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<pre><a name="line-1"></a><span class='hs-comment'>{- |
<a name="line-2"></a>
<a name="line-3"></a> Module : Text.Html.BlockTable
<a name="line-4"></a> Copyright : (c) Andy Gill, and the Oregon Graduate Institute of
<a name="line-5"></a> Science and Technology, 1999-2001
<a name="line-6"></a> License : BSD-style (see the file libraries/core/LICENSE)
<a name="line-7"></a>
<a name="line-8"></a> Maintainer : Andy Gill <andy@galconn.com>
<a name="line-9"></a> Stability : experimental
<a name="line-10"></a> Portability : portable
<a name="line-11"></a>
<a name="line-12"></a> $Id: BlockTable.hs,v 1.2 2002/07/24 09:42:18 simonmar Exp $
<a name="line-13"></a>
<a name="line-14"></a> An Html combinator library
<a name="line-15"></a>
<a name="line-16"></a>-}</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Haddock</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>BlockTable</span> <span class='hs-layout'>(</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-comment'>-- Datatypes:</span>
<a name="line-21"></a>
<a name="line-22"></a> <span class='hs-conid'>BlockTable</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- abstract</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-comment'>-- Contruction Functions: </span>
<a name="line-25"></a>
<a name="line-26"></a> <span class='hs-varid'>single</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>empty</span><span class='hs-layout'>,</span>
<a name="line-28"></a> <span class='hs-varid'>above</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-varid'>beside</span><span class='hs-layout'>,</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-comment'>-- Investigation Functions: </span>
<a name="line-32"></a>
<a name="line-33"></a> <span class='hs-varid'>getMatrix</span><span class='hs-layout'>,</span>
<a name="line-34"></a> <span class='hs-varid'>showsTable</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-varid'>showTable</span><span class='hs-layout'>,</span>
<a name="line-36"></a>
<a name="line-37"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-38"></a>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span>
<a name="line-40"></a>
<a name="line-41"></a><span class='hs-keyword'>infixr</span> <span class='hs-num'>4</span> <span class='hs-varop'>`beside`</span>
<a name="line-42"></a><span class='hs-keyword'>infixr</span> <span class='hs-num'>3</span> <span class='hs-varop'>`above`</span>
<a name="line-43"></a>
<a name="line-44"></a><span class='hs-comment'>-- These combinators can be used to build formated 2D tables.</span>
<a name="line-45"></a><span class='hs-comment'>-- The specific target useage is for HTML table generation.</span>
<a name="line-46"></a>
<a name="line-47"></a><span class='hs-comment'>{-
<a name="line-48"></a> Examples of use:
<a name="line-49"></a>
<a name="line-50"></a> > table1 :: BlockTable String
<a name="line-51"></a> > table1 = single "Hello" +-----+
<a name="line-52"></a> |Hello|
<a name="line-53"></a> This is a 1x1 cell +-----+
<a name="line-54"></a> Note: single has type
<a name="line-55"></a>
<a name="line-56"></a> single :: a -> BlockTable a
<a name="line-57"></a>
<a name="line-58"></a> So the cells can contain anything.
<a name="line-59"></a>
<a name="line-60"></a> > table2 :: BlockTable String
<a name="line-61"></a> > table2 = single "World" +-----+
<a name="line-62"></a> |World|
<a name="line-63"></a> +-----+
<a name="line-64"></a>
<a name="line-65"></a>
<a name="line-66"></a> > table3 :: BlockTable String
<a name="line-67"></a> > table3 = table1 %-% table2 +-----%-----+
<a name="line-68"></a> |Hello%World|
<a name="line-69"></a> % is used to indicate +-----%-----+
<a name="line-70"></a> the join edge between
<a name="line-71"></a> the two Tables.
<a name="line-72"></a>
<a name="line-73"></a> > table4 :: BlockTable String
<a name="line-74"></a> > table4 = table3 %/% table2 +-----+-----+
<a name="line-75"></a> |Hello|World|
<a name="line-76"></a> Notice the padding on the %%%%%%%%%%%%%
<a name="line-77"></a> smaller (bottom) cell to |World |
<a name="line-78"></a> force the table to be a +-----------+
<a name="line-79"></a> rectangle.
<a name="line-80"></a>
<a name="line-81"></a> > table5 :: BlockTable String
<a name="line-82"></a> > table5 = table1 %-% table4 +-----%-----+-----+
<a name="line-83"></a> |Hello%Hello|World|
<a name="line-84"></a> Notice the padding on the | %-----+-----+
<a name="line-85"></a> leftmost cell, again to | %World |
<a name="line-86"></a> force the table to be a +-----%-----------+
<a name="line-87"></a> rectangle.
<a name="line-88"></a>
<a name="line-89"></a> Now the table can be rendered with processTable, for example:
<a name="line-90"></a> Main> processTable table5
<a name="line-91"></a> [[("Hello",(1,2)),
<a name="line-92"></a> ("Hello",(1,1)),
<a name="line-93"></a> ("World",(1,1))],
<a name="line-94"></a> [("World",(2,1))]] :: [[([Char],(Int,Int))]]
<a name="line-95"></a> Main>
<a name="line-96"></a>-}</span>
<a name="line-97"></a>
<a name="line-98"></a><span class='hs-comment'>-- ---------------------------------------------------------------------------</span>
<a name="line-99"></a><span class='hs-comment'>-- Contruction Functions</span>
<a name="line-100"></a>
<a name="line-101"></a><span class='hs-comment'>-- Perhaps one day I'll write the Show instance</span>
<a name="line-102"></a><span class='hs-comment'>-- to show boxes aka the above ascii renditions.</span>
<a name="line-103"></a>
<a name="line-104"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Show</span> <span class='hs-layout'>(</span><span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-105"></a> <span class='hs-varid'>showsPrec</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showsTable</span>
<a name="line-106"></a>
<a name="line-107"></a><a name="TableI"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>TableI</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span>
<a name="line-108"></a>
<a name="line-109"></a><a name="BlockTable"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Table</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TableI</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>Int</span> <span class='hs-conid'>Int</span>
<a name="line-110"></a>
<a name="line-111"></a>
<a name="line-112"></a><span class='hs-comment'>-- You can create a (1x1) table entry</span>
<a name="line-113"></a>
<a name="line-114"></a><a name="single"></a><span class='hs-definition'>single</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span>
<a name="line-115"></a><span class='hs-definition'>single</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Table</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-conop'>:</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-num'>1</span> <span class='hs-num'>1</span>
<a name="line-116"></a>
<a name="line-117"></a><a name="empty"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span>
<a name="line-118"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Table</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span>
<a name="line-119"></a>
<a name="line-120"></a>
<a name="line-121"></a><span class='hs-comment'>-- You can compose tables, horizonally and vertically</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="above"></a><span class='hs-definition'>above</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span>
<a name="line-124"></a><a name="beside"></a><span class='hs-definition'>beside</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span>
<a name="line-125"></a>
<a name="line-126"></a><a name="above"></a><span class='hs-definition'>t1</span> <span class='hs-varop'>`above`</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trans</span> <span class='hs-layout'>(</span><span class='hs-varid'>combine</span> <span class='hs-layout'>(</span><span class='hs-varid'>trans</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>trans</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varop'>.</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-127"></a>
<a name="line-128"></a><a name="beside"></a><span class='hs-definition'>t1</span> <span class='hs-varop'>`beside`</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>combine</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>lst1</span> <span class='hs-varid'>lst2</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span>
<a name="line-129"></a> <span class='hs-keyword'>let</span>
<a name="line-130"></a> <span class='hs-comment'>-- Note this depends on the fact that</span>
<a name="line-131"></a> <span class='hs-comment'>-- that the result has the same number</span>
<a name="line-132"></a> <span class='hs-comment'>-- of lines as the y dimention; one list</span>
<a name="line-133"></a> <span class='hs-comment'>-- per line. This is not true in general</span>
<a name="line-134"></a> <span class='hs-comment'>-- but is always true for these combinators.</span>
<a name="line-135"></a> <span class='hs-comment'>-- I should assert this!</span>
<a name="line-136"></a> <span class='hs-comment'>-- I should even prove this.</span>
<a name="line-137"></a> <span class='hs-varid'>beside'</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-varid'>ys</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>++</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>beside'</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>ys</span>
<a name="line-138"></a> <span class='hs-varid'>beside'</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-conop'>:</span> <span class='hs-varid'>xs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>r</span>
<a name="line-139"></a> <span class='hs-varid'>beside'</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-varid'>ys</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ys</span> <span class='hs-varop'>++</span> <span class='hs-varid'>r</span>
<a name="line-140"></a> <span class='hs-varid'>beside'</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>r</span>
<a name="line-141"></a> <span class='hs-keyword'>in</span>
<a name="line-142"></a> <span class='hs-varid'>beside'</span> <span class='hs-layout'>(</span><span class='hs-varid'>lst1</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>lst2</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-143"></a>
<a name="line-144"></a><span class='hs-comment'>-- trans flips (transposes) over the x and y axis of</span>
<a name="line-145"></a><span class='hs-comment'>-- the table. It is only used internally, and typically</span>
<a name="line-146"></a><span class='hs-comment'>-- in pairs, ie. (flip ... munge ... (un)flip).</span>
<a name="line-147"></a>
<a name="line-148"></a><a name="trans"></a><span class='hs-definition'>trans</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span>
<a name="line-149"></a><span class='hs-definition'>trans</span> <span class='hs-layout'>(</span><span class='hs-conid'>Table</span> <span class='hs-varid'>f1</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>y1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Table</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>f1</span><span class='hs-layout'>)</span> <span class='hs-varid'>y1</span> <span class='hs-varid'>x1</span>
<a name="line-150"></a>
<a name="line-151"></a><a name="combine"></a><span class='hs-definition'>combine</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span>
<a name="line-152"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>b</span>
<a name="line-153"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>TableI</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TableI</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TableI</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-154"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>c</span>
<a name="line-155"></a><span class='hs-definition'>combine</span> <span class='hs-layout'>(</span><span class='hs-conid'>Table</span> <span class='hs-varid'>f1</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>y1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Table</span> <span class='hs-varid'>f2</span> <span class='hs-varid'>x2</span> <span class='hs-varid'>y2</span><span class='hs-layout'>)</span> <span class='hs-varid'>comb</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Table</span> <span class='hs-varid'>new_fn</span> <span class='hs-layout'>(</span><span class='hs-varid'>x1</span><span class='hs-varop'>+</span><span class='hs-varid'>x2</span><span class='hs-layout'>)</span> <span class='hs-varid'>max_y</span>
<a name="line-156"></a> <span class='hs-keyword'>where</span>
<a name="line-157"></a> <span class='hs-varid'>max_y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-varid'>y1</span> <span class='hs-varid'>y2</span>
<a name="line-158"></a> <span class='hs-varid'>new_fn</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span>
<a name="line-159"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>compare</span> <span class='hs-varid'>y1</span> <span class='hs-varid'>y2</span> <span class='hs-keyword'>of</span>
<a name="line-160"></a> <span class='hs-conid'>EQ</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>comb</span> <span class='hs-layout'>(</span><span class='hs-varid'>f1</span> <span class='hs-num'>0</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>f2</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-161"></a> <span class='hs-conid'>GT</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>comb</span> <span class='hs-layout'>(</span><span class='hs-varid'>f1</span> <span class='hs-num'>0</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>f2</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varop'>+</span> <span class='hs-varid'>y1</span> <span class='hs-comment'>-</span> <span class='hs-varid'>y2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-162"></a> <span class='hs-conid'>LT</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>comb</span> <span class='hs-layout'>(</span><span class='hs-varid'>f1</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varop'>+</span> <span class='hs-varid'>y2</span> <span class='hs-comment'>-</span> <span class='hs-varid'>y1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>f2</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-163"></a>
<a name="line-164"></a><span class='hs-comment'>-- ---------------------------------------------------------------------------</span>
<a name="line-165"></a><span class='hs-comment'>-- Investigation Functions</span>
<a name="line-166"></a>
<a name="line-167"></a><span class='hs-comment'>-- This is the other thing you can do with a Table;</span>
<a name="line-168"></a><span class='hs-comment'>-- turn it into a 2D list, tagged with the (x,y)</span>
<a name="line-169"></a><span class='hs-comment'>-- sizes of each cell in the table.</span>
<a name="line-170"></a>
<a name="line-171"></a><a name="getMatrix"></a><span class='hs-definition'>getMatrix</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span>
<a name="line-172"></a><span class='hs-definition'>getMatrix</span> <span class='hs-layout'>(</span><span class='hs-conid'>Table</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>r</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-conid'>[]</span>
<a name="line-173"></a>
<a name="line-174"></a><span class='hs-comment'>-- You can also look at a table</span>
<a name="line-175"></a>
<a name="line-176"></a><a name="showsTable"></a><span class='hs-definition'>showsTable</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-177"></a><span class='hs-definition'>showsTable</span> <span class='hs-varid'>table</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>shows</span> <span class='hs-layout'>(</span><span class='hs-varid'>getMatrix</span> <span class='hs-varid'>table</span><span class='hs-layout'>)</span>
<a name="line-178"></a>
<a name="line-179"></a><a name="showTable"></a><span class='hs-definition'>showTable</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>BlockTable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-180"></a><span class='hs-definition'>showTable</span> <span class='hs-varid'>table</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showsTable</span> <span class='hs-varid'>table</span> <span class='hs-str'>""</span>
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