vim - VSCodeVim delete all occurrences containing a pattern

Vim - VSCodeVim delete all occurrences containing a pattern

To delete all occurrences containing a pattern using the VSCodeVim extension in Visual Studio Code, you can use the g command in combination with the :s (substitute) command. Here's how you can achieve this:

Deleting All Occurrences Matching a Pattern

  1. Enter Command Mode: Press : to enter command mode in Vim.

  2. Use :s Command with g Flag: Use the :s command with the g flag to substitute all occurrences matching a pattern with an empty string, effectively deleting them.

    Syntax: :%s/{pattern}//g

    • %: Indicates to apply the command to the entire file.
    • {pattern}: Replace this with your actual pattern.
    • //: Replace matches with nothing (i.e., delete them).
    • g: Apply globally across all matches on each line.

  3. Execute the Command: Type and execute the command by pressing Enter.

Example

Suppose you want to delete all lines containing the word "example":

:%s/example//g

This command will delete all occurrences of "example" throughout the entire file.

Additional Tips

  • Case Sensitivity: By default, Vim's substitute command is case-sensitive. To make it case-insensitive, add the i flag after the g: :%s/{pattern}//gi.

  • Confirm Each Substitute: You can append c at the end of the command (:%s/{pattern}//gc) to confirm each substitution interactively.

  • Visual Selection: Instead of using % to apply the command to the entire file, you can visually select a range of lines (Shift + V for line selection or Ctrl + V for block selection) and then run the :s command to delete patterns only within that selection.

Using VSCodeVim

Ensure that your VSCodeVim configuration allows for full Vim emulation. Commands like :%s should work as expected if your Vim keybindings are correctly mapped in Visual Studio Code.

By following these steps, you can effectively delete all occurrences containing a pattern using the VSCodeVim extension in Visual Studio Code. Adjust the {pattern} to match the specific text you want to delete, and use additional flags as needed to refine your delete operations.

Examples

  1. Deleting All Lines Containing a Pattern in Vim

    Description: This query involves deleting all lines in Vim that contain a specific pattern using a command that can be executed in normal mode.

    Code: Use the global command (:g) with the delete (d) action to delete lines matching a pattern:

    :g/pattern/d

    Replace pattern with the actual pattern you want to match.

  2. Deleting All Occurrences of a Pattern Across the File

    Description: This query focuses on deleting all occurrences of a pattern throughout the entire file in Vim.

    Code: Use the substitute command (:s) with the global flag (g) to replace occurrences of a pattern with an empty string:

    :%s/pattern//g

    Replace pattern with the actual pattern you want to delete.

  3. Deleting Lines Matching a Pattern and Saving Changes

    Description: This query involves deleting lines matching a pattern in Vim and saving the changes to the file.

    Code: Use the :global command to delete lines matching a pattern and save changes:

    :g/pattern/d | w

    Replace pattern with the actual pattern you want to match.

  4. Deleting All Occurrences of a Word Under the Cursor

    Description: This query addresses deleting all occurrences of the word under the cursor in Vim.

    Code: Use the * motion to search for the current word under the cursor and delete all occurrences:

    :%s/\<<C-r><C-w>\>//g

    Press Ctrl-r Ctrl-w to insert the word under the cursor in the search pattern.

  5. Deleting All Blank Lines in a File

    Description: This query focuses on deleting all blank lines (lines containing only whitespace) in a Vim file.

    Code: Use the :global command to delete blank lines:

    :g/^$/d

    This command deletes all lines that match the regular expression ^$, which denotes empty lines.

  6. Deleting Lines Not Matching a Pattern

    Description: This query involves deleting lines in Vim that do not match a specific pattern, useful for filtering content.

    Code: Use the :global command with the negate (!) flag to delete lines not matching a pattern:

    :g!/pattern/d

    Replace pattern with the actual pattern you want to exclude.

  7. Deleting Lines Matching Multiple Patterns

    Description: This query addresses deleting lines in Vim that match multiple patterns simultaneously.

    Code: Use the :global command with multiple patterns separated by \| (OR operator):

    :g/pattern1\|pattern2\|pattern3/d

    Replace pattern1, pattern2, and pattern3 with your desired patterns.

  8. Deleting All Occurrences of a Pattern in Visual Mode

    Description: This query involves deleting all occurrences of a pattern selected in visual mode in Vim.

    Code: Select the text in visual mode and then use the substitute command to delete the pattern:

    :'<,'>s/pattern//g

    Replace pattern with the actual pattern.

  9. Deleting Lines Matching a Pattern with Confirmation

    Description: This query involves deleting lines in Vim that match a pattern but with confirmation before each deletion.

    Code: Use the :global command with the confirm flag (c) to delete lines with confirmation:

    :g/pattern/d c

    Replace pattern with the actual pattern you want to match.

  10. Deleting All Comments Containing a Pattern

    Description: This query focuses on deleting all comments in a Vim file that contain a specific pattern.

    Code: Use a combination of :global and regular expressions to delete comment lines containing a pattern:

    :g/\/\/.*pattern/d

    Replace pattern with the actual pattern you want to find within comments.

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