Fix/3336/add default value for tab width

[fritschldwg]

Provide default value for tabwidth

Closes: #3336

Description

• Sets the default value of tabwidth to 'unknown' when no value is entered
  by the user during configuration of the RawTextParser and tabwidth will get estimated
• When user enters a non-integer value, the tabwidth gets estimated as well

Screenshots or gifs

[ce-bo]

I would prefer something like "What is the tab with used (estimated if unknown)?" Default would be "unknown".
Is ist possible to have a string prompt and to cast the value to an int accordingly? If the result of the cast would be a NaN the estimation can take place.

[ce-bo]

Would you please check my comment?

[fritschldwg]

I would prefer something like "What is the tab with used (estimated if unknown)?" Default would be "unknown". Is ist possible to have a string prompt and to cast the value to an int accordingly? If the result of the cast would be a NaN the estimation can take place.

Implementation of requested changes:

• If user does not enter anything - tabwidth will be estimated
• If user enters non-integer value - tabwidth will be estimated
• If user enters integer-value - tabwidth is set to specified value

[ce-bo]

I think 0 should be an invalid tabWidth. Not sure how the parser would behave in this case.

[fritschldwg]

I would prefer something like "What is the tab with used (estimated if unknown)?" Default would be "unknown". Is ist possible to have a string prompt and to cast the value to an int accordingly? If the result of the cast would be a NaN the estimation can take place.

Implementation of requested changes:

• If user does not enter anything - tabwidth will be estimated
• If user enters non-integer value - tabwidth will be estimated
• If user enters integer-value - tabwidth is set to specified value

Updated implementation:

• If user does not enter anything - tabwidth will be estimated
• If user enters non-integer value - tabwidth will be estimated
• If user enters negative integer-value or zero - tabwidth will be estimated
• If user enters positive integer-value - tabwidth is set to specified value

[sonarcloud]

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[sonarcloud]

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[ce-bo]

LGTM!