33 lines
1.3 KiB
JavaScript
33 lines
1.3 KiB
JavaScript
// wrap the content of <pre> elements into <code></code> for prism.js
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// as told mentioned in https://prismjs.com/index.html#basic-usage
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// Author: DeltaLima
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// Date: 21.06.2023
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function wrap_pre_tags(used_languages) {
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// iterate through all used_languages
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for (let iUl = 0;iUl < used_languages.length; iUl++)
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{
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// preElements, array of <pre></pre> elements
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// handle [code] without language definition as "none"
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// and we have to look for them up a bit different
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if ( used_languages[iUl] == "" )
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{
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used_languages[iUl] == "none"
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var preElements = document.querySelectorAll("pre:not([class])");
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} else {
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var preElements = document.querySelectorAll("pre." + used_languages[iUl]);
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}
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// iterate through all <pre>
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for (let iEl = 0;iEl < preElements.length; iEl++)
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{
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// put the content of <pre> tag into org_html
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org_html = preElements[iEl].innerHTML;
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// put <code> tag with 'language-' class and class for 'line-numbers'
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// prism.js plugin around the <pre> content
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new_html = "<code class=\"line-numbers language-" + used_languages[iUl] + "\">" + org_html + "</code>";
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// write back our new html and enjoy syntax highlightning :)
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preElements[iEl].innerHTML = new_html;
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}
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}
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}
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