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################################################################################ |
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# |
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# Copyright (c) 2002-2020 Marcus Holland-Moritz. All rights reserved. |
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# This program is free software; you can redistribute it and/or modify |
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# it under the same terms as Perl itself. |
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# |
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################################################################################ |
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################################################################################ |
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# |
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# METHOD: tag / untag |
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# |
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# WRITTEN BY: Marcus Holland-Moritz ON: Dec 2004 |
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# CHANGED BY: ON: |
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# |
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################################################################################ |
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void |
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CBC::tag(type, ...) |
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const char *type |
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ALIAS: |
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untag = 1 |
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PREINIT: |
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19656
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CBC_METHOD_VAR; |
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TagTypeInfo tti; |
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CtTagList *taglist; |
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31
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CODE: |
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19656
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switch (ix) |
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{ |
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case 0: |
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19627
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CBC_METHOD_SET("tag"); |
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19627
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break; |
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case 1: |
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CBC_METHOD_SET("untag"); |
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break; |
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42
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default: |
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0
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fatal("Invalid alias (%d) for tag method", ix); |
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break; |
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} |
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46
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47
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CT_DEBUG_METHOD1("'%s'", type); |
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49
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19656
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100
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if (ix == 0 && items <= 3 && GIMME_V == G_VOID) |
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100
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100
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100
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50
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{ |
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51
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24
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100
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WARN_VOID_CONTEXT; |
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52
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24
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XSRETURN_EMPTY; |
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53
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} |
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54
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55
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19632
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100
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NEED_PARSE_DATA; |
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100
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56
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57
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19632
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tti.type = type; |
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58
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59
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19632
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100
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if (!get_member_info(aTHX_ THIS, type, &tti.mi, 0)) |
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60
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12
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Perl_croak(aTHX_ "Cannot find '%s'", type); |
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61
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62
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19620
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100
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if (tti.mi.level != 0) |
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24
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Perl_croak(aTHX_ "Cannot tag array members"); |
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64
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65
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58335
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taglist = tti.mi.pDecl ? &tti.mi.pDecl->tags |
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66
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19596
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100
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: find_taglist_ptr(tti.mi.type.ptr); |
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67
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68
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assert(taglist != NULL); |
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69
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70
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19596
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100
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if (ix == 0) /* tag */ |
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71
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{ |
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72
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19573
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100
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if (items == 2) |
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73
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118
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ST(0) = get_tags(aTHX_ &tti, *taglist); |
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74
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19455
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100
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else if (items == 3) |
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75
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236
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handle_tag(aTHX_ &tti, taglist, ST(2), NULL, &ST(0)); |
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76
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19219
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100
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else if (items % 2 == 0) |
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77
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{ |
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78
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int i; |
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79
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38252
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100
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for (i = 2; i < items; i += 2) |
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80
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19245
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handle_tag(aTHX_ &tti, taglist, ST(i), ST(i+1), NULL); |
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81
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} |
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82
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else |
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83
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6
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Perl_croak(aTHX_ "Invalid number of arguments to %s", method); |
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84
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} |
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85
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else /* untag */ |
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86
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{ |
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87
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23
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100
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if (items == 2) |
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88
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2
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delete_all_tags(taglist); |
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89
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else |
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90
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{ |
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91
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int i; |
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92
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36
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100
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for (i = 2; i < items; i++) |
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93
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21
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handle_tag(aTHX_ &tti, taglist, ST(i), &PL_sv_undef, NULL); |
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94
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} |
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95
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} |
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96
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97
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19390
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XSRETURN(1); |
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98
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