--- ray/src/cv/mgflib/parser.c	1995/03/07 14:53:23	1.13
+++ ray/src/cv/mgflib/parser.c	1995/05/11 20:17:33	1.18
@@ -1,4 +1,4 @@
-/* Copyright (c) 1994 Regents of the University of California */
+/* Copyright (c) 1995 Regents of the University of California */
 
 #ifndef lint
 static char SCCSid[] = "$SunId$ LBL";
@@ -27,6 +27,12 @@ char	mg_ename[MG_NENTITIES][MG_MAXELEN] = MG_NAMELIST;
 
 int	(*mg_ehand[MG_NENTITIES])();
 
+			/* Handler routine for unknown entities */
+
+int	(*mg_uhand)() = mg_defuhand;
+
+unsigned	mg_nunknown;	/* count of unknown entities */
+
 			/* error messages */
 
 char	*mg_err[MG_NERRS] = MG_ERRLIST;
@@ -89,82 +95,83 @@ mg_init()			/* initialize alternate entity handlers */
 		mg_ehand[MG_E_INCLUDE] = e_include;
 	if (mg_ehand[MG_E_SPH] == NULL) {
 		mg_ehand[MG_E_SPH] = e_sph;
-		ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
+		ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
 	} else
-		uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
+		uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
 	if (mg_ehand[MG_E_CYL] == NULL) {
 		mg_ehand[MG_E_CYL] = e_cyl;
-		ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
+		ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
 	} else
-		uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
+		uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
 	if (mg_ehand[MG_E_CONE] == NULL) {
 		mg_ehand[MG_E_CONE] = e_cone;
-		ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
+		ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
 	} else
-		uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
+		uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
 	if (mg_ehand[MG_E_RING] == NULL) {
 		mg_ehand[MG_E_RING] = e_ring;
-		ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX;
+		ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX;
 	} else
-		uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF;
+		uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF;
 	if (mg_ehand[MG_E_PRISM] == NULL) {
 		mg_ehand[MG_E_PRISM] = e_prism;
-		ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
+		ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
 	} else
-		uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
+		uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
 	if (mg_ehand[MG_E_TORUS] == NULL) {
 		mg_ehand[MG_E_TORUS] = e_torus;
-		ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX;
+		ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX;
 	} else
-		uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF;
+		uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF;
 	if (mg_ehand[MG_E_COLOR] != NULL) {
 		if (mg_ehand[MG_E_CMIX] == NULL) {
 			mg_ehand[MG_E_CMIX] = e_cmix;
-			ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT;
+			ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT;
 		}
 		if (mg_ehand[MG_E_CSPEC] == NULL) {
 			mg_ehand[MG_E_CSPEC] = e_cspec;
-			ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT;
+			ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT;
 		}
 		if (mg_ehand[MG_E_CCT] == NULL) {
 			mg_ehand[MG_E_CCT] = e_cct;
-			ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT;
+			ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT;
 		}
 	}
 					/* check for consistency */
 	if (mg_ehand[MG_E_FACE] != NULL)
-		uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
+		uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
 	if (mg_ehand[MG_E_CXY] != NULL || mg_ehand[MG_E_CSPEC] != NULL ||
 			mg_ehand[MG_E_CMIX] != NULL)
-		uneed |= 1<<MG_E_COLOR;
+		uneed |= 1L<<MG_E_COLOR;
 	if (mg_ehand[MG_E_RD] != NULL || mg_ehand[MG_E_TD] != NULL ||
+			mg_ehand[MG_E_IR] != NULL ||
 			mg_ehand[MG_E_ED] != NULL || 
 			mg_ehand[MG_E_RS] != NULL ||
 			mg_ehand[MG_E_TS] != NULL ||
 			mg_ehand[MG_E_SIDES] != NULL)
-		uneed |= 1<<MG_E_MATERIAL;
+		uneed |= 1L<<MG_E_MATERIAL;
 	for (i = 0; i < MG_NENTITIES; i++)
-		if (uneed & 1<<i && mg_ehand[i] == NULL) {
+		if (uneed & 1L<<i && mg_ehand[i] == NULL) {
 			fprintf(stderr, "Missing support for \"%s\" entity\n",
 					mg_ename[i]);
 			exit(1);
 		}
 					/* add support as needed */
-	if (ineed & 1<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex)
+	if (ineed & 1L<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex)
 		e_supp[MG_E_VERTEX] = c_hvertex;
-	if (ineed & 1<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex)
+	if (ineed & 1L<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex)
 		e_supp[MG_E_POINT] = c_hvertex;
-	if (ineed & 1<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex)
+	if (ineed & 1L<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex)
 		e_supp[MG_E_NORMAL] = c_hvertex;
-	if (ineed & 1<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor)
+	if (ineed & 1L<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor)
 		e_supp[MG_E_COLOR] = c_hcolor;
-	if (ineed & 1<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor)
+	if (ineed & 1L<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor)
 		e_supp[MG_E_CXY] = c_hcolor;
-	if (ineed & 1<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor)
+	if (ineed & 1L<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor)
 		e_supp[MG_E_CSPEC] = c_hcolor;
-	if (ineed & 1<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor)
+	if (ineed & 1L<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor)
 		e_supp[MG_E_CMIX] = c_hcolor;
-	if (ineed & 1<<MG_E_CCT && mg_ehand[MG_E_CCT] != c_hcolor)
+	if (ineed & 1L<<MG_E_CCT && mg_ehand[MG_E_CCT] != c_hcolor)
 		e_supp[MG_E_CCT] = c_hcolor;
 					/* discard remaining entities */
 	for (i = 0; i < MG_NENTITIES; i++)
@@ -202,13 +209,16 @@ char	**av;
 {
 	int	rv;
 
-	if (en < 0 && (en = mg_entity(av[0])) < 0)
+	if (en < 0 && (en = mg_entity(av[0])) < 0) {	/* unknown entity */
+		if (mg_uhand != NULL)
+			return((*mg_uhand)(ac, av));
 		return(MG_EUNK);
-	if (e_supp[en] != NULL) {
+	}
+	if (e_supp[en] != NULL) {			/* support handler */
 		if ((rv = (*e_supp[en])(ac, av)) != MG_OK)
 			return(rv);
 	}
-	return((*mg_ehand[en])(ac, av));
+	return((*mg_ehand[en])(ac, av));		/* assigned handler */
 }
 
 
@@ -218,7 +228,6 @@ register MG_FCTXT	*ctx;
 char	*fn;
 {
 	static int	nfids;
-	int	olen;
 	register char	*cp;
 
 	ctx->fid = ++nfids;
@@ -231,14 +240,11 @@ char	*fn;
 		return(MG_OK);
 	}
 					/* get name relative to this context */
-	if (mg_file != NULL &&
-			(cp = strrchr(mg_file->fname, '/')) != NULL)
-		olen = cp - mg_file->fname + 1;
-	else
-		olen = 0;
-	if (olen)
+	if (mg_file != NULL && (cp = strrchr(mg_file->fname, '/')) != NULL) {
 		strcpy(ctx->fname, mg_file->fname);
-	strcpy(ctx->fname+olen, fn);
+		strcpy(ctx->fname+(cp-mg_file->fname+1), fn);
+	} else
+		strcpy(ctx->fname, fn);
 	ctx->fp = fopen(ctx->fname, "r");
 	if (ctx->fp == NULL)
 		return(MG_ENOFILE);
@@ -360,6 +366,18 @@ char	*fn;
 }
 
 
+int
+mg_defuhand(ac, av)		/* default handler for unknown entities */
+int	ac;
+char	**av;
+{
+	if (mg_nunknown++ == 0)		/* report first incident */
+		fprintf(stderr, "%s: %d: %s: %s\n", mg_file->fname,
+				mg_file->lineno, mg_err[MG_EUNK], av[0]);
+	return(MG_OK);
+}
+
+
 void
 mg_clear()			/* clear parser history */
 {
@@ -389,6 +407,7 @@ char	**av;
 {
 	char	*xfarg[MG_MAXARGC];
 	MG_FCTXT	ictx;
+	XF_SPEC	*xf_orig = xf_context;
 	int	rv;
 
 	if (ac < 2)
@@ -405,7 +424,7 @@ char	**av;
 		if ((rv = mg_handle(MG_E_XF, ac-1, xfarg)) != MG_OK)
 			return(rv);
 	}
-	while (!feof(mg_file->fp)) {
+	do {
 		while (mg_read())
 			if ((rv = mg_parse()) != MG_OK) {
 				fprintf(stderr, "%s: %d: %s:\n%s", ictx.fname,
@@ -417,7 +436,7 @@ char	**av;
 		if (ac > 2)
 			if ((rv = mg_handle(MG_E_XF, 1, xfarg)) != MG_OK)
 				return(rv);
-	}
+	} while (xf_context != xf_orig);
 	mg_close();
 	return(MG_OK);
 }
@@ -1004,7 +1023,7 @@ put_cspec()			/* put out current color spectrum */
 		newav[2] = wl[1];
 		sf = (double)C_CNSS / c_ccolor->ssum;
 		for (i = 0; i < C_CNSS; i++) {
-			sprintf(vbuf[i], "%.6f", sf*c_ccolor->ssamp[i]);
+			sprintf(vbuf[i], "%.4f", sf*c_ccolor->ssamp[i]);
 			newav[i+3] = vbuf[i];
 		}
 		newav[C_CNSS+3] = NULL;