lib: Add missing CAN to checker

lib/checker.py

@@ -16,16 +16,12 @@ def get_task(string: str) -> Tuple[str, str]:  # from IS task prefix
 
 
 def dfa_transform(string: str, automaton_type: str) -> reg.DFA:
-    try:
-        if automaton_type in {"DFA", "TOT", "MIN", "TOC", "MIC"}:
+    if automaton_type in {"DFA", "TOT", "MIN", "TOC", "CAN", "MIC"}:
         parser = Parser()
         return parser.str_to_dfa(string)
     else:
         return nfa_transform(string, automaton_type).determinize()
 
-    except ParsingError as ex:
-        raise ParsingError(ex.args)
-
 
 def nfa_transform(string: str, automaton_type: str) -> reg.NFA:
     try:
@@ -37,7 +33,7 @@ def nfa_transform(string: str, automaton_type: str) -> reg.NFA:
             automaton = parser.str_to_reggrammar(string).eliminate_useless().reggrammar_to_nfa()
         elif automaton_type == "REG":
             automaton = parser.str_to_regex(string).regex_to_efa().eliminate_epsilon()
-        elif automaton_type in {"DFA", "TOT", "MIN", "TOC", "MIC"}:
+        elif automaton_type in {"DFA", "TOT", "MIN", "TOC", "CAN", "MIC"}:
             automaton = parser.str_to_dfa(string).dfa_to_nfa()
 
         return reg.NFA(automaton.states, automaton.characters, automaton.transition, automaton.init, automaton.final)
@@ -50,7 +46,7 @@ def transform(string: str, automaton_type: str) -> Union[reg.DFA, reg.NFA, reg.R
     try:
         parser = Parser()
 
-        if automaton_type in {"DFA", "TOT", "MIN", "TOC", "MIC"}:
+        if automaton_type in {"DFA", "TOT", "MIN", "TOC", "CAN", "MIC"}:
             formalism = parser.str_to_dfa(string)
         elif automaton_type in {"EFA", "NFA"}:
             formalism = parser.str_to_nfa(string)
@@ -74,7 +70,7 @@ def check_task(automaton: Union[reg.DFA, reg.NFA], task: str) -> str:
             output = "NFA obsahuje ε-kroky."
         return output
 
-    if task not in {"TOT", "MIN", "TOC", "MIC"}:
+    if task not in {"TOT", "MIN", "TOC", "CAN", "MIC"}:
         return output
 
     if task == "TOT" and not automaton.is_total():