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1432
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1 main () |
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2 { |
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3 char line[1024], *t; |
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4 int len, done = 0; |
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5 |
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6 line[0] = 0; |
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7 |
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8 using_history (); |
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9 while (!done) |
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10 { |
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11 printf ("history$ "); |
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12 fflush (stdout); |
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13 t = fgets (line, sizeof (line) - 1, stdin); |
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14 if (t && *t) |
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15 { |
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16 len = strlen (t); |
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17 if (t[len - 1] == '\n') |
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18 t[len - 1] = '\0'; |
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19 } |
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20 |
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21 if (!t) |
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22 strcpy (line, "quit"); |
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23 |
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24 if (line[0]) |
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25 { |
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26 char *expansion; |
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27 int result; |
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28 |
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29 using_history (); |
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30 |
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31 result = history_expand (line, &expansion); |
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32 if (result) |
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33 fprintf (stderr, "%s\n", expansion); |
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34 |
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35 if (result < 0 || result == 2) |
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36 { |
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37 free (expansion); |
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38 continue; |
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39 } |
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40 |
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41 add_history (expansion); |
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42 strncpy (line, expansion, sizeof (line) - 1); |
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43 free (expansion); |
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44 } |
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45 |
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46 if (strcmp (line, "quit") == 0) |
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47 done = 1; |
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48 else if (strcmp (line, "save") == 0) |
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49 write_history ("history_file"); |
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50 else if (strcmp (line, "read") == 0) |
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51 read_history ("history_file"); |
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52 else if (strcmp (line, "list") == 0) |
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53 { |
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54 register HIST_ENTRY **the_list; |
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55 register int i; |
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56 |
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57 the_list = history_list (); |
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58 if (the_list) |
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59 for (i = 0; the_list[i]; i++) |
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60 printf ("%d: %s\n", i + history_base, the_list[i]->line); |
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61 } |
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62 else if (strncmp (line, "delete", 6) == 0) |
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63 { |
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64 int which; |
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65 if ((sscanf (line + 6, "%d", &which)) == 1) |
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66 { |
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67 HIST_ENTRY *entry = remove_history (which); |
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68 if (!entry) |
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69 fprintf (stderr, "No such entry %d\n", which); |
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70 else |
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71 { |
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72 free (entry->line); |
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73 free (entry); |
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74 } |
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75 } |
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76 else |
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77 { |
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78 fprintf (stderr, "non-numeric arg given to `delete'\n"); |
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79 } |
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80 } |
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81 } |
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82 } |
