1 |
< |
/* Copyright (c) 1994 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1995 Regents of the University of California */ |
2 |
|
|
3 |
|
#ifndef lint |
4 |
|
static char SCCSid[] = "$SunId$ LBL"; |
27 |
|
|
28 |
|
int (*mg_ehand[MG_NENTITIES])(); |
29 |
|
|
30 |
+ |
/* Handler routine for unknown entities */ |
31 |
+ |
|
32 |
+ |
int (*mg_uhand)() = mg_defuhand; |
33 |
+ |
|
34 |
+ |
unsigned mg_nunknown; /* count of unknown entities */ |
35 |
+ |
|
36 |
|
/* error messages */ |
37 |
|
|
38 |
|
char *mg_err[MG_NERRS] = MG_ERRLIST; |
95 |
|
mg_ehand[MG_E_INCLUDE] = e_include; |
96 |
|
if (mg_ehand[MG_E_SPH] == NULL) { |
97 |
|
mg_ehand[MG_E_SPH] = e_sph; |
98 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
98 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
99 |
|
} else |
100 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
100 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
101 |
|
if (mg_ehand[MG_E_CYL] == NULL) { |
102 |
|
mg_ehand[MG_E_CYL] = e_cyl; |
103 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
103 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
104 |
|
} else |
105 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
105 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
106 |
|
if (mg_ehand[MG_E_CONE] == NULL) { |
107 |
|
mg_ehand[MG_E_CONE] = e_cone; |
108 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
108 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
109 |
|
} else |
110 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
110 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
111 |
|
if (mg_ehand[MG_E_RING] == NULL) { |
112 |
|
mg_ehand[MG_E_RING] = e_ring; |
113 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX; |
113 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX; |
114 |
|
} else |
115 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF; |
115 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
116 |
|
if (mg_ehand[MG_E_PRISM] == NULL) { |
117 |
|
mg_ehand[MG_E_PRISM] = e_prism; |
118 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
118 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
119 |
|
} else |
120 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
120 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
121 |
|
if (mg_ehand[MG_E_TORUS] == NULL) { |
122 |
|
mg_ehand[MG_E_TORUS] = e_torus; |
123 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX; |
123 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX; |
124 |
|
} else |
125 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF; |
125 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
126 |
|
if (mg_ehand[MG_E_COLOR] != NULL) { |
127 |
|
if (mg_ehand[MG_E_CMIX] == NULL) { |
128 |
|
mg_ehand[MG_E_CMIX] = e_cmix; |
129 |
< |
ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT; |
129 |
> |
ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT; |
130 |
|
} |
131 |
|
if (mg_ehand[MG_E_CSPEC] == NULL) { |
132 |
|
mg_ehand[MG_E_CSPEC] = e_cspec; |
133 |
< |
ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT; |
133 |
> |
ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT; |
134 |
|
} |
135 |
|
if (mg_ehand[MG_E_CCT] == NULL) { |
136 |
|
mg_ehand[MG_E_CCT] = e_cct; |
137 |
< |
ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT; |
137 |
> |
ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT; |
138 |
|
} |
139 |
|
} |
140 |
|
/* check for consistency */ |
141 |
|
if (mg_ehand[MG_E_FACE] != NULL) |
142 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
142 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
143 |
|
if (mg_ehand[MG_E_CXY] != NULL || mg_ehand[MG_E_CSPEC] != NULL || |
144 |
|
mg_ehand[MG_E_CMIX] != NULL) |
145 |
< |
uneed |= 1<<MG_E_COLOR; |
145 |
> |
uneed |= 1L<<MG_E_COLOR; |
146 |
|
if (mg_ehand[MG_E_RD] != NULL || mg_ehand[MG_E_TD] != NULL || |
147 |
|
mg_ehand[MG_E_IR] != NULL || |
148 |
|
mg_ehand[MG_E_ED] != NULL || |
149 |
|
mg_ehand[MG_E_RS] != NULL || |
150 |
|
mg_ehand[MG_E_TS] != NULL || |
151 |
|
mg_ehand[MG_E_SIDES] != NULL) |
152 |
< |
uneed |= 1<<MG_E_MATERIAL; |
152 |
> |
uneed |= 1L<<MG_E_MATERIAL; |
153 |
|
for (i = 0; i < MG_NENTITIES; i++) |
154 |
< |
if (uneed & 1<<i && mg_ehand[i] == NULL) { |
154 |
> |
if (uneed & 1L<<i && mg_ehand[i] == NULL) { |
155 |
|
fprintf(stderr, "Missing support for \"%s\" entity\n", |
156 |
|
mg_ename[i]); |
157 |
|
exit(1); |
158 |
|
} |
159 |
|
/* add support as needed */ |
160 |
< |
if (ineed & 1<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex) |
160 |
> |
if (ineed & 1L<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex) |
161 |
|
e_supp[MG_E_VERTEX] = c_hvertex; |
162 |
< |
if (ineed & 1<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex) |
162 |
> |
if (ineed & 1L<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex) |
163 |
|
e_supp[MG_E_POINT] = c_hvertex; |
164 |
< |
if (ineed & 1<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex) |
164 |
> |
if (ineed & 1L<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex) |
165 |
|
e_supp[MG_E_NORMAL] = c_hvertex; |
166 |
< |
if (ineed & 1<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor) |
166 |
> |
if (ineed & 1L<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor) |
167 |
|
e_supp[MG_E_COLOR] = c_hcolor; |
168 |
< |
if (ineed & 1<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor) |
168 |
> |
if (ineed & 1L<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor) |
169 |
|
e_supp[MG_E_CXY] = c_hcolor; |
170 |
< |
if (ineed & 1<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor) |
170 |
> |
if (ineed & 1L<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor) |
171 |
|
e_supp[MG_E_CSPEC] = c_hcolor; |
172 |
< |
if (ineed & 1<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor) |
172 |
> |
if (ineed & 1L<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor) |
173 |
|
e_supp[MG_E_CMIX] = c_hcolor; |
174 |
< |
if (ineed & 1<<MG_E_CCT && mg_ehand[MG_E_CCT] != c_hcolor) |
174 |
> |
if (ineed & 1L<<MG_E_CCT && mg_ehand[MG_E_CCT] != c_hcolor) |
175 |
|
e_supp[MG_E_CCT] = c_hcolor; |
176 |
|
/* discard remaining entities */ |
177 |
|
for (i = 0; i < MG_NENTITIES; i++) |
209 |
|
{ |
210 |
|
int rv; |
211 |
|
|
212 |
< |
if (en < 0 && (en = mg_entity(av[0])) < 0) |
212 |
> |
if (en < 0 && (en = mg_entity(av[0])) < 0) { /* unknown entity */ |
213 |
> |
if (mg_uhand != NULL) |
214 |
> |
return((*mg_uhand)(ac, av)); |
215 |
|
return(MG_EUNK); |
216 |
< |
if (e_supp[en] != NULL) { |
216 |
> |
} |
217 |
> |
if (e_supp[en] != NULL) { /* support handler */ |
218 |
|
if ((rv = (*e_supp[en])(ac, av)) != MG_OK) |
219 |
|
return(rv); |
220 |
|
} |
221 |
< |
return((*mg_ehand[en])(ac, av)); |
221 |
> |
return((*mg_ehand[en])(ac, av)); /* assigned handler */ |
222 |
|
} |
223 |
|
|
224 |
|
|
228 |
|
char *fn; |
229 |
|
{ |
230 |
|
static int nfids; |
222 |
– |
int olen; |
231 |
|
register char *cp; |
232 |
|
|
233 |
|
ctx->fid = ++nfids; |
240 |
|
return(MG_OK); |
241 |
|
} |
242 |
|
/* get name relative to this context */ |
243 |
< |
if (mg_file != NULL && |
236 |
< |
(cp = strrchr(mg_file->fname, '/')) != NULL) |
237 |
< |
olen = cp - mg_file->fname + 1; |
238 |
< |
else |
239 |
< |
olen = 0; |
240 |
< |
if (olen) |
243 |
> |
if (mg_file != NULL && (cp = strrchr(mg_file->fname, '/')) != NULL) { |
244 |
|
strcpy(ctx->fname, mg_file->fname); |
245 |
< |
strcpy(ctx->fname+olen, fn); |
245 |
> |
strcpy(ctx->fname+(cp-mg_file->fname+1), fn); |
246 |
> |
} else |
247 |
> |
strcpy(ctx->fname, fn); |
248 |
|
ctx->fp = fopen(ctx->fname, "r"); |
249 |
|
if (ctx->fp == NULL) |
250 |
|
return(MG_ENOFILE); |
304 |
|
if (fgets(mg_file->inpline+len, |
305 |
|
MG_MAXLINE-len, mg_file->fp) == NULL) |
306 |
|
return(len); |
302 |
– |
mg_file->lineno++; |
307 |
|
len += strlen(mg_file->inpline+len); |
308 |
< |
if (len > 1 && mg_file->inpline[len-2] == '\\') |
309 |
< |
mg_file->inpline[--len-1] = ' '; |
310 |
< |
} while (mg_file->inpline[len]); |
308 |
> |
if (len >= MG_MAXLINE-1) |
309 |
> |
return(len); |
310 |
> |
mg_file->lineno++; |
311 |
> |
} while (len > 1 && mg_file->inpline[len-2] == '\\'); |
312 |
|
|
313 |
|
return(len); |
314 |
|
} |
320 |
|
char abuf[MG_MAXLINE]; |
321 |
|
char *argv[MG_MAXARGC]; |
322 |
|
int en; |
323 |
< |
register char *cp, **ap; |
324 |
< |
|
325 |
< |
strcpy(cp=abuf, mg_file->inpline); |
326 |
< |
ap = argv; /* break into words */ |
323 |
> |
register char *cp, *cp2, **ap; |
324 |
> |
/* copy line, removing escape chars */ |
325 |
> |
cp = abuf; cp2 = mg_file->inpline; |
326 |
> |
while ((*cp++ = *cp2++)) |
327 |
> |
if (cp2[0] == '\n' && cp2[-1] == '\\') |
328 |
> |
cp--; |
329 |
> |
cp = abuf; ap = argv; /* break into words */ |
330 |
|
for ( ; ; ) { |
331 |
|
while (isspace(*cp)) |
332 |
|
*cp++ = '\0'; |
352 |
|
{ |
353 |
|
MG_FCTXT cntxt; |
354 |
|
int rval; |
355 |
+ |
register int nbr; |
356 |
|
|
357 |
|
if ((rval = mg_open(&cntxt, fn)) != MG_OK) { |
358 |
|
fprintf(stderr, "%s: %s\n", fn, mg_err[rval]); |
359 |
|
return(rval); |
360 |
|
} |
361 |
< |
while (mg_read()) /* parse each line */ |
361 |
> |
while ((nbr = mg_read()) > 0) { /* parse each line */ |
362 |
> |
if (nbr >= MG_MAXLINE-1) { |
363 |
> |
fprintf(stderr, "%s: %d: %s\n", cntxt.fname, |
364 |
> |
cntxt.lineno, mg_err[rval=MG_ELINE]); |
365 |
> |
break; |
366 |
> |
} |
367 |
|
if ((rval = mg_parse()) != MG_OK) { |
368 |
|
fprintf(stderr, "%s: %d: %s:\n%s", cntxt.fname, |
369 |
|
cntxt.lineno, mg_err[rval], |
370 |
|
cntxt.inpline); |
371 |
|
break; |
372 |
|
} |
373 |
+ |
} |
374 |
|
mg_close(); |
375 |
|
return(rval); |
376 |
|
} |
377 |
|
|
378 |
|
|
379 |
+ |
int |
380 |
+ |
mg_defuhand(ac, av) /* default handler for unknown entities */ |
381 |
+ |
int ac; |
382 |
+ |
char **av; |
383 |
+ |
{ |
384 |
+ |
if (mg_nunknown++ == 0) /* report first incident */ |
385 |
+ |
fprintf(stderr, "%s: %d: %s: %s\n", mg_file->fname, |
386 |
+ |
mg_file->lineno, mg_err[MG_EUNK], av[0]); |
387 |
+ |
return(MG_OK); |
388 |
+ |
} |
389 |
+ |
|
390 |
+ |
|
391 |
|
void |
392 |
|
mg_clear() /* clear parser history */ |
393 |
|
{ |
417 |
|
{ |
418 |
|
char *xfarg[MG_MAXARGC]; |
419 |
|
MG_FCTXT ictx; |
420 |
< |
int rv; |
420 |
> |
XF_SPEC *xf_orig = xf_context; |
421 |
> |
register int rv; |
422 |
|
|
423 |
|
if (ac < 2) |
424 |
|
return(MG_EARGC); |
431 |
|
for (i = 1; i < ac-1; i++) |
432 |
|
xfarg[i] = av[i+1]; |
433 |
|
xfarg[ac-1] = NULL; |
434 |
< |
if ((rv = mg_handle(MG_E_XF, ac-1, xfarg)) != MG_OK) |
434 |
> |
if ((rv = mg_handle(MG_E_XF, ac-1, xfarg)) != MG_OK) { |
435 |
> |
mg_close(); |
436 |
|
return(rv); |
437 |
+ |
} |
438 |
|
} |
439 |
< |
while (!feof(mg_file->fp)) { |
440 |
< |
while (mg_read()) |
439 |
> |
do { |
440 |
> |
while ((rv = mg_read()) > 0) { |
441 |
> |
if (rv >= MG_MAXLINE-1) { |
442 |
> |
fprintf(stderr, "%s: %d: %s\n", ictx.fname, |
443 |
> |
ictx.lineno, mg_err[MG_ELINE]); |
444 |
> |
mg_close(); |
445 |
> |
return(MG_EINCL); |
446 |
> |
} |
447 |
|
if ((rv = mg_parse()) != MG_OK) { |
448 |
|
fprintf(stderr, "%s: %d: %s:\n%s", ictx.fname, |
449 |
|
ictx.lineno, mg_err[rv], |
451 |
|
mg_close(); |
452 |
|
return(MG_EINCL); |
453 |
|
} |
454 |
+ |
} |
455 |
|
if (ac > 2) |
456 |
< |
if ((rv = mg_handle(MG_E_XF, 1, xfarg)) != MG_OK) |
456 |
> |
if ((rv = mg_handle(MG_E_XF, 1, xfarg)) != MG_OK) { |
457 |
> |
mg_close(); |
458 |
|
return(rv); |
459 |
< |
} |
459 |
> |
} |
460 |
> |
} while (xf_context != xf_orig); |
461 |
|
mg_close(); |
462 |
|
return(MG_OK); |
463 |
|
} |
754 |
|
static char *p4ent[5] = {mg_ename[MG_E_POINT],p4[0],p4[1],p4[2]}; |
755 |
|
static char *n4ent[5] = {mg_ename[MG_E_NORMAL],n4[0],n4[1],n4[2]}; |
756 |
|
static char *fent[6] = {mg_ename[MG_E_FACE],"_cv1","_cv2","_cv3","_cv4"}; |
757 |
+ |
char *v1n; |
758 |
|
register C_VERTEX *cv1, *cv2; |
759 |
|
register int i, j; |
760 |
|
FVECT u, v, w; |
770 |
|
if ((cv1 = c_getvert(av[1])) == NULL || |
771 |
|
(cv2 = c_getvert(av[3])) == NULL) |
772 |
|
return(MG_EUNDEF); |
773 |
+ |
v1n = av[1]; |
774 |
|
if (!isflt(av[2]) || !isflt(av[4])) |
775 |
|
return(MG_ETYPE); |
776 |
|
rad1 = atof(av[2]); |
789 |
|
cv = cv1; |
790 |
|
cv1 = cv2; |
791 |
|
cv2 = cv; |
792 |
+ |
v1n = av[3]; |
793 |
|
d = rad1; |
794 |
|
rad1 = rad2; |
795 |
|
rad2 = d; |
823 |
|
if ((rv = mg_handle(MG_E_NORMAL, 4, n3ent)) != MG_OK) |
824 |
|
return(rv); |
825 |
|
if (rad1 == 0.) { /* triangles */ |
826 |
< |
v1ent[3] = av[1]; |
826 |
> |
v1ent[3] = v1n; |
827 |
|
if ((rv = mg_handle(MG_E_VERTEX, 4, v1ent)) != MG_OK) |
828 |
|
return(rv); |
829 |
|
for (j = 0; j < 3; j++) |