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<h1 class="heading">n</h1>
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<div class="post">
<div class="date">31/07 2019</div>
<a href="#bash_harder_with_vim.md" class="post-link" onClick="showPost('bash_harder_with_vim.md')">Bash Harder With Vim</a>
<div id="bash_harder_with_vim.md" class="post-text" style="display: block">
<p>Bash is tricky, dont let your editor get in your way. Here’s a couple of neat
addtions you could make to your <code>vimrc</code> for a better shell programming
experience.</p>
<p><strong>Man pages inside vim</strong>. Source this script to get started: </p>
<pre><code>runtime ftplugin/man.vim
</code></pre>
<p>Now, you can open manpages inside vim with <code>:Man</code>! It adds nicer syntax highlighting
and the ability to jump around with <code>Ctrl-]</code> and <code>Ctrl-T</code>.</p>
<p>By default, the manpage is opened in a horizontal split, I prefer using a new tab:</p>
<pre><code>let g:ft_man_open_mode = 'tab'
</code></pre>
<p><strong>Scratchpad to test your commands</strong>. I often test my <code>sed</code> substitutions, here is
a sample from the script used to generate this site: </p>
<pre><code># a substitution to convert snake_case to Title Case With Spaces
echo "$1" | sed -E -e "s/\..+$//g" -e "s/_(.)/ \u\1/g" -e "s/^(.)/\u\1/g"
</code></pre>
<p>Instead of dropping into a new shell, just test it out directly from vim!</p>
<ul>
<li><p>Yank the line into a register:</p>
<pre><code>yy
</code></pre></li>
<li><p>Paste it into the command-line window:</p>
<pre><code>q:p
</code></pre></li>
<li><p>Make edits as required:</p>
<pre><code>syntax off # previously run commands
edit index.html # in a buffer!
w | so %
!echo "new_post.md" | sed -E -e "s/\..+$//g" --snip--
^--- note the use of '!'
</code></pre></li>
<li><p>Hit enter with the cursor on the line containing your command!</p>
<pre><code>$ vim
New Post # output
Press ENTER or type command to continue
</code></pre></li>
</ul>
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<div class="post">
<div class="date">30/07 2019</div>
<a href="#hold_position!.md" class="post-link" onClick="showPost('hold_position!.md')">Hold Position!</a>
<div id="hold_position!.md" class="post-text" style="display: none">
<p>Often times, when I run a vim command that makes “big” changes to a file (a
macro or a <code>:vimgrep</code> command) I lose my original position and feel disoriented.</p>
<p><em>Save position with <code>winsaveview()</code>!</em></p>
<p>The <code>winsaveview()</code> command returns a <code>Dictionary</code> that contains information
about the view of the current window. This includes the cursor line number,
cursor coloumn, the top most line in the window and a couple of other values,
none of which concern us.</p>
<p>Before running our command (one that jumps around the buffer, a lot), we save
our view, and restore it once its done, with <code>winrestview</code>.</p>
<pre><code>let view = winsaveview()
s/\s\+$//gc " find and (confirm) replace trailing blanks
winrestview(view) " restore our original view!
</code></pre>
<p>It might seem a little overkill in the above example, just use “ (double
backticks) instead, but it comes in handy when you run your file through
heavier filtering.</p>
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<div class="post">
<div class="date">30/07 2019</div>
<a href="#get_better_at_yanking_and_putting_in_vim.md" class="post-link" onClick="showPost('get_better_at_yanking_and_putting_in_vim.md')">Get Better At Yanking And Putting In Vim</a>
<div id="get_better_at_yanking_and_putting_in_vim.md" class="post-text" style="display: none">
<ol>
<li><p>reselecting previously selected text (i use this to fix botched selections):</p>
<pre><code>gv " :h gv for more
" you can use `o` in visual mode to go to the `Other` end of the selection
" use a motion to fix the selection
</code></pre></li>
<li><p>reselecting previously yanked text:</p>
<pre><code>`[v`]
`[ " marks the beginning of the previously yanked text :h `[
`] " marks the end :h `]
v " visual select everything in between
nnoremap gb `[v`] " "a quick map to perform the above
</code></pre></li>
<li><p>pasting and indenting text (in one go):</p>
<pre><code>]p " put (p) and adjust indent to current line
]P " put the text before the cursor (P) and adjust indent to current line
</code></pre></li>
</ol>
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