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.. _hoc_ropen:
Open and Write to Files (Obsolete)
----------------------------------
.. hoc:function:: ropen
Syntax:
``ropen("infile")``
``ropen()``
Description:
``Ropen()`` opens *infile* for reading. A subsequent ``ropen()`` with no arguments
closes the previously opened *infile*. A file which is re-opened with
``ropen(infile)`` positions the stream at the beginning of the file.
Example:
.. code-block::
none
proc r() {
ropen("file.dat")
for (i=0; i<ndat; i=i+1) {
x[i] = fscan() y[i]=fscan()
}
ropen()
}
Diagnostics:
This function returns 0 if the file is not successfully opened.
.. seealso::
:ref:`read <hoc_keyword_read>`, :hoc:func:`fscan`, :hoc:func:`getstr`, :hoc:class:`File`
.. warning::
There is no way to open more than one read file at a time. The same is
true for write files.
----
.. hoc:function:: wopen
Syntax:
``wopen("outfile)``
``wopen()``
Description:
``Wopen`` is similar to ``ropen`` but opens a file for writing. Contents of an
already existing *outfile* are destroyed. Wopened files are written to
with :hoc:func:`fprint`. With no argument, the previously wopened file is closed.
Wopen returns 0 on failure to open a file.
Example:
.. code-block::
none
proc w() {
wopen("file.dat")
for (i=0; i<ndat; i=i+1) {
fprint("%g %g\n", x[i], y[i])
}
wopen()
}
.. seealso::
:hoc:func:`fprint`, :hoc:func:`File`
----
.. hoc:function:: xopen
Syntax:
``xopen("hocfile")``
``xopen("hocfile", "RCSrevision")``
Description:
``Xopen()`` executes the commands in ``hocfile``. This is a convenient way
to define user functions and procedures.
An optional second argument is the RCS revision number in the form of a
string. The RCS file with that revision number is checked out into a
temporary file and executed. The temporary file is then removed. A file
of the same primary name is unaffected.
----
.. hoc:function:: fprint
Same as :hoc:func:`printf` but prints to a file opened with :hoc:func:`wopen`. If no file
is opened it prints to the standard output.
|
