qwik-site/libs/codeHighlighter.js

import hljs from 'highlight.js'

export function highlight(code, lang) {
    // Check if hljs recognises the language, else assume 'plaintext'.
    const language = hljs.getLanguage(lang) ? lang : 'plaintext'

    // Highlight it with the corresponding language.
    return hljs.highlight(
        // Switch out bullet points (•) to spaces (for proper indentation).
        code.replace(/•/g, "  "), { language })
            // Replace newlines with <br> tags.
            .value.replace(/\n/g, "<br>")
            // Replace spaces with '&nbsp;' to forcefully render them.
            .replace(/  /g, "&nbsp;"
    )
}