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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE StandaloneDeriving #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-|
<a name="line-3"></a>An 'Amount' is some quantity of money, shares, or anything else.
<a name="line-4"></a>
<a name="line-5"></a>A simple amount is a 'Commodity', quantity pair:
<a name="line-6"></a>
<a name="line-7"></a>@
<a name="line-8"></a> $1
<a name="line-9"></a> £-50
<a name="line-10"></a> EUR 3.44
<a name="line-11"></a> GOOG 500
<a name="line-12"></a> 1.5h
<a name="line-13"></a> 90 apples
<a name="line-14"></a> 0
<a name="line-15"></a>@
<a name="line-16"></a>
<a name="line-17"></a>An amount may also have a per-unit price, or conversion rate, in terms
<a name="line-18"></a>of some other commodity. If present, this is displayed after \@:
<a name="line-19"></a>
<a name="line-20"></a>@
<a name="line-21"></a> EUR 3 \@ $1.35
<a name="line-22"></a>@
<a name="line-23"></a>
<a name="line-24"></a>A 'MixedAmount' is zero or more simple amounts. Mixed amounts are
<a name="line-25"></a>usually normalised so that there is no more than one amount in each
<a name="line-26"></a>commodity, and no zero amounts (or, there is just a single zero amount
<a name="line-27"></a>and no others.):
<a name="line-28"></a>
<a name="line-29"></a>@
<a name="line-30"></a> $50 + EUR 3
<a name="line-31"></a> 16h + $13.55 + AAPL 500 + 6 oranges
<a name="line-32"></a> 0
<a name="line-33"></a>@
<a name="line-34"></a>
<a name="line-35"></a>We can do limited arithmetic with simple or mixed amounts: either
<a name="line-36"></a>price-preserving arithmetic with similarly-priced amounts, or
<a name="line-37"></a>price-discarding arithmetic which ignores and discards prices.
<a name="line-38"></a>
<a name="line-39"></a>-}</span>
<a name="line-40"></a>
<a name="line-41"></a><span class='hs-comment'>-- XXX due for review/rewrite</span>
<a name="line-42"></a>
<a name="line-43"></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'>Amount</span> <span class='hs-layout'>(</span>
<a name="line-44"></a> <span class='hs-varid'>amounts</span><span class='hs-layout'>,</span>
<a name="line-45"></a> <span class='hs-varid'>canonicaliseAmount</span><span class='hs-layout'>,</span>
<a name="line-46"></a> <span class='hs-varid'>canonicaliseMixedAmount</span><span class='hs-layout'>,</span>
<a name="line-47"></a> <span class='hs-varid'>convertMixedAmountToSimilarCommodity</span><span class='hs-layout'>,</span>
<a name="line-48"></a> <span class='hs-varid'>costOfAmount</span><span class='hs-layout'>,</span>
<a name="line-49"></a> <span class='hs-varid'>costOfMixedAmount</span><span class='hs-layout'>,</span>
<a name="line-50"></a> <span class='hs-varid'>divideAmount</span><span class='hs-layout'>,</span>
<a name="line-51"></a> <span class='hs-varid'>divideMixedAmount</span><span class='hs-layout'>,</span>
<a name="line-52"></a> <span class='hs-varid'>isNegativeMixedAmount</span><span class='hs-layout'>,</span>
<a name="line-53"></a> <span class='hs-varid'>isReallyZeroMixedAmountCost</span><span class='hs-layout'>,</span>
<a name="line-54"></a> <span class='hs-varid'>isZeroMixedAmount</span><span class='hs-layout'>,</span>
<a name="line-55"></a> <span class='hs-varid'>maxprecision</span><span class='hs-layout'>,</span>
<a name="line-56"></a> <span class='hs-varid'>maxprecisionwithpoint</span><span class='hs-layout'>,</span>
<a name="line-57"></a> <span class='hs-varid'>missingamt</span><span class='hs-layout'>,</span>
<a name="line-58"></a> <span class='hs-varid'>normaliseMixedAmount</span><span class='hs-layout'>,</span>
<a name="line-59"></a> <span class='hs-varid'>nullamt</span><span class='hs-layout'>,</span>
<a name="line-60"></a> <span class='hs-varid'>nullmixedamt</span><span class='hs-layout'>,</span>
<a name="line-61"></a> <span class='hs-varid'>punctuatethousands</span><span class='hs-layout'>,</span>
<a name="line-62"></a> <span class='hs-varid'>setAmountPrecision</span><span class='hs-layout'>,</span>
<a name="line-63"></a> <span class='hs-varid'>setMixedAmountPrecision</span><span class='hs-layout'>,</span>
<a name="line-64"></a> <span class='hs-varid'>showAmountDebug</span><span class='hs-layout'>,</span>
<a name="line-65"></a> <span class='hs-varid'>showMixedAmount</span><span class='hs-layout'>,</span>
<a name="line-66"></a> <span class='hs-varid'>showMixedAmountDebug</span><span class='hs-layout'>,</span>
<a name="line-67"></a> <span class='hs-varid'>showMixedAmountOrZero</span><span class='hs-layout'>,</span>
<a name="line-68"></a> <span class='hs-varid'>showMixedAmountOrZeroWithoutPrice</span><span class='hs-layout'>,</span>
<a name="line-69"></a> <span class='hs-varid'>showMixedAmountWithoutPrice</span><span class='hs-layout'>,</span>
<a name="line-70"></a> <span class='hs-varid'>showMixedAmountWithPrecision</span><span class='hs-layout'>,</span>
<a name="line-71"></a> <span class='hs-varid'>sumMixedAmountsPreservingHighestPrecision</span><span class='hs-layout'>,</span>
<a name="line-72"></a> <span class='hs-varid'>tests_Hledger_Data_Amount</span>
<a name="line-73"></a> <span class='hs-comment'>-- Hledger.Data.Amount.tests_Hledger_Data_Amount</span>
<a name="line-74"></a> <span class='hs-layout'>)</span>
<a name="line-75"></a><span class='hs-keyword'>where</span>
<a name="line-76"></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-77"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-layout'>(</span><span class='hs-varid'>findWithDefault</span><span class='hs-layout'>)</span>
<a name="line-78"></a>
<a name="line-79"></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-80"></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-81"></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-82"></a>
<a name="line-83"></a>
<a name="line-84"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>Amount</span> <span class='hs-keyword'>where</span> <span class='hs-varid'>show</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showAmount</span>
<a name="line-85"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyword'>where</span> <span class='hs-varid'>show</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showMixedAmount</span>
<a name="line-86"></a><span class='hs-keyword'>deriving</span> <span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>HistoricalPrice</span>
<a name="line-87"></a>
<a name="line-88"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Num</span> <span class='hs-conid'>Amount</span> <span class='hs-keyword'>where</span>
<a name="line-89"></a> <span class='hs-varid'>abs</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-varid'>q</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-varid'>abs</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span> <span class='hs-varid'>p</span>
<a name="line-90"></a> <span class='hs-varid'>signum</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-varid'>q</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-varid'>signum</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span> <span class='hs-varid'>p</span>
<a name="line-91"></a> <span class='hs-varid'>fromInteger</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-92"></a> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>similarAmountsOp</span> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span>
<a name="line-93"></a> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>similarAmountsOp</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-layout'>)</span>
<a name="line-94"></a> <span class='hs-layout'>(</span><span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>similarAmountsOp</span> <span class='hs-layout'>(</span><span class='hs-varop'>*</span><span class='hs-layout'>)</span>
<a name="line-95"></a>
<a name="line-96"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Num</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyword'>where</span>
<a name="line-97"></a> <span class='hs-varid'>fromInteger</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</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'>comm</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span>
<a name="line-98"></a> <span class='hs-varid'>negate</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>negateAmountPreservingPrice</span> <span class='hs-keyword'>as</span>
<a name="line-99"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>negateAmountPreservingPrice</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>price</span> <span class='hs-varid'>a</span><span class='hs-layout'>}</span>
<a name="line-100"></a> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>normaliseMixedAmount</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>as</span> <span class='hs-varop'>++</span> <span class='hs-varid'>bs</span>
<a name="line-101"></a> <span class='hs-layout'>(</span><span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error'</span> <span class='hs-str'>"programming error, mixed amounts do not support multiplication"</span>
<a name="line-102"></a> <span class='hs-varid'>abs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error'</span> <span class='hs-str'>"programming error, mixed amounts do not support abs"</span>
<a name="line-103"></a> <span class='hs-varid'>signum</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error'</span> <span class='hs-str'>"programming error, mixed amounts do not support signum"</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="similarAmountsOp"></a><span class='hs-comment'>-- | Apply a binary arithmetic operator to two amounts, after converting</span>
<a name="line-106"></a><span class='hs-comment'>-- the first to the commodity (and display precision) of the second in a</span>
<a name="line-107"></a><span class='hs-comment'>-- simplistic way. This should be used only for two amounts in the same</span>
<a name="line-108"></a><span class='hs-comment'>-- commodity, since the conversion rate is assumed to be 1.</span>
<a name="line-109"></a><span class='hs-comment'>-- NB preserving the second commodity is preferred since sum and other</span>
<a name="line-110"></a><span class='hs-comment'>-- folds start with the no-commodity zero amount.</span>
<a name="line-111"></a><span class='hs-definition'>similarAmountsOp</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-112"></a><span class='hs-definition'>similarAmountsOp</span> <span class='hs-varid'>op</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>bc</span> <span class='hs-varid'>bq</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-113"></a> <span class='hs-conid'>Amount</span> <span class='hs-varid'>bc</span> <span class='hs-layout'>(</span><span class='hs-varid'>quantity</span> <span class='hs-layout'>(</span><span class='hs-varid'>convertAmountToSimilarCommodity</span> <span class='hs-varid'>bc</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-varop'>`op`</span> <span class='hs-varid'>bq</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-114"></a>
<a name="line-115"></a><a name="convertAmountToSimilarCommodity"></a><span class='hs-comment'>-- | Convert an amount to the specified commodity, assuming an exchange rate of 1.</span>
<a name="line-116"></a><span class='hs-definition'>convertAmountToSimilarCommodity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Commodity</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-117"></a><span class='hs-definition'>convertAmountToSimilarCommodity</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>q</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-varid'>q</span> <span class='hs-conid'>Nothing</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="convertMixedAmountToSimilarCommodity"></a><span class='hs-comment'>-- | Convert a mixed amount to the specified commodity, assuming an exchange rate of 1.</span>
<a name="line-120"></a><span class='hs-definition'>convertMixedAmountToSimilarCommodity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Commodity</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-121"></a><span class='hs-definition'>convertMixedAmountToSimilarCommodity</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-varid'>total</span> <span class='hs-conid'>Nothing</span>
<a name="line-122"></a> <span class='hs-keyword'>where</span>
<a name="line-123"></a> <span class='hs-varid'>total</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sum</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>quantity</span> <span class='hs-varop'>.</span> <span class='hs-varid'>convertAmountToSimilarCommodity</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span>
<a name="line-124"></a>
<a name="line-125"></a><a name="costOfAmount"></a><span class='hs-comment'>-- | Convert an amount to the commodity of its saved price, if any. Notes:</span>
<a name="line-126"></a><span class='hs-comment'>-- - price amounts must be MixedAmounts with exactly one component Amount (or there will be a runtime error)</span>
<a name="line-127"></a><span class='hs-comment'>-- - price amounts should be positive, though this is not currently enforced</span>
<a name="line-128"></a><span class='hs-definition'>costOfAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-129"></a><span class='hs-definition'>costOfAmount</span> <span class='hs-varid'>a</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>q</span> <span class='hs-varid'>price</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-130"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>price</span> <span class='hs-keyword'>of</span>
<a name="line-131"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-132"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnitPrice</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'>pc</span> <span class='hs-varid'>pq</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>pc</span> <span class='hs-layout'>(</span><span class='hs-varid'>pq</span><span class='hs-varop'>*</span><span class='hs-varid'>q</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-133"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>TotalPrice</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'>pc</span> <span class='hs-varid'>pq</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>pc</span> <span class='hs-layout'>(</span><span class='hs-varid'>pq</span><span class='hs-varop'>*</span><span class='hs-varid'>signum</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-134"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error'</span> <span class='hs-str'>"costOfAmount: Malformed price encountered, programmer error"</span>
<a name="line-135"></a>
<a name="line-136"></a><a name="showAmountWithPrecision"></a><span class='hs-comment'>-- | Get the string representation of an amount, based on its commodity's</span>
<a name="line-137"></a><span class='hs-comment'>-- display settings except using the specified precision.</span>
<a name="line-138"></a><span class='hs-definition'>showAmountWithPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-139"></a><span class='hs-definition'>showAmountWithPrecision</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showAmount</span> <span class='hs-varop'>.</span> <span class='hs-varid'>setAmountPrecision</span> <span class='hs-varid'>p</span>
<a name="line-140"></a>
<a name="line-141"></a><a name="setAmountPrecision"></a><span class='hs-definition'>setAmountPrecision</span> <span class='hs-varid'>p</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-keyglyph'>=</span> <span class='hs-varid'>a</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'>precision</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>p</span><span class='hs-layout'>}</span><span class='hs-layout'>}</span>
<a name="line-142"></a>
<a name="line-143"></a><a name="showAmountDebug"></a><span class='hs-comment'>-- XXX refactor</span>
<a name="line-144"></a><span class='hs-comment'>-- | Get the unambiguous string representation of an amount, for debugging.</span>
<a name="line-145"></a><span class='hs-definition'>showAmountDebug</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-146"></a><span class='hs-definition'>showAmountDebug</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-varid'>q</span> <span class='hs-varid'>pri</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printf</span> <span class='hs-str'>"Amount {commodity = %s, quantity = %s, price = %s}"</span>
<a name="line-147"></a> <span class='hs-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>maybe</span> <span class='hs-str'>""</span> <span class='hs-varid'>showPriceDebug</span> <span class='hs-varid'>pri</span><span class='hs-layout'>)</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="showAmountWithoutPrice"></a><span class='hs-comment'>-- | Get the string representation of an amount, without any \@ price.</span>
<a name="line-150"></a><span class='hs-definition'>showAmountWithoutPrice</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-151"></a><span class='hs-definition'>showAmountWithoutPrice</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showAmount</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-conid'>Nothing</span><span class='hs-layout'>}</span>
<a name="line-152"></a>
<a name="line-153"></a><a name="showAmountWithoutPriceOrCommodity"></a><span class='hs-comment'>-- | Get the string representation of an amount, without any price or commodity symbol.</span>
<a name="line-154"></a><span class='hs-definition'>showAmountWithoutPriceOrCommodity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-155"></a><span class='hs-definition'>showAmountWithoutPriceOrCommodity</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-keyglyph'>=</span> <span class='hs-varid'>showAmount</span> <span class='hs-varid'>a</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'>symbol</span><span class='hs-keyglyph'>=</span><span class='hs-str'>""</span><span class='hs-layout'>}</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>
<a name="line-156"></a>
<a name="line-157"></a><a name="showPrice"></a><span class='hs-definition'>showPrice</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Price</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-158"></a><span class='hs-definition'>showPrice</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnitPrice</span> <span class='hs-varid'>pa</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>" @ "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showMixedAmount</span> <span class='hs-varid'>pa</span>
<a name="line-159"></a><span class='hs-definition'>showPrice</span> <span class='hs-layout'>(</span><span class='hs-conid'>TotalPrice</span> <span class='hs-varid'>pa</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>" @@ "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showMixedAmount</span> <span class='hs-varid'>pa</span>
<a name="line-160"></a>
<a name="line-161"></a><a name="showPriceDebug"></a><span class='hs-definition'>showPriceDebug</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Price</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-162"></a><span class='hs-definition'>showPriceDebug</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnitPrice</span> <span class='hs-varid'>pa</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>" @ "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showMixedAmountDebug</span> <span class='hs-varid'>pa</span>
<a name="line-163"></a><span class='hs-definition'>showPriceDebug</span> <span class='hs-layout'>(</span><span class='hs-conid'>TotalPrice</span> <span class='hs-varid'>pa</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>" @@ "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showMixedAmountDebug</span> <span class='hs-varid'>pa</span>
<a name="line-164"></a>
<a name="line-165"></a><a name="showAmount"></a><span class='hs-comment'>-- | Get the string representation of an amount, based on its commodity's</span>
<a name="line-166"></a><span class='hs-comment'>-- display settings. Amounts which look like zero are rendered without sign or commodity.</span>
<a name="line-167"></a><span class='hs-definition'>showAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-168"></a><span class='hs-definition'>showAmount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Commodity</span> <span class='hs-layout'>{</span><span class='hs-varid'>symbol</span><span class='hs-keyglyph'>=</span><span class='hs-str'>"AUTO"</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span> <span class='hs-comment'>-- can appear in an error message</span>
<a name="line-169"></a><span class='hs-definition'>showAmount</span> <span class='hs-varid'>a</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Commodity</span> <span class='hs-layout'>{</span><span class='hs-varid'>symbol</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>sym</span><span class='hs-layout'>,</span><span class='hs-varid'>side</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>side</span><span class='hs-layout'>,</span><span class='hs-varid'>spaced</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>spaced</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>pri</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-170"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>side</span> <span class='hs-keyword'>of</span>
<a name="line-171"></a> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>printf</span> <span class='hs-str'>"%s%s%s%s"</span> <span class='hs-varid'>sym'</span> <span class='hs-varid'>space</span> <span class='hs-varid'>quantity'</span> <span class='hs-varid'>price</span>
<a name="line-172"></a> <span class='hs-conid'>R</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>printf</span> <span class='hs-str'>"%s%s%s%s"</span> <span class='hs-varid'>quantity'</span> <span class='hs-varid'>space</span> <span class='hs-varid'>sym'</span> <span class='hs-varid'>price</span>
<a name="line-173"></a> <span class='hs-keyword'>where</span>
<a name="line-174"></a> <span class='hs-varid'>quantity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showamountquantity</span> <span class='hs-varid'>a</span>
<a name="line-175"></a> <span class='hs-varid'>displayingzero</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</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-str'>"123456789"</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>quantity</span>
<a name="line-176"></a> <span class='hs-layout'>(</span><span class='hs-varid'>quantity'</span><span class='hs-layout'>,</span><span class='hs-varid'>sym'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>displayingzero</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-str'>"0"</span><span class='hs-layout'>,</span><span class='hs-str'>""</span><span class='hs-layout'>)</span>
<a name="line-177"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>quantity</span><span class='hs-layout'>,</span><span class='hs-varid'>quoteCommoditySymbolIfNeeded</span> <span class='hs-varid'>sym</span><span class='hs-layout'>)</span>
<a name="line-178"></a> <span class='hs-varid'>space</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>sym'</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>spaced</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-179"></a> <span class='hs-varid'>price</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-str'>""</span> <span class='hs-varid'>showPrice</span> <span class='hs-varid'>pri</span>
<a name="line-180"></a>
<a name="line-181"></a><a name="showamountquantity"></a><span class='hs-comment'>-- | Get the string representation of the number part of of an amount,</span>
<a name="line-182"></a><span class='hs-comment'>-- using the display settings from its commodity.</span>
<a name="line-183"></a><span class='hs-definition'>showamountquantity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-184"></a><span class='hs-definition'>showamountquantity</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Commodity</span> <span class='hs-layout'>{</span><span class='hs-varid'>decimalpoint</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>d</span><span class='hs-layout'>,</span><span class='hs-varid'>precision</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span><span class='hs-varid'>separator</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span><span class='hs-varid'>separatorpositions</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>spos</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>q</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-185"></a> <span class='hs-varid'>punctuatenumber</span> <span class='hs-varid'>d</span> <span class='hs-varid'>s</span> <span class='hs-varid'>spos</span> <span class='hs-varop'>$</span> <span class='hs-varid'>qstr</span>
<a name="line-186"></a> <span class='hs-keyword'>where</span>
<a name="line-187"></a> <span class='hs-comment'>-- isint n = fromIntegral (round n) == n</span>
<a name="line-188"></a> <span class='hs-varid'>qstr</span> <span class='hs-comment'>-- p == maxprecision && isint q = printf "%d" (round q::Integer)</span>
<a name="line-189"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>p</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxprecisionwithpoint</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printf</span> <span class='hs-str'>"%f"</span> <span class='hs-varid'>q</span>
<a name="line-190"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>p</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxprecision</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>chopdotzero</span> <span class='hs-varop'>$</span> <span class='hs-varid'>printf</span> <span class='hs-str'>"%f"</span> <span class='hs-varid'>q</span>
<a name="line-191"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printf</span> <span class='hs-layout'>(</span><span class='hs-str'>"%."</span><span class='hs-varop'>++</span><span class='hs-varid'>show</span> <span class='hs-varid'>p</span><span class='hs-varop'>++</span><span class='hs-str'>"f"</span><span class='hs-layout'>)</span> <span class='hs-varid'>q</span>
<a name="line-192"></a>
<a name="line-193"></a><a name="chopdotzero"></a><span class='hs-definition'>chopdotzero</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>str</span> <span class='hs-keyword'>of</span>
<a name="line-194"></a> <span class='hs-chr'>'0'</span><span class='hs-conop'>:</span><span class='hs-chr'>'.'</span><span class='hs-conop'>:</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span>
<a name="line-195"></a> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span>
<a name="line-196"></a>
<a name="line-197"></a><a name="maxprecision"></a><span class='hs-comment'>-- | A special precision value meaning show all available digits.</span>
<a name="line-198"></a><span class='hs-definition'>maxprecision</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>999998</span>
<a name="line-199"></a><a name="maxprecisionwithpoint"></a><span class='hs-comment'>-- | Similar, forces display of a decimal point.</span>
<a name="line-200"></a><span class='hs-definition'>maxprecisionwithpoint</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>999999</span>
<a name="line-201"></a>
<a name="line-202"></a><a name="punctuatenumber"></a><span class='hs-comment'>-- | Replace a number string's decimal point with the specified character,</span>
<a name="line-203"></a><span class='hs-comment'>-- and add the specified digit group separators.</span>
<a name="line-204"></a><span class='hs-definition'>punctuatenumber</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Int</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-205"></a><span class='hs-definition'>punctuatenumber</span> <span class='hs-varid'>dec</span> <span class='hs-varid'>sep</span> <span class='hs-varid'>grps</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sign</span> <span class='hs-varop'>++</span> <span class='hs-varid'>reverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>addseps</span> <span class='hs-varid'>sep</span> <span class='hs-layout'>(</span><span class='hs-varid'>extend</span> <span class='hs-varid'>grps</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-varid'>frac''</span>
<a name="line-206"></a> <span class='hs-keyword'>where</span>
<a name="line-207"></a> <span class='hs-layout'>(</span><span class='hs-varid'>sign</span><span class='hs-layout'>,</span><span class='hs-varid'>num</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>break</span> <span class='hs-varid'>isDigit</span> <span class='hs-varid'>str</span>
<a name="line-208"></a> <span class='hs-layout'>(</span><span class='hs-varid'>int</span><span class='hs-layout'>,</span><span class='hs-varid'>frac</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-chr'>'.'</span><span class='hs-layout'>)</span> <span class='hs-varid'>num</span>
<a name="line-209"></a> <span class='hs-varid'>frac'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-chr'>'.'</span><span class='hs-layout'>)</span> <span class='hs-varid'>frac</span>
<a name="line-210"></a> <span class='hs-varid'>frac''</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>null</span> <span class='hs-varid'>frac'</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span>
<a name="line-211"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dec</span><span class='hs-conop'>:</span><span class='hs-varid'>frac'</span>
<a name="line-212"></a> <span class='hs-varid'>extend</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-213"></a> <span class='hs-varid'>extend</span> <span class='hs-varid'>gs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>init</span> <span class='hs-varid'>gs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>repeat</span> <span class='hs-layout'>(</span><span class='hs-varid'>last</span> <span class='hs-varid'>gs</span><span class='hs-layout'>)</span>
<a name="line-214"></a> <span class='hs-varid'>addseps</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>str</span>
<a name="line-215"></a> <span class='hs-varid'>addseps</span> <span class='hs-varid'>sep</span> <span class='hs-layout'>(</span><span class='hs-varid'>g</span><span class='hs-conop'>:</span><span class='hs-varid'>gs</span><span class='hs-layout'>)</span> <span class='hs-varid'>str</span>
<a name="line-216"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>length</span> <span class='hs-varid'>str</span> <span class='hs-varop'><=</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>str</span>
<a name="line-217"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitAt</span> <span class='hs-varid'>g</span> <span class='hs-varid'>str</span>
<a name="line-218"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>s</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>sep</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>addseps</span> <span class='hs-varid'>sep</span> <span class='hs-varid'>gs</span> <span class='hs-varid'>rest</span>
<a name="line-219"></a>
<a name="line-220"></a><a name="punctuatethousands"></a><span class='hs-comment'>-- | Add thousands-separating commas to a decimal number string</span>
<a name="line-221"></a><span class='hs-definition'>punctuatethousands</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-222"></a><span class='hs-definition'>punctuatethousands</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span>
<a name="line-223"></a> <span class='hs-varid'>sign</span> <span class='hs-varop'>++</span> <span class='hs-varid'>addcommas</span> <span class='hs-varid'>int</span> <span class='hs-varop'>++</span> <span class='hs-varid'>frac</span>
<a name="line-224"></a> <span class='hs-keyword'>where</span>
<a name="line-225"></a> <span class='hs-layout'>(</span><span class='hs-varid'>sign</span><span class='hs-layout'>,</span><span class='hs-varid'>num</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>break</span> <span class='hs-varid'>isDigit</span> <span class='hs-varid'>s</span>
<a name="line-226"></a> <span class='hs-layout'>(</span><span class='hs-varid'>int</span><span class='hs-layout'>,</span><span class='hs-varid'>frac</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-chr'>'.'</span><span class='hs-layout'>)</span> <span class='hs-varid'>num</span>
<a name="line-227"></a> <span class='hs-varid'>addcommas</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>.</span> <span class='hs-varid'>intersperse</span> <span class='hs-str'>","</span> <span class='hs-varop'>.</span> <span class='hs-varid'>triples</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span>
<a name="line-228"></a> <span class='hs-varid'>triples</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-229"></a> <span class='hs-varid'>triples</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>take</span> <span class='hs-num'>3</span> <span class='hs-varid'>l</span> <span class='hs-conop'>:</span> <span class='hs-varid'>triples</span> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-num'>3</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-230"></a>
<a name="line-231"></a><a name="isZeroAmount"></a><span class='hs-comment'>-- | Does this amount appear to be zero when displayed with its given precision ?</span>
<a name="line-232"></a><span class='hs-definition'>isZeroAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-233"></a><span class='hs-definition'>isZeroAmount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</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-str'>"123456789"</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showAmountWithoutPriceOrCommodity</span>
<a name="line-234"></a>
<a name="line-235"></a><a name="isReallyZeroAmount"></a><span class='hs-comment'>-- | Is this amount "really" zero, regardless of the display precision ?</span>
<a name="line-236"></a><span class='hs-comment'>-- Since we are using floating point, for now just test to some high precision.</span>
<a name="line-237"></a><span class='hs-definition'>isReallyZeroAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-238"></a><span class='hs-definition'>isReallyZeroAmount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</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-str'>"123456789"</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>printf</span> <span class='hs-layout'>(</span><span class='hs-str'>"%."</span><span class='hs-varop'>++</span><span class='hs-varid'>show</span> <span class='hs-varid'>zeroprecision</span><span class='hs-varop'>++</span><span class='hs-str'>"f"</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>quantity</span>
<a name="line-239"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>zeroprecision</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>8</span>
<a name="line-240"></a>
<a name="line-241"></a><a name="isNegativeAmount"></a><span class='hs-comment'>-- | Is this amount negative ? The price is ignored.</span>
<a name="line-242"></a><span class='hs-definition'>isNegativeAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-243"></a><span class='hs-definition'>isNegativeAmount</span> <span class='hs-conid'>Amount</span><span class='hs-layout'>{</span><span class='hs-varid'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>q</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>q</span> <span class='hs-varop'><</span> <span class='hs-num'>0</span>
<a name="line-244"></a>
<a name="line-245"></a><a name="amounts"></a><span class='hs-comment'>-- | Access a mixed amount's components.</span>
<a name="line-246"></a><span class='hs-definition'>amounts</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span><span class='hs-keyglyph'>]</span>
<a name="line-247"></a><span class='hs-definition'>amounts</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>as</span>
<a name="line-248"></a>
<a name="line-249"></a><a name="isZeroMixedAmount"></a><span class='hs-comment'>-- | Does this mixed amount appear to be zero when displayed with its given precision ?</span>
<a name="line-250"></a><span class='hs-definition'>isZeroMixedAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-251"></a><span class='hs-definition'>isZeroMixedAmount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>all</span> <span class='hs-varid'>isZeroAmount</span> <span class='hs-varop'>.</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>.</span> <span class='hs-varid'>normaliseMixedAmount</span>
<a name="line-252"></a>
<a name="line-253"></a><a name="isReallyZeroMixedAmount"></a><span class='hs-comment'>-- | Is this mixed amount "really" zero ? See isReallyZeroAmount.</span>
<a name="line-254"></a><span class='hs-definition'>isReallyZeroMixedAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-255"></a><span class='hs-definition'>isReallyZeroMixedAmount</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>all</span> <span class='hs-varid'>isReallyZeroAmount</span> <span class='hs-varop'>.</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>.</span> <span class='hs-varid'>normaliseMixedAmount</span>
<a name="line-256"></a>
<a name="line-257"></a><a name="isNegativeMixedAmount"></a><span class='hs-comment'>-- | Is this mixed amount negative, if it can be normalised to a single commodity ?</span>
<a name="line-258"></a><span class='hs-definition'>isNegativeMixedAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Bool</span>
<a name="line-259"></a><span class='hs-definition'>isNegativeMixedAmount</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-keyword'>as</span> <span class='hs-keyword'>of</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isNegativeAmount</span> <span class='hs-varid'>a</span>
<a name="line-260"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-261"></a> <span class='hs-keyword'>where</span>
<a name="line-262"></a> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normaliseMixedAmount</span> <span class='hs-varid'>m</span>
<a name="line-263"></a>
<a name="line-264"></a><a name="isReallyZeroMixedAmountCost"></a><span class='hs-comment'>-- | Is this mixed amount "really" zero, after converting to cost</span>
<a name="line-265"></a><span class='hs-comment'>-- commodities where possible ?</span>
<a name="line-266"></a><span class='hs-definition'>isReallyZeroMixedAmountCost</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-267"></a><span class='hs-definition'>isReallyZeroMixedAmountCost</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isReallyZeroMixedAmount</span> <span class='hs-varop'>.</span> <span class='hs-varid'>costOfMixedAmount</span>
<a name="line-268"></a>
<a name="line-269"></a><span class='hs-comment'>-- -- | MixedAmount derives Eq in Types.hs, but that doesn't know that we</span>
<a name="line-270"></a><span class='hs-comment'>-- -- want $0 = EUR0 = 0. Yet we don't want to drag all this code in there.</span>
<a name="line-271"></a><span class='hs-comment'>-- -- When zero equality is important, use this, for now; should be used</span>
<a name="line-272"></a><span class='hs-comment'>-- -- everywhere.</span>
<a name="line-273"></a><span class='hs-comment'>-- mixedAmountEquals :: MixedAmount -> MixedAmount -> Bool</span>
<a name="line-274"></a><span class='hs-comment'>-- mixedAmountEquals a b = amounts a' == amounts b' || (isZeroMixedAmount a' && isZeroMixedAmount b')</span>
<a name="line-275"></a><span class='hs-comment'>-- where a' = normaliseMixedAmount a</span>
<a name="line-276"></a><span class='hs-comment'>-- b' = normaliseMixedAmount b</span>
<a name="line-277"></a>
<a name="line-278"></a><a name="showMixedAmount"></a><span class='hs-comment'>-- | Get the string representation of a mixed amount, showing each of</span>
<a name="line-279"></a><span class='hs-comment'>-- its component amounts. NB a mixed amount can have an empty amounts</span>
<a name="line-280"></a><span class='hs-comment'>-- list in which case it shows as \"\".</span>
<a name="line-281"></a><span class='hs-definition'>showMixedAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-282"></a><span class='hs-definition'>showMixedAmount</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>vConcatRightAligned</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>show</span> <span class='hs-varop'>$</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normaliseMixedAmount</span> <span class='hs-varid'>m</span>
<a name="line-283"></a>
<a name="line-284"></a><a name="setMixedAmountPrecision"></a><span class='hs-definition'>setMixedAmountPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-285"></a><span class='hs-definition'>setMixedAmountPrecision</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>setAmountPrecision</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span>
<a name="line-286"></a>
<a name="line-287"></a><a name="showMixedAmountWithPrecision"></a><span class='hs-comment'>-- | Get the string representation of a mixed amount, showing each of its</span>
<a name="line-288"></a><span class='hs-comment'>-- component amounts with the specified precision, ignoring their</span>
<a name="line-289"></a><span class='hs-comment'>-- commoditys' display precision settings. NB a mixed amount can have an</span>
<a name="line-290"></a><span class='hs-comment'>-- empty amounts list in which case it shows as \"\".</span>
<a name="line-291"></a><span class='hs-definition'>showMixedAmountWithPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-292"></a><span class='hs-definition'>showMixedAmountWithPrecision</span> <span class='hs-varid'>p</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-293"></a> <span class='hs-varid'>vConcatRightAligned</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>showAmountWithPrecision</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normaliseMixedAmount</span> <span class='hs-varid'>m</span>
<a name="line-294"></a>
<a name="line-295"></a><a name="showMixedAmountDebug"></a><span class='hs-comment'>-- | Get an unambiguous string representation of a mixed amount for debugging.</span>
<a name="line-296"></a><span class='hs-definition'>showMixedAmountDebug</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-297"></a><span class='hs-definition'>showMixedAmountDebug</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printf</span> <span class='hs-str'>"Mixed [%s]"</span> <span class='hs-keyword'>as</span>
<a name="line-298"></a> <span class='hs-keyword'>where</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intercalate</span> <span class='hs-str'>"\n "</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showAmountDebug</span> <span class='hs-varop'>$</span> <span class='hs-varid'>amounts</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normaliseMixedAmount</span> <span class='hs-varid'>m</span>
<a name="line-299"></a>
<a name="line-300"></a><a name="showMixedAmountWithoutPrice"></a><span class='hs-comment'>-- | Get the string representation of a mixed amount, but without</span>
<a name="line-301"></a><span class='hs-comment'>-- any \@ prices.</span>
<a name="line-302"></a><span class='hs-definition'>showMixedAmountWithoutPrice</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-303"></a><span class='hs-definition'>showMixedAmountWithoutPrice</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>$</span> <span class='hs-varid'>intersperse</span> <span class='hs-str'>"\n"</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showfixedwidth</span> <span class='hs-keyword'>as</span>
<a name="line-304"></a> <span class='hs-keyword'>where</span>
<a name="line-305"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>normaliseMixedAmountIgnoringPrice</span> <span class='hs-varid'>m</span>
<a name="line-306"></a> <span class='hs-varid'>width</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maximum</span> <span class='hs-varop'>$</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'>show</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span>
<a name="line-307"></a> <span class='hs-varid'>showfixedwidth</span> <span class='hs-keyglyph'>=</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'>width</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showAmountWithoutPrice</span>
<a name="line-308"></a>
<a name="line-309"></a><a name="showMixedAmountOrZero"></a><span class='hs-comment'>-- | Get the string representation of a mixed amount, and if it</span>
<a name="line-310"></a><span class='hs-comment'>-- appears to be all zero just show a bare 0, ledger-style.</span>
<a name="line-311"></a><span class='hs-definition'>showMixedAmountOrZero</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-312"></a><span class='hs-definition'>showMixedAmountOrZero</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>missingamt</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span>
<a name="line-313"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isZeroMixedAmount</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"0"</span>
<a name="line-314"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showMixedAmount</span> <span class='hs-varid'>a</span>
<a name="line-315"></a>
<a name="line-316"></a><a name="showMixedAmountOrZeroWithoutPrice"></a><span class='hs-comment'>-- | Get the string representation of a mixed amount, or a bare 0,</span>
<a name="line-317"></a><span class='hs-comment'>-- without any \@ prices.</span>
<a name="line-318"></a><span class='hs-definition'>showMixedAmountOrZeroWithoutPrice</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-319"></a><span class='hs-definition'>showMixedAmountOrZeroWithoutPrice</span> <span class='hs-varid'>a</span>
<a name="line-320"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isZeroMixedAmount</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"0"</span>
<a name="line-321"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showMixedAmountWithoutPrice</span> <span class='hs-varid'>a</span>
<a name="line-322"></a>
<a name="line-323"></a><a name="normaliseMixedAmount"></a><span class='hs-comment'>-- | Simplify a mixed amount by removing redundancy in its component amounts, as follows:</span>
<a name="line-324"></a><span class='hs-comment'>-- 1. sum amounts which have the same commodity (ignoring their price)</span>
<a name="line-325"></a><span class='hs-comment'>-- 2. remove zero amounts</span>
<a name="line-326"></a><span class='hs-comment'>-- 3. if there are no amounts at all, add a single zero amount</span>
<a name="line-327"></a><span class='hs-definition'>normaliseMixedAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-328"></a><span class='hs-definition'>normaliseMixedAmount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varid'>as''</span>
<a name="line-329"></a> <span class='hs-keyword'>where</span>
<a name="line-330"></a> <span class='hs-varid'>as''</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>nonzeros</span> <span class='hs-keyword'>then</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>nullamt</span><span class='hs-keyglyph'>]</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>nonzeros</span>
<a name="line-331"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>nonzeros</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>partition</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>isReallyZeroAmount</span> <span class='hs-varid'>a</span> <span class='hs-varop'>&&</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-varop'>/=</span> <span class='hs-varid'>missingamt</span><span class='hs-layout'>)</span> <span class='hs-varid'>as'</span>
<a name="line-332"></a> <span class='hs-varid'>as'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>sumSamePricedAmountsPreservingPrice</span> <span class='hs-varop'>$</span> <span class='hs-varid'>group</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sort</span> <span class='hs-keyword'>as</span>
<a name="line-333"></a> <span class='hs-varid'>sort</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortBy</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>a1</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>compare</span> <span class='hs-layout'>(</span><span class='hs-varid'>sym</span> <span class='hs-varid'>a1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>sym</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-334"></a> <span class='hs-varid'>group</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>groupBy</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>a1</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>sym</span> <span class='hs-varid'>a1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>sym</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span>
<a name="line-335"></a> <span class='hs-varid'>sym</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>symbol</span> <span class='hs-varop'>.</span> <span class='hs-varid'>commodity</span>
<a name="line-336"></a>
<a name="line-337"></a><a name="canonicaliseMixedAmount"></a><span class='hs-comment'>-- | Set a mixed amount's commodity to the canonicalised commodity from</span>
<a name="line-338"></a><span class='hs-comment'>-- the provided commodity map.</span>
<a name="line-339"></a><span class='hs-definition'>canonicaliseMixedAmount</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'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-340"></a><span class='hs-definition'>canonicaliseMixedAmount</span> <span class='hs-varid'>canonicalcommoditymap</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>canonicaliseAmount</span> <span class='hs-varid'>canonicalcommoditymap</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span>
<a name="line-341"></a>
<a name="line-342"></a><a name="canonicaliseAmount"></a><span class='hs-comment'>-- | Set an amount's commodity to the canonicalised commodity from</span>
<a name="line-343"></a><span class='hs-comment'>-- the provided commodity map.</span>
<a name="line-344"></a><span class='hs-definition'>canonicaliseAmount</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'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-345"></a><span class='hs-definition'>canonicaliseAmount</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-346"></a><span class='hs-definition'>canonicaliseAmount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>canonicalcommoditymap</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fixamount</span>
<a name="line-347"></a> <span class='hs-keyword'>where</span>
<a name="line-348"></a> <span class='hs-comment'>-- like journalCanonicaliseAmounts</span>
<a name="line-349"></a> <span class='hs-varid'>fixamount</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-keyglyph'>=</span> <span class='hs-varid'>a</span><span class='hs-layout'>{</span><span class='hs-varid'>commodity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>fixcommodity</span> <span class='hs-varid'>c</span><span class='hs-layout'>}</span>
<a name="line-350"></a> <span class='hs-varid'>fixcommodity</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Commodity</span><span class='hs-layout'>{</span><span class='hs-varid'>symbol</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>s</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findWithDefault</span> <span class='hs-varid'>c</span> <span class='hs-varid'>s</span> <span class='hs-varid'>canonicalcommoditymap</span>
<a name="line-351"></a>
<a name="line-352"></a><span class='hs-comment'>-- various sum variants..</span>
<a name="line-353"></a>
<a name="line-354"></a><a name="sumAmountsDiscardingPrice"></a><span class='hs-definition'>sumAmountsDiscardingPrice</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nullamt</span>
<a name="line-355"></a><span class='hs-definition'>sumAmountsDiscardingPrice</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>sum</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</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>
<a name="line-356"></a>
<a name="line-357"></a><a name="sumSamePricedAmountsPreservingPrice"></a><span class='hs-definition'>sumSamePricedAmountsPreservingPrice</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nullamt</span>
<a name="line-358"></a><span class='hs-definition'>sumSamePricedAmountsPreservingPrice</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>sum</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>price</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-keyword'>as</span><span class='hs-layout'>}</span>
<a name="line-359"></a>
<a name="line-360"></a><a name="normaliseMixedAmountIgnoringPrice"></a><span class='hs-comment'>-- | Simplify a mixed amount by combining any component amounts which have</span>
<a name="line-361"></a><span class='hs-comment'>-- the same commodity, ignoring and discarding their unit prices if any.</span>
<a name="line-362"></a><span class='hs-comment'>-- Also removes zero amounts, or adds a single zero amount if there are no</span>
<a name="line-363"></a><span class='hs-comment'>-- amounts at all.</span>
<a name="line-364"></a><span class='hs-definition'>normaliseMixedAmountIgnoringPrice</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-365"></a><span class='hs-definition'>normaliseMixedAmountIgnoringPrice</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varid'>as''</span>
<a name="line-366"></a> <span class='hs-keyword'>where</span>
<a name="line-367"></a> <span class='hs-varid'>as''</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>sumAmountsDiscardingPrice</span> <span class='hs-varop'>$</span> <span class='hs-varid'>group</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sort</span> <span class='hs-varid'>as'</span>
<a name="line-368"></a> <span class='hs-varid'>group</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>groupBy</span> <span class='hs-varid'>samesymbol</span> <span class='hs-keyword'>where</span> <span class='hs-varid'>samesymbol</span> <span class='hs-varid'>a1</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sym</span> <span class='hs-varid'>a1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>sym</span> <span class='hs-varid'>a2</span>
<a name="line-369"></a> <span class='hs-varid'>sort</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>comparing</span> <span class='hs-varid'>sym</span><span class='hs-layout'>)</span>
<a name="line-370"></a> <span class='hs-varid'>sym</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>symbol</span> <span class='hs-varop'>.</span> <span class='hs-varid'>commodity</span>
<a name="line-371"></a> <span class='hs-varid'>as'</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>null</span> <span class='hs-varid'>nonzeros</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>zeros</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>nullamt</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span>
<a name="line-372"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nonzeros</span>
<a name="line-373"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>zeros</span><span class='hs-layout'>,</span><span class='hs-varid'>nonzeros</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>partition</span> <span class='hs-varid'>isZeroAmount</span> <span class='hs-keyword'>as</span>
<a name="line-374"></a>
<a name="line-375"></a><a name="sumMixedAmountsPreservingHighestPrecision"></a><span class='hs-definition'>sumMixedAmountsPreservingHighestPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>MixedAmount</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-376"></a><span class='hs-definition'>sumMixedAmountsPreservingHighestPrecision</span> <span class='hs-varid'>ms</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varop'>+~</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-varid'>ms</span>
<a name="line-377"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varop'>+~</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>normaliseMixedAmountPreservingHighestPrecision</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Mixed</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>as</span> <span class='hs-varop'>++</span> <span class='hs-varid'>bs</span>
<a name="line-378"></a>
<a name="line-379"></a><a name="normaliseMixedAmountPreservingHighestPrecision"></a><span class='hs-definition'>normaliseMixedAmountPreservingHighestPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-380"></a><span class='hs-definition'>normaliseMixedAmountPreservingHighestPrecision</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varid'>as''</span>
<a name="line-381"></a> <span class='hs-keyword'>where</span>
<a name="line-382"></a> <span class='hs-varid'>as''</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>sumSamePricedAmountsPreservingPriceAndHighestPrecision</span> <span class='hs-varop'>$</span> <span class='hs-varid'>group</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sort</span> <span class='hs-varid'>as'</span>
<a name="line-383"></a> <span class='hs-varid'>sort</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortBy</span> <span class='hs-varid'>cmpsymbolandprice</span>
<a name="line-384"></a> <span class='hs-varid'>cmpsymbolandprice</span> <span class='hs-varid'>a1</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>compare</span> <span class='hs-layout'>(</span><span class='hs-varid'>sym</span> <span class='hs-varid'>a1</span><span class='hs-layout'>,</span><span class='hs-varid'>price</span> <span class='hs-varid'>a1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>sym</span> <span class='hs-varid'>a2</span><span class='hs-layout'>,</span><span class='hs-varid'>price</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span>
<a name="line-385"></a> <span class='hs-varid'>group</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>groupBy</span> <span class='hs-varid'>samesymbolandprice</span>
<a name="line-386"></a> <span class='hs-varid'>samesymbolandprice</span> <span class='hs-varid'>a1</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>sym</span> <span class='hs-varid'>a1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>sym</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-layout'>(</span><span class='hs-varid'>price</span> <span class='hs-varid'>a1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>price</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span>
<a name="line-387"></a> <span class='hs-varid'>sym</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>symbol</span> <span class='hs-varop'>.</span> <span class='hs-varid'>commodity</span>
<a name="line-388"></a> <span class='hs-varid'>as'</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>null</span> <span class='hs-varid'>nonzeros</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>head</span> <span class='hs-varop'>$</span> <span class='hs-varid'>zeros</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>nullamt</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span>
<a name="line-389"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nonzeros</span>
<a name="line-390"></a> <span class='hs-layout'>(</span><span class='hs-varid'>zeros</span><span class='hs-layout'>,</span><span class='hs-varid'>nonzeros</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>partition</span> <span class='hs-varid'>isReallyZeroAmount</span> <span class='hs-keyword'>as</span>
<a name="line-391"></a>
<a name="line-392"></a><a name="sumSamePricedAmountsPreservingPriceAndHighestPrecision"></a><span class='hs-definition'>sumSamePricedAmountsPreservingPriceAndHighestPrecision</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nullamt</span>
<a name="line-393"></a><span class='hs-definition'>sumSamePricedAmountsPreservingPriceAndHighestPrecision</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>sumAmountsPreservingHighestPrecision</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>price</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-keyword'>as</span><span class='hs-layout'>}</span>
<a name="line-394"></a>
<a name="line-395"></a><a name="sumAmountsPreservingHighestPrecision"></a><span class='hs-definition'>sumAmountsPreservingHighestPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-396"></a><span class='hs-definition'>sumAmountsPreservingHighestPrecision</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varop'>+~</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-keyword'>as</span>
<a name="line-397"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varop'>+~</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>amountopPreservingHighestPrecision</span> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span>
<a name="line-398"></a>
<a name="line-399"></a><a name="amountopPreservingHighestPrecision"></a><span class='hs-definition'>amountopPreservingHighestPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-400"></a><span class='hs-definition'>amountopPreservingHighestPrecision</span> <span class='hs-varid'>op</span> <span class='hs-varid'>a</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>ac</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Commodity</span><span class='hs-layout'>{</span><span class='hs-varid'>precision</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ap</span><span class='hs-layout'>}</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>bc</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Commodity</span><span class='hs-layout'>{</span><span class='hs-varid'>precision</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>bp</span><span class='hs-layout'>}</span> <span class='hs-varid'>bq</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-401"></a> <span class='hs-conid'>Amount</span> <span class='hs-varid'>c</span> <span class='hs-varid'>q</span> <span class='hs-conid'>Nothing</span>
<a name="line-402"></a> <span class='hs-keyword'>where</span>
<a name="line-403"></a> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>quantity</span> <span class='hs-layout'>(</span><span class='hs-varid'>convertAmountToSimilarCommodity</span> <span class='hs-varid'>bc</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-varop'>`op`</span> <span class='hs-varid'>bq</span>
<a name="line-404"></a> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ap</span> <span class='hs-varop'>></span> <span class='hs-varid'>bp</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>ac</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>bc</span>
<a name="line-405"></a><span class='hs-comment'>--</span>
<a name="line-406"></a>
<a name="line-407"></a><a name="costOfMixedAmount"></a><span class='hs-comment'>-- | Convert a mixed amount's component amounts to the commodity of their</span>
<a name="line-408"></a><span class='hs-comment'>-- saved price, if any.</span>
<a name="line-409"></a><span class='hs-definition'>costOfMixedAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-410"></a><span class='hs-definition'>costOfMixedAmount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>costOfAmount</span> <span class='hs-keyword'>as</span>
<a name="line-411"></a>
<a name="line-412"></a><a name="divideMixedAmount"></a><span class='hs-comment'>-- | Divide a mixed amount's quantities by some constant.</span>
<a name="line-413"></a><span class='hs-definition'>divideMixedAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MixedAmount</span>
<a name="line-414"></a><span class='hs-definition'>divideMixedAmount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>divideAmount</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span>
<a name="line-415"></a>
<a name="line-416"></a><a name="divideAmount"></a><span class='hs-comment'>-- | Divide an amount's quantity by some constant.</span>
<a name="line-417"></a><span class='hs-definition'>divideAmount</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Amount</span>
<a name="line-418"></a><span class='hs-definition'>divideAmount</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'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>q</span><span class='hs-layout'>}</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span><span class='hs-layout'>{</span><span class='hs-varid'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>q</span><span class='hs-varop'>/</span><span class='hs-varid'>d</span><span class='hs-layout'>}</span>
<a name="line-419"></a>
<a name="line-420"></a><a name="nullamt"></a><span class='hs-comment'>-- | The empty simple amount.</span>
<a name="line-421"></a><span class='hs-definition'>nullamt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Amount</span>
<a name="line-422"></a><span class='hs-definition'>nullamt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>unknown</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span>
<a name="line-423"></a>
<a name="line-424"></a><a name="nullmixedamt"></a><span class='hs-comment'>-- | The empty mixed amount.</span>
<a name="line-425"></a><span class='hs-definition'>nullmixedamt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span>
<a name="line-426"></a><span class='hs-definition'>nullmixedamt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mixed</span> <span class='hs-conid'>[]</span>
<a name="line-427"></a>
<a name="line-428"></a><a name="missingamt"></a><span class='hs-comment'>-- | A temporary value for parsed transactions which had no amount specified.</span>
<a name="line-429"></a><span class='hs-definition'>missingamt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MixedAmount</span>
<a name="line-430"></a><span class='hs-definition'>missingamt</span> <span class='hs-keyglyph'>=</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-layout'>{</span><span class='hs-varid'>symbol</span><span class='hs-keyglyph'>=</span><span class='hs-str'>"AUTO"</span><span class='hs-layout'>}</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span>
<a name="line-431"></a>
<a name="line-432"></a>
<a name="line-433"></a><a name="tests_Hledger_Data_Amount"></a><span class='hs-definition'>tests_Hledger_Data_Amount</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TestList</span> <span class='hs-keyglyph'>[</span>
<a name="line-434"></a>
<a name="line-435"></a> <span class='hs-str'>"showAmount"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-436"></a> <span class='hs-varid'>showAmount</span> <span class='hs-layout'>(</span><span class='hs-varid'>dollars</span> <span class='hs-num'>0</span> <span class='hs-varop'>+</span> <span class='hs-varid'>pounds</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>"0"</span>
<a name="line-437"></a>
<a name="line-438"></a> <span class='hs-layout'>,</span><span class='hs-str'>"showMixedAmount"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-439"></a> <span class='hs-varid'>showMixedAmount</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'>dollar</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>"0"</span>
<a name="line-440"></a> <span class='hs-varid'>showMixedAmount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>"0"</span>
<a name="line-441"></a> <span class='hs-varid'>showMixedAmount</span> <span class='hs-varid'>missingamt</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>""</span>
<a name="line-442"></a>
<a name="line-443"></a> <span class='hs-layout'>,</span><span class='hs-str'>"showMixedAmountOrZero"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-444"></a> <span class='hs-varid'>showMixedAmountOrZero</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'>dollar</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>"0"</span>
<a name="line-445"></a> <span class='hs-varid'>showMixedAmountOrZero</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>"0"</span>
<a name="line-446"></a> <span class='hs-varid'>showMixedAmountOrZero</span> <span class='hs-varid'>missingamt</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>""</span>
<a name="line-447"></a>
<a name="line-448"></a> <span class='hs-layout'>,</span><span class='hs-str'>"amount arithmetic"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-449"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>a1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dollars</span> <span class='hs-num'>1.23</span>
<a name="line-450"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.23</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-451"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>a3</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.23</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-452"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span>
<a name="line-453"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>a3</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span>
<a name="line-454"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a2</span> <span class='hs-varop'>+</span> <span class='hs-varid'>a3</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>2.46</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-455"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a3</span> <span class='hs-varop'>+</span> <span class='hs-varid'>a3</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>2.46</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-456"></a> <span class='hs-comment'>-- arithmetic with different commodities currently assumes conversion rate 1:</span>
<a name="line-457"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>a4</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>euros</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1.23</span><span class='hs-layout'>)</span>
<a name="line-458"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>""</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isZeroAmount</span> <span class='hs-layout'>(</span><span class='hs-varid'>a1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>a4</span><span class='hs-layout'>)</span>
<a name="line-459"></a>
<a name="line-460"></a> <span class='hs-varid'>sum</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a2</span><span class='hs-layout'>,</span><span class='hs-varid'>a3</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>2.46</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-461"></a> <span class='hs-varid'>sum</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a3</span><span class='hs-layout'>,</span><span class='hs-varid'>a3</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>2.46</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span>
<a name="line-462"></a> <span class='hs-varid'>sum</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a1</span><span class='hs-layout'>,</span><span class='hs-varid'>a2</span><span class='hs-layout'>,</span><span class='hs-varid'>a3</span><span class='hs-layout'>,</span><span class='hs-comment'>-</span><span class='hs-varid'>a3</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Amount</span> <span class='hs-layout'>(</span><span class='hs-varid'>comm</span> <span class='hs-str'>"$"</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span>
<a name="line-463"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>dollar0</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'>0</span><span class='hs-layout'>}</span>
<a name="line-464"></a> <span class='hs-layout'>(</span><span class='hs-varid'>sum</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar</span> <span class='hs-num'>1.25</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar0</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-conid'>Nothing</span><span class='hs-layout'>,</span> <span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>0.25</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-465"></a> <span class='hs-varop'>`is`</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar</span> <span class='hs-num'>0</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-466"></a>
<a name="line-467"></a> <span class='hs-layout'>,</span><span class='hs-str'>"mixed amount arithmetic"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-468"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>dollar0</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'>0</span><span class='hs-layout'>}</span>
<a name="line-469"></a> <span class='hs-layout'>(</span><span class='hs-varid'>sum</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-470"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar</span> <span class='hs-num'>1.25</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-471"></a> <span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar0</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-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-472"></a> <span class='hs-conid'>Amount</span> <span class='hs-varid'>dollar</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>0.25</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-473"></a> <span class='hs-varop'>`is`</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'>0</span> <span class='hs-conid'>Nothing</span><span class='hs-keyglyph'>]</span>
<a name="line-474"></a>
<a name="line-475"></a> <span class='hs-layout'>,</span><span class='hs-str'>"normaliseMixedAmount"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-476"></a> <span class='hs-varid'>normaliseMixedAmount</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mixed</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-conid'>Mixed</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>nullamt</span><span class='hs-keyglyph'>]</span>
<a name="line-477"></a> <span class='hs-varid'>assertBool</span> <span class='hs-str'>""</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isZeroMixedAmount</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normaliseMixedAmount</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-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'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-num'>10</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>
<a name="line-478"></a> <span class='hs-layout'>,</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'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-num'>10</span><span class='hs-layout'>,</span> <span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>TotalPrice</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-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'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-num'>7</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-layout'>)</span><span class='hs-layout'>}</span>
<a name="line-479"></a> <span class='hs-layout'>,</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'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>10</span><span class='hs-layout'>)</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>
<a name="line-480"></a> <span class='hs-layout'>,</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'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>10</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>price</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>TotalPrice</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-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'>quantity</span><span class='hs-keyglyph'>=</span><span class='hs-num'>7</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-layout'>)</span><span class='hs-layout'>}</span>
<a name="line-481"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-482"></a>
<a name="line-483"></a> <span class='hs-layout'>,</span><span class='hs-str'>"punctuatethousands 1"</span> <span class='hs-varop'>~:</span> <span class='hs-varid'>punctuatethousands</span> <span class='hs-str'>""</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>""</span>
<a name="line-484"></a>
<a name="line-485"></a> <span class='hs-layout'>,</span><span class='hs-str'>"punctuatethousands 2"</span> <span class='hs-varop'>~:</span> <span class='hs-varid'>punctuatethousands</span> <span class='hs-str'>"1234567.8901"</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>"1,234,567.8901"</span>
<a name="line-486"></a>
<a name="line-487"></a> <span class='hs-layout'>,</span><span class='hs-str'>"punctuatethousands 3"</span> <span class='hs-varop'>~:</span> <span class='hs-varid'>punctuatethousands</span> <span class='hs-str'>"-100"</span> <span class='hs-varop'>`is`</span> <span class='hs-str'>"-100"</span>
<a name="line-488"></a>
<a name="line-489"></a> <span class='hs-layout'>,</span><span class='hs-str'>"costOfAmount"</span> <span class='hs-varop'>~:</span> <span class='hs-keyword'>do</span>
<a name="line-490"></a> <span class='hs-varid'>costOfAmount</span> <span class='hs-layout'>(</span><span class='hs-varid'>euros</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>`is`</span> <span class='hs-varid'>euros</span> <span class='hs-num'>1</span>
<a name="line-491"></a> <span class='hs-varid'>costOfAmount</span> <span class='hs-layout'>(</span><span class='hs-varid'>euros</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</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'>dollars</span> <span class='hs-num'>2</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span> <span class='hs-varop'>`is`</span> <span class='hs-varid'>dollars</span> <span class='hs-num'>4</span>
<a name="line-492"></a> <span class='hs-varid'>costOfAmount</span> <span class='hs-layout'>(</span><span class='hs-varid'>euros</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</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'>dollars</span> <span class='hs-num'>2</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span> <span class='hs-varop'>`is`</span> <span class='hs-varid'>dollars</span> <span class='hs-num'>2</span>
<a name="line-493"></a> <span class='hs-varid'>costOfAmount</span> <span class='hs-layout'>(</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-layout'>)</span><span class='hs-layout'>{</span><span class='hs-varid'>price</span><span class='hs-keyglyph'>=</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'>dollars</span> <span class='hs-num'>2</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span> <span class='hs-varop'>`is`</span> <span class='hs-varid'>dollars</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-494"></a>
<a name="line-495"></a> <span class='hs-keyglyph'>]</span>
</pre></body>
</html>
