Sync contrib/tools/python3 layout with upstream

* Move src/ subdir contents to the top of the layout
* Rename self-written lib -> lib2 to avoid CaseFolding warning from the VCS
* Regenerate contrib/libs/python proxy-headers accordingly
4ccc62ac1511abcf0fed14ccade38e984e088f1e

1 files changed, 47 insertions, 0 deletions

diff --git a/contrib/tools/python3/Include/internal/pycore_bytesobject.h b/contrib/tools/python3/Include/internal/pycore_bytesobject.h
new file mode 100644
index 00000000000..d36fa9569d6
--- /dev/null
+++ b/contrib/tools/python3/Include/internal/pycore_bytesobject.h
@@ -0,0 +1,47 @@
+#ifndef Py_INTERNAL_BYTESOBJECT_H
+#define Py_INTERNAL_BYTESOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef Py_BUILD_CORE
+#  error "this header requires Py_BUILD_CORE define"
+#endif
+
+
+/* Substring Search.
+
+   Returns the index of the first occurrence of
+   a substring ("needle") in a larger text ("haystack").
+   If the needle is not found, return -1.
+   If the needle is found, add offset to the index.
+*/
+
+PyAPI_FUNC(Py_ssize_t)
+_PyBytes_Find(const char *haystack, Py_ssize_t len_haystack,
+              const char *needle, Py_ssize_t len_needle,
+              Py_ssize_t offset);
+
+/* Same as above, but search right-to-left */
+PyAPI_FUNC(Py_ssize_t)
+_PyBytes_ReverseFind(const char *haystack, Py_ssize_t len_haystack,
+                     const char *needle, Py_ssize_t len_needle,
+                     Py_ssize_t offset);
+
+
+/** Helper function to implement the repeat and inplace repeat methods on a buffer
+ *
+ * len_dest is assumed to be an integer multiple of len_src.
+ * If src equals dest, then assume the operation is inplace.
+ *
+ * This method repeately doubles the number of bytes copied to reduce
+ * the number of invocations of memcpy.
+ */
+PyAPI_FUNC(void)
+_PyBytes_Repeat(char* dest, Py_ssize_t len_dest,
+    const char* src, Py_ssize_t len_src);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_INTERNAL_BYTESOBJECT_H */