/****************************************************************
Copyright (C) 1997-2001 Lucent Technologies
All Rights Reserved

Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.

LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/

#include "asl.h"

#ifdef __cplusplus
extern "C" {
#endif

extern void fpinit_ASL(VOID);

#ifdef KR_headers
 extern int Sscanf();
#else
 extern int Sscanf(char*, const char*, ...);
#endif

#undef Want_bswap
#ifdef IEEE_MC68k
#define Want_bswap
#endif
#ifdef IEEE_8087
#define Want_bswap
#endif
#ifdef Want_bswap

 void
#ifdef KR_headers
bswap_ASL(x, L) void *x; unsigned long L;
#else
bswap_ASL(void *x, unsigned long L)
#endif
{
	char *s = (char*)x;
	int t;
	switch(L) {
	 case 2:
		t = s[0]; s[0] = s[1]; s[1] = t;
		break;
	 case 4:
		t = s[0]; s[0] = s[3]; s[3] = t;
		t = s[1]; s[1] = s[2]; s[2] = t;
		break;
	 case 8:
		t = s[0]; s[0] = s[7]; s[7] = t;
		t = s[1]; s[1] = s[6]; s[6] = t;
		t = s[2]; s[2] = s[5]; s[5] = t;
		t = s[3]; s[3] = s[4]; s[4] = t;
	 }
	}

#endif /* Want_bswap */

 static void
#ifdef KR_headers
badfmt(R) EdRead *R;
#else
badfmt(EdRead *R)
#endif
{
	badread(R);
	fprintf(Stderr, "Unrecognized binary format.\n");
	exit(1);
	}

 static void
#ifdef KR_headers
badints(R, got, wanted) EdRead *R; int got, wanted;
#else
badints(EdRead *R, int got, int wanted)
#endif
{
	badread(R);
	fprintf(Stderr, "got only %d integers; wanted %d\n", got, wanted);
	exit(1);
	}

 static void
#ifdef KR_headers
read2(R, x, y) EdRead *R; int *x, *y;
#else
read2(EdRead *R, int *x, int *y)
#endif
{
	char *s;
	int k;

	s = read_line(R);
	k = Sscanf(s, " %d %d", x, y);
	if (k != 2)
		badints(R, k, 2);
	}

 FILE *
#ifdef KR_headers
jac0dim_ASL(asl, stub, stub_len) ASL *asl; char *stub; ftnlen stub_len;
#else
jac0dim_ASL(ASL *asl, char *stub, ftnlen stub_len)
#endif
{
	FILE *nl;
	int i, k, nlv;
	char *s, *se;
	EdRead ER, *R;

	if (!asl)
		badasl_ASL(asl,0,"jac0dim");
	fpinit_ASL();	/* get IEEE arithmetic, if possible */

	if (stub_len <= 0)
		for(i = 0; stub[i]; i++);
	else
		for(i = stub_len; stub[i-1] == ' ' && i > 0; --i);
	filename = (char *)M1alloc(i + 5);
	s = stub_end = filename + i;
	strncpy(filename, stub, i);
	strcpy(s, ".nl");
	nl = fopen(filename, "rb");
	if (!nl && i > 3 && !strncmp(s-3, ".nl", 3)) {
		*s = 0;
		stub_end = s - 3;
		nl = fopen(filename, "rb");
		}
	if (!nl) {
		if (return_nofile)
			return 0;
		fflush(stdout);
		what_prog();
		fprintf(Stderr, "can't open %s\n", filename);
		exit(1);
		}
	R = EdReadInit_ASL(&ER, asl, nl, 0);
	R->Line = 0;
	s = read_line(R);
	binary_nl = 0;
	switch(*s) {
#ifdef DEPRECATED
		case 'E':	/* deprecated "-oe" format */
			{int ncsi = 0;
			k = Sscanf(s, "E%d %d %d %d %d %d", &n_var, &n_con,
				&n_obj, &maxrownamelen, &maxcolnamelen, &ncsi);
			if (k < 5)
				badints(R, k, 5);
			if (ncsi) {
				if (ncsi != 6) {
					badread(R);
					fprintf(Stderr,
					 "expected 6th integer to be 0 or 6, not %d\n",
						ncsi);
					exit(1);
					}
				s = read_line(R);
				k = Sscanf(s, " %d %d %d %d %d %d",
					&comb, &comc, &como, &comc1, &como1, &nfunc);
				if (k != 6)
					badints(R, k, 6);
				}
			}
			break;
#endif
		case 'b':
			binary_nl = 1;
		case 'g':
			if (k = ampl_options[0] = strtol(++s, &se, 10)) {
				if (k > 9) {
					fprintf(Stderr,
					"ampl_options = %d is too large\n", k);
					exit(1);
					}
				for(i = 1; i <= k && se > s; i++)
					ampl_options[i] = strtol(s = se,&se,10);
				if (ampl_options[2] == 3)
					ampl_vbtol = strtod(s = se, &se);
				}
			s = read_line(R);
			n_eqn = -1;
			k = Sscanf(s, " %d %d %d %d %d %d", &n_var, &n_con,
				&n_obj, &nranges, &n_eqn, &n_lcon);
			if (k < 3)
				badints(R,k,3);
			nclcon = n_con + n_lcon;

			/* formerly read2(R, &nlc, &nlo); */
			s = read_line(R);
			n_cc = nlcc = 0;
			k = Sscanf(s, " %d %d %d %d", &nlc, &nlo, &n_cc, &nlcc);
			if (k < 2)
				badints(R,k,2);
			n_cc += nlcc;

			read2(R, &nlnc, &lnc);
			nlvb = -1;
			s = read_line(R);
			k = Sscanf(s, " %d %d %d", &nlvc, &nlvo, &nlvb);
			if (k < 2)
				badints(R,k,2);

			/* read2(R, &nwv, &nfunc); */
			s = read_line(R);
			asl->i.flags = 0;
			k = Sscanf(s, " %d %d %d %d", &nwv, &nfunc, &i,
				&asl->i.flags);
			if (k < 2)
				badints(R,k,2);
			else if (k >= 3 && i != Arith_Kind_ASL && i) {
#ifdef Want_bswap
				if (i > 0 && i + Arith_Kind_ASL == 3) {
					asl->i.iadjfcn = asl->i.dadjfcn = bswap_ASL;
					binary_nl = i << 1;
					}
				else
#endif
					badfmt(R);
				}

			if (nlvb < 0)	/* ampl versions < 19930630 */
				read2(R, &nbv, &niv);
			else {
				s = read_line(R);
				k = Sscanf(s, " %d %d %d %d %d", &nbv, &niv,
					&nlvbi, &nlvci, &nlvoi);
				if (k != 5)
					badints(R,k,5);
				}
			read2(R, &nzc, &nzo);
			read2(R, &maxrownamelen, &maxcolnamelen);
			s = read_line(R);
			k = Sscanf(s, " %d %d %d %d %d", &comb, &comc, &como,
					&comc1, &como1);
			if (k != 5)
				badints(R,k,5);
		}
	student_check_ASL(asl);
	if (n_con < 0 || n_var <= 0 || n_obj < 0) {
		what_prog();
		fprintf(Stderr,
		"jacdim: got M = %d, N = %d, NO = %d\n", n_con, n_var, n_obj);
		exit(1);
		}
	asl->i.n_var0 = n_var;
	asl->i.n_con0 = n_con;
	if ((nlv = nlvc) < nlvo)
		nlv = nlvo;
	if (nlv <= 0)
		nlv = 1;
	x0len = nlv * sizeof(real);
	x0kind = ASL_first_x;
	n_conjac[0] = 0;
	n_conjac[1] = n_con;
	c_vars = o_vars = n_var;	/* confusion arises otherwise */
	return nl;
	}

 FILE *
#ifdef KR_headers
jac_dim_ASL(asl, stub, M, N, NO, NZ, MXROW, MXCOL, stub_len)
 ASL *asl; char *stub;
 fint *M, *N, *NO, *NZ, *MXROW, *MXCOL;
 fint stub_len;
#else
jac_dim_ASL(ASL *asl, char *stub, fint *M, fint *N, fint *NO, fint *NZ,
		fint *MXROW, fint *MXCOL, fint stub_len)
#endif
{
	FILE *nl;

	if (nl = jac0dim_ASL(asl, stub, stub_len)) {
		*M = n_con;
		*N = n_var;
		*NO = n_obj;
		*NZ = nzc;
		*MXROW = maxrownamelen;
		*MXCOL = maxcolnamelen;
		}
	return nl;
	}

#ifdef __cplusplus
	}
#endif
