gh-121445: C implementation for fnmatch.translate

Include/internal/pycore_global_strings.h

@@ -351,6 +351,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(col_offset)
         STRUCT_FOR_ID(command)
         STRUCT_FOR_ID(comment_factory)
+        STRUCT_FOR_ID(compile)
         STRUCT_FOR_ID(compile_mode)
         STRUCT_FOR_ID(consts)
         STRUCT_FOR_ID(context)
@@ -404,6 +405,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(entrypoint)
         STRUCT_FOR_ID(env)
         STRUCT_FOR_ID(errors)
+        STRUCT_FOR_ID(escape)
         STRUCT_FOR_ID(event)
         STRUCT_FOR_ID(eventmask)
         STRUCT_FOR_ID(exc_type)
@@ -432,6 +434,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(filter)
         STRUCT_FOR_ID(filters)
         STRUCT_FOR_ID(final)
+        STRUCT_FOR_ID(find)
         STRUCT_FOR_ID(find_class)
         STRUCT_FOR_ID(fix_imports)
         STRUCT_FOR_ID(flags)
@@ -575,6 +578,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(n_unnamed_fields)
         STRUCT_FOR_ID(name)
         STRUCT_FOR_ID(name_from)
+        STRUCT_FOR_ID(names)
         STRUCT_FOR_ID(namespace_separator)
         STRUCT_FOR_ID(namespaces)
         STRUCT_FOR_ID(narg)
@@ -617,6 +621,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(pages)
         STRUCT_FOR_ID(parent)
         STRUCT_FOR_ID(password)
+        STRUCT_FOR_ID(pat)
         STRUCT_FOR_ID(path)
         STRUCT_FOR_ID(pattern)
         STRUCT_FOR_ID(peek)
@@ -714,6 +719,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(strict)
         STRUCT_FOR_ID(strict_mode)
         STRUCT_FOR_ID(string)
+        STRUCT_FOR_ID(sub)
         STRUCT_FOR_ID(sub_key)
         STRUCT_FOR_ID(symmetric_difference_update)
         STRUCT_FOR_ID(tabsize)

Lib/fnmatch.py

@@ -70,16 +70,18 @@ def fnmatchcase(name, pat):
     match = _compile_pattern(pat)
     return match(name) is not None
 
-
-def translate(pat):
-    """Translate a shell PATTERN to a regular expression.
-
-    There is no way to quote meta-characters.
-    """
-
-    STAR = object()
-    parts = _translate(pat, STAR, '.')
-    return _join_translated_parts(parts, STAR)
+try:
+    from _fnmatch import translate
+except ImportError:
+    def translate(pat):
+        """Translate a shell PATTERN to a regular expression.
+
+        There is no way to quote meta-characters.
+        """
+
+        STAR = object()
+        parts = _translate(pat, STAR, '.')
+        return _join_translated_parts(parts, STAR)
 
 
 def _translate(pat, STAR, QUESTION_MARK):