Some online tool or automation plugin for SublimeText for generating Sphinx RST tables

Solution 1:

Using a CSV list to define a table is possible in ReST without any extra tools (many people don't know that though, including me until recently). You can link to a file or URL as resource, or just provide the text:

.. csv-table:: Frozen Delights!
   :header: "Treat", "Quantity", "Description"
   :widths: 15, 10, 30

   "Albatross", 2.99, "On a stick!"
   "Crunchy Frog", 1.49, "If we took the bones out, it wouldn't be
   crunchy, now would it?"
   "Gannet Ripple", 1.99, "On a stick!"

Creates this table:

Documentation can be found here: http://docutils.sourceforge.net/docs/ref/rst/directives.html#id4

Solution 2:

All right I found something like this http://www.tablesgenerator.com/text_tables

It creates eaxctly what I wanted and you can easily import CSV file, or just copy-paste.