How to define dot startpoint in TOC after renewcommand sections

Question

As I am lazy and do not want to write the same stuff again and again while creating sections which have all the same prefix I tried the following:
documentclass[12pt,numbers=noendperiod,toc=sectionentrywithdots]{scrartcl}
usepackage[ngerman]{babel}

%setcounter{tocdepth}{2}

renewcommandthesection{Übung arabic{section}}
    renewcommandthesubsection{Aufgabe arabic{subsection}}
    renewcommandthesubsubsection{arabic{subsection}alph{subsubsection})}

begin{document}

tableofcontents
%   newpage
    
    section{ }
    
    Text
    
    subsection{ }
    
    More text
    
    subsection{~~~~~~~~~~~~~~}
    
    Hardcoded spaces does the job but is counterproductive
    
    subsubsection{ }
    
    Final text

end{document}

It gives me the wanted prefix in the text, but it messes up the starting position of my dots in the table of contents:

So, how do I set a prefix which doesn't mess up my toc-dots? Or i.e.: How do I make sure LaTeX knows where my prefix ends?

esdd · Accepted Answer

You could use
DeclareTOCStyleEntries[
  numwidth=1em,% minimum width reserved for the entry number
  dynnumwidth% adjustes the width automatically (if more space than numwidth is needed)
]{tocline}{section,subsection,subsubsection}

or
RedeclareSectionCommands[
  tocnumwidth=1em,% minimum width reserved for the entry number
  tocdynnumwidth% adjustes the width automatically (if more space than numwidth is needed)
]{section,subsection,subsubsection}

Example:
documentclass[12pt,numbers=noendperiod,toc=sectionentrywithdots]{scrartcl}
usepackage[ngerman]{babel}

setcounter{tocdepth}{subsubsectiontocdepth}
DeclareTOCStyleEntries[numwidth=1em,dynnumwidth]{tocline}{section,subsection,subsubsection}
DeclareTOCStyleEntry[dynindent]{tocline}{subsubsection}

renewcommandthesection{Übung arabic{section}}
renewcommandthesubsection{Aufgabe arabic{subsection}}
renewcommandthesubsubsection{arabic{subsection}alph{subsubsection})}

begin{document}
tableofcontents
%clearpage
section{strut}
Text
subsection{strut}
More text
subsection{strut}
Hardcoded spaces does the job but is counterproductive
subsubsection{strut}
Final text
end{document}

Run three times to get

leandriis · Answer

Let's start with the following MWE, in which the dotfill still overlaps with the section numbers:
documentclass[12pt,numbers=noendperiod,toc=sectionentrywithdots]{scrartcl}
usepackage[ngerman]{babel}

renewcommandthesection{Übung arabic{section}}
renewcommandthesubsection{Aufgabe arabic{subsection}}
renewcommandthesubsubsection{arabic{subsection}alph{subsubsection})}

begin{document}
    tableofcontents
    section{hspace{0pt}}
      Text
    subsection{hspace{0pt}}
      More text
    subsection{hspace{0pt}}
      Hardcoded spaces does the job but is counterproductive
    subsubsection{hspace{0pt}}
      Final text
end{document}

Upon compiling the aforementioned code, we end up with some warnings such as:
Package tocbasic Warning: number width of section toc entries should be increas
ed!
(tocbasic)                Currently used number width = 46.96692pt,
(tocbasic)                Wanted number separation    = 5.27994pt,
(tocbasic)                Reserved number width       = 19.80011pt on input lin
e 2.

Package tocbasic Warning: number width of subsection toc entries should be incr
eased!
(tocbasic)                Currently used number width = 52.5439pt,
(tocbasic)                Wanted number separation    = 4.69987pt,
(tocbasic)                Reserved number width       = 27.02475pt on input lin
e 3.

Following the advice from the warnings, we can use
RedeclareSectionCommand[tocnumwidth=50pt]{section}
RedeclareSectionCommand[tocnumwidth=53pt]{subsection}
RedeclareSectionCommand[tocnumwidth=17pt]{subsubsection}

in order to adjust the widths of the section, subsection and subsubsection entries accordingly in order to avoid overlap and excessive white space.
Full MWE:

documentclass[12pt,numbers=noendperiod,toc=sectionentrywithdots]{scrartcl}
usepackage[ngerman]{babel}

renewcommandthesection{Übung arabic{section}}
renewcommandthesubsection{Aufgabe arabic{subsection}}
renewcommandthesubsubsection{arabic{subsection}alph{subsubsection})}

RedeclareSectionCommand[tocnumwidth=47pt]{section}
RedeclareSectionCommand[tocnumwidth=53pt]{subsection}
RedeclareSectionCommand[tocnumwidth=17pt]{subsubsection}

begin{document}
    tableofcontents
    section{hspace{0pt}}
      Text
    subsection{hspace{0pt}}
      More text
    subsection{hspace{0pt}}
      Hardcoded spaces does the job but is counterproductive
    subsubsection{hspace{0pt}}
      Final text
end{document}

How to define dot startpoint in TOC after renewcommand sections

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