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| 1 | +let Prism; |
| 2 | + |
| 3 | +async function loadPrism() { |
| 4 | + if (Prism) { |
| 5 | + return; |
| 6 | + } |
| 7 | + |
| 8 | + Prism = await import('prismjs'); |
| 9 | + await import('prismjs/components/prism-javascript'); |
| 10 | + await import('prismjs/components/prism-json'); |
| 11 | + await import('prismjs/components/prism-markup-templating'); |
| 12 | + await import('prismjs/components/prism-php'); |
| 13 | + await import('prismjs/components/prism-scss'); |
| 14 | + await import('prismjs/components/prism-turtle'); |
| 15 | + await import('prismjs/components/prism-typescript'); |
| 16 | +} |
| 17 | + |
| 18 | +function getLanguage(element) { |
| 19 | + for (const className of element.classList) { |
| 20 | + if (!className.startsWith('language-')) { |
| 21 | + continue; |
| 22 | + } |
| 23 | + |
| 24 | + return className.substr(9); |
| 25 | + } |
| 26 | +} |
| 27 | + |
| 28 | +function highlightCodeElement(element, language) { |
| 29 | + if ( |
| 30 | + element.parentElement && |
| 31 | + element.parentElement.tagName && |
| 32 | + element.parentElement.tagName.toLowerCase() === 'pre' |
| 33 | + ) { |
| 34 | + element.parentElement.classList.add(`language-${language}`); |
| 35 | + } |
| 36 | + |
| 37 | + element.innerHTML = Prism.highlight( |
| 38 | + element.innerText, |
| 39 | + Prism.languages[language], |
| 40 | + language, |
| 41 | + ); |
| 42 | +} |
| 43 | + |
| 44 | +async function highlightCode() { |
| 45 | + const codeElements = document.querySelectorAll('code'); |
| 46 | + |
| 47 | + if (codeElements.length === 0) { |
| 48 | + return; |
| 49 | + } |
| 50 | + |
| 51 | + await loadPrism(); |
| 52 | + |
| 53 | + for (const codeElement of codeElements) { |
| 54 | + const language = getLanguage(codeElement); |
| 55 | + |
| 56 | + if (!language) { |
| 57 | + continue; |
| 58 | + } |
| 59 | + |
| 60 | + highlightCodeElement(codeElement, language); |
| 61 | + } |
| 62 | +} |
| 63 | + |
| 64 | +if (document.readyState === 'complete') { |
| 65 | + highlightCode(); |
| 66 | +} else { |
| 67 | + document.addEventListener('DOMContentLoaded', highlightCode); |
| 68 | +} |
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