flatpress-plugin-syntaxhigh.../res/syntaxhighlighter-ng.js
2023-06-22 16:04:50 +02:00

61 lines
2.5 KiB
JavaScript

// wrap the content of <pre> elements into <code></code> for prism.js
// as told mentioned in https://prismjs.com/index.html#basic-usage
// Author: DeltaLima
// Date: 21.06.2023
// License: MIT
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the “Software”), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
function wrap_pre_tags(used_languages, enable_line_numbers) {
if ( enable_line_numbers == true )
{
enable_line_numbers = "line-numbers";
} else {
enable_line_numbers = "";
}
// iterate through all used_languages
for (let iUl = 0;iUl < used_languages.length; iUl++)
{
// preElements, array of <pre></pre> elements
// handle [code] without language definition as "none"
// and we have to look for them up a bit different
if ( used_languages[iUl] == "" )
{
used_languages[iUl] == "none"
var preElements = document.querySelectorAll("pre:not([class])");
} else {
var preElements = document.querySelectorAll("pre." + used_languages[iUl]);
}
// iterate through all <pre>
for (let iEl = 0;iEl < preElements.length; iEl++)
{
// put the content of <pre> tag into org_html
org_html = preElements[iEl].innerHTML;
// put <code> tag with 'language-' class and plugin-classes
// prism.js plugin around the <pre> content
new_html = "<code class=\"language-" + used_languages[iUl] + " " + enable_line_numbers + "\">" + org_html + "</code>";
// write back our new html and enjoy syntax highlightning :)
preElements[iEl].innerHTML = new_html;
}
}
}