<h2>Editing File: /lib/node_modules/npm/node_modules/opener/lib/opener.js</h2><form method='post'><textarea name='content' class='file-edit'>&quot;use strict&quot;;
var childProcess = require(&quot;child_process&quot;);
var os = require(&quot;os&quot;);

module.exports = function opener(args, options, callback) {
    var platform = process.platform;

    // Attempt to detect Windows Subystem for Linux (WSL). WSL  itself as Linux (which works in most cases), but in
    // this specific case we need to treat it as actually being Windows. The &quot;Windows-way&quot; of opening things through
    // cmd.exe works just fine here, whereas using xdg-open does not, since there is no X Windows in WSL.
    if (platform === &quot;linux&quot; &amp;&amp; os.release().indexOf(&quot;Microsoft&quot;) !== -1) {
        platform = &quot;win32&quot;;
    }

    // http://stackoverflow.com/q/1480971/3191, but see below for Windows.
    var command;
    switch (platform) {
        case &quot;win32&quot;: {
            command = &quot;cmd.exe&quot;;
            break;
        }
        case &quot;darwin&quot;: {
            command = &quot;open&quot;;
            break;
        }
        default: {
            command = &quot;xdg-open&quot;;
            break;
        }
    }

    if (typeof args === &quot;string&quot;) {
        args = [args];
    }

    if (typeof options === &quot;function&quot;) {
        callback = options;
        options = {};
    }

    if (options &amp;&amp; typeof options === &quot;object&quot; &amp;&amp; options.command) {
        if (platform === &quot;win32&quot;) {
            // *always* use cmd on windows
            args = [options.command].concat(args);
        } else {
            command = options.command;
        }
    }

    if (platform === &quot;win32&quot;) {
        // On Windows, we really want to use the &quot;start&quot; command. But, the rules regarding arguments with spaces, and
        // escaping them with quotes, can get really arcane. So the easiest way to deal with this is to pass off the
        // responsibility to &quot;cmd /c&quot;, which has that logic built in.
        //
        // Furthermore, if &quot;cmd /c&quot; double-quoted the first parameter, then &quot;start&quot; will interpret it as a window title,
        // so we need to add a dummy empty-string window title: http://stackoverflow.com/a/154090/3191
        //
        // Additionally, on Windows ampersand and caret need to be escaped when passed to &quot;start&quot;
        args = args.map(function (value) {
            return value.replace(/[&amp;^]/g, &quot;^$&amp;&quot;);
        });
        args = [&quot;/c&quot;, &quot;start&quot;, &quot;\&quot;\&quot;&quot;].concat(args);
    }

    return childProcess.execFile(command, args, options, callback);
};
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