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peterhinch / micropython-font-to-py

A Python 3 utility to convert fonts to Python source capable of being frozen as bytecode
MIT License
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tried to create large font file with thousands of character #41

Closed tljk closed 2 years ago

tljk commented 2 years ago

图片 this is what i got from a 3.5k characters file named chinese the font index seems simply cannot exceed 255, -l or --largest Ordinal value of largest character to be stored. Default 126. so, what is the correct way to do so

peterhinch commented 2 years ago

I think your deduction is incorrect. The index can accept values up to 65535, and your font exceeds that. The following was issued under CPython 3.8.10:

>>> x = 4
>>> x.to_bytes(2, byteorder="little")
b'\x04\x00'
>>> x = 65535
>>> x.to_bytes(2, byteorder="little")
b'\xff\xff'
>>> x = 65536
>>> x.to_bytes(2, byteorder="little")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OverflowError: int too big to convert
>>>