6 obj **objlist = 0; /* store the elements here */
7 int nobjlist = 0; /* size of objlist array */
10 Attr *attr; /* attributes stored here as collected */
12 int nattr = 0; /* number of entries in attr_list */
14 Text *text = 0; /* text strings stored here as collected */
15 int ntextlist = 0; /* size of text[] array */
17 int ntext1 = 0; /* record ntext here on entry to each figure */
22 int hvmode = R_DIR; /* R => join left to right, D => top to bottom, etc. */
24 int codegen = 0; /* 1=>output for this picture; 0=>no output */
25 int PEseen = 0; /* 1=> PE seen during parsing */
27 double deltx = 6; /* max x value in output, for scaling */
28 double delty = 6; /* max y value in output, for scaling */
33 int anyerr = 0; /* becomes 1 if synerr ever 1 */
36 double xmin = 30000; /* min values found in actual data */
38 double xmax = -30000; /* max */
42 main(int argc, char **argv)
45 extern void fpecatch(int);
47 signal(SIGFPE, fpecatch);
49 while (argc > 1 && *argv[1] == '-') {
52 dbg = atoi(&argv[1][2]);
61 objlist = (obj **) grow((char *)objlist, "objlist", nobjlist += 1000, sizeof(obj *));
62 text = (Text *) grow((char *)text, "text", ntextlist += 1000, sizeof(Text));
63 attr = (Attr *) grow((char *)attr, "attr", nattrlist += 100, sizeof(Attr));
65 sprintf(buf, "/%d/", getpid());
70 pushsrc(File, curfile->fname);
73 curfile->fname = tostring("-");
77 if ((curfile->fin = fopen(*++argv, "r")) == NULL) {
78 fprintf(stderr, "%s: can't open %s\n", cmdname, *argv);
81 curfile->fname = tostring(*argv);
93 ERROR "floating point exception" FATAL;
97 grow(char *ptr, char *name, int num, int size) /* make array bigger */
102 p = malloc(num * size);
104 p = realloc(ptr, num * size);
106 ERROR "can't grow %s to %d", name, num * size FATAL;
113 short scalable; /* 1 => adjust when "scale" changes */
126 "ellipsewid", WID, 1,
129 "arrowhead", 2, 0, /* arrowhead style */
130 "textht", 0.0, 1, /* 6 lines/inch is also a useful value */
133 "maxpswid", MAXWID, 0,
134 "fillval", 0.3, 0, /* gray value for filling boxes */
139 setdefaults(void) /* set default sizes for variables like boxht */
144 for (i = 0; defaults[i].name != NULL; i++) {
145 v.f = defaults[i].val;
146 makevar(tostring(defaults[i].name), VARNAME, v);
151 resetvar(void) /* reset variables listed */
155 if (nattr == 0) { /* none listed, so do all */
159 for (i = 0; i < nattr; i++) {
160 for (j = 0; defaults[j].name != NULL; j++)
161 if (strcmp(defaults[j].name, attr[i].a_val.p) == 0) {
162 setfval(defaults[j].name, defaults[j].val);
163 free(attr[i].a_val.p);
170 checkscale(char *s) /* if s is "scale", adjust default variables */
175 if (strcmp(s, "scale") == 0) {
176 scale = getfval("scale");
177 for (i = 1; defaults[i].name != NULL; i++)
178 if (defaults[i].scalable)
179 setfval(defaults[i].name, defaults[i].val * scale);
186 char *p, buf[1000], buf1[100];
190 printlf(1, curfile->fname);
191 while (fgets(buf, sizeof buf, curfile->fin) != NULL) {
193 if (*buf == '.' && *(buf+1) == 'P' && *(buf+2) == 'S') {
194 for (p = &buf[3]; *p == ' '; p++)
199 sscanf(p, "%s", buf1);
200 if ((curfile->fin=fopen(buf1, "r")) == NULL)
201 ERROR "can't open %s", buf1 FATAL;
202 curfile->fname = tostring(buf1);
204 fclose(curfile->fin);
205 free(curfile->fname);
207 printlf(curfile->lineno, curfile->fname);
213 /* yylval.i now contains 'E' or 'F' from .PE or .PF */
215 deltx = (xmax - xmin) / getfval("scale");
216 delty = (ymax - ymin) / getfval("scale");
217 if (buf[3] == ' ') { /* next things are wid & ht */
218 if (sscanf(&buf[4],"%lf %lf", &deltx, &delty) < 2)
219 delty = deltx * (ymax-ymin) / (xmax-xmin);
221 /* double xfac, yfac; */
222 /* xfac = deltx / (xmax-xmin);
223 /* yfac = delty / (ymax-ymin);
225 /* delty = xfac * (ymax-ymin);
227 /* deltx = yfac * (xmax-xmin);
231 dprintf("deltx = %g, delty = %g\n", deltx, delty);
232 if (codegen && !synerr) {
233 openpl(); /* puts out .PS, with ht & wid stuck in */
234 printlf(curfile->lineno+1, NULL);
235 print(); /* assumes \n at end */
236 closepl(); /* does the .PE/F */
238 printlf(curfile->lineno+1, NULL);
240 } else if (buf[0] == '.' && buf[1] == 'l' && buf[2] == 'f') {
241 if (sscanf(buf+3, "%d %s", &ln, buf1) == 2) {
242 free(curfile->fname);
243 printlf(curfile->lineno = ln, curfile->fname = tostring(buf1));
245 printlf(curfile->lineno = ln, NULL);
258 for (i = 0; i < nobj; i++) {
260 if (op->o_type == BLOCK)
261 freesymtab(op->o_symtab);
262 free((char *)objlist[i]);
266 for (i = 0; i < ntext; i++)
270 codegen = synerr = 0;
276 xmax = ymax = -30000;