ch17_01.htm

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<a name="unut-ch-17-sect-1.5.1" /><div class="sect3"><h3 class="sect3">17.1.5.1. Key letters</h3>
<table border="1" cellpadding="3">

<tr><td><tt class="literal">c</tt></td><td>Center.</td></tr>
<tr><td><tt class="literal">l</tt></td><td>Flush left.</td></tr>
<tr><td><tt class="literal">r</tt></td><td>Flush right.</td></tr>
<tr><td><tt class="literal">n</tt></td><td>Align numerical entries.</td></tr>
<tr><td><tt class="literal">a</tt></td><td>Align alphabetic subcolumns.</td></tr>
<tr><td><tt class="literal">s</tt></td><td><p>Horizontally span previous column entry across this column.</p>
</td></tr>
<tr><td><tt class="literal">^</tt></td><td><p>Vertically span (center) entry from previous
row down through this row.</p>
</td></tr>
</table><p>
</div>

<a name="unut-ch-17-sect-1.5.2" /><div class="sect3"><h3 class="sect3">17.1.5.2. Key modifiers</h3><p>These must follow a key letter.</p>

<table border="1" cellpadding="3">

<tr><td><tt class="literal">b</tt></td><td>Boldface.</td></tr>
<tr><td><tt class="literal">i</tt></td><td>Italics.</td></tr>
<tr><td><tt class="literal">f</tt><em class="replaceable"><tt>x</em></td><td>Font <em class="emphasis">x</tt></em>.</td></tr>
<tr><td><tt class="literal">p</tt><em class="replaceable"><tt>n</em></td><td>Point size <em class="emphasis">n</tt></em>.</td></tr>
<tr><td><tt class="literal">v</tt><em class="replaceable"><tt>n</tt></em></td><td><p>Vertical line spacing, in points.
Applies only to text blocks.</p>
</td></tr>
<tr><td><tt class="literal">t</tt></td><td><p>Begin any corresponding vertically spanned table entry 
(i.e., from <tt class="literal">^</tt>) at the top line of its range.</p>
</td></tr>
<tr><td><tt class="literal">e</tt></td><td>Equal-width columns.</td></tr>
<tr><td><tt class="literal">w(</tt><em class="replaceable"><tt>n</tt></em><tt class="literal">)</tt></td><td><p>Minimum column width.  Also used with text blocks.
<em class="emphasis">n</em> can be given in any acceptable <tt class="literal">troff</tt> units.</p>
</td></tr>
<tr><td><em class="replaceable"><tt>n</tt></em></td><td>Amount of separation (in ens) between columns (default is 3).</td></tr>
<tr><td><tt class="literal">|</tt></td><td><p>Separate columns with a single vertical line.
Typed between key letters.</p>
</td></tr>
<tr><td><tt class="literal">||</tt></td><td><p>Separate columns with a double vertical line.
Typed between key letters.</p>
</td></tr>
<tr><td><tt class="literal">_</tt></td><td><p>Separate rows with a single horizontal line.
Used in place of a key letter.</p>
</td></tr>
<tr><td><tt class="literal">=</tt></td><td><p>Separate rows with a double horizontal line.
Used in place of a key letter.</p>
</td></tr>
</table><p>
</div>
</div>

<a name="unut-ch-17-sect-1.6" /><div class="sect2"><h3 class="sect2">17.1.6. Data</h3><p>The data portion includes both the heading and text of the table.  
Each table entry must be separated by a tab character.
In the description below, <em class="emphasis">tab</em> represents the tab character.</p>

<table border="1" cellpadding="3">

<tr><td><tt class="literal">.</tt><em class="replaceable"><tt>xx</tt></em></td><td><p><tt class="literal">troff</tt> requests may be used (such
as <tt class="literal">.sp </tt><em class="emphasis">n</em>, <tt class="literal">.na</tt>, etc.). </p>
</td></tr>
<tr><td><tt class="literal">\</tt></td><td><p>As last character in a line, combine following line with current line
(hide newline).</p>
</td></tr>
<tr><td><tt class="literal">\^</tt></td><td><p>Span table entry that is above this row,
bringing it down to be vertically centered.</p>
</td></tr>
<tr><td><tt class="literal">_</tt> or <tt class="literal">=</tt></td><td><p>As the only character in a line, extend a single or double horizontal
line the full width of the table.</p>
</td></tr>
<tr><td><tt class="literal">\$_</tt> or <tt class="literal">\$=</tt></td><td><p>Extend a single or double horizontal line the full width of the column.</p>
</td></tr>
<tr><td><tt class="literal">\_</tt></td><td><p>Extend a single horizontal line the width
of the column's contents.</p>
</td></tr>
<tr><td><tt class="literal">\R</tt><em class="replaceable"><tt>x</em></td><td><p>Print <em class="emphasis">x</tt></em>s as wide as the column's contents.</p>
</td></tr>
<tr>

<td>...<em class="emphasis">tab</em><tt class="literal">T</tt><tt class="literal">{</tt></td><td><p>Start text block as a table entry.  Must end a line.
Necessary when a line of text is input over more than one line, or
it will span more than one line of output.  </p>
</td></tr>
<tr>

<td><tt class="literal">T</tt><tt class="literal">}</tt><em class="emphasis">tab</em>...</td><td>End text block.  Must begin a line.</td></tr>
</table><p>
</div>

<a name="unut-ch-17-sect-1.7" /><div class="sect2"><h3 class="sect2">17.1.7. A tbl Example</h3><p>Input:</p>
<blockquote><pre class="code">.TS
center box linesize(6) tab(@);
cb s s.
Horizontal Local Motions
_
.T&amp;
ci | ci s
ci | ci s
ci | ci | ci
c | l s.
Function@Effect in
\^@_
\^@troff@nroff
_
\eh'n'@Move distance N
\e(space)@Unpaddable space-size space
\e0@Digit-size space
_
.T&amp;
c | l | l.
\e|@1/6 em space@ignored
\e^@1/12 em space@ignored
.TE</pre></blockquote>
<p>Result:</p>

<img src="figs/tbl_unut.gif" alt="Figure 17.1.7" />




<a name="IXT-17-123445" />
<a name="IXT-17-123446" />
<a name="IXT-17-123447" />
<a name="IXT-17-123448" />
<a name="IXT-17-123449" /></div>
</div>

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