FreeCalypso > hg > freecalypso-tools
annotate rvinterf/old/g23sh/usercmd.c @ 421:ab8fb95a28da
rvinterf/rvtat converted to use libinterf
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 27 Oct 2018 23:48:20 +0000 |
parents | e7502631a0f9 |
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rev | line source |
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0
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1 /* |
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2 * This module implements g23sh user command dispatch. |
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3 */ |
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4 |
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5 #include <sys/types.h> |
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6 #include <ctype.h> |
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7 #include <stdio.h> |
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8 #include <string.h> |
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9 #include <strings.h> |
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10 #include <stdlib.h> |
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11 |
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12 extern char usercmd[]; |
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13 |
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14 extern void cmd_sendsp(); |
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15 |
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16 void |
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17 cmd_exit() |
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18 { |
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19 tty_cleanup(); |
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20 exit(0); |
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21 } |
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22 |
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23 static struct cmdtab { |
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24 char *cmd; |
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25 int minargs; |
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26 int maxargs; |
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27 void (*func)(); |
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28 } cmdtab[] = { |
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29 {"exit", 0, 0, cmd_exit}, |
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30 {"quit", 0, 0, cmd_exit}, |
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31 {"sp", 2, 2, cmd_sendsp}, |
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32 {0, 0, 0, 0} |
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33 }; |
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34 |
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35 void |
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36 dispatch_user_cmd() |
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37 { |
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38 char *argv[10]; |
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39 char *cp, **ap; |
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40 struct cmdtab *tp; |
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41 |
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42 for (cp = usercmd; isspace(*cp); cp++) |
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43 ; |
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44 if (!*cp || *cp == '#') |
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45 return; |
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46 argv[0] = cp; |
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47 while (*cp && !isspace(*cp)) |
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48 cp++; |
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49 if (*cp) |
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50 *cp++ = '\0'; |
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51 for (tp = cmdtab; tp->cmd; tp++) |
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52 if (!strcmp(tp->cmd, argv[0])) |
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53 break; |
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54 if (!tp->func) { |
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55 printf("error: no such command\n"); |
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56 return; |
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57 } |
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58 for (ap = argv + 1; ; ) { |
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59 while (isspace(*cp)) |
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60 cp++; |
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61 if (!*cp || *cp == '#') |
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62 break; |
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63 if (ap - argv - 1 >= tp->maxargs) { |
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64 printf("error: too many arguments\n"); |
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65 return; |
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66 } |
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67 if (*cp == '"') { |
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68 *ap++ = ++cp; |
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69 while (*cp && *cp != '"') |
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70 cp++; |
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71 if (*cp != '"') { |
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72 printf("error: unterminated quoted string\n"); |
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73 return; |
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74 } |
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75 *cp++ = '\0'; |
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76 } else { |
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77 *ap++ = cp; |
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78 while (*cp && !isspace(*cp)) |
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79 cp++; |
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80 if (*cp) |
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81 *cp++ = '\0'; |
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82 } |
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83 } |
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84 if (ap - argv - 1 < tp->minargs) { |
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85 printf("error: too few arguments\n"); |
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86 return; |
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87 } |
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88 *ap = 0; |
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89 tp->func(ap - argv, argv); |
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90 } |