FreeCalypso > hg > freecalypso-hwlab
annotate lcdtest/dispatch.c @ 19:f3671d3ad953
lcdtest: added cd command to avoid typing long pathnames for show
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 10 Apr 2018 23:37:19 +0000 |
parents | 43cc53581975 |
children | 2e4f27ea7067 |
rev | line source |
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12
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1 #include <ctype.h> |
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2 #include <stdio.h> |
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3 #include <string.h> |
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4 #include <strings.h> |
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5 #include <stdlib.h> |
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6 |
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7 extern int cmd_cd(); |
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8 extern int cmd_fc(); |
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9 extern int cmd_fr(); |
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10 extern int cmd_rd(); |
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11 extern int cmd_ri(); |
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12 extern int cmd_show(); |
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13 extern int cmd_wd(); |
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14 extern int cmd_wi(); |
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15 extern int cmd_wr(); |
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16 |
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17 extern int reset_pulse(); |
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18 |
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19 cmd_exit() |
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20 { |
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21 exit(0); |
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22 } |
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23 |
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24 static struct cmdtab { |
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25 char *cmd; |
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26 int minargs; |
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27 int maxargs; |
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28 int (*func)(); |
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29 } cmdtab[] = { |
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30 {"cd", 1, 1, cmd_cd}, |
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31 {"exit", 0, 0, cmd_exit}, |
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32 {"fc", 1, 16, cmd_fc}, |
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33 {"fr", 1, 1, cmd_fr}, |
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34 {"quit", 0, 0, cmd_exit}, |
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35 {"rd", 0, 0, cmd_rd}, |
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36 {"reset", 0, 0, reset_pulse}, |
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37 {"ri", 0, 0, cmd_ri}, |
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38 {"show", 1, 1, cmd_show}, |
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39 {"wd", 1, 1, cmd_wd}, |
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40 {"wi", 1, 1, cmd_wi}, |
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41 {"wr", 2, 2, cmd_wr}, |
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42 {0, 0, 0, 0} |
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43 }; |
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44 |
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45 dispatch_cmd(cmd) |
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46 char *cmd; |
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47 { |
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48 char *argv[18]; |
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49 char *cp, **ap; |
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50 struct cmdtab *tp; |
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51 |
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52 for (cp = cmd; isspace(*cp); cp++) |
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53 ; |
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54 if (!*cp || *cp == '#') |
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55 return(0); |
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56 argv[0] = cp; |
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57 while (*cp && !isspace(*cp)) |
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58 cp++; |
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59 if (*cp) |
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60 *cp++ = '\0'; |
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61 for (tp = cmdtab; tp->cmd; tp++) |
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62 if (!strcmp(tp->cmd, argv[0])) |
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63 break; |
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64 if (!tp->func) { |
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65 fprintf(stderr, "error: no such command\n"); |
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66 return(-1); |
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67 } |
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68 for (ap = argv + 1; ; ) { |
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69 while (isspace(*cp)) |
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70 cp++; |
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71 if (!*cp || *cp == '#') |
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72 break; |
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73 if (ap - argv - 1 >= tp->maxargs) { |
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74 fprintf(stderr, "error: too many arguments\n"); |
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75 return(-1); |
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76 } |
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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 if (ap - argv - 1 < tp->minargs) { |
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84 fprintf(stderr, "error: too few arguments\n"); |
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85 return(-1); |
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86 } |
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87 *ap = 0; |
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88 return tp->func(ap - argv, argv); |
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89 } |