Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/source/fitz/link.c @ 22:d77477b4e151

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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:
rev   line source
2
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1 // Copyright (C) 2004-2023 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 #include "mupdf/fitz.h"
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25 #include <math.h>
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27 fz_link *
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28 fz_new_link_of_size(fz_context *ctx, int size, fz_rect rect, const char *uri)
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29 {
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30 fz_link *link = Memento_label(fz_calloc(ctx, 1, size), "fz_link");
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31 link->refs = 1;
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32 link->rect = rect;
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33
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34 fz_try(ctx)
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35 link->uri = fz_strdup(ctx, uri);
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36 fz_catch(ctx)
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37 {
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38 fz_drop_link(ctx, link);
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39 fz_rethrow(ctx);
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40 }
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42 return link;
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43 }
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44
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45 fz_link *
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46 fz_keep_link(fz_context *ctx, fz_link *link)
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47 {
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48 return fz_keep_imp(ctx, link, &link->refs);
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49 }
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51 void
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52 fz_drop_link(fz_context *ctx, fz_link *link)
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53 {
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54 while (fz_drop_imp(ctx, link, &link->refs))
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55 {
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56 fz_link *next = link->next;
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58 if (link->drop)
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59 link->drop(ctx, link);
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61 fz_free(ctx, link->uri);
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62 fz_free(ctx, link);
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63 link = next;
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64 }
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65 }
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66
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67 int
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68 fz_is_external_link(fz_context *ctx, const char *uri)
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69 {
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70 const char *mark;
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71 /* Basically, this function returns true, if the URI starts with
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72 * a valid 'scheme' followed by ':'. */
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73
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74 if (!uri)
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75 return 0;
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76
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77 /* All schemes must start with a letter; exit if we don't. */
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78 if ((*uri < 'a' || *uri > 'z') && (*uri < 'A' || *uri > 'Z'))
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79 return 0;
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80 uri++;
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81
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82 mark = uri;
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83
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84 /* Subsequent characters can be letters, digits, +, -, or . */
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85 while ((*uri >= 'a' && *uri <= 'z') ||
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86 (*uri >= 'A' && *uri <= 'Z') ||
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87 (*uri >= '0' && *uri <= '9') ||
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88 (*uri == '+') ||
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89 (*uri == '-') ||
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90 (*uri == '.'))
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91 ++uri;
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92
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93 return uri[0] == ':' && (uri - mark) > 1;
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94 }
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95
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96 fz_link_dest fz_make_link_dest_none(void)
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97 {
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98 fz_link_dest dest = { { -1, -1 }, FZ_LINK_DEST_XYZ, NAN, NAN, NAN, NAN, NAN };
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99 return dest;
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100 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
101
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
102 fz_link_dest fz_make_link_dest_xyz(int chapter, int page, float x, float y, float z)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
103 {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
104 fz_link_dest dest = { { chapter, page }, FZ_LINK_DEST_XYZ, x, y, NAN, NAN, z };
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
105 return dest;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
106 }