Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/cutil/oldlist.h @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /******************************************************************************
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2 *
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3 * File: oldlist.h (Formerly list.h)
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4 * Description: List processing procedures declarations.
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5 * Author: Mark Seaman, SW Productivity
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6 *
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7 * (c) Copyright 1987, Hewlett-Packard Company.
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8 ** Licensed under the Apache License, Version 2.0 (the "License");
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9 ** you may not use this file except in compliance with the License.
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10 ** You may obtain a copy of the License at
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11 ** http://www.apache.org/licenses/LICENSE-2.0
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12 ** Unless required by applicable law or agreed to in writing, software
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13 ** distributed under the License is distributed on an "AS IS" BASIS,
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14 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 ** See the License for the specific language governing permissions and
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16 ** limitations under the License.
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17 *
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18 ******************************************************************************
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19 *
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20 * This file contains the interface for a set of general purpose list
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21 * manipulation routines. For the implementation of these routines see
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22 * the file "list.c".
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23 *
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24 ******************************************************************************
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25 *
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26 * INDEX
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27 * =======
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28 *
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29 * BASICS:
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30 * -------
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31 * first_node - Macro to return the first list node (not the cell).
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32 * list_rest - Macro the return the second list cell
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33 * pop - Destroy one list cell
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34 * push - Create one list cell and set the node and next fields
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35 *
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36 * ITERATION:
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37 * -----------------
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38 * iterate - Macro to create a for loop to visit each cell.
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39 *
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40 * LIST CELL COUNTS:
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41 * -----------------
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42 * count - Returns the number of list cells in the list.
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43 * last - Returns the last list cell.
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44 *
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45 * TRANSFORMS: (Note: These functions all modify the input list.)
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46 * ----------
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47 * delete_d - Removes the requested elements from the list.
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48 * push_last - Add a new element onto the end of a list.
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49 *
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50 * SETS:
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51 * -----
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52 * search - Return the pointer to the list cell whose node matches.
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53 *
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54 * CELL OPERATIONS:
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55 * -----------------
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56 * destroy - Return all list cells in a list.
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57 * destroy_nodes - Apply a function to each list cell and destroy the list.
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58 * set_rest - Assign the next field in a list cell.
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59 *
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60 ***********************************************************************/
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61
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62 #ifndef LIST_H
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63 #define LIST_H
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64
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65 #include <tesseract/export.h>
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66
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67 #include <cstddef> // for size_t
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69 namespace tesseract {
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71 /*----------------------------------------------------------------------
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72 T y p e s
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73 ----------------------------------------------------------------------*/
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74
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75 #define NIL_LIST static_cast<LIST>(nullptr)
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77 using int_compare = int (*)(void *, void *);
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78 using void_dest = void (*)(void *);
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80 /*----------------------------------------------------------------------
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81 M a c r o s
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82 ----------------------------------------------------------------------*/
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83
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84 /**********************************************************************
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85 * i t e r a t e
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86 *
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87 * Visit each node in the list. Replace the old list with the list
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88 * minus the head. Continue until the list is NIL_LIST.
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89 **********************************************************************/
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90
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91 #define iterate(l) for (; (l) != nullptr; (l) = (l)->list_rest())
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93 /**********************************************************************
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94 * s e t r e s t
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95 *
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96 * Change the "next" field of a list element to point to a desired place.
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97 *
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98 * #define set_rest(l,node) l->next = node;
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99 **********************************************************************/
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101 #define set_rest(l, cell) ((l)->next = (cell))
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102
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103 struct list_rec {
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104 list_rec *node;
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105 list_rec *next;
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106
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107 list_rec *first_node() {
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108 return node;
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109 }
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110
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111 list_rec *list_rest() {
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112 return next;
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113 }
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114
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115 //********************************************************************
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116 // Recursively count the elements in a list. Return the count.
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117 //********************************************************************
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118 size_t size() {
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119 auto var_list = this;
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120 size_t n = 0;
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121 iterate(var_list) n++;
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122 return n;
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123 }
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124 };
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125 using LIST = list_rec *;
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126
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127 /*----------------------------------------------------------------------
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128 Public Function Prototypes
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129 ----------------------------------------------------------------------*/
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130
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131 LIST delete_d(LIST list, void *key, int_compare is_equal);
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132
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133 TESS_API
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134 LIST destroy(LIST list);
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135
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136 void destroy_nodes(LIST list, void_dest destructor);
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137
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138 LIST last(LIST var_list);
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139
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140 LIST pop(LIST list);
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141
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142 TESS_API
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143 LIST push(LIST list, void *element);
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144
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145 TESS_API
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146 LIST push_last(LIST list, void *item);
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147
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148 LIST search(LIST list, void *key, int_compare is_equal);
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149
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150 } // namespace tesseract
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151
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152 #endif