diff options
Diffstat (limited to 'pyparsing/core.py')
| -rw-r--r-- | pyparsing/core.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/pyparsing/core.py b/pyparsing/core.py index a6858bd..1a92ca5 100644 --- a/pyparsing/core.py +++ b/pyparsing/core.py @@ -1904,6 +1904,11 @@ class ParserElement(ABC): """ Check defined expressions for valid structure, check for infinite recursive definitions. """ + warnings.warn( + "ParserElement.validate() is deprecated, and should not be used to check for left recursion", + DeprecationWarning, + stacklevel=2, + ) self._checkRecursion([]) def parse_file( @@ -3811,6 +3816,11 @@ class ParseExpression(ParserElement): return self def validate(self, validateTrace=None) -> None: + warnings.warn( + "ParserElement.validate() is deprecated, and should not be used to check for left recursion", + DeprecationWarning, + stacklevel=2, + ) tmp = (validateTrace if validateTrace is not None else [])[:] + [self] for e in self.exprs: e.validate(tmp) @@ -4550,6 +4560,11 @@ class ParseElementEnhance(ParserElement): self.expr._checkRecursion(subRecCheckList) def validate(self, validateTrace=None) -> None: + warnings.warn( + "ParserElement.validate() is deprecated, and should not be used to check for left recursion", + DeprecationWarning, + stacklevel=2, + ) if validateTrace is None: validateTrace = [] tmp = validateTrace[:] + [self] @@ -5455,6 +5470,11 @@ class Forward(ParseElementEnhance): return self def validate(self, validateTrace=None) -> None: + warnings.warn( + "ParserElement.validate() is deprecated, and should not be used to check for left recursion", + DeprecationWarning, + stacklevel=2, + ) if validateTrace is None: validateTrace = [] |