stdio-common/tstscanf.c

   1 /* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <ansidecl.h>
  20 #ifdef  BSD
  21 #include </usr/include/stdio.h>
  22 #else
  23 #include <stdio.h>
  24 #endif
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28
  29 int
  30 DEFUN(main, (argc, argv), int argc AND char **argv)
  31 {
  32   char buf[BUFSIZ];
  33   FILE *in = stdin, *out = stdout;
  34   int x;
  35
  36   if (sscanf ("0", "%d", &x) != 1)
  37     exit (EXIT_FAILURE);
  38
  39   sscanf ("conversion] Zero flag Ze]ro#\n", "%*[^]] %[^#]\n", buf);
  40   if (strcmp (buf, "] Zero flag Ze]ro") != 0)
  41     {
  42       fputs ("test failed!", stderr);
  43       return 1;
  44     }
  45
  46   if (argc == 2 && !strcmp (argv[1], "-opipe"))
  47     {
  48       out = popen ("/bin/cat", "w");
  49       if (out == NULL)
  50         {
  51           perror ("popen: /bin/cat");
  52           exit (EXIT_FAILURE);
  53         }
  54     }
  55   else if (argc == 3 && !strcmp (argv[1], "-ipipe"))
  56     {
  57       sprintf (buf, "/bin/cat %s", argv[2]);
  58       in = popen (buf, "r");
  59     }
  60
  61   {
  62     char name[50];
  63     fprintf (out,
  64              "sscanf (\"thompson\", \"%%s\", name) == %d, name == \"%s\"\n",
  65              sscanf ("thompson", "%s", name),
  66              name);
  67   }
  68
  69   fputs ("Testing scanf (vfscanf)\n", out);
  70
  71   fputs ("Test 1:\n", out);
  72   {
  73     int n, i;
  74     float x;
  75     char name[50];
  76     n = fscanf (in, "%d%f%s", &i, &x, name);
  77     fprintf (out, "n = %d, i = %d, x = %f, name = \"%.50s\"\n",
  78              n, i, x, name);
  79   }
  80   fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in));
  81   fputs ("Test 2:\n", out);
  82   {
  83     int i;
  84     float x;
  85     char name[50];
  86     (void) fscanf (in, "%2d%f%*d %[0123456789]", &i, &x, name);
  87     fprintf (out, "i = %d, x = %f, name = \"%.50s\"\n", i, x, name);
  88   }
  89   fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in));
  90   fputs ("Test 3:\n", out);
  91   {
  92     float quant;
  93     char units[21], item[21];
  94     while (!feof (in) && !ferror (in))
  95       {
  96         int count;
  97         quant = 0.0;
  98         units[0] = item[0] = '\0';
  99         count = fscanf (in, "%f%20s of %20s", &quant, units, item);
 100         (void) fscanf (in, "%*[^\n]");
 101         fprintf (out, "count = %d, quant = %f, item = %.21s, units = %.21s\n",
 102                  count, quant, item, units);
 103       }
 104   }
 105   fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in));
 106
 107   if (out != stdout)
 108     pclose (out);
 109
 110   exit(EXIT_SUCCESS);
 111 }