train for other language

[raminrahimi6970]

hello thanks for your paper and released codes
I want to train your code for other language but I see in lmdbdataset that you use English char and limit the max length to 30 that is true?
I should change line 245 and 246?

`def len(self):
return self.length

def get(self,idx):
    with self.env.begin(write=False) as txn:
        image_key, label_key = f'image-{idx+1:09d}', f'label-{idx+1:09d}'
        label = str(txn.get(label_key.encode()), 'utf-8')  # label
        label = re.sub('[^0-9a-zA-Z]+', '', label)
        label = label[:30]`