Upstream pyparsing/pyparsing state of the touched files before 9fc0715647

pyparsing/core.py

@@ -4703,9 +4703,6 @@ class Or(ParseExpression):
         if self.exprs:
             self._may_return_empty = any(e.mayReturnEmpty for e in self.exprs)
             self.skipWhitespace = all(e.skipWhitespace for e in self.exprs)
-            # pre-skip whitespace here only if every alternative would have
-            # done so itself, matching the condition used in parseImpl below
-            self.callPreparse = all(e.callPreparse for e in self.exprs)
         else:
             self._may_return_empty = True
 
@@ -4866,10 +4863,6 @@ class MatchFirst(ParseExpression):
         if self.exprs:
             self._may_return_empty = any(e.mayReturnEmpty for e in self.exprs)
             self.skipWhitespace = all(e.skipWhitespace for e in self.exprs)
-            # pre-skip whitespace here only if every alternative would have
-            # done so itself; an alternative starting with White() must not
-            # lose the whitespace it needs to see
-            self.callPreparse = all(e.callPreparse for e in self.exprs)
         else:
             self._may_return_empty = True