I want to check the characters of a file sequentially from the beginning of the file and if a character exists in file1 and not in file2, It appends the character.
Actually I have a DIC file that I want to install on the user's computer. But I don't want existing texts to be overwritten. Also, I don't want to delete the default file on the user's computer.
This DIC file is a screen reader dictionary used for the blind.
I would be grateful if you could help me
I wrote a code that checks the character, but I couldn't write it to the file.
This is my code: https://go.dev/play/p/4ogdlQaBRHz
Note: This code may be a incorrect code.