124       int c;  in unexpand()  local
158           while ((c = getc (fp)) < 0 && (fp = next_file (fp)))  in unexpand()
163               bool blank = !! isblank (c);  in unexpand()
180                       if (c == '\t')  in unexpand()
197                               pending_blank[pending++] = c;  in unexpand()
203                           pending_blank[0] = c = '\t';  in unexpand()
211               else if (c == '\b')  in unexpand()
240           if (c < 0)  in unexpand()
246           if (putchar (c) < 0)  in unexpand()
249       while (c != '\n');  in unexpand()
258   int c;  in main()  local
272   while ((c = getopt_long (argc, argv, ",0123456789at:", longopts, nullptr))  in main()
275       switch (c)  in main()
302           if (!DECIMAL_DIGIT_ACCUMULATE (tabval, c - '0', uintmax_t))  in main()