REGEX notation
===============

Certainly! If you want to substitute ```anyString``` with ````anyString```` using a regular expression (REGEX), you can use the following pattern:

REGEX Pattern
-------------
.. code-block:: text

   `([^`]+)`

Replacement
-------------
.. code-block:: text

   ``$1``

Explanation
-----------
- ```([^`]+)```: This pattern matches any string enclosed in backticks.
- `````: Matches the opening backtick.
- ``([^`]+)``: Captures any sequence of characters that are not backticks.
- `````: Matches the closing backtick.
- ````$1````: This replacement string wraps the captured group (``$1``) in double backticks.

Example
---------
If you have the following text:

.. code-block:: text

   This is a `test` string with `multiple` backtick-enclosed `words`.

After applying the substitution, it will become:

.. code-block:: text

   This is a ``test`` string with ``multiple`` backtick-enclosed ``words``.

Usage in Different Environments
---------------------------------
- **Python**:

  .. code-block:: python

     import re
     text = "This is a `test` string with `multiple` backtick-enclosed `words`."
     result = re.sub(r'`([^`]+)`', r'``\1``', text)
     print(result)

- **JavaScript**:

  .. code-block:: javascript

     let text = "This is a `test` string with `multiple` backtick-enclosed `words`.";
     let result = text.replace(/`([^`]+)`/g, '``$1``');
     console.log(result);

- **sed (Unix/Linux)**:

  .. code-block:: bash

     echo "This is a `test` string with `multiple` backtick-enclosed `words`." | sed 's/`\([^`]\+\)`/``\1``/g'

This REGEX will work in most environments where REGEX is supported.
**note**: see python script ``replacerTics.py``.