About M2SCI tools

Generally speaking about tools to convert Matlab files to Scilab

Description

Scilab includes useful tools to convert Matlab M-files to Scilab.

Taking a Matlab M-file, mfile2sci modifies this files so that it can be compiled by Scilab. After that this compiled code is converted to a “tree” of instructions by macr2tree. This “tree” is an imbrication of Scilab lists and tlists and is the basis for conversion. Each instruction of this “tree” is converted to Scilab and inference is done to known what are the variables. Once this “tree” is converted to Scilab, code is generated using tree2code.

All tlists used for coding this tree (and we call “MSCI tlists”) are listed below:

• :funcall tlist representing a function call created by Funcall : :operation tlist representing an operation created by Operation : :variable tlist representing a variable created by Variable : :cste tlist representing a constant created by Cste : :equal tlist representing an instruction created by Equal : :ifthenelse tlist representing an IF/THEN/ELSE control instruction

  created inside M2SCI kernel functions

  : :while tlist representing a WHILE control instruction created inside

  M2SCI kernel functions

  : :selectcase tlist representing a SELECT/CASE control instruction

  created inside M2SCI kernel functions

  : :for tlist representing a FOR control instruction created inside

  M2SCI kernel functions

  :

The contents of these tlists is described in corresponding help pages.

Operations are converted using a fonction named %<opcode>2sci with opcode the Scilab code for this operator. See help page for overloading to have these codes. All these functions are already written and are in directory SCI/modules/m2sci/macros/percent/.

Function calls are converted using a function called sci_<Matlab_function_name>. Some of these functions have been written and are in directory SCI/modules/m2sci/macros/sci_files/. We are working on increasing the set of Matlab functions converted. However, everybody can written such functions using help page sci_files.

Inference is done using tlists of type “infer” containing fields:

• :dims list of dimensions : :type “type” tlist : :contents “contents” tlist if a Cell or a Struct :

Type is a tlist of type “type” containing fields:

• :vtype data type : :property property :

To have more details about inference see help page for m2scideclare.

See Also

• mfile2sci Matlab M-file to Scilab conversion function
• translatepaths convert a set of Matlab M-files directories to Scilab
• overloading display, functions and operators overloading capabilities
• sci_files How to write conversion functions
• Funcall Create a tree representing a function call
• Operation Create a tree representing an operation
• Variable Create a tree representing a variable
• Cste Create a tree representing a constant
• Infer Create a tree containing inference data
• Type Create a tree containing type inference data
• Equal Create a tree representing an instruction
• m2scideclare Giving tips to help M2SCI...