feat: use actual separator in sepBy antiquotation scope
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12 changed files with 63 additions and 68 deletions
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@ -1709,6 +1709,8 @@ inductive ParserDescr where
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| cat (catName : Name) (rbp : Nat)
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| parser (declName : Name)
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| nodeWithAntiquot (name : String) (kind : SyntaxNodeKind) (p : ParserDescr)
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| sepBy (p : ParserDescr) (sep : String) (psep : ParserDescr) (allowTrailingSep : Bool := false)
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| sepBy1 (p : ParserDescr) (sep : String) (psep : ParserDescr) (allowTrailingSep : Bool := false)
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instance : Inhabited ParserDescr where
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default := ParserDescr.symbol ""
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@ -74,8 +74,8 @@ private partial def quoteSyntax : Syntax → TermElabM Syntax
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| _ => throwErrorAt stx "too many antiquotations in antiquotation scope; don't be greedy"
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let arr ←
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if k == `sepBy then
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let Syntax.atom _ sep ← (getAntiquotScopeSuffix arg)[0] | unreachable!
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`(mkSepArray $arr (mkAtom $(Syntax.mkStrLit sep)))
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let Syntax.atom _ sep ← getAntiquotScopeSuffix arg | unreachable!
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`(mkSepArray $arr (mkAtom $(Syntax.mkStrLit (sep.dropRight 1))))
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else arr
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let arr ← bindLets arr
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`(Array.appendCore $args $arr)
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@ -96,17 +96,13 @@ partial def toParserDescrAux (stx : Syntax) : ToParserDescrM Syntax := withRef s
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let sep := stx[3]
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let psep ← if stx[4].isNone then `(ParserDescr.symbol $sep) else toParserDescrAux stx[4][1]
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let allowTrailingSep := !stx[5].isNone
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--`(ParserDescr.sepBy $p $sep $psep $(quote allowTrailingSep))
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let sepBy := if allowTrailingSep then `sepByT else `sepBy
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`(ParserDescr.binary $(quote sepBy) $p $psep)
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`(ParserDescr.sepBy $p $sep $psep $(quote allowTrailingSep))
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else if kind == `Lean.Parser.Syntax.sepBy1 then
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let p ← withNestedParser $ toParserDescrAux stx[1]
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let sep := stx[3]
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let psep ← if stx[4].isNone then `(ParserDescr.symbol $sep) else toParserDescrAux stx[4][1]
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let allowTrailingSep := !stx[5].isNone
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--`(ParserDescr.sepBy1 $p $sep $psep $(quote allowTrailingSep))
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let sepBy := if allowTrailingSep then `sepBy1T else `sepBy1
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`(ParserDescr.binary $(quote sepBy) $p $psep)
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`(ParserDescr.sepBy1 $p $sep $psep $(quote allowTrailingSep))
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else if kind == `Lean.Parser.Syntax.cat then
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let cat := stx[0].getId.eraseMacroScopes
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let prec? : Option Nat := expandOptPrecedence stx[1]
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@ -33,12 +33,8 @@ builtin_initialize
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registerAlias "optional" optional
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registerAlias "withPosition" withPosition
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registerAlias "interpolatedStr" interpolatedStr
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registerAlias "sepBy" sepBy
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registerAlias "sepBy1" sepBy1
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registerAlias "orelse" orelse
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registerAlias "andthen" andthen
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registerAlias "sepByT" (sepBy (allowTrailingSep := true))
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registerAlias "sepBy1T" (sepBy1 (allowTrailingSep := true))
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end Parser
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@ -58,6 +54,23 @@ def mkAntiquot.parenthesizer (name : String) (kind : Option SyntaxNodeKind) (ano
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@[builtinParenthesizer charLit] def charLit.parenthesizer : Parenthesizer := Parser.Term.char.parenthesizer
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@[builtinParenthesizer strLit] def strLit.parenthesizer : Parenthesizer := Parser.Term.str.parenthesizer
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open Lean.Parser
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@[export lean_pretty_printer_parenthesizer_interpret_parser_descr]
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unsafe def interpretParserDescr : ParserDescr → CoreM Parenthesizer
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| ParserDescr.const n => getConstAlias parenthesizerAliasesRef n
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| ParserDescr.unary n d => return (← getUnaryAlias parenthesizerAliasesRef n) (← interpretParserDescr d)
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| ParserDescr.binary n d₁ d₂ => return (← getBinaryAlias parenthesizerAliasesRef n) (← interpretParserDescr d₁) (← interpretParserDescr d₂)
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| ParserDescr.node k prec d => return leadingNode.parenthesizer k prec (← interpretParserDescr d)
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| ParserDescr.nodeWithAntiquot _ k d => return node.parenthesizer k (← interpretParserDescr d)
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| ParserDescr.sepBy p sep psep trail => return sepBy.parenthesizer (← interpretParserDescr p) sep (← interpretParserDescr psep) trail
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| ParserDescr.sepBy1 p sep psep trail => return sepBy1.parenthesizer (← interpretParserDescr p) sep (← interpretParserDescr psep) trail
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| ParserDescr.trailingNode k prec d => return trailingNode.parenthesizer k prec (← interpretParserDescr d)
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| ParserDescr.symbol tk => return symbol.parenthesizer tk
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| ParserDescr.nonReservedSymbol tk includeIdent => return nonReservedSymbol.parenthesizer tk includeIdent
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| ParserDescr.parser constName => combinatorParenthesizerAttribute.runDeclFor constName
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| ParserDescr.cat catName prec => return categoryParser.parenthesizer catName prec
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end Parenthesizer
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namespace Formatter
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@ -72,6 +85,23 @@ def mkAntiquot.formatter (name : String) (kind : Option SyntaxNodeKind) (anonymo
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@[builtinFormatter charLit] def charLit.formatter : Formatter := Parser.Term.char.formatter
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@[builtinFormatter strLit] def strLit.formatter : Formatter := Parser.Term.str.formatter
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open Lean.Parser
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@[export lean_pretty_printer_formatter_interpret_parser_descr]
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unsafe def interpretParserDescr : ParserDescr → CoreM Formatter
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| ParserDescr.const n => getConstAlias formatterAliasesRef n
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| ParserDescr.unary n d => return (← getUnaryAlias formatterAliasesRef n) (← interpretParserDescr d)
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| ParserDescr.binary n d₁ d₂ => return (← getBinaryAlias formatterAliasesRef n) (← interpretParserDescr d₁) (← interpretParserDescr d₂)
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| ParserDescr.node k prec d => return node.formatter k (← interpretParserDescr d)
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| ParserDescr.nodeWithAntiquot _ k d => return node.formatter k (← interpretParserDescr d)
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| ParserDescr.sepBy p sep psep trail => return sepBy.formatter (← interpretParserDescr p) sep (← interpretParserDescr psep) trail
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| ParserDescr.sepBy1 p sep psep trail => return sepBy1.formatter (← interpretParserDescr p) sep (← interpretParserDescr psep) trail
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| ParserDescr.trailingNode k prec d => return trailingNode.formatter k prec (← interpretParserDescr d)
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| ParserDescr.symbol tk => return symbol.formatter tk
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| ParserDescr.nonReservedSymbol tk includeIdent => return nonReservedSymbol.formatter tk
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| ParserDescr.parser constName => combinatorFormatterAttribute.runDeclFor constName
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| ParserDescr.cat catName prec => return categoryParser.formatter catName
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end Formatter
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end PrettyPrinter
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end Lean
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@ -1643,6 +1643,15 @@ def nodeWithAntiquot (name : String) (kind : SyntaxNodeKind) (p : Parser) (anony
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/- End of Antiquotations -/
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/- ===================== -/
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def sepByElemParser (p : Parser) (sep : String) : Parser :=
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withAntiquot (mkAntiquotScope `sepBy p (symbol (sep.trim ++ "*"))) p
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def sepBy (p : Parser) (sep : String) (psep : Parser := symbol sep) (allowTrailingSep : Bool := false) : Parser :=
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sepByNoAntiquot (sepByElemParser p sep) psep allowTrailingSep
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def sepBy1 (p : Parser) (sep : String) (psep : Parser := symbol sep) (allowTrailingSep : Bool := false) : Parser :=
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sepBy1NoAntiquot (sepByElemParser p sep) psep allowTrailingSep
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def categoryParserOfStackFn (offset : Nat) : ParserFn := fun ctx s =>
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let stack := s.stxStack
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if stack.size < offset + 1 then
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@ -77,9 +77,7 @@ def elseIf := atomic (group (withPosition (" else " >> checkLineEq >> " if ")))
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@[builtinDoElemParser] def doUnless := parser! "unless " >> withForbidden "do" termParser >> "do " >> doSeq
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@[builtinDoElemParser] def doFor := parser! "for " >> termParser >> " in " >> withForbidden "do" termParser >> "do " >> doSeq
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/- `match`-expression where the right-hand-side of alternatives is a `doSeq` instead of a `term` -/
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def doMatchAlt : Parser := parser! sepBy1 termParser ", " >> darrow >> doSeq
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def doMatchAlts : Parser := parser! withPosition $ (optional "| ") >> sepBy1 doMatchAlt (checkColGe "alternatives must be indented" >> "| ")
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def doMatchAlts := matchAlts (rhsParser := doSeq)
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@[builtinDoElemParser] def doMatch := parser!:leadPrec "match " >> sepBy1 matchDiscr ", " >> optType >> " with " >> doMatchAlts
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def doCatch := parser! atomic ("catch " >> binderIdent) >> optional (" : " >> termParser) >> darrow >> doSeq
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@ -275,6 +275,8 @@ partial def compileParserDescr (categories : ParserCategories) (d : ParserDescr)
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| ParserDescr.binary n d₁ d₂ => return (← getBinaryAlias parserAliasesRef n) (← visit d₁) (← visit d₂)
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| ParserDescr.node k prec d => return leadingNode k prec (← visit d)
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| ParserDescr.nodeWithAntiquot n k d => return nodeWithAntiquot n k (← visit d) (anonymous := true)
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| ParserDescr.sepBy p sep psep trail => return sepBy (← visit p) sep (← visit psep) trail
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| ParserDescr.sepBy1 p sep psep trail => return sepBy1 (← visit p) sep (← visit psep) trail
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| ParserDescr.trailingNode k prec d => return trailingNode k prec (← visit d)
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| ParserDescr.symbol tk => return symbol tk
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| ParserDescr.nonReservedSymbol tk includeIdent => return nonReservedSymbol tk includeIdent
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@ -14,7 +14,7 @@ namespace Parser
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-- synthesize pretty printers for parsers declared prior to `Lean.PrettyPrinter`
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-- (because `Parser.Extension` depends on them)
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attribute [runBuiltinParserAttributeHooks]
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leadingNode termParser commandParser mkAntiquot nodeWithAntiquot
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leadingNode termParser commandParser mkAntiquot nodeWithAntiquot sepBy sepBy1
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@[runBuiltinParserAttributeHooks] def optional (p : Parser) : Parser :=
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optionalNoAntiquot (withAntiquot (mkAntiquotScope `optional p (symbol "?")) p)
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@ -25,16 +25,6 @@ attribute [runBuiltinParserAttributeHooks]
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@[runBuiltinParserAttributeHooks] def many1 (p : Parser) : Parser :=
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many1NoAntiquot (withAntiquot (mkAntiquotScope `many p (symbol "*")) p)
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-- all the separators you could ever want
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@[runBuiltinParserAttributeHooks] def sepByScopeSuffixes : Parser :=
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parser! (symbol "," <|> symbol ";" <|> symbol "|") >> symbol "*"
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@[runBuiltinParserAttributeHooks] def sepBy (p psep : Parser) (allowTrailingSep : Bool := false) : Parser :=
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sepByNoAntiquot (withAntiquot (mkAntiquotScope `sepBy p sepByScopeSuffixes) p) psep allowTrailingSep
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@[runBuiltinParserAttributeHooks] def sepBy1 (p psep : Parser) (allowTrailingSep : Bool := false) : Parser :=
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sepBy1NoAntiquot (withAntiquot (mkAntiquotScope `sepBy p sepByScopeSuffixes) p) psep allowTrailingSep
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@[runBuiltinParserAttributeHooks] def ident : Parser :=
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withAntiquot (mkAntiquot "ident" identKind) identNoAntiquot
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@ -136,10 +126,6 @@ builtin_initialize
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registerAlias "many" many.parenthesizer
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registerAlias "many1" many1.parenthesizer
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registerAlias "optional" optional.parenthesizer
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registerAlias "sepBy" sepBy.parenthesizer
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registerAlias "sepBy1" sepBy1.parenthesizer
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registerAlias "sepByT" sepBy.parenthesizer
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registerAlias "sepBy1T" sepBy1.parenthesizer
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open PrettyPrinter.Formatter (registerAlias) in
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builtin_initialize
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@ -152,9 +138,5 @@ builtin_initialize
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registerAlias "many" many.formatter
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registerAlias "many1" many1.formatter
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registerAlias "optional" optional.formatter
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registerAlias "sepBy" sepBy.formatter
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registerAlias "sepBy1" sepBy1.formatter
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registerAlias "sepByT" sepBy.formatter
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registerAlias "sepBy1T" sepBy1.formatter
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end Lean
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@ -27,7 +27,7 @@ def tacticSeq :=
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/- Raw sequence for quotation and grouping -/
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def seq1 :=
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node `Lean.Parser.Tactic.seq1 $ sepBy1 tacticParser ";\n" true
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node `Lean.Parser.Tactic.seq1 $ sepBy1 tacticParser ";\n" (allowTrailingSep := true)
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end Tactic
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@ -109,14 +109,14 @@ def simpleBinder := parser! many1 binderIdent >> optType
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@[builtinTermParser]
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def «forall» := parser!:leadPrec unicodeSymbol "∀ " "forall" >> many1 (ppSpace >> (simpleBinder <|> bracketedBinder)) >> ", " >> termParser
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def matchAlt : Parser :=
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def matchAlt (rhsParser : Parser := termParser) : Parser :=
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nodeWithAntiquot "matchAlt" `Lean.Parser.Term.matchAlt $
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sepBy1 termParser ", " >> darrow >> termParser
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sepBy1 termParser ", " >> darrow >> rhsParser
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def matchAlts (optionalFirstBar := true) : Parser :=
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def matchAlts (rhsParser : Parser := termParser) (optionalFirstBar := true) : Parser :=
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parser! ppDedent $ withPosition $
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ppLine >> (if optionalFirstBar then optional "| " else group "| ") >>
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sepBy1 (ppIndent matchAlt) (ppLine >> checkColGe "alternatives must be indented" >> "| ")
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sepBy1 (ppIndent <| matchAlt rhsParser) "|" (ppLine >> checkColGe "alternatives must be indented" >> "| ")
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def matchDiscr := parser! optional (atomic (ident >> checkNoWsBefore "no space before ':'" >> ":")) >> termParser
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@ -128,7 +128,7 @@ def funSimpleBinder := atomic (lookahead (many1 binderIdent >> " : ")) >> simp
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def funBinder : Parser := funImplicitBinder <|> instBinder <|> funSimpleBinder <|> termParser maxPrec
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-- NOTE: we use `nodeWithAntiquot` to ensure that `fun $b => ...` remains a `term` antiquotation
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def basicFun : Parser := nodeWithAntiquot "basicFun" `Lean.Parser.Term.basicFun (many1 (ppSpace >> funBinder) >> darrow >> termParser)
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@[builtinTermParser] def «fun» := parser!:maxPrec unicodeSymbol "λ" "fun" >> (basicFun <|> matchAlts false)
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@[builtinTermParser] def «fun» := parser!:maxPrec unicodeSymbol "λ" "fun" >> (basicFun <|> matchAlts (optionalFirstBar := false))
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def optExprPrecedence := optional (atomic ":" >> termParser maxPrec)
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@[builtinTermParser] def «parser!» := parser!:leadPrec "parser! " >> optExprPrecedence >> termParser
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@ -142,7 +142,7 @@ def simpleBinderWithoutType := node `Lean.Parser.Term.simpleBinder (many1 binder
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def letIdLhs : Parser := ident >> checkWsBefore "expected space before binders" >> many (ppSpace >> (simpleBinderWithoutType <|> bracketedBinder)) >> optType
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def letIdDecl := node `Lean.Parser.Term.letIdDecl $ atomic (letIdLhs >> " := ") >> termParser
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def letPatDecl := node `Lean.Parser.Term.letPatDecl $ atomic (termParser >> pushNone >> optType >> " := ") >> termParser
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def letEqnsDecl := node `Lean.Parser.Term.letEqnsDecl $ letIdLhs >> matchAlts false
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def letEqnsDecl := node `Lean.Parser.Term.letEqnsDecl $ letIdLhs >> matchAlts (optionalFirstBar := false)
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-- Remark: we use `nodeWithAntiquot` here to make sure anonymous antiquotations (e.g., `$x`) are not `letDecl`
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def letDecl := nodeWithAntiquot "letDecl" `Lean.Parser.Term.letDecl (notFollowedBy (nonReservedSymbol "rec") "rec" >> (letIdDecl <|> letPatDecl <|> letEqnsDecl))
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@[builtinTermParser] def «let» := parser!:leadPrec withPosition ("let " >> letDecl) >> optSemicolon termParser
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@ -163,7 +163,7 @@ def «letrec» := parser!:leadPrec withPosition (group ("let " >> nonReservedSym
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@[runBuiltinParserAttributeHooks]
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def whereDecls := parser! "where " >> many1Indent (group (optional «attributes» >> letDecl >> optional ";"))
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@[runBuiltinParserAttributeHooks]
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def matchAltsWhereDecls := parser! matchAlts false >> optional whereDecls
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def matchAltsWhereDecls := parser! matchAlts (optionalFirstBar := false) >> optional whereDecls
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@[builtinTermParser] def nativeRefl := parser! "nativeRefl! " >> termParser maxPrec
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@[builtinTermParser] def nativeDecide := parser! "nativeDecide!"
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@ -121,6 +121,8 @@ def compileEmbeddedParsers : ParserDescr → MetaM Unit
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| ParserDescr.parser constName => discard $ compileParserExpr ctx (mkConst constName) (force := false)
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| ParserDescr.node _ _ d => compileEmbeddedParsers d
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| ParserDescr.nodeWithAntiquot _ _ d => compileEmbeddedParsers d
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| ParserDescr.sepBy p _ psep _ => compileEmbeddedParsers p *> compileEmbeddedParsers psep
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| ParserDescr.sepBy1 p _ psep _ => compileEmbeddedParsers p *> compileEmbeddedParsers psep
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| ParserDescr.trailingNode _ _ d => compileEmbeddedParsers d
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| ParserDescr.symbol _ => pure ()
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| ParserDescr.nonReservedSymbol _ _ => pure ()
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@ -456,19 +456,6 @@ builtin_initialize
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registerAlias "orelse" orelse.formatter
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registerAlias "andthen" andthen.formatter
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@[export lean_pretty_printer_formatter_interpret_parser_descr]
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unsafe def interpretParserDescr : ParserDescr → CoreM Formatter
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| ParserDescr.const n => getConstAlias formatterAliasesRef n
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| ParserDescr.unary n d => return (← getUnaryAlias formatterAliasesRef n) (← interpretParserDescr d)
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| ParserDescr.binary n d₁ d₂ => return (← getBinaryAlias formatterAliasesRef n) (← interpretParserDescr d₁) (← interpretParserDescr d₂)
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| ParserDescr.node k prec d => return node.formatter k (← interpretParserDescr d)
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| ParserDescr.nodeWithAntiquot _ k d => return node.formatter k (← interpretParserDescr d)
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| ParserDescr.trailingNode k prec d => return trailingNode.formatter k prec (← interpretParserDescr d)
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| ParserDescr.symbol tk => return symbol.formatter tk
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| ParserDescr.nonReservedSymbol tk includeIdent => return nonReservedSymbol.formatter tk
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| ParserDescr.parser constName => combinatorFormatterAttribute.runDeclFor constName
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| ParserDescr.cat catName prec => return categoryParser.formatter catName
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end Formatter
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open Formatter
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@ -511,19 +511,6 @@ builtin_initialize
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registerAlias "orelse" orelse.parenthesizer
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registerAlias "andthen" andthen.parenthesizer
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@[export lean_pretty_printer_parenthesizer_interpret_parser_descr]
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unsafe def interpretParserDescr : ParserDescr → CoreM Parenthesizer
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| ParserDescr.const n => getConstAlias parenthesizerAliasesRef n
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| ParserDescr.unary n d => return (← getUnaryAlias parenthesizerAliasesRef n) (← interpretParserDescr d)
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| ParserDescr.binary n d₁ d₂ => return (← getBinaryAlias parenthesizerAliasesRef n) (← interpretParserDescr d₁) (← interpretParserDescr d₂)
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| ParserDescr.node k prec d => return leadingNode.parenthesizer k prec (← interpretParserDescr d)
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| ParserDescr.nodeWithAntiquot _ k d => return node.parenthesizer k (← interpretParserDescr d)
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| ParserDescr.trailingNode k prec d => return trailingNode.parenthesizer k prec (← interpretParserDescr d)
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| ParserDescr.symbol tk => return symbol.parenthesizer tk
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| ParserDescr.nonReservedSymbol tk includeIdent => return nonReservedSymbol.parenthesizer tk includeIdent
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| ParserDescr.parser constName => combinatorParenthesizerAttribute.runDeclFor constName
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| ParserDescr.cat catName prec => return categoryParser.parenthesizer catName prec
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end Parenthesizer
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open Parenthesizer
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|
|||
Loading…
Add table
Reference in a new issue