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Addressing #1200 and #1162 by additional priorities for the Sym non-terminal. The bootstrap and tests all run, but this change requires peer review and manual testing, for which I currently do not have the concentration. #1201

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Addressing #1200 and #1162 by additional priorities for the Sym non-terminal. The bootstrap and tests all run, but this change requires peer review and manual testing, for which I currently do not have the concentration. #1201

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Addressing #1200 and #1162 by additional priorities for the Sym non-t…
jurgenvinju Jul 19, 2018
66d38c3
Merge branch 'main' into addressing-symbol-ambiguity
jurgenvinju Nov 27, 2025
325fd06
regenerated parser with new priorities
jurgenvinju Nov 27, 2025
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16 changes: 6 additions & 10 deletions src/org/rascalmpl/library/lang/rascal/syntax/Rascal.rsc
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Original file line number Diff line number Diff line change
Expand Up @@ -104,29 +104,25 @@ syntax Sym
| parameter: "&" Nonterminal nonterminal
| parametrized: Nonterminal nonterminal >> "[" "[" {Sym ","}+ parameters "]"
| \start: "start" "[" Nonterminal nonterminal "]"
| labeled: Sym symbol NonterminalLabel label
// literals
| characterClass: Class charClass
| literal: StringConstant string
| caseInsensitiveLiteral: CaseInsensitiveStringConstant cistring
// regular expressions
| iter: Sym symbol "+"
| iterStar: Sym symbol "*"
| iterSep: "{" Sym symbol Sym sep "}" "+"
| iterStarSep: "{" Sym symbol Sym sep "}" "*"
| optional: Sym symbol "?"
| alternative: "(" Sym first "|" {Sym "|"}+ alternatives ")"
| sequence: "(" Sym first Sym+ sequence ")"
// TODO: MinimalIter: Sym symbol IntegerConstant minimal "+"
// TODO: MinimalIterSep: "{" Sym symbol Symbol sep "}" IntegerConstant minimal "+"
// TODO | Permutation: "(" Sym first "~" {Sym "~"}+ participants ")"
// TODO | Combination: "(" Sym first "#" {Sym "#"}+ elements ")"
| empty: "(" ")"
// conditionals
| column: Sym symbol "@" IntegerLiteral column
| endOfLine: Sym symbol "$"
| startOfLine: "^" Sym symbol
> column: Sym symbol "@" IntegerLiteral column
| labeled: Sym symbol NonterminalLabel label
| optional: Sym symbol "?"
| endOfLine: Sym symbol "$"
| except: Sym symbol "!" NonterminalLabel label
| iter: Sym symbol "+"
| iterStar: Sym symbol "*"
>
assoc (
left ( follow: Sym symbol "\>\>" Sym match
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