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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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#ifdef __cplusplus |
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} |
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#endif |
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#include "darts.h" |
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#define MAX_NMATCH 1024 |
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0
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static IV da_make(AV *av){ |
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Darts::DoubleArray *dp = new Darts::DoubleArray; |
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std::vector keys; |
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int i, l; |
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for (i = 0, l = av_len(av)+1; i < l; i++){ |
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0
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0
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keys.push_back(SvPV_nolen(AvARRAY(av)[i])); |
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0
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0
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20
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} |
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dp->build(keys.size(), &keys[0], 0, 0); |
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return PTR2IV(dp); |
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} |
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static int da_free(IV dpi){ |
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0
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delete INT2PTR(Darts::DoubleArray *, dpi); |
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return 0; |
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} |
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static IV da_open(char *filename){ |
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Darts::DoubleArray *dp = new Darts::DoubleArray; |
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if (dp->open(filename) == -1){ |
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delete dp; |
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return 0; |
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} |
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return PTR2IV(dp); |
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} |
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39
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0
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static size_t da_search(IV dpi, char *str){ |
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40
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0
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Darts::DoubleArray *dp = INT2PTR(Darts::DoubleArray *, dpi); |
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Darts::DoubleArray::result_pair_type result_pair [MAX_NMATCH]; |
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size_t num = dp->commonPrefixSearch(str, result_pair, sizeof(result_pair)); |
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return num; |
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} |
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46
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47
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static SV *do_callback(SV *callback, SV *s){ |
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48
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dSP; |
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49
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int argc; |
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50
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SV *retval; |
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51
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0
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ENTER; |
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52
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SAVETMPS; |
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53
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0
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PUSHMARK(sp); |
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54
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0
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XPUSHs(s); |
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PUTBACK; |
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56
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argc = call_sv(callback, G_SCALAR); |
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57
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0
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SPAGAIN; |
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58
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0
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0
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if (argc != 1){ |
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59
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0
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croak("fallback sub must return scalar!"); |
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60
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} |
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61
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0
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retval = newSVsv(POPs); |
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62
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0
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PUTBACK; |
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63
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0
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FREETMPS; |
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64
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LEAVE; |
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65
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return retval; |
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66
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} |
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67
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68
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0
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static SV *do_hvlookup(SV *hashref, char *str, size_t len){ |
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69
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SV **val = hv_fetch((HV *)SvRV(hashref), str, len, 0 ); |
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return val && *val ? *val : &PL_sv_undef; |
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71
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} |
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72
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73
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74
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static SV *da_gsub(IV dpi, SV *src, SV *rep){ |
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SV *result = newSV(SvCUR(src)); |
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76
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Darts::DoubleArray *dp = INT2PTR(Darts::DoubleArray *, dpi); |
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77
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Darts::DoubleArray::result_pair_type result_pair[MAX_NMATCH]; |
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78
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79
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char *head = SvPV_nolen(src); |
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80
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char *tail = head + SvCUR(src); |
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81
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82
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while (head < tail) { |
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char *ohead = head; |
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84
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size_t size, rlen = 0; |
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85
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while(head < tail){ |
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86
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size = |
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87
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dp->commonPrefixSearch(head,result_pair, sizeof(result_pair)); |
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if (size) break; |
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89
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head++; |
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90
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} |
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91
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if (head != ohead){ |
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size_t d = (head - ohead); |
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93
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rlen += d; |
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if (rlen > SvCUR(result)) SvGROW(result, SvCUR(result)*2); |
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95
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sv_catpvn(result, ohead, d); |
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} |
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if (size) { |
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0
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size_t seekto = 0; |
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99
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0
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0
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for (size_t i = 0; i < size; ++i) { |
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100
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0
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if (seekto < result_pair[i].length) |
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101
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seekto = result_pair[i].length; |
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102
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} |
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103
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0
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if (seekto) { |
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104
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SV *ret = SvTYPE(SvRV(rep)) == SVt_PVCV |
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105
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? do_callback(rep, newSVpvn(head, seekto)) |
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106
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: do_hvlookup(rep, head, seekto); |
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0
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0
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107
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rlen += SvCUR(ret); |
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108
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if (rlen > SvCUR(result)) SvGROW(result, SvCUR(result)*2); |
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0
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0
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109
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sv_catpvn(result, SvPVX(ret), SvCUR(ret)); |
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110
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head += seekto; |
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111
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} |
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112
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} |
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113
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} |
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114
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0
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return result; |
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115
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} |
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116
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117
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MODULE = Text::Darts PACKAGE = Text::Darts |
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118
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119
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IV |
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120
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xs_make(av) |
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121
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AV *av |
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122
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CODE: |
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123
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0
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RETVAL = da_make(av); |
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124
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OUTPUT: |
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125
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RETVAL |
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126
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127
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int |
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128
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xs_free(dpi) |
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129
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IV dpi; |
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130
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CODE: |
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131
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0
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RETVAL = da_free(dpi); |
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132
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OUTPUT: |
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133
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RETVAL |
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134
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135
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IV |
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136
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xs_open(filename) |
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137
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char *filename |
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138
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CODE: |
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139
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0
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RETVAL = da_open(filename); |
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140
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OUTPUT: |
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141
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RETVAL |
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142
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143
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SV * |
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144
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xs_gsub(dpi, src, rep) |
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145
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IV dpi; |
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146
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SV *src; |
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147
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SV *rep; |
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148
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CODE: |
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149
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0
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RETVAL = da_gsub(dpi, src, rep); |
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150
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OUTPUT: |
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151
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RETVAL |
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152
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153
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size_t |
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154
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xs_search(dpi, str) |
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155
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IV dpi; |
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156
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char *str; |
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157
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CODE: |
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158
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0
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RETVAL = da_search(dpi, str); |
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159
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OUTPUT: |
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160
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RETVAL |
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161
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162
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char * |
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163
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DARTS_VERSION() |
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164
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CODE: |
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165
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0
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RETVAL = DARTS_VERSION; |
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166
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OUTPUT: |
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167
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RETVAL |