a small question

[ustczhouyu]

hello, thank you for sharing the codes. I cannot understand the following line in dataset.py:
out_of_char = f'[^{self.opt.character}]'
self.opt.character is 0123456789abcdefghijklmnopqrstuvwxyz
out_of_char is [^**0123456789abcdefghijklmnopqrstuvwxyz**]
can you tell me what the three new characters [ ,^, and ] mean?

[GaoXinJian-USTC]

hello, thank you for sharing the codes. I cannot understand the following line in dataset.py:
out_of_char = f'[^{self.opt.character}]'
self.opt.character is 0123456789abcdefghijklmnopqrstuvwxyz
out_of_char is [^**0123456789abcdefghijklmnopqrstuvwxyz**]
can you tell me what the three new characters [ ,^, and ] mean?

This means only focu on the characters in 0123456789abcdefghijklmnopqrstuvwxyz, dont care other characters. I also study in ustc and do some research in OCR. Can I add your wechat?