55 lines
2.3 KiB
JavaScript
55 lines
2.3 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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// License: MIT
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the “Software”), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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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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