/************************************************************************
 ************************************************************************
    FAUST compiler
	Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
    ---------------------------------------------------------------------
    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., 675 Mass Ave, Cambridge, MA 02139, USA.
 ************************************************************************
 ************************************************************************/
 
 
 
#include <stdio.h>

#include "signals.hh"
#include "sigtype.hh"
#include "sigtyperules.hh"

// imprime le type d'un signal en clair
#if 0
void printSigType (Tree tp)
{
	Tree t0;
	int 	n, v, c;
	
	if (isTableType(tp, t0)) {
		printf("table-of "); 
		printSigType(t0);
	} else if (isSigType(tp, &n, &v, &c)) {
		putchar("NR"[n]);
		putchar("KB S"[v]);
		putchar("CI X"[c]);
		//printf(" {%d,%d,%d} ", n, v, c);
	} else {
		printf("unknown");
	}
}

void printSigTypeList (Tree l)
{
	char sep = '(';

	do {
		putchar(sep); sep = ',';
		printSigType(hd(l));
		l = tl(l);
	} while (isList(l));

	putchar(')');
}
#endif 

void printSigType (int n, int v, int c)
{
	putchar("NR"[n]);
	putchar("KB S"[v]);
	putchar("CI X"[c]);
}

char* binopname[]= {
		"+", "-", "*", "/", "%", 
		"<<", ">>",
		">", "<", ">=", "<=", "==", "!=",
		"&", "|", "^" 
};

int binopprec[]= {
		2, 2, 3, 3, 3,
		1, 1,
		1, 1, 1, 1, 1, 1,
		1, 1, 1
};		

void printSignal(Tree sig, FILE* out, int prec)
{
	int 	i;
	float	r;
	Tree 	 x, y, z, le, id;
	    
		 if ( isSigInt(sig, &i) ) 			{ fprintf(out, "%d", i); 	}
	else if ( isSigReal(sig, &r) ) 			{ fprintf(out, "%f", r); 	}
	else if ( isSigInput(sig, &i) ) 		{ fprintf(out, "IN%d", i);	}
	else if ( isSigOutput(sig, &i, x) ) 	{ fprintf(out, "OUT%d := ", i); printSignal(x, out, 0); }
	
	else if ( isSigBinOp(sig, &i, x, y) )	{ 
		if (prec > binopprec[i]) fputs("(", out); 
		printSignal(x,out,binopprec[i]); fputs(binopname[i], out); printSignal(y, out, binopprec[i]); 
		if (prec > binopprec[i]) fputs(")", out); 	
	}
	else if ( isSigDelay1(sig, x) ) 		{ fputs("mem(", out); printSignal(x,out,0); fputs(")", out);		}
	else if ( isSigPrefix(sig, x, y) ) 		{ fputs("prefix(", out); printSignal(x,out,0); fputs(",", out);	 printSignal(y,out,0); fputs(")", out);		}
	else if ( isSigAttach(sig, x, y) ) 		{ fputs("attach(", out); printSignal(x,out,0); fputs(",", out);	 printSignal(y,out,0); fputs(")", out);		}
	else if ( isSigFixDelay(sig, x, y) ) 	{ 
		if (prec > 4) fputs("(", out); 
		printSignal(x,out,4); fputs("@", out); printSignal(y, out, 4); 
		if (prec > 4) fputs(")", out); 	
	}

	else if ( isProj(sig, &i, x) ) 			{ printSignal(x,out,prec); fprintf(out, "#%d", i); 		}
	else if ( isRef(sig, i) ) 				{ fprintf(out, "$%d", i);		}
	else if ( isRef(sig, x) ) 				{ print(x, out); 			}
	else if ( isRec(sig, le))				{ fputs("\\_.", out); printSignal(le, out, prec);	}
	else if ( isRec(sig, x, le))			{ fputs("\\", out); print(x,out); fputs(".", out); printSignal(le, out, prec);	}
	
	else if ( isSigTable(sig, id, x, y) ) 	{ fputs("table(", out); printSignal(x,out,0); fputc(',', out); printSignal(y,out,0); fputc(')', out);   }
	else if ( isSigWRTbl(sig, id, x, y, z) ){ printSignal(x,out,0); fputc('[',out); printSignal(y,out,0); fputs("] := (", out); printSignal(z,out,0); fputc(')', out);   }
	else if ( isSigRDTbl(sig, x, y) ) 		{ printSignal(x,out,0); fputc('[', out); printSignal(y,out,0); fputc(']', out);   }
	
	else if ( isSigGen(sig, x) ) 			{ printSignal(x,out,prec); 				}
 
	else if ( isSigIntCast(sig, x) ) 		{ fputs("int(", out); printSignal(x,out,0); fputs(")", out);		}
	else if ( isSigFloatCast(sig, x) ) 		{ fputs("float(", out); printSignal(x,out,0); fputs(")", out);		}

	else if (isList(sig)) {
		char sep = '{';
		do { 
			fputc(sep, out);
			printSignal(hd(sig), out, 0);
			sep=',';
			sig = tl(sig);
		} while (isList(sig));
		fputc('}', out);
	}
	else
		print(sig, out);
}
