Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/source/fitz/xml-imp.h @ 16:bd5bb0742cc3

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A "check" target that checks for all venv and host prerequisites
author Franz Glasner <fzglas.hg@dom66.de>
date Wed, 17 Sep 2025 21:11:25 +0200
parents b50eed0cc0ef
children
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1 // Copyright (C) 2022-2025 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 XML_IMP_H
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25 #define XML_IMP_H
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27 #include "mupdf/fitz.h"
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29 /* These types are required for basic XML operation. */
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31 struct attribute
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32 {
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33 char *value;
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34 struct attribute *next;
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35 char name[FZ_FLEXIBLE_ARRAY];
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36 };
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37
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38 /**
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39 We use a slightly grotty representation for an XML tree.
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40
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41 The topmost element of the tree is an fz_xml with up == NULL.
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42 This signifies that we are a 'doc', rather than a 'node'.
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43
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44 We only ever get a 'doc' node at the root, and this contains
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45 a reference count for the entire tree, together with the
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46 fz_pool pointer used to allocate nodes.
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48 All other structures are 'nodes'. If down is MAGIC_TEXT then
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49 they are text nodes (with no children or attributes).
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50 Otherwise, they are standard XML nodes with attributes
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51 and children.
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52 */
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53
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54 struct fz_xml
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55 {
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56 fz_xml *up, *down;
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57 union
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58 {
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59 struct /* up != NULL */
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60 {
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61 fz_xml *prev, *next;
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62 #ifdef FZ_XML_SEQ
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63 int seq;
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64 #endif
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65 union
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66 {
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67 char text[1]; /* down == MAGIC_TEXT */
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68 struct /* down != MAGIC_TEXT */
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69 {
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70 struct attribute *atts;
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71 char name[FZ_FLEXIBLE_ARRAY];
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72 } d;
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73 } u;
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74 } node;
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75 struct /* up == NULL */
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76 {
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77 int refs;
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78 fz_pool *pool;
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79 } doc;
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80 } u;
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81 };
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82
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83 #define MAGIC_TEXT ((fz_xml *)1)
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84
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85 #define FZ_TEXT_ITEM(item) (item && item->down == MAGIC_TEXT)
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86 #define FZ_DOCUMENT_ITEM(item) (item && item->up == NULL)
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87
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88 size_t xml_parse_entity(int *c, const char *a);
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89
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90 #endif