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1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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4 | */
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5 |
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6 | #include "libbb.h"
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7 |
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8 | /* returns the array index of the string */
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9 | /* (index of first match is returned, or -1) */
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10 | int index_in_str_array(const char *const string_array[], const char *key)
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11 | {
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12 | int i;
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13 |
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14 | for (i = 0; string_array[i] != 0; i++) {
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15 | if (strcmp(string_array[i], key) == 0) {
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16 | return i;
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17 | }
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18 | }
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19 | return -1;
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20 | }
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21 |
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22 | int index_in_strings(const char *strings, const char *key)
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23 | {
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24 | int idx = 0;
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25 |
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26 | while (strings[0]) {
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27 | if (strcmp(strings, key) == 0) {
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28 | return idx;
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29 | }
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30 | strings += strlen(strings) + 1; /* skip NUL */
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31 | idx++;
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32 | }
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33 | return -1;
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34 | }
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35 |
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36 | /* returns the array index of the string, even if it matches only a beginning */
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37 | /* (index of first match is returned, or -1) */
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38 | #ifdef UNUSED
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39 | int index_in_substr_array(const char *const string_array[], const char *key)
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40 | {
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41 | int i;
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42 | int len = strlen(key);
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43 | if (len) {
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44 | for (i = 0; string_array[i] != 0; i++) {
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45 | if (strncmp(string_array[i], key, len) == 0) {
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46 | return i;
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47 | }
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48 | }
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49 | }
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50 | return -1;
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51 | }
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52 | #endif
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53 |
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54 | int index_in_substrings(const char *strings, const char *key)
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55 | {
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56 | int len = strlen(key);
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57 |
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58 | if (len) {
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59 | int idx = 0;
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60 | while (strings[0]) {
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61 | if (strncmp(strings, key, len) == 0) {
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62 | return idx;
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63 | }
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64 | strings += strlen(strings) + 1; /* skip NUL */
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65 | idx++;
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66 | }
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67 | }
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68 | return -1;
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69 | }
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