Implement TSV internally, remove the "csv" package dependency.

[match/match.git] / program / Main.hs

diff --git a/program/Main.hs b/program/Main.hs
index 4487508..bdc41a2 100644 (file)
--- a/program/Main.hs
+++ b/program/Main.hs
@@ -5,28 +5,15 @@ import System.IO
 import Data.Array.IArray
 import Data.Array.Unboxed
 import ArrayStuff
-import Text.CSV
+import TSV
 
 -- Command-line interface with simple tab-separated input/output formats.
 -- ./match <example.in
 
--- pretty silly but it does the job
-swapTabCommaIn s = map (\c -> if c == '\t' then ',' else if c == ',' then '\t' else c) s
-removeQuotes s = filter (\c -> not (c == '"')) s
-
--- Some versions of Text.CSV do not use or accept a trailing newline; compensate for that.
-removeTrailingNewline s = if not (null s) && last s == '\n' then init s else s
-addTrailingNewline s = if not (null s) && last s /= '\n' then s ++ ['\n'] else s
-
-parseTSV fname str = case parseCSV fname (swapTabCommaIn $ removeTrailingNewline str) of
-       Left pe -> Left pe
-       Right ll -> Right $ map (map swapTabCommaIn) ll
-printTSV ll = addTrailingNewline $ removeQuotes $ swapTabCommaIn $ printCSV $ map (map swapTabCommaIn) ll
-
 main = do
        incsv <- hGetContents stdin
        -- handle errors another day, or let the platform do it
-       let Right inll = parseTSV "standard input" incsv
+       let inll = parseTSV incsv
        let loadList = head inll
        let numRvrs = length loadList
        let loadA = listArray (0, numRvrs-1) (map read loadList)
@@ -37,4 +24,4 @@ main = do
        let prefA = funcArray ((0,0), (numRvrs-1,numProps-1)) (\(i,j) -> read (pxarr ! (j, i)))
        let theInst = PMInstance numRvrs numProps loadA prefA
        let PMatching theMatching = doMatching pmDefaults theInst
-       hPutStr stdout $ printTSV $ map (\(i, j) -> map show [i, j]) theMatching
+       hPutStr stdout $ formatTSV $ map (\(i, j) -> map show [i, j]) theMatching