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/* 

deljoin - join a list with delimiter

Copyright (c) 2002-2003 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 < 401)
#error You need at least flext version 0.4.1
#endif

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

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

#define VERSION "0.1.2"

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


class deljoin:
	public flext_base
{
	FLEXT_HEADER_S(deljoin,flext_base,Setup)

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

protected:
	V m_list(const t_symbol *s,int argc,const t_atom *argv);
	V m_del(const t_symbol *s);
	
	const t_symbol *delim;
	
	virtual void m_help();
		
private:
	static V Setup(t_classid c);

	FLEXT_CALLBACK_A(m_list)
	FLEXT_CALLBACK_S(m_del)
};

FLEXT_NEW_V("deljoin",deljoin)


V deljoin::Setup(t_classid c)
{
	FLEXT_CADDMETHOD(c,0,m_list);
	FLEXT_CADDMETHOD(c,1,m_del);
}

deljoin::deljoin(I argc,const t_atom *argv):
	delim(NULL)
{ 
	AddInAnything("Anything in - triggers output");
	AddInSymbol("Set the Delimiter");
	AddOutSymbol("A symbol representing the joined list");

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

V deljoin::m_help()
{
	post("%s version " VERSION " (using flext " FLEXT_VERSTR "), (C) 2002 Thomas Grill",thisName());
}
	
/** \brief convert incoming list to a concatenated string
	
	Handles symbols, integers and floats
*/
V deljoin::m_list(const t_symbol *s,int argc,const t_atom *argv)
{
	if(delim) {
		C tmp[1024],*t = tmp;
		const C *sdel = GetString(delim);
		I ldel = strlen(sdel);
		
		if(s && s != sym_list && s != sym_float && s != sym_int) {
			strcpy(t,GetString(s));		
			t += strlen(t);
		}
		
		for(int i = 0; i < argc; ++i) {
			if(t != tmp) {
				strcpy(t,sdel);		
				t += ldel;
			}
		
			const t_atom &a = argv[i];
			if(IsSymbol(a))
				strcpy(t,GetString(a));
			else if(IsInt(a)) {
				STD::sprintf(t,"%i",GetInt(a),10);
			}
			else if(IsFloat(a)) {
				STD::sprintf(t,"%f",GetFloat(a),10);
			}
	//		else do nothing
				
			t += strlen(t);
		}
		
		ToOutString(0,tmp);
	}
	else
		post("%s - No delimiter defined",thisName());
}

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