module ADP.Multi.Rewriting.Explicit (
constructSubwords1,
constructSubwords2
) where
import Control.Exception
import qualified Data.Map as Map
import Data.Maybe
import ADP.Debug
import ADP.Multi.Parser
import ADP.Multi.Rewriting
import ADP.Multi.Rewriting.Model
import ADP.Multi.Rewriting.YieldSize
import ADP.Multi.Rewriting.RangesHelper
constructSubwords1 :: SubwordConstructionAlgorithm Dim1
constructSubwords1 _ _ b | trace ("constructSubwords1 " ++ show b) False = undefined
constructSubwords1 f infos [i,j] =
assert (i <= j) $
let yieldSizeMap = buildYieldSizeMap infos
symbolIDs = Map.keys yieldSizeMap
rewritten = f symbolIDs
parserCount = length infos
remainingParsers = [parserCount,parserCount1..1] `zip` infos
rangeDesc = [(i,j,rewritten)]
in trace ("f " ++ show symbolIDs ++ " = " ++ show rewritten) $
assert (length rewritten == Map.size yieldSizeMap && all (`elem` rewritten) symbolIDs) $
constructSubwordsRec yieldSizeMap remainingParsers rangeDesc
constructSubwords2 :: SubwordConstructionAlgorithm Dim2
constructSubwords2 _ _ b | trace ("constructSubwords2 " ++ show b) False = undefined
constructSubwords2 f infos [i,j,k,l] =
assert (i <= j && j <= k && k <= l) $
let yieldSizeMap = buildYieldSizeMap infos
symbolIDs = Map.keys yieldSizeMap
(left,right) = f symbolIDs
parserCount = length infos
remainingParsers = [parserCount,parserCount1..1] `zip` infos
rangeDescs = [(i,j,left),(k,l,right)]
in trace ("f " ++ show symbolIDs ++ " = (" ++ show left ++ "," ++ show right ++ ")") $
assert (length left + length right == Map.size yieldSizeMap &&
all (`elem` (left ++ right)) symbolIDs &&
not (null left) && not (null right)) $
constructSubwordsRec yieldSizeMap remainingParsers rangeDescs
constructSubwordsRec :: YieldSizeMap -> [(Int,ParserInfo)] -> [RangeDesc] -> [SubwordTree]
constructSubwordsRec a b c | trace ("constructSubwordsRec " ++ show a ++ " " ++ show b ++ " " ++ show c) False = undefined
constructSubwordsRec _ [] _ = []
constructSubwordsRec yieldSizeMap ((current,ParserInfo1 {}):rest) rangeDescs =
let symbolPos = findSymbol1 current rangeDescs
subwords = calcSubwords1 yieldSizeMap symbolPos
in trace ("calc subwords for dim1") $
trace ("subwords: " ++ show subwords) $
[ SubwordTree [i,j] restTrees |
(i,j) <- subwords,
let newDescs = constructNewRangeDescs1 rangeDescs symbolPos (i,j),
let restTrees = constructSubwordsRec yieldSizeMap rest newDescs
]
constructSubwordsRec yieldSizeMap ((current,ParserInfo2 {}):rest) rangeDescs =
let symbolPositions = findSymbol2 current rangeDescs
subwords = calcSubwords2 yieldSizeMap symbolPositions
in trace ("calc subwords for dim2") $
trace ("subwords: " ++ show subwords) $
[ SubwordTree [i,j,k,l] restTrees |
(i,j,k,l) <- subwords,
let newDescs = constructNewRangeDescs2 rangeDescs symbolPositions (i,j,k,l),
let restTrees = constructSubwordsRec yieldSizeMap rest newDescs
]
calcSubwords2 :: YieldSizeMap -> (SymbolPos,SymbolPos) -> [Subword2]
calcSubwords2 a b | trace ("calcSubwords2 " ++ show a ++ " " ++ show b) False = undefined
calcSubwords2 yieldSizeMap (left@((i,j,r),sym1Idx),right@((m,n,r'),sym2Idx))
| r == r' = calcSubwords2Dependent yieldSizeMap (i,j,r) sym1Idx sym2Idx
| length r == 1 && length r' == 1 = [(i,j,m,n)]
| length r == 1 = [ (i,j,k',l') |
(k',l') <- calcSubwords1 yieldSizeMap right
]
| length r' == 1 = [ (i',j',m,n) |
(i',j') <- calcSubwords1 yieldSizeMap left
]
| otherwise = [ (i',j',k',l') |
(i',j') <- calcSubwords1 yieldSizeMap left
, (k',l') <- calcSubwords1 yieldSizeMap right
]
calcSubwords1 :: YieldSizeMap -> SymbolPos -> [Subword1]
calcSubwords1 _ b | trace ("calcSubwords1 " ++ show b) False = undefined
calcSubwords1 yieldSizeMap pos@((i,j,r),symIdx)
| symIdx == 0 =
[ (i,l) |
Just (minY',minYRight') <- [adjustMinYield (i,j) (minY,maxY) (minYRight,maxYRight)]
, l <- [i+minY'..jminYRight']
]
| symIdx == length r 1 =
[ (k,j) |
Just (minYLeft',minY') <- [adjustMinYield (i,j) (minYLeft,maxYLeft) (minY,maxY)]
, k <- [i+minYLeft'..jminY']
]
| otherwise =
[ (k,l) |
k <- [i+minYLeft..jminYminYRight]
, l <- [k+minY..jminYRight]
]
where (minY,maxY) = yieldSizeOf yieldSizeMap pos
(minYLeft,maxYLeft) = combinedYieldSizeLeftOf yieldSizeMap pos
(minYRight,maxYRight) = combinedYieldSizeRightOf yieldSizeMap pos
adjustMinYield :: Subword1 -> YieldSize -> YieldSize -> Maybe (Int,Int)
adjustMinYield (i,j) (minl,maxl) (minr,maxr) =
let len = ji
adjust oldMinY maxY = let x = maybe oldMinY (\m -> len m) maxY
in max x oldMinY
minrAdj = adjust minr maxl
minlAdj = adjust minl maxr
in do
minlRes <- maybe (Just minlAdj) (\m -> if minlAdj > m then Nothing else Just minlAdj) maxl
minrRes <- maybe (Just minrAdj) (\m -> if minrAdj > m then Nothing else Just minrAdj) maxr
Just (minlRes,minrRes)
calcSubwords2Dependent :: YieldSizeMap -> RangeDesc -> Int -> Int -> [Subword2]
calcSubwords2Dependent _ b c d | trace ("calcSubwords2Dependent " ++ show b ++ " " ++ show c ++ " " ++ show d) False = undefined
calcSubwords2Dependent yieldSizeMap (i,j,r) sym1Idx sym2Idx =
let sym1Idx' = if sym1Idx < sym2Idx then sym1Idx else sym2Idx
sym2Idx' = if sym1Idx < sym2Idx then sym2Idx else sym1Idx
subs = doCalcSubwords2Dependent yieldSizeMap (i,j,r) sym1Idx' sym2Idx'
in if sym1Idx < sym2Idx then subs
else [ (k,l,m,n) | (m,n,k,l) <- subs ]
doCalcSubwords2Dependent :: YieldSizeMap -> RangeDesc -> Int -> Int -> [Subword2]
doCalcSubwords2Dependent yieldSizeMap desc@(i,j,r) sym1Idx sym2Idx =
assert (sym1Idx < sym2Idx) $
trace ("min yields: " ++ show minY1 ++ " " ++ show minY2 ++ " " ++ show minYLeft1 ++ " " ++
show minYLeft2 ++ " " ++ show minYRight1 ++ " " ++ show minYRight2 ++ " " ++ show minYBetween) $
trace ("max yields: " ++ show maxY1 ++ " " ++ show maxY2 ++ " " ++ show maxYLeft1 ++ " " ++
show maxYLeft2 ++ " " ++ show maxYRight1 ++ " " ++ show maxYRight2 ++ " " ++ show maxYBetween) $
result where
(minY1,maxY1) = yieldSizeOf yieldSizeMap (desc,sym1Idx)
(minY2,maxY2) = yieldSizeOf yieldSizeMap (desc,sym2Idx)
(minYLeft1,maxYLeft1) = combinedYieldSizeLeftOf yieldSizeMap (desc,sym1Idx)
(minYLeft2,maxYLeft2) = combinedYieldSizeLeftOf yieldSizeMap (desc,sym2Idx)
(minYRight1,maxYRight1) = combinedYieldSizeRightOf yieldSizeMap (desc,sym1Idx)
(minYRight2,maxYRight2) = combinedYieldSizeRightOf yieldSizeMap (desc,sym2Idx)
minYBetween = minYRight1 minYRight2 minY2
maxYBetween = if isNothing maxYRight1
then Nothing
else Just $ fromJust maxYRight1 fromJust maxYRight2 fromJust maxY2
neighbors = sym1Idx + 1 == sym2Idx
result | sym1Idx == 0 && sym2Idx == length r 1 && neighbors =
[ (i,l,l,j) |
l <- [i+minY1..jminY2]
]
| sym1Idx == 0 && sym2Idx == length r 1 =
[ (i,l,m,j) |
l <- [i+minY1..jminYRight1]
, m <- [l+minYBetween..jminY2]
]
| sym1Idx == 0 && neighbors =
[ (i,l,l,n) |
l <- [i+minY1..jminYRight1]
, n <- [l+minY2..jminYRight2]
]
| sym1Idx == 0 =
[ (i,l,m,n) |
l <- [i+minY1..jminYRight1]
, m <- [l+minYBetween..jminY2minYRight2]
, n <- [m+minY2..jminYRight2]
]
| sym2Idx == length r 1 && neighbors =
[ (k,m,m,j) |
m <- [i+minYLeft2..jminY2]
, k <- [i+minYLeft1..mminY1]
]
| sym2Idx == length r 1 =
[ (k,l,m,j) |
m <- [i+minYLeft2..jminY2]
, l <- [i+minY1+minYLeft1..mminYBetween]
, k <- [i+minYLeft1..lminY1]
]
| sym1Idx > 0 && sym2Idx < length r 1 && neighbors =
[ (k,l,l,n) |
k <- [i+minYLeft1..jminY1minYRight1]
, l <- [k+minY1..jminYRight1]
, n <- [l+minY2..jminYRight2]
]
| sym1Idx > 0 && sym2Idx < length r 1 =
[ (k,l,m,n) |
k <- [i+minYLeft1..jminY1minYRight1]
, l <- [k+minY1..jminYRight1]
, m <- [l+minYBetween..jminY2minYRight2]
, n <- [m+minY2..jminYRight2]
]
| otherwise = error "invalid conditions, e.g. sym1Idx == sym2Idx == 0"