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allow quantifiers \forall and \exists in addition to \A and \E #219

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Merged
ahelwer merged 1 commit into from
Jun 19, 2025
Merged

allow quantifiers \forall and \exists in addition to \A and \E #219

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3 changes: 2 additions & 1 deletion src/alexer.mll
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Expand Up @@ -93,7 +93,8 @@ and token = parse
{ [ ST (`Num (int_of_string num), lab, String.length dots) ] }

| (","|"."|"_"|"("|")"|"["|"]"|"{"|"}"|"<<"|">>"|"]_"|">>_"|"=="|"!"
|"@"|":"|"::"|";"|"->"|"<-"|"|->"|"\\A"|"\\AA"|"\\E"|"\\EE"|'_' as p)
|"@"|":"|"::"|";"|"->"|"<-"|"|->"|"\\A"|"\\AA"|"\\E"|"\\EE"|'_'
|"\\forall"|"\\exists" as p)
{ [ PUNCT p ] }

(* numbers *)
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2 changes: 2 additions & 0 deletions src/expr/e_parser.ml
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Expand Up @@ -549,6 +549,8 @@ and complex_expr b = lazy begin
locate begin
choice [ punct "\\A" <!> Forall ;
punct "\\E" <!> Exists ;
punct "\\forall" <!> Forall ;
punct "\\exists" <!> Exists ;
]
<**> (quantifier_boundeds b)
<**> (colon_expr b)
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3 changes: 0 additions & 3 deletions test/parser/parser_tests.ml
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Expand Up @@ -95,9 +95,6 @@ let expect_failure (test : syntax_test) : bool =
"Conjlist with RECURSIVE in LET/IN";
"Disjlist with RECURSIVE in LET/IN";

(* https://github.com/tlaplus/tlapm/issues/160 *)
"Verbose Bounded Quantification";

(* https://github.com/tlaplus/tlapm/issues/161 *)
"Infix Minus as Parameter";
"Prefix Operator References";
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