.. highlightlang:: us

.. _source:

source
======

.. index:: source

.. us.tag  source NOTREADYENGLISH Programming.Symboltable Programming.Debug New330

:ref:`source` returns the file name in which the function is located.

.. function::  ssFileName = source(ssFuncName)

.. us.return

**Return Value**

*ssFileName* is the file name in which the function is defined or an empty
string if the file name is unknown. If the file is found in the UniScript search path and the
file the the extension .ic the complete file name is returned. If not found the name
without extension is returned.

.. us.params

**Parameters**

.. uparam:: ssFuncName

   *ssFuncName* is a function name.

.. us.example

**Example**

::

   * source("len")
   c:\uniplot\script\MATRIX.ic

.. seealso::
   :ref:`overview-programming`

:sub:`id-1495242`