6bccb847d5
* added showMarketPrice and Hledger.Data.MarketPrice module * showMarketPrice implemented using showDate * attempted to add tests to Hledger.Data.MarketPrice * moved MarketPrice test to Hledger.Read.JournalReader; fixed documentation on MarketPrice; added MarketPrice module to package.yaml
33 lines
899 B
Haskell
33 lines
899 B
Haskell
{-|
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A 'MarketPrice' represents a historical exchange rate between two
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commodities. (Ledger calls them historical prices.) For example, prices
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published by a stock exchange or the foreign exchange market. Some
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commands (balance, currently) can use this information to show the market
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value of things at a given date.
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-}
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{-# LANGUAGE OverloadedStrings, LambdaCase #-}
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module Hledger.Data.MarketPrice
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where
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import qualified Data.Text as T
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import Test.HUnit
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import Hledger.Data.Amount
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import Hledger.Data.Dates
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import Hledger.Data.Types
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-- | Get the string representation of an market price, based on its
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-- commodity's display settings.
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showMarketPrice :: MarketPrice -> String
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showMarketPrice mp = unwords
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[ "P"
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, showDate (mpdate mp)
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, T.unpack (mpcommodity mp)
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, (showAmount . setAmountPrecision maxprecision) (mpamount mp)
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]
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tests_Hledger_Data_MarketPrice = TestList []
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