2814   const DIR_UP    = 0x1;  define in dokuwiki\\plugin\\a2s\\ASCIIToSVG
3158           if ($this->isEdge($n, self::DIR_UP) || $this->isCorner($n)) {
3160             $dir = self::DIR_UP;
3196             $dir = self::DIR_UP;
3285             $dir = self::DIR_UP;
3301           if ($dir == self::DIR_UP) {
3566     } elseif ($dir == self::DIR_DOWN || $dir == self::DIR_UP) {
3620                 ($this->isCorner($n) || $this->isEdge($n, self::DIR_UP))) {
3624           return $this->walk($path, $r - 1, $c, self::DIR_UP, $d);
3626       } elseif ($dir != self::DIR_UP && 
3681     } elseif ($dir == self::DIR_DOWN || $dir == self::DIR_UP) {
3764         if (!($bucket[$key] & self::DIR_UP) &&
3765             ($this->isBoxEdge($n, self::DIR_UP) || $this->isBoxCorner($n))) {
3769             $newDir = self::DIR_UP;
3772       } elseif ($dir == self::DIR_UP) {
3783         } elseif ($newDir == self::DIR_DOWN || $newDir == self::DIR_UP) {
3821       if ($dir != self::DIR_DOWN && !($bucket[$key] & self::DIR_UP) &&
3822           ($this->isBoxEdge($n, self::DIR_UP) || $this->isBoxCorner($n))) {
3826           $bucket[$key] |= self::DIR_UP;
3827           $this->wallFollow($path, $r - 1, $c, self::DIR_UP, $bucket, $d);
3833       if ($dir != self::DIR_UP && !($bucket[$key] & self::DIR_DOWN) &&
4026     } elseif ($dir == self::DIR_UP || $dir == self::DIR_DOWN) {
4040     } elseif ($dir == self::DIR_UP || $dir == self::DIR_DOWN) {