2007-01-30 12:07:12 +03:00
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#!/usr/bin/runhaskell
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2007-02-09 03:18:20 +03:00
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-- hledger - ledger-compatible money management utilities (& haskell study)
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2007-01-28 11:26:25 +03:00
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-- GPLv3, (c) Simon Michael & contributors,
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2007-02-09 03:18:20 +03:00
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--
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-- John Wiegley's ledger is at http://newartisans.com/ledger.html .
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-- Here's the v2.5 grammar:
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2007-01-28 13:30:24 +03:00
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{-
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"The ledger file format is quite simple, but also very flexible. It supports
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many options, though typically the user can ignore most of them. They are
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summarized below. The initial character of each line determines what the
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line means, and how it should be interpreted. Allowable initial characters
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are:
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NUMBER A line beginning with a number denotes an entry. It may be followed by any
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number of lines, each beginning with whitespace, to denote the entry’s account
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transactions. The format of the first line is:
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DATE[=EDATE] [*|!] [(CODE)] DESC
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If ‘*’ appears after the date (with optional effective date), it indicates the entry
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is “cleared”, which can mean whatever the user wants it t omean. If ‘!’ appears
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after the date, it indicates d the entry is “pending”; i.e., tentatively cleared from
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the user’s point of view, but not yet actually cleared. If a ‘CODE’ appears in
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parentheses, it may be used to indicate a check number, or the type of the
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transaction. Following these is the payee, or a description of the transaction.
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The format of each following transaction is:
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ACCOUNT AMOUNT [; NOTE]
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The ‘ACCOUNT’ may be surrounded by parentheses if it is a virtual
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transactions, or square brackets if it is a virtual transactions that must
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balance. The ‘AMOUNT’ can be followed by a per-unit transaction cost,
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by specifying ‘ AMOUNT’, or a complete transaction cost with ‘@ AMOUNT’.
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Lastly, the ‘NOTE’ may specify an actual and/or effective date for the
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transaction by using the syntax ‘[ACTUAL_DATE]’ or ‘[=EFFECTIVE_DATE]’ or
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‘[ACTUAL_DATE=EFFECtIVE_DATE]’.
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= An automated entry. A value expression must appear after the equal sign.
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After this initial line there should be a set of one or more transactions, just as
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if it were normal entry. If the amounts of the transactions have no commodity,
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they will be applied as modifiers to whichever real transaction is matched by
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the value expression.
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~ A period entry. A period expression must appear after the tilde.
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After this initial line there should be a set of one or more transactions, just as
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if it were normal entry.
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! A line beginning with an exclamation mark denotes a command directive. It
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must be immediately followed by the command word. The supported commands
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are:
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‘!include’
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Include the stated ledger file.
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‘!account’
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The account name is given is taken to be the parent of all transac-
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tions that follow, until ‘!end’ is seen.
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‘!end’ Ends an account block.
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; A line beginning with a colon indicates a comment, and is ignored.
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Y If a line begins with a capital Y, it denotes the year used for all subsequent
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entries that give a date without a year. The year should appear immediately
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after the Y, for example: ‘Y2004’. This is useful at the beginning of a file, to
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specify the year for that file. If all entries specify a year, however, this command
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has no effect.
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P Specifies a historical price for a commodity. These are usually found in a pricing
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history file (see the ‘-Q’ option). The syntax is:
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P DATE SYMBOL PRICE
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N SYMBOL Indicates that pricing information is to be ignored for a given symbol, nor will
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quotes ever be downloaded for that symbol. Useful with a home currency, such
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as the dollar ($). It is recommended that these pricing options be set in the price
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database file, which defaults to ‘~/.pricedb’. The syntax for this command is:
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N SYMBOL
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D AMOUNT Specifies the default commodity to use, by specifying an amount in the expected
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format. The entry command will use this commodity as the default when none
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other can be determined. This command may be used multiple times, to set
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the default flags for different commodities; whichever is seen last is used as the
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default commodity. For example, to set US dollars as the default commodity,
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while also setting the thousands flag and decimal flag for that commodity, use:
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D $1,000.00
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C AMOUNT1 = AMOUNT2
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Specifies a commodity conversion, where the first amount is given to be equiv-
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alent to the second amount. The first amount should use the decimal precision
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desired during reporting:
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C 1.00 Kb = 1024 bytes
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i, o, b, h
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These four relate to timeclock support, which permits ledger to read timelog
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files. See the timeclock’s documentation for more info on the syntax of its
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timelog files."
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-}
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2007-02-09 03:18:20 +03:00
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-- parsec example: http://pandoc.googlecode.com/svn/trunk/src/Text/Pandoc/Readers/RST.hs
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2007-01-28 00:51:59 +03:00
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2007-01-30 11:16:07 +03:00
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import Debug.Trace
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import Test.QuickCheck
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import Test.HUnit
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2007-01-29 00:02:16 +03:00
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--import TildeExpand -- confuses my ghc 6.7
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import System (getArgs)
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import System.Directory (getHomeDirectory)
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import System.Environment (getEnv)
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import Control.Exception (assert)
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import Text.ParserCombinators.Parsec
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import qualified Text.ParserCombinators.Parsec.Token as P
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import Text.ParserCombinators.Parsec.Language
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import Text.Printf
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2007-01-30 12:07:12 +03:00
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import Options
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2007-01-28 11:26:25 +03:00
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-- sample data
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sample_entry = "\
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\2007/01/27 * joes diner\n\
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\ expenses:food:dining $10.00\n\
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\ expenses:gifts $10.00\n\
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\ assets:checking $-20.00\n\
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\\n" --"
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sample_entry2 = "\
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\2007/01/28 coopportunity\n\
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\ expenses:food:groceries $47.18\n\
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\ assets:checking\n\
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\\n" --"
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2007-01-28 13:16:13 +03:00
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sample_entry3 = "\
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\2007/01/01 * opening balance\n\
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\ assets:cash $4.82\n\
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\ equity:opening balances\n\
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\\n\
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\2007/01/01 * opening balance\n\
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\ assets:cash $4.82\n\
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\ equity:opening balances\n\
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\\n\
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\2007/01/28 coopportunity\n\
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\ expenses:food:groceries $47.18\n\
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\ assets:checking\n\
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\\n" --"
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2007-01-28 11:26:25 +03:00
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sample_periodic_entry = "\
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\~ monthly from 2007/2/2\n\
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\ assets:saving $200.00\n\
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\ assets:checking\n\
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\\n" --"
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sample_periodic_entry2 = "\
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\~ monthly from 2007/2/2\n\
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\ assets:saving $200.00 ;auto savings\n\
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\ assets:checking\n\
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\\n" --"
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2007-01-28 13:16:13 +03:00
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sample_periodic_entry3 = "\
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\~ monthly from 2007/01/01\n\
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\ assets:cash $4.82\n\
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\ equity:opening balances\n\
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\\n\
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\~ monthly from 2007/01/01\n\
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\ assets:cash $4.82\n\
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\ equity:opening balances\n\
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\\n" --"
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2007-01-28 12:32:24 +03:00
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sample_transaction = " expenses:food:dining $10.00\n"
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sample_transaction2 = " assets:checking\n"
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sample_ledger = "\
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\\n\
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\2007/01/27 * joes diner\n\
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\ expenses:food:dining $10.00\n\
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\ expenses:gifts $10.00\n\
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\ assets:checking $-20.00\n\
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\\n\
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\\n\
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\2007/01/28 coopportunity\n\
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\ expenses:food:groceries $47.18\n\
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\ assets:checking $-47.18\n\
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\\n\
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\" --"
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sample_ledger2 = "\
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\;comment\n\
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\2007/01/27 * joes diner\n\
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\ expenses:food:dining $10.00\n\
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\ assets:checking $-47.18\n\
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\\n" --"
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sample_ledger3 = "\
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\2007/01/27 * joes diner\n\
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\ expenses:food:dining $10.00\n\
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\;intra-entry comment\n\
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\ assets:checking $-47.18\n\
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\\n" --"
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sample_ledger4 = "\
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\!include \"somefile\"\n\
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\2007/01/27 * joes diner\n\
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\ expenses:food:dining $10.00\n\
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\ assets:checking $-47.18\n\
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\\n" --"
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sample_ledger5 = ""
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2007-01-28 13:30:24 +03:00
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sample_ledger6 = "\
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\~ monthly from 2007/1/21\n\
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\ expenses:entertainment $16.23 ;netflix\n\
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\ assets:checking\n\
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\\n\
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\; 2007/01/01 * opening balance\n\
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\; assets:saving $200.04\n\
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\; equity:opening balances \n\
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\\n" --"
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2007-01-28 11:26:25 +03:00
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-- a data model
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data Ledger = Ledger {
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modifier_entries :: [ModifierEntry],
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periodic_entries :: [PeriodicEntry],
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entries :: [Entry]
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} deriving (Show, Eq)
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data ModifierEntry = ModifierEntry { -- aka automated entry
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valueexpr :: String,
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m_transactions :: [Transaction]
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} deriving (Eq)
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data PeriodicEntry = PeriodicEntry {
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periodexpr :: String,
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p_transactions :: [Transaction]
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} deriving (Eq)
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data Entry = Entry {
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date :: Date,
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status :: Bool,
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code :: String,
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description :: String,
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transactions :: [Transaction]
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} deriving (Eq)
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data Transaction = Transaction {
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account :: Account,
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amount :: Amount
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} deriving (Eq)
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data Amount = Amount {
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currency :: String,
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quantity :: Float
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} deriving (Read, Eq)
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type Date = String
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type Account = String
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2007-01-28 11:26:25 +03:00
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-- ledger file parsing
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2007-01-28 12:32:24 +03:00
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2007-01-29 00:23:02 +03:00
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-- set up token parsing, though we're not using it heavily yet
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ledgerLanguageDef = LanguageDef {
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commentStart = ""
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, commentEnd = ""
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, commentLine = ";"
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, nestedComments = False
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, identStart = letter <|> char '_'
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, identLetter = alphaNum <|> oneOf "_':"
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, opStart = opLetter emptyDef
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, opLetter = oneOf "!#$%&*+./<=>?@\\^|-~"
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, reservedOpNames= []
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, reservedNames = []
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, caseSensitive = False
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}
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lexer = P.makeTokenParser ledgerLanguageDef
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whiteSpace = P.whiteSpace lexer
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lexeme = P.lexeme lexer
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symbol = P.symbol lexer
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natural = P.natural lexer
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parens = P.parens lexer
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semi = P.semi lexer
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identifier = P.identifier lexer
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reserved = P.reserved lexer
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reservedOp = P.reservedOp lexer
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2007-01-29 00:23:02 +03:00
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-- parsers
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2007-02-09 03:18:20 +03:00
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ledger :: Parser Ledger
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ledger = do
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ledgernondatalines
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-- for now these must come first, unlike ledger
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modifier_entries <- many ledgermodifierentry
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periodic_entries <- many ledgerperiodicentry
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--
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entries <- (many ledgerentry) <?> "entry"
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eof
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return (Ledger modifier_entries periodic_entries entries)
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2007-02-09 03:18:20 +03:00
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ledgernondatalines :: Parser [String]
|
2007-01-29 00:02:16 +03:00
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ledgernondatalines = many (ledgerdirective <|> ledgercomment <|> do {whiteSpace1; return []})
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2007-02-09 03:18:20 +03:00
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ledgercomment :: Parser String
|
2007-01-29 00:02:16 +03:00
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ledgercomment = char ';' >> restofline <?> "comment"
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2007-01-28 11:26:25 +03:00
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2007-02-09 03:18:20 +03:00
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ledgerdirective :: Parser String
|
2007-01-29 00:02:16 +03:00
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ledgerdirective = char '!' >> restofline <?> "directive"
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2007-01-28 11:26:25 +03:00
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2007-02-09 03:18:20 +03:00
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ledgermodifierentry :: Parser ModifierEntry
|
2007-01-28 11:26:25 +03:00
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ledgermodifierentry = do
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char '=' <?> "entry"
|
2007-01-29 00:33:00 +03:00
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many spacenonewline
|
2007-01-29 00:02:16 +03:00
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valueexpr <- restofline
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transactions <- ledgertransactions
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ledgernondatalines
|
2007-01-28 11:26:25 +03:00
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return (ModifierEntry valueexpr transactions)
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2007-02-09 03:18:20 +03:00
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ledgerperiodicentry :: Parser PeriodicEntry
|
2007-01-28 11:26:25 +03:00
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ledgerperiodicentry = do
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char '~' <?> "entry"
|
2007-01-29 00:33:00 +03:00
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many spacenonewline
|
2007-01-29 00:02:16 +03:00
|
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periodexpr <- restofline
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transactions <- ledgertransactions
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ledgernondatalines
|
2007-01-28 11:26:25 +03:00
|
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|
return (PeriodicEntry periodexpr transactions)
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|
2007-02-09 03:18:20 +03:00
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ledgerentry :: Parser Entry
|
2007-01-28 11:26:25 +03:00
|
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|
|
ledgerentry = do
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date <- ledgerdate
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status <- ledgerstatus
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code <- ledgercode
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|
|
description <- anyChar `manyTill` ledgereol
|
2007-01-29 00:02:16 +03:00
|
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|
transactions <- ledgertransactions
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ledgernondatalines
|
2007-01-28 11:26:25 +03:00
|
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return (Entry date status code description transactions)
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|
2007-02-09 03:18:20 +03:00
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|
ledgerdate :: Parser String
|
2007-01-29 00:02:16 +03:00
|
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|
ledgerdate = do date <- many1 (digit <|> char '/'); many1 spacenonewline; return date
|
2007-01-28 11:26:25 +03:00
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|
2007-02-09 03:18:20 +03:00
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|
ledgerstatus :: Parser Bool
|
2007-01-28 11:26:25 +03:00
|
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|
|
ledgerstatus = try (do { char '*'; many1 spacenonewline; return True } ) <|> return False
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|
2007-02-09 03:18:20 +03:00
|
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|
|
ledgercode :: Parser String
|
2007-01-29 00:29:39 +03:00
|
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|
|
ledgercode = try (do { char '('; code <- anyChar `manyTill` char ')'; many1 spacenonewline; return code } ) <|> return ""
|
2007-01-28 11:26:25 +03:00
|
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|
2007-02-09 03:18:20 +03:00
|
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|
|
ledgertransactions :: Parser [Transaction]
|
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|
|
ledgertransactions = (ledgertransaction <?> "transaction") `manyTill` (newline <?> "blank line")
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|
|
-- => unlike ledger, we need to end the file with a blank line
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|
ledgertransaction :: Parser Transaction
|
2007-01-28 11:26:25 +03:00
|
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|
|
ledgertransaction = do
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|
|
many1 spacenonewline
|
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|
|
account <- ledgeraccount <?> "account"
|
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|
|
amount <- ledgeramount <?> "amount"
|
2007-01-28 12:32:24 +03:00
|
|
|
|
many spacenonewline
|
|
|
|
|
ledgereol
|
2007-01-29 00:02:16 +03:00
|
|
|
|
many ledgercomment
|
2007-01-28 11:26:25 +03:00
|
|
|
|
return (Transaction account amount)
|
|
|
|
|
|
2007-01-29 00:23:02 +03:00
|
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|
|
-- account names may have single spaces in them, and are terminated by two or more spaces
|
2007-02-09 03:18:20 +03:00
|
|
|
|
ledgeraccount :: Parser String
|
2007-01-28 11:26:25 +03:00
|
|
|
|
ledgeraccount = many1 (alphaNum <|> char ':' <|> try (do {spacenonewline; do {notFollowedBy spacenonewline; return ' '}}))
|
|
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|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
ledgeramount :: Parser Amount
|
2007-01-28 11:26:25 +03:00
|
|
|
|
ledgeramount = try (do
|
2007-01-29 00:23:02 +03:00
|
|
|
|
many1 spacenonewline
|
2007-01-28 11:26:25 +03:00
|
|
|
|
currency <- many (noneOf "-.0123456789\n") <?> "currency"
|
2007-01-28 12:32:24 +03:00
|
|
|
|
quantity <- many1 (oneOf "-.0123456789") <?> "quantity"
|
2007-01-28 11:26:25 +03:00
|
|
|
|
return (Amount currency (read quantity))
|
2007-01-28 12:32:24 +03:00
|
|
|
|
) <|>
|
2007-01-29 00:23:02 +03:00
|
|
|
|
return (Amount "" 0)
|
2007-01-28 11:26:25 +03:00
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
ledgereol :: Parser String
|
2007-01-28 12:32:24 +03:00
|
|
|
|
ledgereol = ledgercomment <|> do {newline; return []}
|
2007-01-28 11:26:25 +03:00
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
spacenonewline :: Parser Char
|
2007-01-28 11:26:25 +03:00
|
|
|
|
spacenonewline = satisfy (\c -> c `elem` " \v\f\t")
|
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
restofline :: Parser String
|
|
|
|
|
restofline = anyChar `manyTill` newline
|
|
|
|
|
|
|
|
|
|
whiteSpace1 :: Parser ()
|
|
|
|
|
whiteSpace1 = do space; whiteSpace
|
|
|
|
|
|
2007-01-30 11:16:07 +03:00
|
|
|
|
-- tests
|
|
|
|
|
|
|
|
|
|
test1 = TestCase (assertEqual "1==1" 1 1)
|
|
|
|
|
sometests = TestList [TestLabel "test1" test1]
|
|
|
|
|
|
|
|
|
|
tests = Test.HUnit.test [
|
|
|
|
|
"test1" ~: "1==1" ~: 1 ~=? 1,
|
|
|
|
|
"test2" ~: assertEqual "2==2" 2 2
|
|
|
|
|
]
|
|
|
|
|
|
|
|
|
|
prop_test1 = 1 == 1
|
|
|
|
|
prop2 = 1 == 1
|
2007-02-09 03:18:20 +03:00
|
|
|
|
|
|
|
|
|
test :: IO ()
|
2007-01-29 00:33:00 +03:00
|
|
|
|
test = do
|
2007-01-29 00:02:16 +03:00
|
|
|
|
parseTest ledgertransaction sample_transaction
|
|
|
|
|
parseTest ledgertransaction sample_transaction2
|
|
|
|
|
parseTest ledgerentry sample_entry
|
|
|
|
|
parseTest ledgerentry sample_entry2
|
|
|
|
|
parseTest ledgerentry sample_entry3
|
|
|
|
|
parseTest ledgerperiodicentry sample_periodic_entry
|
|
|
|
|
parseTest ledgerperiodicentry sample_periodic_entry2
|
|
|
|
|
parseTest ledgerperiodicentry sample_periodic_entry3
|
|
|
|
|
parseTest ledger sample_ledger
|
|
|
|
|
parseTest ledger sample_ledger2
|
|
|
|
|
parseTest ledger sample_ledger3
|
|
|
|
|
parseTest ledger sample_ledger4
|
|
|
|
|
parseTest ledger sample_ledger5
|
|
|
|
|
parseTest ledger sample_ledger6
|
|
|
|
|
parseTest ledger sample_periodic_entry
|
|
|
|
|
parseTest ledger sample_periodic_entry2
|
2007-01-29 03:11:36 +03:00
|
|
|
|
parseMyLedgerFile >>= printParseResult
|
2007-01-29 00:02:16 +03:00
|
|
|
|
return ()
|
2007-01-29 00:33:00 +03:00
|
|
|
|
-- assert_ $ amount t1 == 8.50
|
|
|
|
|
-- putStrLn "ok"
|
|
|
|
|
-- where assert_ e = assert e return ()
|
2007-01-29 03:11:36 +03:00
|
|
|
|
|
|
|
|
|
printParseResult r =
|
|
|
|
|
case r of
|
|
|
|
|
Left err -> do putStr "ledger parse error at "; print err
|
|
|
|
|
Right x -> do print x
|
|
|
|
|
|
|
|
|
|
-- ok, what can we do with it ?
|
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
showLedger :: Ledger -> String
|
2007-01-29 03:11:36 +03:00
|
|
|
|
showLedger l = "Ledger has\n"
|
|
|
|
|
++ (showModifierEntries $ modifier_entries l)
|
|
|
|
|
++ (showPeriodicEntries $ periodic_entries l)
|
|
|
|
|
++ (showEntries $ entries l)
|
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
showModifierEntries :: [ModifierEntry] -> String
|
2007-01-29 03:11:36 +03:00
|
|
|
|
showModifierEntries [] = ""
|
|
|
|
|
showModifierEntries es =
|
|
|
|
|
(show n) ++ " modifier " ++ (inflectEntries n) ++ ":\n" ++ unlines (map show es)
|
|
|
|
|
where n = length es
|
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
showPeriodicEntries :: [PeriodicEntry] -> String
|
2007-01-29 03:11:36 +03:00
|
|
|
|
showPeriodicEntries [] = ""
|
|
|
|
|
showPeriodicEntries es =
|
|
|
|
|
(show n) ++ " periodic " ++ (inflectEntries n) ++ ":\n" ++ unlines (map show es)
|
|
|
|
|
where n = length es
|
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
showEntries :: [Entry] -> String
|
2007-01-29 03:11:36 +03:00
|
|
|
|
showEntries [] = ""
|
|
|
|
|
showEntries es =
|
|
|
|
|
(show n) ++ " " ++ (inflectEntries n) ++ ":\n" ++ unlines (map show es)
|
|
|
|
|
where n = length es
|
|
|
|
|
|
|
|
|
|
inflectEntries 1 = "entry"
|
|
|
|
|
inflectEntries _ = "entries"
|
|
|
|
|
|
|
|
|
|
instance Show ModifierEntry where
|
|
|
|
|
show e = "= " ++ (valueexpr e) ++ "\n" ++ unlines (map show (m_transactions e))
|
|
|
|
|
|
|
|
|
|
instance Show PeriodicEntry where
|
|
|
|
|
show e = "~ " ++ (periodexpr e) ++ "\n" ++ unlines (map show (p_transactions e))
|
|
|
|
|
|
|
|
|
|
instance Show Entry where
|
|
|
|
|
show e = date e ++ " " ++ s ++ c ++ d ++ "\n" ++ unlines (map show (transactions e))
|
2007-01-29 03:29:50 +03:00
|
|
|
|
where
|
|
|
|
|
d = description e
|
|
|
|
|
s = case (status e) of {True -> "* "; False -> ""}
|
|
|
|
|
c = case (length(code e) > 0) of {True -> (code e ++ " "); False -> ""}
|
2007-01-29 03:11:36 +03:00
|
|
|
|
|
|
|
|
|
instance Show Transaction where
|
|
|
|
|
show t = printf " %-40s %20.2s" (take 40 $ account t) (show $ amount t)
|
|
|
|
|
|
|
|
|
|
instance Show Amount where show a = (currency a) ++ (show $ quantity a)
|
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
parseMyLedgerFile :: IO (Either ParseError Ledger)
|
|
|
|
|
parseMyLedgerFile = do
|
|
|
|
|
ledgerFile >>= parseFromFile ledger >>= return
|
|
|
|
|
where
|
|
|
|
|
ledgerFile = do
|
|
|
|
|
filepath <- getEnv "LEDGER" `catch` \_ -> return "ledger.dat"
|
|
|
|
|
-- don't know how to accomplish this great feat
|
|
|
|
|
--ledger_file <- tildeExpand filepath
|
|
|
|
|
let ledger_file = filepath
|
|
|
|
|
return ledger_file
|
|
|
|
|
|
|
|
|
|
-- commands
|
|
|
|
|
|
|
|
|
|
register :: IO ()
|
2007-01-29 03:11:36 +03:00
|
|
|
|
register = do
|
|
|
|
|
p <- parseMyLedgerFile
|
|
|
|
|
case p of
|
|
|
|
|
Left err -> do putStr "ledger parse error at "; print err
|
|
|
|
|
Right l -> putStr $ showLedger l
|
2007-01-28 11:26:25 +03:00
|
|
|
|
|
2007-02-09 03:18:20 +03:00
|
|
|
|
main :: IO ()
|
2007-01-30 12:07:12 +03:00
|
|
|
|
main = do
|
|
|
|
|
(opts, args) <- getArgs >>= getOptions
|
|
|
|
|
putStr "options: "; print opts
|
|
|
|
|
putStr "arguments: "; print args
|
|
|
|
|
if "reg" `elem` args
|
|
|
|
|
then register
|
|
|
|
|
else return ()
|