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/*__________________________________________________________________________
memchr á memchr c-string function
Copyright (C) 2003 jan schacher
thanks to tim place for inspiration and sample code
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
initial build 200300505
____________________________________________________________________________*/
#include "m_pd.h"
#include <string.h>
#define MIN(a,b) ((a)<(b)?(a):(b))
typedef struct memchr
{
t_object ob;
void *s_outlet;
char s_tempstring[4096];
long s_numChar;
} t_memchr;
void *memchr_class;
void *memchr_new(t_symbol *s, long argc, t_atom *argv);
void memchr_free(t_memchr *x);
void memchr_float(t_memchr *x, float f);
void memchr_anything(t_memchr *x, t_symbol *s, long argc, t_atom *argv);
void memchr_set(t_memchr *x, t_symbol *s, long argc, t_atom *argv);
void memchr_setup(void)
{
memchr_class = class_new(gensym("memchr"), (t_newmethod)memchr_new, (t_method)memchr_free, sizeof(t_memchr), 0, A_GIMME, 0);
class_addfloat(memchr_class, (t_method)memchr_float);
class_addsymbol(memchr_class, (t_method)memchr_anything);
class_addmethod(memchr_class, (t_method)memchr_set, gensym("set"), A_GIMME, 0);
post(". memchr . jasch . "__DATE__" ",0);
}
void *memchr_new(t_symbol *s, long argc, t_atom *argv)
{
short i;
t_memchr *x;
x = (t_memchr *)pd_new(memchr_class);
x->s_outlet = outlet_new(&x->ob, gensym("float"));
strcpy(x->s_tempstring, "/");
x->s_numChar = 1024;
for(i=0; i<argc; i++){
switch(argv[i].a_type){
case A_FLOAT:
if(i == 1){
x->s_numChar = argv[1].a_w.w_float;
}
break;
case A_SYMBOL:
if(i == 0){
strncpy(x->s_tempstring, argv[0].a_w.w_symbol->s_name, 1);
}
break;
}
}
return (x);
}
void memchr_assist(t_memchr *x, void *b, long msg, long arg, char *dst)
{
if(msg==1)
switch(arg){
case 0: strcpy(dst, "strings in (symbol)"); break;
}
else if(msg==2){
strcpy(dst, "matched positions (int)");
}
}
void memchr_float(t_memchr *x, float f)
{
x->s_numChar = (long)f;
}
void memchr_anything(t_memchr *x, t_symbol *s, long argc, t_atom *argv)
{
char *ptr;
char local[4096];
long pos;
strcpy(local, s->s_name);
ptr = (char*)memchr(local, x->s_tempstring[0], MIN((long)strlen(local), x->s_numChar));
if(ptr != NULL){
pos = (long)(ptr-local+1);
outlet_float(x->s_outlet, pos);
}else{
outlet_float(x->s_outlet,-1);
}
return;
}
void memchr_set(t_memchr *x, t_symbol *s, long argc, t_atom *argv)
{
if(argc >= 1){
switch (argv[0].a_type) {
case A_FLOAT: error("memchr: wrong argument type for set");break;
case A_SYMBOL:
strncpy(x->s_tempstring, argv[0].a_w.w_symbol->s_name, 1);
x->s_tempstring[1] = 0;
break;
}
}
}
void memchr_free(t_memchr *x)
{
// notify_free((t_object *)x);
}
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