| 1 | // =============================================================== // |
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| 2 | // // |
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| 3 | // File : AP_filter.cxx // |
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| 4 | // Purpose : // |
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| 5 | // // |
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| 6 | // Institute of Microbiology (Technical University Munich) // |
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| 7 | // http://www.arb-home.de/ // |
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| 8 | // // |
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| 9 | // =============================================================== // |
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| 10 | |
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| 11 | #include "AP_filter.hxx" |
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| 12 | #include <arbdb.h> |
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| 13 | |
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| 14 | // ------------------ |
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| 15 | // AP_filter |
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| 16 | |
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| 17 | void AP_filter::init(size_t size) { |
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| 18 | filter_mask = new bool[size]; |
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| 19 | filter_len = size; |
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| 20 | real_len = 0; |
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| 21 | update = AP_timer(); |
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| 22 | simplify_type = AWT_FILTER_SIMPLIFY_NOT_INITIALIZED; |
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| 23 | simplify[0] = 0; // silence cppcheck-warning |
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| 24 | bootstrap = NULp; |
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| 25 | filterpos_2_seqpos = NULp; |
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| 26 | |
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| 27 | #if defined(ASSERTION_USED) |
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| 28 | checked_for_validity = false; |
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| 29 | #endif |
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| 30 | } |
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| 31 | |
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| 32 | void AP_filter::make_permeable(size_t size) { |
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| 33 | init(size); |
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| 34 | real_len = filter_len; |
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| 35 | for (size_t i = 0; i < size; i++) filter_mask[i] = true; |
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| 36 | } |
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| 37 | |
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| 38 | void AP_filter::init_from_string(const char *ifilter, const char *zerobases, size_t size) { |
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| 39 | init(size); |
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| 40 | |
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| 41 | bool char2mask[256]; |
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| 42 | size_t i; |
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| 43 | |
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| 44 | for (i = 0; i<256; ++i) char2mask[i] = true; |
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| 45 | if (zerobases) { |
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| 46 | for (i = 0; zerobases[i]; ++i) char2mask[safeCharIndex(zerobases[i])] = false; |
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| 47 | } |
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| 48 | else { |
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| 49 | char2mask['0'] = false; |
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| 50 | } |
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| 51 | |
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| 52 | real_len = 0; |
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| 53 | for (i = 0; i < size && ifilter[i]; ++i) { |
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| 54 | real_len += int(filter_mask[i] = char2mask[safeCharIndex(ifilter[i])]); |
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| 55 | } |
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| 56 | for (; i < size; i++) { |
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| 57 | filter_mask[i] = true; |
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| 58 | real_len++; |
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| 59 | } |
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| 60 | } |
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| 61 | |
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| 62 | |
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| 63 | AP_filter::AP_filter(size_t size) { |
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| 64 | make_permeable(size); |
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| 65 | } |
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| 66 | |
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| 67 | AP_filter::AP_filter(const AP_filter& other) |
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| 68 | : filter_mask(new bool[other.filter_len]), |
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| 69 | filter_len(other.filter_len), |
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| 70 | real_len(other.real_len), |
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| 71 | update(other.update), |
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| 72 | simplify_type(other.simplify_type), |
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| 73 | bootstrap(NULp), |
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| 74 | filterpos_2_seqpos(NULp) |
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| 75 | { |
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| 76 | memcpy(filter_mask, other.filter_mask, filter_len*sizeof(*filter_mask)); |
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| 77 | memcpy(simplify, other.simplify, sizeof(simplify)*sizeof(*simplify)); |
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| 78 | if (other.bootstrap) { |
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| 79 | bootstrap = new size_t[real_len]; |
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| 80 | memcpy(bootstrap, other.bootstrap, real_len*sizeof(*bootstrap)); |
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| 81 | } |
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| 82 | if (other.filterpos_2_seqpos) { |
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| 83 | filterpos_2_seqpos = new size_t[real_len]; |
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| 84 | memcpy(filterpos_2_seqpos, other.filterpos_2_seqpos, real_len*sizeof(*filterpos_2_seqpos)); |
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| 85 | } |
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| 86 | #if defined(ASSERTION_USED) |
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| 87 | checked_for_validity = other.checked_for_validity; |
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| 88 | #endif |
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| 89 | } |
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| 90 | |
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| 91 | |
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| 92 | |
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| 93 | AP_filter::AP_filter(const char *ifilter, const char *zerobases, size_t size) { |
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| 94 | if (!ifilter || !*ifilter) { |
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| 95 | make_permeable(size); |
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| 96 | } |
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| 97 | else { |
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| 98 | init_from_string(ifilter, zerobases, size); |
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| 99 | } |
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| 100 | } |
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| 101 | |
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| 102 | AP_filter::AP_filter(AF_Not, const AP_filter& other) { |
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| 103 | size_t size = other.get_length(); |
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| 104 | const bool *omask = other.filter_mask; |
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| 105 | |
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| 106 | init(size); |
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| 107 | for (size_t i = 0; i < size; i++) { |
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| 108 | real_len += (filter_mask[i] = !omask[i]); |
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| 109 | } |
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| 110 | } |
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| 111 | |
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| 112 | AP_filter::AP_filter(const AP_filter& f1, AF_Combine comb, const AP_filter& f2) { |
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| 113 | size_t size = f1.get_length(); |
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| 114 | af_assert(size == f2.get_length()); |
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| 115 | |
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| 116 | init(size); |
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| 117 | |
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| 118 | const bool *m1 = f1.filter_mask; |
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| 119 | const bool *m2 = f2.filter_mask; |
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| 120 | |
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| 121 | switch (comb) { |
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| 122 | case AND: |
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| 123 | for (size_t i = 0; i<size; ++i) { |
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| 124 | real_len += (filter_mask[i] = (m1[i] && m2[i])); |
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| 125 | } |
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| 126 | break; |
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| 127 | case OR: |
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| 128 | for (size_t i = 0; i<size; ++i) { |
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| 129 | real_len += (filter_mask[i] = (m1[i] || m2[i])); |
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| 130 | } |
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| 131 | break; |
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| 132 | case XOR: |
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| 133 | for (size_t i = 0; i<size; ++i) { |
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| 134 | real_len += (filter_mask[i] = (m1[i] ^ m2[i])); |
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| 135 | } |
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| 136 | break; |
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| 137 | } |
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| 138 | } |
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| 139 | |
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| 140 | AP_filter::~AP_filter() { |
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| 141 | delete [] bootstrap; |
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| 142 | delete [] filter_mask; |
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| 143 | delete [] filterpos_2_seqpos; |
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| 144 | } |
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| 145 | |
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| 146 | char *AP_filter::to_string() const { |
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| 147 | af_assert(checked_for_validity); |
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| 148 | |
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| 149 | char *data = ARB_alloc<char>(filter_len+1); |
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| 150 | |
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| 151 | for (size_t i=0; i<filter_len; ++i) { |
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| 152 | data[i] = "01"[filter_mask[i]]; |
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| 153 | } |
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| 154 | data[filter_len] = 0; |
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| 155 | |
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| 156 | return data; |
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| 157 | } |
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| 158 | |
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| 159 | |
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| 160 | void AP_filter::enable_simplify(AWT_FILTER_SIMPLIFY type) { |
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| 161 | if (type != simplify_type) { |
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| 162 | int i; |
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| 163 | for (i=0; i<32; i++) { |
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| 164 | simplify[i] = '.'; |
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| 165 | } |
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| 166 | for (; i<256; i++) { // LOOP_VECTORIZED // tested down to gcc 5.5.0 (may fail on older gcc versions) |
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| 167 | simplify[i] = i; |
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| 168 | } |
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| 169 | switch (type) { |
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| 170 | case AWT_FILTER_SIMPLIFY_DNA: |
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| 171 | simplify[(unsigned char)'g'] = 'a'; |
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| 172 | simplify[(unsigned char)'G'] = 'A'; |
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| 173 | simplify[(unsigned char)'u'] = 'c'; |
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| 174 | simplify[(unsigned char)'t'] = 'c'; |
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| 175 | simplify[(unsigned char)'U'] = 'C'; |
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| 176 | simplify[(unsigned char)'T'] = 'C'; |
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| 177 | break; |
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| 178 | case AWT_FILTER_SIMPLIFY_PROTEIN: |
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| 179 | af_assert(0); // not implemented or impossible!? |
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| 180 | break; |
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| 181 | case AWT_FILTER_SIMPLIFY_NONE: |
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| 182 | break; |
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| 183 | default: |
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| 184 | af_assert(0); |
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| 185 | break; |
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| 186 | } |
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| 187 | |
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| 188 | simplify_type = type; |
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| 189 | } |
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| 190 | } |
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| 191 | |
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| 192 | void AP_filter::calc_filterpos_2_seqpos() { |
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| 193 | af_assert(checked_for_validity); |
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| 194 | af_assert(real_len>0); |
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| 195 | |
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| 196 | delete [] filterpos_2_seqpos; |
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| 197 | filterpos_2_seqpos = new size_t[real_len]; |
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| 198 | size_t i, j; |
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| 199 | for (i=j=0; i<filter_len; ++i) { |
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| 200 | if (filter_mask[i]) { |
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| 201 | filterpos_2_seqpos[j++] = i; |
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| 202 | } |
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| 203 | } |
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| 204 | } |
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| 205 | |
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| 206 | void AP_filter::enable_bootstrap() { |
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| 207 | af_assert(checked_for_validity); |
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| 208 | af_assert(real_len>0); |
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| 209 | |
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| 210 | delete [] bootstrap; |
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| 211 | bootstrap = new size_t[real_len]; |
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| 212 | |
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| 213 | af_assert(filter_len < RAND_MAX); |
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| 214 | |
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| 215 | for (size_t i = 0; i<real_len; ++i) { |
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| 216 | int r = GB_random(real_len); |
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| 217 | af_assert(r >= 0); // otherwise overflow in random number generator |
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| 218 | bootstrap[i] = r; |
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| 219 | } |
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| 220 | } |
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| 221 | |
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| 222 | char *AP_filter::blowup_string(const char *filtered_string, char fillChar) const { |
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| 223 | /*! blow up 'filtered_string' to unfiltered length |
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| 224 | * by inserting 'fillChar' at filtered positions |
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| 225 | */ |
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| 226 | af_assert(checked_for_validity); |
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| 227 | |
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| 228 | char *blownup = ARB_alloc<char>(filter_len+1); |
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| 229 | size_t f = 0; |
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| 230 | |
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| 231 | for (size_t i = 0; i<filter_len; ++i) { |
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| 232 | blownup[i] = use_position(i) ? filtered_string[f++] : fillChar; |
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| 233 | } |
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| 234 | blownup[filter_len] = 0; |
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| 235 | |
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| 236 | return blownup; |
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| 237 | } |
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| 238 | |
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| 239 | char *AP_filter::filter_string(const char *fulllen_string) const { |
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| 240 | /*! filter given 'fulllen_string' |
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| 241 | */ |
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| 242 | |
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| 243 | af_assert(checked_for_validity); |
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| 244 | |
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| 245 | char *filtered = ARB_alloc<char>(real_len+1); |
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| 246 | size_t f = 0; |
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| 247 | |
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| 248 | get_filterpos_2_seqpos(); // create if missing |
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| 249 | for (size_t i = 0; i<real_len; ++i) { |
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| 250 | size_t p = filterpos_2_seqpos[i]; |
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| 251 | filtered[f++] = fulllen_string[p]; |
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| 252 | } |
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| 253 | filtered[f] = 0; |
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| 254 | |
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| 255 | return filtered; |
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| 256 | } |
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| 257 | |
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| 258 | // ------------------- |
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| 259 | // AP_weights |
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| 260 | |
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| 261 | AP_weights::AP_weights(const AP_filter *fil) |
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| 262 | : len(fil->get_filtered_length()), |
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| 263 | weights(NULp) |
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| 264 | { |
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| 265 | } |
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| 266 | |
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| 267 | AP_weights::AP_weights(const GB_UINT4 *w, size_t wlen, const AP_filter *fil) |
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| 268 | : len(fil->get_filtered_length()), |
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| 269 | weights(NULp) |
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| 270 | { |
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| 271 | ARB_alloc_aligned(weights, len); |
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| 272 | |
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| 273 | af_assert(wlen == fil->get_length()); |
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| 274 | |
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| 275 | size_t i, j; |
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| 276 | for (j=i=0; j<wlen; ++j) { |
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| 277 | if (fil->use_position(j)) { |
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| 278 | weights[i++] = w[j]; |
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| 279 | } |
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| 280 | } |
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| 281 | af_assert(j <= fil->get_length()); |
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| 282 | af_assert(i == fil->get_filtered_length()); |
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| 283 | } |
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| 284 | |
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| 285 | AP_weights::AP_weights(const AP_weights& other) |
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| 286 | : len(other.len), |
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| 287 | weights(NULp) |
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| 288 | { |
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| 289 | if (other.weights) { |
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| 290 | ARB_alloc_aligned(weights, len); |
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| 291 | memcpy(weights, other.weights, len*sizeof(*weights)); |
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| 292 | } |
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| 293 | } |
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| 294 | |
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| 295 | AP_weights::~AP_weights() { |
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| 296 | free(weights); |
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| 297 | } |
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| 298 | |
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| 299 | long AP_timer() { |
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| 300 | static long time = 0; |
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| 301 | return ++time; |
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| 302 | } |
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| 303 | |
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| 304 | |
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| 305 | // -------------------------------------------------------------------------------- |
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| 306 | |
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| 307 | #ifdef UNIT_TESTS |
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| 308 | #ifndef TEST_UNIT_H |
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| 309 | #include <test_unit.h> |
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| 310 | #endif |
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| 311 | |
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| 312 | #define TEST_EXPECT_EQUAL_FILTERS(f1,f2) do{ \ |
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| 313 | TEST_EXPECT_NO_ERROR((f1).is_invalid()); \ |
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| 314 | TEST_EXPECT_NO_ERROR((f2).is_invalid()); \ |
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| 315 | char *m1 = (f1).to_string(); \ |
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| 316 | char *m2 = (f2).to_string(); \ |
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| 317 | TEST_EXPECT_EQUAL(m1, m2); \ |
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| 318 | free(m2); \ |
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| 319 | free(m1); \ |
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| 320 | }while(0) |
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| 321 | |
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| 322 | void TEST_filter() { |
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| 323 | const int LEN = 20; |
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| 324 | const int MASK_BITCOUNT = 9; |
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| 325 | const char *mask = "01100001110000110011"; |
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| 326 | const char *mask_inv = "10011110001111001100"; |
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| 327 | const char *mask_some = "00100101100101011001"; |
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| 328 | const char *seq = "MSKTAYTKVLFDRGSALDGK"; |
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| 329 | const char *seq_masked = "SK" "KVL" "SA""GK"; |
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| 330 | const char *blow_mask = "_SK____KVL____SA__GK"; |
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| 331 | const char *seq_masked_inv = "M""TAYT" "FDRG""LD"; |
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| 332 | const char *blow_mask_inv = "M__TAYT___FDRG__LD__"; |
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| 333 | |
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| 334 | AP_filter f1(LEN); |
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| 335 | AP_filter f2(mask, "0", LEN); |
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| 336 | AP_filter n2(mask, "1", LEN); |
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| 337 | AP_filter f3(mask_inv, "0", LEN); |
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| 338 | AP_filter n3(mask_inv, "1", LEN); |
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| 339 | |
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| 340 | TEST_EXPECT_EQUAL(f1.get_length(), LEN); |
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| 341 | TEST_EXPECT_EQUAL(f2.get_length(), LEN); |
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| 342 | TEST_EXPECT_EQUAL(f3.get_length(), LEN); |
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| 343 | TEST_EXPECT_EQUAL(n2.get_length(), LEN); |
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| 344 | TEST_EXPECT_EQUAL(n3.get_length(), LEN); |
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| 345 | |
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| 346 | TEST_EXPECT_EQUAL(f1.get_filtered_length(), LEN); |
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| 347 | TEST_EXPECT_EQUAL(f2.get_filtered_length(), MASK_BITCOUNT); |
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| 348 | TEST_EXPECT_EQUAL(f3.get_filtered_length(), LEN-MASK_BITCOUNT); |
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| 349 | TEST_EXPECT_EQUAL(n2.get_filtered_length(), LEN-MASK_BITCOUNT); |
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| 350 | TEST_EXPECT_EQUAL(n3.get_filtered_length(), MASK_BITCOUNT); |
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| 351 | |
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| 352 | TEST_EXPECT_NO_ERROR(f1.is_invalid()); |
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| 353 | TEST_EXPECT_NO_ERROR(f2.is_invalid()); |
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| 354 | TEST_EXPECT_NO_ERROR(f3.is_invalid()); |
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| 355 | TEST_EXPECT_NO_ERROR(n2.is_invalid()); |
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| 356 | TEST_EXPECT_NO_ERROR(n3.is_invalid()); |
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| 357 | |
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| 358 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f1.to_string(), "11111111111111111111"); |
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| 359 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f2.to_string(), mask); |
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| 360 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f3.to_string(), mask_inv); |
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| 361 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n2.to_string(), mask_inv); |
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| 362 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n3.to_string(), mask); |
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| 363 | |
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| 364 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f1.filter_string(seq), seq); |
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| 365 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f2.filter_string(seq), seq_masked); |
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| 366 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f3.filter_string(seq), seq_masked_inv); |
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| 367 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n2.filter_string(seq), seq_masked_inv); |
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| 368 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n3.filter_string(seq), seq_masked); |
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| 369 | |
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| 370 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f1.blowup_string(seq, '_'), seq); |
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| 371 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f2.blowup_string(seq_masked, '_'), blow_mask); |
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| 372 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f3.blowup_string(seq_masked_inv, '_'), blow_mask_inv); |
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| 373 | |
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| 374 | // test inverting filters: |
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| 375 | AP_filter i2(NOT, f2); |
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| 376 | AP_filter i3(NOT, f3); |
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| 377 | |
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| 378 | TEST_EXPECT_EQUAL_FILTERS(i2, n2); |
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| 379 | TEST_EXPECT_EQUAL_FILTERS(i3, n3); |
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| 380 | |
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| 381 | // test filter combination (AND + OR): |
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| 382 | AP_filter s2(mask_some, "0", LEN); |
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| 383 | AP_filter s3(NOT, s2); |
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| 384 | |
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| 385 | AP_filter as23(s2, AND, s3); |
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| 386 | AP_filter os23(s2, OR, s3); |
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| 387 | |
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| 388 | TEST_EXPECT_ERROR_CONTAINS(as23.is_invalid(), "Sequence completely filtered out (no columns left)"); |
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| 389 | |
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| 390 | TEST_EXPECT_EQUAL(as23.get_filtered_length(), 0); |
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| 391 | TEST_EXPECT_EQUAL(os23.get_filtered_length(), LEN); |
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| 392 | |
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| 393 | AP_filter fs22(f2, AND, s2); |
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| 394 | AP_filter fs23(f2, AND, s3); |
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| 395 | AP_filter o2223(fs22, OR, fs23); |
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| 396 | |
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| 397 | TEST_EXPECT_EQUAL_FILTERS(o2223, f2); |
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| 398 | |
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| 399 | AP_filter x(fs22, XOR, fs23); |
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| 400 | AP_filter xa1(AP_filter(fs22, AND, AP_filter(NOT, fs23)), OR, AP_filter(AP_filter(NOT, fs22), AND, fs23)); // = (a&&!b) || (!a&&b) |
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| 401 | AP_filter xa2(AP_filter(fs22, OR, fs23), AND, AP_filter(NOT, AP_filter(fs22, AND, fs23))); // = (a||b) && !(a&&b) |
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| 402 | |
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| 403 | TEST_EXPECT_EQUAL_FILTERS(x, xa1); |
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| 404 | TEST_EXPECT_EQUAL_FILTERS(x, xa2); |
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| 405 | |
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| 406 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(x.to_string(), mask); |
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| 407 | } |
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| 408 | |
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| 409 | #endif // UNIT_TESTS |
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| 410 | |
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| 411 | // -------------------------------------------------------------------------------- |
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