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<title>Hledger/Data/Transaction.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-|
<a name="line-2"></a>
<a name="line-3"></a>A 'Transaction' consists of two or more related 'Posting's which balance
<a name="line-4"></a>to zero, representing a movement of some commodity(ies) between accounts,
<a name="line-5"></a>plus a date and optional metadata like description and cleared status.
<a name="line-6"></a>
<a name="line-7"></a>-}</span>
<a name="line-8"></a>
<a name="line-9"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Transaction</span>
<a name="line-10"></a><span class='hs-keyword'>where</span>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span>
<a name="line-12"></a>
<a name="line-13"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span>
<a name="line-14"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-15"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Dates</span>
<a name="line-16"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Posting</span>
<a name="line-17"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Amount</span>
<a name="line-18"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Commodity</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyword'>where</span> <span class='hs-varid'>show</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showTransactionUnelided</span>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>ModifierTransaction</span> <span class='hs-keyword'>where</span>
<a name="line-23"></a> <span class='hs-varid'>show</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"= "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>mtvalueexpr</span> <span class='hs-varid'>t</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>unlines</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>mtpostings</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-24"></a>
<a name="line-25"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>PeriodicTransaction</span> <span class='hs-keyword'>where</span>
<a name="line-26"></a> <span class='hs-varid'>show</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"~ "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>ptperiodicexpr</span> <span class='hs-varid'>t</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>unlines</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>ptpostings</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-27"></a>
<a name="line-28"></a><a name="nulltransaction"></a><span class='hs-definition'>nulltransaction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span>
<a name="line-29"></a><span class='hs-definition'>nulltransaction</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>{</span>
<a name="line-30"></a> <span class='hs-varid'>tdate</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>nulldate</span><span class='hs-layout'>,</span>
<a name="line-31"></a> <span class='hs-varid'>teffectivedate</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-32"></a> <span class='hs-varid'>tstatus</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span>
<a name="line-33"></a> <span class='hs-varid'>tcode</span><span class='hs-keyglyph'>=</span><span class='hs-str'>""</span><span class='hs-layout'>,</span>
<a name="line-34"></a> <span class='hs-varid'>tdescription</span><span class='hs-keyglyph'>=</span><span class='hs-str'>""</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-varid'>tcomment</span><span class='hs-keyglyph'>=</span><span class='hs-str'>""</span><span class='hs-layout'>,</span>
<a name="line-36"></a> <span class='hs-varid'>tmetadata</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-37"></a> <span class='hs-varid'>tpostings</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-38"></a> <span class='hs-varid'>tpreceding_comment_lines</span><span class='hs-keyglyph'>=</span><span class='hs-str'>""</span>
<a name="line-39"></a> <span class='hs-layout'>}</span>
<a name="line-40"></a>
<a name="line-41"></a><a name="showTransaction"></a><span class='hs-comment'>{-|
<a name="line-42"></a>Show a journal transaction, formatted for the print command. ledger 2.x's
<a name="line-43"></a>standard format looks like this:
<a name="line-44"></a>
<a name="line-45"></a>@
<a name="line-46"></a>yyyy/mm/dd[ *][ CODE] description......... [ ; comment...............]
<a name="line-47"></a> account name 1..................... ...$amount1[ ; comment...............]
<a name="line-48"></a> account name 2..................... ..$-amount1[ ; comment...............]
<a name="line-49"></a>
<a name="line-50"></a>pcodewidth = no limit -- 10 -- mimicking ledger layout.
<a name="line-51"></a>pdescwidth = no limit -- 20 -- I don't remember what these mean,
<a name="line-52"></a>pacctwidth = 35 minimum, no maximum -- they were important at the time.
<a name="line-53"></a>pamtwidth = 11
<a name="line-54"></a>pcommentwidth = no limit -- 22
<a name="line-55"></a>@
<a name="line-56"></a>-}</span>
<a name="line-57"></a><span class='hs-definition'>showTransaction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-58"></a><span class='hs-definition'>showTransaction</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showTransaction'</span> <span class='hs-conid'>True</span> <span class='hs-conid'>False</span>
<a name="line-59"></a>
<a name="line-60"></a><a name="showTransactionUnelided"></a><span class='hs-definition'>showTransactionUnelided</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-61"></a><span class='hs-definition'>showTransactionUnelided</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showTransaction'</span> <span class='hs-conid'>False</span> <span class='hs-conid'>False</span>
<a name="line-62"></a>
<a name="line-63"></a><a name="showTransactionForPrint"></a><span class='hs-definition'>showTransactionForPrint</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-64"></a><span class='hs-definition'>showTransactionForPrint</span> <span class='hs-varid'>effective</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showTransaction'</span> <span class='hs-conid'>False</span> <span class='hs-varid'>effective</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="showTransaction'"></a><span class='hs-definition'>showTransaction'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-67"></a><span class='hs-definition'>showTransaction'</span> <span class='hs-varid'>elide</span> <span class='hs-varid'>effective</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span>
<a name="line-68"></a> <span class='hs-varid'>unlines</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>description</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showpostings</span> <span class='hs-layout'>(</span><span class='hs-varid'>tpostings</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>""</span><span class='hs-keyglyph'>]</span>
<a name="line-69"></a> <span class='hs-keyword'>where</span>
<a name="line-70"></a> <span class='hs-varid'>description</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>date</span><span class='hs-layout'>,</span> <span class='hs-varid'>status</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>,</span> <span class='hs-varid'>desc</span><span class='hs-layout'>,</span> <span class='hs-varid'>comment</span><span class='hs-keyglyph'>]</span>
<a name="line-71"></a> <span class='hs-varid'>date</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>effective</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showdate</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>tdate</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>teffectivedate</span> <span class='hs-varid'>t</span>
<a name="line-72"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showdate</span> <span class='hs-layout'>(</span><span class='hs-varid'>tdate</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-varid'>maybe</span> <span class='hs-str'>""</span> <span class='hs-varid'>showedate</span> <span class='hs-layout'>(</span><span class='hs-varid'>teffectivedate</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-73"></a> <span class='hs-varid'>status</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>tstatus</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>then</span> <span class='hs-str'>" *"</span> <span class='hs-keyword'>else</span> <span class='hs-str'>""</span>
<a name="line-74"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-layout'>(</span><span class='hs-varid'>tcode</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>printf</span> <span class='hs-str'>" (%s)"</span> <span class='hs-varop'>$</span> <span class='hs-varid'>tcode</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>else</span> <span class='hs-str'>""</span>
<a name="line-75"></a> <span class='hs-varid'>desc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>d</span> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-str'>" "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>d</span> <span class='hs-keyword'>where</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tdescription</span> <span class='hs-varid'>t</span>
<a name="line-76"></a> <span class='hs-varid'>comment</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-str'>" ; "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>where</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tcomment</span> <span class='hs-varid'>t</span>
<a name="line-77"></a> <span class='hs-varid'>showdate</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printf</span> <span class='hs-str'>"%-10s"</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showDate</span>
<a name="line-78"></a> <span class='hs-varid'>showedate</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printf</span> <span class='hs-str'>"=%s"</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showdate</span>
<a name="line-79"></a> <span class='hs-varid'>showpostings</span> <span class='hs-varid'>ps</span>
<a name="line-80"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>elide</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>></span> <span class='hs-num'>1</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span> <span class='hs-comment'>-- imprecise balanced check</span>
<a name="line-81"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showposting</span> <span class='hs-layout'>(</span><span class='hs-varid'>init</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>showpostingnoamt</span> <span class='hs-layout'>(</span><span class='hs-varid'>last</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-82"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showposting</span> <span class='hs-varid'>ps</span>
<a name="line-83"></a> <span class='hs-keyword'>where</span>
<a name="line-84"></a> <span class='hs-varid'>showpostingnoamt</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rstrip</span> <span class='hs-varop'>$</span> <span class='hs-varid'>showacct</span> <span class='hs-varid'>p</span> <span class='hs-varop'>++</span> <span class='hs-str'>" "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showcomment</span> <span class='hs-layout'>(</span><span class='hs-varid'>pcomment</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-85"></a> <span class='hs-varid'>showposting</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatTopPadded</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>showacct</span> <span class='hs-varid'>p</span>
<a name="line-86"></a> <span class='hs-layout'>,</span><span class='hs-str'>" "</span>
<a name="line-87"></a> <span class='hs-layout'>,</span><span class='hs-varid'>showamt</span> <span class='hs-layout'>(</span><span class='hs-varid'>pamount</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-88"></a> <span class='hs-layout'>,</span><span class='hs-varid'>showcomment</span> <span class='hs-layout'>(</span><span class='hs-varid'>pcomment</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-89"></a> <span class='hs-keyglyph'>]</span>
<a name="line-90"></a> <span class='hs-varid'>showacct</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>" "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showstatus</span> <span class='hs-varid'>p</span> <span class='hs-varop'>++</span> <span class='hs-varid'>printf</span> <span class='hs-layout'>(</span><span class='hs-varid'>printf</span> <span class='hs-str'>"%%-%ds"</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>showAccountName</span> <span class='hs-conid'>Nothing</span> <span class='hs-layout'>(</span><span class='hs-varid'>ptype</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>paccount</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-91"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maximum</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varop'>.</span> <span class='hs-varid'>paccount</span><span class='hs-layout'>)</span> <span class='hs-varid'>ps</span>
<a name="line-92"></a> <span class='hs-varid'>showstatus</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>pstatus</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>then</span> <span class='hs-str'>"* "</span> <span class='hs-keyword'>else</span> <span class='hs-str'>""</span>
<a name="line-93"></a> <span class='hs-varid'>showamt</span> <span class='hs-keyglyph'>=</span>
<a name="line-94"></a> <span class='hs-varid'>padleft</span> <span class='hs-num'>12</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showMixedAmountOrZero</span>
<a name="line-95"></a> <span class='hs-varid'>showcomment</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-str'>" ; "</span><span class='hs-varop'>++</span><span class='hs-varid'>s</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="showAccountName"></a><span class='hs-comment'>-- | Show an account name, clipped to the given width if any, and</span>
<a name="line-98"></a><span class='hs-comment'>-- appropriately bracketed/parenthesised for the given posting type.</span>
<a name="line-99"></a><span class='hs-definition'>showAccountName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PostingType</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AccountName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-100"></a><span class='hs-definition'>showAccountName</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmt</span>
<a name="line-101"></a> <span class='hs-keyword'>where</span>
<a name="line-102"></a> <span class='hs-varid'>fmt</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>take</span> <span class='hs-varid'>w'</span>
<a name="line-103"></a> <span class='hs-varid'>fmt</span> <span class='hs-conid'>VirtualPosting</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parenthesise</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>w'</span><span class='hs-comment'>-</span><span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span>
<a name="line-104"></a> <span class='hs-varid'>fmt</span> <span class='hs-conid'>BalancedVirtualPosting</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bracket</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>w'</span><span class='hs-comment'>-</span><span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span>
<a name="line-105"></a> <span class='hs-varid'>w'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-num'>999999</span> <span class='hs-varid'>w</span>
<a name="line-106"></a> <span class='hs-varid'>parenthesise</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"("</span><span class='hs-varop'>++</span><span class='hs-varid'>s</span><span class='hs-varop'>++</span><span class='hs-str'>")"</span>
<a name="line-107"></a> <span class='hs-varid'>bracket</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"["</span><span class='hs-varop'>++</span><span class='hs-varid'>s</span><span class='hs-varop'>++</span><span class='hs-str'>"]"</span>
<a name="line-108"></a>
<a name="line-109"></a><a name="realPostings"></a><span class='hs-definition'>realPostings</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span><span class='hs-keyglyph'>]</span>
<a name="line-110"></a><span class='hs-definition'>realPostings</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-varid'>isReal</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tpostings</span>
<a name="line-111"></a>
<a name="line-112"></a><a name="virtualPostings"></a><span class='hs-definition'>virtualPostings</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span><span class='hs-keyglyph'>]</span>
<a name="line-113"></a><span class='hs-definition'>virtualPostings</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-varid'>isVirtual</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tpostings</span>
<a name="line-114"></a>
<a name="line-115"></a><a name="balancedVirtualPostings"></a><span class='hs-definition'>balancedVirtualPostings</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span><span class='hs-keyglyph'>]</span>
<a name="line-116"></a><span class='hs-definition'>balancedVirtualPostings</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-varid'>isBalancedVirtual</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tpostings</span>
<a name="line-117"></a>
<a name="line-118"></a><a name="transactionPostingBalances"></a><span class='hs-comment'>-- | Get the sums of a transaction's real, virtual, and balanced virtual postings.</span>
<a name="line-119"></a><span class='hs-definition'>transactionPostingBalances</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>MixedAmount</span><span class='hs-layout'>,</span><span class='hs-conid'>MixedAmount</span><span class='hs-layout'>,</span><span class='hs-conid'>MixedAmount</span><span class='hs-layout'>)</span>
<a name="line-120"></a><span class='hs-definition'>transactionPostingBalances</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>sumPostings</span> <span class='hs-varop'>$</span> <span class='hs-varid'>realPostings</span> <span class='hs-varid'>t</span>
<a name="line-121"></a> <span class='hs-layout'>,</span><span class='hs-varid'>sumPostings</span> <span class='hs-varop'>$</span> <span class='hs-varid'>virtualPostings</span> <span class='hs-varid'>t</span>
<a name="line-122"></a> <span class='hs-layout'>,</span><span class='hs-varid'>sumPostings</span> <span class='hs-varop'>$</span> <span class='hs-varid'>balancedVirtualPostings</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-123"></a>
<a name="line-124"></a><a name="isTransactionBalanced"></a><span class='hs-comment'>-- | Is this transaction balanced ? A balanced transaction's real</span>
<a name="line-125"></a><span class='hs-comment'>-- (non-virtual) postings sum to 0, and any balanced virtual postings</span>
<a name="line-126"></a><span class='hs-comment'>-- also sum to 0.</span>
<a name="line-127"></a><span class='hs-definition'>isTransactionBalanced</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-conid'>String</span> <span class='hs-conid'>Commodity</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-128"></a><span class='hs-definition'>isTransactionBalanced</span> <span class='hs-varid'>canonicalcommoditymap</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span>
<a name="line-129"></a> <span class='hs-comment'>-- isReallyZeroMixedAmountCost rsum && isReallyZeroMixedAmountCost bvsum</span>
<a name="line-130"></a> <span class='hs-varid'>isZeroMixedAmount</span> <span class='hs-varid'>rsum'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isZeroMixedAmount</span> <span class='hs-varid'>bvsum'</span>
<a name="line-131"></a> <span class='hs-keyword'>where</span>
<a name="line-132"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rsum</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>bvsum</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>transactionPostingBalances</span> <span class='hs-varid'>t</span>
<a name="line-133"></a> <span class='hs-varid'>rsum'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>canonicaliseMixedAmount</span> <span class='hs-varid'>canonicalcommoditymap</span> <span class='hs-varop'>$</span> <span class='hs-varid'>costOfMixedAmount</span> <span class='hs-varid'>rsum</span>
<a name="line-134"></a> <span class='hs-varid'>bvsum'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>canonicaliseMixedAmount</span> <span class='hs-varid'>canonicalcommoditymap</span> <span class='hs-varop'>$</span> <span class='hs-varid'>costOfMixedAmount</span> <span class='hs-varid'>bvsum</span>
<a name="line-135"></a>
<a name="line-136"></a><a name="balanceTransaction"></a><span class='hs-comment'>-- | Ensure this transaction is balanced, possibly inferring a missing</span>
<a name="line-137"></a><span class='hs-comment'>-- amount or a conversion price first, or return an error message.</span>
<a name="line-138"></a><span class='hs-comment'>--</span>
<a name="line-139"></a><span class='hs-comment'>-- Balancing is affected by the provided commodities' display precisions.</span>
<a name="line-140"></a><span class='hs-comment'>--</span>
<a name="line-141"></a><span class='hs-comment'>-- We can infer an amount when there are multiple real postings and</span>
<a name="line-142"></a><span class='hs-comment'>-- exactly one of them is amountless; likewise for balanced virtual</span>
<a name="line-143"></a><span class='hs-comment'>-- postings. Inferred amounts are converted to cost basis when possible.</span>
<a name="line-144"></a><span class='hs-comment'>--</span>
<a name="line-145"></a><span class='hs-comment'>-- We can infer a price when all amounts were specified and the sum of</span>
<a name="line-146"></a><span class='hs-comment'>-- real postings' amounts is exactly two non-explicitly-priced amounts in</span>
<a name="line-147"></a><span class='hs-comment'>-- different commodities; likewise for balanced virtual postings.</span>
<a name="line-148"></a><span class='hs-definition'>balanceTransaction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-conid'>String</span> <span class='hs-conid'>Commodity</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>String</span> <span class='hs-conid'>Transaction</span>
<a name="line-149"></a><span class='hs-definition'>balanceTransaction</span> <span class='hs-varid'>canonicalcommoditymap</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Transaction</span><span class='hs-layout'>{</span><span class='hs-varid'>tpostings</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ps</span><span class='hs-layout'>}</span>
<a name="line-150"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>length</span> <span class='hs-varid'>rwithoutamounts</span> <span class='hs-varop'>></span> <span class='hs-num'>1</span> <span class='hs-varop'>||</span> <span class='hs-varid'>length</span> <span class='hs-varid'>bvwithoutamounts</span> <span class='hs-varop'>></span> <span class='hs-num'>1</span>
<a name="line-151"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span> <span class='hs-varid'>printerr</span> <span class='hs-str'>"could not balance this transaction (too many missing amounts)"</span>
<a name="line-152"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isTransactionBalanced</span> <span class='hs-varid'>canonicalcommoditymap</span> <span class='hs-varid'>t'''</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span> <span class='hs-varid'>printerr</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nonzerobalanceerror</span> <span class='hs-varid'>t'''</span>
<a name="line-153"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>t'''</span>
<a name="line-154"></a> <span class='hs-keyword'>where</span>
<a name="line-155"></a> <span class='hs-comment'>-- maybe infer missing amounts</span>
<a name="line-156"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rwithamounts</span><span class='hs-layout'>,</span> <span class='hs-varid'>rwithoutamounts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>partition</span> <span class='hs-varid'>hasAmount</span> <span class='hs-varop'>$</span> <span class='hs-varid'>realPostings</span> <span class='hs-varid'>t</span>
<a name="line-157"></a> <span class='hs-layout'>(</span><span class='hs-varid'>bvwithamounts</span><span class='hs-layout'>,</span> <span class='hs-varid'>bvwithoutamounts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>partition</span> <span class='hs-varid'>hasAmount</span> <span class='hs-varop'>$</span> <span class='hs-varid'>balancedVirtualPostings</span> <span class='hs-varid'>t</span>
<a name="line-158"></a> <span class='hs-varid'>ramounts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>pamount</span> <span class='hs-varid'>rwithamounts</span>
<a name="line-159"></a> <span class='hs-varid'>bvamounts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>pamount</span> <span class='hs-varid'>bvwithamounts</span>
<a name="line-160"></a> <span class='hs-varid'>t'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span><span class='hs-layout'>{</span><span class='hs-varid'>tpostings</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>map</span> <span class='hs-varid'>inferamount</span> <span class='hs-varid'>ps</span><span class='hs-layout'>}</span>
<a name="line-161"></a> <span class='hs-keyword'>where</span>
<a name="line-162"></a> <span class='hs-varid'>inferamount</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasAmount</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isReal</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span><span class='hs-layout'>{</span><span class='hs-varid'>pamount</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span> <span class='hs-varid'>sum</span> <span class='hs-varid'>ramounts</span><span class='hs-layout'>)</span><span class='hs-layout'>}</span>
<a name="line-163"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasAmount</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isBalancedVirtual</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span><span class='hs-layout'>{</span><span class='hs-varid'>pamount</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span> <span class='hs-varid'>sum</span> <span class='hs-varid'>bvamounts</span><span class='hs-layout'>)</span><span class='hs-layout'>}</span>
<a name="line-164"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-165"></a>
<a name="line-166"></a> <span class='hs-comment'>-- maybe infer conversion prices, for real postings</span>
<a name="line-167"></a> <span class='hs-varid'>rmixedamountsinorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>pamount</span> <span class='hs-varop'>$</span> <span class='hs-varid'>realPostings</span> <span class='hs-varid'>t'</span>
<a name="line-168"></a> <span class='hs-varid'>ramountsinorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMap</span> <span class='hs-varid'>amounts</span> <span class='hs-varid'>rmixedamountsinorder</span>
<a name="line-169"></a> <span class='hs-varid'>rcommoditiesinorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>commodity</span> <span class='hs-varid'>ramountsinorder</span>
<a name="line-170"></a> <span class='hs-varid'>rsumamounts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sum</span> <span class='hs-varid'>rmixedamountsinorder</span>
<a name="line-171"></a> <span class='hs-comment'>-- assumption: the sum of mixed amounts is normalised (one simple amount per commodity)</span>
<a name="line-172"></a> <span class='hs-varid'>t''</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-varid'>rsumamounts</span> <span class='hs-varop'>==</span> <span class='hs-num'>2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>all</span> <span class='hs-layout'>(</span><span class='hs-varid'>isNothing</span><span class='hs-varop'>.</span><span class='hs-varid'>price</span><span class='hs-layout'>)</span> <span class='hs-varid'>rsumamounts</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>t'</span><span class='hs-varop'>==</span><span class='hs-varid'>t</span>
<a name="line-173"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>t'</span><span class='hs-layout'>{</span><span class='hs-varid'>tpostings</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>map</span> <span class='hs-varid'>inferprice</span> <span class='hs-varid'>ps</span><span class='hs-layout'>}</span>
<a name="line-174"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>t'</span>
<a name="line-175"></a> <span class='hs-keyword'>where</span>
<a name="line-176"></a> <span class='hs-comment'>-- assumption: a posting's mixed amount contains one simple amount</span>
<a name="line-177"></a> <span class='hs-varid'>inferprice</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Posting</span><span class='hs-layout'>{</span><span class='hs-varid'>pamount</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Amount</span><span class='hs-layout'>{</span><span class='hs-varid'>commodity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>}</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-varid'>ptype</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>RegularPosting</span><span class='hs-layout'>}</span>
<a name="line-178"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span><span class='hs-layout'>{</span><span class='hs-varid'>pamount</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>conversionprice</span> <span class='hs-varid'>c</span><span class='hs-layout'>}</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span>
<a name="line-179"></a> <span class='hs-keyword'>where</span>
<a name="line-180"></a> <span class='hs-varid'>conversionprice</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>c</span> <span class='hs-varop'>==</span> <span class='hs-varid'>unpricedcommodity</span>
<a name="line-181"></a> <span class='hs-comment'>-- assign a balancing price. Use @@ for more exact output when possible.</span>
<a name="line-182"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ramountsinunpricedcommodity</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span>
<a name="line-183"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>TotalPrice</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>setAmountPrecision</span> <span class='hs-varid'>maxprecision</span> <span class='hs-varop'>$</span> <span class='hs-varid'>negate</span> <span class='hs-varop'>$</span> <span class='hs-varid'>targetcommodityamount</span><span class='hs-keyglyph'>]</span>
<a name="line-184"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>UnitPrice</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>setAmountPrecision</span> <span class='hs-varid'>maxprecision</span> <span class='hs-varop'>$</span> <span class='hs-varid'>negate</span> <span class='hs-varop'>$</span> <span class='hs-varid'>targetcommodityamount</span> <span class='hs-varop'>`divideAmount`</span> <span class='hs-layout'>(</span><span class='hs-varid'>quantity</span> <span class='hs-varid'>unpricedamount</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-185"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-186"></a> <span class='hs-keyword'>where</span>
<a name="line-187"></a> <span class='hs-varid'>unpricedcommodity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varop'>`elem`</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>commodity</span> <span class='hs-varid'>rsumamounts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>rcommoditiesinorder</span>
<a name="line-188"></a> <span class='hs-varid'>unpricedamount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-varid'>unpricedcommodity</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>commodity</span><span class='hs-layout'>)</span> <span class='hs-varid'>rsumamounts</span>
<a name="line-189"></a> <span class='hs-varid'>targetcommodityamount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>/=</span><span class='hs-varid'>unpricedcommodity</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>commodity</span><span class='hs-layout'>)</span> <span class='hs-varid'>rsumamounts</span>
<a name="line-190"></a> <span class='hs-varid'>ramountsinunpricedcommodity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-varid'>unpricedcommodity</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>commodity</span><span class='hs-layout'>)</span> <span class='hs-varid'>ramountsinorder</span>
<a name="line-191"></a> <span class='hs-varid'>inferprice</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-192"></a>
<a name="line-193"></a> <span class='hs-comment'>-- maybe infer prices for balanced virtual postings. Just duplicates the above for now.</span>
<a name="line-194"></a> <span class='hs-varid'>bvmixedamountsinorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>pamount</span> <span class='hs-varop'>$</span> <span class='hs-varid'>balancedVirtualPostings</span> <span class='hs-varid'>t''</span>
<a name="line-195"></a> <span class='hs-varid'>bvamountsinorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMap</span> <span class='hs-varid'>amounts</span> <span class='hs-varid'>bvmixedamountsinorder</span>
<a name="line-196"></a> <span class='hs-varid'>bvcommoditiesinorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>commodity</span> <span class='hs-varid'>bvamountsinorder</span>
<a name="line-197"></a> <span class='hs-varid'>bvsumamounts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sum</span> <span class='hs-varid'>bvmixedamountsinorder</span>
<a name="line-198"></a> <span class='hs-varid'>t'''</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-varid'>bvsumamounts</span> <span class='hs-varop'>==</span> <span class='hs-num'>2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>all</span> <span class='hs-layout'>(</span><span class='hs-varid'>isNothing</span><span class='hs-varop'>.</span><span class='hs-varid'>price</span><span class='hs-layout'>)</span> <span class='hs-varid'>bvsumamounts</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>t'</span><span class='hs-varop'>==</span><span class='hs-varid'>t</span> <span class='hs-comment'>-- XXX could check specifically for bv amount inferring</span>
<a name="line-199"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>t''</span><span class='hs-layout'>{</span><span class='hs-varid'>tpostings</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>map</span> <span class='hs-varid'>inferprice</span> <span class='hs-varid'>ps</span><span class='hs-layout'>}</span>
<a name="line-200"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>t''</span>
<a name="line-201"></a> <span class='hs-keyword'>where</span>
<a name="line-202"></a> <span class='hs-varid'>inferprice</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Posting</span><span class='hs-layout'>{</span><span class='hs-varid'>pamount</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Amount</span><span class='hs-layout'>{</span><span class='hs-varid'>commodity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>}</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-varid'>ptype</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>BalancedVirtualPosting</span><span class='hs-layout'>}</span>
<a name="line-203"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span><span class='hs-layout'>{</span><span class='hs-varid'>pamount</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>conversionprice</span> <span class='hs-varid'>c</span><span class='hs-layout'>}</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span>
<a name="line-204"></a> <span class='hs-keyword'>where</span>
<a name="line-205"></a> <span class='hs-varid'>conversionprice</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>c</span> <span class='hs-varop'>==</span> <span class='hs-varid'>unpricedcommodity</span>
<a name="line-206"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-varid'>bvamountsinunpricedcommodity</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span>
<a name="line-207"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>TotalPrice</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>setAmountPrecision</span> <span class='hs-varid'>maxprecision</span> <span class='hs-varop'>$</span> <span class='hs-varid'>negate</span> <span class='hs-varop'>$</span> <span class='hs-varid'>targetcommodityamount</span><span class='hs-keyglyph'>]</span>
<a name="line-208"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>UnitPrice</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>setAmountPrecision</span> <span class='hs-varid'>maxprecision</span> <span class='hs-varop'>$</span> <span class='hs-varid'>negate</span> <span class='hs-varop'>$</span> <span class='hs-varid'>targetcommodityamount</span> <span class='hs-varop'>`divideAmount`</span> <span class='hs-layout'>(</span><span class='hs-varid'>quantity</span> <span class='hs-varid'>unpricedamount</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-209"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-210"></a> <span class='hs-keyword'>where</span>
<a name="line-211"></a> <span class='hs-varid'>unpricedcommodity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varop'>`elem`</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>commodity</span> <span class='hs-varid'>bvsumamounts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>bvcommoditiesinorder</span>
<a name="line-212"></a> <span class='hs-varid'>unpricedamount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-varid'>unpricedcommodity</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>commodity</span><span class='hs-layout'>)</span> <span class='hs-varid'>bvsumamounts</span>
<a name="line-213"></a> <span class='hs-varid'>targetcommodityamount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>/=</span><span class='hs-varid'>unpricedcommodity</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>commodity</span><span class='hs-layout'>)</span> <span class='hs-varid'>bvsumamounts</span>
<a name="line-214"></a> <span class='hs-varid'>bvamountsinunpricedcommodity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-varid'>unpricedcommodity</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>commodity</span><span class='hs-layout'>)</span> <span class='hs-varid'>bvamountsinorder</span>
<a name="line-215"></a> <span class='hs-varid'>inferprice</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-216"></a>
<a name="line-217"></a> <span class='hs-varid'>printerr</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intercalate</span> <span class='hs-str'>"\n"</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-varid'>showTransactionUnelided</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>]</span>
<a name="line-218"></a>
<a name="line-219"></a><a name="nonzerobalanceerror"></a><span class='hs-definition'>nonzerobalanceerror</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-220"></a><span class='hs-definition'>nonzerobalanceerror</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printf</span> <span class='hs-str'>"could not balance this transaction (%s%s%s)"</span> <span class='hs-varid'>rmsg</span> <span class='hs-varid'>sep</span> <span class='hs-varid'>bvmsg</span>
<a name="line-221"></a> <span class='hs-keyword'>where</span>
<a name="line-222"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rsum</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>bvsum</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>transactionPostingBalances</span> <span class='hs-varid'>t</span>
<a name="line-223"></a> <span class='hs-varid'>rmsg</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isReallyZeroMixedAmountCost</span> <span class='hs-varid'>rsum</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span>
<a name="line-224"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"real postings are off by "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>costOfMixedAmount</span> <span class='hs-varid'>rsum</span><span class='hs-layout'>)</span>
<a name="line-225"></a> <span class='hs-varid'>bvmsg</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isReallyZeroMixedAmountCost</span> <span class='hs-varid'>bvsum</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span>
<a name="line-226"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"balanced virtual postings are off by "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>costOfMixedAmount</span> <span class='hs-varid'>bvsum</span><span class='hs-layout'>)</span>
<a name="line-227"></a> <span class='hs-varid'>sep</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>rmsg</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>bvmsg</span><span class='hs-layout'>)</span> <span class='hs-keyword'>then</span> <span class='hs-str'>"; "</span> <span class='hs-keyword'>else</span> <span class='hs-str'>""</span>
<a name="line-228"></a>
<a name="line-229"></a><a name="journalTransactionWithDate"></a><span class='hs-comment'>-- | Convert the primary date to either the actual or effective date.</span>
<a name="line-230"></a><span class='hs-definition'>journalTransactionWithDate</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>WhichDate</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Transaction</span>
<a name="line-231"></a><span class='hs-definition'>journalTransactionWithDate</span> <span class='hs-conid'>ActualDate</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-232"></a><span class='hs-definition'>journalTransactionWithDate</span> <span class='hs-conid'>EffectiveDate</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>txnTieKnot</span> <span class='hs-varid'>t</span><span class='hs-layout'>{</span><span class='hs-varid'>tdate</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>fromMaybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>tdate</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>teffectivedate</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>}</span>
<a name="line-233"></a>
<a name="line-234"></a><a name="txnTieKnot"></a><span class='hs-comment'>-- | Ensure a transaction's postings refer back to it.</span>
<a name="line-235"></a><span class='hs-definition'>txnTieKnot</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Transaction</span>
<a name="line-236"></a><span class='hs-definition'>txnTieKnot</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Transaction</span><span class='hs-layout'>{</span><span class='hs-varid'>tpostings</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ps</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span><span class='hs-layout'>{</span><span class='hs-varid'>tpostings</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>settxn</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>ps</span><span class='hs-layout'>}</span>
<a name="line-237"></a>
<a name="line-238"></a><a name="settxn"></a><span class='hs-comment'>-- | Set a posting's parent transaction.</span>
<a name="line-239"></a><span class='hs-definition'>settxn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Transaction</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Posting</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Posting</span>
<a name="line-240"></a><span class='hs-definition'>settxn</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span><span class='hs-layout'>{</span><span class='hs-varid'>ptransaction</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>}</span>
<a name="line-241"></a>
<a name="line-242"></a><a name="tests_Hledger_Data_Transaction"></a><span class='hs-definition'>tests_Hledger_Data_Transaction</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TestList</span> <span class='hs-keyglyph'>[</span>
<a name="line-243"></a> <span class='hs-str'>"showTransaction"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-244"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"show a balanced transaction, eliding last amount"</span>
<a name="line-245"></a> <span class='hs-layout'>(</span><span class='hs-varid'>unlines</span>
<a name="line-246"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>"2007/01/28 coopportunity"</span>
<a name="line-247"></a> <span class='hs-layout'>,</span><span class='hs-str'>" expenses:food:groceries $47.18"</span>
<a name="line-248"></a> <span class='hs-layout'>,</span><span class='hs-str'>" assets:checking"</span>
<a name="line-249"></a> <span class='hs-layout'>,</span><span class='hs-str'>""</span>
<a name="line-250"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-251"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"coopportunity"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-252"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"expenses:food:groceries"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>47.18</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-253"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"assets:checking"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>47.18</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-254"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-255"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>showTransaction</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-256"></a>
<a name="line-257"></a> <span class='hs-layout'>,</span><span class='hs-str'>"showTransaction"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-258"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"show a balanced transaction, no eliding"</span>
<a name="line-259"></a> <span class='hs-layout'>(</span><span class='hs-varid'>unlines</span>
<a name="line-260"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>"2007/01/28 coopportunity"</span>
<a name="line-261"></a> <span class='hs-layout'>,</span><span class='hs-str'>" expenses:food:groceries $47.18"</span>
<a name="line-262"></a> <span class='hs-layout'>,</span><span class='hs-str'>" assets:checking $-47.18"</span>
<a name="line-263"></a> <span class='hs-layout'>,</span><span class='hs-str'>""</span>
<a name="line-264"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-265"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"coopportunity"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-266"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"expenses:food:groceries"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>47.18</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-267"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"assets:checking"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>47.18</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-268"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-269"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>showTransactionUnelided</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-270"></a>
<a name="line-271"></a> <span class='hs-comment'>-- document some cases that arise in debug/testing:</span>
<a name="line-272"></a> <span class='hs-layout'>,</span><span class='hs-str'>"showTransaction"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-273"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"show an unbalanced transaction, should not elide"</span>
<a name="line-274"></a> <span class='hs-layout'>(</span><span class='hs-varid'>unlines</span>
<a name="line-275"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>"2007/01/28 coopportunity"</span>
<a name="line-276"></a> <span class='hs-layout'>,</span><span class='hs-str'>" expenses:food:groceries $47.18"</span>
<a name="line-277"></a> <span class='hs-layout'>,</span><span class='hs-str'>" assets:checking $-47.19"</span>
<a name="line-278"></a> <span class='hs-layout'>,</span><span class='hs-str'>""</span>
<a name="line-279"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-280"></a> <span class='hs-layout'>(</span><span class='hs-varid'>showTransaction</span>
<a name="line-281"></a> <span class='hs-layout'>(</span><span class='hs-varid'>txnTieKnot</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"coopportunity"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-282"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"expenses:food:groceries"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>47.18</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-283"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"assets:checking"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>47.19</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-284"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-285"></a>
<a name="line-286"></a> <span class='hs-layout'>,</span><span class='hs-str'>"showTransaction"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-287"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"show an unbalanced transaction with one posting, should not elide"</span>
<a name="line-288"></a> <span class='hs-layout'>(</span><span class='hs-varid'>unlines</span>
<a name="line-289"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>"2007/01/28 coopportunity"</span>
<a name="line-290"></a> <span class='hs-layout'>,</span><span class='hs-str'>" expenses:food:groceries $47.18"</span>
<a name="line-291"></a> <span class='hs-layout'>,</span><span class='hs-str'>""</span>
<a name="line-292"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-293"></a> <span class='hs-layout'>(</span><span class='hs-varid'>showTransaction</span>
<a name="line-294"></a> <span class='hs-layout'>(</span><span class='hs-varid'>txnTieKnot</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"coopportunity"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-295"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"expenses:food:groceries"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>47.18</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-296"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-297"></a>
<a name="line-298"></a> <span class='hs-layout'>,</span><span class='hs-str'>"showTransaction"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-299"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"show a transaction with one posting and a missing amount"</span>
<a name="line-300"></a> <span class='hs-layout'>(</span><span class='hs-varid'>unlines</span>
<a name="line-301"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>"2007/01/28 coopportunity"</span>
<a name="line-302"></a> <span class='hs-layout'>,</span><span class='hs-str'>" expenses:food:groceries "</span>
<a name="line-303"></a> <span class='hs-layout'>,</span><span class='hs-str'>""</span>
<a name="line-304"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-305"></a> <span class='hs-layout'>(</span><span class='hs-varid'>showTransaction</span>
<a name="line-306"></a> <span class='hs-layout'>(</span><span class='hs-varid'>txnTieKnot</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"coopportunity"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-307"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"expenses:food:groceries"</span> <span class='hs-varid'>missingamt</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-308"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-309"></a>
<a name="line-310"></a> <span class='hs-layout'>,</span><span class='hs-str'>"showTransaction"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-311"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"show a transaction with a priced commodityless amount"</span>
<a name="line-312"></a> <span class='hs-layout'>(</span><span class='hs-varid'>unlines</span>
<a name="line-313"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>"2010/01/01 x"</span>
<a name="line-314"></a> <span class='hs-layout'>,</span><span class='hs-str'>" a 1 @ $2"</span>
<a name="line-315"></a> <span class='hs-layout'>,</span><span class='hs-str'>" b "</span>
<a name="line-316"></a> <span class='hs-layout'>,</span><span class='hs-str'>""</span>
<a name="line-317"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-318"></a> <span class='hs-layout'>(</span><span class='hs-varid'>showTransaction</span>
<a name="line-319"></a> <span class='hs-layout'>(</span><span class='hs-varid'>txnTieKnot</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2010/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"x"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-320"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"a"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>unknown</span> <span class='hs-num'>1</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>UnitPrice</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar</span><span class='hs-layout'>{</span><span class='hs-varid'>precision</span><span class='hs-keyglyph'>=</span><span class='hs-num'>0</span><span class='hs-layout'>}</span> <span class='hs-num'>2</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-321"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-varid'>missingamt</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-322"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-323"></a>
<a name="line-324"></a> <span class='hs-layout'>,</span><span class='hs-str'>"balanceTransaction"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-325"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"detect unbalanced entry, sign error"</span>
<a name="line-326"></a> <span class='hs-layout'>(</span><span class='hs-varid'>isLeft</span> <span class='hs-varop'>$</span> <span class='hs-varid'>balanceTransaction</span> <span class='hs-conid'>Nothing</span>
<a name="line-327"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"test"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-328"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"a"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-329"></a> <span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-330"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-331"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"detect unbalanced entry, multiple missing amounts"</span>
<a name="line-332"></a> <span class='hs-layout'>(</span><span class='hs-varid'>isLeft</span> <span class='hs-varop'>$</span> <span class='hs-varid'>balanceTransaction</span> <span class='hs-conid'>Nothing</span>
<a name="line-333"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"test"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-334"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"a"</span> <span class='hs-varid'>missingamt</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-335"></a> <span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-varid'>missingamt</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-336"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-337"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>balanceTransaction</span> <span class='hs-conid'>Nothing</span> <span class='hs-layout'>(</span><span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2007/01/28"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>""</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-338"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"a"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-339"></a> <span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-varid'>missingamt</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-340"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span>
<a name="line-341"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"balanceTransaction allows one missing amount"</span> <span class='hs-layout'>(</span><span class='hs-varid'>isRight</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span>
<a name="line-342"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"balancing amount is inferred"</span>
<a name="line-343"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-344"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>case</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-345"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>e'</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>pamount</span> <span class='hs-varop'>$</span> <span class='hs-varid'>last</span> <span class='hs-varop'>$</span> <span class='hs-varid'>tpostings</span> <span class='hs-varid'>e'</span><span class='hs-layout'>)</span>
<a name="line-346"></a> <span class='hs-conid'>Left</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error'</span> <span class='hs-str'>"should not happen"</span><span class='hs-layout'>)</span>
<a name="line-347"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>balanceTransaction</span> <span class='hs-conid'>Nothing</span> <span class='hs-layout'>(</span><span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2011/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>""</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-348"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"a"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1.35</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-349"></a> <span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>euros</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Nothing</span>
<a name="line-350"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span>
<a name="line-351"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"balanceTransaction can infer conversion price"</span> <span class='hs-layout'>(</span><span class='hs-varid'>isRight</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span>
<a name="line-352"></a> <span class='hs-varid'>assertEqual</span> <span class='hs-str'>"balancing conversion price is inferred"</span>
<a name="line-353"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span><span class='hs-layout'>{</span><span class='hs-varid'>commodity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>dollar</span><span class='hs-layout'>{</span><span class='hs-varid'>precision</span><span class='hs-keyglyph'>=</span><span class='hs-num'>2</span><span class='hs-layout'>}</span><span class='hs-layout'>,</span>
<a name="line-354"></a> <span class='hs-varid'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-num'>1.35</span><span class='hs-layout'>,</span>
<a name="line-355"></a> <span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>TotalPrice</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span><span class='hs-layout'>{</span><span class='hs-varid'>commodity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>euro</span><span class='hs-layout'>{</span><span class='hs-varid'>precision</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>maxprecision</span><span class='hs-layout'>}</span><span class='hs-layout'>,</span>
<a name="line-356"></a> <span class='hs-varid'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-num'>1</span><span class='hs-layout'>,</span>
<a name="line-357"></a> <span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>}</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>}</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-358"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>case</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-359"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>e'</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>pamount</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>tpostings</span> <span class='hs-varid'>e'</span><span class='hs-layout'>)</span>
<a name="line-360"></a> <span class='hs-conid'>Left</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error'</span> <span class='hs-str'>"should not happen"</span><span class='hs-layout'>)</span>
<a name="line-361"></a>
<a name="line-362"></a> <span class='hs-layout'>,</span><span class='hs-str'>"isTransactionBalanced"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-363"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2009/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"a"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-364"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1.00</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-365"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"c"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.00</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-366"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-367"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"detect balanced"</span> <span class='hs-layout'>(</span><span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-368"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2009/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"a"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-369"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1.00</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-370"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"c"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.01</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-371"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-372"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"detect unbalanced"</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-373"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2009/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"a"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-374"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1.00</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-375"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-376"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"detect unbalanced, one posting"</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-377"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2009/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"a"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-378"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>0</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-379"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-380"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"one zero posting is considered balanced for now"</span> <span class='hs-layout'>(</span><span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-381"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2009/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"a"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-382"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1.00</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-383"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"c"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.00</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-384"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"d"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>100</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>VirtualPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-385"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-386"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"virtual postings don't need to balance"</span> <span class='hs-layout'>(</span><span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-387"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2009/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"a"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-388"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1.00</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-389"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"c"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.00</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-390"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"d"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>100</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>BalancedVirtualPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-391"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-392"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"balanced virtual postings need to balance among themselves"</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-393"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Transaction</span> <span class='hs-layout'>(</span><span class='hs-varid'>parsedate</span> <span class='hs-str'>"2009/01/01"</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-str'>""</span> <span class='hs-str'>"a"</span> <span class='hs-str'>""</span> <span class='hs-conid'>[]</span>
<a name="line-394"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"b"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>1.00</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-395"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"c"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.00</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>RegularPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-396"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"d"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-num'>100</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>BalancedVirtualPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-397"></a> <span class='hs-layout'>,</span><span class='hs-conid'>Posting</span> <span class='hs-conid'>False</span> <span class='hs-str'>"e"</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>100</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-str'>""</span> <span class='hs-conid'>BalancedVirtualPosting</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-398"></a> <span class='hs-keyglyph'>]</span> <span class='hs-str'>""</span>
<a name="line-399"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>"balanced virtual postings need to balance among themselves (2)"</span> <span class='hs-layout'>(</span><span class='hs-varid'>isTransactionBalanced</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-400"></a>
<a name="line-401"></a> <span class='hs-keyglyph'>]</span>
</pre></body>
</html>
