Update JShrink
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@ -74,6 +74,11 @@ class Minifier
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*/
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protected $options;
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/**
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* These characters are used to define strings.
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*/
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protected $stringDelimiters = ['\'', '"', '`'];
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/**
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* Contains the default options for minification. This array is merged with
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* the one passed in by the user to create the request specific set of
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@ -115,9 +120,7 @@ class Minifier
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unset($jshrink);
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return $js;
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} catch (\Exception $e) {
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if (isset($jshrink)) {
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// Since the breakdownScript function probably wasn't finished
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// we clean it out before discarding it.
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@ -176,12 +179,11 @@ class Minifier
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protected function loop()
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{
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while ($this->a !== false && !is_null($this->a) && $this->a !== '') {
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switch ($this->a) {
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// new lines
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case "\n":
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// if the next line is something that can't stand alone preserve the newline
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if (strpos('(-+{[@', $this->b) !== false) {
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if (strpos('(-+[@', $this->b) !== false) {
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echo $this->a;
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$this->saveString();
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break;
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@ -189,14 +191,17 @@ class Minifier
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// if B is a space we skip the rest of the switch block and go down to the
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// string/regex check below, resetting $this->b with getReal
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if($this->b === ' ')
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if ($this->b === ' ') {
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break;
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}
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// otherwise we treat the newline like a space
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// no break
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case ' ':
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if(static::isAlphaNumeric($this->b))
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if (static::isAlphaNumeric($this->b)) {
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echo $this->a;
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}
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$this->saveString();
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break;
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@ -217,9 +222,11 @@ class Minifier
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break;
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case ' ':
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if(!static::isAlphaNumeric($this->a))
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if (!static::isAlphaNumeric($this->a)) {
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break;
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}
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// no break
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default:
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// check for some regex that breaks stuff
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if ($this->a === '/' && ($this->b === '\'' || $this->b === '"')) {
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@ -236,8 +243,9 @@ class Minifier
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// do reg check of doom
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$this->b = $this->getReal();
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if(($this->b == '/' && strpos('(,=:[!&|?', $this->a) !== false))
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if (($this->b == '/' && strpos('(,=:[!&|?', $this->a) !== false)) {
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$this->saveRegex();
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}
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}
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}
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@ -267,7 +275,7 @@ class Minifier
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$char = $this->c;
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unset($this->c);
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// Otherwise we start pulling from the input.
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// Otherwise we start pulling from the input.
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} else {
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$char = substr($this->input, $this->index, 1);
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@ -282,9 +290,9 @@ class Minifier
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// Normalize all whitespace except for the newline character into a
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// standard space.
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if($char !== "\n" && ord($char) < 32)
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if ($char !== "\n" && ord($char) < 32) {
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return ' ';
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}
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return $char;
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}
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@ -312,10 +320,13 @@ class Minifier
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$this->c = $this->getChar();
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if ($this->c === '/') {
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return $this->processOneLineComments($startIndex);
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$this->processOneLineComments($startIndex);
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return $this->getReal();
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} elseif ($this->c === '*') {
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return $this->processMultiLineComments($startIndex);
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$this->processMultiLineComments($startIndex);
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return $this->getReal();
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}
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return $char;
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@ -325,8 +336,8 @@ class Minifier
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* Removed one line comments, with the exception of some very specific types of
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* conditional comments.
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*
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* @param int $startIndex The index point where "getReal" function started
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* @return string
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* @param int $startIndex The index point where "getReal" function started
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* @return void
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*/
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protected function processOneLineComments($startIndex)
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{
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@ -335,17 +346,12 @@ class Minifier
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// kill rest of line
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$this->getNext("\n");
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unset($this->c);
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if ($thirdCommentString == '@') {
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$endPoint = $this->index - $startIndex;
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unset($this->c);
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$char = "\n" . substr($this->input, $startIndex, $endPoint);
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} else {
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// first one is contents of $this->c
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$this->getChar();
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$char = $this->getChar();
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$this->c = "\n" . substr($this->input, $startIndex, $endPoint);
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}
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return $char;
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}
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/**
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@ -353,7 +359,7 @@ class Minifier
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* Conditional comments and "license" style blocks are preserved.
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*
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* @param int $startIndex The index point where "getReal" function started
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* @return bool|string False if there's no character
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* @return void
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* @throws \RuntimeException Unclosed comments will throw an error
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*/
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protected function processMultiLineComments($startIndex)
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@ -363,14 +369,13 @@ class Minifier
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// kill everything up to the next */ if it's there
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if ($this->getNext('*/')) {
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$this->getChar(); // get *
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$this->getChar(); // get /
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$char = $this->getChar(); // get next real character
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// Now we reinsert conditional comments and YUI-style licensing comments
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if (($this->options['flaggedComments'] && $thirdCommentString === '!')
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|| ($thirdCommentString === '@') ) {
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|| ($thirdCommentString === '@')) {
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// If conditional comments or flagged comments are not the first thing in the script
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// we need to echo a and fill it with a space before moving on.
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@ -387,21 +392,20 @@ class Minifier
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$endPoint = ($this->index - 1) - $startIndex;
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echo substr($this->input, $startIndex, $endPoint);
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return $char;
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}
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$this->c = $char;
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return;
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}
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} else {
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$char = false;
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}
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if($char === false)
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if ($char === false) {
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throw new \RuntimeException('Unclosed multiline comment at position: ' . ($this->index - 2));
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}
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// if we're here c is part of the comment and therefore tossed
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if(isset($this->c))
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unset($this->c);
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return $char;
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$this->c = $char;
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}
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/**
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@ -418,9 +422,9 @@ class Minifier
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$pos = strpos($this->input, $string, $this->index);
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// If it's not there return false.
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if($pos === false)
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if ($pos === false) {
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return false;
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}
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// Adjust position of index to jump ahead to the asked for string
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$this->index = $pos;
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@ -444,7 +448,7 @@ class Minifier
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$this->a = $this->b;
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// If this isn't a string we don't need to do anything.
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if ($this->a !== "'" && $this->a !== '"') {
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if (!in_array($this->a, $this->stringDelimiters)) {
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return;
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}
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@ -473,7 +477,11 @@ class Minifier
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// character, so those will be treated just fine using the switch
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// block below.
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case "\n":
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throw new \RuntimeException('Unclosed string at position: ' . $startpos );
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if ($stringType === '`') {
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echo $this->a;
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} else {
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throw new \RuntimeException('Unclosed string at position: ' . $startpos);
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}
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break;
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// Escaped characters get picked up here. If it's an escaped new line it's not really needed
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@ -513,16 +521,18 @@ class Minifier
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echo $this->a . $this->b;
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while (($this->a = $this->getChar()) !== false) {
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if($this->a === '/')
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if ($this->a === '/') {
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break;
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}
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if ($this->a === '\\') {
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echo $this->a;
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$this->a = $this->getChar();
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}
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if($this->a === "\n")
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if ($this->a === "\n") {
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throw new \RuntimeException('Unclosed regex pattern at position: ' . $this->index);
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}
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echo $this->a;
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}
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@ -583,5 +593,4 @@ class Minifier
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return $js;
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}
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}
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@ -1,4 +1,4 @@
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curl https://codeload.github.com/tedious/JShrink/tar.gz/v1.1.0 -o JShrink-1.1.0.tar.gz
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tar xzf JShrink-1.1.0.tar.gz --strip-components 1 JShrink-1.1.0/LICENSE
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tar xzf JShrink-1.1.0.tar.gz --strip-components 3 JShrink-1.1.0/src/JShrink/Minifier.php
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rm JShrink-1.1.0.tar.gz
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curl https://codeload.github.com/tedious/JShrink/tar.gz/v1.3.0 -o JShrink-1.3.0.tar.gz
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tar xzf JShrink-1.3.0.tar.gz --strip-components 1 JShrink-1.3.0/LICENSE
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tar xzf JShrink-1.3.0.tar.gz --strip-components 3 JShrink-1.3.0/src/JShrink/Minifier.php
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rm JShrink-1.3.0.tar.gz
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