[XEN PATCH 1/2] docs/misra: add Terms & Definitions section to rules.rst

[Federico Serafini <federico.serafini@xxxxxxxxxxx>]

Add a section for terms and definitions used by MISRA but expressed
in terms of the C specification.

Add a definition of "switch clause" to the newly-introduced section.

Link the first use of the term "switch clause" in the document to its
definition.

Suggested-by: Jan Beulich <jbeulich@xxxxxxxx>
Signed-off-by: Federico Serafini <federico.serafini@xxxxxxxxxxx>
---
Jan you were not completely satisfied by the definition but I didn't find
a better one.
---
 docs/misra/rules.rst | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/docs/misra/rules.rst b/docs/misra/rules.rst
index b7b447e152..d3b70fdf04 100644
--- a/docs/misra/rules.rst
+++ b/docs/misra/rules.rst
@@ -489,8 +489,7 @@ maintainers if you want to suggest a change.
 
    * - `Rule 16.3 
<https://gitlab.com/MISRA/MISRA-C/MISRA-C-2012/Example-Suite/-/blob/master/R_16_03.c>`_
      - Required
-     - An unconditional break statement shall terminate every
-       switch-clause
+     - An unconditional break statement shall terminate every switch-clause_
      - In addition to break, also other unconditional flow control statements
        such as continue, return, goto are allowed.
 
@@ -712,3 +711,14 @@ maintainers if you want to suggest a change.
      - The value of a pointer to a FILE shall not be used after the associated
        stream has been closed
      -
+
+Terms & Definitions
+-------------------
+
+.. _switch-clause:
+
+A *switch clause* can be defined as:
+"the non-empty list of statements which follows a non-empty list of
+case/default labels".
+A formal definition is available within the amplification of MISRA C:2012
+Rule 16.1.
-- 
2.34.1