/src/libwpd/src/lib/WP6Part.cpp
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ |
2 | | /* libwpd |
3 | | * Version: MPL 2.0 / LGPLv2.1+ |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | * Major Contributor(s): |
10 | | * Copyright (C) 2002 William Lachance (wrlach@gmail.com) |
11 | | * Copyright (C) 2002 Marc Maurer (uwog@uwog.net) |
12 | | * Copyright (C) 2006 Fridrich Strba (fridrich.strba@bluewin.ch) |
13 | | * |
14 | | * For minor contributions see the git repository. |
15 | | * |
16 | | * Alternatively, the contents of this file may be used under the terms |
17 | | * of the GNU Lesser General Public License Version 2.1 or later |
18 | | * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are |
19 | | * applicable instead of those above. |
20 | | * |
21 | | * For further information visit http://libwpd.sourceforge.net |
22 | | */ |
23 | | |
24 | | /* "This product is not manufactured, approved, or supported by |
25 | | * Corel Corporation or Corel Corporation Limited." |
26 | | */ |
27 | | |
28 | | #include "WP6Part.h" |
29 | | #include "WP6VariableLengthGroup.h" |
30 | | #include "WP6FixedLengthGroup.h" |
31 | | #include "WP6SingleByteFunction.h" |
32 | | |
33 | | // constructPart: constructs a parseable low-level representation of part of the document |
34 | | // returns the part if it successfully creates the part, returns 0 if it can't |
35 | | // throws an exception if there is an error |
36 | | // precondition: readVal us between 0x80 and 0xFF |
37 | | WP6Part *WP6Part::constructPart(librevenge::RVNGInputStream *input, WPXEncryption *encryption, const unsigned char readVal) |
38 | 0 | { |
39 | 0 | WPD_DEBUG_MSG(("WordPerfect: ConstructPart\n")); |
40 | |
|
41 | 0 | if (readVal >= (unsigned char)0x80 && readVal <= (unsigned char)0xCF) |
42 | 0 | { |
43 | 0 | WPD_DEBUG_MSG(("WordPerfect: constructSingleByteFunction(input, val=0x%.2x)\n", readVal)); |
44 | 0 | return WP6SingleByteFunction::constructSingleByteFunction(input, encryption, readVal); |
45 | 0 | } |
46 | 0 | else if (readVal >= (unsigned char)0xD0 && readVal <= (unsigned char)0xEF) |
47 | 0 | { |
48 | 0 | if (!WP6VariableLengthGroup::isGroupConsistent(input, encryption, readVal)) |
49 | 0 | { |
50 | 0 | WPD_DEBUG_MSG(("WordPerfect: Consistency Check (variable length) failed; ignoring this byte\n")); |
51 | 0 | return nullptr; |
52 | 0 | } |
53 | 0 | WPD_DEBUG_MSG(("WordPerfect: constructVariableLengthGroup(input, val=0x%.2x)\n", readVal)); |
54 | 0 | return WP6VariableLengthGroup::constructVariableLengthGroup(input, encryption, readVal); |
55 | 0 | } |
56 | | |
57 | 0 | else if (readVal >= (unsigned char)0xF0 && readVal < (unsigned char)0xFF) |
58 | 0 | { |
59 | 0 | if (!WP6FixedLengthGroup::isGroupConsistent(input, encryption, readVal)) |
60 | 0 | { |
61 | 0 | WPD_DEBUG_MSG(("WordPerfect: Consistency Check (fixed length) failed; ignoring this byte\n")); |
62 | 0 | return nullptr; |
63 | 0 | } |
64 | 0 | WPD_DEBUG_MSG(("WordPerfect: constructFixedLengthGroup(input, val=0x%.2x)\n", readVal)); |
65 | 0 | return WP6FixedLengthGroup::constructFixedLengthGroup(input, encryption, readVal); |
66 | 0 | } |
67 | | #ifdef DEBUG |
68 | | else |
69 | | WPD_DEBUG_MSG(("WordPerfect: invalid group (val=0x%2x)\n", readVal)); |
70 | | #endif |
71 | | |
72 | 0 | WPD_DEBUG_MSG(("WordPerfect: Returning 0 from constructPart\n")); |
73 | 0 | return nullptr; |
74 | 0 | } |
75 | | /* vim:set shiftwidth=4 softtabstop=4 noexpandtab: */ |