gh-104169: Fix test_peg_generator after tokenizer refactoring (#110727)

* Fix test_peg_generator after tokenizer refactoring
* Remove references to tokenizer.c in comments etc.

Lib/test/test_exceptions.py

@@ -253,7 +253,7 @@ class ExceptionTests(unittest.TestCase):
         check('try:\n  pass\nexcept*:\n  pass', 3, 8)
         check('try:\n  pass\nexcept*:\n  pass\nexcept* ValueError:\n  pass', 3, 8)
 
-        # Errors thrown by tokenizer.c
+        # Errors thrown by the tokenizer
         check('(0x+1)', 1, 3)
         check('x = 0xI', 1, 6)
         check('0010 + 2', 1, 1)

Lib/test/test_source_encoding.py

@@ -255,7 +255,7 @@ class UTF8ValidatorTest(unittest.TestCase):
     def test_invalid_utf8(self):
         # This is a port of test_utf8_decode_invalid_sequences in
         # test_unicode.py to exercise the separate utf8 validator in
-        # Parser/tokenizer.c used when reading source files.
+        # Parser/tokenizer/helpers.c used when reading source files.
 
         # That file is written using low-level C file I/O, so the only way to
         # test it is to write actual files to disk.

Lib/test/test_tokenize.py

@@ -1435,7 +1435,7 @@ class TestDetectEncoding(TestCase):
         self.assertEqual(consumed_lines, expected)
 
     def test_latin1_normalization(self):
-        # See get_normal_name() in tokenizer.c.
+        # See get_normal_name() in Parser/tokenizer/helpers.c.
         encodings = ("latin-1", "iso-8859-1", "iso-latin-1", "latin-1-unix",
                      "iso-8859-1-unix", "iso-latin-1-mac")
         for encoding in encodings:
@@ -1460,7 +1460,7 @@ class TestDetectEncoding(TestCase):
 
 
     def test_utf8_normalization(self):
-        # See get_normal_name() in tokenizer.c.
+        # See get_normal_name() in Parser/tokenizer/helpers.c.
         encodings = ("utf-8", "utf-8-mac", "utf-8-unix")
         for encoding in encodings:
             for rep in ("-", "_"):

Lib/tokenize.py

@@ -298,7 +298,7 @@ def untokenize(iterable):
 
 
 def _get_normal_name(orig_enc):
-    """Imitates get_normal_name in tokenizer.c."""
+    """Imitates get_normal_name in Parser/tokenizer/helpers.c."""
     # Only care about the first 12 characters.
     enc = orig_enc[:12].lower().replace("_", "-")
     if enc == "utf-8" or enc.startswith("utf-8-"):

Modules/config.c.in

@@ -45,7 +45,7 @@ struct _inittab _PyImport_Inittab[] = {
     /* This lives in Python/Python-ast.c */
     {"_ast", PyInit__ast},
 
-    /* This lives in Python/Python-tokenizer.c */
+    /* This lives in Python/Python-tokenize.c */
     {"_tokenize", PyInit__tokenize},
 
     /* These entries are here for sys.builtin_module_names */

Parser/myreadline.c

@@ -1,5 +1,5 @@
 
-/* Readline interface for tokenizer.c and [raw_]input() in bltinmodule.c.
+/* Readline interface for the tokenizer and [raw_]input() in bltinmodule.c.
    By default, or when stdin is not a tty device, we have a super
    simple my_readline function using fgets.
    Optionally, we can use the GNU readline library.
@@ -364,7 +364,7 @@ PyOS_StdioReadline(FILE *sys_stdin, FILE *sys_stdout, const char *prompt)
 char *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, const char *) = NULL;
 
 
-/* Interface used by tokenizer.c and bltinmodule.c */
+/* Interface used by file_tokenizer.c and bltinmodule.c */
 
 char *
 PyOS_Readline(FILE *sys_stdin, FILE *sys_stdout, const char *prompt)

Parser/string_parser.c

@@ -14,8 +14,9 @@ static int
 warn_invalid_escape_sequence(Parser *p, const char *first_invalid_escape, Token *t)
 {
     unsigned char c = *first_invalid_escape;
-    if ((t->type == FSTRING_MIDDLE || t->type == FSTRING_END) && (c == '{' || c == '}')) {  // in this case the tokenizer has already emitted a warning,
+    if ((t->type == FSTRING_MIDDLE || t->type == FSTRING_END) && (c == '{' || c == '}')) {
-                                                                                            // see tokenizer.c:warn_invalid_escape_sequence
+        // in this case the tokenizer has already emitted a warning,
+        // see Parser/tokenizer/helpers.c:warn_invalid_escape_sequence
         return 0;
     }
 

Python/traceback.c

@@ -32,7 +32,7 @@
 #define MAX_FRAME_DEPTH 100
 #define MAX_NTHREADS 100
 
-/* Function from Parser/tokenizer.c */
+/* Function from Parser/tokenizer/file_tokenizer.c */
 extern char* _PyTokenizer_FindEncodingFilename(int, PyObject *);
 
 /*[clinic input]

Tools/c-analyzer/TODO

@@ -428,8 +428,8 @@ Objects/typeobject.c:type_new():PyId___slots__                   _Py_IDENTIFIER(
 Objects/unicodeobject.c:unicodeiter_reduce():PyId_iter           _Py_IDENTIFIER(iter)
 Objects/weakrefobject.c:proxy_bytes():PyId___bytes__             _Py_IDENTIFIER(__bytes__)
 Objects/weakrefobject.c:weakref_repr():PyId___name__             _Py_IDENTIFIER(__name__)
-Parser/tokenizer.c:fp_setreadl():PyId_open                       _Py_IDENTIFIER(open)
+Parser/tokenizer/file_tokenizer.c:fp_setreadl():PyId_open        _Py_IDENTIFIER(open)
-Parser/tokenizer.c:fp_setreadl():PyId_readline                   _Py_IDENTIFIER(readline)
+Parser/tokenizer/file_tokenizer.c:fp_setreadl():PyId_readline    _Py_IDENTIFIER(readline)
 Python/Python-ast.c:ast_type_reduce():PyId___dict__              _Py_IDENTIFIER(__dict__)
 Python/Python-ast.c:make_type():PyId___module__                  _Py_IDENTIFIER(__module__)
 Python/_warnings.c:PyId_stderr                                   _Py_IDENTIFIER(stderr)

Tools/peg_generator/pegen/build.py

@@ -123,7 +123,14 @@ def compile_c_extension(
     common_sources = [
         str(MOD_DIR.parent.parent.parent / "Python" / "Python-ast.c"),
         str(MOD_DIR.parent.parent.parent / "Python" / "asdl.c"),
-        str(MOD_DIR.parent.parent.parent / "Parser" / "tokenizer.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "lexer" / "lexer.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "lexer" / "state.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "lexer" / "buffer.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "tokenizer" / "string_tokenizer.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "tokenizer" / "file_tokenizer.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "tokenizer" / "utf8_tokenizer.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "tokenizer" / "readline_tokenizer.c"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "tokenizer" / "helpers.c"),
         str(MOD_DIR.parent.parent.parent / "Parser" / "pegen.c"),
         str(MOD_DIR.parent.parent.parent / "Parser" / "pegen_errors.c"),
         str(MOD_DIR.parent.parent.parent / "Parser" / "action_helpers.c"),
@@ -133,6 +140,8 @@ def compile_c_extension(
     include_dirs = [
         str(MOD_DIR.parent.parent.parent / "Include" / "internal"),
         str(MOD_DIR.parent.parent.parent / "Parser"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "lexer"),
+        str(MOD_DIR.parent.parent.parent / "Parser" / "tokenizer"),
     ]
     extension = Extension(
         extension_name,