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PK!�# o,,
index.htmlnu�[���<html><body
bgcolor="#FFFFFF"></body></html>PK!x 9�NN"src/Abstraction/BasicException.phpnu�[���<?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 VDM\Minify\Abstraction;
/**
* Basic exception.
*
* Please report bugs on https://github.com/matthiasmullie/minify/issues
*
* @author Matthias Mullie
* @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
* @license MIT License
*/
abstract class BasicException extends \Exception
{
}
PK!��,PaBaBsrc/Abstraction/Minify.phpnu�[���<?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 VDM\Minify\Abstraction;
use VDM\Minify\Exceptions\IOException;
use VDM\Psr\Cache\CacheItemInterface;
/**
* Abstract minifier class.
*
* Please report bugs on https://github.com/matthiasmullie/minify/issues
*
* @author Matthias Mullie
* @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 of patterns to match.
*
* @var string[]
*/
protected $patterns = [];
/**
* 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 = [];
/**
* 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);
}
/**
* 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);
$matches = [];
while ($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 = [];
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((string) $subject, (string) $search);
if ($pos !== false) {
return substr_replace((string) $subject, (string) $replace,
$pos, strlen((string) $search));
}
return $subject;
}
}
PK!�# o,,src/Abstraction/index.htmlnu�[���<html><body
bgcolor="#FFFFFF"></body></html>PK!�d�emem src/Css.phpnu�[���<?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 VDM\Minify;
use VDM\Minify\Exceptions\FileImportException;
use VDM\Minify\Path\Converter;
use VDM\Minify\Path\Interfaces\ConverterInterface;
use VDM\Minify\Abstraction\Minify;
/**
* CSS minifier.
*
* Please report bugs on https://github.com/matthiasmullie/minify/issues
*
* @author Matthias Mullie
* @author Tijs Verkoyen
* @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
$matches = [];
foreach ($importRegexes as $importRegex) {
if (preg_match_all($importRegex, $content, $regexMatches,
PREG_SET_ORDER)) {
$matches = [...$matches, ...$regexMatches];
}
}
$search = [];
$replace = [];
// loop the matches
foreach ($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 = [];
$replace = [];
// loop the matches
foreach ($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 = [])
{
$content = '';
// loop CSS data (raw data and files)
foreach ($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
$matches = [];
foreach ($relativeRegexes as $relativeRegex) {
if (preg_match_all($relativeRegex, $content, $regexMatches,
PREG_SET_ORDER)) {
$matches = [...$matches, ...$regexMatches];
}
}
$search = [];
$replace = [];
// loop all urls
foreach ($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',
fn($match) => $colors[strtoupper((string) $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,
);
$callback = fn($match) => $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()
{
// 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('/\n?\/\*(!|.*?@license|.*?@preserve).*?\*\/\n?/s',
$callback);
$this->registerPattern('/\/\*.*?\*\//s',
'');
}
/**
* 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((string) $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((string) $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);
}
}
PK!���F��&src/Exceptions/FileImportException.phpnu�[���<?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 VDM\Minify\Exceptions;
use VDM\Minify\Abstraction\BasicException;
/**
* File Import Exception Class.
*
* @author Matthias Mullie
*/
class FileImportException extends BasicException
{
}
PK!'W�W�� src/Exceptions/IOException.phpnu�[���<?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 VDM\Minify\Exceptions;
use VDM\Minify\Abstraction\BasicException;
/**
* IO Exception Class.
*
* @author Matthias Mullie
*/
class IOException extends BasicException
{
}
PK!�# o,,src/Exceptions/index.htmlnu�[���<html><body
bgcolor="#FFFFFF"></body></html>PK!j�������src/JavaScript.phpnu�[���<?php
/**
* JavaScript 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 VDM\Minify;
use VDM\Minify\Abstraction\Minify;
/**
* JavaScript Minifier Class.
*
* Please report bugs on https://github.com/matthiasmullie/minify/issues
*
* @author Matthias Mullie
* @author Tijs Verkoyen
* @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
* @license MIT License
*/
class JavaScript extends Minify
{
/**
* Var-matching regex based on
http://stackoverflow.com/a/9337047/802993.
*
* Note that regular expressions using that bit must have the
PCRE_UTF8
* pattern modifier (/u) set.
*
* @internal
*
* @var string
*/
const REGEX_VARIABLE =
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/**
* Full list of JavaScript reserved words.
* Will be loaded from /data/js/keywords_reserved.txt.
*
* @see https://mathiasbynens.be/notes/reserved-keywords
*
* @var string[]
*/
protected $keywordsReserved = [
'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'
];
/**
* List of JavaScript reserved words that accept a <variable, value,
...>
* after them. Some end of lines are not the end of a statement, like
with
* these keywords.
*
* E.g.: we shouldn't insert a ; after this else
* else
* console.log('this is quite fine')
*
* Will be loaded from /data/js/keywords_before.txt
*
* @var string[]
*/
protected $keywordsBefore = [
'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'
];
/**
* List of JavaScript reserved words that accept a <variable, value,
...>
* before them. Some end of lines are not the end of a statement, like
when
* continued by one of these keywords on the newline.
*
* E.g.: we shouldn't insert a ; before this instanceof
* variable
* instanceof String
*
* Will be loaded from /data/js/keywords_after.txt
*
* @var string[]
*/
protected $keywordsAfter = [
'in',
'public',
'extends',
'private',
'protected',
'implements',
'instanceof'
];
/**
* List of all JavaScript operators.
*
* Will be loaded from /data/js/operators.txt
*
* @see
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
*
* @var string[]
*/
protected $operators = [
'+',
'-',
'*',
'/',
'%',
'=',
'+=',
'-=',
'*=',
'/=',
'%=',
'<<=',
'>>=',
'>>>=',
'&=',
'^=',
'|=',
'&',
'|',
'^',
'~',
'<<',
'>>',
'>>>',
'==',
'===',
'!=',
'!==',
'>',
'<',
'>=',
'<=',
'&&',
'||',
'!',
'.',
'[',
']',
'?',
':',
',',
';',
'(',
')',
'{',
'}'
];
/**
* List of JavaScript operators that accept a <variable, value,
...> after
* them. Some end of lines are not the end of a statement, like with
these
* operators.
*
* Note: Most operators are fine, we've only removed ++ and --.
* ++ & -- have to be joined with the value they're
in-/decrementing.
*
* Will be loaded from /data/js/operators_before.txt
*
* @see
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
*
* @var string[]
*/
protected $operatorsBefore = [
'+',
'-',
'*',
'/',
'%',
'=',
'+=',
'-=',
'*=',
'/=',
'%=',
'<<=',
'>>=',
'>>>=',
'&=',
'^=',
'|=',
'&',
'|',
'^',
'~',
'<<',
'>>',
'>>>',
'==',
'===',
'!=',
'!==',
'>',
'<',
'>=',
'<=',
'&&',
'||',
'!',
'.',
'[',
'?',
':',
',',
';',
'(',
'{',
];
/**
* List of JavaScript operators that accept a <variable, value,
...> before
* them. Some end of lines are not the end of a statement, like when
* continued by one of these operators on the newline.
*
* Note: Most operators are fine, we've only removed ), ], ++, --,
! and ~.
* There can't be a newline separating ! or ~ and whatever it is
negating.
* ++ & -- have to be joined with the value they're
in-/decrementing.
* ) & ] are "special" in that they have lots or
usecases. () for example
* is used for function calls, for grouping, in if () and for (), ...
*
* Will be loaded from /data/js/operators_after.txt
*
* @see
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
*
* @var string[]
*/
protected $operatorsAfter = [
'+',
'-',
'*',
'/',
'%',
'=',
'+=',
'-=',
'*=',
'/=',
'%=',
'<<=',
'>>=',
'>>>=',
'&=',
'^=',
'|=',
'&',
'|',
'^',
'<<',
'>>',
'>>>',
'==',
'===',
'!=',
'!==',
'>',
'<',
'>=',
'<=',
'&&',
'||',
'.',
'[',
']',
'?',
':',
',',
';',
'(',
')',
'}',
];
/**
* Minify the data.
* Perform JS optimizations.
*
* @param string[optional] $path Path to write the data to
*
* @return string The minified data
*/
public function execute($path = null)
{
$content = '';
/*
* Let's first take out strings, comments and regular
expressions.
* All of these can contain JS code-like characters, and we should
make
* sure any further magic ignores anything inside of these.
*
* Consider this example, where we should not strip any
whitespace:
* var str = "a test";
*
* Comments will be removed altogether, strings and regular
expressions
* will be replaced by placeholder text, which we'll restore
later.
*/
$this->extractStrings('\'"`');
$this->stripComments();
$this->extractRegex();
// loop files
foreach ($this->data as $source => $js) {
// take out strings, comments & regex (for which we've
registered
// the regexes just a few lines earlier)
$js = $this->replace($js);
$js = $this->propertyNotation($js);
$js = $this->shortenBools($js);
$js = $this->stripWhitespace($js);
// combine js: separating the scripts by a ;
$content .= $js . ';';
}
// clean up leftover `;`s from the combination of multiple scripts
$content = ltrim($content, ';');
$content = (string) substr($content, 0, -1);
/*
* Earlier, we extracted strings & regular expressions and
replaced them
* with placeholder text. This will restore them.
*/
$content = $this->restoreExtractedData($content);
return $content;
}
/**
* Strip comments from source code.
*/
protected function stripComments()
{
// PHP only supports $this inside anonymous functions since 5.4
$minifier = $this;
$callback = function ($match) use ($minifier) {
if (
substr((string) $match[2], 0, 1) === '!' ||
strpos((string) $match[2], '@license') !== false
||
strpos((string) $match[2], '@preserve') !==
false
) {
// preserve multi-line comments that start with /*!
// or contain @license or @preserve annotations
$count = count($minifier->extracted);
$placeholder = '/*' . $count . '*/';
$minifier->extracted[$placeholder] = $match[0];
return $match[1] . $placeholder . $match[3];
}
return $match[1] . $match[3];
};
// multi-line comments
$this->registerPattern('/(\n?)\/\*(.*?)\*\/(\n?)/s',
$callback);
// single-line comments
$this->registerPattern('/\/\/.*$/m', '');
}
/**
* JS can have /-delimited regular expressions, like:
/ab+c/.match(string).
*
* The content inside the regex can contain characters that may be
confused
* for JS code: e.g. it could contain whitespace it needs to match
& we
* don't want to strip whitespace in there.
*
* The regex can be pretty simple: we don't have to care about
comments,
* (which also use slashes) because stripComments() will have stripped
those
* already.
*
* This method will replace all string content with simple REGEX#
* placeholder text, so we've rid all regular expressions from
characters
* that may be misinterpreted. Original regex content will be saved in
* $this->extracted and after doing all other minifying, we can
restore the
* original content via restoreRegex()
*/
protected function extractRegex()
{
// 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;
};
// match all chars except `/` and `\`
// `\` is allowed though, along with whatever char follows (which
is the
// one being escaped)
// this should allow all chars, except for an unescaped `/` (= the
one
// closing the regex)
// then also ignore bare `/` inside `[]`, where they don't
need to be
// escaped: anything inside `[]` can be ignored safely
$pattern =
'\\/(?!\*)(?:[^\\[\\/\\\\\n\r]++|(?:\\\\.)++|(?:\\[(?:[^\\]\\\\\n\r]++|(?:\\\\.)++)++\\])++)++\\/[gimuy]*';
// a regular expression can only be followed by a few operators or
some
// of the RegExp methods (a `\` followed by a variable or value is
// likely part of a division, not a regex)
$keywords = array('do', 'in', 'new',
'else', 'throw', 'yield', 'delete',
'return', 'typeof');
$before = '(^|[=:,;\+\-\*\?\/\}\(\{\[&\|!]|' .
implode('|', $keywords) . ')\s*';
$propertiesAndMethods = array(
//
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#Properties_2
'constructor',
'flags',
'global',
'ignoreCase',
'multiline',
'source',
'sticky',
'unicode',
//
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#Methods_2
'compile(',
'exec(',
'test(',
'toSource(',
'toString(',
);
$delimiters = array_fill(0, count($propertiesAndMethods),
'/');
$propertiesAndMethods = array_map('preg_quote',
$propertiesAndMethods, $delimiters);
$after = '(?=\s*([\.,;:\)\}&\|+]|\/\/|$|\.(' .
implode('|', $propertiesAndMethods) . ')))';
$this->registerPattern('/' . $before . '\K'
. $pattern . $after . '/', $callback);
// regular expressions following a `)` are rather annoying to
detect...
// quite often, `/` after `)` is a division operator & if it
happens to
// be followed by another one (or a comment), it is likely to be
// confused for a regular expression
// however, it's perfectly possible for a regex to follow a
`)`: after
// a single-line `if()`, `while()`, ... statement, for example
// since, when they occur like that, they're always the start
of a
// statement, there's only a limited amount of ways they can
be useful:
// by calling the regex methods directly
// if a regex following `)` is not followed by `.<property or
method>`,
// it's quite likely not a regex
$before = '\)\s*';
$after = '(?=\s*\.(' . implode('|',
$propertiesAndMethods) . '))';
$this->registerPattern('/' . $before . '\K'
. $pattern . $after . '/', $callback);
// 1 more edge case: a regex can be followed by a lot more
operators or
// keywords if there's a newline (ASI) in between, where the
operator
// actually starts a new statement
// (https://github.com/matthiasmullie/minify/issues/56)
$operators =
$this->getOperatorsForRegex($this->operatorsBefore, '/');
$operators +=
$this->getOperatorsForRegex($this->keywordsReserved, '/');
$after = '(?=\s*\n\s*(' . implode('|',
$operators) . '))';
$this->registerPattern('/' . $pattern . $after .
'/', $callback);
}
/**
* Strip whitespace.
*
* We won't strip *all* whitespace, but as much as possible. The
thing that
* we'll preserve are newlines we're unsure about.
* JavaScript doesn't require statements to be terminated with a
semicolon.
* It will automatically fix missing semicolons with ASI (automatic
semi-
* colon insertion) at the end of line causing errors (without
semicolon.)
*
* Because it's sometimes hard to tell if a newline is part of a
statement
* that should be terminated or not, we'll just leave some of them
alone.
*
* @param string $content The content to strip the whitespace for
*
* @return string
*/
protected function stripWhitespace($content)
{
// uniform line endings, make them all line feed
$content = str_replace(array("\r\n", "\r"),
"\n", $content);
// collapse all non-line feed whitespace into a single space
$content = preg_replace('/[^\S\n]+/', ' ',
$content);
// strip leading & trailing whitespace
$content = str_replace(array(" \n", "\n "),
"\n", $content);
// collapse consecutive line feeds into just 1
$content = preg_replace('/\n+/', "\n",
$content);
$operatorsBefore =
$this->getOperatorsForRegex($this->operatorsBefore, '/');
$operatorsAfter =
$this->getOperatorsForRegex($this->operatorsAfter, '/');
$operators = $this->getOperatorsForRegex($this->operators,
'/');
$keywordsBefore =
$this->getKeywordsForRegex($this->keywordsBefore, '/');
$keywordsAfter =
$this->getKeywordsForRegex($this->keywordsAfter, '/');
// strip whitespace that ends in (or next line begin with) an
operator
// that allows statements to be broken up over multiple lines
unset($operatorsBefore['+'],
$operatorsBefore['-'], $operatorsAfter['+'],
$operatorsAfter['-']);
$content = preg_replace(
array(
'/(' . implode('|', $operatorsBefore) .
')\s+/',
'/\s+(' . implode('|', $operatorsAfter)
. ')/',
),
'\\1',
$content
);
// make sure + and - can't be mistaken for, or joined into ++
and --
$content = preg_replace(
array(
'/(?<![\+\-])\s*([\+\-])(?![\+\-])/',
'/(?<![\+\-])([\+\-])\s*(?![\+\-])/',
),
'\\1',
$content
);
// collapse whitespace around reserved words into single space
$content = preg_replace('/(^|[;\}\s])\K(' .
implode('|', $keywordsBefore) . ')\s+/', '\\2
', $content);
$content = preg_replace('/\s+(' . implode('|',
$keywordsAfter) . ')(?=([;\{\s]|$))/', ' \\1',
$content);
/*
* We didn't strip whitespace after a couple of operators
because they
* could be used in different contexts and we can't be sure
it's ok to
* strip the newlines. However, we can safely strip any non-line
feed
* whitespace that follows them.
*/
$operatorsDiffBefore = array_diff($operators, $operatorsBefore);
$operatorsDiffAfter = array_diff($operators, $operatorsAfter);
$content = preg_replace('/(' . implode('|',
$operatorsDiffBefore) . ')[^\S\n]+/', '\\1',
$content);
$content = preg_replace('/[^\S\n]+(' .
implode('|', $operatorsDiffAfter) . ')/',
'\\1', $content);
/*
* Whitespace after `return` can be omitted in a few occasions
* (such as when followed by a string or regex)
* Same for whitespace in between `)` and `{`, or between `{` and
some
* keywords.
*/
$content =
preg_replace('/\breturn\s+(["\'\/\+\-])/',
'return$1', $content);
$content = preg_replace('/\)\s+\{/', '){',
$content);
$content = preg_replace('/}\n(else|catch|finally)\b/',
'}$1', $content);
/*
* Get rid of double semicolons, except where they can be used
like:
* "for(v=1,_=b;;)", "for(v=1;;v++)" or
"for(;;ja||(ja=true))".
* I'll safeguard these double semicolons inside for-loops by
* temporarily replacing them with an invalid condition: they
won't have
* a double semicolon and will be easy to spot to restore
afterwards.
*/
$content = preg_replace('/\bfor\(([^;]*);;([^;]*)\)/',
'for(\\1;-;\\2)', $content);
$content = preg_replace('/;+/', ';',
$content);
$content = preg_replace('/\bfor\(([^;]*);-;([^;]*)\)/',
'for(\\1;;\\2)', $content);
/*
* Next, we'll be removing all semicolons where ASI kicks in.
* for-loops however, can have an empty body (ending in only a
* semicolon), like: `for(i=1;i<3;i++);`, of `for(i in list);`
* Here, nothing happens during the loop; it's just used to
keep
* increasing `i`. With that ; omitted, the next line would be
expected
* to be the for-loop's body... Same goes for while loops.
* I'm going to double that semicolon (if any) so after the
next line,
* which strips semicolons here & there, we're still left
with this one.
* Note the special recursive construct in the three inner parts of
the for:
* (\{([^\{\}]*(?-2))*[^\{\}]*\})? - it is intended to match
inline
* functions bodies, e.g.: i<arr.map(function(e){return
e}).length.
* Also note that the construct is applied only once and
multiplied
* for each part of the for, otherwise it risks a catastrophic
backtracking.
* The limitation is that it will not allow closures in more than
one
* of the three parts for a specific for() case.
* REGEX throwing catastrophic backtracking: $content =
preg_replace('/(for\([^;\{]*(\{([^\{\}]*(?-2))*[^\{\}]*\})?[^;\{]*;[^;\{]*(\{([^\{\}]*(?-2))*[^\{\}]*\})?[^;\{]*;[^;\{]*(\{([^\{\}]*(?-2))*[^\{\}]*\})?[^;\{]*\));(\}|$)/s',
'\\1;;\\8', $content);
*/
$content =
preg_replace('/(for\((?:[^;\{]*|[^;\{]*function[^;\{]*(\{([^\{\}]*(?-2))*[^\{\}]*\})?[^;\{]*);[^;\{]*;[^;\{]*\));(\}|$)/s',
'\\1;;\\4', $content);
$content =
preg_replace('/(for\([^;\{]*;(?:[^;\{]*|[^;\{]*function[^;\{]*(\{([^\{\}]*(?-2))*[^\{\}]*\})?[^;\{]*);[^;\{]*\));(\}|$)/s',
'\\1;;\\4', $content);
$content =
preg_replace('/(for\([^;\{]*;[^;\{]*;(?:[^;\{]*|[^;\{]*function[^;\{]*(\{([^\{\}]*(?-2))*[^\{\}]*\})?[^;\{]*)\));(\}|$)/s',
'\\1;;\\4', $content);
$content =
preg_replace('/(for\([^;\{]+\s+in\s+[^;\{]+\));(\}|$)/s',
'\\1;;\\2', $content);
/*
* Do the same for the if's that don't have a body but
are followed by ;}
*/
$content = preg_replace('/(\bif\s*\([^{;]*\));\}/s',
'\\1;;}', $content);
/*
* Below will also keep `;` after a `do{}while();` along with
`while();`
* While these could be stripped after do-while, detecting this
* distinction is cumbersome, so I'll play it safe and make
sure `;`
* after any kind of `while` is kept.
*/
$content = preg_replace('/(while\([^;\{]+\));(\}|$)/s',
'\\1;;\\2', $content);
/*
* We also can't strip empty else-statements. Even though
they're
* useless and probably shouldn't be in the code in the first
place, we
* shouldn't be stripping the `;` that follows it as it breaks
the code.
* We can just remove those useless else-statements completely.
*
* @see https://github.com/matthiasmullie/minify/issues/91
*/
$content = preg_replace('/else;/s', '',
$content);
/*
* We also don't really want to terminate statements followed
by closing
* curly braces (which we've ignored completely up until now)
or end-of-
* script: ASI will kick in here & we're all about
minifying.
* Semicolons at beginning of the file don't make any sense
either.
*/
$content = preg_replace('/;(\}|$)/s', '\\1',
$content);
$content = ltrim($content, ';');
// get rid of remaining whitespace af beginning/end
return trim($content);
}
/**
* We'll strip whitespace around certain operators with regular
expressions.
* This will prepare the given array by escaping all characters.
*
* @param string[] $operators
* @param string $delimiter
*
* @return string[]
*/
protected function getOperatorsForRegex(array $operators, $delimiter =
'/')
{
// escape operators for use in regex
$delimiters = array_fill(0, count($operators), $delimiter);
$escaped = array_map('preg_quote', $operators,
$delimiters);
$operators = array_combine($operators, $escaped);
// ignore + & - for now, they'll get special treatment
unset($operators['+'], $operators['-']);
// dot can not just immediately follow a number; it can be confused
for
// decimal point, or calling a method on it, e.g. 42 .toString()
$operators['.'] = '(?<![0-9]\s)\.';
// don't confuse = with other assignment shortcuts (e.g. +=)
$chars = preg_quote('+-*\=<>%&|', $delimiter);
$operators['='] = '(?<![' . $chars .
'])\=';
return $operators;
}
/**
* We'll strip whitespace around certain keywords with regular
expressions.
* This will prepare the given array by escaping all characters.
*
* @param string[] $keywords
* @param string $delimiter
*
* @return string[]
*/
protected function getKeywordsForRegex(array $keywords, $delimiter =
'/')
{
// escape keywords for use in regex
$delimiter = array_fill(0, count($keywords), $delimiter);
$escaped = array_map('preg_quote', $keywords,
$delimiter);
// add word boundaries
array_walk($keywords, fn($value) => '\b' . $value .
'\b');
$keywords = array_combine($keywords, $escaped);
return $keywords;
}
/**
* Replaces all occurrences of array['key'] by array.key.
*
* @param string $content
*
* @return string
*/
protected function propertyNotation($content)
{
// PHP only supports $this inside anonymous functions since 5.4
$minifier = $this;
$keywords = $this->keywordsReserved;
$callback = function ($match) use ($minifier, $keywords) {
$property = trim($minifier->extracted[$match[1]],
'\'"');
/*
* Check if the property is a reserved keyword. In this context
(as
* property of an object literal/array) it shouldn't
matter, but IE8
* freaks out with "Expected identifier".
*/
if (in_array($property, $keywords)) {
return $match[0];
}
/*
* See if the property is in a variable-like format (e.g.
* array['key-here'] can't be replaced by
array.key-here since '-'
* is not a valid character there.
*/
if (!preg_match('/^' . $minifier::REGEX_VARIABLE .
'$/u', $property)) {
return $match[0];
}
return '.' . $property;
};
/*
* Figure out if previous character is a variable name (of the
array
* we want to use property notation on) - this is to make sure
* standalone ['value'] arrays aren't confused for
keys-of-an-array.
* We can (and only have to) check the last character, because
PHP's
* regex implementation doesn't allow unfixed-length
look-behind
* assertions.
*/
preg_match('/(\[[^\]]+\])[^\]]*$/',
static::REGEX_VARIABLE, $previousChar);
$previousChar = $previousChar[1];
/*
* Make sure word preceding the ['value'] is not a
keyword, e.g.
* return['x']. Because -again- PHP's regex
implementation doesn't allow
* unfixed-length look-behind assertions, I'm just going to do
a lot of
* separate look-behind assertions, one for each keyword.
*/
$keywords = $this->getKeywordsForRegex($keywords);
$keywords = '(?<!' . implode(')(?<!',
$keywords) . ')';
return preg_replace_callback('/(?<=' . $previousChar .
'|\])' . $keywords .
'\[\s*(([\'"])[0-9]+\\2)\s*\]/u', $callback,
$content);
}
/**
* Replaces true & false by !0 and !1.
*
* @param string $content
*
* @return string
*/
protected function shortenBools($content)
{
/*
* 'true' or 'false' could be used as property
names (which may be
* followed by whitespace) - we must not replace those!
* Since PHP doesn't allow variable-length (to account for
the
* whitespace) lookbehind assertions, I need to capture the
leading
* character and check if it's a `.`
*/
$callback = function ($match) {
if (trim((string) $match[1]) === '.') {
return $match[0];
}
return $match[1] . ($match[2] === 'true' ?
'!0' : '!1');
};
$content =
preg_replace_callback('/(^|.\s*)\b(true|false)\b(?!:)/',
$callback, $content);
// for(;;) is exactly the same as while(true), but shorter :)
$content = preg_replace('/\bwhile\(!0\){/',
'for(;;){', $content);
// now make sure we didn't turn any do ... while(true) into do
... for(;;)
preg_match_all('/\bdo\b/', $content, $dos,
PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
// go backward to make sure positional offsets aren't altered
when $content changes
$dos = array_reverse($dos);
foreach ($dos as $do) {
$offsetDo = $do[0][1];
// find all `while` (now `for`) following `do`: one of those
must be
// associated with the `do` and be turned back into `while`
preg_match_all('/\bfor\(;;\)/', $content, $whiles,
PREG_OFFSET_CAPTURE | PREG_SET_ORDER, $offsetDo);
foreach ($whiles as $while) {
$offsetWhile = $while[0][1];
$open = substr_count($content, '{', $offsetDo,
$offsetWhile - $offsetDo);
$close = substr_count($content, '}', $offsetDo,
$offsetWhile - $offsetDo);
if ($open === $close) {
// only restore `while` if amount of `{` and `}` are
the same;
// otherwise, that `for` isn't associated with
this `do`
$content = substr_replace($content,
'while(!0)', $offsetWhile, strlen('for(;;)'));
break;
}
}
}
return $content;
}
}
PK!d-�zzsrc/Path/Converter.phpnu�[���<?php
/**
* Convert paths relative from 1 file to another.
*
* E.g.
* ../../images/icon.jpg relative to /css/imports/icons.css
* becomes
* ../images/icon.jpg relative to /css/minified.css
*
* Please report bugs on
https://github.com/matthiasmullie/path-converter/issues
*
* @author Matthias Mullie <pathconverter@mullie.eu>
* @copyright Copyright (c) 2015, Matthias Mullie. All rights reserved
* @license MIT License
*/
namespace VDM\Minify\Path;
use VDM\Minify\Path\Interfaces\ConverterInterface;
class Converter implements ConverterInterface
{
/**
* @var string
*/
protected $from;
/**
* @var string
*/
protected $to;
/**
* @param string $from The original base path (directory, not file!)
* @param string $to The new base path (directory, not file!)
* @param string $root Root directory (defaults to `getcwd`)
*/
public function __construct($from, $to, $root = '')
{
$shared = $this->shared($from, $to);
if ($shared === '') {
// when both paths have nothing in common, one of them is
probably
// absolute while the other is relative
$root = $root ?: getcwd();
$from = strpos($from, $root) === 0 ? $from :
preg_replace('/\/+/', '/', $root . '/' .
$from);
$to = strpos($to, $root) === 0 ? $to :
preg_replace('/\/+/', '/', $root . '/' .
$to);
// or traveling the tree via `..`
// attempt to resolve path, or assume it's fine if it
doesn't exist
$from = @realpath($from) ?: $from;
$to = @realpath($to) ?: $to;
}
$from = $this->dirname($from);
$to = $this->dirname($to);
$from = $this->normalize($from);
$to = $this->normalize($to);
$this->from = $from;
$this->to = $to;
}
/**
* Normalize path.
*
* @param string $path
*
* @return string
*/
protected function normalize($path)
{
// deal with different operating systems' directory structure
$path = rtrim(str_replace(DIRECTORY_SEPARATOR, '/',
$path), '/');
// remove leading current directory.
if (substr($path, 0, 2) === './') {
$path = substr($path, 2);
}
// remove references to current directory in the path.
$path = str_replace('/./', '/', $path);
/*
* Example:
*
/home/forkcms/frontend/cache/compiled_templates/../../core/layout/css/../images/img.gif
* to
* /home/forkcms/frontend/core/layout/images/img.gif
*/
do {
$path = preg_replace('/[^\/]+(?<!\.\.)\/\.\.\//',
'', $path, -1, $count);
} while ($count);
return $path;
}
/**
* Figure out the shared path of 2 locations.
*
* Example:
* /home/forkcms/frontend/core/layout/images/img.gif
* and
* /home/forkcms/frontend/cache/minified_css
* share
* /home/forkcms/frontend
*
* @param string $path1
* @param string $path2
*
* @return string
*/
protected function shared($path1, $path2)
{
// $path could theoretically be empty (e.g. no path is given), in
which
// case it shouldn't expand to array(''), which
would compare to one's
// root /
$path1 = $path1 ? explode('/', $path1) : [];
$path2 = $path2 ? explode('/', $path2) : [];
$shared = [];
// compare paths & strip identical ancestors
foreach ($path1 as $i => $chunk) {
if (isset($path2[$i]) && $path1[$i] == $path2[$i]) {
$shared[] = $chunk;
} else {
break;
}
}
return implode('/', $shared);
}
/**
* Convert paths relative from 1 file to another.
*
* E.g.
* ../images/img.gif relative to
/home/forkcms/frontend/core/layout/css
* should become:
* ../../core/layout/images/img.gif relative to
* /home/forkcms/frontend/cache/minified_css
*
* @param string $path The relative path that needs to be converted
*
* @return string The new relative path
*/
public function convert($path)
{
// quit early if conversion makes no sense
if ($this->from === $this->to) {
return $path;
}
$path = $this->normalize($path);
// if we're not dealing with a relative path, just return
absolute
if (strpos($path, '/') === 0) {
return $path;
}
// normalize paths
$path = $this->normalize($this->from . '/' .
$path);
// strip shared ancestor paths
$shared = $this->shared($path, $this->to);
$path = mb_substr($path, mb_strlen($shared));
$to = mb_substr($this->to, mb_strlen($shared));
// add .. for every directory that needs to be traversed to new
path
$to = str_repeat('../',
count(array_filter(explode('/', $to))));
return $to . ltrim($path, '/');
}
/**
* Attempt to get the directory name from a path.
*
* @param string $path
*
* @return string
*/
protected function dirname($path)
{
if (@is_file($path)) {
return dirname($path);
}
if (@is_dir($path)) {
return rtrim($path, '/');
}
// no known file/dir, start making assumptions
// ends in / = dir
if (mb_substr($path, -1) === '/') {
return rtrim($path, '/');
}
// has a dot in the name, likely a file
if (preg_match('/.*\..*$/', basename($path)) !== 0) {
return dirname($path);
}
// you're on your own here!
return $path;
}
}
PK!�>�7 *src/Path/Interfaces/ConverterInterface.phpnu�[���<?php
/**
* Convert file paths.
*
* Please report bugs on
https://github.com/matthiasmullie/path-converter/issues
*
* @author Matthias Mullie <pathconverter@mullie.eu>
* @copyright Copyright (c) 2015, Matthias Mullie. All rights reserved
* @license MIT License
*/
namespace VDM\Minify\Path\Interfaces;
interface ConverterInterface
{
/**
* Convert file paths.
*
* @param string $path The path to be converted
*
* @return string The new path
*/
public function convert($path);
}
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