2816   const DIR_LEFT  = 0x4;  define in dokuwiki\\plugin\\a2s\\ASCIIToSVG
3150           if ($this->isEdge($w, self::DIR_LEFT) || $this->isCorner($w)) {
3152             $dir = self::DIR_LEFT;
3215             $dir = self::DIR_LEFT;
3270             $dir = self::DIR_LEFT;
3307           } elseif ($dir == self::DIR_LEFT) {
3563     if ($dir == self::DIR_RIGHT || $dir == self::DIR_LEFT) {
3633       } elseif ($dir != self::DIR_LEFT &&
3637                 ($this->isCorner($w) || $this->isEdge($w, self::DIR_LEFT))) {
3638         return $this->walk($path, $r, $c - 1, self::DIR_LEFT, $d);
3678     if ($dir == self::DIR_RIGHT || $dir == self::DIR_LEFT) {
3759         if (!($bucket[$key] & self::DIR_LEFT) &&
3760             ($this->isBoxEdge($w, self::DIR_LEFT) || $this->isBoxCorner($w))) {
3761           $newDir == self::DIR_LEFT;
3763       } elseif ($dir == self::DIR_LEFT) {
3780         if ($newDir == self::DIR_RIGHT || $newDir == self::DIR_LEFT) {
3805       if ($dir != self::DIR_RIGHT && !($bucket[$key] & self::DIR_LEFT) &&
3806           ($this->isBoxEdge($w, self::DIR_LEFT) || $this->isBoxCorner($w))) {
3807         $bucket[$key] |= self::DIR_LEFT;
3808         $this->wallFollow($path, $r, $c - 1, self::DIR_LEFT, $bucket, $d);
3813       if ($dir != self::DIR_LEFT && !($bucket[$key] & self::DIR_RIGHT) &&
4028     } elseif ($dir == self::DIR_LEFT || $dir == self::DIR_RIGHT) {
4042     } elseif ($dir == self::DIR_LEFT || $dir == self::DIR_RIGHT) {