static void
cont_xy_store(PLFLT xx, PLFLT yy)
{
if (cont3d) {
PLINT pts = currline->npts;
if (pts % LINE_ITEMS == 0)
realloc_line(currline);
currline->x[pts] = xx;
currline->y[pts] = yy;
currline->npts++;
} else
plP_drawor(xx, yy);
}
static int
read_line(
FILE *fd,
Line *line)
{
char buf[BUFSIZE], *p;
int len;
int quoted = 0; /* quoted by double quote? */
char *str;
int cur;
str = line->str;
cur = line->cursize = 0;
while ((p = fgets(buf, BUFSIZE, fd)) != NULL) {
++line->seq;
zap_comment(p, "ed); /* remove comment line */
len = strlen(p);
if (len == 0) {
if (cur > 0) {
break;
}
continue;
}
if (cur + len + 1 > line->maxsize) {
/* need to reallocate buffer. */
if (! realloc_line(line, line->maxsize + BUFSIZE)) {
return -1; /* realloc error. */
}
str = line->str;
}
strncpy(str + cur, p, len);
cur += len;
str[cur] = '\0';
#ifdef __UNIXOS2__ /* Take out carriage returns under OS/2 */
if (cur>1) {
if (str[cur-2] == '\r' && str[cur-1] == '\n') {
str[cur-2] = '\n';
str[cur-1] = '\0';
cur--;
}
}
#endif
if (!quoted && cur > 1 && str[cur - 2] == SYM_BACKSLASH &&
(str[cur - 1] == SYM_NEWLINE || str[cur-1] == SYM_CR)) {
/* the line is ended backslash followed by newline.
need to concatinate the next line. */
cur -= 2;
str[cur] = '\0';
} else if (len < BUFSIZE - 1 || buf[len - 1] == SYM_NEWLINE ||
buf[len - 1] == SYM_CR) {
/* the line is shorter than BUFSIZE. */
break;
}
}
if (quoted) {
/* error. still in quoted state. */
return -1;
}
return line->cursize = cur;
}
