const regex = /(?<!\])<http(s)?:\/\/([^[\]]+?)>(?!\])/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(?<!\\])<http(s)?:\\\/\\\/([^[\\]]+?)>(?!\\])', 'g')
const str = `xxx
2. 使用\`Jetbrains Mono\`<https://github.com/JetBrains/JetBrainsMono>等宽字体进行代码高亮
2. 使用\`Jetbrains https://github.com/JetBrains/JetBrainsMono等宽字体进行代码高亮
代码是开放的,自取:<https://github.com/ttys3/hugo-theme-terminal/tree/ttys3>
xxxx`;
const subst = `http\$1://\$2`;
// The substituted value will be contained in the result variable
const result = str.replace(regex, subst);
console.log('Substitution result: ', result);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions