reorganize the directories under src, and rescue the JavaScript interpreter from deprecated

2026-05-21 17:12:50 -06:00 · 2009-12-13 18:50:29 +00:00
parent d88a865faf
commit f85232947e
189 changed files with 2 additions and 2 deletions
--- a/src/compiler/GF/Speech/SRGS_ABNF.hs
+++ b/src/compiler/GF/Speech/SRGS_ABNF.hs
@@ -0,0 +1,127 @@
+----------------------------------------------------------------------
+-- |
+-- Module      : PrJSRGS_ABNF
+-- Maintainer  : BB
+-- Stability   : (stable)
+-- Portability : (portable)
+--
+-- > CVS $Date: 2005/11/01 20:09:04 $ 
+-- > CVS $Author: bringert $
+-- > CVS $Revision: 1.16 $
+--
+-- This module prints a CFG as a JSGF grammar.
+--
+-- FIXME: remove \/ warn \/ fail if there are int \/ string literal
+-- categories in the grammar
+--
+-- FIXME: convert to UTF-8
+-----------------------------------------------------------------------------
+
+module GF.Speech.SRGS_ABNF (srgsAbnfPrinter, srgsAbnfNonRecursivePrinter) where
+
+import GF.Data.Utilities
+import GF.Infra.Option
+import GF.Speech.CFG
+import GF.Speech.SISR as SISR
+import GF.Speech.SRG
+import GF.Speech.RegExp
+import PGF (PGF, CId)
+
+import Data.Char
+import Data.List
+import Data.Maybe
+import Text.PrettyPrint.HughesPJ
+import Debug.Trace
+
+width :: Int
+width = 75
+
+srgsAbnfPrinter :: Options
+	        -> PGF -> CId -> String
+srgsAbnfPrinter opts pgf cnc = showDoc $ prABNF sisr $ makeNonLeftRecursiveSRG opts pgf cnc
+    where sisr = flag optSISR opts
+
+srgsAbnfNonRecursivePrinter :: Options -> PGF -> CId -> String
+srgsAbnfNonRecursivePrinter opts pgf cnc = showDoc $ prABNF Nothing $ makeNonRecursiveSRG opts pgf cnc
+
+showDoc = renderStyle (style { lineLength = width })
+
+prABNF :: Maybe SISRFormat -> SRG -> Doc
+prABNF sisr srg
+    = header $++$ foldr ($++$) empty (map prRule (srgRules srg))
+    where
+    header = text "#ABNF 1.0 UTF-8;" $$
+             meta "description" ("Speech recognition grammar for " ++ srgName srg) $$
+             meta "generator" "Grammatical Framework" $$
+             language $$ tagFormat $$ mainCat
+    language = maybe empty (\l -> text "language" <+> text l <> char ';') (srgLanguage srg)
+    tagFormat | isJust sisr = text "tag-format" <+> text "<semantics/1.0>" <> char ';'
+              | otherwise = empty
+    mainCat = text "root" <+> prCat (srgStartCat srg) <> char ';'
+    prRule (SRGRule cat alts) = rule (isExternalCat srg cat) cat (map prAlt alts)
+    prAlt (SRGAlt mp n rhs) = sep [initTag, p (prItem sisr n rhs), finalTag]
+      where initTag = tag sisr (profileInitSISR n)
+            finalTag = tag sisr (profileFinalSISR n)
+            p = if isEmpty initTag && isEmpty finalTag then id else parens
+
+prCat :: Cat -> Doc
+prCat c = char '$' <> text c
+
+prItem :: Maybe SISRFormat -> CFTerm -> SRGItem -> Doc
+prItem sisr t = f 0
+  where
+    f _ (REUnion [])  = text "$VOID"
+    f p (REUnion xs) 
+        | not (null es) = brackets (f 0 (REUnion nes))
+        | otherwise = (if p >= 1 then parens else id) (alts (map (f 1) xs))
+      where (es,nes) = partition isEpsilon xs
+    f _ (REConcat []) = text "$NULL"
+    f p (REConcat xs) = (if p >= 3 then parens else id) (fsep (map (f 2) xs))
+    f p (RERepeat x)  = f 3 x <> text "<0->"
+    f _ (RESymbol s)  = prSymbol sisr t s
+
+
+prSymbol :: Maybe SISRFormat -> CFTerm -> SRGSymbol -> Doc
+prSymbol sisr cn (NonTerminal n@(c,_)) = prCat c <+> tag sisr (catSISR cn n)
+prSymbol _ cn (Terminal t) 
+    | all isPunct t = empty  -- removes punctuation
+    | otherwise = text t -- FIXME: quote if there is whitespace or odd chars
+
+tag :: Maybe SISRFormat -> (SISRFormat -> SISRTag) -> Doc
+tag Nothing _ = empty
+tag (Just fmt) t = 
+    case t fmt of
+      [] -> empty
+      -- grr, silly SRGS ABNF does not have an escaping mechanism
+      ts | '{' `elem` x || '}' `elem` x -> text "{!{" <+> text x <+> text "}!}"
+         | otherwise -> text "{" <+> text x <+> text "}"
+         where x = prSISR ts
+
+isPunct :: Char -> Bool
+isPunct c = c `elem` "-_.;.,?!"
+
+comment :: String -> Doc
+comment s = text "//" <+> text s
+
+alts :: [Doc] -> Doc
+alts = fsep . prepunctuate (text "| ")
+
+rule :: Bool -> Cat -> [Doc] -> Doc
+rule pub c xs = p <+> prCat c <+> char '=' <+> nest 2 (alts xs) <+> char ';'
+  where p = if pub then text "public" else empty
+
+meta :: String -> String -> Doc
+meta n v = text "meta" <+> text (show n) <+> text "is" <+> text (show v) <> char ';'
+
+-- Pretty-printing utilities
+
+emptyLine :: Doc
+emptyLine = text ""
+
+prepunctuate :: Doc -> [Doc] -> [Doc]
+prepunctuate _ [] = []
+prepunctuate p (x:xs) = x : map (p <>) xs
+
+($++$) :: Doc -> Doc -> Doc
+x $++$ y = x $$ emptyLine $$ y
+