protoscope: syntax error: unrecognized symbol "\xff\xfe1\x00:\x00"

[hatrd]

I encountered an issue while testing protoscope with my binary dumps.

The unpack operation was successful, but the repack operation failed without any changes made to the data.

Steps to Reproduce:

PS > protoscope.exe .\person.bin
1: {"John Doe"}
2: 1234
3: {"johndoe@example.com"}
PS > protoscope.exe .\person.bin > person.txt
PS > protoscope.exe -s .\person.txt
protoscope: syntax error: unrecognized symbol "\xff\xfe1\x00:\x00"
PS >  protoscope.exe -s .\person.txt > edit.bin
protoscope: syntax error: unrecognized symbol "\xff\xfe1\x00:\x00"

here's the binary

$ xxd person.bin
00000000: 0a08 4a6f 686e 2044 6f65 10d2 091a 136a  ..John Doe.....j
00000010: 6f68 6e64 6f65 4065 7861 6d70 6c65 2e63  ohndoe@example.c
00000020: 6f6d                                     om
$ xxd -ps person.bin
0a084a6f686e20446f6510d2091a136a6f686e646f65406578616d706c65
2e636f6d