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/* -*- Mode: C -*- */
/*=============================================================================*\
* File: any2string_static.c
* Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
* Description: convert pd messages to strings (static buffer allocation)
*
* Copyright (c) 2004 - 2007 Bryan Jurish.
*
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file "COPYING", in this distribution.
*
* 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.
*=============================================================================*/
#include <string.h>
#include <stdio.h>
#include <m_pd.h>
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/* black magic */
#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
/*--------------------------------------------------------------------
* DEBUG
*--------------------------------------------------------------------*/
/*#define ANY2STRING_DEBUG 1*/
/*#undef ANY2STRING_DEBUG*/
#ifdef ANY2STRING_DEBUG
# define A2SDEBUG(x) x
#else
# define A2SDEBUG(x)
#endif
#define ANY2STRING_DEFAULT_BUFLEN 512
/*=====================================================================
* Structures and Types: any2string
*=====================================================================*/
static t_class *any2string_class;
typedef struct _any2string
{
t_object x_obj;
int x_alloc; //-- buffer size (text, x_argv)
int x_argc; //-- current number of atoms to outlet
t_atom *x_argv; //-- float-list to outlet
t_outlet *x_outlet; //-- outlet
} t_any2string;
/*=====================================================================
* Utilities
*=====================================================================*/
/*--------------------------------------------------------------------
* append_string
*/
static void any2string_append_string(t_any2string *x, char *s, unsigned int maxlen, int doescape)
{
char *sp;
char *ep = s+maxlen;
for (sp=s; *sp && sp<ep && *sp && x->x_argc<x->x_alloc; sp++, x->x_argc++) {
if (doescape && (*sp==';' || *sp==',' || *sp=='\\'
|| (*sp == '$' && sp<(ep-1) && sp[1] >= '0' && sp[1] <= '9')))
{
A2SDEBUG(post("any2string_append_string: ESCAPE: x_argv[%d] = '%c' = %d", x->x_argc, '\\', '\\'));
x->x_argv[x->x_argc++].a_w.w_float = '\\';
if (x->x_argc >= x->x_alloc) break;
}
A2SDEBUG(post("any2string_append_string: x_argv[%d] = '%c' = %d", x->x_argc, *sp, *sp));
x->x_argv[x->x_argc].a_w.w_float = *sp;
}
}
/*--------------------------------------------------------------------
* append_atom
*/
#define ANY2STRING_APPEND_BUFSIZE 30
static void any2string_append_atom(t_any2string *x, t_atom *a)
{
char buf[ANY2STRING_APPEND_BUFSIZE];
A2SDEBUG(post("~~ any2string_append_atom(%p,...) ~~", x));
if (x->x_argc >= x->x_alloc) { return; }
/*-- stringify a single atom (inspired by atom_string() from m_atom.c) --*/
switch (a->a_type) {
case A_SEMI: any2string_append_string(x, ";", 1, 0); break;
case A_COMMA: any2string_append_string(x, ",", 1, 0); break;
case A_POINTER: any2string_append_string(x, "(pointer)", 9, 0); break;
case A_FLOAT:
snprintf(buf, ANY2STRING_APPEND_BUFSIZE, "%g", a->a_w.w_float);
any2string_append_string(x, buf, ANY2STRING_APPEND_BUFSIZE, 0);
break;
case A_SYMBOL:
any2string_append_string(x, a->a_w.w_symbol->s_name, strlen(a->a_w.w_symbol->s_name), 1);
break;
case A_DOLLAR:
snprintf(buf, ANY2STRING_APPEND_BUFSIZE, "$%d", a->a_w.w_index);
any2string_append_string(x, buf, ANY2STRING_APPEND_BUFSIZE, 0);
break;
case A_DOLLSYM:
any2string_append_string(x, a->a_w.w_symbol->s_name, strlen(a->a_w.w_symbol->s_name), 0);
break;
default:
pd_error(x,"any2string_append_atom: unknown atom type '%d'", a->a_type);
break;
}
if (x->x_argc < x->x_alloc) {
A2SDEBUG(post("any2string_append_atom[%p]: x_argv[%d] = '%c' = %d", x, x->x_argc, ' ', ' '));
x->x_argv[x->x_argc++].a_w.w_float = ' ';
}
}
/*=====================================================================
* Methods
*=====================================================================*/
/*--------------------------------------------------------------------
* anything
*/
static void any2string_anything(t_any2string *x, t_symbol *sel, int argc, t_atom *argv)
{
t_atom *argv_end = argv+argc;
x->x_argc=0;
A2SDEBUG(post("-------any2string_anything(%p,...) ---------", x));
/*-- stringify selector (maybe) --*/
if (sel != &s_float && sel != &s_list && sel != &s_) {
t_atom a;
SETSYMBOL(&a,sel);
any2string_append_atom(x, &a);
}
/*-- stringify arg list --*/
for ( ; argv<argv_end && x->x_argc<x->x_alloc; argv++) {
any2string_append_atom(x, argv);
}
/*-- add terminating NUL (if we can) --*/
A2SDEBUG(post("any2string[%p]: terminating NUL: x_argv[%d]=0", x, x->x_argc-1));
if (x->x_argc >= x->x_alloc) {
pd_error(x, "any2string: input length exceeds buffer size!");
x->x_argc = x->x_alloc;
x->x_argv[x->x_argc-1].a_w.w_float = '*'; //-- simulate atom_string() behavior
} else if (x->x_argc > 0) {
x->x_argv[x->x_argc-1].a_w.w_float = 0;
}
A2SDEBUG(post("any2string[%p]: outlet_list(..., %d, ...)", x, x->x_argc));
outlet_list(x->x_outlet, &s_list, x->x_argc, x->x_argv);
}
/*--------------------------------------------------------------------
* new
*/
static void *any2string_new(t_floatarg bufsize)
{
t_any2string *x = (t_any2string *)pd_new(any2string_class);
int i;
//-- bufsize
if (bufsize <= 0) {
x->x_alloc = ANY2STRING_DEFAULT_BUFLEN;
} else {
x->x_alloc = bufsize;
}
A2SDEBUG(post("any2string_new: buf_req=%g, alloc=%d", bufsize, x->x_alloc));
//-- defaults
x->x_argc = 0;
x->x_argv = (t_atom*)getbytes(x->x_alloc*sizeof(t_atom));
//-- initialize (set a_type)
for (i=0; i < x->x_alloc; i++) {
SETFLOAT((x->x_argv+i),0);
}
//-- outlets
x->x_outlet = outlet_new(&x->x_obj, &s_list);
A2SDEBUG(post("any2string_new: x=%p, alloc=%d, argv=%p, nbytes=%d", x, x->x_alloc,x->x_argv,x->x_alloc*sizeof(t_atom)));
return (void *)x;
}
/*--------------------------------------------------------------------
* free
*/
static void any2string_free(t_any2string *x)
{
A2SDEBUG(post("any2string_free(x=%p)", x));
if (x->x_argv) {
A2SDEBUG(post("any2string_free(x=%p): x_argv=%p (size=%d)", x, x->x_argv, x->x_alloc*sizeof(t_atom)));
freebytes(x->x_argv, x->x_alloc*sizeof(t_atom));
}
A2SDEBUG(post("any2string_free(x=%p): x_outlet=%p", x, x->x_outlet));
outlet_free(x->x_outlet);
return;
}
/*--------------------------------------------------------------------
* setup
*/
void any2string_setup(void)
{
//-- class
any2string_class = class_new(gensym("any2string"),
(t_newmethod)any2string_new,
(t_method)any2string_free,
sizeof(t_any2string),
CLASS_DEFAULT,
A_DEFFLOAT,
0);
//-- methods
class_addanything(any2string_class,
(t_method)any2string_anything);
//-- help symbol
class_sethelpsymbol(any2string_class, gensym("pdstring-help.pd"));
}
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