diff --git a/Ebnf2ps.cabal b/Ebnf2ps.cabal --- a/Ebnf2ps.cabal +++ b/Ebnf2ps.cabal @@ -1,5 +1,5 @@ Name: Ebnf2ps -Version: 1.0.9 +Version: 1.0.10 Synopsis: Peter's Syntax Diagram Drawing Tool Homepage: http://www.informatik.uni-freiburg.de/~thiemann/haskell/ebnf2ps/ License: BSD3 @@ -17,13 +17,14 @@ texts created with other popular document preparation systems. -Extra-source-files: examples/ebnf.BNF examples/gofer.BNF examples/regular.BNF, +Extra-source-files: + examples/ebnf.BNF examples/gofer.BNF examples/regular.BNF, examples/examples.ps, doc/Atom.eps, doc/ExtAtom.eps, doc/Factor.eps, doc/File.eps, doc/Production_unfold.eps, doc/Nonterminal.eps, doc/Production.eps, doc/String.eps, doc/Term.eps, doc/Character.eps, doc/Atom_unfold.eps, doc/RAtom.eps, doc/RAtom_unfold.eps, doc/Export.eps, doc/RExtAtom.eps, doc/RFactor.eps, doc/Regexp.eps, - doc/doc.tex, doc/doc.ps + doc/doc.tex, doc/doc.ps, src/afmpath.h, src/rgbpath.h Executable ebnf2ps Main-is: Ebnf2ps.hs @@ -34,7 +35,24 @@ unix, array, haskell98 Build-tools: happy Cc-options: -DAFMPATH=/usr/share/texmf-texlive/fonts/afm - Other-modules: Parsers, StringMatch, Info, Fonts, IOSupplement, - EbnfLayout, EbnfOutput, PsOutput, Fig31Output, Version, - Color, AbstractSyntax, Lexer, GrammarTransform, GrammarUnfold, - ParseAux, Ebnf2psParser, CommandLine + Other-modules: + AbstractSyntax, + Color, + CommandLine, + Defaults, + Ebnf2psParser, + EbnfLayout, + EbnfOutput, + Fig31Output, + Fonts, + GrammarTransform, + GrammarUnfold, + IOSupplement, + Info, + Lexer, + ParseAux, + Parsers, + PathExpansion, + PsOutput, + StringMatch, + Version diff --git a/examples/examples.ps b/examples/examples.ps new file mode 100644 --- /dev/null +++ b/examples/examples.ps @@ -0,0 +1,36512 @@ +%!PS-Adobe-2.0 +%%Creator: dvips 5.58 Copyright 1986, 1994 Radical Eye Software +%%Title: examples.dvi +%%CreationDate: Sat May 18 16:07:20 1996 +%%Pages: 55 +%%PageOrder: Ascend +%%BoundingBox: 0 0 596 842 +%%EndComments +%DVIPSCommandLine: dvips 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+------------------------------------------------------------------------ +-- © 1998 Peter Thiemann +-- some default settings +-- +module Defaults (afmPathDefault, ebnfInputDefault, rgbPathDefault) +where + +afmPathDefault = [ +#include "afmpath.h" + , "/usr/local/tex/lib/TeXPS/afm"] +ebnfInputDefault = ["."] +rgbPathDefault = [ +#include "rgbpath.h" + , "/usr/X11R6/lib/X11"] diff --git a/src/PathExpansion.hs b/src/PathExpansion.hs new file mode 100644 --- /dev/null +++ b/src/PathExpansion.hs @@ -0,0 +1,195 @@ +{-# LANGUAGE CPP #-} +module PathExpansion (expandPath) +where + +#ifdef __GLASGOW_HASKELL__ +import System.Directory +import System.Environment +import Control.Monad +import System.IO +import System.IO.Error +import System.Posix.User (getUserEntryForName, homeDirectory) +#endif + +expandPath :: [String] -> IO [String] + +#if __GLASGOW_HASKELL__ || __HBC__ + +expandPath [] = return [] +expandPath (path:paths) = do pathSpec1 <- replaceEnv(fst(stringToPathSpec([],path))) + pathSpec2 <- replaceHome(pathSpec1) + rest <- expandPath paths + beginn <- expandDirs(pSTS(rpBrace(replaceColon pathSpec2))) + return(beginn ++ rest) + +-------------- Datenstruktur PathSpec ------------- + +data PathSpec = EmptyPath| + Chars Char | + EnVar String | + Colon | + Tilde String| + Brace [PathSpec]| + Home String + deriving Show + +------------- String in Datentyp PathSpec Parser --------- +stringToPathSpec :: ([PathSpec],String) -> ([PathSpec],[PathSpec]) +stringToPathSpec (x,"") = (x++[EmptyPath],[EmptyPath]) +stringToPathSpec (path,(x:xs)) + |x == '$' = stringToPathSpec (path ++ [EnVar (envName xs)],(envRest xs)) + |x == '{' = (path++[Brace (fst(stringToPathSpec([],xs)))]++snd(stringToPathSpec([],xs)),[EmptyPath]) + |x == '}' = (path++[EmptyPath],fst(stringToPathSpec ([],xs))) + |x == ':' = stringToPathSpec (path ++[Colon],xs) + |x == '~' && nextSign xs '/' = stringToPathSpec (path, "$HOME"++xs) + |x == '~' = stringToPathSpec(path ++ [Home (envName xs)],envRest xs) + |otherwise = stringToPathSpec (path ++ [Chars x],xs) + + +envName :: String -> String +envName "" = "" +envName (x:xs) + |x == '{' = takeWhile (not.(== '}')) xs + |otherwise = takeWhile (not.specialSign) (x:xs) + +envRest :: String -> String +envRest (x:xs) + |x == '{' = tail(dropWhile (not.(== '}')) xs) + |otherwise = dropWhile (not.specialSign) (x:xs) + +specialSign :: Char -> Bool +specialSign x = x == '/' || x == ':' || x == '{' || x == '}' + + +----- PathSpec, der nur aus Chars, in String ---------- + +pSTS :: [[PathSpec]] -> [String] +pSTS [] = [] +pSTS (x:xs) = pathSpecToString x : pSTS xs +pathSpecToString :: [PathSpec] -> String +pathSpecToString [] = "" +pathSpecToString (Chars c : xs) = c:pathSpecToString xs +pathSpecToString (_:xs) = pathSpecToString xs +------------------------------------------------------- + + +-------- Ersetzen des Usernamen ---------- +replaceHome :: [PathSpec] -> IO [PathSpec] +replaceHome [] = return [] +replaceHome ((Home t):xs)= do user <- getUserEntryForName t + replaceHome(fst(stringToPathSpec([],homeDirectory user))++xs) +replaceHome ((Brace t):xs)= do braceIn <- replaceHome t + rest <- replaceHome xs + return(Brace(braceIn):(rest)) +replaceHome (x:xs) = do t <- replaceHome xs + return (x:t) + + +-------- Ersetzen der Umgebungsvariablen -------------- + +replaceEnv :: [PathSpec] -> IO [PathSpec] +replaceEnv [EmptyPath] = return [] +replaceEnv ((EnVar t):xs)= do + name <- getEnv2 t + replaceEnv (fst(stringToPathSpec ([],name))++xs) +replaceEnv ((Brace t):xs) = do + braceIn <- replaceEnv t + rest <- replaceEnv xs + return (Brace (braceIn):(rest)) +replaceEnv (x:xs) = do t <- replaceEnv xs + return (x:t) + +getEnv2 t + |t == "HOME" = catch (getEnv t) (\e -> if isDoesNotExistError e then return ['.'] else ioError e) + |otherwise = catch (getEnv t) (\e -> if isDoesNotExistError e then return [] else ioError e) +------------------------------------------------------- + +---------------- Teilen nach Doppelpunkt -------------- +isColon :: PathSpec -> Bool +isColon Colon = True +isColon _ = False + +replaceColon :: [PathSpec] -> [[PathSpec]] +replaceColon xs = let (l,s) = break (isColon) xs + in l : case s of + [] -> [] + (_:t) -> replaceColon t +------------------------------------------------------- + +------- Ersetze Klammer ------------------------------- + +rpBrace :: [[PathSpec]] -> [[PathSpec]] +rpBrace [] = [] +rpBrace (y:ys) = ((replaceBrace [] y) ++ (rpBrace ys)) + +replaceBrace :: [PathSpec] -> [PathSpec] -> [[PathSpec]] +replaceBrace dummy [] = [dummy] +replaceBrace dummy (Brace t : xs) = [foldr (++) [] (dummy:([a]++[b]))| q <- replaceColon t,a<- replaceBrace [] q, b <- replaceBrace [] xs] +replaceBrace dummy (x:xs) = replaceBrace (dummy ++ [x]) xs +------------------------------------------------------- +------- Subdirectory ---------------------------------- + +expandDirs :: [String] -> IO [String] +expandDirs [] = return [] +expandDirs (path:paths) = + do newpath <- expandOnePath [] path + newpaths <- expandDirs paths + return (newpath++newpaths) + +expandOnePath :: String -> String -> IO [String] +expandOnePath anfang [] = return [anfang] +expandOnePath anfang (x:xs) + |x == '/' && nextSign xs '/' = + do allDirs <- expandAllSubPaths [(anfang ++ [x])] + const <- getConstraints (xs,[]) + --expandDirs (map (++(fst(getConstraints (xs,[])))) [sub|sub <- allDirs, elemSub(reverse(snd(getConstraints (xs,[])))) (reverse sub)]) + expandDirs (map (++ (fst const)) [sub|sub <- allDirs, elemSub(reverse(snd const)) (reverse sub)]) + |otherwise = do expandOnePath (anfang ++ [x]) xs + + +getConstraints :: (String,String) -> IO (String,String) +getConstraints ([],ys) = return ([],ys) +getConstraints (['/'],ys) = return ([],ys) +getConstraints ((x:xs),ys) + |x == '/' && nextSign xs '/' = return ((x:xs),ys) + |otherwise = getConstraints(xs,(ys ++ [x])) + +elemSub :: String -> String -> Bool +elemSub [] _ = True +elemSub _ [] = False +elemSub (x:xs) (y:ys) + |x == y = elemSub xs ys + |otherwise = False + +nextSign :: String -> Char -> Bool +nextSign [] _ = False +nextSign (x:xs) y = x == y + +expandAllSubPaths :: [String] -> IO [String] +expandAllSubPaths [] = return [] +expandAllSubPaths (x:xs) = do dirs <- searchForDirs (checkPath x) + subdirs <- expandAllSubPaths (dirs++xs) + return (x:subdirs) + +searchForDirs :: FilePath -> IO [FilePath] +searchForDirs dir = do all_dir <- getDirectoryContents dir + dir_input <- filterM (specialPath) all_dir + filterM (doesDirectoryExist) (map (dir ++) dir_input) + +specialPath :: FilePath -> IO Bool +specialPath p = return (special p) + where special "." = False + special ".." = False + special _ = True + +checkPath :: FilePath -> FilePath +checkPath path + |last path == '/' = path + |otherwise = path++"/" + +---------------------------------------------------------------------------------- +#else +-- for Hugs 1.4 +expandPath = return + +#endif diff --git a/src/afmpath.h b/src/afmpath.h new file mode 100644 --- /dev/null +++ b/src/afmpath.h @@ -0,0 +1,1 @@ + "/usr/local/tex/Adobe" diff --git a/src/rgbpath.h b/src/rgbpath.h new file mode 100644 --- /dev/null +++ b/src/rgbpath.h @@ -0,0 +1,1 @@ + "/usr/lib/X11"