Use Ctrl+C to discard the input in console (#3113)

* Add table with shortcuts
* Add admonition
* Minor fixes

Author: xuniq

doc/reference/interactive_console.rst

@@ -12,14 +12,16 @@ or start :ref:`tarantoolctl <tarantoolctl>` with ``enter``.
 The interactive console is often called the Lua console to distinguish it from the administrative console,
 but in fact it can handle both Lua and SQL input.
 
-The majority of examples in this manual show what users see with the
-interactive console, including the prompt (which can be ``tarantool>``),
-the instruction (which can be a Lua request or an SQL statement),
-and the response (which can be a display in either YAML format or Lua format).
+The majority of examples in this manual show what users see with the interactive console.
+It includes:
+
+*   ``tarantool>`` prompt
+*   instruction (a Lua request or an SQL statement)
+*   response (a display in either YAML or Lua format)
 
 .. code-block:: none
 
-    -- Typical interactive console example with Lua input and YAML output
+    -- Interactive console example with Lua input and YAML output
     tarantool> box.info().replication
     ---
     - 1:
@@ -28,19 +30,22 @@ and the response (which can be a display in either YAML format or Lua format).
         lsn: 0
     ...
 
+.. _interactive_console_input_output:
+
+Interactive console input and output
+------------------------------------
+
 The **input language** can be changed to SQL with ``\set language sql``
 or changed to Lua (the default) with ``\set language lua``.
 
 The **delimiter** can be changed to any character with :samp:`\set delimiter <character>`.
 The default is nothing, which means input does not need to end with a delimiter.
 But a common recommendation is to say ``set delimiter ;`` especially if input is SQL.
 
-.. _interactive_console_output:
-
 The **output format** can be changed to Lua with ``\set output lua``
 or changed to YAML (the default) with ``\set output yaml``.
 
-Ordinarily. output from the console has `YAML format <http://yaml.org/spec>`_.
+Ordinarily, output from the console has `YAML format <http://yaml.org/spec>`_.
 That means that there is a line for document-start ``"---"``,
 and each item begins on a separate line starting with ``"- "``,
 and each sub-item in a nested structure is indented,
@@ -54,7 +59,7 @@ So, when input is a Lua object description, output will equal input.
 
 YAML is good for readability.
 Lua is good for re-using results as requests.
-A third format, MsgPack, is good for database storage.
+The third format, MsgPack, is good for database storage.
 Currently the default output format is YAML but it may be Lua in a future version,
 and it may be Lua if
 the last :ref:`set_default_output <console-set_default_output>`
@@ -120,3 +125,30 @@ call was ``console.set_default_output('lua')``.
                 | :code:`...`
 
             -   :code:`\x81 \xa3 \x6b \x65 \x79 \x01`
+
+.. _interactive_console-shortcuts:
+
+Keyboard shortcuts
+------------------
+
+Since :doc:`2.10.0 </release/2.10.0>`.
+
+..  list-table::
+    :widths: 25 75
+    :header-rows: 1
+
+    *   - Keyboard shortcut
+        - Effect
+
+    *   - ``CTRL+C``
+        - Discard current input with the ``SIGINT`` signal in the console mode and
+          jump to a new line with a default prompt.
+
+    *   - ``CTRL+D``
+        - Quit Tarantool interactive console.
+
+..  important::
+
+    Keep in mind that ``CTRL+C`` shortcut will shut Tarantool down if there is any currently running command
+    in the console.
+    The :ref:`SIGINT <admin-server_signals>` signal stops the instance running in a daemon mode.

doc/reference/reference_lua/console.rst

@@ -215,7 +215,7 @@ Below is a list of all ``console`` functions.
    The output format can be changed within a session by executing
    :samp:`console.eval('\\\\set output {yaml}|{lua}')`; see the
    description of output format in the
-   :ref:`Interactive console <interactive_console_output>` section.
+   :ref:`Interactive console <interactive_console_input_output>` section.
 
 .. _console-eos: