How to give a header to the blank column?

Question

From this site I found a table code where a column is blank. And there he didn't use & for each rows, just put a \hspace to the header.

\documentclass{article}

\begin{document}

\begin{tabular}{|l|@{\hspace{1em}}|}
  \hline
  A \\
  \hline
  B \\
  \hline
\end{tabular}

\begin{tabular}{|l|@{\hspace{2em}}|}
  \hline
  A \\
  \hline
  B \\
  \hline
\end{tabular}

\end{document}

Source: How to make enough space in empty column?

My question is I want to make this type of table(no necessary the vertical line) where some columns are blanked, but have the header. And I don't want to put & for each rows. I want to do something like \begin{tabular}{|l|@\header{Quantity{\hspace{1em}}}|}
I need this for the question How to make good market/shopping/grocery list in LaTeX?

score 3 · Accepted Answer · answered Mar 13 '18 at 09:15

3

If it's the last column that doesn't have any content, and if vertical rules are not required, you can just do this:

\documentclass{article}
\begin{document}

\begin{tabular}{ll}
Name & Quantity \\
A \\
B \\
C
\end{tabular}

\end{document}

You can end a table row with \\ before the last column, it's not required to add all the &.

answered Mar 13 '18 at 09:15

Torbjørn T.

206,688

I tried something similar of this, but error was occurred for something. – alhelal Mar 13 '18 at 13:05

Skillmon · Answer 2 · 2018-03-13T11:16:39.993

A hacky way of doing it, but the following should work in most cases. \myheader takes:

one optional argument specifying the alignment where r right-aligns, c centres, and everything else left-aligns.
After that optional argument follows a mandatory argument containing the contents of the header of the first column.
After that there is an optional argument that needs to be entered as [<alignment>,<width>], where <alignment> again is r for right-alignment, c for centred or j for justified and everything else is left-aligned with fixed <width>. If the optional argument is not given, the content is left aligned, but without fixed width.
And finally the contents of the second column header

Code:

\documentclass[]{article}

\makeatletter
\newcommand\myStrCMP[2]
  {%
    \bgroup
      \def\tmpa{#1}%
      \def\tmpb{#2}%
      \ifx\tmpa\tmpb
        \egroup
        \expandafter\@firstoftwo
      \else
        \egroup
        \expandafter\@secondoftwo
      \fi
  }

\newcommand\myheader[2][l]
  {%
    \myStrCMP{#1}{c}{\hfill#2\hfill}
      {%
        \myStrCMP{#1}{r}{\hfill#2}{#2\hfill}%
      }
    \myheader@i
  }
\def\myheader@i%
  {%
    \@ifnextchar[
      {\myheader@ii}
      {\myheader@iii}%
  }
\long\def\myheader@ii[#1,#2]#3%
  {%
    \myStrCMP{#1}{r}
      {\myheader@iii{\parbox{\dimexpr#2-2\tabcolsep\relax}{\raggedleft#3}}}
      {%
        \myStrCMP{#1}{c}
          {%
            \myheader@iii
              {%
                \parbox
                  {\dimexpr#2-2\tabcolsep\relax}{\centering#3}%
              }%
          }
          {%
            \myStrCMP{#1}{j}
              {%
                \myheader@iii{\parbox{\dimexpr#2-2\tabcolsep\relax}{#3}}%
              }
              {%
                \myheader@iii
                  {\parbox{\dimexpr#2-2\tabcolsep\relax}{\raggedright#3}}%
              }
          }%
      }%
  }
\newcommand\myheader@iii[1]
  {%
    \rlap{\hskip2\tabcolsep#1}%
  }
\makeatother

\begin{document}
\begin{tabular}[]{|l|@{\hspace{5em}}|}
  \hline
  \myheader{1col}{2col}\\
  \hline
  Abc is longer than header\\
  \hline
  B\\
  \hline
\end{tabular}

\begin{tabular}[]{|l|@{\hspace{5em}}|}
  \hline
  \myheader[c]{1col}[c,5em]{2col}\\
  \hline
  Abc is longer than header\\
  \hline
  B\\
  \hline
\end{tabular}

\begin{tabular}[]{|l|@{\hspace{5em}}|}
  \hline
  \myheader[r]{1col}[r,5em]{2col}\\
  \hline
  Abc is longer than header\\
  \hline
  B\\
  \hline
\end{tabular}

\begin{tabular}[]{|l|@{\hspace{5em}}|}
  \hline
  \myheader[l]{1col}[l,5em]{2col with long header}\\
  \hline
  Abc is longer than header\\
  \hline
  B\\
  \hline
\end{tabular}
\end{document}

Result:

score 1 · Answer 3 · answered Mar 13 '18 at 01:06

1

You can use \multicolumn.

\documentclass{article}

\begin{document}

\begin{tabular}{|l|@{\hspace{6em}}|}
  \hline
  \multicolumn{1}{|r|}{Quantity}\\
  \hline
  A \\
  \hline
  B \\
  \hline
\end{tabular}

\end{document}

answered Mar 13 '18 at 01:06

user94293

4,254

see this https://pasteboard.co/HbDrymm.png – alhelal Mar 13 '18 at 01:14
Or use no vertical line and put header for each column. – alhelal Mar 13 '18 at 01:21

How to give a header to the blank column?

3 Answers3

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