Update width and height options

[SalOne22]

@Mikachu2333 what do you think about this change? I think that 200w is more understandable than 200x_

[Mikachu2333]

Agree.
By the way, what would happened if user input w200? Panic or treat 200 as height as normal, and what if input 200 w?

We may need to take into account common mistakes made by our users.

[SalOne22]

what would happened if user input w200? Panic or treat 200 as height as normal, and what if input 200 w?

Will be parsing error. I change logic a bit that if w or h is present in string it will parse normally

[Mikachu2333]

Will be parsing error. I change logic a bit that if w or h is present in string it will parse normally

200wh this?

if (`w`.exist and `h`.exist){
    error()
}

[Mikachu2333]

crash when input 0w @SalOne22

[Mikachu2333]

Anything else?

[SalOne22]

LGTM