From 11d354d4265c2102b962b3b6d837ee330ba77161 Mon Sep 17 00:00:00 2001
From: Simon Michael <simon@joyful.com>
Date: Sat, 22 May 2010 22:05:12 +0000
Subject: [PATCH] refactor: renames and cleanups

---
 Hledger/Utils.hs                    |  6 +++---
 hledger-lib/Hledger/Data/IO.hs      |  4 ++--
 hledger-lib/Hledger/Data/Journal.hs |  8 ++++----
 hledger-lib/Hledger/Data/Ledger.hs  |  8 ++++----
 hledger-lib/Hledger/Data/Parse.hs   | 14 +++++++-------
 5 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/Hledger/Utils.hs b/Hledger/Utils.hs
index 2cacf9e9c..d81401ce5 100644
--- a/Hledger/Utils.hs
+++ b/Hledger/Utils.hs
@@ -26,8 +26,8 @@ import System.Time (getClockTime)
 
 -- | Parse the user's specified ledger file and run a hledger command on
 -- it, or report a parse error. This function makes the whole thing go.
--- Warning, this provides only an uncached/unfiltered ledger, so the
--- command should do further processing if needed.
+-- The command will receive an uncached/unfiltered ledger, so should 
+-- process it further if needed.
 withLedgerDo :: [Opt] -> [String] -> String -> ([Opt] -> [String] -> UncachedLedger -> IO ()) -> IO ()
 withLedgerDo opts args cmdname cmd = do
   -- We kludgily read the file before parsing to grab the full text, unless
@@ -44,7 +44,7 @@ withLedgerDo opts args cmdname cmd = do
   let runcmd = cmd opts args . makeUncachedLedger cb f tc txt
   if creating
    then runcmd nulljournal
-   else (runErrorT . parseLedgerFile t) f >>= either parseerror runcmd
+   else (runErrorT . parseJournalFile t) f >>= either parseerror runcmd
     where parseerror e = hPutStrLn stderr e >> exitWith (ExitFailure 1)
 
 -- | Get an uncached ledger from the given string and options, or raise an error.
diff --git a/hledger-lib/Hledger/Data/IO.hs b/hledger-lib/Hledger/Data/IO.hs
index 14a6ee313..d84822493 100644
--- a/hledger-lib/Hledger/Data/IO.hs
+++ b/hledger-lib/Hledger/Data/IO.hs
@@ -7,7 +7,7 @@ module Hledger.Data.IO
 where
 import Control.Monad.Error
 import Hledger.Data.Ledger (makeUncachedLedger)
-import Hledger.Data.Parse (parseLedger)
+import Hledger.Data.Parse (parseJournal)
 import Hledger.Data.Types (FilterSpec(..),WhichDate(..),Journal(..),Ledger(..))
 import Hledger.Data.Utils (getCurrentLocalTime)
 import Hledger.Data.Dates (nulldatespan)
@@ -84,7 +84,7 @@ readLedger f = do
 journalFromString :: String -> IO Journal
 journalFromString s = do
   t <- getCurrentLocalTime
-  liftM (either error id) $ runErrorT $ parseLedger t "(string)" s
+  liftM (either error id) $ runErrorT $ parseJournal t "(string)" s
 
 -- -- | Expand ~ in a file path (does not handle ~name).
 -- tildeExpand :: FilePath -> IO FilePath
diff --git a/hledger-lib/Hledger/Data/Journal.hs b/hledger-lib/Hledger/Data/Journal.hs
index 4c6a2b48d..7225f0a38 100644
--- a/hledger-lib/Hledger/Data/Journal.hs
+++ b/hledger-lib/Hledger/Data/Journal.hs
@@ -273,10 +273,10 @@ matchpats pats str =
 
 -- | Calculate the account tree and account balances from a journal's
 -- postings, and return the results for efficient lookup.
-crunchJournal :: Journal -> (Tree AccountName, Map.Map AccountName Account)
-crunchJournal j = (ant,amap)
+journalAccountInfo :: Journal -> (Tree AccountName, Map.Map AccountName Account)
+journalAccountInfo j = (ant, amap)
     where
-      (ant,psof,_,inclbalof) = (groupPostings . journalPostings) j
+      (ant, psof, _, inclbalof) = (groupPostings . journalPostings) j
       amap = Map.fromList [(a, acctinfo a) | a <- flatten ant]
       acctinfo a = Account a (psof a) (inclbalof a)
 
@@ -288,7 +288,7 @@ groupPostings :: [Posting] -> (Tree AccountName,
                              (AccountName -> [Posting]),
                              (AccountName -> MixedAmount),
                              (AccountName -> MixedAmount))
-groupPostings ps = (ant,psof,exclbalof,inclbalof)
+groupPostings ps = (ant, psof, exclbalof, inclbalof)
     where
       anames = sort $ nub $ map paccount ps
       ant = accountNameTreeFrom $ expandAccountNames anames
diff --git a/hledger-lib/Hledger/Data/Ledger.hs b/hledger-lib/Hledger/Data/Ledger.hs
index a58133918..56a69c282 100644
--- a/hledger-lib/Hledger/Data/Ledger.hs
+++ b/hledger-lib/Hledger/Data/Ledger.hs
@@ -84,11 +84,11 @@ makeUncachedLedger :: Bool -> FilePath -> ClockTime -> String -> Journal -> Unca
 makeUncachedLedger costbasis f t s j =
     nullledger{journal=canonicaliseAmounts costbasis j{filepath=f,filereadtime=t,jtext=s}}
 
--- | Filter a ledger's transactions according to the filter specification and generate derived data.
+-- | Filter a ledger's transactions as specified and generate derived data.
 filterAndCacheLedger :: FilterSpec -> UncachedLedger -> Ledger
-filterAndCacheLedger filterspec l@Ledger{journal=j} = l{journal=j',accountnametree=ant,accountmap=amap}
-    where (ant, amap) = crunchJournal j'
-          j' = filterJournalPostings filterspec{depth=Nothing} j
+filterAndCacheLedger filterspec l@Ledger{journal=j} = l{journal=j',accountnametree=t,accountmap=m}
+    where j' = filterJournalPostings filterspec{depth=Nothing} j
+          (t, m) = journalAccountInfo j'
 
 -- | List a ledger's account names.
 ledgerAccountNames :: Ledger -> [AccountName]
diff --git a/hledger-lib/Hledger/Data/Parse.hs b/hledger-lib/Hledger/Data/Parse.hs
index 8f41133a4..eda05f668 100644
--- a/hledger-lib/Hledger/Data/Parse.hs
+++ b/hledger-lib/Hledger/Data/Parse.hs
@@ -208,14 +208,14 @@ expandPath pos fp = liftM mkRelative (expandHome fp)
 -- | Parses a ledger file or timelog file to a "Journal", or gives an
 -- error.  Requires the current (local) time to calculate any unfinished
 -- timelog sessions, we pass it in for repeatability.
-parseLedgerFile :: LocalTime -> FilePath -> ErrorT String IO Journal
-parseLedgerFile t "-" = liftIO getContents >>= parseLedger t "-"
-parseLedgerFile t f   = liftIO (readFile f) >>= parseLedger t f
+parseJournalFile :: LocalTime -> FilePath -> ErrorT String IO Journal
+parseJournalFile t "-" = liftIO getContents >>= parseJournal t "-"
+parseJournalFile t f   = liftIO (readFile f) >>= parseJournal t f
 
--- | Like parseLedgerFile, but parses a string. A file path is still
+-- | Like parseJournalFile, but parses a string. A file path is still
 -- provided to save in the resulting journal.
-parseLedger :: LocalTime -> FilePath -> String -> ErrorT String IO Journal
-parseLedger reftime inname intxt =
+parseJournal :: LocalTime -> FilePath -> String -> ErrorT String IO Journal
+parseJournal reftime inname intxt =
   case runParser ledgerFile emptyCtx inname intxt of
     Right m  -> liftM (journalConvertTimeLog reftime) $ m `ap` return nulljournal
     Left err -> throwError $ show err -- XXX raises an uncaught exception if we have a parsec user error, eg from many ?
@@ -562,7 +562,7 @@ priceamount =
           many spacenonewline
           char '@'
           many spacenonewline
-          a <- someamount
+          a <- someamount -- XXX could parse more prices ad infinitum, shouldn't
           return $ Just a
           ) <|> return Nothing