fix: update func api in debugging_custom_grammar.md (#56)

Author: Saibo-creator

docs/debugging_custom_grammars.md

@@ -90,18 +90,18 @@ We provide a simple script to do this:
 
 ```python
 from transformers_cfg.parser import parse_ebnf
-from transformers_cfg.recognizer import GrammarRecognizer
+from transformers_cfg.recognizer import StringRecognizer
 
 with open("examples/grammars/json.ebnf", "r") as file:
     input_text = file.read()
 parsed_grammar = parse_ebnf(input_text)
 
 start_rule_id = parsed_grammar.symbol_table["root"]
-recognizer = GrammarRecognizer(parsed_grammar.grammar_encoding, start_rule_id)
+recognizer = StringRecognizer(parsed_grammar.grammar_encoding, start_rule_id)
 
 # Test the grammar with a simple input
 json_input = '{"foo": "bar", "baz": "bat"}'
-is_accepted = recognizer._accept_prefix(json_input, recognizer.stacks)
+is_accepted = recognizer._accept_prefix(json_input)
 print(is_accepted)
 ```
 
@@ -112,7 +112,7 @@ N.B. the recognizer can accept partial input, so you can try the following:
 
 ```python
 json_input = '{"foo": "bar"'
-is_accepted = recognizer._accept_prefix(json_input, recognizer.stacks)
+is_accepted = recognizer._accept_prefix(json_input)
 print(is_accepted)
 ```
 

transformers_cfg/recognizer.py

@@ -444,28 +444,9 @@ def char_acceptance_at_element(self, element_offset):
         logging.debug(acceptance)
         return acceptance
 
-    # def _consume_code_points_new(
-    #     self, code_points: List[int], stacks: Set[Tuple[int]], verbose=False
-    # ) -> Set[Tuple[int]]:
-    #     new_stacks: Set[Tuple[int]] = set()
-    #     for stack in stacks:
-    #         new_stacks.update(
-    #             self._consume_code_points_per_stack(tuple(code_points), stack, verbose)
-    #         )
-    #     return new_stacks
-    #
-    # @lru_cache(maxsize=30000)
-    # def _consume_code_points_per_stack(
-    #     self, code_points: Tuple[int], stack: Tuple[int], verbose=False
-    # ) -> Set[Tuple[int]]:
-    #     stacks = {stack}
-    #
-    #     for code_point in code_points:
-    #         # Update the stacks variable by consuming each code point.
-    #         stacks = self._consume_code_point_for_all_stacks(code_point, (stack,))
-    #
-    #     return stacks
 
+# backward compatibility, add alias of StringRecognizer to GrammarRecognizer
+GrammarRecognizer = StringRecognizer
 
 if __name__ == "__main__":
     # set logging level