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From: Gary <emacs-orgmode@garydjones.name>
To: emacs-orgmode@gnu.org
Subject: Re: From state table to state diagram
Date: Thu, 23 Sep 2010 17:02:13 +0200	[thread overview]
Message-ID: <i7fq5l$p6k$1@dough.gmane.org> (raw)
In-Reply-To: <878w3vedfz.fsf@gmail.com>

Sorry, I've been rather lax on this :( I got dragged onto other stuff,
went on training courses, and all sorts of other things.

Eric Schulte wrote:
> Babel does support generating diagrams with graphviz via "dot" code
> blocks.  Babel is also capable of converting Org-mode tables to list
> objects in a number of languages, so I'd recommend writing a table->dot
> script in your favorite language, and then using babel to handle the
> coordination and Org-mode integration.

That's all very easy for you to say :))

> I'm happy to help in this regard, the first step would be something like
> the following example which assumes python is your preferred scripting
> language (as you can see I have no idea what your state table may look
> like)...

Well, wikipedia suggests the following[1] (and goes into further detail
as well[2])
    | Current State -> | State | State | State |
    | Input   v        |   A   |   B   |   C   |
    |------------------+-------+-------+-------|
    | x                |   B   | ...   | ...   |
    | y                | ...   |   C   | ...   |
which basically says that when the machine is in State A and receives
'x' then it transitions to State B, and when it receives a 'y' in State
B it transitions to State C.

> #+results: state-table
> | 1 | 2 |
> | 3 | 4 |
>
> #+source: table-to-dot
> #+begin_src python :var table=state-table
>   python code here

Okay. What should this python code here do? :) I know, it converts a
table to dot-script, but are there any examples I could look at which
take a table as input and output something (anything), just so I can see
how the python code should expect its input?

> #+end_src
>
> #+begin_src dot :var text=table-to-dot(table=state-table)
>   graph{
>     $text
>   }
> #+end_src
>
> Once this is working I think it could make a great addition to the
> library of babel [1] (a collection of generally useful code blocks).

Sure :)

[1] http://en.wikipedia.org/wiki/Finite-state_machine#Concepts_and_vocabulary
[2] http://en.wikipedia.org/wiki/State_transition_table

  reply	other threads:[~2010-09-24  8:10 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-24 10:38 Gary
2010-08-24 11:03 ` Eric S Fraga
2010-08-24 11:24   ` Gary
2010-08-24 11:25   ` Eric S Fraga
2010-08-24 12:06     ` Gary
2010-08-24 23:28       ` Eric S Fraga
2010-08-25  0:33       ` Eric Schulte
2010-09-23 15:02         ` Gary [this message]
2010-09-24 10:00           ` Dan Davison
2010-09-25  7:40           ` Rainer M Krug
2010-09-27  6:27             ` Gary
2010-09-27 15:21               ` Mark Elston
2010-09-28 14:04               ` Rainer M Krug
2010-11-24  1:25                 ` Vladimir Alexiev

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