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----
-title: "Vim Tips 2015-05-07"
-description: "Vim Tips: Visual Mode and Macros"
-tags:
- - "Vim"
- - "Tips and Tricks"
- - "Editors"
-date: "2015-05-07"
-categories:
- - "Development"
- - "Editors"
- - "Tools"
-slug: "vim-tips-2015-05-7"
----
-
-Many Vim users may have, accidentally or not, discovered the dot (`.`) command
-in Vim. It's a main stay for a lot of Vim users and is clearly one of those
-actions that should be in more editors. Except when it is the wrong action for
-the job.
-
-More often than not, the visual selection mode and one-off macros are a better
-choice.
-
-## Visual Mode ##
-
-I won't go into all of the cool things that can be accomplished with Vim's
-visual mode, but I will showcase a few examples where the visual editor is
-clearly a better choice than the dot (`.`).
-
-Visual mode offers, in essence, a multi-line cursor for which you can do a lot
-of changes, quickly.
-
-### Visual Mode Basics ###
-
-To enter visual mode, it is as simple as pressing `^v` or `ctrl-v`. Next you
-will want to select what you want to change with your typical movement commands
-(`h`, `j`, `k`, `l`, and of course `w`, `e` and all the rest). Finally, you
-finish with the action: `I` if you want to insert before the selection, `A` if
-you want to append after the selection, `C` if you want to change the
-selection, and `d`, `D`, `x` if you want to remove the selection, just to name
-a few.
-
-### Some Examples ###
-
-For (a bad) example, if you need to comment out a contiguous set of lines, you
-can easily accomplish this with the visual mode.
-
-{{< video "/media/videos/comment.ogg" "video/ogg" 600 400 >}}
-
-A related example to prefixing is indentation changes, I often use the visual
-mode to fix code indentation when changing block-level indentation or when
-copying code into a markdown file.
-
-{{< video "/media/videos/indent.ogg" "video/ogg" 600 400 >}}
-
-As another example, if you need to change a single word in multiple columns,
-visual mode will make easy work of this (especially when the columns are
-aligned, if not see macros below or [substitution ranges][2] from the previous
-tip).
-
-{{< video "/media/videos/cw.ogg" "video/ogg" 600 400 >}}
-
-For more information on Visual Mode, you can check Vim's [visual][1] help
-document.
-
-## Macros ##
-
-For when visual mode may not be enough or when the change is repetitive in
-operations but not in columns or what have you, it's time to bust out the
-macros. Vim macros are easily available for use you can use all the registers
-to record and store each macro.
-
-### Macro Basics ###
-
-To record a macro, it's as simple as `q<register-label><commands>q`. That is,
-press `q`, select a register (a-z1-0), enter your commands as if you were using
-Vim normally, and finally `q` again to finish. Once your macro is recorded, you
-can use it with `@<register-label>`. And, like most Vim commands, you can
-attach a repetition to it: `<n>@<register-label>` where `<n>` is the number of
-times to repeat the command.
-
-You can also replay the last macro with `@@`.
-
-### Some Examples ###
-
-As a simplistic example, we can use a macro to convert it into, say, JSON (this
-example is clearly taken from the [Vim Wikia][3]).
-
-Let's say we have the following data:
-
- one first example
- two second example
- three third example
- four fourth example
-
-And we want to change it to the following:
-
- data = {
- 'one': 'first example',
- 'two': 'second example',
- 'three': 'third example',
- 'four': 'fourth example',
- }
-
-We can do this by performing the following:
-
-First, we want to start recording our macro. While the cursor is under the 'o'
-of 'one', we will press `qd` to record our macro to the `d` register.
-
-Next, we will want to change the tabbing by performing a substitution:
-
- :s/\s\+/': '
-
-Then, we will insert our first tick with:
-
- I'
-
-And append the last tick and comma with:
-
- A',
-
-Before we finish recording, one of the more important operations of making
-macros repeatable is moving the cursor to the next line and putting it into the
-correct position for the next execution. Therefore, move the cursor the begging
-of the line and move down one line:
-
- 0j
-
-Finally, press `q` to finish recording.
-
-We should now be able to press `3@d` and watch as the rest of the lines change.
-
-To finish up the example, we'll manually enter `data = {` and the tailing `}`.
-
-{{< video "/media/videos/macros.ogg" "video/ogg" 600 400 >}}
-
-[1]: http://vimdoc.sourceforge.net/htmldoc/visual.html
-
-[2]: https://kennyballou.com/blog/2015/03/vim-tips-2015-03-17/
-
-[3]: http://vim.wikia.com/wiki/Macros