In kakoune, many prompts or commands require a regex:

• search/,?
• selects
• splitS
• keep<a-k>
• not keep<a-K>
• …

The regex engine used by kakoune is a custom one, based on an ECMAScript standard. More infoin the documentation

This page lists common patterns you may need to better express your intent.

You can set user mappings to pre-fill prompts with the ones you need often. Here's an example withsearch and the\Q\E mentioned below:

map global user / ':exec /<ret>\Q\E<left><left>'

(<left><left> move the cursor back where you need it to be)

It is possible to make case insensitive regex by prefixing the expression with(?i).

Use theQuote flags, by surrounding your query with\Q and\E. Everything in between will be treated literally.

%s[^\x00-\x7F]<ret>d

• http://regexr.com/
• https://regex101.com/
• http://sed.js.org