[dab82f29] | 1 | /* Copyright (c) 2002,2003,2004,2009 James M. Kretchmar |
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| 2 | * |
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| 3 | * This file is part of Owl. |
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| 4 | * |
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| 5 | * Owl is free software: you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU General Public License as published by |
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| 7 | * the Free Software Foundation, either version 3 of the License, or |
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| 8 | * (at your option) any later version. |
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| 9 | * |
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| 10 | * Owl is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU General Public License |
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| 16 | * along with Owl. If not, see <http://www.gnu.org/licenses/>. |
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| 17 | * |
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| 18 | * --------------------------------------------------------------- |
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| 19 | * |
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| 20 | * As of Owl version 2.1.12 there are patches contributed by |
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[fa00c5c] | 21 | * developers of the branched BarnOwl project, Copyright (c) |
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| 22 | * 2006-2009 The BarnOwl Developers. All rights reserved. |
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[dab82f29] | 23 | */ |
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| 24 | |
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[7d4fbcd] | 25 | #include "owl.h" |
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| 26 | |
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[1aee7d9] | 27 | static const char fileIdent[] = "$Id$"; |
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| 28 | |
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[7d4fbcd] | 29 | #define OWL_FILTERELEMENT_NULL 0 |
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| 30 | #define OWL_FILTERELEMENT_TRUE 1 |
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| 31 | #define OWL_FILTERELEMENT_FALSE 2 |
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| 32 | #define OWL_FILTERELEMENT_OPENBRACE 3 |
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| 33 | #define OWL_FILTERELEMENT_CLOSEBRACE 4 |
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| 34 | #define OWL_FILTERELEMENT_AND 5 |
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| 35 | #define OWL_FILTERELEMENT_OR 6 |
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| 36 | #define OWL_FILTERELEMENT_NOT 7 |
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| 37 | #define OWL_FILTERELEMENT_RE 8 |
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[40458b9] | 38 | #define OWL_FILTERELEMENT_FILTER 9 |
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[32eed98] | 39 | #define OWL_FILTERELEMENT_PERL 10 |
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[7d4fbcd] | 40 | |
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[e187445] | 41 | void owl_filterelement_create_null(owl_filterelement *fe) |
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| 42 | { |
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[7d4fbcd] | 43 | fe->type=OWL_FILTERELEMENT_NULL; |
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| 44 | fe->field=NULL; |
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[40458b9] | 45 | fe->filtername=NULL; |
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[7d4fbcd] | 46 | } |
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| 47 | |
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[e187445] | 48 | void owl_filterelement_create_openbrace(owl_filterelement *fe) |
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| 49 | { |
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[40458b9] | 50 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 51 | fe->type=OWL_FILTERELEMENT_OPENBRACE; |
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| 52 | } |
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| 53 | |
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[e187445] | 54 | void owl_filterelement_create_closebrace(owl_filterelement *fe) |
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| 55 | { |
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[40458b9] | 56 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 57 | fe->type=OWL_FILTERELEMENT_CLOSEBRACE; |
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| 58 | } |
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| 59 | |
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[e187445] | 60 | void owl_filterelement_create_and(owl_filterelement *fe) |
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| 61 | { |
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[40458b9] | 62 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 63 | fe->type=OWL_FILTERELEMENT_AND; |
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| 64 | } |
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| 65 | |
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[e187445] | 66 | void owl_filterelement_create_or(owl_filterelement *fe) |
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| 67 | { |
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[40458b9] | 68 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 69 | fe->type=OWL_FILTERELEMENT_OR; |
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| 70 | } |
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| 71 | |
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[e187445] | 72 | void owl_filterelement_create_not(owl_filterelement *fe) |
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| 73 | { |
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[40458b9] | 74 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 75 | fe->type=OWL_FILTERELEMENT_NOT; |
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| 76 | } |
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| 77 | |
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[e187445] | 78 | void owl_filterelement_create_true(owl_filterelement *fe) |
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| 79 | { |
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[40458b9] | 80 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 81 | fe->type=OWL_FILTERELEMENT_TRUE; |
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| 82 | } |
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| 83 | |
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[e187445] | 84 | void owl_filterelement_create_false(owl_filterelement *fe) |
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| 85 | { |
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[40458b9] | 86 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 87 | fe->type=OWL_FILTERELEMENT_FALSE; |
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| 88 | } |
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| 89 | |
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[e187445] | 90 | void owl_filterelement_create_re(owl_filterelement *fe, char *field, char *re) |
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| 91 | { |
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[40458b9] | 92 | owl_filterelement_create_null(fe); |
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[7d4fbcd] | 93 | fe->type=OWL_FILTERELEMENT_RE; |
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| 94 | fe->field=owl_strdup(field); |
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| 95 | owl_regex_create(&(fe->re), re); |
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| 96 | } |
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| 97 | |
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[40458b9] | 98 | void owl_filterelement_create_filter(owl_filterelement *fe, char *name) |
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| 99 | { |
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| 100 | owl_filterelement_create_null(fe); |
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| 101 | fe->type=OWL_FILTERELEMENT_FILTER; |
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| 102 | fe->filtername=owl_strdup(name); |
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| 103 | } |
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| 104 | |
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[32eed98] | 105 | void owl_filterelement_create_perl(owl_filterelement *fe, char *name) |
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| 106 | { |
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| 107 | owl_filterelement_create_null(fe); |
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| 108 | fe->type=OWL_FILTERELEMENT_PERL; |
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| 109 | fe->filtername=owl_strdup(name); |
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| 110 | } |
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| 111 | |
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[e187445] | 112 | void owl_filterelement_free(owl_filterelement *fe) |
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| 113 | { |
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[7d4fbcd] | 114 | if (fe->field) owl_free(fe->field); |
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[40458b9] | 115 | if (fe->filtername) owl_free(fe->filtername); |
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[7d4fbcd] | 116 | } |
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| 117 | |
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[e187445] | 118 | int owl_filterelement_is_null(owl_filterelement *fe) |
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| 119 | { |
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[7d4fbcd] | 120 | if (fe->type==OWL_FILTERELEMENT_NULL) return(1); |
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| 121 | return(0); |
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| 122 | } |
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| 123 | |
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[e187445] | 124 | int owl_filterelement_is_openbrace(owl_filterelement *fe) |
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| 125 | { |
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[7d4fbcd] | 126 | if (fe->type==OWL_FILTERELEMENT_OPENBRACE) return(1); |
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| 127 | return(0); |
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| 128 | } |
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| 129 | |
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[e187445] | 130 | int owl_filterelement_is_closebrace(owl_filterelement *fe) |
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| 131 | { |
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[7d4fbcd] | 132 | if (fe->type==OWL_FILTERELEMENT_CLOSEBRACE) return(1); |
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| 133 | return(0); |
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| 134 | } |
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| 135 | |
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[e187445] | 136 | int owl_filterelement_is_and(owl_filterelement *fe) |
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| 137 | { |
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[7d4fbcd] | 138 | if (fe->type==OWL_FILTERELEMENT_AND) return(1); |
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| 139 | return(0); |
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| 140 | } |
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| 141 | |
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[e187445] | 142 | int owl_filterelement_is_or(owl_filterelement *fe) |
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| 143 | { |
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[7d4fbcd] | 144 | if (fe->type==OWL_FILTERELEMENT_OR) return(1); |
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| 145 | return(0); |
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| 146 | } |
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| 147 | |
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[e187445] | 148 | int owl_filterelement_is_not(owl_filterelement *fe) |
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| 149 | { |
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[7d4fbcd] | 150 | if (fe->type==OWL_FILTERELEMENT_NOT) return(1); |
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| 151 | return(0); |
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| 152 | } |
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| 153 | |
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[e187445] | 154 | int owl_filterelement_is_true(owl_filterelement *fe) |
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| 155 | { |
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[7d4fbcd] | 156 | if (fe->type==OWL_FILTERELEMENT_TRUE) return(1); |
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| 157 | return(0); |
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| 158 | } |
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| 159 | |
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[e187445] | 160 | int owl_filterelement_is_false(owl_filterelement *fe) |
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| 161 | { |
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[7d4fbcd] | 162 | if (fe->type==OWL_FILTERELEMENT_FALSE) return(1); |
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| 163 | return(0); |
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| 164 | } |
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| 165 | |
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[e187445] | 166 | int owl_filterelement_is_re(owl_filterelement *fe) |
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| 167 | { |
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[7d4fbcd] | 168 | if (fe->type==OWL_FILTERELEMENT_RE) return(1); |
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| 169 | return(0); |
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| 170 | } |
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| 171 | |
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[32eed98] | 172 | int owl_filterelement_is_perl(owl_filterelement *fe) |
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| 173 | { |
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| 174 | if (fe->type==OWL_FILTERELEMENT_PERL) return(1); |
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| 175 | return(0); |
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| 176 | } |
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| 177 | |
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[e187445] | 178 | owl_regex *owl_filterelement_get_re(owl_filterelement *fe) |
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| 179 | { |
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[7d4fbcd] | 180 | return(&(fe->re)); |
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| 181 | } |
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| 182 | |
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[40458b9] | 183 | int owl_filterelement_is_filter(owl_filterelement *fe) |
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| 184 | { |
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| 185 | if (fe->type==OWL_FILTERELEMENT_FILTER) return(1); |
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| 186 | return(0); |
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| 187 | } |
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| 188 | |
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[e187445] | 189 | char *owl_filterelement_get_field(owl_filterelement *fe) |
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| 190 | { |
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[40458b9] | 191 | if (fe->field) return(fe->field); |
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| 192 | return("unknown-field"); |
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| 193 | } |
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| 194 | |
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| 195 | char *owl_filterelement_get_filtername(owl_filterelement *fe) |
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| 196 | { |
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| 197 | if (fe->filtername) return(fe->filtername); |
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| 198 | return("unknown-filter"); |
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[7d4fbcd] | 199 | } |
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| 200 | |
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[e187445] | 201 | int owl_filterelement_is_value(owl_filterelement *fe) |
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| 202 | { |
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[7d4fbcd] | 203 | if ( (fe->type==OWL_FILTERELEMENT_TRUE) || |
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| 204 | (fe->type==OWL_FILTERELEMENT_FALSE) || |
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[40458b9] | 205 | (fe->type==OWL_FILTERELEMENT_RE) || |
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[32eed98] | 206 | (fe->type==OWL_FILTERELEMENT_PERL) || |
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[40458b9] | 207 | (fe->type==OWL_FILTERELEMENT_FILTER)) { |
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[7d4fbcd] | 208 | return(1); |
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| 209 | } |
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| 210 | return(0); |
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| 211 | } |
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| 212 | |
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[40458b9] | 213 | /* caller must free the return */ |
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[e187445] | 214 | char *owl_filterelement_to_string(owl_filterelement *fe) |
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| 215 | { |
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[7d4fbcd] | 216 | if (owl_filterelement_is_openbrace(fe)) { |
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| 217 | return(owl_strdup("( ")); |
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| 218 | } else if (owl_filterelement_is_closebrace(fe)) { |
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| 219 | return(owl_strdup(") ")); |
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| 220 | } else if (owl_filterelement_is_and(fe)) { |
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| 221 | return(owl_strdup("and ")); |
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| 222 | } else if (owl_filterelement_is_or(fe)) { |
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| 223 | return(owl_strdup("or ")); |
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| 224 | } else if (owl_filterelement_is_not(fe)) { |
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| 225 | return(owl_strdup("not ")); |
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| 226 | } else if (owl_filterelement_is_true(fe)) { |
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| 227 | return(owl_strdup("true ")); |
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| 228 | } else if (owl_filterelement_is_false(fe)) { |
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| 229 | return(owl_strdup("false ")); |
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| 230 | } else if (owl_filterelement_is_re(fe)) { |
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[40458b9] | 231 | return(owl_sprintf("%s %s ", fe->field, owl_regex_get_string(&(fe->re)))); |
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| 232 | } else if (owl_filterelement_is_filter(fe)) { |
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| 233 | return(owl_sprintf("filter %s ", fe->filtername)); |
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[32eed98] | 234 | } else if (owl_filterelement_is_perl(fe)) { |
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| 235 | return(owl_sprintf("perl %s ", fe->filtername)); |
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[7d4fbcd] | 236 | } |
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[40458b9] | 237 | |
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| 238 | return(owl_strdup("?")); |
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[7d4fbcd] | 239 | } |
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