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feat: adjust mixfix syntax

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Leonardo de Moura 2020-09-07 15:48:53 -07:00
parent aed9b16dc8
commit 804ebcec16
1 changed files with 2 additions and 7 deletions
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9
src/Lean/Parser/Syntax.lean
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@ -49,15 +49,10 @@ def «infix» := parser! "infix"
def «infixl» := parser! "infixl"
def «infixr» := parser! "infixr"
def «postfix» := parser! "postfix"
def mixfixKind := «prefix» <|> «infix» <|> «infixl» <|> «infixr» <|> «postfix»
-- TODO delete reserve after old frontend is gone
@[builtinCommandParser] def «reserve» := parser! "reserve " >> mixfixKind >> quotedSymbol >> optPrecedence
def mixfixSymbol := (quotedSymbol >> optPrecedence /- TODO: remove precedence after we delete old precedence -/) <|> unquotedSymbol
def identPrec := parser! ident >> optPrecedence
-- TODO: remove " := " after old frontend is gone
@[builtinCommandParser] def «mixfix» := parser! mixfixKind >> optPrecedence >> mixfixSymbol >> (" := " <|> darrow) >> termParser
@[builtinCommandParser] def «mixfix» := parser! mixfixKind >> «precedence» >> strLit >> darrow >> termParser
def identPrec := parser! ident >> optPrecedence
def optKind : Parser := optional ("[" >> ident >> "]")
def notationItem := withAntiquot (mkAntiquot "notationItem" `Lean.Parser.Command.notationItem) (strLit <|> quotedSymbol <|> identPrec)
-- TODO: remove " := " after old frontend is gone