Use witdh 1 for special chars when slipping strings

[madchicken]

A naive attempt to fix issue #410

The PR adds 1 to the width of a string when a special char is encountered.

[madchicken]

Sorry, I had to reopen this PR due to a bad command with the previous one.

[zhiburt]

Getting back to this;

I am sure,
We do must not panic/break things in case someone did not prepared his strings in advance.

But I am not sure whether it's the right fix.
Maybe it is.
But somehow I doubt.

If it would be free but this if is actually may be costly enough from performance stand point of view.

I guess this issue must be solved on the architecture level --- somehow --- 🤔 💭

Just left some thoughts here.

Have a great weekend and appreciate your work.
Let me know what you think.

[zhiburt]

Maybe like having a DIRTY marker to indicate that we shall do some processing beforehand.
And it would be more appropriate to do that right away I guess.

[zhiburt]

But tabled::settings::formatting::Charset was introduced just for that....
Maybe your approach makes scenes, but having a flag to turn it off?

I mean it's all in regard that it'd be ideal to not pay for what is not used in most cases.

Just thoughts outloud

[madchicken]

@zhiburt, I totally agree that this is probably a very dirty approach to solving this issue. I opened this PR more to raise the problem than proposing a real solution. On the other side, knowing if a header contains or not a break line or a TAB char can be difficult, especially if the value is loaded at runtime. Having a flag can be a solution but I feel it is dirtier than the fix itself 😄
A question for you: do you feel that not counting those characters in the with of a string is correct? Since it seems to me that the underlying function takes a very strong assumption by not doing it...