File indexing completed on 2024-05-12 06:03:09

 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category  Zend
  * @package   Zend_Text_Figlet
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd     New BSD License
  * @version   $Id$
  */
 
 /**
  * Zend_Text_Figlet is a PHP implementation of FIGlet
  *
  * @category  Zend
  * @package   Zend_Text_Figlet
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Text_Figlet
 {
     /**
      * Smush2 layout modes
      */
     const SM_EQUAL     = 0x01;
     const SM_LOWLINE   = 0x02;
     const SM_HIERARCHY = 0x04;
     const SM_PAIR      = 0x08;
     const SM_BIGX      = 0x10;
     const SM_HARDBLANK = 0x20;
     const SM_KERN      = 0x40;
     const SM_SMUSH     = 0x80;
 
     /**
      * Smush mode override modes
      */
     const SMO_NO    = 0;
     const SMO_YES   = 1;
     const SMO_FORCE = 2;
 
     /**
      * Justifications
      */
     const JUSTIFICATION_LEFT   = 0;
     const JUSTIFICATION_CENTER = 1;
     const JUSTIFICATION_RIGHT  = 2;
 
     /**
      * Write directions
      */
     const DIRECTION_LEFT_TO_RIGHT = 0;
     const DIRECTION_RIGHT_TO_LEFT = 1;
 
     /**
      * Magic fontfile number
      */
     const FONTFILE_MAGIC_NUMBER = 'flf2';
 
     /**
      * Array containing all characters of the current font
      *
      * @var array
      */
     protected $_charList = array();
 
     /**
      * Indicates if a font was loaded yet
      *
      * @var boolean
      */
     protected $_fontLoaded = false;
 
     /**
      * Latin-1 codes for German letters, respectively:
      *
      * LATIN CAPITAL LETTER A WITH DIAERESIS = A-umlaut
      * LATIN CAPITAL LETTER O WITH DIAERESIS = O-umlaut
      * LATIN CAPITAL LETTER U WITH DIAERESIS = U-umlaut
      * LATIN SMALL LETTER A WITH DIAERESIS = a-umlaut
      * LATIN SMALL LETTER O WITH DIAERESIS = o-umlaut
      * LATIN SMALL LETTER U WITH DIAERESIS = u-umlaut
      * LATIN SMALL LETTER SHARP S = ess-zed
      *
      * @var array
      */
     protected $_germanChars = array(196, 214, 220, 228, 246, 252, 223);
 
     /**
      * Output width, defaults to 80.
      *
      * @var integer
      */
     protected $_outputWidth = 80;
 
     /**
      * Hard blank character
      *
      * @var string
      */
     protected $_hardBlank;
 
     /**
      * Height of the characters
      *
      * @var integer
      */
     protected $_charHeight;
 
     /**
      * Max length of any character
      *
      * @var integer
      */
     protected $_maxLength;
 
     /**
      * Smush mode
      *
      * @var integer
      */
     protected $_smushMode = 0;
 
     /**
      * Smush defined by the font
      *
      * @var integer
      */
     protected $_fontSmush = 0;
 
     /**
      * Smush defined by the user
      *
      * @var integer
      */
     protected $_userSmush = 0;
 
     /**
      * Wether to handle paragraphs || not
      *
      * @var boolean
      */
     protected $_handleParagraphs = false;
 
     /**
      * Justification for the text, according to $_outputWidth
      *
      * For using font default, this parameter should be null, else one of
      * the values of Zend_Text_Figlet::JUSTIFICATION_*
      *
      * @var integer
      */
     protected $_justification = null;
 
     /**
      * Direction of text-writing, namely right to left
      *
      * For using font default, this parameter should be null, else one of
      * the values of Zend_Text_Figlet::DIRECTION_*
      *
      * @var integer
      */
     protected $_rightToLeft = null;
 
     /**
      * Override font file smush layout
      *
      * @var integer
      */
     protected $_smushOverride = 0;
 
     /**
      * Options of the current font
      *
      * @var array
      */
     protected $_fontOptions = array();
 
     /**
      * Previous character width
      *
      * @var integer
      */
     protected $_previousCharWidth = 0;
 
     /**
      * Current character width
      *
      * @var integer
      */
     protected $_currentCharWidth = 0;
 
     /**
      * Current outline length
      *
      * @var integer
      */
     protected $_outlineLength = 0;
 
     /**
      * Maxmimum outline length
      *
      * @var integer
      */
     protected $_outlineLengthLimit = 0;
 
     /**
      * In character line
      *
      * @var string
      */
     protected $_inCharLine;
 
     /**
      * In character line length
      *
      * @var integer
      */
     protected $_inCharLineLength = 0;
 
     /**
      * Maximum in character line length
      *
      * @var integer
      */
     protected $_inCharLineLengthLimit = 0;
 
     /**
      * Current char
      *
      * @var array
      */
     protected $_currentChar = null;
 
     /**
      * Current output line
      *
      * @var array
      */
     protected $_outputLine;
 
     /**
      * Current output
      *
      * @var string
      */
     protected $_output;
 
     /**
      * Option keys to skip when calling setOptions()
      *
      * @var array
      */
     protected $_skipOptions = array(
         'options',
         'config',
     );
 
     /**
      * Instantiate the FIGlet with a specific font. If no font is given, the
      * standard font is used. You can also supply multiple options via
      * the $options variable, which can either be an array or an instance of
      * Zend_Config.
      *
      * @param array|Zend_Config $options Options for the output
      */
     public function __construct($options = null)
     {
         // Set options
         if (is_array($options)) {
             $this->setOptions($options);
         } else if ($options instanceof Zend_Config) {
             $this->setConfig($options);
         }
 
         // If no font was defined, load default font
         if (!$this->_fontLoaded) {
             $this->_loadFont(dirname(__FILE__) . '/Figlet/zend-framework.flf');
         }
     }
 
     /**
      * Set options from array
      *
      * @param  array $options Configuration for Zend_Text_Figlet
      * @return Zend_Text_Figlet
      */
     public function setOptions(array $options)
     {
         foreach ($options as $key => $value) {
             if (in_array(strtolower($key), $this->_skipOptions)) {
                 continue;
             }
 
             $method = 'set' . ucfirst($key);
             if (method_exists($this, $method)) {
                 $this->$method($value);
             }
         }
         return $this;
     }
 
     /**
      * Set options from config object
      *
      * @param  Zend_Config $config Configuration for Zend_Text_Figlet
      * @return Zend_Text_Figlet
      */
     public function setConfig(Zend_Config $config)
     {
         return $this->setOptions($config->toArray());
     }
 
     /**
      * Set a font to use
      *
      * @param  string $font Path to the font
      * @return Zend_Text_Figlet
      */
     public function setFont($font)
     {
         $this->_loadFont($font);
         return $this;
     }
 
     /**
      * Set handling of paragraphs
      *
      * @param  boolean $handleParagraphs Wether to handle paragraphs or not
      * @return Zend_Text_Figlet
      */
     public function setHandleParagraphs($handleParagraphs)
     {
         $this->_handleParagraphs = (bool) $handleParagraphs;
         return $this;
     }
 
     /**
      * Set the justification. 0 stands for left aligned, 1 for centered and 2
      * for right aligned.
      *
      * @param  integer $justification Justification of the output text
      * @return Zend_Text_Figlet
      */
     public function setJustification($justification)
     {
         $this->_justification = min(3, max(0, (int) $justification));
         return $this;
     }
 
     /**
      * Set the output width
      *
      * @param  integer $outputWidth Output with which should be used for word
      *                              wrapping and justification
      * @return Zend_Text_Figlet
      */
     public function setOutputWidth($outputWidth)
     {
         $this->_outputWidth = max(1, (int) $outputWidth);
         return $this;
     }
 
     /**
      * Set right to left mode. For writing from left to right, use
      * Zend_Text_Figlet::DIRECTION_LEFT_TO_RIGHT. For writing from right to left,
      * use Zend_Text_Figlet::DIRECTION_RIGHT_TO_LEFT.
      *
      * @param  integer $rightToLeft Right-to-left mode
      * @return Zend_Text_Figlet
      */
     public function setRightToLeft($rightToLeft)
     {
         $this->_rightToLeft = min(1, max(0, (int) $rightToLeft));
         return $this;
     }
 
     /**
      * Set the smush mode.
      *
      * Use one of the constants of Zend_Text_Figlet::SM_*, you may combine them.
      *
      * @param  integer $smushMode Smush mode to use for generating text
      * @return Zend_Text_Figlet
      */
     public function setSmushMode($smushMode)
     {
         $smushMode = (int) $smushMode;
 
         if ($smushMode < -1) {
             $this->_smushOverride = self::SMO_NO;
         } else {
             if ($smushMode === 0) {
                 $this->_userSmush = self::SM_KERN;
             } else if ($smushMode === -1) {
                 $this->_userSmush = 0;
             } else {
                 $this->_userSmush = (($smushMode & 63) | self::SM_SMUSH);
             }
 
             $this->_smushOverride = self::SMO_YES;
         }
 
         $this->_setUsedSmush();
 
         return $this;
     }
 
     /**
      * Render a FIGlet text
      *
      * @param  string $text     Text to convert to a figlet text
      * @param  string $encoding Encoding of the input string
      * @throws InvalidArgumentException When $text is not a string
      * @throws Zend_Text_Figlet_Exception    When $text it not properly encoded
      * @return string
      */
     public function render($text, $encoding = 'UTF-8')
     {
         if (!is_string($text)) {
             throw new InvalidArgumentException('$text must be a string');
         }
 
         if ($encoding !== 'UTF-8') {
             $text = iconv($encoding, 'UTF-8', $text);
         }
 
         $this->_output     = '';
         $this->_outputLine = array();
 
         $this->_clearLine();
 
         $this->_outlineLengthLimit    = ($this->_outputWidth - 1);
         $this->_inCharLineLengthLimit = ($this->_outputWidth * 4 + 100);
 
         $wordBreakMode  = 0;
         $lastCharWasEol = false;
         $textLength     = @iconv_strlen($text, 'UTF-8');
 
         if ($textLength === false) {
             // require_once 'Zend/Text/Figlet/Exception.php';
             throw new Zend_Text_Figlet_Exception('$text is not encoded with ' . $encoding);
         }
 
         for ($charNum = 0; $charNum < $textLength; $charNum++) {
             // Handle paragraphs
             $char = iconv_substr($text, $charNum, 1, 'UTF-8');
 
             if ($char === "\n" && $this->_handleParagraphs && !$lastCharWasEol) {
                 $nextChar = iconv_substr($text, ($charNum + 1), 1, 'UTF-8');
                 if (!$nextChar) {
                     $nextChar = null;
                 }
 
                 $char = (ctype_space($nextChar)) ? "\n" : ' ';
             }
 
             $lastCharWasEol = (ctype_space($char) && $char !== "\t" && $char !== ' ');
 
             if (ctype_space($char)) {
                 $char = ($char === "\t" || $char === ' ') ? ' ': "\n";
             }
 
             // Skip unprintable characters
             $ordChar = $this->_uniOrd($char);
             if (($ordChar > 0 && $ordChar < 32 && $char !== "\n") || $ordChar === 127) {
                 continue;
             }
 
             // Build the character
             // Note: The following code is complex and thoroughly tested.
             // Be careful when modifying!
             do {
                 $charNotAdded = false;
 
                 if ($wordBreakMode === -1) {
                     if ($char === ' ') {
                         break;
                     } else if ($char === "\n") {
                         $wordBreakMode = 0;
                         break;
                     }
 
                     $wordBreakMode = 0;
                 }
 
                 if ($char === "\n") {
                     $this->_appendLine();
                     $wordBreakMode = false;
                 } else if ($this->_addChar($char)) {
                     if ($char !== ' ') {
                         $wordBreakMode = ($wordBreakMode >= 2) ? 3: 1;
                     } else {
                         $wordBreakMode = ($wordBreakMode > 0) ? 2: 0;
                     }
                 } else if ($this->_outlineLength === 0) {
                     for ($i = 0; $i < $this->_charHeight; $i++) {
                         if ($this->_rightToLeft === 1 && $this->_outputWidth > 1) {
                             $offset = (strlen($this->_currentChar[$i]) - $this->_outlineLengthLimit);
                             $this->_putString(substr($this->_currentChar[$i], $offset));
                         } else {
                             $this->_putString($this->_currentChar[$i]);
                         }
                     }
 
                     $wordBreakMode = -1;
                 } else if ($char === ' ') {
                     if ($wordBreakMode === 2) {
                         $this->_splitLine();
                     } else {
                         $this->_appendLine();
                     }
 
                     $wordBreakMode = -1;
                 } else {
                     if ($wordBreakMode >= 2) {
                         $this->_splitLine();
                     } else {
                         $this->_appendLine();
                     }
 
                     $wordBreakMode = ($wordBreakMode === 3) ? 1 : 0;
                     $charNotAdded  = true;
                 }
             } while ($charNotAdded);
         }
 
         if ($this->_outlineLength !== 0) {
             $this->_appendLine();
         }
 
         return $this->_output;
     }
 
     /**
      * Puts the given string, substituting blanks for hardblanks. If outputWidth
      * is 1, puts the entire string; otherwise puts at most outputWidth - 1
      * characters. Puts a newline at the end of the string. The string is left-
      * justified, centered or right-justified (taking outputWidth as the screen
      * width) if justification is 0, 1 or 2 respectively.
      *
      * @param  string $string The string to add to the output
      * @return void
      */
     protected function _putString($string)
     {
         $length = strlen($string);
 
         if ($this->_outputWidth > 1) {
             if ($length > ($this->_outputWidth - 1)) {
                 $length = ($this->_outputWidth - 1);
             }
 
             if ($this->_justification > 0) {
                 for ($i = 1;
                      ((3 - $this->_justification) * $i + $length + $this->_justification - 2) < $this->_outputWidth;
                      $i++) {
                     $this->_output .= ' ';
                 }
             }
         }
 
         $this->_output .= str_replace($this->_hardBlank, ' ', $string) . "\n";
     }
 
     /**
      * Appends the current line to the output
      *
      * @return void
      */
     protected function _appendLine()
     {
         for ($i = 0; $i < $this->_charHeight; $i++) {
             $this->_putString($this->_outputLine[$i]);
         }
 
         $this->_clearLine();
     }
 
     /**
      * Splits inCharLine at the last word break (bunch of consecutive blanks).
      * Makes a new line out of the first part and appends it using appendLine().
      * Makes a new line out of the second part and returns.
      *
      * @return void
      */
     protected function _splitLine()
     {
         $gotSpace = false;
         for ($i = ($this->_inCharLineLength - 1); $i >= 0; $i--) {
             if (!$gotSpace && $this->_inCharLine[$i] === ' ') {
                 $gotSpace  = true;
                 $lastSpace = $i;
             }
 
             if ($gotSpace && $this->_inCharLine[$i] !== ' ') {
                 break;
             }
         }
 
         $firstLength = ($i + 1);
         $lastLength  = ($this->_inCharLineLength - $lastSpace - 1);
 
         $firstPart = '';
         for ($i = 0; $i < $firstLength; $i++) {
             $firstPart[$i] = $this->_inCharLine[$i];
         }
 
         $lastPart = '';
         for ($i = 0; $i < $lastLength; $i++) {
             $lastPart[$i] = $this->_inCharLine[($lastSpace + 1 + $i)];
         }
 
         $this->_clearLine();
 
         for ($i = 0; $i < $firstLength; $i++) {
             $this->_addChar($firstPart[$i]);
         }
 
         $this->_appendLine();
 
         for ($i = 0; $i < $lastLength; $i++) {
             $this->_addChar($lastPart[$i]);
         }
     }
 
     /**
      * Clears the current line
      *
      * @return void
      */
     protected function _clearLine()
     {
         for ($i = 0; $i < $this->_charHeight; $i++) {
             $this->_outputLine[$i] = '';
         }
 
         $this->_outlineLength    = 0;
         $this->_inCharLineLength = 0;
     }
 
     /**
      * Attempts to add the given character onto the end of the current line.
      * Returns true if this can be done, false otherwise.
      *
      * @param  string $char Character which to add to the output
      * @return boolean
      */
     protected function _addChar($char)
     {
         $this->_getLetter($char);
 
         if ($this->_currentChar === null) {
             return true;
         }
 
         $smushAmount = $this->_smushAmount();
 
         if (($this->_outlineLength + $this->_currentCharWidth - $smushAmount) > $this->_outlineLengthLimit
             || ($this->_inCharLineLength + 1) > $this->_inCharLineLengthLimit) {
             return false;
         }
 
         $tempLine = '';
         for ($row = 0; $row < $this->_charHeight; $row++) {
             if ($this->_rightToLeft === 1) {
                 $tempLine = $this->_currentChar[$row];
 
                 for ($k = 0; $k < $smushAmount; $k++) {
                     $position            = ($this->_currentCharWidth - $smushAmount + $k);
                     $tempLine[$position] = $this->_smushem($tempLine[$position], $this->_outputLine[$row][$k]);
                 }
 
                 $this->_outputLine[$row] = $tempLine . substr($this->_outputLine[$row], $smushAmount);
             } else {
                 for ($k = 0; $k < $smushAmount; $k++) {
                     if (($this->_outlineLength - $smushAmount + $k) < 0) {
                         continue;
                     }
 
                     $position = ($this->_outlineLength - $smushAmount + $k);
                     if (isset($this->_outputLine[$row][$position])) {
                         $leftChar = $this->_outputLine[$row][$position];
                     } else {
                         $leftChar = null;
                     }
 
                     $this->_outputLine[$row][$position] = $this->_smushem($leftChar, $this->_currentChar[$row][$k]);
                 }
 
                 $this->_outputLine[$row] .= substr($this->_currentChar[$row], $smushAmount);
             }
         }
 
         $this->_outlineLength                          = strlen($this->_outputLine[0]);
         $this->_inCharLine[$this->_inCharLineLength++] = $char;
 
         return true;
     }
 
     /**
      * Gets the requested character and sets current and previous char width.
      *
      * @param  string $char The character from which to get the letter of
      * @return void
      */
     protected function _getLetter($char)
     {
         if (array_key_exists($this->_uniOrd($char), $this->_charList)) {
             $this->_currentChar       = $this->_charList[$this->_uniOrd($char)];
             $this->_previousCharWidth = $this->_currentCharWidth;
             $this->_currentCharWidth  = strlen($this->_currentChar[0]);
         } else {
             $this->_currentChar = null;
         }
     }
 
     /**
      * Returns the maximum amount that the current character can be smushed into
      * the current line.
      *
      * @return integer
      */
     protected function _smushAmount()
     {
         if (($this->_smushMode & (self::SM_SMUSH | self::SM_KERN)) === 0) {
             return 0;
         }
 
         $maxSmush = $this->_currentCharWidth;
         $amount   = $maxSmush;
 
         for ($row = 0; $row < $this->_charHeight; $row++) {
             if ($this->_rightToLeft === 1) {
                 $charbd = strlen($this->_currentChar[$row]);
                 while (true) {
                     if (!isset($this->_currentChar[$row][$charbd])) {
                         $leftChar = null;
                     } else {
                         $leftChar = $this->_currentChar[$row][$charbd];
                     }
 
                     if ($charbd > 0 && ($leftChar === null || $leftChar == ' ')) {
                         $charbd--;
                     } else {
                         break;
                     }
                 }
 
                 $linebd = 0;
                 while (true) {
                     if (!isset($this->_outputLine[$row][$linebd])) {
                         $rightChar = null;
                     } else {
                         $rightChar = $this->_outputLine[$row][$linebd];
                     }
 
                     if ($rightChar === ' ') {
                         $linebd++;
                     } else {
                         break;
                     }
                 }
 
                 $amount = ($linebd + $this->_currentCharWidth - 1 - $charbd);
             } else {
                 $linebd = strlen($this->_outputLine[$row]);
                 while (true) {
                     if (!isset($this->_outputLine[$row][$linebd])) {
                         $leftChar = null;
                     } else {
                         $leftChar = $this->_outputLine[$row][$linebd];
                     }
 
                     if ($linebd > 0 && ($leftChar === null || $leftChar == ' ')) {
                         $linebd--;
                     } else {
                         break;
                     }
                 }
 
                 $charbd = 0;
                 while (true) {
                     if (!isset($this->_currentChar[$row][$charbd])) {
                         $rightChar = null;
                     } else {
                         $rightChar = $this->_currentChar[$row][$charbd];
                     }
 
                     if ($rightChar === ' ') {
                         $charbd++;
                     } else {
                         break;
                     }
                 }
 
                 $amount = ($charbd + $this->_outlineLength - 1 - $linebd);
             }
 
             if (empty($leftChar) || $leftChar === ' ') {
                 $amount++;
             } else if (!empty($rightChar)) {
                 if ($this->_smushem($leftChar, $rightChar) !== null) {
                     $amount++;
                 }
             }
 
             $maxSmush = min($amount, $maxSmush);
         }
 
         return $maxSmush;
     }
 
     /**
      * Given two characters, attempts to smush them into one, according to the
      * current smushmode. Returns smushed character or false if no smushing can
      * be done.
      *
      * Smushmode values are sum of following (all values smush blanks):
      *
      *  1: Smush equal chars (not hardblanks)
      *  2: Smush '_' with any char in hierarchy below
      *  4: hierarchy: "|", "/\", "[]", "{}", "()", "<>"
      *     Each class in hier. can be replaced by later class.
      *  8: [ + ] -> |, { + } -> |, ( + ) -> |
      * 16: / + \ -> X, > + < -> X (only in that order)
      * 32: hardblank + hardblank -> hardblank
      *
      * @param  string $leftChar  Left character to smush
      * @param  string $rightChar Right character to smush
      * @return string
      */
     protected function _smushem($leftChar, $rightChar)
     {
         if ($leftChar === ' ') {
             return $rightChar;
         }
 
         if ($rightChar === ' ') {
             return $leftChar;
         }
 
         if ($this->_previousCharWidth < 2 || $this->_currentCharWidth < 2) {
             // Disallows overlapping if the previous character or the current
             // character has a width of one or zero.
             return null;
         }
 
         if (($this->_smushMode & self::SM_SMUSH) === 0) {
             // Kerning
             return null;
         }
 
         if (($this->_smushMode & 63) === 0) {
             // This is smushing by universal overlapping
             if ($leftChar === ' ') {
                 return $rightChar;
             } else if ($rightChar === ' ') {
                 return $leftChar;
             } else if ($leftChar === $this->_hardBlank) {
                 return $rightChar;
             } else if ($rightChar === $this->_hardBlank) {
                 return $rightChar;
             } else if ($this->_rightToLeft === 1) {
                 return $leftChar;
             } else {
                 // Occurs in the absence of above exceptions
                 return $rightChar;
             }
         }
 
         if (($this->_smushMode & self::SM_HARDBLANK) > 0) {
             if ($leftChar === $this->_hardBlank && $rightChar === $this->_hardBlank) {
                 return $leftChar;
             }
         }
 
         if ($leftChar === $this->_hardBlank && $rightChar === $this->_hardBlank) {
             return null;
         }
 
         if (($this->_smushMode & self::SM_EQUAL) > 0) {
             if ($leftChar === $rightChar) {
                 return $leftChar;
             }
         }
 
         if (($this->_smushMode & self::SM_LOWLINE) > 0) {
             if ($leftChar === '_' && strchr('|/\\[]{}()<>', $rightChar) !== false) {
                 return $rightChar;
             } else if ($rightChar === '_' && strchr('|/\\[]{}()<>', $leftChar) !== false) {
                 return $leftChar;
             }
         }
 
         if (($this->_smushMode & self::SM_HIERARCHY) > 0) {
             if ($leftChar === '|' && strchr('/\\[]{}()<>', $rightChar) !== false) {
                 return $rightChar;
             } else if ($rightChar === '|' && strchr('/\\[]{}()<>', $leftChar) !== false) {
                 return $leftChar;
             } else if (strchr('/\\', $leftChar) && strchr('[]{}()<>', $rightChar) !== false) {
                 return $rightChar;
             } else if (strchr('/\\', $rightChar) && strchr('[]{}()<>', $leftChar) !== false) {
                 return $leftChar;
             } else if (strchr('[]', $leftChar) && strchr('{}()<>', $rightChar) !== false) {
                 return $rightChar;
             } else if (strchr('[]', $rightChar) && strchr('{}()<>', $leftChar) !== false) {
                 return $leftChar;
             } else if (strchr('{}', $leftChar) && strchr('()<>', $rightChar) !== false) {
                 return $rightChar;
             } else if (strchr('{}', $rightChar) && strchr('()<>', $leftChar) !== false) {
                 return $leftChar;
             } else if (strchr('()', $leftChar) && strchr('<>', $rightChar) !== false) {
                 return $rightChar;
             } else if (strchr('()', $rightChar) && strchr('<>', $leftChar) !== false) {
                 return $leftChar;
             }
         }
 
         if (($this->_smushMode & self::SM_PAIR) > 0) {
             if ($leftChar === '[' && $rightChar === ']') {
                 return '|';
             } else if ($rightChar === '[' && $leftChar === ']') {
                 return '|';
             } else if ($leftChar === '{' && $rightChar === '}') {
                 return '|';
             } else if ($rightChar === '{' && $leftChar === '}') {
                 return '|';
             } else if ($leftChar === '(' && $rightChar === ')') {
                 return '|';
             } else if ($rightChar === '(' && $leftChar === ')') {
                 return '|';
             }
         }
 
         if (($this->_smushMode & self::SM_BIGX) > 0) {
             if ($leftChar === '/' && $rightChar === '\\') {
                 return '|';
             } else if ($rightChar === '/' && $leftChar === '\\') {
                 return 'Y';
             } else if ($leftChar === '>' && $rightChar === '<') {
                 return 'X';
             }
         }
 
         return null;
     }
 
     /**
      * Load the specified font
      *
      * @param  string $fontFile Font file to load
      * @throws Zend_Text_Figlet_Exception When font file was not found
      * @throws Zend_Text_Figlet_Exception When GZIP library is required but not found
      * @throws Zend_Text_Figlet_Exception When font file is not readable
      * @return void
      */
     protected function _loadFont($fontFile)
     {
         // Check if the font file exists
         if (!file_exists($fontFile)) {
             // require_once 'Zend/Text/Figlet/Exception.php';
             throw new Zend_Text_Figlet_Exception($fontFile . ': Font file not found');
         }
 
         // Check if gzip support is required
         if (substr($fontFile, -3) === '.gz') {
             if (!function_exists('gzcompress')) {
                 // require_once 'Zend/Text/Figlet/Exception.php';
                 throw new Zend_Text_Figlet_Exception('GZIP library is required for '
                                                      . 'gzip compressed font files');
             }
 
             $fontFile   = 'compress.zlib://' . $fontFile;
             $compressed = true;
         } else {
             $compressed = false;
         }
 
         // Try to open the file
         $fp = fopen($fontFile, 'rb');
         if ($fp === false) {
             // require_once 'Zend/Text/Figlet/Exception.php';
             throw new Zend_Text_Figlet_Exception($fontFile . ': Could not open file');
         }
 
         // If the file is not compressed, lock the stream
         if (!$compressed) {
             flock($fp, LOCK_SH);
         }
 
         // Get magic
         $magic = $this->_readMagic($fp);
 
         // Get the header
         $numsRead = sscanf(fgets($fp, 1000),
                            '%*c%c %d %*d %d %d %d %d %d',
                            $this->_hardBlank,
                            $this->_charHeight,
                            $this->_maxLength,
                            $smush,
                            $cmtLines,
                            $rightToLeft,
                            $this->_fontSmush);
 
         if ($magic !== self::FONTFILE_MAGIC_NUMBER || $numsRead < 5) {
             // require_once 'Zend/Text/Figlet/Exception.php';
             throw new Zend_Text_Figlet_Exception($fontFile . ': Not a FIGlet 2 font file');
         }
 
         // Set default right to left
         if ($numsRead < 6) {
             $rightToLeft = 0;
         }
 
         // If no smush2, decode smush into smush2
         if ($numsRead < 7) {
             if ($smush === 2) {
                 $this->_fontSmush = self::SM_KERN;
             } else if ($smush < 0) {
                 $this->_fontSmush = 0;
             } else {
                 $this->_fontSmush = (($smush & 31) | self::SM_SMUSH);
             }
         }
 
         // Correct char height && maxlength
         $this->_charHeight = max(1, $this->_charHeight);
         $this->_maxLength  = max(1, $this->_maxLength);
 
         // Give ourselves some extra room
         $this->_maxLength += 100;
 
         // See if we have to override smush settings
         $this->_setUsedSmush();
 
         // Get left to right value
         if ($this->_rightToLeft === null) {
             $this->_rightToLeft = $rightToLeft;
         }
 
         // Get justification value
         if ($this->_justification === null) {
             $this->_justification = (2 * $this->_rightToLeft);
         }
 
         // Skip all comment lines
         for ($line = 1; $line <= $cmtLines; $line++) {
             $this->_skipToEol($fp);
         }
 
         // Fetch all ASCII characters
         for ($asciiCode = 32; $asciiCode < 127; $asciiCode++) {
             $this->_charList[$asciiCode] = $this->_loadChar($fp);
         }
 
         // Fetch all german characters
         foreach ($this->_germanChars as $uniCode) {
             $char = $this->_loadChar($fp);
 
             if ($char === false) {
                 fclose($fp);
                 return;
             }
 
             if (trim(implode('', $char)) !== '') {
                 $this->_charList[$uniCode] = $char;
             }
         }
 
         // At the end fetch all extended characters
         while (!feof($fp)) {
             // Get the Unicode
             list($uniCode) = explode(' ', fgets($fp, 2048));
 
             if (empty($uniCode)) {
                 continue;
             }
 
             // Convert it if required
             if (substr($uniCode, 0, 2) === '0x') {
                 $uniCode = hexdec(substr($uniCode, 2));
             } else if (substr($uniCode, 0, 1) === '0' and
                        $uniCode !== '0' or
                        substr($uniCode, 0, 2) === '-0') {
                 $uniCode = octdec($uniCode);
             } else {
                 $uniCode = (int) $uniCode;
             }
 
             // Now fetch the character
             $char = $this->_loadChar($fp);
 
             if ($char === false) {
                 fclose($fp);
                 return;
             }
 
             $this->_charList[$uniCode] = $char;
         }
 
         fclose($fp);
 
         $this->_fontLoaded = true;
     }
 
     /**
      * Set the used smush mode, according to smush override, user smsush and
      * font smush.
      *
      * @return void
      */
     protected function _setUsedSmush()
     {
         if ($this->_smushOverride === self::SMO_NO) {
             $this->_smushMode = $this->_fontSmush;
         } else if ($this->_smushOverride === self::SMO_YES) {
             $this->_smushMode = $this->_userSmush;
         } else if ($this->_smushOverride === self::SMO_FORCE) {
             $this->_smushMode = ($this->_fontSmush | $this->_userSmush);
         }
     }
 
     /**
      * Reads a four-character magic string from a stream
      *
      * @param  resource $fp File pointer to the font file
      * @return string
      */
     protected function _readMagic($fp)
     {
         $magic = '';
 
         for ($i = 0; $i < 4; $i++) {
             $magic .= fgetc($fp);
         }
 
         return $magic;
     }
 
     /**
      * Skip a stream to the end of line
      *
      * @param  resource $fp File pointer to the font file
      * @return void
      */
     protected function _skipToEol($fp)
     {
         $dummy = fgetc($fp);
         while ($dummy !== false && !feof($fp)) {
             if ($dummy === "\n") {
                 return;
             }
 
             if ($dummy === "\r") {
                 $dummy = fgetc($fp);
 
                 if (!feof($fp) && $dummy !== "\n") {
                     fseek($fp, -1, SEEK_SET);
                 }
 
                 return;
             }
 
             $dummy = fgetc($fp);
         }
     }
 
     /**
      * Load a single character from the font file
      *
      * @param  resource $fp File pointer to the font file
      * @return array
      */
     protected function _loadChar($fp)
     {
         $char = array();
 
         for ($i = 0; $i < $this->_charHeight; $i++) {
             if (feof($fp)) {
                 return false;
             }
 
             $line = rtrim(fgets($fp, 2048), "\r\n");
 
             if (preg_match('#(.)\\1?$#', $line, $result) === 1) {
                 $line = str_replace($result[1], '', $line);
             }
 
             $char[] = $line;
         }
 
         return $char;
     }
 
     /**
      * Unicode compatible ord() method
      *
      * @param  string $c The char to get the value from
      * @return integer
      */
     protected function _uniOrd($c)
     {
         $h = ord($c[0]);
 
         if ($h <= 0x7F) {
             $ord = $h;
         } else if ($h < 0xC2) {
             $ord = 0;
         } else if ($h <= 0xDF) {
             $ord = (($h & 0x1F) << 6 | (ord($c[1]) & 0x3F));
         } else if ($h <= 0xEF) {
             $ord = (($h & 0x0F) << 12 | (ord($c[1]) & 0x3F) << 6 | (ord($c[2]) & 0x3F));
         } else if ($h <= 0xF4) {
             $ord = (($h & 0x0F) << 18 | (ord($c[1]) & 0x3F) << 12 |
                    (ord($c[2]) & 0x3F) << 6 | (ord($c[3]) & 0x3F));
         } else {
             $ord = 0;
         }
 
         return $ord;
     }
 }