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POHow to toggle Vim's search highlight visibility without disabling it
 

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  1. POHow to toggle Vim's search highlight visibility without disabling it
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    <p>What I'd like is to map one key, e.g. <kbd>F4</kbd>, so that pressing <kbd>F4</kbd> will toggle the visibility of search highlights, <em>and</em> so that starting a new search enables visibility no matter the current visibility.</p> <p>What I've tried:</p> <ol> <li>Mapping <kbd>F4</kbd> to <code>:nohlsearch</code> temporarily disables highlight visibility without turning the <code>hlsearch</code> setting off, but it does not toggle visibility back again.</li> <li>Mapping <kbd>F4</kbd> to <code>:set hlsearch!</code> does toggle on/off, but I don't want to toggle the <code>hlsearch</code> setting off, just the visibility setting. If <code>hlsearch</code> is off then it doesn't come back automatically with a new search.</li> </ol> <p>There doesn't seem to be an opposite form of <code>:nohlsearch</code> and the command itself has problems being called from a function.</p> <p>I've found similiar questions, but they don't provide an answer.</p> <p><strong>Update:</strong><br> The first comment provides exactly what I was asking for, reproduced below: </p> <pre><code>let hlstate=0 nnoremap &lt;F4&gt; :if (hlstate == 0) \| nohlsearch \| else \| set hlsearch \| endif \| let hlstate=1-hlstate&lt;cr&gt; </code></pre> <p>(N.B. for anyone using this --- cramming the map onto one line instead of using a function is necessary since you can't effect a change on highlighting from inside a function.)</p> <p>Related question for slightly different functionality: <a href="https://stackoverflow.com/a/16750393/1176650">https://stackoverflow.com/a/16750393/1176650</a> </p>
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    1. COHere's the answer: Line 1: `" ctrl+c to toggle highlight.`, Line 2: `let hlstate=0`. Line 3: `nnoremap <c-c> :if (hlstate%2 == 0) \| nohlsearch \| else \| set hlsearch \| endif \| let hlstate=hlstate+1<cr>`. Now just press ctrl+c to toggle highlight.
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    2. COExcellent! If you repost the comment as an answer I'll accept it. As far as I can tell, the question isn't marked as a duplicate anymore.
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    3. COOkay, there it is. :)
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