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[/] [or1k/] [trunk/] [gdb-5.0/] [readline/] [examples/] [histexamp.c] - Blame information for rev 1774

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Line No. Rev Author Line
1 106 markom 
main ()
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{
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  char line[1024], *t;
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  int len, done = 0;
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  line[0] = 0;
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  using_history ();
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  while (!done)
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    {
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      printf ("history$ ");
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      fflush (stdout);
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      t = fgets (line, sizeof (line) - 1, stdin);
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      if (t && *t)
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        {
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          len = strlen (t);
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          if (t[len - 1] == '\n')
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            t[len - 1] = '\0';
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        }
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      if (!t)
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        strcpy (line, "quit");
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      if (line[0])
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        {
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          char *expansion;
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          int result;
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          using_history ();
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          result = history_expand (line, &expansion);
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          if (result)
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            fprintf (stderr, "%s\n", expansion);
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          if (result < 0 || result == 2)
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            {
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              free (expansion);
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              continue;
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            }
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          add_history (expansion);
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          strncpy (line, expansion, sizeof (line) - 1);
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          free (expansion);
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        }
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      if (strcmp (line, "quit") == 0)
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        done = 1;
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      else if (strcmp (line, "save") == 0)
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        write_history ("history_file");
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      else if (strcmp (line, "read") == 0)
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        read_history ("history_file");
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      else if (strcmp (line, "list") == 0)
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        {
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          register HIST_ENTRY **the_list;
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          register int i;
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          the_list = history_list ();
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          if (the_list)
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            for (i = 0; the_list[i]; i++)
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              printf ("%d: %s\n", i + history_base, the_list[i]->line);
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        }
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      else if (strncmp (line, "delete", 6) == 0)
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        {
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          int which;
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          if ((sscanf (line + 6, "%d", &which)) == 1)
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            {
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              HIST_ENTRY *entry = remove_history (which);
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              if (!entry)
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                fprintf (stderr, "No such entry %d\n", which);
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              else
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                {
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                  free (entry->line);
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                  free (entry);
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                }
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            }
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          else
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            {
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              fprintf (stderr, "non-numeric arg given to `delete'\n");
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            }
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        }
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    }
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}

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