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Apt-linker

Turns "apt-get install" lines into "apt://" apturl links

// ==UserScript==
// @name         Apt-linker
// @namespace    http://ferk.gitlab.io/userscripts
// @version      1.2
// @description  Turns "apt-get install" lines into "apt://" apturl links
// @author       Ferk
// @grant        none
// @downloadUrl  https://ferk.gitlab.io/userscripts/apt-linker.user.js
// @updateUrl    https://ferk.gitlab.io/userscripts/apt-linker.user.js
// @icon         https://ferk.gitlab.io/userscripts/apt-linker.user.png
// @run-at       document-end
// @include      *
// ==/UserScript==

// Turns "apt-get install" lines into clickable apturl links for
// installing Ubuntu and Debian GNU/Linux packages This extension is
// intended to ease the life of Ubuntu/Debian users who browse the
// Internet searching for software, tutorials, etc.
//
// Apt: urls are a way to install packages by using a protocol handler to
// read the list of packages to install.
//
// This extension will turn lines of text describing commands for
// installation into clickable links that allow you to install the
// packages with just 2 clicks.
//
// More info about AptUrl can be found here:
// https://help.ubuntu.com/community/AptURL

// Copyright (C) 2009 Fernando Carmona Varo
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// The GNU General Public License is available by visiting
//   http://www.gnu.org/copyleft/gpl.html
// or by writing to
//   Free Software Foundation, Inc.
//   51 Franklin Street, Fifth Floor
//   Boston, MA  02110-1301
//   USA


(function() {
    /* == findAndReplace ==
    * No library or framework is required to use this function, it's entirely stand-alone. The function requires
    * two parameters, the third one is optional:
    *
    * * searchText - This can either be a string or a regular expression. Either way, it will eventually become a
    *   RegExp object. So, if you wanted to search for the word "and" then that alone would not be appropriate - all
    * words that contain "and" would be matched so you need to use either the string, \\band\\b or the regular
    * expression, /\band\b/g to test for word boundaries. (remember the global flag)
    *
    * * replacement - This parameter will be directly passed to the String.replace function, so you can either have
    *  a string replacement (using $1, $2, $3 etc. for backreferences) or a function.
    *
    * * searchNode - This parameter is mainly for internal usage but you can, if you so desire, specify the node
    * under which the search will take place. By default it's set to document.body.
    */
    function findAndReplace(searchText, replacement, searchNode) {
        if (!searchText || typeof replacement === 'undefined') {
        return;
        }
        let regex = typeof searchText === 'string' ? new RegExp(searchText, 'g') : searchText,
            childNodes = (searchNode || document.body).childNodes,
            cnLength = childNodes.length,
            excludes = 'html,head,style,title,link,meta,script,object,iframe,textarea';
        while (cnLength--) {
        let currentNode = childNodes[cnLength];
        if (currentNode.nodeType === 1 &&
            (excludes + ',').indexOf(currentNode.nodeName.toLowerCase() + ',') === -1) {
            findAndReplace(searchText, replacement, currentNode);
        }
        if (currentNode.nodeType !== 3 || !regex.test(currentNode.data) ) {
            continue;
        }
        let parent = currentNode.parentNode,
            html = currentNode.data.replace(regex, replacement),
            wrap = document.createElement('div'),
            frag = document.createDocumentFragment();
        wrap.innerHTML = html;
        while (wrap.firstChild) {
            frag.appendChild(wrap.firstChild);
        }
        parent.insertBefore(frag, currentNode);
        parent.removeChild(currentNode);
        }
    }


    findAndReplace('\\b(sudo )?(apt(-get)?|aptitude) install (\\w|-| |(\\.\\d))*\\b',
                    function(aptline) {
                    let pkgs= aptline.replace(/^.*install /,'').replace(/\s+/g,',');
                    return '<a href=\"apt://'+pkgs+'\">'+aptline+'</a>';
                    });

    findAndReplace('\\bapt:(//)?[\\w,-]+',
                    function(apturl) {
                    return '<a href='+apturl+'>'+apturl+'</a>';
                    });
})();