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authorkrasimir <krasimir@chalmers.se>2009-12-13 18:50:29 +0000
committerkrasimir <krasimir@chalmers.se>2009-12-13 18:50:29 +0000
commitf85232947e74ee7ef8c7b0ad2338212e7e68f1be (patch)
tree667b886a5e3a4b026a63d4e3597f32497d824761 /src/GF/Speech/SRGS_ABNF.hs
parentd88a865faff59c98fc91556ff8700b10ee5f2df8 (diff)
reorganize the directories under src, and rescue the JavaScript interpreter from deprecated
Diffstat (limited to 'src/GF/Speech/SRGS_ABNF.hs')
-rw-r--r--src/GF/Speech/SRGS_ABNF.hs127
1 files changed, 0 insertions, 127 deletions
diff --git a/src/GF/Speech/SRGS_ABNF.hs b/src/GF/Speech/SRGS_ABNF.hs
deleted file mode 100644
index 2df1316a8..000000000
--- a/src/GF/Speech/SRGS_ABNF.hs
+++ /dev/null
@@ -1,127 +0,0 @@
-----------------------------------------------------------------------
--- |
--- 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
-