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-rw-r--r--include/cssmin.class.php868
1 files changed, 868 insertions, 0 deletions
diff --git a/include/cssmin.class.php b/include/cssmin.class.php
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+<?php
+/**
+ * CssMin - A (simple) css minifier with benefits
+ *
+ * --
+ *
+ * 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
+ * @author Joe Scylla <joe.scylla@gmail.com>
+ * @copyright 2008 - 2010 Joe Scylla <joe.scylla@gmail.com>
+ * @license http://opensource.org/licenses/mit-license.php MIT License
+ * @version 2.0.1.0064 (2010-09-30)
+ */
+class CssMin
+ {
+ /**
+ * State: Is in document
+ *
+ * @var integer
+ */
+ const T_DOCUMENT = 1;
+ /**
+ * Token: Comment
+ *
+ * @var integer
+ */
+ const T_COMMENT = 2;
+ /**
+ * Token: Generic at-rule
+ *
+ * @var integer
+ */
+ const T_AT_RULE = 3;
+ /**
+ * Token: Start of @media block
+ *
+ * @var integer
+ */
+ const T_AT_MEDIA_START = 4;
+ /**
+ * State: Is in @media block
+ *
+ * @var integer
+ */
+ const T_AT_MEDIA = 5;
+ /**
+ * Token: End of @media block
+ *
+ * @var integer
+ */
+ const T_AT_MEDIA_END = 6;
+ /**
+ * Token: Start of @font-face block
+ *
+ * @var integer
+ */
+ const T_AT_FONT_FACE_START = 7;
+ /**
+ * State: Is in @font-face block
+ *
+ * @var integer
+ */
+ const T_AT_FONT_FACE = 8;
+ /**
+ * Token: @font-face declaration
+ *
+ * @var integer
+ */
+ const T_FONT_FACE_DECLARATION = 9;
+ /**
+ * Token: End of @font-face block
+ *
+ * @var integer
+ */
+ const T_AT_FONT_FACE_END = 10;
+ /**
+ * Token: Start of @page block
+ *
+ * @var integer
+ */
+ const T_AT_PAGE_START = 11;
+ /**
+ * State: Is in @page block
+ *
+ * @var integer
+ */
+ const T_AT_PAGE = 12;
+ /**
+ * Token: @page declaration
+ *
+ * @var integer
+ */
+ const T_PAGE_DECLARATION = 13;
+ /**
+ * Token: End of @page block
+ *
+ * @var integer
+ */
+ const T_AT_PAGE_END = 14;
+ /**
+ * Token: Start of ruleset
+ *
+ * @var integer
+ */
+ const T_RULESET_START = 15;
+ /**
+ * Token: Ruleset selectors
+ *
+ * @var integer
+ */
+ const T_SELECTORS = 16;
+ /**
+ * Token: Start of declarations
+ *
+ * @var integer
+ */
+ const T_DECLARATIONS_START = 17;
+ /**
+ * State: Is in declarations
+ *
+ * @var integer
+ */
+ const T_DECLARATIONS = 18;
+ /**
+ * Token: Declaration
+ *
+ * @var integer
+ */
+ const T_DECLARATION = 19;
+ /**
+ * Token: End of declarations
+ *
+ * @var integer
+ */
+ const T_DECLARATIONS_END = 20;
+ /**
+ * Token: End of ruleset
+ *
+ * @var integer
+ */
+ const T_RULESET_END = 21;
+ /**
+ * Token: Start of @variables block
+ *
+ * @var integer
+ */
+ const T_AT_VARIABLES_START = 100;
+ /**
+ * State: Is in @variables block
+ *
+ * @var integer
+ */
+ const T_AT_VARIABLES = 101;
+ /**
+ * Token: @variables declaration
+ *
+ * @var integer
+ */
+ const T_VARIABLE_DECLARATION = 102;
+ /**
+ * Token: End of @variables block
+ *
+ * @var integer
+ */
+ const T_AT_VARIABLES_END = 103;
+ /**
+ * State: Is in string
+ *
+ * @var integer
+ */
+ const T_STRING = 254;
+ /**
+ * State: Is in url string property
+ *
+ * @var integer
+ */
+ const T_STRING_URL = 255;
+ /**
+ * Css transformations table
+ *
+ * @var array
+ */
+ private static $transformations = array
+ (
+ "border-radius" => array("-moz-border-radius", "-webkit-border-radius", "-khtml-border-radius"),
+ "border-top-left-radius" => array("-moz-border-radius-topleft", "-webkit-border-top-left-radius", "-khtml-top-left-radius"),
+ "border-top-right-radius" => array("-moz-border-radius-topright", "-webkit-border-top-right-radius", "-khtml-top-right-radius"),
+ "border-bottom-right-radius" => array("-moz-border-radius-bottomright", "-webkit-border-bottom-right-radius", "-khtml-border-bottom-right-radius"),
+ "border-bottom-left-radius" => array("-moz-border-radius-bottomleft", "-webkit-border-bottom-left-radius", "-khtml-border-bottom-left-radius"),
+ "box-shadow" => array("-moz-box-shadow", "-webkit-box-shadow", "-khtml-box-shadow"),
+ "opacity" => array(array("CssMin", "_tOpacity")),
+ "text-shadow" => array("-moz-text-shadow", "-webkit-text-shadow", "-khtml-text-shadow"),
+ "white-space" => array(array("CssMin", "_tWhiteSpacePreWrap"))
+ );
+ /**
+ * Minifies the Css.
+ *
+ * @param string $css
+ * @param array $config [optional]
+ * @return string
+ */
+ public static function minify($css, $config = array())
+ {
+ $tokens = self::parse($css);
+ $config = array_merge(array
+ (
+ "remove-empty-blocks" => true,
+ "remove-empty-rulesets" => true,
+ "remove-last-semicolons" => true,
+ "convert-css3-properties" => false,
+ "convert-color-values" => false,
+ "compress-color-values" => false,
+ "compress-unit-values" => false,
+ "emulate-css3-variables" => true,
+ ), $config);
+ // Minification options
+ $sRemoveEmptyBlocks = $config["remove-empty-blocks"];
+ $sRemoveEmptyRulesets = $config["remove-empty-rulesets"];
+ $sRemoveLastSemicolon = $config["remove-last-semicolons"];
+ $sConvertCss3Properties = $config["convert-css3-properties"];
+ $sCompressUnitValues = $config["compress-unit-values"];
+ $sConvertColorValues = $config["convert-color-values"];
+ $sCompressColorValues = $config["compress-color-values"];
+ $sEmulateCcss3Variables = $config["emulate-css3-variables"];
+ $sRemoveTokens = array(self::T_COMMENT);
+ // Remove tokens
+ if (!$sEmulateCcss3Variables)
+ {
+ $sRemoveTokens = array_merge($sRemoveTokens, array(self::T_AT_VARIABLES_START, self::T_VARIABLE_DECLARATION, self::T_AT_VARIABLES_END));
+ }
+ for($i = 0, $l = count($tokens); $i < $l; $i++)
+ {
+ if (in_array($tokens[$i][0], $sRemoveTokens))
+ {
+ unset($tokens[$i]);
+ }
+ }
+ $tokens = array_values($tokens);
+ // Remove empty rulesets
+ if ($sRemoveEmptyRulesets)
+ {
+ for($i = 0, $l = count($tokens); $i < $l; $i++)
+ {
+ // Remove empty rulesets
+ if ($tokens[$i][0] == self::T_RULESET_START && $tokens[$i+4][0] == self::T_RULESET_END)
+ {
+ unset($tokens[$i]); // T_RULESET_START
+ unset($tokens[++$i]); // T_SELECTORS
+ unset($tokens[++$i]); // T_DECLARATIONS_START
+ unset($tokens[++$i]); // T_DECLARATIONS_END
+ unset($tokens[++$i]); // T_RULESET_END
+ }
+ }
+ $tokens = array_values($tokens);
+ }
+ // Remove empty @media, @font-face or @page blocks
+ if ($sRemoveEmptyBlocks)
+ {
+ for($i = 0, $l = count($tokens); $i < $l; $i++)
+ {
+ // Remove empty @media, @font-face or @page blocks
+ if (($tokens[$i][0] == self::T_AT_MEDIA_START && $tokens[$i+1][0] == self::T_AT_MEDIA_END)
+ || ($tokens[$i][0] == self::T_AT_FONT_FACE_START && $tokens[$i+1][0] == self::T_AT_FONT_FACE_END)
+ || ($tokens[$i][0] == self::T_AT_PAGE_START && $tokens[$i+1][0] == self::T_AT_PAGE_END))
+ {
+ unset($tokens[$i]); // T_AT_MEDIA_START, T_AT_FONT_FACE_START, T_AT_PAGE_START
+ unset($tokens[++$i]); // T_AT_MEDIA_END, T_AT_FONT_FACE_END, T_AT_PAGE_END
+ }
+ }
+ $tokens = array_values($tokens);
+ }
+ // CSS Level 3 variables: parse variables
+ if ($sEmulateCcss3Variables)
+ {
+ // Parse variables
+ $variables = array();
+ for($i = 0, $l = count($tokens); $i < $l; $i++)
+ {
+ if ($tokens[$i][0] == self::T_VARIABLE_DECLARATION)
+ {
+ for($i2 = 0, $l2 = count($tokens[$i][3]); $i2 < $l2; $i2++)
+ {
+ if (!isset($variables[$tokens[$i][3][$i2]]))
+ {
+ $variables[$tokens[$i][3][$i2]] = array();
+ }
+ $variables[$tokens[$i][3][$i2]][$tokens[$i][1]] = $tokens[$i][2];
+ }
+ }
+ }
+ }
+ // Conversion and compression
+ for($i = 0, $l = count($tokens); $i < $l; $i++)
+ {
+ if ($tokens[$i][0] == self::T_DECLARATION)
+ {
+ // CSS Level 3 variables
+ if ($sEmulateCcss3Variables)
+ {
+ if (substr($tokens[$i][2], 0, 4) == "var(" && substr($tokens[$i][2], -1, 1) == ")")
+ {
+ $tokens[$i][3][] = "all";
+ $variable = trim(substr($tokens[$i][2], 4, -1));
+ for($i2 = 0, $l2 = count($tokens[$i][3]); $i2 < $l2; $i2++)
+ {
+ if (isset($variables[$tokens[$i][3][$i2]][$variable]))
+ {
+ $tokens[$i][2] = $variables[$tokens[$i][3][$i2]][$variable];
+ break;
+ }
+ }
+ }
+ }
+ // Compress unit values
+ if ($sCompressUnitValues)
+ {
+ // Compress "0.5px" to ".5px"
+ $tokens[$i][2] = preg_replace("/(^| |-)0\.([0-9]+)(%|em|ex|px|in|cm|mm|pt|pc)/iS", "\${1}.\${2}\${3}", $tokens[$i][2]);
+ // Compress "0px" to "0"
+ $tokens[$i][2] = preg_replace("/(^| )-?(\.?)0(%|em|ex|px|in|cm|mm|pt|pc)/iS", "\${1}0", $tokens[$i][2]);
+ // Compress "0 0 0 0" to "0"
+ if ($tokens[$i][2] == "0 0 0 0") {$tokens[$i][2] = "0";}
+ }
+ // Convert RGB color values to hex ("rgb(200,60%,5)" => "#c89905")
+ if ($sConvertColorValues && preg_match("/rgb\s*\(\s*([0-9%]+)\s*,\s*([0-9%]+)\s*,\s*([0-9%]+)\s*\)/iS", $tokens[$i][2], $m))
+ {
+ for ($i2 = 1, $l2 = count($m); $i2 < $l2; $i2++)
+ {
+ if (strpos("%", $m[$i2]) !== false)
+ {
+ $m[$i2] = substr($m[$i2], 0, -1);
+ $m[$i2] = (int) (256 * ($m[$i2] / 100));
+ }
+ $m[$i2] = str_pad(dechex($m[$i2]), 2, "0", STR_PAD_LEFT);
+ }
+ $tokens[$i][2] = str_replace($m[0], "#" . $m[1] . $m[2] . $m[3], $tokens[$i][2]);
+ }
+ // Compress color values ("#aabbcc" to "#abc")
+ if ($sCompressColorValues && preg_match("/\#([0-9a-f]{6})/iS", $tokens[$i][2], $m))
+ {
+ $m[1] = strtolower($m[1]);
+ if (substr($m[1], 0, 1) == substr($m[1], 1, 1) && substr($m[1], 2, 1) == substr($m[1], 3, 1) && substr($m[1], 4, 1) == substr($m[1], 5, 1))
+ {
+ $tokens[$i][2] = str_replace($m[0], "#" . substr($m[1], 0, 1) . substr($m[1], 2, 1) . substr($m[1], 4, 1), $tokens[$i][2]);
+ }
+ }
+ }
+ }
+ // Create minified css
+ $r = "";
+ for($i = 0, $l = count($tokens); $i < $l; $i++)
+ {
+ // T_AT_RULE
+ if ($tokens[$i][0] == self::T_AT_RULE)
+ {
+ $r .= "@" . $tokens[$i][1] . " " . $tokens[$i][2] . ";";
+ }
+ // T_AT_MEDIA_START
+ elseif ($tokens[$i][0] == self::T_AT_MEDIA_START)
+ {
+ if (count($tokens[$i][1]) == 1 && $tokens[$i][1][0] == "all")
+ {
+ $r .= "@media{";
+ }
+ else
+ {
+ $r .= "@media " . implode(",", $tokens[$i][1]) . "{";
+ }
+ }
+ // T_AT_FONT_FACE_START
+ elseif ($tokens[$i][0] == self::T_AT_FONT_FACE_START)
+ {
+ $r .= "@font-face{";
+ }
+ // T_FONT_FACE_DECLARATION
+ elseif ($tokens[$i][0] == self::T_FONT_FACE_DECLARATION)
+ {
+ $r .= $tokens[$i][1] . ":" . $tokens[$i][2] . ($sRemoveLastSemicolon && $tokens[$i+1][0] == self::T_AT_FONT_FACE_END ? "" : ";");
+ }
+ // T_AT_PAGE_START
+ elseif ($tokens[$i][0] == self::T_AT_PAGE_START)
+ {
+ $r .= "@page{";
+ }
+ // T_PAGE_DECLARATION
+ elseif ($tokens[$i][0] == self::T_PAGE_DECLARATION)
+ {
+ $r .= $tokens[$i][1] . ":" . $tokens[$i][2] . ($sRemoveLastSemicolon && $tokens[$i+1][0] == self::T_AT_PAGE_END ? "" : ";");
+ }
+ // T_SELECTORS
+ elseif ($tokens[$i][0] == self::T_SELECTORS)
+ {
+ $r .= implode(",", $tokens[$i][1]);
+ }
+ // Start of declarations
+ elseif ($tokens[$i][0] == self::T_DECLARATIONS_START)
+ {
+ $r .= "{";
+ }
+ // T_DECLARATION
+ elseif ($tokens[$i][0] == self::T_DECLARATION)
+ {
+ if ($sConvertCss3Properties && isset(self::$transformations[$tokens[$i][1]]))
+ {
+ foreach (self::$transformations[$tokens[$i][1]] as $value)
+ {
+ if (!is_array($value))
+ {
+ $r .= $value . ":" . $tokens[$i][2] . ";";
+ }
+ elseif (is_array($value) && is_callable($value))
+ {
+ $r.= call_user_func_array($value, array($tokens[$i][1], $tokens[$i][2]));
+
+ }
+ }
+ }
+ $r .= $tokens[$i][1] . ":" . $tokens[$i][2] . ($sRemoveLastSemicolon && $tokens[$i+1][0] == self::T_DECLARATIONS_END ? "" : ";");
+ }
+ // T_DECLARATIONS_END, T_AT_MEDIA_END, T_AT_FONT_FACE_END, T_AT_PAGE_END
+ elseif (in_array($tokens[$i][0], array(self::T_DECLARATIONS_END, self::T_AT_MEDIA_END, self::T_AT_FONT_FACE_END, self::T_AT_PAGE_END)))
+ {
+ $r .= "}";
+ }
+ else
+ {
+ // Tokens with no output:
+ // T_COMMENT
+ // T_RULESET_START
+ // T_RULESET_END
+ // T_AT_VARIABLES_START
+ // T_VARIABLE_DECLARATION
+ // T_AT_VARIABLES_END
+ }
+ }
+ return $r;
+ }
+ /**
+ * Parses the Css and returns a array of tokens.
+ *
+ * @param string $css
+ * @return array
+ */
+ public static function parse($css)
+ {
+ // Settings
+ $sDefaultScope = array("all"); // Default scope
+ $sDefaultTrim = " \t\n\r\0\x0B"; // Default trim charlist
+ $sTokenChars = "@{}();:\n\"'/*,"; // Tokens triggering parser processing
+ // Basic variables
+ $c = null; // Current char
+ $p = null; // Previous char
+ $buffer = ""; // Buffer
+ $state = array(self::T_DOCUMENT); // State stack
+ $currentState = self::T_DOCUMENT; // Current state
+ $scope = $sDefaultScope; // Current scope
+ $stringChar = null; // String delimiter char
+ $isFilterWs = true; // Filter double whitespaces?
+ $selectors = array(); // Array with collected selectors
+ $r = array(); // Return value
+ // Prepare css
+ $css = str_replace("\r\n", "\n", $css); // Windows to Unix line endings
+ $css = str_replace("\r", "\n", $css); // Mac to Unix line endings
+ while (strpos($css, "\n\n") !== false)
+ {
+ $css = str_replace("\n\n", "\n", $css); // Remove double line endings
+ }
+ $css = str_replace("\t", " ", $css); // Convert tabs to spaces
+ // Parse css
+ for ($i = 0, $l = strlen($css); $i < $l; $i++)
+ {
+ $c = substr($css, $i, 1);
+ // Filter out double spaces
+ if ($isFilterWs && $c == " " && $c == $p)
+ {
+ continue;
+ }
+ $buffer .= $c;
+ if (strpos($sTokenChars, $c) !== false)
+ {
+ //
+ $currentState = $state[count($state) - 1];
+ /*
+ * Start of comment
+ */
+ if ($p == "/" && $c == "*" && $currentState != self::T_STRING && $currentState != self::T_COMMENT)
+ {
+ $saveBuffer = substr($buffer, 0, -2); // save the buffer (will get restored with comment ending)
+ $buffer = $c;
+ $isFilterWs = false;
+ array_push($state, self::T_COMMENT);
+ }
+ /*
+ * End of comment
+ */
+ elseif ($p == "*" && $c == "/" && $currentState == self::T_COMMENT)
+ {
+ $r[] = array(self::T_COMMENT, trim($buffer));
+ $buffer = $saveBuffer;
+ $isFilterWs = true;
+ array_pop($state);
+ }
+ /*
+ * Start of string
+ */
+ elseif (($c == "\"" || $c == "'") && $currentState != self::T_STRING && $currentState != self::T_COMMENT && $currentState != self::T_STRING_URL)
+ {
+ $stringChar = $c;
+ $isFilterWs = false;
+ array_push($state, self::T_STRING);
+ }
+ /**
+ * Escaped LF in string => remove escape backslash and LF
+ */
+ elseif ($c == "\n" && $p == "\\" && $currentState == self::T_STRING)
+ {
+ $buffer = substr($buffer, 0, -2);
+ }
+ /*
+ * End of string
+ */
+ elseif ($c === $stringChar && $currentState == self::T_STRING)
+ {
+ if ($p == "\\") // Previous char is a escape char
+ {
+ $count = 1;
+ $i2 = $i -2;
+ while (substr($css, $i2, 1) == "\\")
+ {
+ $count++;
+ $i2--;
+ }
+ // if count of escape chars is uneven => continue with string...
+ if ($count % 2)
+ {
+ continue;
+ }
+ }
+ // ...else end the string
+ $isFilterWs = true;
+ array_pop($state);
+ $stringChar = null;
+ }
+ /**
+ * Start of url string property
+ */
+ elseif ($c == "(" && ($currentState != self::T_COMMENT && $currentState != self::T_STRING) && strtolower(substr($css, $i - 3, 3) == "url")
+ && ($currentState == self::T_DECLARATION || $currentState == self::T_FONT_FACE_DECLARATION || $currentState == self::T_PAGE_DECLARATION || $currentState == self::T_VARIABLE_DECLARATION))
+ {
+ array_push($state, self::T_STRING_URL);
+ }
+ /**
+ * End of url string property
+ */
+ elseif (($c == ")" || $c == "\n") && ($currentState != self::T_COMMENT && $currentState != self::T_STRING) && $currentState == self::T_STRING_URL)
+ {
+ if ($p == "\\")
+ {
+ continue;
+ }
+ array_pop($state);
+ }
+ /*
+ * Start of at-rule @media block
+ */
+ elseif ($c == "@" && $currentState == self::T_DOCUMENT && strtolower(substr($css, $i, 6)) == "@media")
+ {
+ $i = $i + 6;
+ $buffer = "";
+ array_push($state, self::T_AT_MEDIA_START);
+ }
+ /*
+ * At-rule @media block media types
+ */
+ elseif ($c == "{" && $currentState == self::T_AT_MEDIA_START)
+ {
+ $buffer = strtolower(trim($buffer, $sDefaultTrim . "{"));
+ $scope = $buffer != "" ? array_filter(array_map("trim", explode(",", $buffer))) : $sDefaultScope;
+ $r[] = array(self::T_AT_MEDIA_START, $scope);
+ $i = $i++;
+ $buffer = "";
+ array_pop($state);
+ array_push($state, self::T_AT_MEDIA);
+ }
+ /*
+ * End of at-rule @media block
+ */
+ elseif ($currentState == self::T_AT_MEDIA && $c == "}")
+ {
+ $r[] = array(self::T_AT_MEDIA_END);
+ $scope = $sDefaultScope;
+ $buffer = "";
+ array_pop($state);
+ }
+ /*
+ * Start of at-rule @font-face block
+ */
+ elseif ($c == "@" && $currentState == self::T_DOCUMENT && strtolower(substr($css, $i, 10)) == "@font-face")
+ {
+ $r[] = array(self::T_AT_FONT_FACE_START);
+ $i = $i + 10;
+ $buffer = "";
+ array_push($state, self::T_AT_FONT_FACE);
+ }
+ /*
+ * @font-face declaration: Property
+ */
+ elseif ($c == ":" && $currentState == self::T_AT_FONT_FACE)
+ {
+ $property = trim($buffer, $sDefaultTrim . ":{");
+ $buffer = "";
+ array_push($state, self::T_FONT_FACE_DECLARATION);
+ }
+ /*
+ * @font-face declaration: Value
+ */
+ elseif (($c == ";" || $c == "}" || $c == "\n") && $currentState == self::T_FONT_FACE_DECLARATION)
+ {
+ $value = trim($buffer, $sDefaultTrim . ";}");
+ $r[] = array(self::T_FONT_FACE_DECLARATION, $property, $value, $scope);
+ $buffer = "";
+ array_pop($state);
+ if ($c == "}") // @font-face declaration closed with a right curly brace => closes @font-face block
+ {
+ array_pop($state);
+ $r[] = array(self::T_AT_FONT_FACE_END);
+ }
+ }
+ /*
+ * End of at-rule @font-face block
+ */
+ elseif ($c == "}" && $currentState == self::T_AT_FONT_FACE)
+ {
+ $r[] = array(self::T_AT_FONT_FACE_END);
+ $buffer = "";
+ array_pop($state);
+ }
+ /*
+ * Start of at-rule @page block
+ */
+ elseif ($c == "@" && $currentState == self::T_DOCUMENT && strtolower(substr($css, $i, 5)) == "@page")
+ {
+ $r[] = array(self::T_AT_PAGE_START);
+ $i = $i + 5;
+ $buffer = "";
+ array_push($state, self::T_AT_PAGE);
+ }
+ /*
+ * @page declaration: Property
+ */
+ elseif ($c == ":" && $currentState == self::T_AT_PAGE)
+ {
+ $property = trim($buffer, $sDefaultTrim . ":{");
+ $buffer = "";
+ array_push($state, self::T_PAGE_DECLARATION);
+ }
+ /*
+ * @page declaration: Value
+ */
+ elseif (($c == ";" || $c == "}" || $c == "\n") && $currentState == self::T_PAGE_DECLARATION)
+ {
+ $value = trim($buffer, $sDefaultTrim . ";}");
+ $r[] = array(self::T_PAGE_DECLARATION, $property, $value, $scope);
+ $buffer = "";
+ array_pop($state);
+ if ($c == "}") // @page declaration closed with a right curly brace => closes @font-face block
+ {
+ array_pop($state);
+ $r[] = array(self::T_AT_PAGE_END);
+ }
+ }
+ /*
+ * End of at-rule @page block
+ */
+ elseif ($c == "}" && $currentState == self::T_AT_PAGE)
+ {
+ $r[] = array(self::T_AT_PAGE_END);
+ $buffer = "";
+ array_pop($state);
+ }
+ /*
+ * Start of at-rule @variables block
+ */
+ elseif ($c == "@" && $currentState == self::T_DOCUMENT && strtolower(substr($css, $i, 10)) == "@variables")
+ {
+ $i = $i + 10;
+ $buffer = "";
+ array_push($state, self::T_AT_VARIABLES_START);
+ }
+ /*
+ * @variables media types
+ */
+ elseif ($c == "{" && $currentState == self::T_AT_VARIABLES_START)
+ {
+ $buffer = strtolower(trim($buffer, $sDefaultTrim . "{"));
+ $r[] = array(self::T_AT_VARIABLES_START, $scope);
+ $scope = $buffer != "" ? array_filter(array_map("trim", explode(",", $buffer))) : $sDefaultScope;
+ $i = $i++;
+ $buffer = "";
+ array_pop($state);
+ array_push($state, self::T_AT_VARIABLES);
+ }
+ /*
+ * @variables declaration: Property
+ */
+ elseif ($c == ":" && $currentState == self::T_AT_VARIABLES)
+ {
+ $property = trim($buffer, $sDefaultTrim . ":");
+ $buffer = "";
+ array_push($state, self::T_VARIABLE_DECLARATION);
+ }
+ /*
+ * @variables declaration: Value
+ */
+ elseif (($c == ";" || $c == "}" || $c == "\n") && $currentState == self::T_VARIABLE_DECLARATION)
+ {
+ $value = trim($buffer, $sDefaultTrim . ";}");
+ $r[] = array(self::T_VARIABLE_DECLARATION, $property, $value, $scope);
+ $buffer = "";
+ array_pop($state);
+ if ($c == "}") // @variable declaration closed with a right curly brace => closes @variables block
+ {
+ array_pop($state);
+ $r[] = array(self::T_AT_VARIABLES_END);
+ $scope = $sDefaultScope;
+ }
+ }
+ /*
+ * End of at-rule @variables block
+ */
+ elseif ($c == "}" && $currentState == self::T_AT_VARIABLES)
+ {
+ $r[] = array(self::T_AT_VARIABLES_END);
+ $scope = $sDefaultScope;
+ $buffer = "";
+ array_pop($state);
+ }
+ /*
+ * Start of document level at-rule
+ */
+ elseif ($c == "@" && $currentState == self::T_DOCUMENT)
+ {
+ $buffer = "";
+ array_push($state, self::T_AT_RULE);
+ }
+ /*
+ * End of document level at-rule
+ */
+ elseif ($c == ";" && $currentState == self::T_AT_RULE)
+ {
+ $pos = strpos($buffer, " ");
+ $rule = substr($buffer, 0, $pos);
+ $value = trim(substr($buffer, $pos), $sDefaultTrim . ";");
+ $r[] = array(self::T_AT_RULE, $rule, $value);
+ $buffer = "";
+ array_pop($state);
+ }
+ /**
+ * Selector
+ */
+ elseif ($c == "," && ($currentState == self::T_AT_MEDIA || $currentState == self::T_DOCUMENT))
+ {
+ $selectors[]= trim($buffer, $sDefaultTrim . ",");
+ $buffer = "";
+ }
+ /*
+ * Start of ruleset
+ */
+ elseif ($c == "{" && ($currentState == self::T_AT_MEDIA || $currentState == self::T_DOCUMENT))
+ {
+ $selectors[]= trim($buffer, $sDefaultTrim . "{");
+ $selectors = array_filter(array_map("trim", $selectors));
+ $r[] = array(self::T_RULESET_START);
+ $r[] = array(self::T_SELECTORS, $selectors);
+ $r[] = array(self::T_DECLARATIONS_START);
+ $buffer = "";
+ $selectors = array();
+ array_push($state, self::T_DECLARATIONS);
+ }
+ /*
+ * Declaration: Property
+ */
+ elseif ($c == ":" && $currentState == self::T_DECLARATIONS)
+ {
+ $property = trim($buffer, $sDefaultTrim . ":;");
+ $buffer = "";
+ array_push($state, self::T_DECLARATION);
+ }
+ /*
+ * Declaration: Value
+ */
+ elseif (($c == ";" || $c == "}" || $c == "\n") && $currentState == self::T_DECLARATION)
+ {
+ $value = trim($buffer, $sDefaultTrim . ";}");
+ $r[] = array(self::T_DECLARATION, $property, $value, $scope);
+ $buffer = "";
+ array_pop($state);
+ if ($c == "}") // declaration closed with a right curly brace => close ruleset
+ {
+ array_pop($state);
+ $r[] = array(self::T_DECLARATIONS_END);
+ $r[] = array(self::T_RULESET_END);
+ }
+ }
+ /*
+ * End of ruleset
+ */
+ elseif ($c == "}" && $currentState == self::T_DECLARATIONS)
+ {
+ $r[] = array(self::T_DECLARATIONS_END);
+ $r[] = array(self::T_RULESET_END);
+ $buffer = "";
+ array_pop($state);
+ }
+
+ }
+
+ $p = $c;
+ }
+ return $r;
+ }
+ /**
+ * Transforms "opacity: {value}" into browser specific counterparts.
+ *
+ * @param string $property
+ * @param string $value
+ * @return string
+ */
+ private static function _tOpacity($property, $value)
+ {
+ $ieValue = (int) ((float) $value * 100);
+ $r = "-moz-opacity:" . $value . ";"; // Firefox < 3.5
+ $r .= "-ms-filter: \"alpha(opacity=" . $ieValue . ")\";"; // Internet Explorer 8
+ $r .= "filter: alpha(opacity=" . $ieValue . ");zoom: 1;"; // Internet Explorer 4 - 7
+ return $r;
+ }
+ /**
+ * Transforms "white-space: pre-wrap" into browser specific counterparts.
+ *
+ * @param string $property
+ * @param string $value
+ * @return string
+ */
+ private static function _tWhiteSpacePreWrap($property, $value)
+ {
+ if (strtolower($value) == "pre-wrap")
+ {
+ $r = "white-space:-moz-pre-wrap;"; // Mozilla
+ $r .= "white-space:-webkit-pre-wrap;"; // Webkit
+ $r .= "white-space:-khtml-pre-wrap;"; // khtml
+ $r .= "white-space:-pre-wrap;"; // Opera 4 - 6
+ $r .= "white-space:-o-pre-wrap;"; // Opera 7+
+ $r .= "word-wrap:break-word;"; // Internet Explorer 5.5+
+ return $r;
+ }
+ else
+ {
+ return "";
+ }
+ }
+ }
+?> \ No newline at end of file