Shift L or Cmd Shift L ) and then make unified modifications. For example, you need to change all variable names in a piece of code from user_name username , just select all user_name , and enter a new name. Sublime Text automatically replaces all selected instances. This is much faster than manually modifying it one by one, and also reduces the possibility of errors.

Going further, Sublime Text's column editing supports multiple column selection. You can use Ctrl Shift M (or Cmd Shift M ) to select columns in the same position on different rows to achieve more complex batch modifications. Imagine you have a set of functions, each of which needs to add a parameter. You can use multiple column selection to add new parameters in parentheses for each function definition, which is very useful when refactoring the code.

For example, suppose you need to add a debug parameter to each function in the following code:

 <code class="python">def function_a(x, y): # ... def function_b(a, b, c): # ... def function_c(p, q, r, s): # ...</code>

You can use multiple column selection, place the cursor separately in each function definition ) , then press Ctrl Shift M to select multiple columns, and add , debug at the end. The modified code is as follows:

 <code class="python">def function_a(x, y, debug): # ... def function_b(a, b, c, debug): # ... def function_c(p, q, r, s, debug): # ...</code>

Of course, Sublime Text's column editing is not perfect. For very complex code structures or conditions requiring conditional modifications, column editing may seem incompetent. At this time, you may need to use regular expressions or other code reconstruction tools. In addition, it may take some time for beginners to master its shortcuts and how to use it.

However, once you master the column editing function of Sublime Text, it will become an indispensable part of your code editing process, significantly improving your efficiency, freeing you from tedious repetitive work, and focusing on more important logical design and problem solving. It is not only suitable for Python, but also for various other programming languages, and is a powerful feature worth learning and using by all developers. Remember, practice makes perfect, and more practice is the key to mastering this skill.

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