[PD-cvs] pd/extra/expr~ LICENSE.txt, NONE, 1.2.22.2 README.txt, NONE, 1.1.1.1.8.2 fts_to_pd.h, NONE, 1.3.4.2 makefile, NONE, 1.7.4.2 vexp.c, NONE, 1.5.4.2 vexp.h, NONE, 1.4.4.2 vexp_fun.c, NONE, 1.4.4.2 vexp_if.c, NONE, 1.5.4.2

Tim Blechmann timblech at users.sourceforge.net
Sat Jul 16 18:21:11 CEST 2005


Update of /cvsroot/pure-data/pd/extra/expr~
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv21746/expr~

Added Files:
      Tag: devel_0_39
	LICENSE.txt README.txt fts_to_pd.h makefile vexp.c vexp.h 
	vexp_fun.c vexp_if.c 
Log Message:
missing extra files

--- NEW FILE: vexp.c ---
/*
 * jMax
 * Copyright (C) 1994, 1995, 1998, 1999 by IRCAM-Centre Georges Pompidou, Paris, France.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * See file LICENSE for further informations on licensing terms.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
[...2103 lines suppressed...]
                                post("%c", ',');
                                break;
                        case OP_SEMI:
                                post("%c", ';');
                                break;
                        default:
                                post("expr: ex_print: bad op 0x%lx\n", eptr->ex_op);
                        }
                        break;
                default:
                        post("expr: ex_print: bad type 0x%lx\n", eptr->ex_type);
                }
                eptr++;
        }
        post("\n");
}

#ifdef NT
void ABORT( void) {bug("expr");}
#endif

--- NEW FILE: vexp_fun.c ---
/*
 * jMax
 * Copyright (C) 1994, 1995, 1998, 1999 by IRCAM-Centre Georges Pompidou, Paris, France.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * See file LICENSE for further informations on licensing terms.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
[...1276 lines suppressed...]
/*
 * ex_hypoth - Euclidean distance function
 */
FUNC_DEF(ex_hypoth, hypoth, (double), (double), 1);

/*
 * ex_round -  round to nearest integer, away from zero
 */
FUNC_DEF_UNARY(ex_round, round, (double), 1);

/*
 * ex_trunc -  round to interger, towards zero
 */
FUNC_DEF_UNARY(ex_trunc, trunc, (double), 1);

/*
 * ex_nearbyint -  round to nearest integer
 */
FUNC_DEF_UNARY(ex_nearbyint, nearbyint, (double), 1);
#endif

--- NEW FILE: fts_to_pd.h ---
/* fts_to_pd.h -- alias some fts names to compile in Pd.

copyright 1999 Miller Puckette;
permission is granted to use this file for any purpose.
*/


#define fts_malloc malloc
#define fts_calloc calloc
#define fts_free free
#define fts_realloc realloc
#define fts_atom_t t_atom
#define fts_object_t t_object
typedef t_symbol *fts_symbol_t;

#ifdef MSP
#define t_atom          Atom
#define t_symbol        Symbol
#define pd_new(x)       newobject(x);
#define pd_free(x)      freeobject(x);
#define t_outlet        void
#define t_binbuf        void
typedef t_class         *t_pd;
typedef float           t_floatarg;

#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>

void pd_error(void *object, char *fmt, ...);

#endif /* MSP */

#define post_error pd_error
#define fts_is_floatg(x) ((x)->a_type == A_FLOAT)

#define fts_new_symbol_copy gensym

#define fts_symbol_name(x) ((x)->s_name)

--- NEW FILE: LICENSE.txt ---

		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

			    Preamble

  The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it.  (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.)  You can apply it to
your programs, too.

  When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.

  To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

  For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have.  You must make sure that they, too, receive or can get the
source code.  And you must show them these terms so they know their
rights.

  We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

  Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software.  If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.

  Finally, any free program is threatened constantly by software
patents.  We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary.  To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.

  The precise terms and conditions for copying, distribution and
modification follow.

		    GNU GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License.  The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language.  (Hereinafter, translation is included without limitation in
the term "modification".)  Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope.  The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.

  1. You may copy and distribute verbatim copies of the Program's
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notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
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You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

  2. You may modify your copy or copies of the Program or any portion
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    a) You must cause the modified files to carry prominent notices
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    b) You must cause any work that you distribute or publish, that in
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    c) If the modified program normally reads commands interactively
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    the Program is not required to print an announcement.)

These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
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Thus, it is not the intent of this section to claim rights or contest
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In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
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  3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
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    a) Accompany it with the complete corresponding machine-readable
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    b) Accompany it with a written offer, valid for at least three
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The source code for a work means the preferred form of the work for
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If distribution of executable or object code is made by offering
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distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.

  4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License.  Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
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  5. You are not required to accept this License, since you have not
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license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

  8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.

  9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time.  Such new versions will
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			    NO WARRANTY

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		     END OF TERMS AND CONDITIONS

	    How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) 19yy  <name of author>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) 19yy name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into
proprietary programs.  If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library.  If this is what you want to do, use the GNU Library General
Public License instead of this License.

--- NEW FILE: vexp_if.c ---
/*
 * jMax
 * Copyright (C) 1994, 1995, 1998, 1999 by IRCAM-Centre Georges Pompidou, Paris, France.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * See file LICENSE for further informations on licensing terms.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
[...1184 lines suppressed...]
    va_list ap;
    t_int arg[8];
    int i;
    static int saidit = 0;
    va_start(ap, fmt);
/* SDY
    vsprintf(error_string, fmt, ap);
 */ post(fmt, ap);
        va_end(ap);
/* SDY
    fprintf(stderr, "error: %s\n", error_string);
    error_object = object;
*/
    if (!saidit)
    {
        post("... you might be able to track this down from the Find menu.");
        saidit = 1;
    }
}
#endif

--- NEW FILE: makefile ---

current: expr.pd_linux expr~.pd_linux fexpr~.pd_linux \
     ../expr.pd_linux ../expr~.pd_linux ../fexpr~.pd_linux

install: install_linux

clean: clean_linux

clobber: clobber_linux

PDEXTERN=/usr/local/lib/pd/externs

# ----------------------- NT -----------------------

pd_nt: expr.dll

NTOBJ =  vexp.obj vexp_fun.obj vexp_if.obj

PDNTCFLAGS = /W3 /WX /DNT /DPD /nologo
VC="C:\Program Files\Microsoft Visual Studio\Vc98"

PDNTINCLUDE = /I. /I..\..\src /I$(VC)\include

PDNTLDIR = $(VC)\lib
PDNTLIB = $(PDNTLDIR)\libc.lib \
	$(PDNTLDIR)\oldnames.lib \
	$(PDNTLDIR)\kernel32.lib \
	..\..\bin\pd.lib 

.c.obj:
	cl $(PDNTCFLAGS) $(PDNTINCLUDE) /c $*.c

expr.dll: $(NTOBJ)
	link /dll /export:expr_setup /export:expr_tilde_setup \
	    /export:fexpr_tilde_setup $(NTOBJ) $(PDNTLIB)
	ren vexp.dll expr.dll
	copy expr.dll ..\expr.dll
	copy expr.dll ..\expr~.dll
	copy expr.dll ..\fexpr~.dll
	copy help-expr.pd ..\help-expr.pd

# ----------------------- IRIX 5.x -----------------------

pd_irix5: 

.SUFFIXES: .pd_irix5

SGICFLAGS5 = -o32 -DPD -DSGI -O2


SGIINCLUDE =  -I/usr/people/msp/pd/pd/src

.c.pd_irix5:
	$(CC) $(SGICFLAGS5) $(SGIINCLUDE) -o $*.o -c $*.c
	ld -elf -shared -rdata_shared -o $*.pd_irix5 $*.o
	rm $*.o

# ----------------------- IRIX 6.x -----------------------

pd_irix6: 

.SUFFIXES: .pd_irix6

SGICFLAGS6 = -DPD -DSGI -n32 \
	-OPT:roundoff=3 -OPT:IEEE_arithmetic=3 -OPT:cray_ivdep=true \
	-Ofast=ip32

SGICFLAGS5 = -DPD -O2 -DSGI

SGIINCLUDE =  -I/usr/people/msp/pd/pd/src

.c.pd_irix6:
	$(CC) $(SGICFLAGS6) $(SGIINCLUDE) -o $*.o -c $*.c
	ld -elf -shared -rdata_shared -o $*.pd_irix6 $*.o
	rm $*.o

# ----------------------- LINUX i386 -----------------------

LINUXOBJ =  vexp.pd_linux_o vexp_fun.pd_linux_o vexp_if.pd_linux_o
.SUFFIXES: .pd_linux_o

LINUXCFLAGS = -DPD -O2 -funroll-loops -fomit-frame-pointer -fPIC \
    -Wall -W -Wshadow -Wstrict-prototypes \
    -Wno-unused -Wno-parentheses -Wno-switch 

LINUXINCLUDE =  -I../../src

.c.pd_linux_o:
	$(CC) -g $(LINUXCFLAGS) $(LINUXINCLUDE) -o $*.pd_linux_o -c $*.c

expr.pd_linux: $(LINUXOBJ)
	ld -export_dynamic  -shared -o expr.pd_linux $(LINUXOBJ) -lc -lm
	strip --strip-unneeded expr.pd_linux

expr~.pd_linux: expr.pd_linux
	-ln -s expr.pd_linux expr~.pd_linux

fexpr~.pd_linux: expr.pd_linux
	-ln -s expr.pd_linux fexpr~.pd_linux

../expr.pd_linux: expr.pd_linux
	-ln -s expr~/expr.pd_linux ../expr.pd_linux

../expr~.pd_linux: expr.pd_linux
	-ln -s expr~/expr.pd_linux ../expr~.pd_linux

../fexpr~.pd_linux: expr.pd_linux
	-ln -s expr~/expr.pd_linux ../fexpr~.pd_linux

install_linux:
	install expr.pd_linux $(PDEXTERN)
	rm -f $(PDEXTERN)/expr~.pd_linux
	rm -f $(PDEXTERN)/fexpr~.pd_linux
	cd $(PDEXTERN); \
	-ln -s expr.pd_linux expr~.pd_linux
	-ln -s expr.pd_linux fexpr~.pd_linux


linux_clean:
	rm -f *.pd_linux_o *.o

linux_clobber: clean
	rm -f expr.pd_linux

# ----------------------- MAC OSX -----------------------

pd_darwin: expr.pd_darwin expr~.pd_darwin fexpr~.pd_darwin
MACOSXOBJ =  vexp.pd_darwin_o vexp_fun.pd_darwin_o vexp_if.pd_darwin_o
.SUFFIXES: .pd_darwin_o

MACOSXCFLAGS = -DMACOSX -DPD -O2 -Wall -W -Wshadow -Wstrict-prototypes \
    -Wno-unused -Wno-parentheses -Wno-switch

MACOSXINCLUDE =  -I../../src

.c.pd_darwin_o:
	$(CC) -g $(MACOSXCFLAGS) $(MACOSXINCLUDE) -o $*.pd_darwin_o -c $*.c

expr.pd_darwin: $(MACOSXOBJ)
	$(CC) -bundle -undefined suppress  -flat_namespace \
		-o expr.pd_darwin $(MACOSXOBJ)  -lm
	rm -f ../expr.pd_darwin
	-ln -s expr~/expr.pd_darwin ..

expr~.pd_darwin: expr.pd_darwin
	-ln -s expr.pd_darwin expr~.pd_darwin
	rm -f ../expr~.pd_darwin
	-ln -s expr~/expr~.pd_darwin ..

fexpr~.pd_darwin: expr.pd_darwin
	-ln -s expr.pd_darwin fexpr~.pd_darwin
	rm -f ../fexpr~.pd_darwin
	-ln -s expr~/fexpr~.pd_darwin ..

install_darwin:
	install expr.pd_darwin $(PDEXTERN)
	rm -f $(PDEXTERN)/expr~.pd_darwin
	rm -f $(PDEXTERN)/fexpr~.pd_darwin
	cd $(PDEXTERN); \
	-ln -s expr.pd_darwin expr~.pd_darwin; \
	-ln -s expr.pd_darwin fexpr~.pd_darwin

darwin_clean:
	rm -f *.pd_darwin_o *.o

darwin_clobber: clean
	rm -f expr.pd_darwin


--- NEW FILE: README.txt ---

You can get more information on the expr object at
http://www.crca.ucsd.edu/~yadegari/expr.html

-----------

New if Version 0.4

-access to variables (made by value object)
-multiple expression separated by ;
-added the following shorthands:
	$y or $y1 = $y1[-1] and $y2 = $y2[-1]
-new functions:
	if - conditional evaluation
	cbrt - cube root
	erf - error function
	erfc - complementary error function
	expm1 - exponential minus 1,
	log1p - logarithm of 1 plus
	isinf - is the value infinite,
	finite - is the value finite
	isnan -- is the resut a nan (Not a number)
	copysign - copy sign of a number
	ldexp  -  multiply floating-point number by integral power of 2
	imodf -	get signed integral value from floating-point number
	modf - get signed fractional value from floating-point number
	drem - floating-point remainder function

   Thanks to Orm Finnendahl for adding the following functions:
	fmod - floating-point remainder function
	ceil - ceiling function: smallest integral value not less than argument 
	floor - largest integral value not greater than argument

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

New in Version 0.3
-Full function functionality

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

The object "expr" is used for expression evaluaion of control data.

Expr~ and fexpr~ are extentions to the expr object to work with vectors.
The expr~ object is designed to efficiently combine signal and control
stream processing by vector operations on the basis of the block size of
the environment.

fexpr~ object provides a flexible mechanism for building FIR and
IIR filters by evaluating expressions on a sample by sample basis
and providing access to prior samples of the input and output audio
streams. When fractional offset is used, fexpr~ uses linear interpolation
to determine the value of the indexed sample. fexpr~ evaluates the
expression for every single sample and at every evaluation previous
samples (limited by the audio vector size) can be accessed. $x is used to
denote a singnal input whose samples we would like to access. The syntax
is $x followed by the inlet number and indexed by brackets, for example
$x1[-1] specifies the previous sample of the first inlet. Therefore,
if we are to build a simple filter which replaces every sample by
the average of that sample and its previous one, we would use "fexpr~
($x1[0]+$x1[-1])/2 ". For ease of when the brackets are omitted, the
current sample is implied, so we can right the previous filter expression
as follows:  " fexpr~ ($x1+$x1[-1])/2". To build IIR filters $y is used
to access the previous samples of the output stream.

The three objects expr, expr~, and fexpr~ are implemented in the same object
so the files expr~.pd_linux and fexpr~.pd_linux are links to expr.pd_linux
This release has been compiled and tested on Linux 6.0.

--------

Here are some syntax information: (refer to help-expr.pd for examples)
 
Syntyax:
The syntax is very close to how expression are written in
C. Variables are specified as follows where the '#' stands
for the inlet number:
$i#: integer input variable
$f#: float input variable
$s#: symbol input variable

Used for expr~ only:
$v#: signal (vector) input (vector by vector evaluation)

Used for fexpr~ only:
$x#[n]: the sample from inlet # indexed by n, where n has to
	satisfy 0 => n >= -vector size,
	($x# is a shorthand for $x#[0], specifying the current sample)

$y#[n]: the output value indexed by n, where n has to
	satisfy 0 > n >= -vector size,
	$y[n] is a shorthand for $y1[n]


I'll appreciate hearing about bugs, comments, suggestions, ...

Shahrokh Yadegari (sdy at ucsd.edu)
7/10/02

--- NEW FILE: vexp.h ---
/*
 * jMax
 * Copyright (C) 1994, 1995, 1998, 1999 by IRCAM-Centre Georges Pompidou, Paris, France.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * See file LICENSE for further informations on licensing terms.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * Based on Max/ISPW by Miller Puckette.
 *
 * Authors: Maurizio De Cecco, Francois Dechelle, Enzo Maggi, Norbert Schnell.
 *
 */

/* "expr" was written by Shahrokh Yadegari c. 1989. -msp */
/* "expr~" and "fexpr~" conversion by Shahrokh Yadegari c. 1999,2000 */

#define MSP
#ifdef PD
#undef MSP
#endif

#ifdef PD
#include "m_pd.h"
#else /* MSP */
#include "ext.h"
#include "z_dsp.h"
#endif

#include "fts_to_pd.h"
/* This is put in fts_to_pd.h

#ifdef MSP
#define t_atom  Atom
#define t_symbol Symbol
#define pd_new(x)       newobject(x);
#define t_outlet void
#endif
*/

/*
 * Currently the maximum number of variables (inlets) that are supported
 * is 10.
 */

#define MAX_VARS        9
#define MINODES         10 /* was 200 */

/* terminal defines */

/*
 * operations
 * (x<<16|y) x defines the level of precedence,
 * the lower the number the lower the precedence
 * separators are defines as operators just for convenience
 */

#define OP_SEMI         ((long)(1<<16|1))               /* ; */
#define OP_COMMA        ((long)(2<<16|2))               /* , */
#define OP_LOR          ((long)(3<<16|3))               /* || */
#define OP_LAND         ((long)(4<<16|4))               /* && */
#define OP_OR           ((long)(5<<16|5))               /* | */
#define OP_XOR          ((long)(6<<16|6))               /* ^ */
#define OP_AND          ((long)(7<<16|7))               /* & */
#define OP_NE           ((long)(8<<16|8))               /* != */
#define OP_EQ           ((long)(8<<16|9))               /* == */
#define OP_GE           ((long)(9<<16|10))              /* >= */
#define OP_GT           ((long)(9<<16|11))              /* > */
#define OP_LE           ((long)(9<<16|12))              /* <= */
#define OP_LT           ((long)(9<<16|13))              /* < */
#define OP_SR           ((long)(10<<16|14))             /* >> */
#define OP_SL           ((long)(10<<16|15))             /* << */
#define OP_SUB          ((long)(11<<16|16))             /* - */
#define OP_ADD          ((long)(11<<16|17))             /* + */
#define OP_MOD          ((long)(12<<16|18))             /* % */
#define OP_DIV          ((long)(12<<16|19))             /* / */
#define OP_MUL          ((long)(12<<16|20))             /* * */
#define OP_UMINUS       ((long)(13<<16|21))             /* - unary minus */
#define OP_NEG          ((long)(13<<16|22))             /* ~ one complement */
#define OP_NOT          ((long)(13<<16|23))             /* ! */
#define OP_RB           ((long)(14<<16|24))             /* ] */
#define OP_LB           ((long)(14<<16|25))             /* [ */
#define OP_RP           ((long)(14<<16|26))             /* ) */
#define OP_LP           ((long)(14<<16|27))             /* ( */
#define OP_STORE        ((long)(15<<16|28))             /* = */
#define HI_PRE          ((long)(100<<16))       /* infinite precedence */
#define PRE_MASK        ((long)0xffff0000)      /* precedence level mask */

struct ex_ex;

#define name_ok(c)      (((c)=='_') || ((c)>='a' && (c)<='z') || \
                        ((c)>='A' && (c)<='Z') || ((c) >= '0' && (c) <= '9'))
#define unary_op(x)     ((x) == OP_NOT || (x) == OP_NEG || (x) == OP_UMINUS)

struct ex_ex {
        union {
                long v_int;
                float v_flt;
                t_float *v_vec;         /* this is an for allocated vector */
                long op;
                char *ptr;
        } ex_cont;              /* content */
#define ex_int          ex_cont.v_int
#define ex_flt          ex_cont.v_flt
#define ex_vec          ex_cont.v_vec
#define ex_op           ex_cont.op
#define ex_ptr          ex_cont.ptr
        long ex_type;           /* type of the node */
};
#define exNULL  ((struct ex_ex *)0)

/* defines for ex_type */
#define ET_INT          1               /* an int */
#define ET_FLT          2               /* a float */
#define ET_OP           3               /* operator */
#define ET_STR          4               /* string */
#define ET_TBL          5               /* a table, the content is a pointer */
#define ET_FUNC         6               /* a function */
#define ET_SYM          7               /* symbol ("string") */
#define ET_VSYM         8               /* variable symbol ("$s?") */
                                /* we treat parenthesis and brackets */
                                /* special to keep a pointer to their */
                                /* match in the content */
#define ET_LP           9               /* left parenthesis */
#define ET_LB           10              /* left bracket */
#define ET_II           11              /* and integer inlet */
#define ET_FI           12              /* float inlet */
#define ET_SI           13              /* string inlet */
#define ET_VI           14              /* signal inlet */
#define ET_VEC          15              /* allocated signal vector */
                                /* special types for fexpr~ */
#define ET_YO           16              /* vector output for fexpr~ */
#define ET_YOM1         17              /* shorthand for $y?[-1] */
#define ET_XI           18              /* vector input for fexpr~ */
#define ET_XI0          20              /* shorthand for $x?[0] */
#define ET_VAR          21              /* variable */

/* defines for ex_flags */
#define EF_TYPE_MASK    0x07    /* first three bits define the type of expr */
#define EF_EXPR         0x01    /* expr  - control in and out */
#define EF_EXPR_TILDE   0x02    /* expr~ signal and control in, signal out */
#define EF_FEXPR_TILDE  0x04    /* fexpr~ filter expression */

#define EF_STOP         0x08    /* is it stopped used for expr~ and fexpr~ */
#define EF_VERBOSE      0x10    /* verbose mode */

#define IS_EXPR(x)        ((((x)->exp_flags&EF_TYPE_MASK)|EF_EXPR) == EF_EXPR)
#define IS_EXPR_TILDE(x)  \
                 ((((x)->exp_flags&EF_TYPE_MASK)|EF_EXPR_TILDE)==EF_EXPR_TILDE)
#define IS_FEXPR_TILDE(x) \
               ((((x)->exp_flags&EF_TYPE_MASK)|EF_FEXPR_TILDE)==EF_FEXPR_TILDE)

#define SET_EXPR(x)     (x)->exp_flags |= EF_EXPR; \
                        (x)->exp_flags &= ~EF_EXPR_TILDE;  \
                        (x)->exp_flags &= ~EF_FEXPR_TILDE; 

#define SET_EXPR_TILDE(x)       (x)->exp_flags &= ~EF_EXPR; \
                                (x)->exp_flags |= EF_EXPR_TILDE;  \
                                (x)->exp_flags &= ~EF_FEXPR_TILDE; 

#define SET_FEXPR_TILDE(x)      (x)->exp_flags &= ~EF_EXPR; \
                                (x)->exp_flags &= ~EF_EXPR_TILDE;  \
                                (x)->exp_flags |= EF_FEXPR_TILDE; 

/*
 * defines for expr_error
 */
#define EE_DZ           0x01    /* divide by zero error */
#define EE_BI_OUTPUT    0x02    /* Bad output index */
#define EE_BI_INPUT     0x04    /* Bad input index */
#define EE_NOTABLE      0x08    /* NO TABLE */
#define EE_NOVAR        0x10    /* NO VARIABLE */

typedef struct expr {
#ifdef PD
        t_object exp_ob;
#else /* MSP */
        t_pxobject exp_ob;
#endif
        int     exp_flags;              /* are we expr~, fexpr~, or expr */
        int     exp_error;              /* reported errors */
        int     exp_nexpr;              /* number of expressions */
        char    *exp_string;            /* the full expression string */
        char    *exp_str;               /* current parsing position */
        t_outlet *exp_outlet[MAX_VARS];
#ifdef PD
        struct _exprproxy *exp_proxy;
#else /* MAX */
        void *exp_proxy[MAX_VARS];
        long exp_proxy_id;
#endif
        struct ex_ex *exp_stack[MAX_VARS];
        struct ex_ex exp_var[MAX_VARS];
        struct ex_ex exp_res[MAX_VARS]; /* the evluation result */
        t_float *exp_p_var[MAX_VARS];
        t_float *exp_p_res[MAX_VARS];   /* the previous evaluation result */
        t_float *exp_tmpres[MAX_VARS];          /* temporty result for fexpr~ */
        int exp_vsize;                  /* the size of the signal vector */
        int exp_nivec;                  /* # of vector inlets */
        float exp_f;            /* control value to be transformed to signal */
} t_expr;

typedef struct ex_funcs {
        char *f_name;                                   /* function name */
        void (*f_func)(t_expr *, long, struct ex_ex *, struct ex_ex *);
          /* the real function performing the function (void, no return!!!) */
        long f_argc;                            /* number of arguments */
} t_ex_func;

/* function prototypes for pd-related functions called withing vexp.h */

extern int max_ex_tab(struct expr *expr, t_symbol *s, struct ex_ex *arg, struct ex_ex *optr);
extern int max_ex_var(struct expr *expr, t_symbol *s, struct ex_ex *optr);
extern int ex_getsym(char *p, t_symbol **s);
extern const char *ex_symname(t_symbol *s);
void ex_mkvector(t_float *fp, t_float x, int size);
extern void ex_size(t_expr *expr, long int argc, struct ex_ex *argv,
                                                        struct ex_ex *optr);
extern void ex_sum(t_expr *expr, long int argc, struct ex_ex *argv,                                                                     struct ex_ex *optr);
extern void ex_Sum(t_expr *expr, long int argc, struct ex_ex *argv,                                                                     struct ex_ex *optr);
extern void ex_avg(t_expr *expr, long int argc, struct ex_ex *argv,                                                                     struct ex_ex *optr);
extern void ex_Avg(t_expr *expr, long int argc, struct ex_ex *argv,                                                                     struct ex_ex *optr);
extern void ex_store(t_expr *expr, long int argc, struct ex_ex *argv,                                                                   struct ex_ex *optr);

int value_getonly(t_symbol *s, t_float *f);

#ifdef NT
#pragma warning (disable: 4305 4244)

#define abort ABORT
void ABORT(void);
#endif





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