Is it possible to intercept a matlab save() bytestream

Question

In matlab it is possible to write matlab objects, or even the entire workspace, to a file using the matlab save() call. I would like to intercept the bytestream and postproc

Answer 1

I am also interested on this problem. I found some things, but nothing works:

• matlab save stdio you find this hidden feature, but it doesn't work
• engGetArray/engPutArray "This routine allows you to copy a variable out of the workspace."

Look at MAT files specification, maybe we can reproduce matlab serialization with a Mex file:

• http://www.eiscat.se/groups/Documentation/UserGuides/matlab4.pdf

Update:

I found something very interesting: run in Matlab console this command

edit([matlabroot '/extern/examples/eng_mat/matcreat.c']);

or this

edit([matlabroot '/extern/examples/eng_mat/matcreat.cpp']);

This is the documentation, how to compile it: http://www.mathworks.com/help/techdoc/matlab_external/f14500.html

In my opinion it should be feasible to use STDOUT in pmat = matOpen(file, "w"); command.