diff --git a/include/cssmin.class.php b/include/cssmin.class.php deleted file mode 100644 index 65559bc86..000000000 --- a/include/cssmin.class.php +++ /dev/null @@ -1,35 +0,0 @@ - - * - * 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. - * -- - * - * @package CssMin - * @link http://code.google.com/p/cssmin/ - * @author Joe Scylla - * @copyright 2008 - 2011 Joe Scylla - * @license http://opensource.org/licenses/mit-license.php MIT License - * @version 3.0.1 - */ - abstract class aCssToken { abstract public function __toString(); } abstract class aCssRulesetStartToken extends aCssToken { } abstract class aCssRulesetEndToken extends aCssToken { public function __toString() { return "}"; } } abstract class aCssParserPlugin { protected $configuration = array(); protected $parser = null; protected $buffer = ""; public function __construct(CssParser $parser, array $configuration = null) { $this->configuration = $configuration; $this->parser = $parser; } abstract public function getTriggerChars(); abstract public function getTriggerStates(); abstract public function parse($index, $char, $previousChar, $state); } abstract class aCssMinifierPlugin { protected $configuration = array(); protected $minifier = null; public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->configuration = $configuration; $this->minifier = $minifier; } abstract public function apply(aCssToken &$token); abstract public function getTriggerTokens(); } abstract class aCssMinifierFilter { protected $configuration = array(); protected $minifier = null; public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->configuration = $configuration; $this->minifier = $minifier; } abstract public function apply(array &$tokens); } abstract class aCssFormatter { protected $indent = " "; protected $padding = 0; protected $tokens = array(); public function __construct(array $tokens, $indent = null, $padding = null) { $this->tokens = $tokens; $this->indent = !is_null($indent) ? $indent : $this->indent; $this->padding = !is_null($padding) ? $padding : $this->padding; } abstract public function __toString(); } abstract class aCssDeclarationToken extends aCssToken { public $IsImportant = false; public $IsLast = false; public $Property = ""; public $Value = ""; public function __construct($property, $value, $isImportant = false, $isLast = false) { $this->Property = $property; $this->Value = $value; $this->IsImportant = $isImportant; $this->IsLast = $isLast; } public function __toString() { return $this->Property . ":" . $this->Value . ($this->IsImportant ? " !important" : "") . ($this->IsLast ? "" : ";"); } } abstract class aCssAtBlockStartToken extends aCssToken { } abstract class aCssAtBlockEndToken extends aCssToken { public function __toString() { return "}"; } } class CssWhitesmithsFormatter extends aCssFormatter { public function __toString() { $r = array(); $level = 0; for ($i = 0, $l = count($this->tokens); $i < $l; $i++) { $token = $this->tokens[$i]; $class = get_class($token); $indent = str_repeat($this->indent, $level); if ($class === "CssCommentToken") { $lines = array_map("trim", explode("\n", $token->Comment)); for ($ii = 0, $ll = count($lines); $ii < $ll; $ii++) { $r[] = $indent . (substr($lines[$ii], 0, 1) == "*" ? " " : "") . $lines[$ii]; } } elseif ($class === "CssAtCharsetToken") { $r[] = $indent . "@charset " . $token->Charset . ";"; } elseif ($class === "CssAtFontFaceStartToken") { $r[] = $indent . "@font-face"; $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtImportToken") { $r[] = $indent . "@import " . $token->Import . " " . implode(", ", $token->MediaTypes) . ";"; } elseif ($class === "CssAtKeyframesStartToken") { $r[] = $indent . "@keyframes \"" . $token->Name . "\""; $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtMediaStartToken") { $r[] = $indent . "@media " . implode(", ", $token->MediaTypes); $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtPageStartToken") { $r[] = $indent . "@page"; $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtVariablesStartToken") { $r[] = $indent . "@variables " . implode(", ", $token->MediaTypes); $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssRulesetStartToken" || $class === "CssAtKeyframesRulesetStartToken") { $r[] = $indent . implode(", ", $token->Selectors); $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class == "CssAtFontFaceDeclarationToken" || $class === "CssAtKeyframesRulesetDeclarationToken" || $class === "CssAtPageDeclarationToken" || $class == "CssAtVariablesDeclarationToken" || $class === "CssRulesetDeclarationToken" ) { $declaration = $indent . $token->Property . ": "; if ($this->padding) { $declaration = str_pad($declaration, $this->padding, " ", STR_PAD_RIGHT); } $r[] = $declaration . $token->Value . ($token->IsImportant ? " !important" : "") . ";"; } elseif ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtKeyframesEndToken" || $class === "CssAtKeyframesRulesetEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken" || $class === "CssRulesetEndToken" ) { $r[] = $indent . "}"; $level--; } } return implode("\n", $r); } } class CssVariablesMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/var\((.+)\)/iSU"; private $variables = null; public function getVariables() { return $this->variables; } public function apply(aCssToken &$token) { if (stripos($token->Value, "var") !== false && preg_match_all($this->reMatch, $token->Value, $m)) { $mediaTypes = $token->MediaTypes; if (!in_array("all", $mediaTypes)) { $mediaTypes[] = "all"; } for ($i = 0, $l = count($m[0]); $i < $l; $i++) { $variable = trim($m[1][$i]); foreach ($mediaTypes as $mediaType) { if (isset($this->variables[$mediaType], $this->variables[$mediaType][$variable])) { $token->Value = str_replace($m[0][$i], $this->variables[$mediaType][$variable], $token->Value); continue 2; } } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": No value found for variable " . $variable . " in media types " . implode(", ", $mediaTypes) . "", (string) $token)); $token = new CssNullToken(); return true; } } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } public function setVariables(array $variables) { $this->variables = $variables; } } class CssVariablesMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $variables = array(); $defaultMediaTypes = array("all"); $mediaTypes = array(); $remove = array(); for($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtVariablesStartToken") { $remove[] = $i; $mediaTypes = (count($tokens[$i]->MediaTypes) == 0 ? $defaultMediaTypes : $tokens[$i]->MediaTypes); foreach ($mediaTypes as $mediaType) { if (!isset($variables[$mediaType])) { $variables[$mediaType] = array(); } } for($i = $i; $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtVariablesDeclarationToken") { foreach ($mediaTypes as $mediaType) { $variables[$mediaType][$tokens[$i]->Property] = $tokens[$i]->Value; } $remove[] = $i; } elseif (get_class($tokens[$i]) === "CssAtVariablesEndToken") { $remove[] = $i; break; } } } } foreach($variables as $mediaType => $null) { foreach($variables[$mediaType] as $variable => $value) { if (stripos($value, "var") !== false && preg_match_all("/var\((.+)\)/iSU", $value, $m)) { for ($i = 0, $l = count($m[0]); $i < $l; $i++) { $variables[$mediaType][$variable] = str_replace($m[0][$i], (isset($variables[$mediaType][$m[1][$i]]) ? $variables[$mediaType][$m[1][$i]] : ""), $variables[$mediaType][$variable]); } } } } foreach ($remove as $i) { $tokens[$i] = null; } if (!($plugin = $this->minifier->getPlugin("CssVariablesMinifierPlugin"))) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin CssVariablesMinifierPlugin was not found but is required for " . __CLASS__ . "")); } else { $plugin->setVariables($variables); } return count($remove); } } class CssUrlParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("(", ")"); } public function getTriggerStates() { return false; } public function parse($index, $char, $previousChar, $state) { if ($char === "(" && strtolower(substr($this->parser->getSource(), $index - 3, 4)) === "url(" && $state !== "T_URL") { $this->parser->pushState("T_URL"); $this->parser->setExclusive(__CLASS__); } elseif ($char === "\n" && $previousChar === "\\" && $state === "T_URL") { $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -2)); } elseif ($char === "\n" && $previousChar !== "\\" && $state === "T_URL") { $line = $this->parser->getBuffer(); $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -1) . ")"); $this->parser->popState(); $this->parser->unsetExclusive(); CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated string literal", $line . "_")); } elseif ($char === ")" && $state === "T_URL") { $this->parser->popState(); $this->parser->unsetExclusive(); } else { return false; } return true; } } class CssStringParserPlugin extends aCssParserPlugin { private $delimiterChar = null; public function getTriggerChars() { return array("\"", "'", "\n"); } public function getTriggerStates() { return false; } public function parse($index, $char, $previousChar, $state) { if (($char === "\"" || $char === "'") && $state !== "T_STRING") { $this->delimiterChar = $char; $this->parser->pushState("T_STRING"); $this->parser->setExclusive(__CLASS__); } elseif ($char === "\n" && $previousChar === "\\" && $state === "T_STRING") { $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -2)); } elseif ($char === "\n" && $previousChar !== "\\" && $state === "T_STRING") { $line = $this->parser->getBuffer(); $this->parser->popState(); $this->parser->unsetExclusive(); $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -1) . $this->delimiterChar); CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated string literal", $line . "_")); $this->delimiterChar = null; } elseif ($char === $this->delimiterChar && $state === "T_STRING") { if ($previousChar == "\\") { $source = $this->parser->getSource(); $c = 1; $i = $index - 2; while (substr($source, $i, 1) === "\\") { $c++; $i--; } if ($c % 2) { return false; } } $this->parser->popState(); $this->parser->unsetExclusive(); $this->delimiterChar = null; } else { return false; } return true; } } class CssSortRulesetPropertiesMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) !== "CssRulesetStartToken") { continue; } $endIndex = false; for ($ii = $i + 1; $ii < $l; $ii++) { if (get_class($tokens[$ii]) !== "CssRulesetEndToken") { continue; } $endIndex = $ii; break; } if (!$endIndex) { break; } $startIndex = $i; $i = $endIndex; if ($endIndex - $startIndex <= 2) { continue; } for ($ii = $startIndex + 1; $ii < $endIndex; $ii++) { if (get_class($tokens[$ii]) !== "CssRulesetDeclarationToken") { continue(2); } } $declarations = array_slice($tokens, $startIndex + 1, $endIndex - $startIndex - 1); $sortRequired = $lastPropertyName = false; foreach ($declarations as $declaration) { if ($lastPropertyName) { if (strcmp($lastPropertyName, $declaration->Property) > 0) { $sortRequired = true; break; } } $lastPropertyName = $declaration->Property; } if (!$sortRequired) { continue; } usort($declarations, array(__CLASS__, "userDefinedSort1")); for ($ii = 0, $ll = count($declarations) - 1; $ii <= $ll; $ii++) { if ($ii == $ll) { $declarations[$ii]->IsLast = true; } else { $declarations[$ii]->IsLast = false; } } array_splice($tokens, $startIndex + 1, $endIndex - $startIndex - 1, $declarations); $r += $endIndex - $startIndex - 1; } return $r; } public static function userDefinedSort1($a, $b) { return strcmp($a->Property, $b->Property); } } class CssRulesetStartToken extends aCssRulesetStartToken { public $Selectors = array(); public function __construct(array $selectors = array()) { $this->Selectors = $selectors; } public function __toString() { return implode(",", $this->Selectors) . "{"; } } class CssRulesetParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array(",", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_MEDIA", "T_RULESET::SELECTORS", "T_RULESET", "T_RULESET_DECLARATION"); } private $selectors = array(); public function parse($index, $char, $previousChar, $state) { if ($char === "," && ($state === "T_DOCUMENT" || $state === "T_AT_MEDIA" || $state === "T_RULESET::SELECTORS")) { if ($state !== "T_RULESET::SELECTORS") { $this->parser->pushState("T_RULESET::SELECTORS"); } $this->selectors[] = $this->parser->getAndClearBuffer(",{"); } elseif ($char === "{" && ($state === "T_DOCUMENT" || $state === "T_AT_MEDIA" || $state === "T_RULESET::SELECTORS")) { if ($this->parser->getBuffer() !== "") { $this->selectors[] = $this->parser->getAndClearBuffer(",{"); if ($state == "T_RULESET::SELECTORS") { $this->parser->popState(); } $this->parser->pushState("T_RULESET"); $this->parser->appendToken(new CssRulesetStartToken($this->selectors)); $this->selectors = array(); } } elseif ($char === ":" && $state === "T_RULESET") { $this->parser->pushState("T_RULESET_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":;", true); } elseif ($char === ":" && $state === "T_RULESET_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_RULESET_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssRulesetDeclarationToken($this->buffer, $value, $this->parser->getMediaTypes(), $isImportant)); if ($char === "}") { $this->parser->appendToken(new CssRulesetEndToken()); $this->parser->popState(); } $this->buffer = ""; } elseif ($char === "}" && $state === "T_RULESET") { $this->parser->popState(); $this->parser->clearBuffer(); $this->parser->appendToken(new CssRulesetEndToken()); $this->buffer = ""; $this->selectors = array(); } else { return false; } return true; } } class CssRulesetEndToken extends aCssRulesetEndToken { } class CssRulesetDeclarationToken extends aCssDeclarationToken { public $MediaTypes = array("all"); public function __construct($property, $value, $mediaTypes = null, $isImportant = false, $isLast = false) { parent::__construct($property, $value, $isImportant, $isLast); $this->MediaTypes = $mediaTypes ? $mediaTypes : array("all"); } } class CssRemoveLastDelarationSemiColonMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { for ($i = 0, $l = count($tokens); $i < $l; $i++) { $current = get_class($tokens[$i]); $next = isset($tokens[$i+1]) ? get_class($tokens[$i+1]) : false; if (($current === "CssRulesetDeclarationToken" && $next === "CssRulesetEndToken") || ($current === "CssAtFontFaceDeclarationToken" && $next === "CssAtFontFaceEndToken") || ($current === "CssAtPageDeclarationToken" && $next === "CssAtPageEndToken")) { $tokens[$i]->IsLast = true; } } return 0; } } class CssRemoveEmptyRulesetsMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { $current = get_class($tokens[$i]); $next = isset($tokens[$i + 1]) ? get_class($tokens[$i + 1]) : false; if (($current === "CssRulesetStartToken" && $next === "CssRulesetEndToken") || ($current === "CssAtKeyframesRulesetStartToken" && $next === "CssAtKeyframesRulesetEndToken" && !array_intersect(array("from", "0%", "to", "100%"), array_map("strtolower", $tokens[$i]->Selectors))) ) { $tokens[$i] = null; $tokens[$i + 1] = null; $i++; $r = $r + 2; } } return $r; } } class CssRemoveEmptyAtBlocksMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { $current = get_class($tokens[$i]); $next = isset($tokens[$i + 1]) ? get_class($tokens[$i + 1]) : false; if (($current === "CssAtFontFaceStartToken" && $next === "CssAtFontFaceEndToken") || ($current === "CssAtKeyframesStartToken" && $next === "CssAtKeyframesEndToken") || ($current === "CssAtPageStartToken" && $next === "CssAtPageEndToken") || ($current === "CssAtMediaStartToken" && $next === "CssAtMediaEndToken")) { $tokens[$i] = null; $tokens[$i + 1] = null; $i++; $r = $r + 2; } } return $r; } } class CssRemoveCommentsMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssCommentToken") { $tokens[$i] = null; $r++; } } return $r; } } class CssParser { private $buffer = ""; private $plugins = array(); private $source = ""; private $state = "T_DOCUMENT"; private $stateExclusive = false; private $stateMediaTypes = false; private $states = array("T_DOCUMENT"); private $tokens = array(); public function __construct($source = null, array $plugins = null) { $plugins = array_merge(array ( "Comment" => true, "String" => true, "Url" => true, "Expression" => true, "Ruleset" => true, "AtCharset" => true, "AtFontFace" => true, "AtImport" => true, "AtKeyframes" => true, "AtMedia" => true, "AtPage" => true, "AtVariables" => true ), is_array($plugins) ? $plugins : array()); foreach ($plugins as $name => $config) { if ($config !== false) { $class = "Css" . $name . "ParserPlugin"; $config = is_array($config) ? $config : array(); if (class_exists($class)) { $this->plugins[] = new $class($this, $config); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin " . $name . " with the class name " . $class . " was not found")); } } } if (!is_null($source)) { $this->parse($source); } } public function appendToken(aCssToken $token) { $this->tokens[] = $token; } public function clearBuffer() { $this->buffer = ""; } public function getAndClearBuffer($trim = "", $tolower = false) { $r = $this->getBuffer($trim, $tolower); $this->buffer = ""; return $r; } public function getBuffer($trim = "", $tolower = false) { $r = $this->buffer; if ($trim) { $r = trim($r, " \t\n\r\0\x0B" . $trim); } if ($tolower) { $r = strtolower($r); } return $r; } public function getMediaTypes() { return $this->stateMediaTypes; } public function getSource() { return $this->source; } public function getState() { return $this->state; } public function getPlugin($class) { static $index = null; if (is_null($index)) { $index = array(); for ($i = 0, $l = count($this->plugins); $i < $l; $i++) { $index[get_class($this->plugins[$i])] = $i; } } return isset($index[$class]) ? $this->plugins[$index[$class]] : false; } public function getTokens() { return $this->tokens; } public function isState($state) { return ($this->state == $state); } public function parse($source) { $this->source = ""; $this->tokens = array(); $globalTriggerChars = ""; $plugins = $this->plugins; $pluginCount = count($plugins); $pluginIndex = array(); $pluginTriggerStates = array(); $pluginTriggerChars = array(); for ($i = 0, $l = count($plugins); $i < $l; $i++) { $tPluginClassName = get_class($plugins[$i]); $pluginTriggerChars[$i] = implode("", $plugins[$i]->getTriggerChars()); $tPluginTriggerStates = $plugins[$i]->getTriggerStates(); $pluginTriggerStates[$i] = $tPluginTriggerStates === false ? false : "|" . implode("|", $tPluginTriggerStates) . "|"; $pluginIndex[$tPluginClassName] = $i; for ($ii = 0, $ll = strlen($pluginTriggerChars[$i]); $ii < $ll; $ii++) { $c = substr($pluginTriggerChars[$i], $ii, 1); if (strpos($globalTriggerChars, $c) === false) { $globalTriggerChars .= $c; } } } $source = str_replace("\r\n", "\n", $source); $source = str_replace("\r", "\n", $source); $this->source = $source; $buffer = &$this->buffer; $exclusive = &$this->stateExclusive; $state = &$this->state; $c = $p = null; for ($i = 0, $l = strlen($source); $i < $l; $i++) { $c = $source[$i]; if ($exclusive === false) { if ($c === "\n" || $c === "\t") { $c = " "; } if ($c === " " && $p === " ") { continue; } } $buffer .= $c; if (strpos($globalTriggerChars, $c) !== false) { if ($exclusive) { $tPluginIndex = $pluginIndex[$exclusive]; if (strpos($pluginTriggerChars[$tPluginIndex], $c) !== false && ($pluginTriggerStates[$tPluginIndex] === false || strpos($pluginTriggerStates[$tPluginIndex], $state) !== false)) { $r = $plugins[$tPluginIndex]->parse($i, $c, $p, $state); if ($r === true) { continue; } elseif ($r !== false && $r != $i) { $i = $r; continue; } } } else { $triggerState = "|" . $state . "|"; for ($ii = 0, $ll = $pluginCount; $ii < $ll; $ii++) { if (strpos($pluginTriggerChars[$ii], $c) !== false && ($pluginTriggerStates[$ii] === false || strpos($pluginTriggerStates[$ii], $triggerState) !== false)) { $r = $plugins[$ii]->parse($i, $c, $p, $state); if ($r === true) { break; } elseif ($r !== false && $r != $i) { $i = $r; break; } } } } } $p = $c; } return $this->tokens; } public function popState() { $r = array_pop($this->states); $this->state = $this->states[count($this->states) - 1]; return $r; } public function pushState($state) { $r = array_push($this->states, $state); $this->state = $this->states[count($this->states) - 1]; return $r; } public function setBuffer($buffer) { $this->buffer = $buffer; } public function setExclusive($exclusive) { $this->stateExclusive = $exclusive; } public function setMediaTypes(array $mediaTypes) { $this->stateMediaTypes = $mediaTypes; } public function setState($state) { $r = array_pop($this->states); array_push($this->states, $state); $this->state = $this->states[count($this->states) - 1]; return $r; } public function unsetExclusive() { $this->stateExclusive = false; } public function unsetMediaTypes() { $this->stateMediaTypes = false; } } class CssOtbsFormatter extends aCssFormatter { public function __toString() { $r = array(); $level = 0; for ($i = 0, $l = count($this->tokens); $i < $l; $i++) { $token = $this->tokens[$i]; $class = get_class($token); $indent = str_repeat($this->indent, $level); if ($class === "CssCommentToken") { $lines = array_map("trim", explode("\n", $token->Comment)); for ($ii = 0, $ll = count($lines); $ii < $ll; $ii++) { $r[] = $indent . (substr($lines[$ii], 0, 1) == "*" ? " " : "") . $lines[$ii]; } } elseif ($class === "CssAtCharsetToken") { $r[] = $indent . "@charset " . $token->Charset . ";"; } elseif ($class === "CssAtFontFaceStartToken") { $r[] = $indent . "@font-face {"; $level++; } elseif ($class === "CssAtImportToken") { $r[] = $indent . "@import " . $token->Import . " " . implode(", ", $token->MediaTypes) . ";"; } elseif ($class === "CssAtKeyframesStartToken") { $r[] = $indent . "@keyframes \"" . $token->Name . "\" {"; $level++; } elseif ($class === "CssAtMediaStartToken") { $r[] = $indent . "@media " . implode(", ", $token->MediaTypes) . " {"; $level++; } elseif ($class === "CssAtPageStartToken") { $r[] = $indent . "@page {"; $level++; } elseif ($class === "CssAtVariablesStartToken") { $r[] = $indent . "@variables " . implode(", ", $token->MediaTypes) . " {"; $level++; } elseif ($class === "CssRulesetStartToken" || $class === "CssAtKeyframesRulesetStartToken") { $r[] = $indent . implode(", ", $token->Selectors) . " {"; $level++; } elseif ($class == "CssAtFontFaceDeclarationToken" || $class === "CssAtKeyframesRulesetDeclarationToken" || $class === "CssAtPageDeclarationToken" || $class == "CssAtVariablesDeclarationToken" || $class === "CssRulesetDeclarationToken" ) { $declaration = $indent . $token->Property . ": "; if ($this->padding) { $declaration = str_pad($declaration, $this->padding, " ", STR_PAD_RIGHT); } $r[] = $declaration . $token->Value . ($token->IsImportant ? " !important" : "") . ";"; } elseif ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtKeyframesEndToken" || $class === "CssAtKeyframesRulesetEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken" || $class === "CssRulesetEndToken" ) { $level--; $r[] = str_repeat($indent, $level) . "}"; } } return implode("\n", $r); } } class CssNullToken extends aCssToken { public function __toString() { return ""; } } class CssMinifier { private $filters = array(); private $plugins = array(); private $minified = ""; public function __construct($source = null, array $filters = null, array $plugins = null) { $filters = array_merge(array ( "ImportImports" => false, "RemoveComments" => true, "RemoveEmptyRulesets" => true, "RemoveEmptyAtBlocks" => true, "ConvertLevel3Properties" => false, "ConvertLevel3AtKeyframes" => false, "Variables" => true, "RemoveLastDelarationSemiColon" => true ), is_array($filters) ? $filters : array()); $plugins = array_merge(array ( "Variables" => true, "ConvertFontWeight" => false, "ConvertHslColors" => false, "ConvertRgbColors" => false, "ConvertNamedColors" => false, "CompressColorValues" => false, "CompressUnitValues" => false, "CompressExpressionValues" => false ), is_array($plugins) ? $plugins : array()); foreach ($filters as $name => $config) { if ($config !== false) { $class = "Css" . $name . "MinifierFilter"; $config = is_array($config) ? $config : array(); if (class_exists($class)) { $this->filters[] = new $class($this, $config); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The filter " . $name . " with the class name " . $class . " was not found")); } } } foreach ($plugins as $name => $config) { if ($config !== false) { $class = "Css" . $name . "MinifierPlugin"; $config = is_array($config) ? $config : array(); if (class_exists($class)) { $this->plugins[] = new $class($this, $config); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin " . $name . " with the class name " . $class . " was not found")); } } } if (!is_null($source)) { $this->minify($source); } } public function getMinified() { return $this->minified; } public function getPlugin($class) { static $index = null; if (is_null($index)) { $index = array(); for ($i = 0, $l = count($this->plugins); $i < $l; $i++) { $index[get_class($this->plugins[$i])] = $i; } } return isset($index[$class]) ? $this->plugins[$index[$class]] : false; } public function minify($source) { $r = ""; $parser = new CssParser($source); $tokens = $parser->getTokens(); $filters = $this->filters; $filterCount = count($this->filters); $plugins = $this->plugins; $pluginCount = count($plugins); $pluginIndex = array(); $pluginTriggerTokens = array(); $globalTriggerTokens = array(); for ($i = 0, $l = count($plugins); $i < $l; $i++) { $tPluginClassName = get_class($plugins[$i]); $pluginTriggerTokens[$i] = $plugins[$i]->getTriggerTokens(); foreach ($pluginTriggerTokens[$i] as $v) { if (!in_array($v, $globalTriggerTokens)) { $globalTriggerTokens[] = $v; } } $pluginTriggerTokens[$i] = "|" . implode("|", $pluginTriggerTokens[$i]) . "|"; $pluginIndex[$tPluginClassName] = $i; } $globalTriggerTokens = "|" . implode("|", $globalTriggerTokens) . "|"; for($i = 0; $i < $filterCount; $i++) { if ($filters[$i]->apply($tokens) > 0) { $tokens = array_values(array_filter($tokens)); } } $tokenCount = count($tokens); for($i = 0; $i < $tokenCount; $i++) { $triggerToken = "|" . get_class($tokens[$i]) . "|"; if (strpos($globalTriggerTokens, $triggerToken) !== false) { for($ii = 0; $ii < $pluginCount; $ii++) { if (strpos($pluginTriggerTokens[$ii], $triggerToken) !== false || $pluginTriggerTokens[$ii] === false) { if ($plugins[$ii]->apply($tokens[$i]) === true) { continue 2; } } } } } for($i = 0; $i < $tokenCount; $i++) { $r .= (string) $tokens[$i]; } $this->minified = $r; return $r; } } class CssMin { private static $classIndex = array(); private static $errors = array(); private static $isVerbose = false; public static function autoload($class) { if (isset(self::$classIndex[$class])) { require(self::$classIndex[$class]); } } public static function getErrors() { return self::$errors; } public static function hasErrors() { return count(self::$errors) > 0; } public static function initialise() { $paths = array(dirname(__FILE__)); for ($i = 0; $i < count($paths); $i++) { $path = $paths[$i]; $subDirectorys = glob($path . "*", GLOB_MARK | GLOB_ONLYDIR | GLOB_NOSORT); if (is_array($subDirectorys)) { foreach ($subDirectorys as $subDirectory) { $paths[] = $subDirectory; } } $files = glob($path . "*.php", 0); if (is_array($files)) { foreach ($files as $file) { $class = substr(basename($file), 0, -4); self::$classIndex[$class] = $file; } } } krsort(self::$classIndex); if (function_exists("spl_autoload_register") && !is_callable("__autoload")) { spl_autoload_register(array(__CLASS__, "autoload")); } else { foreach (self::$classIndex as $class => $file) { if (!class_exists($class)) { require_once($file); } } } } public static function minify($source, array $filters = null, array $plugins = null) { self::$errors = array(); $minifier = new CssMinifier($source, $filters, $plugins); return $minifier->getMinified(); } public static function parse($source, array $plugins = null) { self::$errors = array(); $parser = new CssParser($source, $plugins); return $parser->getTokens(); } public static function setVerbose($to) { self::$isVerbose = (boolean) $to; return self::$isVerbose; } public static function triggerError(CssError $error) { self::$errors[] = $error; if (self::$isVerbose) { trigger_error((string) $error, E_USER_WARNING); } } } CssMin::initialise(); class CssImportImportsMinifierFilter extends aCssMinifierFilter { private $imported = array(); public function apply(array &$tokens) { if (!isset($this->configuration["BasePath"]) || !is_dir($this->configuration["BasePath"])) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Base path " . ($this->configuration["BasePath"] ? $this->configuration["BasePath"] : "null"). " is not a directory")); return 0; } for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtImportToken") { $import = $this->configuration["BasePath"] . "/" . $tokens[$i]->Import; if (!is_file($import)) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file " . $import. " was not found.", (string) $tokens[$i])); } elseif (in_array($import, $this->imported)) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file " . $import. " was already imported.", (string) $tokens[$i])); $tokens[$i] = null; } else { $this->imported[] = $import; $parser = new CssParser(file_get_contents($import)); $import = $parser->getTokens(); if (count($tokens[$i]->MediaTypes) > 0 && !(count($tokens[$i]->MediaTypes) == 1 && $tokens[$i]->MediaTypes[0] == "all")) { $blocks = array(); for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtImportToken") { if (count($import[$ii]->MediaTypes) == 0 || (count($import[$ii]->MediaTypes) == 1 && $import[$ii]->MediaTypes[0] == "all")) { $import[$ii]->MediaTypes = $tokens[$i]->MediaTypes; } elseif (count($import[$ii]->MediaTypes > 0)) { foreach ($import[$ii]->MediaTypes as $index => $mediaType) { if (!in_array($mediaType, $tokens[$i]->MediaTypes)) { unset($import[$ii]->MediaTypes[$index]); } } $import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes); if (count($import[$ii]->MediaTypes) == 0) { $import[$ii] = null; } } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtMediaStartToken") { foreach ($import[$ii]->MediaTypes as $index => $mediaType) { if (!in_array($mediaType, $tokens[$i]->MediaTypes)) { unset($import[$ii]->MediaTypes[$index]); } $import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes); } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtMediaStartToken") { if (count($import[$ii]->MediaTypes) === 0) { for ($iii = $ii; $iii < $ll; $iii++) { if (get_class($import[$iii]) === "CssAtMediaEndToken") { break; } } if (get_class($import[$iii]) === "CssAtMediaEndToken") { array_splice($import, $ii, $iii - $ii + 1, array()); $ll = count($import); } } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtMediaStartToken" && count(array_diff($tokens[$i]->MediaTypes, $import[$ii]->MediaTypes)) === 0) { for ($iii = $ii; $iii < $ll; $iii++) { if (get_class($import[$iii]) == "CssAtMediaEndToken") { break; } } if (get_class($import[$iii]) == "CssAtMediaEndToken") { unset($import[$ii]); unset($import[$iii]); $import = array_values($import); $ll = count($import); } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { $class = get_class($import[$ii]); if ($class === "CssAtImportToken" || $class === "CssAtCharsetToken") { $blocks = array_merge($blocks, array_splice($import, $ii, 1, array())); $ll = count($import); } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { $class = get_class($import[$ii]); if ($class === "CssAtFontFaceStartToken" || $class === "CssAtMediaStartToken" || $class === "CssAtPageStartToken" || $class === "CssAtVariablesStartToken") { for ($iii = $ii; $iii < $ll; $iii++) { $class = get_class($import[$iii]); if ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken") { break; } } $class = get_class($import[$iii]); if (isset($import[$iii]) && ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken")) { $blocks = array_merge($blocks, array_splice($import, $ii, $iii - $ii + 1, array())); $ll = count($import); } } } $import = array_merge($blocks, array(new CssAtMediaStartToken($tokens[$i]->MediaTypes)), $import, array(new CssAtMediaEndToken())); } array_splice($tokens, $i, 1, $import); $i--; $l = count($tokens); } } } } } class CssExpressionParserPlugin extends aCssParserPlugin { private $leftBraces = 0; private $rightBraces = 0; public function getTriggerChars() { return array("(", ")", ";", "}"); } public function getTriggerStates() { return false; } public function parse($index, $char, $previousChar, $state) { if ($char === "(" && strtolower(substr($this->parser->getSource(), $index - 10, 11)) === "expression(" && $state !== "T_EXPRESSION") { $this->parser->pushState("T_EXPRESSION"); $this->leftBraces++; } elseif ($char === "(" && $state === "T_EXPRESSION") { $this->leftBraces++; } elseif ($char === ")" && $state === "T_EXPRESSION") { $this->rightBraces++; } elseif (($char === ";" || $char === "}") && $state === "T_EXPRESSION" && $this->leftBraces === $this->rightBraces) { $this->leftBraces = $this->rightBraces = 0; $this->parser->popState(); return $index - 1; } else { return false; } return true; } } class CssError { public $File = ""; public $Line = 0; public $Message = ""; public $Source = ""; public function __construct($file, $line, $message, $source = "") { $this->File = $file; $this->Line = $line; $this->Message = $message; $this->Source = $source; } public function __toString() { return $this->Message . ($this->Source ? ":
" . $this->Source . "": "") . "
in file " . $this->File . " at line " . $this->Line; } } class CssConvertRgbColorsMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/rgb\s*\(\s*([0-9%]+)\s*,\s*([0-9%]+)\s*,\s*([0-9%]+)\s*\)/iS"; public function apply(aCssToken &$token) { if (stripos($token->Value, "rgb") !== false && preg_match($this->reMatch, $token->Value, $m)) { for ($i = 1, $l = count($m); $i < $l; $i++) { if (strpos("%", $m[$i]) !== false) { $m[$i] = substr($m[$i], 0, -1); $m[$i] = (int) (256 * ($m[$i] / 100)); } $m[$i] = str_pad(dechex($m[$i]), 2, "0", STR_PAD_LEFT); } $token->Value = str_replace($m[0], "#" . $m[1] . $m[2] . $m[3], $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssConvertNamedColorsMinifierPlugin extends aCssMinifierPlugin { private $reMatch = null; private $reReplace = "\"\${1}\" . \$this->transformation[strtolower(\"\${2}\")] . \"\${3}\""; private $transformation = array ( "aliceblue" => "#f0f8ff", "antiquewhite" => "#faebd7", "aqua" => "#0ff", "aquamarine" => "#7fffd4", "azure" => "#f0ffff", "beige" => "#f5f5dc", "black" => "#000", "blue" => "#00f", "blueviolet" => "#8a2be2", "brown" => "#a52a2a", "burlywood" => "#deb887", "cadetblue" => "#5f9ea0", "chartreuse" => "#7fff00", "chocolate" => "#d2691e", "coral" => "#ff7f50", "cornflowerblue" => "#6495ed", "cornsilk" => "#fff8dc", "crimson" => "#dc143c", "darkblue" => "#00008b", "darkcyan" => "#008b8b", "darkgoldenrod" => "#b8860b", "darkgray" => "#a9a9a9", "darkgreen" => "#006400", "darkkhaki" => "#bdb76b", "darkmagenta" => "#8b008b", "darkolivegreen" => "#556b2f", "darkorange" => "#ff8c00", "darkorchid" => "#9932cc", "darkred" => "#8b0000", "darksalmon" => "#e9967a", "darkseagreen" => "#8fbc8f", "darkslateblue" => "#483d8b", "darkslategray" => "#2f4f4f", "darkturquoise" => "#00ced1", "darkviolet" => "#9400d3", "deeppink" => "#ff1493", "deepskyblue" => "#00bfff", "dimgray" => "#696969", "dodgerblue" => "#1e90ff", "firebrick" => "#b22222", "floralwhite" => "#fffaf0", "forestgreen" => "#228b22", "fuchsia" => "#f0f", "gainsboro" => "#dcdcdc", "ghostwhite" => "#f8f8ff", "gold" => "#ffd700", "goldenrod" => "#daa520", "gray" => "#808080", "green" => "#008000", "greenyellow" => "#adff2f", "honeydew" => "#f0fff0", "hotpink" => "#ff69b4", "indianred" => "#cd5c5c", "indigo" => "#4b0082", "ivory" => "#fffff0", "khaki" => "#f0e68c", "lavender" => "#e6e6fa", "lavenderblush" => "#fff0f5", "lawngreen" => "#7cfc00", "lemonchiffon" => "#fffacd", "lightblue" => "#add8e6", "lightcoral" => "#f08080", "lightcyan" => "#e0ffff", "lightgoldenrodyellow" => "#fafad2", "lightgreen" => "#90ee90", "lightgrey" => "#d3d3d3", "lightpink" => "#ffb6c1", "lightsalmon" => "#ffa07a", "lightseagreen" => "#20b2aa", "lightskyblue" => "#87cefa", "lightslategray" => "#789", "lightsteelblue" => "#b0c4de", "lightyellow" => "#ffffe0", "lime" => "#0f0", "limegreen" => "#32cd32", "linen" => "#faf0e6", "maroon" => "#800000", "mediumaquamarine" => "#66cdaa", "mediumblue" => "#0000cd", "mediumorchid" => "#ba55d3", "mediumpurple" => "#9370db", "mediumseagreen" => "#3cb371", "mediumslateblue" => "#7b68ee", "mediumspringgreen" => "#00fa9a", "mediumturquoise" => "#48d1cc", "mediumvioletred" => "#c71585", "midnightblue" => "#191970", "mintcream" => "#f5fffa", "mistyrose" => "#ffe4e1", "moccasin" => "#ffe4b5", "navajowhite" => "#ffdead", "navy" => "#000080", "oldlace" => "#fdf5e6", "olive" => "#808000", "olivedrab" => "#6b8e23", "orange" => "#ffa500", "orangered" => "#ff4500", "orchid" => "#da70d6", "palegoldenrod" => "#eee8aa", "palegreen" => "#98fb98", "paleturquoise" => "#afeeee", "palevioletred" => "#db7093", "papayawhip" => "#ffefd5", "peachpuff" => "#ffdab9", "peru" => "#cd853f", "pink" => "#ffc0cb", "plum" => "#dda0dd", "powderblue" => "#b0e0e6", "purple" => "#800080", "red" => "#f00", "rosybrown" => "#bc8f8f", "royalblue" => "#4169e1", "saddlebrown" => "#8b4513", "salmon" => "#fa8072", "sandybrown" => "#f4a460", "seagreen" => "#2e8b57", "seashell" => "#fff5ee", "sienna" => "#a0522d", "silver" => "#c0c0c0", "skyblue" => "#87ceeb", "slateblue" => "#6a5acd", "slategray" => "#708090", "snow" => "#fffafa", "springgreen" => "#00ff7f", "steelblue" => "#4682b4", "tan" => "#d2b48c", "teal" => "#008080", "thistle" => "#d8bfd8", "tomato" => "#ff6347", "turquoise" => "#40e0d0", "violet" => "#ee82ee", "wheat" => "#f5deb3", "white" => "#fff", "whitesmoke" => "#f5f5f5", "yellow" => "#ff0", "yellowgreen" => "#9acd32" ); public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->reMatch = "/(^|\s)+(" . implode("|", array_keys($this->transformation)) . ")(\s|$)+/eiS"; parent::__construct($minifier, $configuration); } public function apply(aCssToken &$token) { $lcValue = strtolower($token->Value); if (isset($this->transformation[$lcValue])) { $token->Value = $this->transformation[$lcValue]; } elseif (preg_match($this->reMatch, $token->Value)) { $token->Value = preg_replace($this->reMatch, $this->reReplace, $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssConvertLevel3PropertiesMinifierFilter extends aCssMinifierFilter { private $transformations = array ( "animation" => array(null, "-webkit-animation", null, null), "animation-delay" => array(null, "-webkit-animation-delay", null, null), "animation-direction" => array(null, "-webkit-animation-direction", null, null), "animation-duration" => array(null, "-webkit-animation-duration", null, null), "animation-fill-mode" => array(null, "-webkit-animation-fill-mode", null, null), "animation-iteration-count" => array(null, "-webkit-animation-iteration-count", null, null), "animation-name" => array(null, "-webkit-animation-name", null, null), "animation-play-state" => array(null, "-webkit-animation-play-state", null, null), "animation-timing-function" => array(null, "-webkit-animation-timing-function", null, null), "appearance" => array("-moz-appearance", "-webkit-appearance", null, null), "backface-visibility" => array(null, "-webkit-backface-visibility", null, null), "background-clip" => array(null, "-webkit-background-clip", null, null), "background-composite" => array(null, "-webkit-background-composite", null, null), "background-inline-policy" => array("-moz-background-inline-policy", null, null, null), "background-origin" => array(null, "-webkit-background-origin", null, null), "background-position-x" => array(null, null, null, "-ms-background-position-x"), "background-position-y" => array(null, null, null, "-ms-background-position-y"), "background-size" => array(null, "-webkit-background-size", null, null), "behavior" => array(null, null, null, "-ms-behavior"), "binding" => array("-moz-binding", null, null, null), "border-after" => array(null, "-webkit-border-after", null, null), "border-after-color" => array(null, "-webkit-border-after-color", null, null), "border-after-style" => array(null, "-webkit-border-after-style", null, null), "border-after-width" => array(null, "-webkit-border-after-width", null, null), "border-before" => array(null, "-webkit-border-before", null, null), "border-before-color" => array(null, "-webkit-border-before-color", null, null), "border-before-style" => array(null, "-webkit-border-before-style", null, null), "border-before-width" => array(null, "-webkit-border-before-width", null, null), "border-border-bottom-colors" => array("-moz-border-bottom-colors", null, null, null), "border-bottom-left-radius" => array("-moz-border-radius-bottomleft", "-webkit-border-bottom-left-radius", null, null), "border-bottom-right-radius" => array("-moz-border-radius-bottomright", "-webkit-border-bottom-right-radius", null, null), "border-end" => array("-moz-border-end", "-webkit-border-end", null, null), "border-end-color" => array("-moz-border-end-color", "-webkit-border-end-color", null, null), "border-end-style" => array("-moz-border-end-style", "-webkit-border-end-style", null, null), "border-end-width" => array("-moz-border-end-width", "-webkit-border-end-width", null, null), "border-fit" => array(null, "-webkit-border-fit", null, null), "border-horizontal-spacing" => array(null, "-webkit-border-horizontal-spacing", null, null), "border-image" => array("-moz-border-image", "-webkit-border-image", null, null), "border-left-colors" => array("-moz-border-left-colors", null, null, null), "border-radius" => array("-moz-border-radius", "-webkit-border-radius", null, null), "border-border-right-colors" => array("-moz-border-right-colors", null, null, null), "border-start" => array("-moz-border-start", "-webkit-border-start", null, null), "border-start-color" => array("-moz-border-start-color", "-webkit-border-start-color", null, null), "border-start-style" => array("-moz-border-start-style", "-webkit-border-start-style", null, null), "border-start-width" => array("-moz-border-start-width", "-webkit-border-start-width", null, null), "border-top-colors" => array("-moz-border-top-colors", null, null, null), "border-top-left-radius" => array("-moz-border-radius-topleft", "-webkit-border-top-left-radius", null, null), "border-top-right-radius" => array("-moz-border-radius-topright", "-webkit-border-top-right-radius", null, null), "border-vertical-spacing" => array(null, "-webkit-border-vertical-spacing", null, null), "box-align" => array("-moz-box-align", "-webkit-box-align", null, null), "box-direction" => array("-moz-box-direction", "-webkit-box-direction", null, null), "box-flex" => array("-moz-box-flex", "-webkit-box-flex", null, null), "box-flex-group" => array(null, "-webkit-box-flex-group", null, null), "box-flex-lines" => array(null, "-webkit-box-flex-lines", null, null), "box-ordinal-group" => array("-moz-box-ordinal-group", "-webkit-box-ordinal-group", null, null), "box-orient" => array("-moz-box-orient", "-webkit-box-orient", null, null), "box-pack" => array("-moz-box-pack", "-webkit-box-pack", null, null), "box-reflect" => array(null, "-webkit-box-reflect", null, null), "box-shadow" => array("-moz-box-shadow", "-webkit-box-shadow", null, null), "box-sizing" => array("-moz-box-sizing", null, null, null), "color-correction" => array(null, "-webkit-color-correction", null, null), "column-break-after" => array(null, "-webkit-column-break-after", null, null), "column-break-before" => array(null, "-webkit-column-break-before", null, null), "column-break-inside" => array(null, "-webkit-column-break-inside", null, null), "column-count" => array("-moz-column-count", "-webkit-column-count", null, null), "column-gap" => array("-moz-column-gap", "-webkit-column-gap", null, null), "column-rule" => array("-moz-column-rule", "-webkit-column-rule", null, null), "column-rule-color" => array("-moz-column-rule-color", "-webkit-column-rule-color", null, null), "column-rule-style" => array("-moz-column-rule-style", "-webkit-column-rule-style", null, null), "column-rule-width" => array("-moz-column-rule-width", "-webkit-column-rule-width", null, null), "column-span" => array(null, "-webkit-column-span", null, null), "column-width" => array("-moz-column-width", "-webkit-column-width", null, null), "columns" => array(null, "-webkit-columns", null, null), "filter" => array(__CLASS__, "filter"), "float-edge" => array("-moz-float-edge", null, null, null), "font-feature-settings" => array("-moz-font-feature-settings", null, null, null), "font-language-override" => array("-moz-font-language-override", null, null, null), "font-size-delta" => array(null, "-webkit-font-size-delta", null, null), "font-smoothing" => array(null, "-webkit-font-smoothing", null, null), "force-broken-image-icon" => array("-moz-force-broken-image-icon", null, null, null), "highlight" => array(null, "-webkit-highlight", null, null), "hyphenate-character" => array(null, "-webkit-hyphenate-character", null, null), "hyphenate-locale" => array(null, "-webkit-hyphenate-locale", null, null), "hyphens" => array(null, "-webkit-hyphens", null, null), "force-broken-image-icon" => array("-moz-image-region", null, null, null), "ime-mode" => array(null, null, null, "-ms-ime-mode"), "interpolation-mode" => array(null, null, null, "-ms-interpolation-mode"), "layout-flow" => array(null, null, null, "-ms-layout-flow"), "layout-grid" => array(null, null, null, "-ms-layout-grid"), "layout-grid-char" => array(null, null, null, "-ms-layout-grid-char"), "layout-grid-line" => array(null, null, null, "-ms-layout-grid-line"), "layout-grid-mode" => array(null, null, null, "-ms-layout-grid-mode"), "layout-grid-type" => array(null, null, null, "-ms-layout-grid-type"), "line-break" => array(null, "-webkit-line-break", null, "-ms-line-break"), "line-clamp" => array(null, "-webkit-line-clamp", null, null), "line-grid-mode" => array(null, null, null, "-ms-line-grid-mode"), "logical-height" => array(null, "-webkit-logical-height", null, null), "logical-width" => array(null, "-webkit-logical-width", null, null), "margin-after" => array(null, "-webkit-margin-after", null, null), "margin-after-collapse" => array(null, "-webkit-margin-after-collapse", null, null), "margin-before" => array(null, "-webkit-margin-before", null, null), "margin-before-collapse" => array(null, "-webkit-margin-before-collapse", null, null), "margin-bottom-collapse" => array(null, "-webkit-margin-bottom-collapse", null, null), "margin-collapse" => array(null, "-webkit-margin-collapse", null, null), "margin-end" => array("-moz-margin-end", "-webkit-margin-end", null, null), "margin-start" => array("-moz-margin-start", "-webkit-margin-start", null, null), "margin-top-collapse" => array(null, "-webkit-margin-top-collapse", null, null), "marquee " => array(null, "-webkit-marquee", null, null), "marquee-direction" => array(null, "-webkit-marquee-direction", null, null), "marquee-increment" => array(null, "-webkit-marquee-increment", null, null), "marquee-repetition" => array(null, "-webkit-marquee-repetition", null, null), "marquee-speed" => array(null, "-webkit-marquee-speed", null, null), "marquee-style" => array(null, "-webkit-marquee-style", null, null), "mask" => array(null, "-webkit-mask", null, null), "mask-attachment" => array(null, "-webkit-mask-attachment", null, null), "mask-box-image" => array(null, "-webkit-mask-box-image", null, null), "mask-clip" => array(null, "-webkit-mask-clip", null, null), "mask-composite" => array(null, "-webkit-mask-composite", null, null), "mask-image" => array(null, "-webkit-mask-image", null, null), "mask-origin" => array(null, "-webkit-mask-origin", null, null), "mask-position" => array(null, "-webkit-mask-position", null, null), "mask-position-x" => array(null, "-webkit-mask-position-x", null, null), "mask-position-y" => array(null, "-webkit-mask-position-y", null, null), "mask-repeat" => array(null, "-webkit-mask-repeat", null, null), "mask-repeat-x" => array(null, "-webkit-mask-repeat-x", null, null), "mask-repeat-y" => array(null, "-webkit-mask-repeat-y", null, null), "mask-size" => array(null, "-webkit-mask-size", null, null), "match-nearest-mail-blockquote-color" => array(null, "-webkit-match-nearest-mail-blockquote-color", null, null), "max-logical-height" => array(null, "-webkit-max-logical-height", null, null), "max-logical-width" => array(null, "-webkit-max-logical-width", null, null), "min-logical-height" => array(null, "-webkit-min-logical-height", null, null), "min-logical-width" => array(null, "-webkit-min-logical-width", null, null), "object-fit" => array(null, null, "-o-object-fit", null), "object-position" => array(null, null, "-o-object-position", null), "opacity" => array(__CLASS__, "opacity"), "outline-radius" => array("-moz-outline-radius", null, null, null), "outline-bottom-left-radius" => array("-moz-outline-radius-bottomleft", null, null, null), "outline-bottom-right-radius" => array("-moz-outline-radius-bottomright", null, null, null), "outline-top-left-radius" => array("-moz-outline-radius-topleft", null, null, null), "outline-top-right-radius" => array("-moz-outline-radius-topright", null, null, null), "padding-after" => array(null, "-webkit-padding-after", null, null), "padding-before" => array(null, "-webkit-padding-before", null, null), "padding-end" => array("-moz-padding-end", "-webkit-padding-end", null, null), "padding-start" => array("-moz-padding-start", "-webkit-padding-start", null, null), "perspective" => array(null, "-webkit-perspective", null, null), "perspective-origin" => array(null, "-webkit-perspective-origin", null, null), "perspective-origin-x" => array(null, "-webkit-perspective-origin-x", null, null), "perspective-origin-y" => array(null, "-webkit-perspective-origin-y", null, null), "rtl-ordering" => array(null, "-webkit-rtl-ordering", null, null), "scrollbar-3dlight-color" => array(null, null, null, "-ms-scrollbar-3dlight-color"), "scrollbar-arrow-color" => array(null, null, null, "-ms-scrollbar-arrow-color"), "scrollbar-base-color" => array(null, null, null, "-ms-scrollbar-base-color"), "scrollbar-darkshadow-color" => array(null, null, null, "-ms-scrollbar-darkshadow-color"), "scrollbar-face-color" => array(null, null, null, "-ms-scrollbar-face-color"), "scrollbar-highlight-color" => array(null, null, null, "-ms-scrollbar-highlight-color"), "scrollbar-shadow-color" => array(null, null, null, "-ms-scrollbar-shadow-color"), "scrollbar-track-color" => array(null, null, null, "-ms-scrollbar-track-color"), "stack-sizing" => array("-moz-stack-sizing", null, null, null), "svg-shadow" => array(null, "-webkit-svg-shadow", null, null), "tab-size" => array("-moz-tab-size", null, "-o-tab-size", null), "table-baseline" => array(null, null, "-o-table-baseline", null), "text-align-last" => array(null, null, null, "-ms-text-align-last"), "text-autospace" => array(null, null, null, "-ms-text-autospace"), "text-combine" => array(null, "-webkit-text-combine", null, null), "text-decorations-in-effect" => array(null, "-webkit-text-decorations-in-effect", null, null), "text-emphasis" => array(null, "-webkit-text-emphasis", null, null), "text-emphasis-color" => array(null, "-webkit-text-emphasis-color", null, null), "text-emphasis-position" => array(null, "-webkit-text-emphasis-position", null, null), "text-emphasis-style" => array(null, "-webkit-text-emphasis-style", null, null), "text-fill-color" => array(null, "-webkit-text-fill-color", null, null), "text-justify" => array(null, null, null, "-ms-text-justify"), "text-kashida-space" => array(null, null, null, "-ms-text-kashida-space"), "text-overflow" => array(null, null, "-o-text-overflow", "-ms-text-overflow"), "text-security" => array(null, "-webkit-text-security", null, null), "text-size-adjust" => array(null, "-webkit-text-size-adjust", null, "-ms-text-size-adjust"), "text-stroke" => array(null, "-webkit-text-stroke", null, null), "text-stroke-color" => array(null, "-webkit-text-stroke-color", null, null), "text-stroke-width" => array(null, "-webkit-text-stroke-width", null, null), "text-underline-position" => array(null, null, null, "-ms-text-underline-position"), "transform" => array("-moz-transform", "-webkit-transform", "-o-transform", null), "transform-origin" => array("-moz-transform-origin", "-webkit-transform-origin", "-o-transform-origin", null), "transform-origin-x" => array(null, "-webkit-transform-origin-x", null, null), "transform-origin-y" => array(null, "-webkit-transform-origin-y", null, null), "transform-origin-z" => array(null, "-webkit-transform-origin-z", null, null), "transform-style" => array(null, "-webkit-transform-style", null, null), "transition" => array("-moz-transition", "-webkit-transition", "-o-transition", null), "transition-delay" => array("-moz-transition-delay", "-webkit-transition-delay", "-o-transition-delay", null), "transition-duration" => array("-moz-transition-duration", "-webkit-transition-duration", "-o-transition-duration", null), "transition-property" => array("-moz-transition-property", "-webkit-transition-property", "-o-transition-property", null), "transition-timing-function" => array("-moz-transition-timing-function", "-webkit-transition-timing-function", "-o-transition-timing-function", null), "user-drag" => array(null, "-webkit-user-drag", null, null), "user-focus" => array("-moz-user-focus", null, null, null), "user-input" => array("-moz-user-input", null, null, null), "user-modify" => array("-moz-user-modify", "-webkit-user-modify", null, null), "user-select" => array("-moz-user-select", "-webkit-user-select", null, null), "white-space" => array(__CLASS__, "whiteSpace"), "window-shadow" => array("-moz-window-shadow", null, null, null), "word-break" => array(null, null, null, "-ms-word-break"), "word-wrap" => array(null, null, null, "-ms-word-wrap"), "writing-mode" => array(null, "-webkit-writing-mode", null, "-ms-writing-mode"), "zoom" => array(null, null, null, "-ms-zoom") ); public function apply(array &$tokens) { $r = 0; $transformations = &$this->transformations; for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssRulesetDeclarationToken") { $tProperty = $tokens[$i]->Property; if (isset($transformations[$tProperty])) { $result = array(); if (is_callable($transformations[$tProperty])) { $result = call_user_func_array($transformations[$tProperty], array($tokens[$i])); if (!is_array($result) && is_object($result)) { $result = array($result); } } else { $tValue = $tokens[$i]->Value; $tMediaTypes = $tokens[$i]->MediaTypes; foreach ($transformations[$tProperty] as $property) { if ($property !== null) { $result[] = new CssRulesetDeclarationToken($property, $tValue, $tMediaTypes); } } } if (count($result) > 0) { array_splice($tokens, $i + 1, 0, $result); $i += count($result); $l += count($result); } } } } return $r; } private static function filter($token) { $r = array ( new CssRulesetDeclarationToken("-ms-filter", "\"" . $token->Value . "\"", $token->MediaTypes), ); return $r; } private static function opacity($token) { $ieValue = (int) ((float) $token->Value * 100); $r = array ( new CssRulesetDeclarationToken("-ms-filter", "\"alpha(opacity=" . $ieValue . ")\"", $token->MediaTypes), new CssRulesetDeclarationToken("filter", "alpha(opacity=" . $ieValue . ")", $token->MediaTypes), new CssRulesetDeclarationToken("zoom", "1", $token->MediaTypes) ); return $r; } private static function whiteSpace($token) { if (strtolower($token->Value) === "pre-wrap") { $r = array ( new CssRulesetDeclarationToken("white-space", "-moz-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("white-space", "-webkit-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("white-space", "-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("white-space", "-o-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("word-wrap", "break-word", $token->MediaTypes) ); return $r; } else { return array(); } } } class CssConvertLevel3AtKeyframesMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; $transformations = array("-moz-keyframes", "-webkit-keyframes"); for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtKeyframesStartToken") { for ($ii = $i; $ii < $l; $ii++) { if (get_class($tokens[$ii]) === "CssAtKeyframesEndToken") { break; } } if (get_class($tokens[$ii]) === "CssAtKeyframesEndToken") { $add = array(); $source = array(); for ($iii = $i; $iii <= $ii; $iii++) { $source[] = clone($tokens[$iii]); } foreach ($transformations as $transformation) { $t = array(); foreach ($source as $token) { $t[] = clone($token); } $t[0]->AtRuleName = $transformation; $add = array_merge($add, $t); } if (isset($this->configuration["RemoveSource"]) && $this->configuration["RemoveSource"] === true) { array_splice($tokens, $i, $ii - $i + 1, $add); } else { array_splice($tokens, $ii + 1, 0, $add); } $l = count($tokens); $i = $ii + count($add); $r += count($add); } } } return $r; } } class CssConvertHslColorsMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/^hsl\s*\(\s*([0-9]+)\s*,\s*([0-9]+)\s*%\s*,\s*([0-9]+)\s*%\s*\)/iS"; public function apply(aCssToken &$token) { if (stripos($token->Value, "hsl") !== false && preg_match($this->reMatch, $token->Value, $m)) { $token->Value = str_replace($m[0], $this->hsl2hex($m[1], $m[2], $m[3]), $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } private function hsl2hex($hue, $saturation, $lightness) { $hue = $hue / 360; $saturation = $saturation / 100; $lightness = $lightness / 100; if ($saturation == 0) { $red = $lightness * 255; $green = $lightness * 255; $blue = $lightness * 255; } else { if ($lightness < 0.5 ) { $v2 = $lightness * (1 + $saturation); } else { $v2 = ($lightness + $saturation) - ($saturation * $lightness); } $v1 = 2 * $lightness - $v2; $red = 255 * self::hue2rgb($v1, $v2, $hue + (1 / 3)); $green = 255 * self::hue2rgb($v1, $v2, $hue); $blue = 255 * self::hue2rgb($v1, $v2, $hue - (1 / 3)); } return "#" . str_pad(dechex(round($red)), 2, "0", STR_PAD_LEFT) . str_pad(dechex(round($green)), 2, "0", STR_PAD_LEFT) . str_pad(dechex(round($blue)), 2, "0", STR_PAD_LEFT); } private function hue2rgb($v1, $v2, $hue) { if ($hue < 0) { $hue += 1; } if ($hue > 1) { $hue -= 1; } if ((6 * $hue) < 1) { return ($v1 + ($v2 - $v1) * 6 * $hue); } if ((2 * $hue) < 1) { return ($v2); } if ((3 * $hue) < 2) { return ($v1 + ($v2 - $v1) * (( 2 / 3) - $hue) * 6); } return $v1; } } class CssConvertFontWeightMinifierPlugin extends aCssMinifierPlugin { private $include = array ( "font", "font-weight" ); private $reMatch = null; private $reReplace = "\"\${1}\" . \$this->transformation[\"\${2}\"] . \"\${3}\""; private $transformation = array ( "normal" => "400", "bold" => "700" ); public function __construct(CssMinifier $minifier) { $this->reMatch = "/(^|\s)+(" . implode("|", array_keys($this->transformation)). ")(\s|$)+/eiS"; parent::__construct($minifier); } public function apply(aCssToken &$token) { if (in_array($token->Property, $this->include) && preg_match($this->reMatch, $token->Value, $m)) { $token->Value = preg_replace($this->reMatch, $this->reReplace, $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCompressUnitValuesMinifierPlugin extends aCssMinifierPlugin { private $re = array ( "/(^| |-)0\.([0-9]+?)(0+)?(%|em|ex|px|in|cm|mm|pt|pc)/iS" => "\${1}.\${2}\${4}", "/(^| )-?(\.?)0(%|em|ex|px|in|cm|mm|pt|pc)/iS" => "\${1}0", "/(^0\s0\s0\s0)|(^0\s0\s0$)|(^0\s0$)/iS" => "0" ); private $reMatch = "/(^| |-)0\.([0-9]+?)(0+)?(%|em|ex|px|in|cm|mm|pt|pc)|(^| )-?(\.?)0(%|em|ex|px|in|cm|mm|pt|pc)|(^0\s0\s0\s0$)|(^0\s0\s0$)|(^0\s0$)/iS"; public function apply(aCssToken &$token) { if (preg_match($this->reMatch, $token->Value)) { foreach ($this->re as $reMatch => $reReplace) { $token->Value = preg_replace($reMatch, $reReplace, $token->Value); } } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCompressExpressionValuesMinifierPlugin extends aCssMinifierPlugin { public function apply(aCssToken &$token) { if (class_exists("JSMin") && stripos($token->Value, "expression(") !== false) { $value = $token->Value; $value = substr($token->Value, stripos($token->Value, "expression(") + 10); $value = trim(JSMin::minify($value)); $token->Value = "expression(" . $value . ")"; } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCompressColorValuesMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/\#([0-9a-f]{6})/iS"; public function apply(aCssToken &$token) { if (strpos($token->Value, "#") !== false && preg_match($this->reMatch, $token->Value, $m)) { $value = strtolower($m[1]); if ($value[0] == $value[1] && $value[2] == $value[3] && $value[4] == $value[5]) { $token->Value = str_replace($m[0], "#" . $value[0] . $value[2] . $value[4], $token->Value); } } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCommentToken extends aCssToken { public $Comment = ""; public function __construct($comment) { $this->Comment = $comment; } public function __toString() { return $this->Comment; } } class CssCommentParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("*", "/"); } public function getTriggerStates() { return false; } private $restoreBuffer = ""; public function parse($index, $char, $previousChar, $state) { if ($char === "*" && $previousChar === "/" && $state !== "T_COMMENT") { $this->parser->pushState("T_COMMENT"); $this->parser->setExclusive(__CLASS__); $this->restoreBuffer = substr($this->parser->getAndClearBuffer(), 0, -2); } elseif ($char === "/" && $previousChar === "*" && $state === "T_COMMENT") { $this->parser->popState(); $this->parser->unsetExclusive(); $this->parser->appendToken(new CssCommentToken("/*" . $this->parser->getAndClearBuffer())); $this->parser->setBuffer($this->restoreBuffer); } else { return false; } return true; } } class CssAtVariablesStartToken extends aCssAtBlockStartToken { public $MediaTypes = array(); public function __construct($mediaTypes = null) { $this->MediaTypes = $mediaTypes ? $mediaTypes : array("all"); } public function __toString() { return ""; } } class CssAtVariablesParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_VARIABLES::PREPARE", "T_AT_VARIABLES", "T_AT_VARIABLES_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 10)) === "@variables") { $this->parser->pushState("T_AT_VARIABLES::PREPARE"); $this->parser->clearBuffer(); return $index + 10; } elseif ($char === "{" && $state === "T_AT_VARIABLES::PREPARE") { $this->parser->setState("T_AT_VARIABLES"); $mediaTypes = array_filter(array_map("trim", explode(",", $this->parser->getAndClearBuffer("{")))); $this->parser->appendToken(new CssAtVariablesStartToken($mediaTypes)); } if ($char === ":" && $state === "T_AT_VARIABLES") { $this->buffer = $this->parser->getAndClearBuffer(":"); $this->parser->pushState("T_AT_VARIABLES_DECLARATION"); } elseif ($char === ":" && $state === "T_AT_VARIABLES_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @variables declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_AT_VARIABLES_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtVariablesDeclarationToken($this->buffer, $value, $isImportant)); $this->buffer = ""; } elseif ($char === "}" && $state === "T_AT_VARIABLES") { $this->parser->popState(); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtVariablesEndToken()); } else { return false; } return true; } } class CssAtVariablesEndToken extends aCssAtBlockEndToken { public function __toString() { return ""; } } class CssAtVariablesDeclarationToken extends aCssDeclarationToken { public function __toString() { return ""; } } class CssAtPageStartToken extends aCssAtBlockStartToken { public $Selector = ""; public function __construct($selector = "") { $this->Selector = $selector; } public function __toString() { return "@page" . ($this->Selector ? " " . $this->Selector : "") . "{"; } } class CssAtPageParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_PAGE::SELECTOR", "T_AT_PAGE", "T_AT_PAGE_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 5)) === "@page") { $this->parser->pushState("T_AT_PAGE::SELECTOR"); $this->parser->clearBuffer(); return $index + 5; } elseif ($char === "{" && $state === "T_AT_PAGE::SELECTOR") { $selector = $this->parser->getAndClearBuffer("{"); $this->parser->setState("T_AT_PAGE"); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtPageStartToken($selector)); } elseif ($char === ":" && $state === "T_AT_PAGE") { $this->parser->pushState("T_AT_PAGE_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":", true); } elseif ($char === ":" && $state === "T_AT_PAGE_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @page declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state == "T_AT_PAGE_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) == "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtPageDeclarationToken($this->buffer, $value, $isImportant)); if ($char === "}") { $this->parser->popState(); $this->parser->appendToken(new CssAtPageEndToken()); } $this->buffer = ""; } elseif ($char === "}" && $state === "T_AT_PAGE") { $this->parser->popState(); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtPageEndToken()); } else { return false; } return true; } } class CssAtPageEndToken extends aCssAtBlockEndToken { } class CssAtPageDeclarationToken extends aCssDeclarationToken { } class CssAtMediaStartToken extends aCssAtBlockStartToken { public $MediaTypes = []; public function __construct(array $mediaTypes = array()) { $this->MediaTypes = $mediaTypes; } public function __toString() { return "@media " . implode(",", $this->MediaTypes) . "{"; } } class CssAtMediaParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_MEDIA::PREPARE", "T_AT_MEDIA"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 6)) === "@media") { $this->parser->pushState("T_AT_MEDIA::PREPARE"); $this->parser->clearBuffer(); return $index + 6; } elseif ($char === "{" && $state === "T_AT_MEDIA::PREPARE") { $mediaTypes = array_filter(array_map("trim", explode(",", $this->parser->getAndClearBuffer("{")))); $this->parser->setMediaTypes($mediaTypes); $this->parser->setState("T_AT_MEDIA"); $this->parser->appendToken(new CssAtMediaStartToken($mediaTypes)); } elseif ($char === "}" && $state === "T_AT_MEDIA") { $this->parser->appendToken(new CssAtMediaEndToken()); $this->parser->clearBuffer(); $this->parser->unsetMediaTypes(); $this->parser->popState(); } else { return false; } return true; } } class CssAtMediaEndToken extends aCssAtBlockEndToken { } class CssAtKeyframesStartToken extends aCssAtBlockStartToken { public $AtRuleName = "keyframes"; public $Name = ""; public function __construct($name, $atRuleName = null) { $this->Name = $name; if (!is_null($atRuleName)) { $this->AtRuleName = $atRuleName; } } public function __toString() { return "@" . $this->AtRuleName . " " . $this->Name . "{"; } } class CssAtKeyframesRulesetStartToken extends aCssRulesetStartToken { public $Selectors = array(); public function __construct(array $selectors = array()) { $this->Selectors = $selectors; } public function __toString() { return implode(",", $this->Selectors) . "{"; } } class CssAtKeyframesRulesetEndToken extends aCssRulesetEndToken { } class CssAtKeyframesRulesetDeclarationToken extends aCssDeclarationToken { } class CssAtKeyframesParserPlugin extends aCssParserPlugin { private $atRuleName = ""; private $selectors = array(); public function getTriggerChars() { return array("@", "{", "}", ":", ",", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_KEYFRAMES::NAME", "T_AT_KEYFRAMES", "T_AT_KEYFRAMES_RULESETS", "T_AT_KEYFRAMES_RULESET", "T_AT_KEYFRAMES_RULESET_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 10)) === "@keyframes") { $this->atRuleName = "keyframes"; $this->parser->pushState("T_AT_KEYFRAMES::NAME"); $this->parser->clearBuffer(); return $index + 10; } elseif ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 15)) === "@-moz-keyframes") { $this->atRuleName = "-moz-keyframes"; $this->parser->pushState("T_AT_KEYFRAMES::NAME"); $this->parser->clearBuffer(); return $index + 15; } elseif ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 18)) === "@-webkit-keyframes") { $this->atRuleName = "-webkit-keyframes"; $this->parser->pushState("T_AT_KEYFRAMES::NAME"); $this->parser->clearBuffer(); return $index + 18; } elseif ($char === "{" && $state === "T_AT_KEYFRAMES::NAME") { $name = $this->parser->getAndClearBuffer("{\"'"); $this->parser->setState("T_AT_KEYFRAMES_RULESETS"); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtKeyframesStartToken($name, $this->atRuleName)); } if ($char === "," && $state === "T_AT_KEYFRAMES_RULESETS") { $this->selectors[] = $this->parser->getAndClearBuffer(",{"); } elseif ($char === "{" && $state === "T_AT_KEYFRAMES_RULESETS") { if ($this->parser->getBuffer() !== "") { $this->selectors[] = $this->parser->getAndClearBuffer(",{"); $this->parser->pushState("T_AT_KEYFRAMES_RULESET"); $this->parser->appendToken(new CssAtKeyframesRulesetStartToken($this->selectors)); $this->selectors = array(); } } elseif ($char === ":" && $state === "T_AT_KEYFRAMES_RULESET") { $this->parser->pushState("T_AT_KEYFRAMES_RULESET_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":;", true); } elseif ($char === ":" && $state === "T_AT_KEYFRAMES_RULESET_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @keyframes ruleset declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_AT_KEYFRAMES_RULESET_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtKeyframesRulesetDeclarationToken($this->buffer, $value, $isImportant)); if ($char === "}") { $this->parser->appendToken(new CssAtKeyframesRulesetEndToken()); $this->parser->popState(); } $this->buffer = ""; } elseif ($char === "}" && $state === "T_AT_KEYFRAMES_RULESET") { $this->parser->clearBuffer(); $this->parser->popState(); $this->parser->appendToken(new CssAtKeyframesRulesetEndToken()); } elseif ($char === "}" && $state === "T_AT_KEYFRAMES_RULESETS") { $this->parser->clearBuffer(); $this->parser->popState(); $this->parser->appendToken(new CssAtKeyframesEndToken()); } else { return false; } return true; } } class CssAtKeyframesEndToken extends aCssAtBlockEndToken { } class CssAtImportToken extends aCssToken { public $Import = ""; public $MediaTypes = array(); public function __construct($import, $mediaTypes) { $this->Import = $import; $this->MediaTypes = $mediaTypes ? $mediaTypes : array(); } public function __toString() { return "@import \"" . $this->Import . "\"" . (count($this->MediaTypes) > 0 ? " " . implode(",", $this->MediaTypes) : ""). ";"; } } class CssAtImportParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", ";", ",", "\n"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_IMPORT"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 7)) === "@import") { $this->parser->pushState("T_AT_IMPORT"); $this->parser->clearBuffer(); return $index + 7; } elseif (($char === ";" || $char === "\n") && $state === "T_AT_IMPORT") { $this->buffer = $this->parser->getAndClearBuffer(";"); $pos = false; foreach (array(")", "\"", "'") as $needle) { if (($pos = strrpos($this->buffer, $needle)) !== false) { break; } } $import = substr($this->buffer, 0, $pos + 1); if (stripos($import, "url(") === 0) { $import = substr($import, 4, -1); } $import = trim($import, " \t\n\r\0\x0B'\""); $mediaTypes = array_filter(array_map("trim", explode(",", trim(substr($this->buffer, $pos + 1), " \t\n\r\0\x0B{")))); if ($pos) { $this->parser->appendToken(new CssAtImportToken($import, $mediaTypes)); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Invalid @import at-rule syntax", $this->parser->buffer)); } $this->parser->popState(); } else { return false; } return true; } } class CssAtFontFaceStartToken extends aCssAtBlockStartToken { public function __toString() { return "@font-face{"; } } class CssAtFontFaceParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_FONT_FACE::PREPARE", "T_AT_FONT_FACE", "T_AT_FONT_FACE_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 10)) === "@font-face") { $this->parser->pushState("T_AT_FONT_FACE::PREPARE"); $this->parser->clearBuffer(); return $index + 10; } elseif ($char === "{" && $state === "T_AT_FONT_FACE::PREPARE") { $this->parser->setState("T_AT_FONT_FACE"); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtFontFaceStartToken()); } elseif ($char === ":" && $state === "T_AT_FONT_FACE") { $this->parser->pushState("T_AT_FONT_FACE_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":", true); } elseif ($char === ":" && $state === "T_AT_FONT_FACE_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @font-face declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_AT_FONT_FACE_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtFontFaceDeclarationToken($this->buffer, $value, $isImportant)); $this->buffer = ""; if ($char === "}") { $this->parser->appendToken(new CssAtFontFaceEndToken()); $this->parser->popState(); } } elseif ($char === "}" && $state === "T_AT_FONT_FACE") { $this->parser->appendToken(new CssAtFontFaceEndToken()); $this->parser->clearBuffer(); $this->parser->popState(); } else { return false; } return true; } } class CssAtFontFaceEndToken extends aCssAtBlockEndToken { } class CssAtFontFaceDeclarationToken extends aCssDeclarationToken { } class CssAtCharsetToken extends aCssToken { public $Charset = ""; public function __construct($charset) { $this->Charset = $charset; } public function __toString() { return "@charset " . $this->Charset . ";"; } } class CssAtCharsetParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", ";", "\n"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_CHARSET"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 8)) === "@charset") { $this->parser->pushState("T_AT_CHARSET"); $this->parser->clearBuffer(); return $index + 8; } elseif (($char === ";" || $char === "\n") && $state === "T_AT_CHARSET") { $charset = $this->parser->getAndClearBuffer(";"); $this->parser->popState(); $this->parser->appendToken(new CssAtCharsetToken($charset)); } else { return false; } return true; } } -?> diff --git a/include/minify/LICENSE b/include/minify/LICENSE new file mode 100644 index 000000000..0c0d08a79 --- /dev/null +++ b/include/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. diff --git a/include/minify/data/js/keywords_after.txt b/include/minify/data/js/keywords_after.txt new file mode 100644 index 000000000..5c8cba7f3 --- /dev/null +++ b/include/minify/data/js/keywords_after.txt @@ -0,0 +1,7 @@ +in +public +extends +private +protected +implements +instanceof \ No newline at end of file diff --git a/include/minify/data/js/keywords_before.txt b/include/minify/data/js/keywords_before.txt new file mode 100644 index 000000000..5abf35799 --- /dev/null +++ b/include/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 \ No newline at end of file diff --git a/include/minify/data/js/keywords_reserved.txt b/include/minify/data/js/keywords_reserved.txt new file mode 100644 index 000000000..2a3ad3c0e --- /dev/null +++ b/include/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 \ No newline at end of file diff --git a/include/minify/data/js/operators.txt b/include/minify/data/js/operators.txt new file mode 100644 index 000000000..e66229ae1 --- /dev/null +++ b/include/minify/data/js/operators.txt @@ -0,0 +1,46 @@ ++ +- +* +/ +% += ++= +-= +*= +/= +%= +<<= +>>= +>>>= +&= +^= +|= +& +| +^ +~ +<< +>> +>>> +== +=== +!= +!== +> +< +>= +<= +&& +|| +! +. +[ +] +? +: +, +; +( +) +{ +} \ No newline at end of file diff --git a/include/minify/data/js/operators_after.txt b/include/minify/data/js/operators_after.txt new file mode 100644 index 000000000..71a9b7091 --- /dev/null +++ b/include/minify/data/js/operators_after.txt @@ -0,0 +1,43 @@ ++ +- +* +/ +% += ++= +-= +*= +/= +%= +<<= +>>= +>>>= +&= +^= +|= +& +| +^ +<< +>> +>>> +== +=== +!= +!== +> +< +>= +<= +&& +|| +. +[ +] +? +: +, +; +( +) +} \ No newline at end of file diff --git a/include/minify/data/js/operators_before.txt b/include/minify/data/js/operators_before.txt new file mode 100644 index 000000000..ff50d8703 --- /dev/null +++ b/include/minify/data/js/operators_before.txt @@ -0,0 +1,43 @@ ++ +- +* +/ +% += ++= +-= +*= +/= +%= +<<= +>>= +>>>= +&= +^= +|= +& +| +^ +~ +<< +>> +>>> +== +=== +!= +!== +> +< +>= +<= +&& +|| +! +. +[ +? +: +, +; +( +{ diff --git a/include/minify/path-converter/LICENSE b/include/minify/path-converter/LICENSE new file mode 100644 index 000000000..491295ad3 --- /dev/null +++ b/include/minify/path-converter/LICENSE @@ -0,0 +1,18 @@ +Copyright (c) 2015 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. diff --git a/include/minify/path-converter/src/Converter.php b/include/minify/path-converter/src/Converter.php new file mode 100644 index 000000000..80cf269b9 --- /dev/null +++ b/include/minify/path-converter/src/Converter.php @@ -0,0 +1,204 @@ + + * @copyright Copyright (c) 2015, Matthias Mullie. All rights reserved + * @license MIT License + */ +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('/[^\/]+(? $chunk) { + if (isset($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; + } +} diff --git a/include/minify/path-converter/src/ConverterInterface.php b/include/minify/path-converter/src/ConverterInterface.php new file mode 100644 index 000000000..dc1b76573 --- /dev/null +++ b/include/minify/path-converter/src/ConverterInterface.php @@ -0,0 +1,24 @@ + + * @copyright Copyright (c) 2015, Matthias Mullie. All rights reserved + * @license MIT License + */ +interface ConverterInterface +{ + /** + * Convert file paths. + * + * @param string $path The path to be converted + * + * @return string The new path + */ + public function convert($path); +} diff --git a/include/minify/path-converter/src/NoConverter.php b/include/minify/path-converter/src/NoConverter.php new file mode 100644 index 000000000..2fcfd0f20 --- /dev/null +++ b/include/minify/path-converter/src/NoConverter.php @@ -0,0 +1,23 @@ + + * @copyright Copyright (c) 2015, Matthias Mullie. All rights reserved + * @license MIT License + */ +class NoConverter implements ConverterInterface +{ + /** + * {@inheritdoc} + */ + public function convert($path) + { + return $path; + } +} diff --git a/include/minify/src/CSS.php b/include/minify/src/CSS.php new file mode 100644 index 000000000..34f6bc910 --- /dev/null +++ b/include/minify/src/CSS.php @@ -0,0 +1,897 @@ + + * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved + * @license MIT License + */ + +namespace MatthiasMullie\Minify; + +use MatthiasMullie\Minify\Exceptions\FileImportException; +use MatthiasMullie\Minify\Exceptions\PatternMatchException; +use MatthiasMullie\PathConverter\Converter; +use MatthiasMullie\PathConverter\ConverterInterface; + +/** + * 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\()?(?P["\']?).+?(?P=quotes)(?(url)\)));?/', $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's 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\( + + # (optional) open path enclosure + (?P["\']?) + + # fetch path + (?P.+?) + + # (optional) close path enclosure + (?P=quotes) + + # close url() + \) + + # (optional) trailing whitespace + \s* + + # (optional) media statement(s) + (?P[^;]*) + + # (optional) trailing whitespace + \s* + + # (optional) closing semi-colon + ;? + + /ix', + + // @import 'xxx' + '/ + + # import statement + @import + + # whitespace + \s+ + + # open path enclosure + (?P["\']) + + # fetch path + (?P.+?) + + # close path enclosure + (?P=quotes) + + # (optional) trailing whitespace + \s* + + # (optional) media statement(s) + (?P[^;]*) + + # (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[] $parents Parent paths, for circular reference checks + * + * @return string The minified data + * + * @throws PatternMatchException + */ + public function execute($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 = $this->convertLegacyColors($css); + $css = $this->cleanupModernColors($css); + $css = $this->shortenHEXColors($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\( + + \s* + + # open path enclosure + (?P["\'])? + + # fetch path + (?P.+?) + + # close path enclosure + (?(quotes)(?P=quotes)) + + \s* + + # close url() + \) + + /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["\']) + + # fetch path + (?P.+?) + + # 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. + * #FF0000FF -> #f00 -> red + * #FF00FF00 -> transparent. + * + * @param string $content The CSS content to shorten the HEX color codes for + * + * @return string + */ + protected function shortenHexColors($content) + { + // shorten repeating patterns within HEX .. + $content = preg_replace('/(?<=[: ])#([0-9a-f])\\1([0-9a-f])\\2([0-9a-f])\\3(?:([0-9a-f])\\4)?(?=[; }])/i', '#$1$2$3$4', $content); + + // remove alpha channel if it's pointless .. + $content = preg_replace('/(?<=[: ])#([0-9a-f]{6})ff(?=[; }])/i', '#$1', $content); + $content = preg_replace('/(?<=[: ])#([0-9a-f]{3})f(?=[; }])/i', '#$1', $content); + + // replace `transparent` with shortcut .. + $content = preg_replace('/(?<=[: ])#[0-9a-f]{6}00(?=[; }])/i', '#fff0', $content); + + $colors = array( + // make these more readable + '#00f' => 'blue', + '#dc143c' => 'crimson', + '#0ff' => 'cyan', + '#8b0000' => 'darkred', + '#696969' => 'dimgray', + '#ff69b4' => 'hotpink', + '#0f0' => 'lime', + '#fdf5e6' => 'oldlace', + '#87ceeb' => 'skyblue', + '#d8bfd8' => 'thistle', + // we can shorten some even more by replacing them with their color name + '#f0ffff' => 'azure', + '#f5f5dc' => 'beige', + '#ffe4c4' => 'bisque', + '#a52a2a' => 'brown', + '#ff7f50' => 'coral', + '#ffd700' => 'gold', + '#808080' => 'gray', + '#008000' => 'green', + '#4b0082' => 'indigo', + '#fffff0' => 'ivory', + '#f0e68c' => 'khaki', + '#faf0e6' => 'linen', + '#800000' => 'maroon', + '#000080' => 'navy', + '#808000' => 'olive', + '#ffa500' => 'orange', + '#da70d6' => 'orchid', + '#cd853f' => 'peru', + '#ffc0cb' => 'pink', + '#dda0dd' => 'plum', + '#800080' => 'purple', + '#f00' => 'red', + '#fa8072' => 'salmon', + '#a0522d' => 'sienna', + '#c0c0c0' => 'silver', + '#fffafa' => 'snow', + '#d2b48c' => 'tan', + '#008080' => 'teal', + '#ff6347' => 'tomato', + '#ee82ee' => 'violet', + '#f5deb3' => 'wheat', + // or the other way around + 'black' => '#000', + 'fuchsia' => '#f0f', + 'magenta' => '#f0f', + 'white' => '#fff', + 'yellow' => '#ff0', + // and also `transparent` + 'transparent' => '#fff0', + ); + + return preg_replace_callback( + '/(?<=[: ])(' . implode('|', array_keys($colors)) . ')(?=[; }])/i', + function ($match) use ($colors) { + return $colors[strtolower($match[0])]; + }, + $content + ); + } + + /** + * Convert RGB|HSL color codes. + * rgb(255,0,0,.5) -> rgb(255 0 0 / .5). + * rgb(255,0,0) -> #f00. + * + * @param string $content The CSS content to shorten the RGB color codes for + * + * @return string + */ + protected function convertLegacyColors($content) + { + /* + https://drafts.csswg.org/css-color/#color-syntax-legacy + https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/rgb + https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/hsl + */ + + // convert legacy color syntax + $content = preg_replace('/(rgb)a?\(\s*([0-9]{1,3}%?)\s*,\s*([0-9]{1,3}%?)\s*,\s*([0-9]{1,3}%?)\s*,\s*([0,1]?(?:\.[0-9]*)?)\s*\)/i', '$1($2 $3 $4 / $5)', $content); + $content = preg_replace('/(rgb)a?\(\s*([0-9]{1,3}%?)\s*,\s*([0-9]{1,3}%?)\s*,\s*([0-9]{1,3}%?)\s*\)/i', '$1($2 $3 $4)', $content); + $content = preg_replace('/(hsl)a?\(\s*([0-9]+(?:deg|grad|rad|turn)?)\s*,\s*([0-9]{1,3}%)\s*,\s*([0-9]{1,3}%)\s*,\s*([0,1]?(?:\.[0-9]*)?)\s*\)/i', '$1($2 $3 $4 / $5)', $content); + $content = preg_replace('/(hsl)a?\(\s*([0-9]+(?:deg|grad|rad|turn)?)\s*,\s*([0-9]{1,3}%)\s*,\s*([0-9]{1,3}%)\s*\)/i', '$1($2 $3 $4)', $content); + + // convert `rgb` to `hex` + $dec = '([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])'; + + return preg_replace_callback( + "/rgb\($dec $dec $dec\)/i", + function ($match) { + return sprintf('#%02x%02x%02x', $match[1], $match[2], $match[3]); + }, + $content + ); + } + + /** + * Cleanup RGB|HSL|HWB|LCH|LAB + * rgb(255 0 0 / 1) -> rgb(255 0 0). + * rgb(255 0 0 / 0) -> transparent. + * + * @param string $content The CSS content to cleanup HSL|HWB|LCH|LAB + * + * @return string + */ + protected function cleanupModernColors($content) + { + /* + https://drafts.csswg.org/css-color/#color-syntax-modern + https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/hwb + https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/lch + https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/lab + https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/oklch + https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/oklab + */ + $tag = '(rgb|hsl|hwb|(?:(?:ok)?(?:lch|lab)))'; + + // remove alpha channel if it's pointless .. + $content = preg_replace('/' . $tag . '\(\s*([^\s)]+)\s+([^\s)]+)\s+([^\s)]+)\s+\/\s+1(?:(?:\.\d?)*|00%)?\s*\)/i', '$1($2 $3 $4)', $content); + + // replace `transparent` with shortcut .. + $content = preg_replace('/' . $tag . '\(\s*[^\s)]+\s+[^\s)]+\s+[^\s)]+\s+\/\s+0(?:[\.0%]*)?\s*\)/i', '#fff0', $content); + + return $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 $content The CSS content to strip the whitespace for + * + * @return string + * + * @throws PatternMatchException + */ + protected function stripWhitespace($content) + { + // remove leading & trailing whitespace + $content = $this->pregReplace('/^\s*/m', '', $content); + $content = $this->pregReplace('/\s*$/m', '', $content); + + // replace newlines with a single space + $content = $this->pregReplace('/\s+/', ' ', $content); + + // remove whitespace around meta characters + // inspired by stackoverflow.com/questions/15195750/minify-compress-css-with-regex + $content = $this->pregReplace('/\s*([\*$~^|]?+=|[{};,>~]|!important\b)\s*/', '$1', $content); + $content = $this->pregReplace('/([\[(:>\+])\s+/', '$1', $content); + $content = $this->pregReplace('/\s+([\]\)>\+])/', '$1', $content); + $content = $this->pregReplace('/\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 = $this->pregReplace('/:(' . 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); + } + + /** + * Perform a preg_replace and check for errors. + * + * @param string $pattern Pattern + * @param string $replacement Replacement + * @param string $subject String to process + * + * @return string + * + * @throws PatternMatchException + */ + protected function pregReplace($pattern, $replacement, $subject) + { + $result = preg_replace($pattern, $replacement, $subject); + if ($result === null) { + throw PatternMatchException::fromLastError("Failed to replace with pattern '$pattern'"); + } + + return $result; + } + + /** + * 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); + } +} diff --git a/include/minify/src/Exception.php b/include/minify/src/Exception.php new file mode 100644 index 000000000..1c9587c41 --- /dev/null +++ b/include/minify/src/Exception.php @@ -0,0 +1,20 @@ + + */ + +namespace MatthiasMullie\Minify; + +/** + * Base Exception Class. + * + * @deprecated Use Exceptions\BasicException instead + * + * @author Matthias Mullie + */ +abstract class Exception extends \Exception {} diff --git a/include/minify/src/Exceptions/BasicException.php b/include/minify/src/Exceptions/BasicException.php new file mode 100644 index 000000000..ae73f22d7 --- /dev/null +++ b/include/minify/src/Exceptions/BasicException.php @@ -0,0 +1,22 @@ + + * @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 + */ +abstract class BasicException extends Exception {} diff --git a/include/minify/src/Exceptions/FileImportException.php b/include/minify/src/Exceptions/FileImportException.php new file mode 100644 index 000000000..f0b4c6cf0 --- /dev/null +++ b/include/minify/src/Exceptions/FileImportException.php @@ -0,0 +1,20 @@ + + * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved + * @license MIT License + */ + +namespace MatthiasMullie\Minify\Exceptions; + +/** + * File Import Exception Class. + * + * @author Matthias Mullie + */ +class FileImportException extends BasicException {} diff --git a/include/minify/src/Exceptions/IOException.php b/include/minify/src/Exceptions/IOException.php new file mode 100644 index 000000000..a1ccedd9d --- /dev/null +++ b/include/minify/src/Exceptions/IOException.php @@ -0,0 +1,20 @@ + + * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved + * @license MIT License + */ + +namespace MatthiasMullie\Minify\Exceptions; + +/** + * IO Exception Class. + * + * @author Matthias Mullie + */ +class IOException extends BasicException {} diff --git a/include/minify/src/Exceptions/PatternMatchException.php b/include/minify/src/Exceptions/PatternMatchException.php new file mode 100644 index 000000000..ef41b1a64 --- /dev/null +++ b/include/minify/src/Exceptions/PatternMatchException.php @@ -0,0 +1,36 @@ + + * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved + * @license MIT License + */ + +namespace MatthiasMullie\Minify\Exceptions; + +/** + * Pattern Match Exception Class. + * + * @author Ere Maijala + */ +class PatternMatchException extends BasicException +{ + /** + * Create an exception from preg_last_error. + * + * @param string $msg Error message + */ + public static function fromLastError($msg) + { + $msg .= ': Error ' . preg_last_error(); + if (PHP_MAJOR_VERSION >= 8) { + $msg .= ' - ' . preg_last_error_msg(); + } + + return new PatternMatchException($msg); + } +} diff --git a/include/minify/src/JS.php b/include/minify/src/JS.php new file mode 100644 index 000000000..806bf0ce8 --- /dev/null +++ b/include/minify/src/JS.php @@ -0,0 +1,618 @@ + + * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved + * @license MIT License + */ + +namespace MatthiasMullie\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 JS 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 = array(); + + /** + * List of JavaScript reserved words that accept a + * 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 = array(); + + /** + * List of JavaScript reserved words that accept a + * 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 = array(); + + /** + * 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 = array(); + + /** + * List of JavaScript operators that accept a 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 = array(); + + /** + * List of JavaScript operators that accept a 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 = array(); + + public function __construct() + { + call_user_func_array(array('\\MatthiasMullie\Minify\\Minify', '__construct'), func_get_args()); + + $dataDir = __DIR__ . '/../data/js/'; + $options = FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES; + $this->keywordsReserved = file($dataDir . 'keywords_reserved.txt', $options); + $this->keywordsBefore = file($dataDir . 'keywords_before.txt', $options); + $this->keywordsAfter = file($dataDir . 'keywords_after.txt', $options); + $this->operators = file($dataDir . 'operators.txt', $options); + $this->operatorsBefore = file($dataDir . 'operators_before.txt', $options); + $this->operatorsAfter = file($dataDir . 'operators_after.txt', $options); + } + + /** + * 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() + { + $this->stripMultilineComments(); + + // 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 `.`, + // 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( + '/(?%&|', $delimiter); + $operators['='] = '(?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 = '(? + * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved + * @license MIT License + */ + +namespace MatthiasMullie\Minify; + +use MatthiasMullie\Minify\Exceptions\IOException; +use MatthiasMullie\Minify\Exceptions\PatternMatchException; +use 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(); + + /** + * 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() + { + $minifier = $this; + // Pattern for matching comments that we want to preserve + $keepPattern = '/^ + # 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) + ) + /ixs'; + $callback = function ($match) use ($minifier, $keepPattern) { + if (preg_match($keepPattern, $match[1])) { + // Preserve the comment + $count = count($minifier->extracted); + $placeholder = '/*' . $count . '*/'; + $minifier->extracted[$placeholder] = $match[0]; + } else { + // Discard the comment but keep any single line feed + $placeholder = strncmp($match[0], "\n", 1) === 0 || substr($match[0], -1) === "\n" + ? "\n" + : ''; + } + + return $placeholder; + }; + + $this->registerPattern('/\n?\/\*(.*?)\*\/\n?/s', $callback); + } + + /** + * 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 $content The content to replace patterns in + * + * @return string The (manipulated) content + * + * @throws PatternMatchException + */ + protected function replace($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; + $matchResult = preg_match($pattern, $content, $match, PREG_OFFSET_CAPTURE, $processedOffset); + if ($matchResult) { + $matches[$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] = $match[0][1]; + } else { + if ($matchResult === false) { + throw PatternMatchException::fromLastError( + "Failed to match pattern '$pattern' at $processedOffset" + ); + } + // if the pattern couldn't be matched, there's no point in + // executing it again in later runs on this same content; + // ignore this one until we reach end of content + unset($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; + }; + + /* + * Quantifier {0,65535} is used instead of *? to avoid exceeding + * backtrack limit with large strings. 65535 is the maximum allowed + * (see https://www.php.net/manual/en/regexp.reference.repetition.php) + * and should be well sufficient for string representations here. + * + * 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 . '])(.{0,65535}?(?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; + } + + try { + return strlen($path) < PHP_MAXPATHLEN && @is_file($path) && is_readable($path); + } + // catch openbasedir exceptions which are not caught by @ on is_file() + catch (\Exception $e) { + return false; + } + } + + /** + * 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 $subject; + } +} diff --git a/include/template.class.php b/include/template.class.php index 6defdea6a..fbd759714 100644 --- a/include/template.class.php +++ b/include/template.class.php @@ -2056,10 +2056,15 @@ final class FileCombiner private static function process_css($css, $file, &$header) { $css = self::process_css_rec($css, dirname($file), $header); - if (strpos($file, '.min')===false and version_compare(PHP_VERSION, '5.2.4', '>=')) + if (strpos($file, '.min')===false) { - require_once(PHPWG_ROOT_PATH.'include/cssmin.class.php'); - $css = CssMin::minify($css, array('Variables'=>false)); + require_once(PHPWG_ROOT_PATH.'include/minify/src/Minify.php'); + require_once(PHPWG_ROOT_PATH.'include/minify/src/CSS.php'); + require_once(PHPWG_ROOT_PATH.'include/minify/path-converter/src/ConverterInterface.php'); + require_once(PHPWG_ROOT_PATH.'include/minify/path-converter/src/Converter.php'); + require_once(PHPWG_ROOT_PATH.'include/minify/path-converter/src/NoConverter.php'); + $minifier = new \MatthiasMullie\Minify\CSS($css); + $css = $minifier->minify(); } $css = trigger_change('combined_css_postfilter', $css); return $css;