414
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1 /* |
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2 * Copy me if you can. |
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3 * by 20h |
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4 */ |
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5 |
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6 #ifndef ARG_H__ |
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7 #define ARG_H__ |
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8 |
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9 extern char *argv0; |
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10 |
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11 /* use main(int argc, char *argv[]) */ |
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12 #define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ |
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13 argv[0] && argv[0][0] == '-'\ |
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14 && argv[0][1];\ |
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15 argc--, argv++) {\ |
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16 char argc_;\ |
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17 char **argv_;\ |
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18 int brk_;\ |
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19 if (argv[0][1] == '-' && argv[0][2] == '\0') {\ |
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20 argv++;\ |
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21 argc--;\ |
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22 break;\ |
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23 }\ |
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24 for (brk_ = 0, argv[0]++, argv_ = argv;\ |
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25 argv[0][0] && !brk_;\ |
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26 argv[0]++) {\ |
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27 if (argv_ != argv)\ |
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28 break;\ |
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29 argc_ = argv[0][0];\ |
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30 switch (argc_) |
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31 |
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32 #define ARGEND }\ |
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33 } |
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34 |
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35 #define ARGC() argc_ |
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36 |
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37 #define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\ |
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38 ((x), abort(), (char *)0) :\ |
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39 (brk_ = 1, (argv[0][1] != '\0')?\ |
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40 (&argv[0][1]) :\ |
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41 (argc--, argv++, argv[0]))) |
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42 |
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43 #define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\ |
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44 (char *)0 :\ |
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45 (brk_ = 1, (argv[0][1] != '\0')?\ |
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46 (&argv[0][1]) :\ |
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47 (argc--, argv++, argv[0]))) |
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48 |
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49 #endif |