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(latex.info)tabbing

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tabbing
-------

      \begin{tabbing}
      text \= more text \= still more text \= last text \\
      second row \>  \> more \\
      .
      .
      .
      \end{tabbing}

   The `tabbing' environment provides a way to align text in columns.
It works by setting tab stops and tabbing to them much the way you do
with an ordinary typewriter.

   It is best suited for cases where the width of each column is
constant and known in advance.

   This environment can be broken across pages, unlike the `tabular'
environment.

   The following commands can be used inside a `tabbing' enviroment:

`\='
     Sets a tab stop at the current position.

`\>'
     Advances to the next tab stop.

`\<'
     This command allows you to put something to the left of the local
     margin without changing the margin.  Can only be used at the start
     of the line.

`\+'
     Moves the left margin of the next and all the following commands
     one tab stop to the right.

`\-'
     Moves the left margin of the next and all the following commands
     one tab stop to the left.

`\''
     Moves everything that you have typed so far in the current column,
     i.e. everything from the most recent `\>', `\<', `\'', `\\', or
     `\kill' command, to the right of the previous column, flush
     against the current column's tab stop.

`\`'
     Allows you to put text flush right against any tab stop, including
     tab stop 0.  However, it can't move text to the right of the last
     column because there's no tab stop there.  The `\`' command moves
     all the text that follows it, up to the `\\' or `\end{tabbing}'
     command that ends the line, to the right margin of the tabbing
     environment.  There must be no `\>' or `\'' command between the
     `\`' and the command that ends the line.

`\kill'
     Sets tab stops without producing text.  Works just like  `\\'
     except that it throws away the current line instead of producing
     output for it.  The effect of any `\=', `\+' or `\-' commands in
     that line remain in effect.

`\pushtabs'
     Saves all current tab stop positions. Useful for temporarily
     changing tab stop positions in the middle of a `tabbing'
     environment.

`\poptabs'
     Restores the tab stop positions saved by the last `\pushtabs'.

`\a'
     In a `tabbing' environment, the commands `\=', `\'' and `\`' do
     not produce accents as normal. Instead, the commands `\a=', `\a''
     and `\a`' are used.

   This example typesets a Pascal function in a traditional format:

             \begin{tabbing}
             function \= fact(n : integer) : integer;\\
                      \> begin \= \+ \\
                            \> if \= n $>$ 1 then \+ \\
                                     fact := n * fact(n-1) \- \\
                               else \+ \\
                                     fact := 1; \-\- \\
                         end;\\
             \end{tabbing}