micropython: add micropython component

components/language/micropython/docs/library/struct.rst

@@ -0,0 +1,47 @@
+:mod:`struct` -- pack and unpack primitive data types
+=====================================================
+
+.. module:: struct
+   :synopsis: pack and unpack primitive data types
+
+|see_cpython_module| :mod:`python:struct`.
+
+Supported size/byte order prefixes: ``@``, ``<``, ``>``, ``!``.
+
+Supported format codes: ``b``, ``B``, ``h``, ``H``, ``i``, ``I``, ``l``,
+``L``, ``q``, ``Q``, ``s``, ``P``, ``f``, ``d`` (the latter 2 depending
+on the floating-point support).
+
+.. admonition:: Difference to CPython
+   :class: attention
+
+   Whitespace is not supported in format strings.
+
+Functions
+---------
+
+.. function:: calcsize(fmt)
+
+   Return the number of bytes needed to store the given *fmt*.
+
+.. function:: pack(fmt, v1, v2, ...)
+
+   Pack the values *v1*, *v2*, ... according to the format string *fmt*.
+   The return value is a bytes object encoding the values.
+
+.. function:: pack_into(fmt, buffer, offset, v1, v2, ...)
+
+   Pack the values *v1*, *v2*, ... according to the format string *fmt*
+   into a *buffer* starting at *offset*. *offset* may be negative to count
+   from the end of *buffer*.
+
+.. function:: unpack(fmt, data)
+
+   Unpack from the *data* according to the format string *fmt*.
+   The return value is a tuple of the unpacked values.
+
+.. function:: unpack_from(fmt, data, offset=0, /)
+
+   Unpack from the *data* starting at *offset* according to the format string
+   *fmt*. *offset* may be negative to count from the end of *buffer*. The return
+   value is a tuple of the unpacked values.