Files
lk/writing/vim/format_md.md

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Markdown

---
title: Reformat a Markdown Table
tags:
- writing
- vim
- markdown
requires:
- writing/vim.md
---
This markdown table is badly messed up:
```markdown
| File | Category |
|:------|:---------|
| calendar.md | tex|
| tex_packages.md | tex|
| completion.md | vim|
| csv_to_md.md | vim|
| format_md.md | vim|
```
Highight from the top with `V6j`, then run `column` to fix the output:
```vim
:!column -ts'|' -o '|'
```
It displays like this:
```vim
:'<,'>!column -ts'|' -o '|'
```
```markdown
| File | Category |
|:------ |:---------|
| calendar.md | tex |
| tex_packages.md | tex |
| completion.md | vim |
| csv_to_md.md | vim |
| format_md.md | vim |
```
That's better, but the header is broken.
Fix is by replacing spaces with dashes.
```vim
:s/ /-/g
```
The lines have too much whitespace.
You can fix this with the 'truncate' command, to squeeze repeating spaces or dashes.
```vim
tr -s ' -' |column -ts '|' -o '|'
```
```markdown
| File | Category |
|:----------------|:---------|
| calendar.md | tex |
| tex_packages.md | tex |
| completion.md | vim |
| csv_to_md.md | vim |
| format_md.md | vim |
```
# Keyboard Shortcut
Put this in your `~/.vimrc` to map 'Control + t' to reformat markdown tables in visual mode.
```vim
vmap <C-t> :!tr -s ' -' \|column -ts '\|' -o '\|'<Enter>j:s/ /-/g<Enter>k
```