/****************************************************************
Copyright (C) 1997-1998 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 "getstub.h"

#ifdef SYMANTEC
extern int _8087;
#endif

char *Lic_info_ASL = "", *Lic_info_add_ASL;

 static int
#ifdef KR_headers
kw_width(kw, n, pkwe) keyword *kw, **pkwe; int n;
#else
kw_width(keyword *kw, int n, keyword **pkwe)
#endif
{
	char *s;
	int L = 1, m;
	keyword *kwe = kw;

	if (kw) {
		for(kwe += n; kw < kwe; kw++) {
			m = strlen(kw->name);
			if ((s = kw->desc) && *s == '=') {
				while(*++s > ' ');
				m += s - kw->desc;
				}
			if (L < m)
				L = m;
			}
		}
	*pkwe = kwe;
	return L + 2;
	}

 static void
#ifdef KR_headers
shownames(oi) Option_Info *oi;
#else
shownames(Option_Info *oi)
#endif
{
	char *s;
	keyword *v, *ve;
	int L, L1, L2;

	if (oi) {
		L = kw_width(oi->keywds, oi->n_keywds, &ve);
		for(v = oi->keywds; v < ve; v++)
			if (s = v->desc) {
				if (*s == '=') {
					while(*++s > ' ');
					L1 = s - v->desc;
					L2 = L - strlen(v->name);
					if (*s)
						s++;
					printf("%s%-*.*s%s\n", v->name, L2,
						L1, v->desc, s);
					}
				else
					printf("%-*s%s\n", L, v->name, s);
				}
			else
				printf("%s\n", v->name);
		}
	exit(0);
	}

 static void
#ifdef KR_headers
ofix(o, k) char **o; int k;
#else
ofix(char **o, int k)
#endif
{
	/* get rid of "ix" and possibly "u" */
	while(*o)
		o++;
	o -= 8;
	o[0] = o[2];
	o[1] = o[3];
	for(o += 2; *o = o[k]; o++);
	}

 void
#ifdef KR_headers
usage_ASL(oi, rc) Option_Info *oi; int rc;
#else
usage_ASL(Option_Info *oi, int rc)
#endif
{
	static char *opts[] = {
		"-", "end of options",
		"=", "show name= possibilities",
		"?", "show usage",
#ifdef SYMANTEC
		"E", "force floating-point emulation (Symantec only)",
#endif
		"e", "suppress echoing of assignments",
		"ix","import user-defined functions from x; -i? gives details",
		"s", "write .sol file (without -AMPL)",
		"u", "just show available user-defined functions",
		"v", "just show version",
		0};
	char **o, *s, *s1;
	keyword *kw, *kwe;
	int i, L, L1, L2;
	FILE *f = stdout;

	if (rc) {
		if (!Stderr)
			Stderr_init_ASL();
		f = Stderr;
		}
	kw = kwe = 0;
	o = 0;
	s = 0;
	L = 2;
	if (oi) {
		s = oi->sname;
		o = oi->usage;
		L = kw_width(kw = oi->options, oi->n_options, &kwe);
		}
	fprintf(f, "usage: %s [options] stub [-AMPL] [<assignment> ...]\n",
		s ? s : basename(progname));
	if (o)
		while(s = *o++)
			fprintf(f, "%s\n", s);
	fprintf(f, "\nOptions:\n");
	o = opts;
	if (!oi || !(oi->flags && ASL_OI_want_funcadd))
		ofix(o, 4);
	else if (!ix_details_ASL[0])
		ofix(o, 2);
	s = *o;
	for(;;) {
		if (kw < kwe)
			i = s ? strcmp(s, kw->name): 1;
		else if (s)
			i = -1;
		else
			break;
		if (i < 0)
			fprintf(f, "\t-%-*s{%s}\n", L, s, o[1]);
		else {
			if (s1 = kw->desc)
				if (*s1 == '=') {
					while(*++s1 > ' ');
					L1 = s1 - kw->desc;
					L2 = L - strlen(kw->name);
					if (*s1)
						s1++;
					fprintf(f, "\t-%s%-*.*s{%s}\n",
						kw->name, L2, L1, kw->desc,s1);
					}
				else
					fprintf(f, "\t-%-*s{%s}\n", L,
						kw->name, s1);
			else
				fprintf(f, "\t-%s\n", kw->name);
			++kw;
			}
		if (i <= 0) {
			o += 2;
			s = *o;
			}
		}
	exit(rc);
	}

 char *
#ifdef KR_headers
get_opt_ASL(oi, s) Option_Info *oi; char *s;
#else
get_opt_ASL(Option_Info *oi, char *s)
#endif
{
	keyword *kw;
	char buf[256];
	char *b, *be, *s0, *s1;
	fint N;

	while(*s <= ' ' && *s) s++;
	if (!*s)
		return s;
	oi->nnl = 0;
	s0 = s;
	if (kw = (keyword *)b_search_ASL(oi->keywds, (int)sizeof(keyword),
			oi->n_keywds, &s, &oi->eqsign)) {
		oi->option_echo = (oi->option_echo | ASL_OI_echothis)
				& ~ASL_OI_badvalue;
		s1 = (*kw->kf)(oi, kw, s);
		if (oi->option_echo & ASL_OI_badvalue) {
			fprintf(Stderr, "Bad value in \"%.*s\"\n",
				(int)(s1-s0), s0);
			oi->n_badopts++;
			while(*++s1 > ' ');
			}
		else if ((oi->option_echo & (ASL_OI_echo|ASL_OI_echothis))
				== (ASL_OI_echo|ASL_OI_echothis))
			printf("%.*s\n", s1-s0, s0);
		}
	else if (*s <= '9' && *s >= '0' && oi->feq) {
		N = strtol(s1 = s, &s1, 10);
		if (*s1 == '=')
			s1++;
		else if (*s1 > ' ')
			goto bad;
		while(*s1 <= ' ')
			if (!*s1++)
				goto bad;
		s = s1;
		while(*++s1 > ' ');
		printf("%.*s\n", s1-s0, s0);
		if ((*oi->feq)(&N, s, (fint)(s1-s)))
			oi->n_badopts++;
		}
	else if (oi->kwf) {
		b = buf;
		be = buf + sizeof(buf) - 2;
		while(*s > ' ' && *s != '=') {
			if ((*b = *s++) == '_') {
				if (!(oi->flags & ASL_OI_keep_underscores))
					*b = ' ';
				}
			if (b < be)
				b++;
			}
		*b++ = ' ';
		while(*s <= ' ' && *s)
			s++;
		if (*s != '=' || b >= be)
			goto bad;
		while(*++s <= ' ' && *s);
		while(*s > ' ') {
			*b = *s++;
			if (b < be)
				b++;
			}
		*b = 0;
		printf("%.*s\n", s-s0, s0);
		if ((*oi->kwf)(buf, (fint)(b-buf)))
			oi->n_badopts++;
		return s;
		}
	else {
 bad:
		for(s1 = s0; *s1 > ' ' && *s1 != '='; s1++);
		printf("Unknown keyword \"%.*s\"\n", s1-s0, s0);
		if (*s1 == '=')
			while(*++s1 > ' ');
		oi->n_badopts++;
		}
	return s1;
	}

 void
show_version_ASL(Option_Info *oi)
{
	char *s;
	Const char *ver;
	int L;
	extern Const char *Version_Qualifier_ASL;

	if (!(s = oi->version)
	 && !(s = oi->bsname)
	 && !(s = progname))
		s = "???";	/* defend against bozos */
	L = strlen(s);
	while(L > 0 && s[L-1] == '\n')
		--L;
	if (!(ver = Version_Qualifier_ASL))
		ver = "";
	printf("%s%.*s%s", ver, L, s, oi->nnl ? "\n" : "");
	if (*sysdetails_ASL)
		printf(" (%s)", sysdetails_ASL);
	if (oi->driver_date > 0)
		printf(", driver(%ld)", oi->driver_date);
	printf(", ASL(%ld)\n", ASLdate_ASL);
	if (Lic_info_add_ASL)
		printf("%s\n", Lic_info_add_ASL);
	if (Lic_info_ASL && *Lic_info_ASL)
		printf("%s\n", Lic_info_ASL);
	}

 char *
#ifdef KR_headers
Ver_val_ASL(oi, kw, v) Option_Info *oi; keyword *kw; char *v;
#else
Ver_val_ASL(Option_Info *oi, keyword *kw, char *v)
#endif
{
	char *s;
	int wantver;

	if (!v || *v < '0' || *v > '9')
		goto showver;
	wantver = (int)strtol(s = v, &v, 10);
	if (*(unsigned char*)v > ' ')
		return badval_ASL(oi,kw,s,v);
	if (wantver) {
 showver:
		if (oi->option_echo & ASL_OI_clopt) {	/* -v */
			show_version_ASL(oi);
			exit(0);
			}
		oi->flags |= ASL_OI_show_version;
		}
	else
		oi->flags &= ~ASL_OI_show_version;
	return v;
	}

 static void
ix_usage(VOID)
{
	char **o = ix_details_ASL, *s;

	printf("-i options:\n");
	while(s = *o++)
		printf("\t%s\n", s);
	exit(0);
	}

 char *
#ifdef KR_headers
getstub_ASL(asl, pargv, oi) ASL *asl; char ***pargv; Option_Info *oi;
#else
getstub_ASL(ASL *asl, char ***pargv, Option_Info *oi)
#endif
{
	char *s, *s1;
	keyword *kw, *okw;
	int i, options;
	char **argv = *pargv;

	progname = *argv;
	if (!Stderr)
		Stderr_init_ASL();	/* set Stderr if necessary */
	if (!asl)
		badasl_ASL(asl,0,"getstub");
	amplflag = 0;
	options = 1;
	okw = 0;
	if (oi) {
		oi->nnl = 0;
		oi->asl = asl;
		okw = oi->options;
		if (s = getenv("solver_msg")) {
			i = (int)strtol(s, &s1, 10);
			if (s1 > s && !*s1 && i >= 0 && !(i & 1))
				oi->option_echo = ASL_OI_never_echo;
			}
		oi->option_echo = (oi->option_echo & ASL_OI_never_echo)
			? ASL_OI_never_echo : ASL_OI_clopt | ASL_OI_echo;
		oi->n_badopts = 0;
		}

	while(s = *++argv) {
		if (*s == '-' && options) {
			s1 = s + 1;
			if (okw
			 && (kw = (keyword*)b_search_ASL(okw,
					(int)sizeof(keyword), oi->n_options,
					&s1, &oi->eqsign))) {
				if (!*s1 && argv[1]) {
					s = (*kw->kf)(oi, kw, argv[1]);
					if (s != argv[1])
						argv++;
					continue;
					}
				(*kw->kf)(oi, kw, s1);
				continue;
				}
			if (!s1[1])
			    switch(*s1) {
				case '=':
					shownames(oi);
				case '?':
					usage_ASL(oi,0);
				case '-':
					options = 0;
					continue;
#ifdef SYMANTEC
				case 'E':
					_8087 = 0;
					continue;
#endif
				case 'e':
					if (oi)
						oi->option_echo &= ~ASL_OI_echo;
					continue;
				case 's':
					if (oi)
						oi->wantsol = 1;
					continue;
				case 'u':
					if (!oi || !(oi->flags && ASL_OI_want_funcadd))
						break;
					func_add(asl);
					show_funcs();
					exit(0);
				case 'v':
					if (oi)
						Ver_val_ASL(oi,0,0);
					continue;
				case 'i':
					if (ix_details_ASL[0]) {
						if (s = argv[1]) {
							argv++;
							if (*s == '?' && !s[1])
								ix_usage();
							i_option_ASL = s;
							}
						continue;
						}
				}
			if (*s1 == 'i' && ix_details_ASL[0]) {
				if (s1[1] == '?' && !s1[2])
					ix_usage();
				i_option_ASL = s1 + 1;
				continue;
				}
			if (*s1 == '-') {
				if (!strcmp(++s1, "help")) {
					if (oi)
						usage_ASL(oi,0);
					}
				else if (!strcmp(s1, "version")) {
					if (oi) {
						Ver_val_ASL(oi,0,0);
						continue;
						}
					}
				}
			fprintf(Stderr, "%s: bad option %s\n", progname, s);
			usage_ASL(oi,1);
			}
		if (strchr(s,'='))
			break;
		if ((s1 = *++argv) && !strncmp(s1,"-AMPL",5)) {
			amplflag = 1;
			argv++;
			if (oi && oi->bsname
			 && !(oi->option_echo & ASL_OI_never_echo))
				need_nl = oi->nnl = printf("%s: ", oi->bsname);
			}
		i = strlen(s) - 3;
		if (i > 0 && !strcmp(s+i,".nl"))
			s[i] = 0;
		break;
		}
	if (oi && oi->n_badopts)	/* possiby set by kw->kf */
		exit(1);
	*pargv = argv;
	return s;
	}

 int
#ifdef KR_headers
getopts_ASL(asl, argv, oi) ASL *asl; char **argv; Option_Info *oi;
#else
getopts_ASL(ASL *asl, char **argv, Option_Info *oi)
#endif
{
	char *s;

	if (!Stderr)
		Stderr_init_ASL();
	if (!(oi->asl = asl))
		badasl_ASL(asl,0,"getopts");
	if (!oi->option_echo)
		oi->option_echo = ASL_OI_echo;
	oi->option_echo &= ASL_OI_echo;
	oi->n_badopts = 0;

	if (oi->opname && (s = getenv(oi->opname)))
		while(*s)
			s = get_opt_ASL(oi, s);

	while(s = *argv++)
		do s = get_opt_ASL(oi, s);
			while(*s);

	need_nl = oi->nnl;
	if (oi->flags & ASL_OI_show_version)
		show_version_ASL(oi);
	fflush(stdout);
	return oi->n_badopts;
	}

 char *
#ifdef KR_headers
getstops_ASL(asl, argv, oi) ASL *asl; char **argv; Option_Info *oi;
#else
getstops_ASL(ASL *asl, char **argv, Option_Info *oi)
#endif
{
	char *s;

	if (!asl)
		badasl_ASL(asl,0,"getstops");
	if (!(s = getstub_ASL(asl, &argv, oi))) {
		fprintf(Stderr, "No stub!\n");
		usage_ASL(oi,1);
		}

	if (getopts_ASL(asl,argv,oi))
		exit(1);
	return s;
	}

 void
#ifdef KR_headers
badopt_ASL(oi) Option_Info *oi;
#else
badopt_ASL(Option_Info *oi)
#endif
{
	oi->n_badopts++;
	oi->option_echo &= ~ASL_OI_echothis;
	}

 char *
#ifdef KR_headers
badval_ASL(oi, kw, value, badc) Option_Info *oi; keyword *kw; char *value; char *badc;
#else
badval_ASL(Option_Info *oi, keyword *kw, char *value, char *badc)
#endif
{
	char *s;
	int c, w, w1;

	fflush(stdout);
	for(s = badc; *s > ' '; s++);
	w = (int)(strlen(kw->name) + 2 + (badc-value));
	w1 = (int)(s - value);
	fprintf(Stderr, "\n%s%s%.*s\n%*s\nBad character ",
		kw->name, oi->eqsign, w1, value, w, "*");
	c = *(unsigned char *)badc;
	fprintf(Stderr, c >= ' ' && c < 0x7f ? "'%c'" : "'\\x%x'", c);
	fprintf(Stderr, " in numeric string \"%.*s\".\n", w1, value);
	fflush(Stderr);
	badopt_ASL(oi);
	return s;
	}
/* 20000703: basename --> basename_ASL in asl.h */
