Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/include/mupdf/pdf/cmap.h @ 22:d77477b4e151

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Let _int_rc() also handle (i.e. ignore) a local version suffix
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 12:05:57 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // Copyright (C) 2004-2025 Artifex Software, Inc.
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2 //
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3 // This file is part of MuPDF.
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4 //
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5 // MuPDF is free software: you can redistribute it and/or modify it under the
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6 // terms of the GNU Affero General Public License as published by the Free
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7 // Software Foundation, either version 3 of the License, or (at your option)
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8 // any later version.
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9 //
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10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
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11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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13 // details.
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14 //
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15 // You should have received a copy of the GNU Affero General Public License
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16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
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17 //
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18 // Alternative licensing terms are available from the licensor.
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19 // For commercial licensing, see <https://www.artifex.com/> or contact
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20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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21 // CA 94129, USA, for further information.
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23 #ifndef MUPDF_PDF_CMAP_H
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24 #define MUPDF_PDF_CMAP_H
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26 #include "mupdf/fitz/store.h"
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27 #include "mupdf/pdf/document.h"
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29 #define PDF_MRANGE_CAP 32
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31 typedef struct
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32 {
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33 unsigned short low, high, out;
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34 } pdf_range;
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36 typedef struct
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37 {
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38 unsigned int low, high, out;
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39 } pdf_xrange;
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41 typedef struct
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42 {
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43 unsigned int low, out;
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44 } pdf_mrange;
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45
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46 typedef struct cmap_splay cmap_splay;
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48 typedef struct pdf_cmap
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49 {
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50 fz_storable storable;
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51 char cmap_name[32];
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53 char usecmap_name[32];
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54 struct pdf_cmap *usecmap;
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56 int wmode;
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58 int codespace_len;
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59 struct
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60 {
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61 int n;
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62 unsigned int low;
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63 unsigned int high;
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64 } codespace[40];
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65
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66 int rlen, rcap;
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67 pdf_range *ranges;
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69 int xlen, xcap;
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70 pdf_xrange *xranges;
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72 int mlen, mcap;
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73 pdf_mrange *mranges;
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75 int dlen, dcap;
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76 int *dict;
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78 int tlen, tcap, ttop;
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79 cmap_splay *tree;
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80 } pdf_cmap;
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81
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82 pdf_cmap *pdf_new_cmap(fz_context *ctx);
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83 pdf_cmap *pdf_keep_cmap(fz_context *ctx, pdf_cmap *cmap);
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84 void pdf_drop_cmap(fz_context *ctx, pdf_cmap *cmap);
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85 void pdf_drop_cmap_imp(fz_context *ctx, fz_storable *cmap);
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86 size_t pdf_cmap_size(fz_context *ctx, pdf_cmap *cmap);
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88 int pdf_cmap_wmode(fz_context *ctx, pdf_cmap *cmap);
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89 void pdf_set_cmap_wmode(fz_context *ctx, pdf_cmap *cmap, int wmode);
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90 void pdf_set_usecmap(fz_context *ctx, pdf_cmap *cmap, pdf_cmap *usecmap);
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91
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92 /*
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93 Add a codespacerange section.
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94 These ranges are used by pdf_decode_cmap to decode
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95 multi-byte encoded strings.
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96 */
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97 void pdf_add_codespace(fz_context *ctx, pdf_cmap *cmap, unsigned int low, unsigned int high, size_t n);
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99 /*
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100 Add a range of contiguous one-to-one mappings (i.e. 1..5 maps to 21..25)
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101 */
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102 void pdf_map_range_to_range(fz_context *ctx, pdf_cmap *cmap, unsigned int srclo, unsigned int srchi, int dstlo);
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103
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104 /*
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105 Add a single one-to-many mapping.
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106
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107 len <= 256.
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108 */
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109 void pdf_map_one_to_many(fz_context *ctx, pdf_cmap *cmap, unsigned int one, int *many, size_t len);
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110 void pdf_sort_cmap(fz_context *ctx, pdf_cmap *cmap);
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111
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112 /*
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113 Lookup the mapping of a codepoint.
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114 */
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115 int pdf_lookup_cmap(pdf_cmap *cmap, unsigned int cpt);
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116 int pdf_lookup_cmap_full(pdf_cmap *cmap, unsigned int cpt, int *out);
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117
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118 /*
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119 Use the codespace ranges to extract a codepoint from a
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120 multi-byte encoded string.
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121 */
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122 int pdf_decode_cmap(pdf_cmap *cmap, unsigned char *s, unsigned char *e, unsigned int *cpt);
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123
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124 /*
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125 Create an Identity-* CMap (for both 1 and 2-byte encodings)
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126 */
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127 pdf_cmap *pdf_new_identity_cmap(fz_context *ctx, int wmode, int bytes);
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128 pdf_cmap *pdf_load_cmap(fz_context *ctx, fz_stream *file);
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129
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130 /*
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131 Load predefined CMap from system.
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132 */
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133 pdf_cmap *pdf_load_system_cmap(fz_context *ctx, const char *name);
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134
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135 /*
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136 Load built-in CMap resource.
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137 */
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138 pdf_cmap *pdf_load_builtin_cmap(fz_context *ctx, const char *name);
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139
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140 /*
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141 Load CMap stream in PDF file
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142 */
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143 pdf_cmap *pdf_load_embedded_cmap(fz_context *ctx, pdf_document *doc, pdf_obj *ref);
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144
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145 #endif