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/*
* symbol2list: convert a symbol into a list (with given delimiters)
*
* (c) 1999-2011 IOhannes m zmölnig, forum::für::umläute, institute of electronic music and acoustics (iem)
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "zexy.h"
#include <stdlib.h>
#include <string.h>
/* ------------------------- symbol2list ------------------------------- */
static t_class *symbol2list_class;
typedef struct _symbol2list
{
t_object x_obj;
t_symbol *s, *delimiter;
t_atom *argv;
int argc, argnum; /* "argnum" is the number of reserved atoms (might be >argc) */
} t_symbol2list;
static void symbol2list_delimiter(t_symbol2list *x, t_symbol *s){
x->delimiter = s;
}
STATIC_INLINE void string2atom(t_atom *ap, char* cp, int clen){
char *buffer=getbytes(sizeof(char)*(clen+1));
char *endptr[1];
t_float ftest;
strncpy(buffer, cp, clen);
buffer[clen]=0;
ftest=strtod(buffer, endptr);
/* what should we do with the special cases of hexadecimal values, "INF" and "NAN" ???
* strtod() parses them to numeric values:
* symbol "hallo 0x12" will become "list hallo 18"
* do we want this ??
*/
if (buffer+clen!=*endptr){
/* strtof() failed, we have a symbol */
SETSYMBOL(ap, gensym(buffer));
} else {
/* it is a number. */
SETFLOAT(ap,ftest);
}
freebytes(buffer, sizeof(char)*(clen+1));
}
static void symbol2list_process(t_symbol2list *x)
{
char *cc;
char *deli;
int dell;
char *cp, *d;
int i=1;
if (x->s==NULL){
x->argc=0;
return;
}
cc=x->s->s_name;
cp=cc;
if (x->delimiter==NULL || x->delimiter==gensym("")){
i=strlen(cc);
if(x->argnum<i){
freebytes(x->argv, x->argnum*sizeof(t_atom));
x->argnum=i+10;
x->argv=getbytes(x->argnum*sizeof(t_atom));
}
x->argc=i;
while(i--)string2atom(x->argv+i, cc+i, 1);
return;
}
deli=x->delimiter->s_name;
dell=strlen(deli);
/* get the number of tokens */
while((d=strstr(cp, deli))){
if (d!=NULL && d!=cp){
i++;
}
cp=d+dell;
}
/* resize the list-buffer if necessary */
if(x->argnum<i){
freebytes(x->argv, x->argnum*sizeof(t_atom));
x->argnum=i+10;
x->argv=getbytes(x->argnum*sizeof(t_atom));
}
x->argc=i;
/* parse the tokens into the list-buffer */
i=0;
/* find the first token */
cp=cc;
while(cp==(d=strstr(cp,deli))){cp+=dell;}
while((d=strstr(cp, deli))){
if(d!=cp){
string2atom(x->argv+i, cp, d-cp);
i++;
}
cp=d+dell;
}
if(cp)string2atom(x->argv+i, cp, strlen(cp));
}
static void symbol2list_bang(t_symbol2list *x){
if(!(x->s) || x->s==gensym("")){
outlet_bang(x->x_obj.ob_outlet);
return;
}
symbol2list_process(x);
if(x->argc)outlet_list(x->x_obj.ob_outlet, 0, x->argc, x->argv);
}
static void symbol2list_symbol(t_symbol2list *x, t_symbol *s){
x->s = s;
symbol2list_bang(x);
}
static void *symbol2list_new(t_symbol *s, int argc, t_atom *argv)
{
t_symbol2list *x = (t_symbol2list *)pd_new(symbol2list_class);
ZEXY_USEVAR(s);
outlet_new(&x->x_obj, 0);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("symbol"), gensym(""));
x->argc=0;
x->argnum=16;
x->argv=getbytes(x->argnum*sizeof(t_atom));
symbol2list_delimiter(x, (argc)?atom_getsymbol(argv):gensym(" "));
return (x);
}
static void symbol2list_free(t_symbol2list *x)
{}
static void symbol2list_help(t_symbol2list*x)
{
post("\n%c symbol2list\t:: split a symbol into a list of atoms", HEARTSYMBOL);
}
void symbol2list_setup(void)
{
symbol2list_class = class_new(gensym("symbol2list"), (t_newmethod)symbol2list_new,
(t_method)symbol2list_free, sizeof(t_symbol2list), 0, A_GIMME, 0);
class_addcreator((t_newmethod)symbol2list_new, gensym("s2l"), A_GIMME, 0);
class_addsymbol (symbol2list_class, symbol2list_symbol);
class_addbang (symbol2list_class, symbol2list_bang);
class_addmethod (symbol2list_class, (t_method)symbol2list_delimiter, gensym(""), A_SYMBOL, 0);
class_addmethod(symbol2list_class, (t_method)symbol2list_help, gensym("help"), A_NULL);
zexy_register("symbol2list");
}
void s2l_setup(void)
{
symbol2list_setup();
}
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