/* 

delsplit - split a delimited list-in-a-symbol

Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.  

*/

#include <flext.h>

#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 400)
#error You need at least flext version 0.4.0 
#endif

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>

#define I int
#define L long
#define F float
#define D double
#define V void
#define C char
#define BL bool

#define VERSION "0.1.1"

#ifdef __MWERKS__
#define STD std
#else
#define STD 
#endif


class delsplit:
	public flext_base
{
	FLEXT_HEADER(delsplit,flext_base)

public:
	delsplit(I argc,const t_atom *argv);

protected:
	V m_list(const t_symbol *s);
	V m_del(const t_symbol *s);
	
	const t_symbol *delim;
	
	virtual void m_help();
	virtual void m_assist(long /*msg*/,long /*arg*/,char * /*s*/);
		
	static V SetAtom(t_atom &l,const C *s);
private:
	FLEXT_CALLBACK_S(m_list)
	FLEXT_CALLBACK_S(m_del)
};

FLEXT_NEW_V("delsplit",delsplit)


delsplit::delsplit(I argc,const t_atom *argv):
	delim(NULL)
{ 
	AddInAnything();
	AddInSymbol();
	AddOutList();

	FLEXT_ADDMETHOD(0,m_list);
	FLEXT_ADDMETHOD(1,m_del);

	if(argc && IsSymbol(argv[0])) delim = GetSymbol(argv[0]);
}

V delsplit::m_help()
{
	post("%s version " VERSION " (using flext " FLEXT_VERSTR "), (C) 2002 Thomas Grill",thisName());
}

V delsplit::m_assist(long msg,long arg,char *s)
{
	switch(msg) {
	case 1: //ASSIST_INLET:
		switch(arg) {
		case 0:
			STD::sprintf(s,"Symbol in, representing the delimited list"); break;
		case 1:
			STD::sprintf(s,"Set the Delimiter"); break;
		}
		break;
	case 2: //ASSIST_OUTLET:
		switch(arg) {
		case 0:
			STD::sprintf(s,"The split list"); break;
		}
		break;
	}
}
	
/** \brief check whether string represents a number
	\ret 0..integer, 1..float, -1..no number
*/
static I chknum(const C *s)
{
	int num = 0,pts = 0;
	for(const char *si = s; *s; ++s) {
		if(*s == '.') ++pts;
		else if(isdigit(*s)) ++num;
		else { num = 0; break; }
	}
	return (num > 0 && pts <= 1)?pts:-1;
}

V delsplit::SetAtom(t_atom &l,const C *s)
{
	I n = chknum(s);

	if(n < 0)
		SetString(l,s);
	else if(n == 0)
		SetInt(l,atoi(s));
	else
		SetFloat(l,(F)atof(s));
}

V delsplit::m_list(const t_symbol *sym)
{
	t_atom lst[256];
	int cnt = 0;
	const C *sdel = GetString(delim);
	I ldel = strlen(sdel);
	C str[1024];
	strcpy(str,GetString(sym));
	
	for(const char *s = str; *s; ) {
		C *e = strstr(s,sdel);
		if(!e) {
			SetAtom(lst[cnt++],s);
			break;
		}
		else {
			*e = 0;
			SetAtom(lst[cnt++],s);
			s = e+ldel;
		}
	}
	
	ToOutList(0,cnt,lst);
}

V delsplit::m_del(const t_symbol *s)
{
	delim = s;
}