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Make charset lookups more efficient

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This commit is contained in:
Arian van Putten 2015-10-04 23:32:31 +02:00
parent 984a76f0f8
commit 1e0fa95620
1 changed files with 16 additions and 12 deletions
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28
servant-js/src/Servant/JS/Internal.hs
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@ -96,20 +96,24 @@ toValidFunctionName t =
Nothing -> "_"
where
setFirstChar c = if firstChar c then c else '_'
firstChar c = prefixOK c || any (Set.member c) firstLetterOK
remainder c = prefixOK c || any (Set.member c) remainderOK
firstChar c = prefixOK c || Set.member c firstLetterOK
remainder c = prefixOK c || Set.member c remainderOK
prefixOK c = c `elem` ['$','_']
firstLetterOK = [ Set.lowercaseLetter
, Set.uppercaseLetter
, Set.titlecaseLetter
, Set.modifierLetter
, Set.otherLetter
, Set.letterNumber ]
firstLetterOK = mconcat
[ Set.lowercaseLetter
, Set.uppercaseLetter
, Set.titlecaseLetter
, Set.modifierLetter
, Set.otherLetter
, Set.letterNumber
]
remainderOK = firstLetterOK
<> [ Set.nonSpacingMark
, Set.spacingCombiningMark
, Set.decimalNumber
, Set.connectorPunctuation ]
<> mconcat
[ Set.nonSpacingMark
, Set.spacingCombiningMark
, Set.decimalNumber
, Set.connectorPunctuation
]
toJSHeader :: HeaderArg -> Text
toJSHeader (HeaderArg n) = toValidFunctionName ("header" <> n)