1 files changed, 138 insertions, 0 deletions
diff --git a/vendor/wikimedia/less.php/lib/Less/Tree/Unit.php b/vendor/wikimedia/less.php/lib/Less/Tree/Unit.php
new file mode 100644
index 0000000..2fd8927
--- /dev/null
+++ b/vendor/wikimedia/less.php/lib/Less/Tree/Unit.php
@@ -0,0 +1,138 @@
+<?php
+/**
+ * @private
+ */
+class Less_Tree_Unit extends Less_Tree {
+
+	var $numerator = [];
+	var $denominator = [];
+	public $backupUnit;
+	public $type = 'Unit';
+
+	public function __construct( $numerator = [], $denominator = [], $backupUnit = null ) {
+		$this->numerator = $numerator;
+		$this->denominator = $denominator;
+		$this->backupUnit = $backupUnit;
+	}
+
+	public function __clone() {
+	}
+
+	/**
+	 * @see Less_Tree::genCSS
+	 */
+	public function genCSS( $output ) {
+		if ( $this->numerator ) {
+			$output->add( $this->numerator[0] );
+		} elseif ( $this->denominator ) {
+			$output->add( $this->denominator[0] );
+		} elseif ( !Less_Parser::$options['strictUnits'] && $this->backupUnit ) {
+			$output->add( $this->backupUnit );
+			return;
+		}
+	}
+
+	public function toString() {
+		$returnStr = implode( '*', $this->numerator );
+		foreach ( $this->denominator as $d ) {
+			$returnStr .= '/' . $d;
+		}
+		return $returnStr;
+	}
+
+	public function __toString() {
+		return $this->toString();
+	}
+
+	/**
+	 * @param Less_Tree_Unit $other
+	 */
+	public function compare( $other ) {
+		return $this->is( $other->toString() ) ? 0 : -1;
+	}
+
+	public function is( $unitString ) {
+		return $this->toString() === $unitString;
+	}
+
+	public function isLength() {
+		$css = $this->toCSS();
+		return (bool)preg_match( '/px|em|%|in|cm|mm|pc|pt|ex/', $css );
+	}
+
+	public function isAngle() {
+		return isset( Less_Tree_UnitConversions::$angle[$this->toCSS()] );
+	}
+
+	public function isEmpty() {
+		return !$this->numerator && !$this->denominator;
+	}
+
+	public function isSingular() {
+		return count( $this->numerator ) <= 1 && !$this->denominator;
+	}
+
+	public function usedUnits() {
+		$result = [];
+
+		foreach ( Less_Tree_UnitConversions::$groups as $groupName ) {
+			$group = Less_Tree_UnitConversions::${$groupName};
+
+			foreach ( $this->numerator as $atomicUnit ) {
+				if ( isset( $group[$atomicUnit] ) && !isset( $result[$groupName] ) ) {
+					$result[$groupName] = $atomicUnit;
+				}
+			}
+
+			foreach ( $this->denominator as $atomicUnit ) {
+				if ( isset( $group[$atomicUnit] ) && !isset( $result[$groupName] ) ) {
+					$result[$groupName] = $atomicUnit;
+				}
+			}
+		}
+
+		return $result;
+	}
+
+	public function cancel() {
+		$counter = [];
+		$backup = null;
+
+		foreach ( $this->numerator as $atomicUnit ) {
+			if ( !$backup ) {
+				$backup = $atomicUnit;
+			}
+			$counter[$atomicUnit] = ( $counter[$atomicUnit] ?? 0 ) + 1;
+		}
+
+		foreach ( $this->denominator as $atomicUnit ) {
+			if ( !$backup ) {
+				$backup = $atomicUnit;
+			}
+			$counter[$atomicUnit] = ( $counter[$atomicUnit] ?? 0 ) - 1;
+		}
+
+		$this->numerator = [];
+		$this->denominator = [];
+
+		foreach ( $counter as $atomicUnit => $count ) {
+			if ( $count > 0 ) {
+				for ( $i = 0; $i < $count; $i++ ) {
+					$this->numerator[] = $atomicUnit;
+				}
+			} elseif ( $count < 0 ) {
+				for ( $i = 0; $i < -$count; $i++ ) {
+					$this->denominator[] = $atomicUnit;
+				}
+			}
+		}
+
+		if ( !$this->numerator && !$this->denominator && $backup ) {
+			$this->backupUnit = $backup;
+		}
+
+		sort( $this->numerator );
+		sort( $this->denominator );
+	}
+
+}