Re: Octsympy question

[Colin Macdonald]

Hi Andrés,

I have also replied to the Octave-maintainers mailing list.  Hope that's
ok!  See below.

On 25/11/14 10:35, Andrés Prieto wrote:
>     Since we need to use "octsympy" in Linux and Windows platforms, we have 
> modified the code of file "private/python_header.py" (and subsequently 
> "private/python_header.m" ) to avoid the encoding UTF8 problem in Windows 
> (https://github.com/cbm755/octsympy/issues/83) and always use the pretty 
> print 
> command using ASCII characters.
> 
> In addition, to keep as simple as possible the output in the Octave command 
> window, we'd like to avoid the print of those strings with technical 
> information. For instance:
>  >> f= sin(x/2)
> f=(sym)     "sin(Mul(Rational(1, 2), Symbol('x')))"
> 
>    How could we modify the source code to avoid that kind of output in the 
> command window? Thanks in advance for your answer. Any indication will be 
> welcomed.

I think the easiest way to accomplish both these is to modify sympref.m,
as below.  Then no need to modify the python_header stuff.

----------------------------------

diff --git a/inst/sympref.m b/inst/sympref.m
index 955e710..54e1dc4 100644
--- a/inst/sympref.m
+++ b/inst/sympref.m
@@ -110,8 +110,8 @@ function varargout = sympref(cmd, arg)
     case 'defaults'
       settings = [];
       settings.ipc = 'default';
-      settings.display = 'unicode';
-      settings.snippet = true;
+      settings.display = 'ascii';
+      settings.snippet = false;
       settings.whichpython = '';

     case 'version'

-----------------------------------

Probably I should change the default for "snippets" soonish.

More comments in a later email.

Colin

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