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"Committed_by_peb"

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peb
2005-02-09 11:46:54 +00:00
parent 4fd0c636f8
commit a0d4129863
55 changed files with 485 additions and 339 deletions
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16
src/GF/CF/PrLBNF.hs
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@@ -9,7 +9,9 @@
-- > CVS $Author $
-- > CVS $Revision $
--
-- (Description of the module)
-- Printing CF grammars generated from GF as LBNF grammar for BNFC.
-- AR 26/1/2000 -- 9/6/2003 (PPrCF) -- 8/11/2003 -- 27/9/2004.
-- With primitive error messaging, by rules and rule tails commented out
-----------------------------------------------------------------------------
module PrLBNF (prLBNF,prBNF) where
@@ -29,10 +31,6 @@ import Modules
import Char
import List (nub)
-- Printing CF grammars generated from GF as LBNF grammar for BNFC.
-- AR 26/1/2000 -- 9/6/2003 (PPrCF) -- 8/11/2003 -- 27/9/2004
-- With primitive error messaging, by rules and rule tails commented out
prLBNF :: Bool -> StateGrammar -> String
prLBNF new gr = unlines $ pragmas ++ (map (prCFRule cs) rules)
where
@@ -42,7 +40,7 @@ prLBNF new gr = unlines $ pragmas ++ (map (prCFRule cs) rules)
then mkLBNF (stateGrammarST gr) $ rulesOfCF cf
else ([],rulesOfCF cf) -- "normal" behaviour
-- a hack to hide the LBNF details
-- | a hack to hide the LBNF details
prBNF :: Bool -> StateGrammar -> String
prBNF b = unlines . (map (unwords . unLBNF . drop 1 . words)) . lines . prLBNF b
where
@@ -52,7 +50,7 @@ prBNF b = unlines . (map (unwords . unLBNF . drop 1 . words)) . lines . prLBNF b
c:ts -> c : unLBNF ts
_ -> r
--- awful low level code without abstraction over label names etc
--- | awful low level code without abstraction over label names etc
mkLBNF :: CanonGrammar -> [CFRule] -> ([String],[CFRule])
mkLBNF gr rules = (coercions, nub $ concatMap mkRule rules) where
coercions = ["coercions" +++ prt_ c +++ show n +++ ";" |
@@ -129,7 +127,7 @@ prLab i = case i of
L (IC "_") -> "" ---
_ -> let x = prt i in "_" ++ x ++ if isDigit (last x) then "_" else ""
-- just comment out the rest if you cannot interpret the function name in LBNF
-- | just comment out the rest if you cannot interpret the function name in LBNF
-- two versions, depending on whether in the beginning of a rule or elsewhere;
-- in the latter case, error just terminates the rule
prErr :: Bool -> String -> String
@@ -138,7 +136,7 @@ prErr b s = (if b then "" else " ;") +++ "---" +++ s
prCFCat :: Bool -> CFCat -> String
prCFCat b (CFCat ((CIQ _ c),l)) = prId b c ++ prLab l ----
-- if a category does not have a production of its own, we replace it by Ident
-- | if a category does not have a production of its own, we replace it by Ident
prCFItem cs (CFNonterm c) = if elem (catIdPlus c) cs then prCFCat False c else "Ident"
prCFItem _ (CFTerm a) = prRegExp a