first

wp-content/plugins/debloat/vendor/matthiasmullie/minify/LICENSE

@@ -0,0 +1,18 @@
+Copyright (c) 2012 Matthias Mullie
+
+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.

wp-content/plugins/debloat/vendor/matthiasmullie/minify/bin/minifycss

@@ -0,0 +1,45 @@
+#!/usr/bin/env php
+<?php
+use MatthiasMullie\Minify;
+
+// command line utility to minify CSS
+if (file_exists(__DIR__ . '/../../../autoload.php')) {
+    // if composer install
+    require_once __DIR__ . '/../../../autoload.php';
+} else {
+    require_once __DIR__ . '/../src/Minify.php';
+    require_once __DIR__ . '/../src/CSS.php';
+    require_once __DIR__ . '/../src/Exception.php';
+}
+
+error_reporting(E_ALL);
+// check PHP setup for cli arguments
+if (!isset($_SERVER['argv']) && !isset($argv)) {
+    fwrite(STDERR, 'Please enable the "register_argc_argv" directive in your php.ini' . PHP_EOL);
+    exit(1);
+} elseif (!isset($argv)) {
+    $argv = $_SERVER['argv'];
+}
+// check if path to file given
+if (!isset($argv[1])) {
+    fwrite(STDERR, 'Argument expected: path to file' . PHP_EOL);
+    exit(1);
+}
+// check if script run in cli environment
+if ('cli' !== php_sapi_name()) {
+    fwrite(STDERR, $argv[1] . ' must be run in the command line' . PHP_EOL);
+    exit(1);
+}
+// check if source file exists
+if (!file_exists($argv[1])) {
+    fwrite(STDERR, 'Source file "' . $argv[1] . '" not found' . PHP_EOL);
+    exit(1);
+}
+
+try {
+    $minifier = new Minify\CSS($argv[1]);
+    echo $minifier->minify();
+} catch (Exception $e) {
+    fwrite(STDERR, $e->getMessage(), PHP_EOL);
+    exit(1);
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/bin/minifyjs

@@ -0,0 +1,45 @@
+#!/usr/bin/env php
+<?php
+use MatthiasMullie\Minify;
+
+// command line utility to minify JS
+if (file_exists(__DIR__ . '/../../../autoload.php')) {
+    // if composer install
+    require_once __DIR__ . '/../../../autoload.php';
+} else {
+    require_once __DIR__ . '/../src/Minify.php';
+    require_once __DIR__ . '/../src/JS.php';
+    require_once __DIR__ . '/../src/Exception.php';
+}
+
+error_reporting(E_ALL);
+// check PHP setup for cli arguments
+if (!isset($_SERVER['argv']) && !isset($argv)) {
+    fwrite(STDERR, 'Please enable the "register_argc_argv" directive in your php.ini' . PHP_EOL);
+    exit(1);
+} elseif (!isset($argv)) {
+    $argv = $_SERVER['argv'];
+}
+// check if path to file given
+if (!isset($argv[1])) {
+    fwrite(STDERR, 'Argument expected: path to file' . PHP_EOL);
+    exit(1);
+}
+// check if script run in cli environment
+if ('cli' !== php_sapi_name()) {
+    fwrite(STDERR, $argv[1] . ' must be run in the command line' . PHP_EOL);
+    exit(1);
+}
+// check if source file exists
+if (!file_exists($argv[1])) {
+    fwrite(STDERR, 'Source file "' . $argv[1] . '" not found' . PHP_EOL);
+    exit(1);
+}
+
+try {
+    $minifier = new Minify\JS($argv[1]);
+    echo $minifier->minify();
+} catch (Exception $e) {
+    fwrite(STDERR, $e->getMessage(), PHP_EOL);
+    exit(1);
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/data/js/keywords_after.txt

@@ -0,0 +1,7 @@
+in
+public
+extends
+private
+protected
+implements
+instanceof

wp-content/plugins/debloat/vendor/matthiasmullie/minify/data/js/keywords_before.txt

@@ -0,0 +1,26 @@
+do
+in
+let
+new
+var
+case
+else
+enum
+void
+with
+class
+const
+yield
+delete
+export
+import
+public
+static
+typeof
+extends
+package
+private
+function
+protected
+implements
+instanceof

wp-content/plugins/debloat/vendor/matthiasmullie/minify/data/js/keywords_reserved.txt

@@ -0,0 +1,63 @@
+do
+if
+in
+for
+let
+new
+try
+var
+case
+else
+enum
+eval
+null
+this
+true
+void
+with
+break
+catch
+class
+const
+false
+super
+throw
+while
+yield
+delete
+export
+import
+public
+return
+static
+switch
+typeof
+default
+extends
+finally
+package
+private
+continue
+debugger
+function
+arguments
+interface
+protected
+implements
+instanceof
+abstract
+boolean
+byte
+char
+double
+final
+float
+goto
+int
+long
+native
+short
+synchronized
+throws
+transient
+volatile

wp-content/plugins/debloat/vendor/matthiasmullie/minify/data/js/operators.txt

@@ -0,0 +1,46 @@
++
+-
+*
+/
+%
+=
++=
+-=
+*=
+/=
+%=
+<<=
+>>=
+>>>=
+&=
+^=
+|=
+&
+|
+^
+~
+<<
+>>
+>>>
+==
+===
+!=
+!==
+>
+<
+>=
+<=
+&&
+||
+!
+.
+[
+]
+?
+:
+,
+;
+(
+)
+{
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/data/js/operators_after.txt

@@ -0,0 +1,43 @@
++
+-
+*
+/
+%
+=
++=
+-=
+*=
+/=
+%=
+<<=
+>>=
+>>>=
+&=
+^=
+|=
+&
+|
+^
+<<
+>>
+>>>
+==
+===
+!=
+!==
+>
+<
+>=
+<=
+&&
+||
+.
+[
+]
+?
+:
+,
+;
+(
+)
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/data/js/operators_before.txt

@@ -0,0 +1,43 @@
++
+-
+*
+/
+%
+=
++=
+-=
+*=
+/=
+%=
+<<=
+>>=
+>>>=
+&=
+^=
+|=
+&
+|
+^
+~
+<<
+>>
+>>>
+==
+===
+!=
+!==
+>
+<
+>=
+<=
+&&
+||
+!
+.
+[
+?
+:
+,
+;
+(
+{

wp-content/plugins/debloat/vendor/matthiasmullie/minify/ruleset.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<ruleset>
+    <rule ref="PSR12" />
+
+    <file>./src</file>
+    <file>./tests</file>
+
+    <arg name="extensions" value="php" />
+    <arg name="encoding" value="UTF-8" />
+</ruleset>

wp-content/plugins/debloat/vendor/matthiasmullie/minify/src/CSS.php

@@ -0,0 +1,779 @@
+<?php
+
+/**
+ * CSS Minifier.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+
+namespace MatthiasMullie\Minify;
+
+use MatthiasMullie\Minify\Exceptions\FileImportException;
+use MatthiasMullie\PathConverter\Converter;
+use MatthiasMullie\PathConverter\ConverterInterface;
+
+/**
+ * CSS minifier.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @author Tijs Verkoyen <minify@verkoyen.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+class CSS extends Minify
+{
+    /**
+     * @var int maximum inport size in kB
+     */
+    protected $maxImportSize = 5;
+
+    /**
+     * @var string[] valid import extensions
+     */
+    protected $importExtensions = array(
+        'gif' => 'data:image/gif',
+        'png' => 'data:image/png',
+        'jpe' => 'data:image/jpeg',
+        'jpg' => 'data:image/jpeg',
+        'jpeg' => 'data:image/jpeg',
+        'svg' => 'data:image/svg+xml',
+        'woff' => 'data:application/x-font-woff',
+        'woff2' => 'data:application/x-font-woff2',
+        'avif' => 'data:image/avif',
+        'apng' => 'data:image/apng',
+        'webp' => 'data:image/webp',
+        'tif' => 'image/tiff',
+        'tiff' => 'image/tiff',
+        'xbm' => 'image/x-xbitmap',
+    );
+
+    /**
+     * Set the maximum size if files to be imported.
+     *
+     * Files larger than this size (in kB) will not be imported into the CSS.
+     * Importing files into the CSS as data-uri will save you some connections,
+     * but we should only import relatively small decorative images so that our
+     * CSS file doesn't get too bulky.
+     *
+     * @param int $size Size in kB
+     */
+    public function setMaxImportSize($size)
+    {
+        $this->maxImportSize = $size;
+    }
+
+    /**
+     * Set the type of extensions to be imported into the CSS (to save network
+     * connections).
+     * Keys of the array should be the file extensions & respective values
+     * should be the data type.
+     *
+     * @param string[] $extensions Array of file extensions
+     */
+    public function setImportExtensions(array $extensions)
+    {
+        $this->importExtensions = $extensions;
+    }
+
+    /**
+     * Move any import statements to the top.
+     *
+     * @param string $content Nearly finished CSS content
+     *
+     * @return string
+     */
+    protected function moveImportsToTop($content)
+    {
+        if (preg_match_all('/(;?)(@import (?<url>url\()?(?P<quotes>["\']?).+?(?P=quotes)(?(url)\)));?/', $content, $matches)) {
+            // remove from content
+            foreach ($matches[0] as $import) {
+                $content = str_replace($import, '', $content);
+            }
+
+            // add to top
+            $content = implode(';', $matches[2]) . ';' . trim($content, ';');
+        }
+
+        return $content;
+    }
+
+    /**
+     * Combine CSS from import statements.
+     *
+     * Import statements will be loaded and their content merged into the original
+     * file, to save HTTP requests.
+     *
+     * @param string   $source  The file to combine imports for
+     * @param string   $content The CSS content to combine imports for
+     * @param string[] $parents Parent paths, for circular reference checks
+     *
+     * @return string
+     *
+     * @throws FileImportException
+     */
+    protected function combineImports($source, $content, $parents)
+    {
+        $importRegexes = array(
+            // @import url(xxx)
+            '/
+            # import statement
+            @import
+
+            # whitespace
+            \s+
+
+                # open url()
+                url\(
+
+                    # (optional) open path enclosure
+                    (?P<quotes>["\']?)
+
+                        # fetch path
+                        (?P<path>.+?)
+
+                    # (optional) close path enclosure
+                    (?P=quotes)
+
+                # close url()
+                \)
+
+                # (optional) trailing whitespace
+                \s*
+
+                # (optional) media statement(s)
+                (?P<media>[^;]*)
+
+                # (optional) trailing whitespace
+                \s*
+
+            # (optional) closing semi-colon
+            ;?
+
+            /ix',
+
+            // @import 'xxx'
+            '/
+
+            # import statement
+            @import
+
+            # whitespace
+            \s+
+
+                # open path enclosure
+                (?P<quotes>["\'])
+
+                    # fetch path
+                    (?P<path>.+?)
+
+                # close path enclosure
+                (?P=quotes)
+
+                # (optional) trailing whitespace
+                \s*
+
+                # (optional) media statement(s)
+                (?P<media>[^;]*)
+
+                # (optional) trailing whitespace
+                \s*
+
+            # (optional) closing semi-colon
+            ;?
+
+            /ix',
+        );
+
+        // find all relative imports in css
+        $matches = array();
+        foreach ($importRegexes as $importRegex) {
+            if (preg_match_all($importRegex, $content, $regexMatches, PREG_SET_ORDER)) {
+                $matches = array_merge($matches, $regexMatches);
+            }
+        }
+
+        $search = array();
+        $replace = array();
+
+        // loop the matches
+        foreach ($matches as $match) {
+            // get the path for the file that will be imported
+            $importPath = dirname($source) . '/' . $match['path'];
+
+            // only replace the import with the content if we can grab the
+            // content of the file
+            if (!$this->canImportByPath($match['path']) || !$this->canImportFile($importPath)) {
+                continue;
+            }
+
+            // check if current file was not imported previously in the same
+            // import chain.
+            if (in_array($importPath, $parents)) {
+                throw new FileImportException('Failed to import file "' . $importPath . '": circular reference detected.');
+            }
+
+            // grab referenced file & minify it (which may include importing
+            // yet other @import statements recursively)
+            $minifier = new self($importPath);
+            $minifier->setMaxImportSize($this->maxImportSize);
+            $minifier->setImportExtensions($this->importExtensions);
+            $importContent = $minifier->execute($source, $parents);
+
+            // check if this is only valid for certain media
+            if (!empty($match['media'])) {
+                $importContent = '@media ' . $match['media'] . '{' . $importContent . '}';
+            }
+
+            // add to replacement array
+            $search[] = $match[0];
+            $replace[] = $importContent;
+        }
+
+        // replace the import statements
+        return str_replace($search, $replace, $content);
+    }
+
+    /**
+     * Import files into the CSS, base64-ized.
+     *
+     * @url(image.jpg) images will be loaded and their content merged into the
+     * original file, to save HTTP requests.
+     *
+     * @param string $source  The file to import files for
+     * @param string $content The CSS content to import files for
+     *
+     * @return string
+     */
+    protected function importFiles($source, $content)
+    {
+        $regex = '/url\((["\']?)(.+?)\\1\)/i';
+        if ($this->importExtensions && preg_match_all($regex, $content, $matches, PREG_SET_ORDER)) {
+            $search = array();
+            $replace = array();
+
+            // loop the matches
+            foreach ($matches as $match) {
+                $extension = substr(strrchr($match[2], '.'), 1);
+                if ($extension && !array_key_exists($extension, $this->importExtensions)) {
+                    continue;
+                }
+
+                // get the path for the file that will be imported
+                $path = $match[2];
+                $path = dirname($source) . '/' . $path;
+
+                // only replace the import with the content if we're able to get
+                // the content of the file, and it's relatively small
+                if ($this->canImportFile($path) && $this->canImportBySize($path)) {
+                    // grab content && base64-ize
+                    $importContent = $this->load($path);
+                    $importContent = base64_encode($importContent);
+
+                    // build replacement
+                    $search[] = $match[0];
+                    $replace[] = 'url(' . $this->importExtensions[$extension] . ';base64,' . $importContent . ')';
+                }
+            }
+
+            // replace the import statements
+            $content = str_replace($search, $replace, $content);
+        }
+
+        return $content;
+    }
+
+    /**
+     * Minify the data.
+     * Perform CSS optimizations.
+     *
+     * @param string[optional] $path    Path to write the data to
+     * @param string[] $parents Parent paths, for circular reference checks
+     *
+     * @return string The minified data
+     */
+    public function execute($path = null, $parents = array())
+    {
+        $content = '';
+
+        // loop CSS data (raw data and files)
+        foreach ($this->data as $source => $css) {
+            /*
+             * Let's first take out strings & comments, since we can't just
+             * remove whitespace anywhere. If whitespace occurs inside a string,
+             * we should leave it alone. E.g.:
+             * p { content: "a   test" }
+             */
+            $this->extractStrings();
+            $this->stripComments();
+            $this->extractMath();
+            $this->extractCustomProperties();
+            $css = $this->replace($css);
+
+            $css = $this->stripWhitespace($css);
+            $css = $this->shortenColors($css);
+            $css = $this->shortenZeroes($css);
+            $css = $this->shortenFontWeights($css);
+            $css = $this->stripEmptyTags($css);
+
+            // restore the string we've extracted earlier
+            $css = $this->restoreExtractedData($css);
+
+            $source = is_int($source) ? '' : $source;
+            $parents = $source ? array_merge($parents, array($source)) : $parents;
+            $css = $this->combineImports($source, $css, $parents);
+            $css = $this->importFiles($source, $css);
+
+            /*
+             * If we'll save to a new path, we'll have to fix the relative paths
+             * to be relative no longer to the source file, but to the new path.
+             * If we don't write to a file, fall back to same path so no
+             * conversion happens (because we still want it to go through most
+             * of the move code, which also addresses url() & @import syntax...)
+             */
+            $converter = $this->getPathConverter($source, $path ?: $source);
+            $css = $this->move($converter, $css);
+
+            // combine css
+            $content .= $css;
+        }
+
+        $content = $this->moveImportsToTop($content);
+
+        return $content;
+    }
+
+    /**
+     * Moving a css file should update all relative urls.
+     * Relative references (e.g. ../images/image.gif) in a certain css file,
+     * will have to be updated when a file is being saved at another location
+     * (e.g. ../../images/image.gif, if the new CSS file is 1 folder deeper).
+     *
+     * @param ConverterInterface $converter Relative path converter
+     * @param string             $content   The CSS content to update relative urls for
+     *
+     * @return string
+     */
+    protected function move(ConverterInterface $converter, $content)
+    {
+        /*
+         * Relative path references will usually be enclosed by url(). @import
+         * is an exception, where url() is not necessary around the path (but is
+         * allowed).
+         * This *could* be 1 regular expression, where both regular expressions
+         * in this array are on different sides of a |. But we're using named
+         * patterns in both regexes, the same name on both regexes. This is only
+         * possible with a (?J) modifier, but that only works after a fairly
+         * recent PCRE version. That's why I'm doing 2 separate regular
+         * expressions & combining the matches after executing of both.
+         */
+        $relativeRegexes = array(
+            // url(xxx)
+            '/
+            # open url()
+            url\(
+
+                \s*
+
+                # open path enclosure
+                (?P<quotes>["\'])?
+
+                    # fetch path
+                    (?P<path>.+?)
+
+                # close path enclosure
+                (?(quotes)(?P=quotes))
+
+                \s*
+
+            # close url()
+            \)
+
+            /ix',
+
+            // @import "xxx"
+            '/
+            # import statement
+            @import
+
+            # whitespace
+            \s+
+
+                # we don\'t have to check for @import url(), because the
+                # condition above will already catch these
+
+                # open path enclosure
+                (?P<quotes>["\'])
+
+                    # fetch path
+                    (?P<path>.+?)
+
+                # close path enclosure
+                (?P=quotes)
+
+            /ix',
+        );
+
+        // find all relative urls in css
+        $matches = array();
+        foreach ($relativeRegexes as $relativeRegex) {
+            if (preg_match_all($relativeRegex, $content, $regexMatches, PREG_SET_ORDER)) {
+                $matches = array_merge($matches, $regexMatches);
+            }
+        }
+
+        $search = array();
+        $replace = array();
+
+        // loop all urls
+        foreach ($matches as $match) {
+            // determine if it's a url() or an @import match
+            $type = (strpos($match[0], '@import') === 0 ? 'import' : 'url');
+
+            $url = $match['path'];
+            if ($this->canImportByPath($url)) {
+                // attempting to interpret GET-params makes no sense, so let's discard them for awhile
+                $params = strrchr($url, '?');
+                $url = $params ? substr($url, 0, -strlen($params)) : $url;
+
+                // fix relative url
+                $url = $converter->convert($url);
+
+                // now that the path has been converted, re-apply GET-params
+                $url .= $params;
+            }
+
+            /*
+             * Urls with control characters above 0x7e should be quoted.
+             * According to Mozilla's parser, whitespace is only allowed at the
+             * end of unquoted urls.
+             * Urls with `)` (as could happen with data: uris) should also be
+             * quoted to avoid being confused for the url() closing parentheses.
+             * And urls with a # have also been reported to cause issues.
+             * Urls with quotes inside should also remain escaped.
+             *
+             * @see https://developer.mozilla.org/nl/docs/Web/CSS/url#The_url()_functional_notation
+             * @see https://hg.mozilla.org/mozilla-central/rev/14abca4e7378
+             * @see https://github.com/matthiasmullie/minify/issues/193
+             */
+            $url = trim($url);
+            if (preg_match('/[\s\)\'"#\x{7f}-\x{9f}]/u', $url)) {
+                $url = $match['quotes'] . $url . $match['quotes'];
+            }
+
+            // build replacement
+            $search[] = $match[0];
+            if ($type === 'url') {
+                $replace[] = 'url(' . $url . ')';
+            } elseif ($type === 'import') {
+                $replace[] = '@import "' . $url . '"';
+            }
+        }
+
+        // replace urls
+        return str_replace($search, $replace, $content);
+    }
+
+    /**
+     * Shorthand hex color codes.
+     * #FF0000 -> #F00.
+     *
+     * @param string $content The CSS content to shorten the hex color codes for
+     *
+     * @return string
+     */
+    protected function shortenColors($content)
+    {
+        $content = preg_replace('/(?<=[: ])#([0-9a-z])\\1([0-9a-z])\\2([0-9a-z])\\3(?:([0-9a-z])\\4)?(?=[; }])/i', '#$1$2$3$4', $content);
+
+        // remove alpha channel if it's pointless...
+        $content = preg_replace('/(?<=[: ])#([0-9a-z]{6})ff?(?=[; }])/i', '#$1', $content);
+        $content = preg_replace('/(?<=[: ])#([0-9a-z]{3})f?(?=[; }])/i', '#$1', $content);
+
+        $colors = array(
+            // we can shorten some even more by replacing them with their color name
+            '#F0FFFF' => 'azure',
+            '#F5F5DC' => 'beige',
+            '#A52A2A' => 'brown',
+            '#FF7F50' => 'coral',
+            '#FFD700' => 'gold',
+            '#808080' => 'gray',
+            '#008000' => 'green',
+            '#4B0082' => 'indigo',
+            '#FFFFF0' => 'ivory',
+            '#F0E68C' => 'khaki',
+            '#FAF0E6' => 'linen',
+            '#800000' => 'maroon',
+            '#000080' => 'navy',
+            '#808000' => 'olive',
+            '#CD853F' => 'peru',
+            '#FFC0CB' => 'pink',
+            '#DDA0DD' => 'plum',
+            '#800080' => 'purple',
+            '#F00' => 'red',
+            '#FA8072' => 'salmon',
+            '#A0522D' => 'sienna',
+            '#C0C0C0' => 'silver',
+            '#FFFAFA' => 'snow',
+            '#D2B48C' => 'tan',
+            '#FF6347' => 'tomato',
+            '#EE82EE' => 'violet',
+            '#F5DEB3' => 'wheat',
+            // or the other way around
+            'WHITE' => '#fff',
+            'BLACK' => '#000',
+        );
+
+        return preg_replace_callback(
+            '/(?<=[: ])(' . implode('|', array_keys($colors)) . ')(?=[; }])/i',
+            function ($match) use ($colors) {
+                return $colors[strtoupper($match[0])];
+            },
+            $content
+        );
+    }
+
+    /**
+     * Shorten CSS font weights.
+     *
+     * @param string $content The CSS content to shorten the font weights for
+     *
+     * @return string
+     */
+    protected function shortenFontWeights($content)
+    {
+        $weights = array(
+            'normal' => 400,
+            'bold' => 700,
+        );
+
+        $callback = function ($match) use ($weights) {
+            return $match[1] . $weights[$match[2]];
+        };
+
+        return preg_replace_callback('/(font-weight\s*:\s*)(' . implode('|', array_keys($weights)) . ')(?=[;}])/', $callback, $content);
+    }
+
+    /**
+     * Shorthand 0 values to plain 0, instead of e.g. -0em.
+     *
+     * @param string $content The CSS content to shorten the zero values for
+     *
+     * @return string
+     */
+    protected function shortenZeroes($content)
+    {
+        // we don't want to strip units in `calc()` expressions:
+        // `5px - 0px` is valid, but `5px - 0` is not
+        // `10px * 0` is valid (equates to 0), and so is `10 * 0px`, but
+        // `10 * 0` is invalid
+        // we've extracted calcs earlier, so we don't need to worry about this
+
+        // reusable bits of code throughout these regexes:
+        // before & after are used to make sure we don't match lose unintended
+        // 0-like values (e.g. in #000, or in http://url/1.0)
+        // units can be stripped from 0 values, or used to recognize non 0
+        // values (where wa may be able to strip a .0 suffix)
+        $before = '(?<=[:(, ])';
+        $after = '(?=[ ,);}])';
+        $units = '(em|ex|%|px|cm|mm|in|pt|pc|ch|rem|vh|vw|vmin|vmax|vm)';
+
+        // strip units after zeroes (0px -> 0)
+        // NOTE: it should be safe to remove all units for a 0 value, but in
+        // practice, Webkit (especially Safari) seems to stumble over at least
+        // 0%, potentially other units as well. Only stripping 'px' for now.
+        // @see https://github.com/matthiasmullie/minify/issues/60
+        $content = preg_replace('/' . $before . '(-?0*(\.0+)?)(?<=0)px' . $after . '/', '\\1', $content);
+
+        // strip 0-digits (.0 -> 0)
+        $content = preg_replace('/' . $before . '\.0+' . $units . '?' . $after . '/', '0\\1', $content);
+        // strip trailing 0: 50.10 -> 50.1, 50.10px -> 50.1px
+        $content = preg_replace('/' . $before . '(-?[0-9]+\.[0-9]+)0+' . $units . '?' . $after . '/', '\\1\\2', $content);
+        // strip trailing 0: 50.00 -> 50, 50.00px -> 50px
+        $content = preg_replace('/' . $before . '(-?[0-9]+)\.0+' . $units . '?' . $after . '/', '\\1\\2', $content);
+        // strip leading 0: 0.1 -> .1, 01.1 -> 1.1
+        $content = preg_replace('/' . $before . '(-?)0+([0-9]*\.[0-9]+)' . $units . '?' . $after . '/', '\\1\\2\\3', $content);
+
+        // strip negative zeroes (-0 -> 0) & truncate zeroes (00 -> 0)
+        $content = preg_replace('/' . $before . '-?0+' . $units . '?' . $after . '/', '0\\1', $content);
+
+        // IE doesn't seem to understand a unitless flex-basis value (correct -
+        // it goes against the spec), so let's add it in again (make it `%`,
+        // which is only 1 char: 0%, 0px, 0 anything, it's all just the same)
+        // @see https://developer.mozilla.org/nl/docs/Web/CSS/flex
+        $content = preg_replace('/flex:([0-9]+\s[0-9]+\s)0([;\}])/', 'flex:${1}0%${2}', $content);
+        $content = preg_replace('/flex-basis:0([;\}])/', 'flex-basis:0%${1}', $content);
+
+        return $content;
+    }
+
+    /**
+     * Strip empty tags from source code.
+     *
+     * @param string $content
+     *
+     * @return string
+     */
+    protected function stripEmptyTags($content)
+    {
+        $content = preg_replace('/(?<=^)[^\{\};]+\{\s*\}/', '', $content);
+        $content = preg_replace('/(?<=(\}|;))[^\{\};]+\{\s*\}/', '', $content);
+
+        return $content;
+    }
+
+    /**
+     * Strip comments from source code.
+     */
+    protected function stripComments()
+    {
+        $this->stripMultilineComments();
+    }
+
+    /**
+     * Strip whitespace.
+     *
+     * @param string $content The CSS content to strip the whitespace for
+     *
+     * @return string
+     */
+    protected function stripWhitespace($content)
+    {
+        // remove leading & trailing whitespace
+        $content = preg_replace('/^\s*/m', '', $content);
+        $content = preg_replace('/\s*$/m', '', $content);
+
+        // replace newlines with a single space
+        $content = preg_replace('/\s+/', ' ', $content);
+
+        // remove whitespace around meta characters
+        // inspired by stackoverflow.com/questions/15195750/minify-compress-css-with-regex
+        $content = preg_replace('/\s*([\*$~^|]?+=|[{};,>~]|!important\b)\s*/', '$1', $content);
+        $content = preg_replace('/([\[(:>\+])\s+/', '$1', $content);
+        $content = preg_replace('/\s+([\]\)>\+])/', '$1', $content);
+        $content = preg_replace('/\s+(:)(?![^\}]*\{)/', '$1', $content);
+
+        // whitespace around + and - can only be stripped inside some pseudo-
+        // classes, like `:nth-child(3+2n)`
+        // not in things like `calc(3px + 2px)`, shorthands like `3px -2px`, or
+        // selectors like `div.weird- p`
+        $pseudos = array('nth-child', 'nth-last-child', 'nth-last-of-type', 'nth-of-type');
+        $content = preg_replace('/:(' . implode('|', $pseudos) . ')\(\s*([+-]?)\s*(.+?)\s*([+-]?)\s*(.*?)\s*\)/', ':$1($2$3$4$5)', $content);
+
+        // remove semicolon/whitespace followed by closing bracket
+        $content = str_replace(';}', '}', $content);
+
+        return trim($content);
+    }
+
+    /**
+     * Replace all occurrences of functions that may contain math, where
+     * whitespace around operators needs to be preserved (e.g. calc, clamp).
+     */
+    protected function extractMath()
+    {
+        $functions = array('calc', 'clamp', 'min', 'max');
+        $pattern = '/\b(' . implode('|', $functions) . ')(\(.+?)(?=$|;|})/m';
+
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier, $pattern, &$callback) {
+            $function = $match[1];
+            $length = strlen($match[2]);
+            $expr = '';
+            $opened = 0;
+
+            // the regular expression for extracting math has 1 significant problem:
+            // it can't determine the correct closing parenthesis...
+            // instead, it'll match a larger portion of code to where it's certain that
+            // the calc() musts have ended, and we'll figure out which is the correct
+            // closing parenthesis here, by counting how many have opened
+            for ($i = 0; $i < $length; ++$i) {
+                $char = $match[2][$i];
+                $expr .= $char;
+                if ($char === '(') {
+                    ++$opened;
+                } elseif ($char === ')' && --$opened === 0) {
+                    break;
+                }
+            }
+
+            // now that we've figured out where the calc() starts and ends, extract it
+            $count = count($minifier->extracted);
+            $placeholder = 'math(' . $count . ')';
+            $minifier->extracted[$placeholder] = $function . '(' . trim(substr($expr, 1, -1)) . ')';
+
+            // and since we've captured more code than required, we may have some leftover
+            // calc() in here too - go recursive on the remaining but of code to go figure
+            // that out and extract what is needed
+            $rest = $minifier->str_replace_first($function . $expr, '', $match[0]);
+            $rest = preg_replace_callback($pattern, $callback, $rest);
+
+            return $placeholder . $rest;
+        };
+
+        $this->registerPattern($pattern, $callback);
+    }
+
+    /**
+     * Replace custom properties, whose values may be used in scenarios where
+     * we wouldn't want them to be minified (e.g. inside calc).
+     */
+    protected function extractCustomProperties()
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $this->registerPattern(
+            '/(?<=^|[;}{])\s*(--[^:;{}"\'\s]+)\s*:([^;{}]+)/m',
+            function ($match) use ($minifier) {
+                $placeholder = '--custom-' . count($minifier->extracted) . ':0';
+                $minifier->extracted[$placeholder] = $match[1] . ':' . trim($match[2]);
+
+                return $placeholder;
+            }
+        );
+    }
+
+    /**
+     * Check if file is small enough to be imported.
+     *
+     * @param string $path The path to the file
+     *
+     * @return bool
+     */
+    protected function canImportBySize($path)
+    {
+        return ($size = @filesize($path)) && $size <= $this->maxImportSize * 1024;
+    }
+
+    /**
+     * Check if file a file can be imported, going by the path.
+     *
+     * @param string $path
+     *
+     * @return bool
+     */
+    protected function canImportByPath($path)
+    {
+        return preg_match('/^(data:|https?:|\\/)/', $path) === 0;
+    }
+
+    /**
+     * Return a converter to update relative paths to be relative to the new
+     * destination.
+     *
+     * @param string $source
+     * @param string $target
+     *
+     * @return ConverterInterface
+     */
+    protected function getPathConverter($source, $target)
+    {
+        return new Converter($source, $target);
+    }
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/src/Exception.php

@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * Base Exception.
+ *
+ * @deprecated Use Exceptions\BasicException instead
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+
+namespace MatthiasMullie\Minify;
+
+/**
+ * Base Exception Class.
+ *
+ * @deprecated Use Exceptions\BasicException instead
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+abstract class Exception extends \Exception
+{
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/src/Exceptions/BasicException.php

@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * Basic exception.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+
+namespace MatthiasMullie\Minify\Exceptions;
+
+use MatthiasMullie\Minify\Exception;
+
+/**
+ * Basic Exception Class.
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+abstract class BasicException extends Exception
+{
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/src/Exceptions/FileImportException.php

@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * File Import Exception.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+
+namespace MatthiasMullie\Minify\Exceptions;
+
+/**
+ * File Import Exception Class.
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+class FileImportException extends BasicException
+{
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/src/Exceptions/IOException.php

@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * IO Exception.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+
+namespace MatthiasMullie\Minify\Exceptions;
+
+/**
+ * IO Exception Class.
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+class IOException extends BasicException
+{
+}

wp-content/plugins/debloat/vendor/matthiasmullie/minify/src/Minify.php

@@ -0,0 +1,554 @@
+<?php
+
+/**
+ * Abstract minifier class.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+
+namespace MatthiasMullie\Minify;
+
+use MatthiasMullie\Minify\Exceptions\IOException;
+use Psr\Cache\CacheItemInterface;
+
+/**
+ * Abstract minifier class.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+abstract class Minify
+{
+    /**
+     * The data to be minified.
+     *
+     * @var string[]
+     */
+    protected $data = array();
+
+    /**
+     * Array of patterns to match.
+     *
+     * @var string[]
+     */
+    protected $patterns = array();
+
+    /**
+     * This array will hold content of strings and regular expressions that have
+     * been extracted from the JS source code, so we can reliably match "code",
+     * without having to worry about potential "code-like" characters inside.
+     *
+     * @internal
+     *
+     * @var string[]
+     */
+    public $extracted = array();
+
+    /**
+     * Init the minify class - optionally, code may be passed along already.
+     */
+    public function __construct(/* $data = null, ... */)
+    {
+        // it's possible to add the source through the constructor as well ;)
+        if (func_num_args()) {
+            call_user_func_array(array($this, 'add'), func_get_args());
+        }
+    }
+
+    /**
+     * Add a file or straight-up code to be minified.
+     *
+     * @param string|string[] $data
+     *
+     * @return static
+     */
+    public function add($data /* $data = null, ... */)
+    {
+        // bogus "usage" of parameter $data: scrutinizer warns this variable is
+        // not used (we're using func_get_args instead to support overloading),
+        // but it still needs to be defined because it makes no sense to have
+        // this function without argument :)
+        $args = array($data) + func_get_args();
+
+        // this method can be overloaded
+        foreach ($args as $data) {
+            if (is_array($data)) {
+                call_user_func_array(array($this, 'add'), $data);
+                continue;
+            }
+
+            // redefine var
+            $data = (string) $data;
+
+            // load data
+            $value = $this->load($data);
+            $key = ($data != $value) ? $data : count($this->data);
+
+            // replace CR linefeeds etc.
+            // @see https://github.com/matthiasmullie/minify/pull/139
+            $value = str_replace(array("\r\n", "\r"), "\n", $value);
+
+            // store data
+            $this->data[$key] = $value;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Add a file to be minified.
+     *
+     * @param string|string[] $data
+     *
+     * @return static
+     *
+     * @throws IOException
+     */
+    public function addFile($data /* $data = null, ... */)
+    {
+        // bogus "usage" of parameter $data: scrutinizer warns this variable is
+        // not used (we're using func_get_args instead to support overloading),
+        // but it still needs to be defined because it makes no sense to have
+        // this function without argument :)
+        $args = array($data) + func_get_args();
+
+        // this method can be overloaded
+        foreach ($args as $path) {
+            if (is_array($path)) {
+                call_user_func_array(array($this, 'addFile'), $path);
+                continue;
+            }
+
+            // redefine var
+            $path = (string) $path;
+
+            // check if we can read the file
+            if (!$this->canImportFile($path)) {
+                throw new IOException('The file "' . $path . '" could not be opened for reading. Check if PHP has enough permissions.');
+            }
+
+            $this->add($path);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Minify the data & (optionally) saves it to a file.
+     *
+     * @param string[optional] $path Path to write the data to
+     *
+     * @return string The minified data
+     */
+    public function minify($path = null)
+    {
+        $content = $this->execute($path);
+
+        // save to path
+        if ($path !== null) {
+            $this->save($content, $path);
+        }
+
+        return $content;
+    }
+
+    /**
+     * Minify & gzip the data & (optionally) saves it to a file.
+     *
+     * @param string[optional] $path  Path to write the data to
+     * @param int[optional]    $level Compression level, from 0 to 9
+     *
+     * @return string The minified & gzipped data
+     */
+    public function gzip($path = null, $level = 9)
+    {
+        $content = $this->execute($path);
+        $content = gzencode($content, $level, FORCE_GZIP);
+
+        // save to path
+        if ($path !== null) {
+            $this->save($content, $path);
+        }
+
+        return $content;
+    }
+
+    /**
+     * Minify the data & write it to a CacheItemInterface object.
+     *
+     * @param CacheItemInterface $item Cache item to write the data to
+     *
+     * @return CacheItemInterface Cache item with the minifier data
+     */
+    public function cache(CacheItemInterface $item)
+    {
+        $content = $this->execute();
+        $item->set($content);
+
+        return $item;
+    }
+
+    /**
+     * Minify the data.
+     *
+     * @param string[optional] $path Path to write the data to
+     *
+     * @return string The minified data
+     */
+    abstract public function execute($path = null);
+
+    /**
+     * Load data.
+     *
+     * @param string $data Either a path to a file or the content itself
+     *
+     * @return string
+     */
+    protected function load($data)
+    {
+        // check if the data is a file
+        if ($this->canImportFile($data)) {
+            $data = file_get_contents($data);
+
+            // strip BOM, if any
+            if (substr($data, 0, 3) == "\xef\xbb\xbf") {
+                $data = substr($data, 3);
+            }
+        }
+
+        return $data;
+    }
+
+    /**
+     * Save to file.
+     *
+     * @param string $content The minified data
+     * @param string $path    The path to save the minified data to
+     *
+     * @throws IOException
+     */
+    protected function save($content, $path)
+    {
+        $handler = $this->openFileForWriting($path);
+
+        $this->writeToFile($handler, $content);
+
+        @fclose($handler);
+    }
+
+    /**
+     * Register a pattern to execute against the source content.
+     *
+     * If $replacement is a string, it must be plain text. Placeholders like $1 or \2 don't work.
+     * If you need that functionality, use a callback instead.
+     *
+     * @param string          $pattern     PCRE pattern
+     * @param string|callable $replacement Replacement value for matched pattern
+     */
+    protected function registerPattern($pattern, $replacement = '')
+    {
+        // study the pattern, we'll execute it more than once
+        $pattern .= 'S';
+
+        $this->patterns[] = array($pattern, $replacement);
+    }
+
+    /**
+     * Both JS and CSS use the same form of multi-line comment, so putting the common code here.
+     */
+    protected function stripMultilineComments()
+    {
+        // First extract comments we want to keep, so they can be restored later
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier) {
+            $count = count($minifier->extracted);
+            $placeholder = '/*' . $count . '*/';
+            $minifier->extracted[$placeholder] = $match[0];
+
+            return $placeholder;
+        };
+        $this->registerPattern('/
+            # optional newline
+            \n?
+
+            # start comment
+            \/\*
+
+            # comment content
+            (?:
+                # either starts with an !
+                !
+            |
+                # or, after some number of characters which do not end the comment
+                (?:(?!\*\/).)*?
+
+                # there is either a @license or @preserve tag
+                @(?:license|preserve)
+            )
+
+            # then match to the end of the comment
+            .*?\*\/\n?
+
+            /ixs', $callback);
+
+        // Then strip all other comments
+        $this->registerPattern('/\/\*.*?\*\//s', '');
+    }
+
+    /**
+     * We can't "just" run some regular expressions against JavaScript: it's a
+     * complex language. E.g. having an occurrence of // xyz would be a comment,
+     * unless it's used within a string. Of you could have something that looks
+     * like a 'string', but inside a comment.
+     * The only way to accurately replace these pieces is to traverse the JS one
+     * character at a time and try to find whatever starts first.
+     *
+     * @param string $content The content to replace patterns in
+     *
+     * @return string The (manipulated) content
+     */
+    protected function replace($content)
+    {
+        $contentLength = strlen($content);
+        $output = '';
+        $processedOffset = 0;
+        $positions = array_fill(0, count($this->patterns), -1);
+        $matches = array();
+
+        while ($processedOffset < $contentLength) {
+            // find first match for all patterns
+            foreach ($this->patterns as $i => $pattern) {
+                list($pattern, $replacement) = $pattern;
+
+                // we can safely ignore patterns for positions we've unset earlier,
+                // because we know these won't show up anymore
+                if (array_key_exists($i, $positions) == false) {
+                    continue;
+                }
+
+                // no need to re-run matches that are still in the part of the
+                // content that hasn't been processed
+                if ($positions[$i] >= $processedOffset) {
+                    continue;
+                }
+
+                $match = null;
+                if (preg_match($pattern, $content, $match, PREG_OFFSET_CAPTURE, $processedOffset)) {
+                    $matches[$i] = $match;
+
+                    // we'll store the match position as well; that way, we
+                    // don't have to redo all preg_matches after changing only
+                    // the first (we'll still know where those others are)
+                    $positions[$i] = $match[0][1];
+                } else {
+                    // if the pattern couldn't be matched, there's no point in
+                    // executing it again in later runs on this same content;
+                    // ignore this one until we reach end of content
+                    unset($matches[$i], $positions[$i]);
+                }
+            }
+
+            // no more matches to find: everything's been processed, break out
+            if (!$matches) {
+                // output the remaining content
+                $output .= substr($content, $processedOffset);
+                break;
+            }
+
+            // see which of the patterns actually found the first thing (we'll
+            // only want to execute that one, since we're unsure if what the
+            // other found was not inside what the first found)
+            $matchOffset = min($positions);
+            $firstPattern = array_search($matchOffset, $positions);
+            $match = $matches[$firstPattern];
+
+            // execute the pattern that matches earliest in the content string
+            list(, $replacement) = $this->patterns[$firstPattern];
+
+            // add the part of the input between $processedOffset and the first match;
+            // that content wasn't matched by anything
+            $output .= substr($content, $processedOffset, $matchOffset - $processedOffset);
+            // add the replacement for the match
+            $output .= $this->executeReplacement($replacement, $match);
+            // advance $processedOffset past the match
+            $processedOffset = $matchOffset + strlen($match[0][0]);
+        }
+
+        return $output;
+    }
+
+    /**
+     * If $replacement is a callback, execute it, passing in the match data.
+     * If it's a string, just pass it through.
+     *
+     * @param string|callable $replacement Replacement value
+     * @param array           $match       Match data, in PREG_OFFSET_CAPTURE form
+     *
+     * @return string
+     */
+    protected function executeReplacement($replacement, $match)
+    {
+        if (!is_callable($replacement)) {
+            return $replacement;
+        }
+        // convert $match from the PREG_OFFSET_CAPTURE form to the form the callback expects
+        foreach ($match as &$matchItem) {
+            $matchItem = $matchItem[0];
+        }
+
+        return $replacement($match);
+    }
+
+    /**
+     * Strings are a pattern we need to match, in order to ignore potential
+     * code-like content inside them, but we just want all of the string
+     * content to remain untouched.
+     *
+     * This method will replace all string content with simple STRING#
+     * placeholder text, so we've rid all strings from characters that may be
+     * misinterpreted. Original string content will be saved in $this->extracted
+     * and after doing all other minifying, we can restore the original content
+     * via restoreStrings().
+     *
+     * @param string[optional] $chars
+     * @param string[optional] $placeholderPrefix
+     */
+    protected function extractStrings($chars = '\'"', $placeholderPrefix = '')
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier, $placeholderPrefix) {
+            // check the second index here, because the first always contains a quote
+            if ($match[2] === '') {
+                /*
+                 * Empty strings need no placeholder; they can't be confused for
+                 * anything else anyway.
+                 * But we still needed to match them, for the extraction routine
+                 * to skip over this particular string.
+                 */
+                return $match[0];
+            }
+
+            $count = count($minifier->extracted);
+            $placeholder = $match[1] . $placeholderPrefix . $count . $match[1];
+            $minifier->extracted[$placeholder] = $match[1] . $match[2] . $match[1];
+
+            return $placeholder;
+        };
+
+        /*
+         * The \\ messiness explained:
+         * * Don't count ' or " as end-of-string if it's escaped (has backslash
+         * in front of it)
+         * * Unless... that backslash itself is escaped (another leading slash),
+         * in which case it's no longer escaping the ' or "
+         * * So there can be either no backslash, or an even number
+         * * multiply all of that times 4, to account for the escaping that has
+         * to be done to pass the backslash into the PHP string without it being
+         * considered as escape-char (times 2) and to get it in the regex,
+         * escaped (times 2)
+         */
+        $this->registerPattern('/([' . $chars . '])(.*?(?<!\\\\)(\\\\\\\\)*+)\\1/s', $callback);
+    }
+
+    /**
+     * This method will restore all extracted data (strings, regexes) that were
+     * replaced with placeholder text in extract*(). The original content was
+     * saved in $this->extracted.
+     *
+     * @param string $content
+     *
+     * @return string
+     */
+    protected function restoreExtractedData($content)
+    {
+        if (!$this->extracted) {
+            // nothing was extracted, nothing to restore
+            return $content;
+        }
+
+        $content = strtr($content, $this->extracted);
+
+        $this->extracted = array();
+
+        return $content;
+    }
+
+    /**
+     * Check if the path is a regular file and can be read.
+     *
+     * @param string $path
+     *
+     * @return bool
+     */
+    protected function canImportFile($path)
+    {
+        $parsed = parse_url($path);
+        if (
+            // file is elsewhere
+            isset($parsed['host'])
+            // file responds to queries (may change, or need to bypass cache)
+            || isset($parsed['query'])
+        ) {
+            return false;
+        }
+
+        return strlen($path) < PHP_MAXPATHLEN && @is_file($path) && is_readable($path);
+    }
+
+    /**
+     * Attempts to open file specified by $path for writing.
+     *
+     * @param string $path The path to the file
+     *
+     * @return resource Specifier for the target file
+     *
+     * @throws IOException
+     */
+    protected function openFileForWriting($path)
+    {
+        if ($path === '' || ($handler = @fopen($path, 'w')) === false) {
+            throw new IOException('The file "' . $path . '" could not be opened for writing. Check if PHP has enough permissions.');
+        }
+
+        return $handler;
+    }
+
+    /**
+     * Attempts to write $content to the file specified by $handler. $path is used for printing exceptions.
+     *
+     * @param resource $handler The resource to write to
+     * @param string   $content The content to write
+     * @param string   $path    The path to the file (for exception printing only)
+     *
+     * @throws IOException
+     */
+    protected function writeToFile($handler, $content, $path = '')
+    {
+        if (
+            !is_resource($handler)
+            || ($result = @fwrite($handler, $content)) === false
+            || ($result < strlen($content))
+        ) {
+            throw new IOException('The file "' . $path . '" could not be written to. Check your disk space and file permissions.');
+        }
+    }
+
+    protected static function str_replace_first($search, $replace, $subject)
+    {
+        $pos = strpos($subject, $search);
+        if ($pos !== false) {
+            return substr_replace($subject, $replace, $pos, strlen($search));
+        }
+
+        return $subject;
+    }
+}