- dstr_ensure(d, 2);
- if (!fgets(d->p + d->len, d->sz - d->len, fp)) break;
- n = strlen(d->p + d->len); assert(n > 0); any = 1;
- d->len += n;
- if (d->p[d->len - 1] == '\n') { d->p[--d->len] = 0; break; }
+ if (p == lim) {
+ n = d->len = p - d->p; dstr_ensure(d, 1);
+ p = d->p + n; lim = d->p + d->sz;
+ }
+ if (ch == EOF || ch == '\n') break;
+ *p++ = ch; ch = getc(fp);