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synced 2026-05-06 09:42:50 -06:00
changed names of resource-1.3; added a note on homepage on release
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aarne
189
src/PGF/Parsing/FCFG/Active.hs
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189
src/PGF/Parsing/FCFG/Active.hs
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@@ -0,0 +1,189 @@
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----------------------------------------------------------------------
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-- |
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-- Maintainer : Krasimir Angelov
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- MCFG parsing, the active algorithm
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-----------------------------------------------------------------------------
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module PGF.Parsing.FCFG.Active (parse) where
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import GF.Data.Assoc
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import GF.Data.SortedList
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import GF.Data.Utilities
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import qualified GF.Data.MultiMap as MM
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import PGF.CId
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import PGF.Data
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import PGF.Parsing.FCFG.Utilities
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import Control.Monad (guard)
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import qualified Data.List as List
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import qualified Data.Map as Map
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import qualified Data.Set as Set
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import Data.Array
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----------------------------------------------------------------------
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-- * parsing
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makeFinalEdge cat 0 0 = (cat, [EmptyRange])
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makeFinalEdge cat i j = (cat, [makeRange i j])
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-- | the list of categories = possible starting categories
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parse :: String -> ParserInfo -> CId -> [FToken] -> [Tree]
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parse strategy pinfo start toks = nubsort $ filteredForests >>= forest2trees
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where
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inTokens = input toks
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starts = Map.findWithDefault [] start (startupCats pinfo)
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schart = xchart2syntaxchart chart pinfo
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(i,j) = inputBounds inTokens
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finalEdges = [makeFinalEdge cat i j | cat <- starts]
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forests = chart2forests schart (const False) finalEdges
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filteredForests = forests >>= applyProfileToForest
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chart = process strategy pinfo inTokens axioms emptyXChart
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axioms | isBU strategy = literals pinfo inTokens ++ initialBU pinfo inTokens
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| isTD strategy = literals pinfo inTokens ++ initialTD pinfo starts inTokens
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isBU s = s=="b"
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isTD s = s=="t"
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-- used in prediction
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emptyChildren :: RuleId -> ParserInfo -> SyntaxNode RuleId RangeRec
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emptyChildren ruleid pinfo = SNode ruleid (replicate (length rhs) [])
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where
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FRule _ _ rhs _ _ = allRules pinfo ! ruleid
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process :: String -> ParserInfo -> Input FToken -> [(FCat,Item)] -> XChart FCat -> XChart FCat
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process strategy pinfo toks [] chart = chart
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process strategy pinfo toks ((c,item):items) chart = process strategy pinfo toks items $! univRule c item chart
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where
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univRule cat item@(Active found rng lbl ppos node@(SNode ruleid recs)) chart
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| inRange (bounds lin) ppos =
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case lin ! ppos of
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FSymCat r d -> let c = args !! d
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in case recs !! d of
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[] -> case insertXChart chart item c of
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Nothing -> chart
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Just chart -> let items = do item@(Final found' _) <- lookupXChartFinal chart c
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rng <- concatRange rng (found' !! r)
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return (c, Active found rng lbl (ppos+1) (SNode ruleid (updateNth (const found') d recs)))
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++
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do guard (isTD strategy)
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ruleid <- topdownRules pinfo ? c
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return (c, Active [] EmptyRange 0 0 (emptyChildren ruleid pinfo))
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in process strategy pinfo toks items chart
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found' -> let items = do rng <- concatRange rng (found' !! r)
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return (c, Active found rng lbl (ppos+1) node)
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in process strategy pinfo toks items chart
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FSymTok tok -> let items = do t_rng <- inputToken toks ? tok
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rng' <- concatRange rng t_rng
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return (cat, Active found rng' lbl (ppos+1) node)
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in process strategy pinfo toks items chart
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| otherwise =
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if inRange (bounds lins) (lbl+1)
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then univRule cat (Active (rng:found) EmptyRange (lbl+1) 0 node) chart
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else univRule cat (Final (reverse (rng:found)) node) chart
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where
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(FRule _ _ args cat lins) = allRules pinfo ! ruleid
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lin = lins ! lbl
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univRule cat item@(Final found' node) chart =
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case insertXChart chart item cat of
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Nothing -> chart
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Just chart -> let items = do (Active found rng l ppos node@(SNode ruleid _)) <- lookupXChartAct chart cat
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let FRule _ _ args _ lins = allRules pinfo ! ruleid
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FSymCat r d = lins ! l ! ppos
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rng <- concatRange rng (found' !! r)
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return (args !! d, Active found rng l (ppos+1) (updateChildren node d found'))
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++
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do guard (isBU strategy)
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ruleid <- leftcornerCats pinfo ? cat
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let FRule _ _ args _ lins = allRules pinfo ! ruleid
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FSymCat r d = lins ! 0 ! 0
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return (args !! d, Active [] (found' !! r) 0 1 (updateChildren (emptyChildren ruleid pinfo) d found'))
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updateChildren :: SyntaxNode RuleId RangeRec -> Int -> RangeRec -> SyntaxNode RuleId RangeRec
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updateChildren (SNode ruleid recs) i rec = SNode ruleid $! updateNth (const rec) i recs
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in process strategy pinfo toks items chart
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----------------------------------------------------------------------
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-- * XChart
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data Item
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= Active RangeRec
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Range
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{-# UNPACK #-} !FIndex
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{-# UNPACK #-} !FPointPos
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(SyntaxNode RuleId RangeRec)
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| Final RangeRec (SyntaxNode RuleId RangeRec)
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deriving (Eq, Ord)
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data XChart c = XChart !(MM.MultiMap c Item) !(MM.MultiMap c Item)
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emptyXChart :: Ord c => XChart c
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emptyXChart = XChart MM.empty MM.empty
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insertXChart (XChart actives finals) item@(Active _ _ _ _ _) c =
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case MM.insert' c item actives of
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Nothing -> Nothing
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Just actives -> Just (XChart actives finals)
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insertXChart (XChart actives finals) item@(Final _ _) c =
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case MM.insert' c item finals of
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Nothing -> Nothing
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Just finals -> Just (XChart actives finals)
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lookupXChartAct (XChart actives finals) c = actives MM.! c
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lookupXChartFinal (XChart actives finals) c = finals MM.! c
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xchart2syntaxchart :: XChart FCat -> ParserInfo -> SyntaxChart (CId,[Profile]) (FCat,RangeRec)
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xchart2syntaxchart (XChart actives finals) pinfo =
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accumAssoc groupSyntaxNodes $
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[ case node of
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SNode ruleid rrecs -> let FRule fun prof rhs cat _ = allRules pinfo ! ruleid
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in ((cat,found), SNode (fun,prof) (zip rhs rrecs))
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SString s -> ((cat,found), SString s)
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SInt n -> ((cat,found), SInt n)
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SFloat f -> ((cat,found), SFloat f)
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| (cat, Final found node) <- MM.toList finals
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]
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literals :: ParserInfo -> Input FToken -> [(FCat,Item)]
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literals pinfo toks =
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[let (c,node) = lexer t in (c,Final [rng] node) | (t,rngs) <- aAssocs (inputToken toks), rng <- rngs, not (t `elem` grammarToks pinfo)]
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where
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lexer t =
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case reads t of
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[(n,"")] -> (fcatInt, SInt (n::Integer))
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_ -> case reads t of
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[(f,"")] -> (fcatFloat, SFloat (f::Double))
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_ -> (fcatString,SString t)
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----------------------------------------------------------------------
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-- Earley --
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-- called with all starting categories
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initialTD :: ParserInfo -> [FCat] -> Input FToken -> [(FCat,Item)]
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initialTD pinfo starts toks =
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do cat <- starts
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ruleid <- topdownRules pinfo ? cat
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return (cat,Active [] (Range 0 0) 0 0 (emptyChildren ruleid pinfo))
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----------------------------------------------------------------------
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-- Kilbury --
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initialBU :: ParserInfo -> Input FToken -> [(FCat,Item)]
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initialBU pinfo toks =
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do (tok,rngs) <- aAssocs (inputToken toks)
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ruleid <- leftcornerTokens pinfo ? tok
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let FRule _ _ _ cat _ = allRules pinfo ! ruleid
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rng <- rngs
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return (cat,Active [] rng 0 1 (emptyChildren ruleid pinfo))
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++
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do ruleid <- epsilonRules pinfo
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let FRule _ _ _ cat _ = allRules pinfo ! ruleid
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return (cat,Active [] EmptyRange 0 0 (emptyChildren ruleid pinfo))
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187
src/PGF/Parsing/FCFG/Incremental.hs
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187
src/PGF/Parsing/FCFG/Incremental.hs
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@@ -0,0 +1,187 @@
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{-# LANGUAGE BangPatterns #-}
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module PGF.Parsing.FCFG.Incremental
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( ParseState
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, initState
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, nextState
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, getCompletions
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, extractExps
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, parse
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) where
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import Data.Array
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import Data.Array.Base (unsafeAt)
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import Data.List (isPrefixOf, foldl')
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import Data.Maybe (fromMaybe)
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import qualified Data.Map as Map
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import qualified Data.IntMap as IntMap
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import qualified Data.Set as Set
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import Control.Monad
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import GF.Data.Assoc
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import GF.Data.SortedList
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import qualified GF.Data.MultiMap as MM
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import PGF.CId
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import PGF.Data
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import PGF.Parsing.FCFG.Utilities
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import Debug.Trace
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parse :: ParserInfo -> CId -> [FToken] -> [Tree]
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parse pinfo start toks = extractExps (foldl' nextState (initState pinfo start) toks) start
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initState :: ParserInfo -> CId -> ParseState
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initState pinfo start =
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let items = do
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c <- Map.findWithDefault [] start (startupCats pinfo)
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ruleid <- topdownRules pinfo ? c
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let (FRule fn _ args cat lins) = allRules pinfo ! ruleid
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lbl <- indices lins
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return (Active 0 lbl 0 ruleid args cat)
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forest = IntMap.fromListWith Set.union [(cat, Set.singleton (Passive ruleid args)) | (ruleid, FRule _ _ args cat _) <- assocs (allRules pinfo)]
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max_fid = case IntMap.maxViewWithKey forest of
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Just ((fid,_), _) -> fid+1
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Nothing -> 0
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in State pinfo
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(Chart MM.empty [] Map.empty forest max_fid 0)
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(Set.fromList items)
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-- | From the current state and the next token
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-- 'nextState' computes a new state where the token
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-- is consumed and the current position shifted by one.
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nextState :: ParseState -> String -> ParseState
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nextState (State pinfo chart items) t =
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let (items1,chart1) = process add (allRules pinfo) (Set.toList items) (Set.empty,chart)
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chart2 = chart1{ active =MM.empty
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, actives=active chart1 : actives chart1
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, passive=Map.empty
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, offset =offset chart1+1
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}
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in State pinfo chart2 items1
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where
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add tok item set
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| tok == t = Set.insert item set
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| otherwise = set
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-- | If the next token is not known but only its prefix (possible empty prefix)
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-- then the 'getCompletions' function can be used to calculate the possible
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-- next words and the consequent states. This is used for word completions in
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-- the GF interpreter.
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getCompletions :: ParseState -> String -> Map.Map String ParseState
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getCompletions (State pinfo chart items) w =
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let (map',chart1) = process add (allRules pinfo) (Set.toList items) (MM.empty,chart)
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chart2 = chart1{ active =MM.empty
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, actives=active chart1 : actives chart1
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, passive=Map.empty
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, offset =offset chart1+1
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}
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in fmap (State pinfo chart2) map'
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where
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add tok item map
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| isPrefixOf w tok = fromMaybe map (MM.insert' tok item map)
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| otherwise = map
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extractExps :: ParseState -> CId -> [Tree]
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extractExps (State pinfo chart items) start = exps
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where
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(_,st) = process (\_ _ -> id) (allRules pinfo) (Set.toList items) ((),chart)
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exps = nubsort $ do
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c <- Map.findWithDefault [] start (startupCats pinfo)
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ruleid <- topdownRules pinfo ? c
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let (FRule fn _ args cat lins) = allRules pinfo ! ruleid
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lbl <- indices lins
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fid <- Map.lookup (PK c lbl 0) (passive st)
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go Set.empty fid
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go rec fid
|
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| Set.member fid rec = mzero
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| otherwise = do set <- IntMap.lookup fid (forest st)
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Passive ruleid args <- Set.toList set
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let (FRule fn _ _ cat lins) = allRules pinfo ! ruleid
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if fn == wildCId
|
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then go (Set.insert fid rec) (head args)
|
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else do args <- mapM (go (Set.insert fid rec)) args
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return (Fun fn args)
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process fn !rules [] acc_chart = acc_chart
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process fn !rules (item:items) acc_chart = univRule item acc_chart
|
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where
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univRule (Active j lbl ppos ruleid args fid0) acc_chart@(acc,chart)
|
||||
| inRange (bounds lin) ppos =
|
||||
case unsafeAt lin ppos of
|
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FSymCat r d -> let !fid = args !! d
|
||||
in case MM.insert' (AK fid r) item (active chart) of
|
||||
Nothing -> process fn rules items $ acc_chart
|
||||
Just actCat -> (case Map.lookup (PK fid r k) (passive chart) of
|
||||
Nothing -> id
|
||||
Just id -> process fn rules [Active j lbl (ppos+1) ruleid (updateAt d id args) fid0]) $
|
||||
(case IntMap.lookup fid (forest chart) of
|
||||
Nothing -> id
|
||||
Just set -> process fn rules (Set.fold (\(Passive ruleid args) -> (:) (Active k r 0 ruleid args fid)) [] set)) $
|
||||
process fn rules items $
|
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(acc,chart{active=actCat})
|
||||
FSymTok tok -> process fn rules items $
|
||||
(fn tok (Active j lbl (ppos+1) ruleid args fid0) acc,chart)
|
||||
| otherwise = case Map.lookup (PK fid0 lbl j) (passive chart) of
|
||||
Nothing -> let fid = nextId chart
|
||||
in process fn rules [Active j' lbl (ppos+1) ruleid (updateAt d fid args) fidc
|
||||
| Active j' lbl ppos ruleid args fidc <- ((active chart:actives chart) !! (k-j)) MM.! (AK fid0 lbl),
|
||||
let FSymCat _ d = unsafeAt (rhs ruleid lbl) ppos] $
|
||||
process fn rules items $
|
||||
(acc,chart{passive=Map.insert (PK fid0 lbl j) fid (passive chart)
|
||||
,forest =IntMap.insert fid (Set.singleton (Passive ruleid args)) (forest chart)
|
||||
,nextId =nextId chart+1
|
||||
})
|
||||
Just id -> process fn rules items $
|
||||
(acc,chart{forest = IntMap.insertWith Set.union id (Set.singleton (Passive ruleid args)) (forest chart)})
|
||||
where
|
||||
!lin = rhs ruleid lbl
|
||||
!k = offset chart
|
||||
|
||||
rhs ruleid lbl = unsafeAt lins lbl
|
||||
where
|
||||
(FRule _ _ _ cat lins) = unsafeAt rules ruleid
|
||||
|
||||
updateAt :: Int -> a -> [a] -> [a]
|
||||
updateAt nr x xs = [if i == nr then x else y | (i,y) <- zip [0..] xs]
|
||||
|
||||
|
||||
data Active
|
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= Active {-# UNPACK #-} !Int
|
||||
{-# UNPACK #-} !FIndex
|
||||
{-# UNPACK #-} !FPointPos
|
||||
{-# UNPACK #-} !RuleId
|
||||
[FCat]
|
||||
{-# UNPACK #-} !FCat
|
||||
deriving (Eq,Show,Ord)
|
||||
data Passive
|
||||
= Passive {-# UNPACK #-} !RuleId
|
||||
[FCat]
|
||||
deriving (Eq,Ord,Show)
|
||||
|
||||
data ActiveKey
|
||||
= AK {-# UNPACK #-} !FCat
|
||||
{-# UNPACK #-} !FIndex
|
||||
deriving (Eq,Ord,Show)
|
||||
data PassiveKey
|
||||
= PK {-# UNPACK #-} !FCat
|
||||
{-# UNPACK #-} !FIndex
|
||||
{-# UNPACK #-} !Int
|
||||
deriving (Eq,Ord,Show)
|
||||
|
||||
|
||||
-- | An abstract data type whose values represent
|
||||
-- the current state in an incremental parser.
|
||||
data ParseState = State ParserInfo Chart (Set.Set Active)
|
||||
|
||||
data Chart
|
||||
= Chart
|
||||
{ active :: MM.MultiMap ActiveKey Active
|
||||
, actives :: [MM.MultiMap ActiveKey Active]
|
||||
, passive :: Map.Map PassiveKey FCat
|
||||
, forest :: IntMap.IntMap (Set.Set Passive)
|
||||
, nextId :: {-# UNPACK #-} !FCat
|
||||
, offset :: {-# UNPACK #-} !Int
|
||||
}
|
||||
187
src/PGF/Parsing/FCFG/Utilities.hs
Normal file
187
src/PGF/Parsing/FCFG/Utilities.hs
Normal file
@@ -0,0 +1,187 @@
|
||||
----------------------------------------------------------------------
|
||||
-- |
|
||||
-- Maintainer : PL
|
||||
-- Stability : (stable)
|
||||
-- Portability : (portable)
|
||||
--
|
||||
-- > CVS $Date: 2005/05/13 12:40:19 $
|
||||
-- > CVS $Author: peb $
|
||||
-- > CVS $Revision: 1.6 $
|
||||
--
|
||||
-- Basic type declarations and functions for grammar formalisms
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
|
||||
module PGF.Parsing.FCFG.Utilities where
|
||||
|
||||
import Control.Monad
|
||||
import Data.Array
|
||||
import Data.List (groupBy)
|
||||
|
||||
import PGF.CId
|
||||
import PGF.Data
|
||||
import GF.Data.Assoc
|
||||
import GF.Data.Utilities (sameLength, foldMerge, splitBy)
|
||||
|
||||
|
||||
------------------------------------------------------------
|
||||
-- ranges as single pairs
|
||||
|
||||
type RangeRec = [Range]
|
||||
|
||||
data Range = Range {-# UNPACK #-} !Int {-# UNPACK #-} !Int
|
||||
| EmptyRange
|
||||
deriving (Eq, Ord)
|
||||
|
||||
makeRange :: Int -> Int -> Range
|
||||
makeRange = Range
|
||||
|
||||
concatRange :: Range -> Range -> [Range]
|
||||
concatRange EmptyRange rng = return rng
|
||||
concatRange rng EmptyRange = return rng
|
||||
concatRange (Range i j) (Range j' k) = [Range i k | j==j']
|
||||
|
||||
minRange :: Range -> Int
|
||||
minRange (Range i j) = i
|
||||
|
||||
maxRange :: Range -> Int
|
||||
maxRange (Range i j) = j
|
||||
|
||||
|
||||
------------------------------------------------------------
|
||||
-- * representaions of input tokens
|
||||
|
||||
data Input t = MkInput { inputBounds :: (Int, Int),
|
||||
inputToken :: Assoc t [Range]
|
||||
}
|
||||
|
||||
input :: Ord t => [t] -> Input t
|
||||
input toks = MkInput inBounds inToken
|
||||
where
|
||||
inBounds = (0, length toks)
|
||||
inToken = accumAssoc id [ (tok, makeRange i j) | (i,j,tok) <- zip3 [0..] [1..] toks ]
|
||||
|
||||
inputMany :: Ord t => [[t]] -> Input t
|
||||
inputMany toks = MkInput inBounds inToken
|
||||
where
|
||||
inBounds = (0, length toks)
|
||||
inToken = accumAssoc id [ (tok, makeRange i j) | (i,j,ts) <- zip3 [0..] [1..] toks, tok <- ts ]
|
||||
|
||||
|
||||
------------------------------------------------------------
|
||||
-- * representations of syntactical analyses
|
||||
|
||||
-- ** charts as finite maps over edges
|
||||
|
||||
-- | The values of the chart, a list of key-daughters pairs,
|
||||
-- has unique keys. In essence, it is a map from 'n' to daughters.
|
||||
-- The daughters should be a set (not necessarily sorted) of rhs's.
|
||||
type SyntaxChart n e = Assoc e [SyntaxNode n [e]]
|
||||
|
||||
data SyntaxNode n e = SMeta
|
||||
| SNode n [e]
|
||||
| SString String
|
||||
| SInt Integer
|
||||
| SFloat Double
|
||||
deriving (Eq,Ord)
|
||||
|
||||
groupSyntaxNodes :: Ord n => [SyntaxNode n e] -> [SyntaxNode n [e]]
|
||||
groupSyntaxNodes [] = []
|
||||
groupSyntaxNodes (SNode n0 es0:xs) = (SNode n0 (es0:ess)) : groupSyntaxNodes xs'
|
||||
where
|
||||
(ess,xs') = span xs
|
||||
|
||||
span [] = ([],[])
|
||||
span xs@(SNode n es:xs')
|
||||
| n0 == n = let (ess,xs) = span xs' in (es:ess,xs)
|
||||
| otherwise = ([],xs)
|
||||
groupSyntaxNodes (SString s:xs) = (SString s) : groupSyntaxNodes xs
|
||||
groupSyntaxNodes (SInt n:xs) = (SInt n) : groupSyntaxNodes xs
|
||||
groupSyntaxNodes (SFloat f:xs) = (SFloat f) : groupSyntaxNodes xs
|
||||
|
||||
-- ** syntax forests
|
||||
|
||||
data SyntaxForest n = FMeta
|
||||
| FNode n [[SyntaxForest n]]
|
||||
-- ^ The outer list should be a set (not necessarily sorted)
|
||||
-- of possible alternatives. Ie. the outer list
|
||||
-- is a disjunctive node, and the inner lists
|
||||
-- are (conjunctive) concatenative nodes
|
||||
| FString String
|
||||
| FInt Integer
|
||||
| FFloat Double
|
||||
deriving (Eq, Ord, Show)
|
||||
|
||||
instance Functor SyntaxForest where
|
||||
fmap f (FNode n forests) = FNode (f n) $ map (map (fmap f)) forests
|
||||
fmap _ (FString s) = FString s
|
||||
fmap _ (FInt n) = FInt n
|
||||
fmap _ (FFloat f) = FFloat f
|
||||
fmap _ (FMeta) = FMeta
|
||||
|
||||
forestName :: SyntaxForest n -> Maybe n
|
||||
forestName (FNode n _) = Just n
|
||||
forestName _ = Nothing
|
||||
|
||||
unifyManyForests :: (Monad m, Eq n) => [SyntaxForest n] -> m (SyntaxForest n)
|
||||
unifyManyForests = foldM unifyForests FMeta
|
||||
|
||||
-- | two forests can be unified, if either is 'FMeta', or both have the same parent,
|
||||
-- and all children can be unified
|
||||
unifyForests :: (Monad m, Eq n) => SyntaxForest n -> SyntaxForest n -> m (SyntaxForest n)
|
||||
unifyForests FMeta forest = return forest
|
||||
unifyForests forest FMeta = return forest
|
||||
unifyForests (FNode name1 children1) (FNode name2 children2)
|
||||
| name1 == name2 && not (null children) = return $ FNode name1 children
|
||||
where children = [ forests | forests1 <- children1, forests2 <- children2,
|
||||
sameLength forests1 forests2,
|
||||
forests <- zipWithM unifyForests forests1 forests2 ]
|
||||
unifyForests (FString s1) (FString s2)
|
||||
| s1 == s2 = return $ FString s1
|
||||
unifyForests (FInt n1) (FInt n2)
|
||||
| n1 == n2 = return $ FInt n1
|
||||
unifyForests (FFloat f1) (FFloat f2)
|
||||
| f1 == f2 = return $ FFloat f1
|
||||
unifyForests _ _ = fail "forest unification failure"
|
||||
|
||||
|
||||
-- ** conversions between representations
|
||||
|
||||
chart2forests :: (Ord n, Ord e) =>
|
||||
SyntaxChart n e -- ^ The complete chart
|
||||
-> (e -> Bool) -- ^ When is an edge 'FMeta'?
|
||||
-> [e] -- ^ The starting edges
|
||||
-> [SyntaxForest n] -- ^ The result has unique keys, ie. all 'n' are joined together.
|
||||
-- In essence, the result is a map from 'n' to forest daughters
|
||||
chart2forests chart isMeta = concatMap (edge2forests [])
|
||||
where edge2forests edges edge
|
||||
| isMeta edge = [FMeta]
|
||||
| edge `elem` edges = []
|
||||
| otherwise = map (item2forest (edge:edges)) $ chart ? edge
|
||||
item2forest edges (SMeta) = FMeta
|
||||
item2forest edges (SNode name children) =
|
||||
FNode name $ children >>= mapM (edge2forests edges)
|
||||
item2forest edges (SString s) = FString s
|
||||
item2forest edges (SInt n) = FInt n
|
||||
item2forest edges (SFloat f) = FFloat f
|
||||
|
||||
|
||||
applyProfileToForest :: SyntaxForest (CId,[Profile]) -> [SyntaxForest CId]
|
||||
applyProfileToForest (FNode (fun,profiles) children)
|
||||
| fun == wildCId = concat chForests
|
||||
| otherwise = [ FNode fun chForests | not (null chForests) ]
|
||||
where chForests = concat [ mapM (unifyManyForests . map (forests !!)) profiles |
|
||||
forests0 <- children,
|
||||
forests <- mapM applyProfileToForest forests0 ]
|
||||
applyProfileToForest (FString s) = [FString s]
|
||||
applyProfileToForest (FInt n) = [FInt n]
|
||||
applyProfileToForest (FFloat f) = [FFloat f]
|
||||
applyProfileToForest (FMeta) = [FMeta]
|
||||
|
||||
|
||||
forest2trees :: SyntaxForest CId -> [Tree]
|
||||
forest2trees (FNode n forests) = map (Fun n) $ forests >>= mapM forest2trees
|
||||
forest2trees (FString s) = [Lit (LStr s)]
|
||||
forest2trees (FInt n) = [Lit (LInt n)]
|
||||
forest2trees (FFloat f) = [Lit (LFlt f)]
|
||||
forest2trees (FMeta) = [Meta 0]
|
||||
Reference in New Issue
Block a user