pocketmine\nbt\NBT::readValue PHP Метод

    private static function readValue($data, &$offset, &$type = null)
    {
        $value = "";
        $type = null;
        $inQuotes = false;
        $len = strlen($data);
        for (; $offset < $len; ++$offset) {
            $c = $data[$offset];
            if (!$inQuotes and ($c === " " or $c === "\r" or $c === "\n" or $c === "\t" or $c === "," or $c === "}" or $c === "]")) {
                if ($c === "," or $c === "}" or $c === "]") {
                    break;
                }
            } elseif ($c === '"') {
                $inQuotes = !$inQuotes;
                if ($type === null) {
                    $type = self::TAG_String;
                } elseif ($inQuotes) {
                    throw new \Exception("Syntax error: invalid quote at offset {$offset}");
                }
            } elseif ($c === "\\") {
                $value .= isset($data[$offset + 1]) ? $data[$offset + 1] : "";
                ++$offset;
            } elseif ($c === "{" and !$inQuotes) {
                if ($value !== "") {
                    throw new \Exception("Syntax error: invalid compound start at offset {$offset}");
                }
                ++$offset;
                $value = self::parseCompound($data, $offset);
                $type = self::TAG_Compound;
                break;
            } elseif ($c === "[" and !$inQuotes) {
                if ($value !== "") {
                    throw new \Exception("Syntax error: invalid list start at offset {$offset}");
                }
                ++$offset;
                $value = self::parseList($data, $offset);
                $type = self::TAG_List;
                break;
            } else {
                $value .= $c;
            }
        }
        if ($value === "") {
            throw new \Exception("Syntax error: invalid empty value at offset {$offset}");
        }
        if ($type === null and strlen($value) > 0) {
            $value = trim($value);
            $last = strtolower(substr($value, -1));
            $part = substr($value, 0, -1);
            if ($last !== "b" and $last !== "s" and $last !== "l" and $last !== "f" and $last !== "d") {
                $part = $value;
                $last = null;
            }
            if ($last !== "f" and $last !== "d" and (string) (int) $part === $part) {
                if ($last === "b") {
                    $type = self::TAG_Byte;
                } elseif ($last === "s") {
                    $type = self::TAG_Short;
                } elseif ($last === "l") {
                    $type = self::TAG_Long;
                } else {
                    $type = self::TAG_Int;
                }
                $value = (int) $part;
            } elseif (is_numeric($part)) {
                if ($last === "f" or $last === "d" or strpos($part, ".") !== false) {
                    if ($last === "f") {
                        $type = self::TAG_Float;
                    } elseif ($last === "d") {
                        $type = self::TAG_Double;
                    } else {
                        $type = self::TAG_Float;
                    }
                    $value = (double) $part;
                } else {
                    if ($last === "l") {
                        $type = self::TAG_Long;
                    } else {
                        $type = self::TAG_Int;
                    }
                    $value = $part;
                }
            } else {
                $type = self::TAG_String;
            }
        }
        return $value;
    }