Various fixes and clean

Author: StefanosChaliasos

src/zkregex_fuzzer/chars.py

@@ -0,0 +1,15 @@
+import string
+
+
+def create_range(start_char: str, end_char: str) -> set[str]:
+    """
+    Create a set of characters from start_char to end_char.
+    """
+    return {chr(i) for i in range(ord(start_char), ord(end_char) + 1)}
+
+
+LATIN_EXT_CHARS = create_range("¡", "ƿ")
+GREEK_CHARS = create_range("Ͱ", "Ͽ")
+CYRILLIC_CHARS = create_range("Ѐ", "ӿ")
+ASCII_CHARS = set(string.printable)
+ALL_CHARS = ASCII_CHARS.union(LATIN_EXT_CHARS).union(GREEK_CHARS).union(CYRILLIC_CHARS)

src/zkregex_fuzzer/configs.py

@@ -5,7 +5,12 @@
     GrammarRegexGenerator,
 )
 from zkregex_fuzzer.runner import CircomRunner, NoirRunner, PythonReRunner
-from zkregex_fuzzer.vinpgen import ExrexGenerator, GrammarBasedGenerator, RstrGenerator
+from zkregex_fuzzer.vinpgen import (
+    DFAWalkerGenerator,
+    ExrexGenerator,
+    GrammarBasedGenerator,
+    RstrGenerator,
+)
 
 TARGETS = {
     "circom": CircomRunner,
@@ -21,6 +26,7 @@
     "grammar": GrammarBasedGenerator,
     "rstr": RstrGenerator,
     "exrex": ExrexGenerator,
+    "dfa": DFAWalkerGenerator,
 }
 
 GENERATORS = {