Voici comment je fais pour rajouter automatiquement une balise autour des emojis présents dans mes articles :

function niceEmoji(text) {
  const emojiRegex = /(\p{ExtPict}(\u200d\p{ExtPict}|\p{EMod})*)/gu;
  return text.replace(emojiRegex, '<span class="u-emoji">$1</span>');
}

A protip by nicolaslazartekaqui about vim.

TL;DR

To convert all text to lowercase and to uppercase in vim do:

ggVGu
ggVGU

Function in search/replace, do this to lowercase and to uppercase (example):

:%s/[A-Z]/\L&/g
:%s/[A-Z]/\U&/g

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The aim of this page is to give as many people as possible the opportunity to develop and use regular expressions. Hopefully nobody has to call substring() anymore.

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Regular expression tester with syntax highlighting…

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The images generated by Regexper are commonly referred to as "Railroad Diagrams". These diagram are a straight-forward way to illustrate what can sometimes become very complicated processing in a regular expression, with nested looping and optional elements.

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