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1
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package wildproto; |
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2
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$VERSION = '1.0.1'; |
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3
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4
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1
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1
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435
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use base pragmatic; |
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1
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2
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1
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632
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5
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6
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bootstrap xsub; |
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7
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8
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use xsub q{ |
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9
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static bool active = FALSE; |
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10
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11
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OP *(*old_ck_entersub)(pTHX_ OP *); |
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12
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13
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static OP *new_ck_entersub(pTHX_ OP *o) { |
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14
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OP *op; |
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15
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char *real_proto = NULL; |
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16
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char *copy_proto = NULL; |
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17
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18
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if (active) { |
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19
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UNOP *uno = (UNOP *)o; |
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20
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OP *prev; |
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21
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OP *argop; |
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22
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OP *cvop; |
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23
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char *proto = 0; |
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24
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CV *cv = 0; |
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25
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SVOP *tmpop; |
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26
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27
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if (o->op_private & OPpENTERSUB_AMPER) |
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28
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goto real_op; |
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29
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30
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prev = uno->op_first->op_sibling ? o : uno->op_first; |
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31
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prev = ((UNOP *)prev)->op_first; |
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32
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argop = prev->op_sibling; |
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33
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34
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for (cvop = argop; cvop->op_sibling; cvop = cvop->op_sibling); |
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35
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36
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if (cvop->op_type != OP_RV2CV) |
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37
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goto real_op; |
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38
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if (cvop->op_private & OPpENTERSUB_AMPER) |
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39
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goto real_op; |
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40
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tmpop = (SVOP*)((UNOP*)cvop)->op_first; |
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41
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if (tmpop->op_type != OP_GV) |
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42
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goto real_op; |
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43
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44
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cv = GvCVu(cGVOPx_gv(tmpop)); |
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45
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if (!cv || !SvPOK(cv)) |
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46
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goto real_op; |
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47
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proto = SvPV_nolen((SV*)cv); |
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48
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49
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while (argop != cvop) { |
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50
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#ifdef WACKYPROTO |
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51
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int type = 0; |
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52
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#endif |
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53
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54
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while (*proto == ' ' || *proto == ';') |
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55
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proto++; |
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56
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if (!*proto || *proto == '@' || *proto == '%') |
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57
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break; |
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58
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59
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if (*proto == '\\\\' && *(proto+1) == '?') |
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60
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#ifdef WACKYPROTO |
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61
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type = 1; |
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62
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else if (*(proto+0) == '(' && *(proto+1) == ')') |
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63
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type = 2; |
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64
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else if (*(proto+0) == '[' && *(proto+1) == ']') type = 3; |
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65
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else if (*(proto+0) == '{' && *(proto+1) == '}') type = 4; |
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66
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else type = 0; |
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67
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68
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if (type) |
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69
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#endif |
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70
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{ |
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71
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OP *next = argop->op_sibling; |
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72
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argop->op_sibling = 0; |
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73
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74
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#ifdef WACKYPROTO |
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75
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switch (type) { |
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76
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case 1: |
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77
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#endif |
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78
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argop = newUNOP(OP_REFGEN, 0, mod(argop, OP_REFGEN)); |
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79
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#ifdef WACKYPROTO |
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80
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break; |
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81
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case 2: |
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82
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argop = newUNOP(OP_REFGEN, 0, mod(argop, OP_REFGEN)); |
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83
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argop = newANONLIST(argop); |
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84
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break; |
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85
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case 3: |
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86
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argop = newANONLIST(argop); |
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87
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break; |
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88
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case 4: |
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89
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argop = newANONHASH(argop); |
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90
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break; |
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91
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} |
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92
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#endif |
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93
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94
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argop->op_sibling = next; |
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95
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prev->op_sibling = argop; |
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96
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if (!real_proto) { |
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97
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real_proto = proto; |
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98
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copy_proto = savepv(proto); |
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99
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} |
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100
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*proto++ = ' '; |
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101
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*proto = '$'; |
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102
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} |
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103
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104
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if (*proto == '\\\\') |
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105
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if (!*++proto) |
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106
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break; |
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107
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108
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proto++; |
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109
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prev = argop; |
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110
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argop = argop->op_sibling; |
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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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114
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real_op: |
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115
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op = old_ck_entersub(aTHX_ o); |
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116
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if (real_proto) |
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117
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strcpy(real_proto, copy_proto); |
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118
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return op; |
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119
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} |
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120
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}; |
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121
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122
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use xsub enable => q($), q{ |
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123
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if (active) |
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124
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return &PL_sv_yes; |
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125
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126
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old_ck_entersub = PL_check[OP_ENTERSUB]; |
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127
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PL_check[OP_ENTERSUB] = new_ck_entersub; |
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128
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129
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active = TRUE; |
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130
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return &PL_sv_yes; |
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131
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}; |
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132
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133
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use xsub disable => q($), q{ |
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134
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if (!active) |
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135
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return &PL_sv_yes; |
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136
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137
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active = FALSE; |
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138
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if (PL_check[OP_ENTERSUB] == new_ck_entersub) { |
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139
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PL_check[OP_ENTERSUB] = old_ck_entersub; |
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140
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} else { |
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141
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Perl_warn(aTHX_ "PL_check[OP_ENTERSUB] apparently hijacked at %s line %d\n", |
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142
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__FILE__, __LINE__); |
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143
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} |
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144
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145
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return &PL_sv_no; |
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146
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}; |
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147
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148
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1 |