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ebnf printer: print external cats first.

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This commit is contained in:
bjorn
2008-09-26 09:58:57 +00:00
parent d54ba6f112
commit 9010afef50
1 changed files with 4 additions and 3 deletions
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7
src/GF/Speech/SRG.hs
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@@ -140,8 +140,8 @@ cfRulesToSRGRule rs@(r:_) = SRGRule (lhsCat r) rhs
mkSRGSymbols i (NonTerminal c:ss) = NonTerminal (c,i) : mkSRGSymbols (i+1) ss
mkSRGSymbols i (Terminal t:ss) = Terminal t : mkSRGSymbols i ss
allSRGCats :: SRG -> [String]
allSRGCats SRG { srgRules = rs } = [c | SRGRule c _ <- rs]
srgLHSCat :: SRGRule -> Cat
srgLHSCat (SRGRule c _) = c
isExternalCat :: SRG -> Cat -> Bool
isExternalCat srg c = c `Set.member` srgExternalCats srg
@@ -175,8 +175,9 @@ ungroupTokens = joinRE . mapRE (symbol (RESymbol . NonTerminal) (REConcat . map
--
prSRG :: SRG -> String
prSRG = prProductions . map prRule . srgRules
prSRG srg = prProductions $ map prRule $ ext ++ int
where
(ext,int) = partition (isExternalCat srg . srgLHSCat) (srgRules srg)
prRule (SRGRule c alts) = (c,unwords (intersperse "|" (map prAlt alts)))
prAlt (SRGAlt _ _ rhs) = prRE prSym rhs
prSym = symbol fst (\t -> "\""++ t ++"\"")