Text Formatting ⇒ Defining a command with counter

[artemff]

Why this commands don't work?

Code: Select all

\newcommand{\commandrep}[2]
{
 \newcounter{i}
 \setcounter{i}{0}
 \whiledo{\not\equal{\value{i}}{#1}}
  {
   \addtocounter{i}{1}
   #2 
  }
}
 
%leave n empty string;
\newcommand{\printent}[1]
{
 \commandrep{#1}{\newline}
}

I invoke its such:

Code: Select all

\printent{4}

And there an error is appeared.

[gmedina]

Hi,

after suitable completion, your command definitions work OK[1] for me. Perhaps you are not loading the ifthen package (that provides the \whiledo command)? Do you have the following line in the preamble of your document?

Code: Select all

\usepackage{ifthen}

If that was not the problem, then please post here a minimal working example that allows us to reproduce the problem.

[1] OK, in this case, means without producing errors; however, your command will produce the typical "Underfull \hbox (badness 10000)..." warning.

[artemff]

>> gmedina

Code: Select all

\documentclass [a4paper, 12pt, oneside]{scrartcl}

\usepackage [cp1251] {inputenc}
\usepackage [english, russian] {babel}
\usepackage{indentfirst}
\usepackage{misccorr}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{ccaption}
\usepackage{upgreek}
\usepackage{wrapfig}
\usepackage{ifthen}

%command adds n textcommands;1st parameter - n; 2nd parameter - textcommand
\newcommand{\commandrep}[2]
{
 \newcounter{i}
 \setcounter{i}{0}
 \whiledo{\not\equal{\value{i}}{#1}}
  {
   \addtocounter{i}{1}
   #2 
  }
}
 
%leave n empty string;
\newcommand{\printent}[1]
{
 \commandrep{#1}{\newline}
}

\newcommand{\rv}{\text{В}}
\newcommand{\ra}{\text{А}}
\newcommand{\rma}{\text{мА}}
\newcommand{\rom}{\text{Ом}}
\newcommand{\rvt}{\text{Вт}}

\begin{document}
\begin{titlepage}
 \begin{center}
  texttexttext
  \printent{5}
  texttext
  \printent{7}  
  texttext 
  texttext
 \end{center}
\end{titlepage}
\end{document}

[gmedina]

Hi,

change

Code: Select all

\newcommand{\commandrep}[2]
{
\newcounter{i}
\setcounter{i}{0}
\whiledo{\not\equal{\value{i}}{#1}}
  {
   \addtocounter{i}{1}
   #2
  }
}

to

Code: Select all

\newcounter{i}
\newcommand{\commandrep}[2]
{
\setcounter{i}{0}
\whiledo{\not\equal{\value{i}}{#1}}
  {
   \addtocounter{i}{1}
   #2
  }
}

[artemff]

gmedina, Thanks. But why next example with this function don't work?

Code: Select all

\documentclass [a4paper, 12pt, oneside]{scrartcl}

\usepackage [cp1251] {inputenc}
\usepackage [english, russian] {babel}
\usepackage{indentfirst}
\usepackage{misccorr}
\usepackage{ifthen}


\newcounter{i}
%command adds n textcommands;1st parameter - n; 2nd parameter - textcommand
\newcommand{\commandrep}[2]
{
 \setcounter{i}{0}
 \whiledo{\not\equal{\value{i}}{#1}}
  {
   \addtocounter{i}{1}
   #2 
  }
}
 
%leave n empty string;
\newcommand{\printent}[1]
{
 \commandrep{#1}{\newline}
}

\newcommand{\rv}{\text{В}}
\newcommand{\ra}{\text{А}}
\newcommand{\rma}{\text{мА}}
\newcommand{\rom}{\text{Ом}}
\newcommand{\rvt}{\text{Вт}}

\begin{document}
\begin{titlepage}
 \begin{center}
  texttexttexttext
  \printent{4}
  texttexttexttext
  \printent{5}  
  texttexttexttexttext
  \newline
  \begin{flushright}
   texttexttexttexttexttexttext
  \end{flushright}
  \printent{6}
  texttexttext
 \end{center}
\end{titlepage}
\end{document}

[gmedina]

It doesn't work because \printent internally uses the \newline command. The line \printint{6} in your code will result in using a \newline command outside a paragraph and this will produce an error.

Try changing

Code: Select all

\newcommand{\printent}[1]
{
\commandrep{#1}{\newline}
}

to

Code: Select all

\newcommand{\printent}[1]
{
\commandrep{#1}{\vskip\baselineskip}
}

In fact, you could define \printent in the following way:

Code: Select all

\newcommand{\printent}[1]%
{\vskip#1\baselineskip}

and now the \commandrep definition is not longer needed.

[artemff]

gmedina, Thanks, now all work...

[gmedina]

I made a mistake in my previous reply. I corrected it.

[artemff]

gmedina, Instead enters are numbers...

[gmedina]

gmedina, Instead enters are numbers...

I do not undestand you here. What do you mean?