Command: npx . [length] [flag] ...

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Explanation:

Flag

1. A flag defines what charset is going to be used to generate a password
   • This charset is also called generation charset
2. The generator recognizes only valid flags
3. To be valid a flag must contain only the following symbols (a.k.a. requested symbols): l, d, s, c - and begin with a dash (or two: -dd or --dd)

   • l = Latin: adds abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ to the charset

   • d = Digits: adds 0123456789 to the charset

   • s = Special characters: adds ~!@#$%^&*()_+-='\"|/.?, to the charset

   • c = Cyrillic: adds абвшдеёжзийклмнопрстуфхцчшщъыьэюяАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ to the charset

     Example 1: --lsd or -dsl are valid flags, while -fsl or --djio are not

     Example 2: with the flag --lsd the charset will contain latin chars, cyrillic chars and digits

4. An order of the symbols in a valid flag is not important: --lsd will generate the same charset as --sld or --dls
5. Requested symbols may be present in a valid flag more than once: --lsd is simmilar to --llsd or --llssddd

   NB: adding requested symbols into a valid flag more than once WILL increase the chance of the symbols from the corresponding alphabet to be added

6. Command may contain more than one valid flag: --lsd creates the simmilar charset as --lsd -ls or -sd --ll

   NB: usage of the requested symbol in multiple flags WILL increase the chance of the symbols from corresponding alphabet too.

7. Usage of invalid flags is allowed too. However such flags will not affect the generation charset: -dqw or --fsd do not define the charset.
8. If no valid flag is passed then the generation charset contains only latin chars and digits (like if the -ld flag was used).

Password's length

1. Length is a number and is passed like if it was a flag (though without dashes).

   Example: npx . --sd 50 will generate password 50 chars long.

2. Valid length contains only digits: npx . --sd 50 is fine, while npx . --sd 50j is not.
3. Valid length may be passed before, after or even between flags (any flags, since invalid will not be recognized).

   Example: npx . 50 --ds or even npx . -d -sss - qwaw 50 -lsd -llls is fine.

4. Only the first valid length will be recognized: npx . 50 5 -lsd will generate a password of 50 chars, not of 5.
5. If no valid length is passed then a generated password will contain 20 characters.

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Installation & usage:

1. Clone this repository.
2. Cd to the newly created directory.
3. To generate a password run npx . [flag] [length]