| 1 | // ============================================================ // |
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| 2 | // // |
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| 3 | // File : arb_strarray.cxx // |
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| 4 | // Purpose : handle arrays of strings // |
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| 5 | // // |
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| 6 | // Coded by Ralf Westram (coder@reallysoft.de) in July 2011 // |
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| 7 | // Institute of Microbiology (Technical University Munich) // |
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| 8 | // http://www.arb-home.de/ // |
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| 9 | // // |
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| 10 | // ============================================================ // |
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| 11 | |
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| 12 | #include "arb_strarray.h" |
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| 13 | |
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| 14 | #include <arb_str.h> |
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| 15 | #include <arb_strbuf.h> |
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| 16 | #include <arb_sort.h> |
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| 17 | |
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| 18 | void CharPtrArray::sort(CharPtrArray_compare_fun compare, void *client_data) { |
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| 19 | /*! sort the array |
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| 20 | * @see sort_and_uniq for parameters |
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| 21 | */ |
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| 22 | GB_sort((void**)str, 0, size(), compare, client_data); |
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| 23 | } |
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| 24 | |
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| 25 | void CharPtrArray::uniq(CharPtrArray_compare_fun compare, void *client_data) { |
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| 26 | /*! remove consecutive equal elements |
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| 27 | * @see sort_and_uniq for parameters |
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| 28 | */ |
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| 29 | for (int i = size()-2; i >= 0; --i) { |
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| 30 | if (compare(str[i], str[i+1], client_data) == 0) { |
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| 31 | remove(i+1); |
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| 32 | } |
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| 33 | } |
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| 34 | } |
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| 35 | |
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| 36 | /* ---------------------------------------- |
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| 37 | * conversion between |
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| 38 | * |
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| 39 | * - char ** (heap-allocated array of heap-allocated char*'s) |
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| 40 | * - one string containing several substrings separated by a separator |
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| 41 | * (e.g. "name1,name2,name3") |
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| 42 | */ |
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| 43 | |
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| 44 | // @@@ search for code which is splitting strings and use GBT_split_string there |
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| 45 | // @@@ rename to GBS_split_string and move to string functions |
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| 46 | |
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| 47 | void GBT_splitNdestroy_string(ConstStrArray& names, char*& namelist, const char *separator, SplitMode mode) { |
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| 48 | /*! Split 'namelist' into an array of substrings at each member of 'separator'. |
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| 49 | * |
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| 50 | * @param names pointers to split parts (into namelist) |
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| 51 | * @param namelist string containing separator delimited parts |
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| 52 | * @param separator contains all characters handled as separators |
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| 53 | * @param mode if SPLIT_DROPEMPTY, empty tokens will be skipped |
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| 54 | * |
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| 55 | * Example: |
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| 56 | * @code |
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| 57 | * ConstStrArray array; |
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| 58 | * char *list = ARB_strdup("Peter;Paul;Mary"); |
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| 59 | * GBT_splitNdestroy_string(array, list, ";", SPLIT_KEEPEMPTY); |
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| 60 | * // array[1] contains "Paul" |
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| 61 | * @endcode |
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| 62 | * |
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| 63 | * ownership of namelist is transferred to 'names' |
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| 64 | */ |
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| 65 | |
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| 66 | names.set_memblock(namelist); |
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| 67 | |
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| 68 | char *sep = namelist; |
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| 69 | while (sep) { |
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| 70 | size_t nonsepcount = strcspn(sep, separator); |
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| 71 | if (nonsepcount || mode == SPLIT_KEEPEMPTY) { |
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| 72 | names.put(sep); |
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| 73 | sep += nonsepcount; |
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| 74 | } |
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| 75 | size_t sepcount = strspn(sep, separator); |
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| 76 | sep[0] = 0; |
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| 77 | if (sepcount) { |
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| 78 | if (mode == SPLIT_KEEPEMPTY) { |
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| 79 | for (size_t s = 1; s<sepcount; ++s) names.put(sep); |
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| 80 | } |
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| 81 | sep += sepcount; |
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| 82 | } |
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| 83 | else { |
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| 84 | sep = NULp; |
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| 85 | } |
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| 86 | } |
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| 87 | namelist = NULp; // own it |
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| 88 | } |
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| 89 | |
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| 90 | void GBT_splitNdestroy_string(ConstStrArray& dest, char*& namelist, char separator) { |
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| 91 | char separator_string[] = "x"; |
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| 92 | separator_string[0] = separator; |
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| 93 | GBT_splitNdestroy_string(dest, namelist, separator_string, SPLIT_KEEPEMPTY); |
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| 94 | } |
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| 95 | |
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| 96 | char *GBT_join_strings(const CharPtrArray& strings, char separator) { |
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| 97 | /*! Joins a NULp-terminated array of 'char*' into one string |
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| 98 | * |
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| 99 | * @param strings array of strings to join (maybe generated using GBT_split_string() or GBT_splitNdestroy_string) |
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| 100 | * @param separator is put between the concatenated strings (pass 0 to join w/o separator) |
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| 101 | * |
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| 102 | * @return heap-copy of joined strings |
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| 103 | */ |
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| 104 | |
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| 105 | if (!strings[0]) return ARB_strdup(""); |
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| 106 | |
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| 107 | GBS_strstruct out(1000); |
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| 108 | out.cat(strings[0]); |
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| 109 | arb_assert(implicated(separator, !strchr(strings[0], separator))); // otherwise you'll never be able to GBT_split_string |
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| 110 | for (int n = 1; strings[n]; ++n) { |
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| 111 | if (separator) out.put(separator); |
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| 112 | out.cat(strings[n]); |
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| 113 | arb_assert(implicated(separator, !strchr(strings[n], separator))); // otherwise you'll never be able to GBT_split_string |
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| 114 | } |
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| 115 | return out.release(); |
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| 116 | } |
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| 117 | |
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| 118 | int CharPtrArray::index_of(const char *search_for) const { |
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| 119 | // return index of 'search_for' or -1 if not found or given |
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| 120 | int index = -1; |
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| 121 | if (search_for && allocated) { |
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| 122 | for (int i = 0; str[i]; ++i) { |
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| 123 | if (strcmp(str[i], search_for) == 0) { |
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| 124 | index = i; |
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| 125 | break; |
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| 126 | } |
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| 127 | } |
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| 128 | } |
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| 129 | return index; |
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| 130 | } |
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| 131 | |
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| 132 | void CharPtrArray::move(int oidx, int nidx) { |
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| 133 | /*! moves an array-entry from 'oidx' to 'nidx' |
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| 134 | * (entries between get shifted by one) |
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| 135 | * -1 means "last entry" |
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| 136 | * if 'nidx' is out of bounds, it'll be moved to start of array |
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| 137 | */ |
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| 138 | int siz = size(); |
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| 139 | |
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| 140 | if (oidx == -1) oidx = siz-1; |
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| 141 | if (nidx == -1) nidx = siz-1; |
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| 142 | else if (nidx >= siz) nidx = 0; |
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| 143 | |
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| 144 | arb_assert(nidx<siz); |
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| 145 | |
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| 146 | if (oidx != nidx && oidx<siz) { |
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| 147 | if (oidx>nidx) for (int i = oidx-1; i>= nidx; --i) swap(i, i+1); // LOOP_VECTORIZED[!<810] |
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| 148 | else for (int i = oidx; i< nidx; ++i) swap(i, i+1); // LOOP_VECTORIZED[!<810] |
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| 149 | } |
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| 150 | } |
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| 151 | |
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| 152 | void CharPtrArray::remove(int i) { |
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| 153 | arb_assert(ok()); |
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| 154 | arb_assert(elem_index(i)); |
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| 155 | free_elem(i); |
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| 156 | |
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| 157 | // move elems incl. sentinel: |
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| 158 | while (size_t(i) < elems) { |
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| 159 | str[i] = str[i+1]; |
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| 160 | ++i; |
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| 161 | } |
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| 162 | elems--; |
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| 163 | arb_assert(ok()); |
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| 164 | } |
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| 165 | |
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| 166 | // -------------------------------------------------------------------------------- |
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| 167 | |
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| 168 | #ifdef UNIT_TESTS |
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| 169 | #include <test_unit.h> |
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| 170 | |
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| 171 | void TEST_StrArray() { |
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| 172 | StrArray array; |
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| 173 | |
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| 174 | TEST_EXPECT(array.empty()); |
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| 175 | TEST_EXPECT_EQUAL(array.index_of("whatever"), -1); |
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| 176 | TEST_EXPECT_EQUAL(array.size(), 0); |
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| 177 | TEST_EXPECT_NULL(array[0]); |
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| 178 | |
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| 179 | array.put(ARB_strdup("first")); |
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| 180 | |
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| 181 | TEST_REJECT(array.empty()); |
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| 182 | TEST_EXPECT_EQUAL(array.size(), 1); |
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| 183 | TEST_EXPECT_EQUAL(array[0], "first"); |
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| 184 | TEST_EXPECT_NULL(array[1]); |
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| 185 | |
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| 186 | array.put(ARB_strdup("second")); |
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| 187 | |
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| 188 | TEST_EXPECT_EQUAL(array.size(), 2); |
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| 189 | TEST_EXPECT_EQUAL(array[0], "first"); |
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| 190 | TEST_EXPECT_EQUAL(array[1], "second"); |
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| 191 | TEST_EXPECT_NULL(array[2]); |
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| 192 | |
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| 193 | array.remove(0); |
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| 194 | |
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| 195 | TEST_EXPECT_EQUAL(array.size(), 1); |
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| 196 | TEST_EXPECT_EQUAL(array[0], "second"); |
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| 197 | TEST_EXPECT_NULL(array[1]); |
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| 198 | |
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| 199 | array.remove(0); |
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| 200 | |
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| 201 | TEST_EXPECT(array.empty()); |
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| 202 | TEST_EXPECT_EQUAL(array.size(), 0); |
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| 203 | TEST_EXPECT_NULL(array[0]); |
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| 204 | } |
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| 205 | |
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| 206 | void TEST_StrArray_truncate() { |
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| 207 | ConstStrArray parts; |
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| 208 | GBT_split_string(parts, "test;word;bla", ';'); |
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| 209 | |
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| 210 | TEST_EXPECT_EQUAL(parts.size(), 3); |
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| 211 | parts.resize(1000); TEST_EXPECT_EQUAL(parts.size(), 3); |
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| 212 | parts.resize(2); TEST_EXPECT_EQUAL(parts.size(), 2); |
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| 213 | parts.resize(1); TEST_EXPECT_EQUAL(parts.size(), 1); |
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| 214 | parts.resize(0); TEST_EXPECT(parts.empty()); |
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| 215 | } |
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| 216 | |
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| 217 | #define TEST_SPLIT_JOIN(str,sep) \ |
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| 218 | do { \ |
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| 219 | ConstStrArray cnames; \ |
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| 220 | GBT_split_string(cnames, str, sep); \ |
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| 221 | TEST_EXPECT_STRARRAY_CONTAINS(cnames, sep, joined); \ |
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| 222 | } while(0) |
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| 223 | |
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| 224 | void TEST_GBT_split_join_names() { |
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| 225 | { // simple split |
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| 226 | ConstStrArray names; |
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| 227 | GBT_split_string(names, "a*b*c", '*'); |
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| 228 | size_t count = names.size(); |
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| 229 | |
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| 230 | TEST_EXPECT_EQUAL(count, 3U); |
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| 231 | TEST_EXPECT_EQUAL(names[0], "a"); |
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| 232 | TEST_EXPECT_EQUAL(names[1], "b"); |
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| 233 | TEST_EXPECT_EQUAL(names[2], "c"); |
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| 234 | } |
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| 235 | { // split string containing empty tokens |
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| 236 | ConstStrArray names; |
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| 237 | GBT_split_string(names, "**a**b*c*", '*'); |
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| 238 | size_t count = names.size(); |
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| 239 | |
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| 240 | TEST_EXPECT_EQUAL(count, 7U); |
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| 241 | TEST_EXPECT_EQUAL(names[0], ""); |
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| 242 | TEST_EXPECT_EQUAL(names[1], ""); |
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| 243 | TEST_EXPECT_EQUAL(names[2], "a"); |
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| 244 | TEST_EXPECT_EQUAL(names[3], ""); |
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| 245 | TEST_EXPECT_EQUAL(names[4], "b"); |
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| 246 | TEST_EXPECT_EQUAL(names[5], "c"); |
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| 247 | TEST_EXPECT_EQUAL(names[6], ""); |
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| 248 | TEST_EXPECT_NULL(names[7]); |
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| 249 | } |
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| 250 | { // split string containing empty tokens (with dropEmptyTokens==true) |
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| 251 | ConstStrArray names; |
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| 252 | GBT_split_string(names, "**a**b*c*", "*", SPLIT_DROPEMPTY); |
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| 253 | size_t count = names.size(); |
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| 254 | |
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| 255 | TEST_EXPECT_EQUAL(count, 3U); |
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| 256 | TEST_EXPECT_EQUAL(names[0], "a"); |
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| 257 | TEST_EXPECT_EQUAL(names[1], "b"); |
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| 258 | TEST_EXPECT_EQUAL(names[2], "c"); |
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| 259 | TEST_EXPECT_NULL(names[3]); |
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| 260 | } |
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| 261 | |
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| 262 | { // split empty string |
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| 263 | ConstStrArray names; |
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| 264 | GBT_split_string(names, "", '*'); |
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| 265 | size_t count = names.size(); |
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| 266 | |
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| 267 | TEST_EXPECT_EQUAL(count, 1U); |
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| 268 | TEST_EXPECT_EQUAL(names[0], ""); |
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| 269 | TEST_EXPECT_NULL(names[1]); |
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| 270 | } |
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| 271 | |
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| 272 | { // split empty string (with dropEmptyTokens==true) |
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| 273 | ConstStrArray names; |
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| 274 | GBT_split_string(names, "", "*", SPLIT_DROPEMPTY); |
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| 275 | size_t count = names.size(); |
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| 276 | |
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| 277 | TEST_EXPECT_EQUAL(count, 0U); |
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| 278 | TEST_EXPECT_NULL(names[0]); |
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| 279 | } |
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| 280 | |
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| 281 | TEST_SPLIT_JOIN("a.b.c", '.'); |
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| 282 | TEST_SPLIT_JOIN("a.b.c", '*'); |
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| 283 | |
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| 284 | TEST_SPLIT_JOIN("..a.b.c", '.'); |
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| 285 | TEST_SPLIT_JOIN("a.b.c..", '.'); |
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| 286 | TEST_SPLIT_JOIN("a..b..c", '.'); |
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| 287 | TEST_SPLIT_JOIN(".", '.'); |
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| 288 | TEST_SPLIT_JOIN("....", '.'); |
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| 289 | TEST_SPLIT_JOIN("", '.'); |
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| 290 | } |
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| 291 | |
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| 292 | void TEST_StrArray_index_of() { |
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| 293 | ConstStrArray names; |
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| 294 | |
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| 295 | TEST_EXPECT_EQUAL(names.index_of("a"), -1); |
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| 296 | |
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| 297 | GBT_split_string(names, "**a**b*c*", '*'); |
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| 298 | |
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| 299 | TEST_EXPECT_EQUAL(names.index_of("a"), 2); |
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| 300 | TEST_EXPECT_EQUAL(names.index_of("b"), 4); |
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| 301 | TEST_EXPECT_EQUAL(names.index_of("c"), 5); |
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| 302 | TEST_EXPECT_EQUAL(names.index_of(""), 0); |
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| 303 | TEST_EXPECT_EQUAL(names.index_of("no"), -1); |
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| 304 | } |
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| 305 | |
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| 306 | #define TEST_EXPECT_NAMES_JOIN_TO(names,sep,expected) TEST_EXPECT_STRARRAY_CONTAINS(names,sep,expected) |
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| 307 | |
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| 308 | void TEST_StrArray_safe_remove() { |
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| 309 | ConstStrArray names; |
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| 310 | GBT_split_string(names, "a*b*c*d*e", '*'); |
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| 311 | |
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| 312 | TEST_EXPECT_EQUAL(names.size(), 5U); |
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| 313 | TEST_EXPECT_NAMES_JOIN_TO(names, 0, "abcde"); // test GBT_join_strings w/o separator |
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| 314 | |
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| 315 | names.safe_remove(0); |
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| 316 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "b*c*d*e"); |
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| 317 | |
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| 318 | names.safe_remove(3); |
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| 319 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "b*c*d"); |
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| 320 | |
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| 321 | names.safe_remove(3); // index out of range |
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| 322 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "b*c*d"); |
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| 323 | |
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| 324 | names.safe_remove(-1); // illegal index |
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| 325 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "b*c*d"); |
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| 326 | |
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| 327 | names.safe_remove(1); |
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| 328 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "b*d"); |
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| 329 | } |
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| 330 | |
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| 331 | void TEST_StrArray_move() { |
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| 332 | ConstStrArray names; |
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| 333 | GBT_split_string(names, "a*b*c*dee", '*'); |
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| 334 | |
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| 335 | names.move(0, -1); // -1 means last |
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| 336 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "b*c*dee*a"); |
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| 337 | names.move(-1, 0); |
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| 338 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*b*c*dee"); |
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| 339 | names.move(2, 3); |
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| 340 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*b*dee*c"); |
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| 341 | names.move(2, 1); |
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| 342 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*dee*b*c"); |
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| 343 | |
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| 344 | // test wrap arounds |
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| 345 | names.move(0, -1); |
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| 346 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "dee*b*c*a"); |
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| 347 | names.move(-1, 99999); |
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| 348 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*dee*b*c"); |
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| 349 | } |
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| 350 | |
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| 351 | void TEST_StrArray_put_before() { // test after TEST_StrArray_move (cause put_before() depends on move()) |
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| 352 | ConstStrArray names; |
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| 353 | GBT_split_string(names, "a", '*'); |
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| 354 | |
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| 355 | names.put_before(-1, "b"); // append at end |
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| 356 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*b"); |
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| 357 | |
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| 358 | names.put_before(2, "c"); // append at end (using non-existing index) |
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| 359 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*b*c"); |
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| 360 | |
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| 361 | names.put_before(99, "d"); // append at end (using even bigger non-existing index) |
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| 362 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*b*c*d"); |
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| 363 | |
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| 364 | names.put_before(2, "b2"); // insert inside |
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| 365 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a*b*b2*c*d"); |
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| 366 | |
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| 367 | names.put_before(0, "a0"); // insert at beginning |
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| 368 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a0*a*b*b2*c*d"); |
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| 369 | |
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| 370 | names.put_before(5, "d0"); // insert before last |
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| 371 | TEST_EXPECT_NAMES_JOIN_TO(names, '*', "a0*a*b*b2*c*d0*d"); |
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| 372 | } |
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| 373 | TEST_PUBLISH(TEST_StrArray_put_before); |
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| 374 | |
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| 375 | #endif // UNIT_TESTS |
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| 376 | |
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