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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 // Original code is licensed as follows: | 6 // Original code is licensed as follows: |
7 /* | 7 /* |
8 * Copyright 2006-2007 Jeremias Maerki. | 8 * Copyright 2006-2007 Jeremias Maerki. |
9 * | 9 * |
10 * Licensed under the Apache License, Version 2.0 (the "License"); | 10 * Licensed under the Apache License, Version 2.0 (the "License"); |
(...skipping 17 matching lines...) Expand all Loading... |
28 #include "BC_SymbolInfo.h" | 28 #include "BC_SymbolInfo.h" |
29 #include "BC_EncoderContext.h" | 29 #include "BC_EncoderContext.h" |
30 #include "BC_HighLevelEncoder.h" | 30 #include "BC_HighLevelEncoder.h" |
31 #include "BC_EdifactEncoder.h" | 31 #include "BC_EdifactEncoder.h" |
32 CBC_EdifactEncoder::CBC_EdifactEncoder() | 32 CBC_EdifactEncoder::CBC_EdifactEncoder() |
33 { | 33 { |
34 } | 34 } |
35 CBC_EdifactEncoder::~CBC_EdifactEncoder() | 35 CBC_EdifactEncoder::~CBC_EdifactEncoder() |
36 { | 36 { |
37 } | 37 } |
38 FX_INT32 CBC_EdifactEncoder::getEncodingMode() | 38 int32_t CBC_EdifactEncoder::getEncodingMode() |
39 { | 39 { |
40 return EDIFACT_ENCODATION; | 40 return EDIFACT_ENCODATION; |
41 } | 41 } |
42 void CBC_EdifactEncoder::Encode(CBC_EncoderContext &context, FX_INT32 &e) | 42 void CBC_EdifactEncoder::Encode(CBC_EncoderContext &context, int32_t &e) |
43 { | 43 { |
44 CFX_WideString buffer; | 44 CFX_WideString buffer; |
45 while (context.hasMoreCharacters()) { | 45 while (context.hasMoreCharacters()) { |
46 FX_WCHAR c = context.getCurrentChar(); | 46 FX_WCHAR c = context.getCurrentChar(); |
47 encodeChar(c, buffer, e); | 47 encodeChar(c, buffer, e); |
48 if (e != BCExceptionNO) { | 48 if (e != BCExceptionNO) { |
49 return; | 49 return; |
50 } | 50 } |
51 context.m_pos++; | 51 context.m_pos++; |
52 FX_INT32 count = buffer.GetLength(); | 52 int32_t count = buffer.GetLength(); |
53 if (count >= 4) { | 53 if (count >= 4) { |
54 context.writeCodewords(encodeToCodewords(buffer, 0, e)); | 54 context.writeCodewords(encodeToCodewords(buffer, 0, e)); |
55 if (e != BCExceptionNO) { | 55 if (e != BCExceptionNO) { |
56 return; | 56 return; |
57 } | 57 } |
58 buffer.Delete(0, 4); | 58 buffer.Delete(0, 4); |
59 FX_INT32 newMode = CBC_HighLevelEncoder::lookAheadTest(context.m_msg
, context.m_pos, getEncodingMode()); | 59 int32_t newMode = CBC_HighLevelEncoder::lookAheadTest(context.m_msg,
context.m_pos, getEncodingMode()); |
60 if (newMode != getEncodingMode()) { | 60 if (newMode != getEncodingMode()) { |
61 context.signalEncoderChange(ASCII_ENCODATION); | 61 context.signalEncoderChange(ASCII_ENCODATION); |
62 break; | 62 break; |
63 } | 63 } |
64 } | 64 } |
65 } | 65 } |
66 buffer += (FX_WCHAR)31; | 66 buffer += (FX_WCHAR)31; |
67 handleEOD(context, buffer, e); | 67 handleEOD(context, buffer, e); |
68 } | 68 } |
69 void CBC_EdifactEncoder::handleEOD(CBC_EncoderContext &context, CFX_WideString b
uffer, FX_INT32 &e) | 69 void CBC_EdifactEncoder::handleEOD(CBC_EncoderContext &context, CFX_WideString b
uffer, int32_t &e) |
70 { | 70 { |
71 FX_INT32 count = buffer.GetLength(); | 71 int32_t count = buffer.GetLength(); |
72 if (count == 0) { | 72 if (count == 0) { |
73 return; | 73 return; |
74 } | 74 } |
75 if (count == 1) { | 75 if (count == 1) { |
76 context.updateSymbolInfo(e); | 76 context.updateSymbolInfo(e); |
77 if (e != BCExceptionNO) { | 77 if (e != BCExceptionNO) { |
78 return; | 78 return; |
79 } | 79 } |
80 FX_INT32 available = context.m_symbolInfo->m_dataCapacity - context.getC
odewordCount(); | 80 int32_t available = context.m_symbolInfo->m_dataCapacity - context.getCo
dewordCount(); |
81 FX_INT32 remaining = context.getRemainingCharacters(); | 81 int32_t remaining = context.getRemainingCharacters(); |
82 if (remaining == 0 && available <= 2) { | 82 if (remaining == 0 && available <= 2) { |
83 return; | 83 return; |
84 } | 84 } |
85 } | 85 } |
86 if (count > 4) { | 86 if (count > 4) { |
87 e = BCExceptionIllegalStateCountMustNotExceed4; | 87 e = BCExceptionIllegalStateCountMustNotExceed4; |
88 return; | 88 return; |
89 } | 89 } |
90 FX_INT32 restChars = count - 1; | 90 int32_t restChars = count - 1; |
91 CFX_WideString encoded = encodeToCodewords(buffer, 0, e); | 91 CFX_WideString encoded = encodeToCodewords(buffer, 0, e); |
92 if (e != BCExceptionNO) { | 92 if (e != BCExceptionNO) { |
93 return; | 93 return; |
94 } | 94 } |
95 FX_BOOL endOfSymbolReached = !context.hasMoreCharacters(); | 95 FX_BOOL endOfSymbolReached = !context.hasMoreCharacters(); |
96 FX_BOOL restInAscii = endOfSymbolReached && restChars <= 2; | 96 FX_BOOL restInAscii = endOfSymbolReached && restChars <= 2; |
97 if (restChars <= 2) { | 97 if (restChars <= 2) { |
98 context.updateSymbolInfo(context.getCodewordCount() + restChars, e); | 98 context.updateSymbolInfo(context.getCodewordCount() + restChars, e); |
99 if (e != BCExceptionNO) { | 99 if (e != BCExceptionNO) { |
100 return; | 100 return; |
101 } | 101 } |
102 FX_INT32 available = context.m_symbolInfo->m_dataCapacity - context.getC
odewordCount(); | 102 int32_t available = context.m_symbolInfo->m_dataCapacity - context.getCo
dewordCount(); |
103 if (available >= 3) { | 103 if (available >= 3) { |
104 restInAscii = FALSE; | 104 restInAscii = FALSE; |
105 context.updateSymbolInfo(context.getCodewordCount() + encoded.GetLen
gth(), e); | 105 context.updateSymbolInfo(context.getCodewordCount() + encoded.GetLen
gth(), e); |
106 if (e != BCExceptionNO) { | 106 if (e != BCExceptionNO) { |
107 return; | 107 return; |
108 } | 108 } |
109 } | 109 } |
110 } | 110 } |
111 if (restInAscii) { | 111 if (restInAscii) { |
112 context.resetSymbolInfo(); | 112 context.resetSymbolInfo(); |
113 context.m_pos -= restChars; | 113 context.m_pos -= restChars; |
114 } else { | 114 } else { |
115 context.writeCodewords(encoded); | 115 context.writeCodewords(encoded); |
116 } | 116 } |
117 context.signalEncoderChange(ASCII_ENCODATION); | 117 context.signalEncoderChange(ASCII_ENCODATION); |
118 } | 118 } |
119 void CBC_EdifactEncoder::encodeChar(FX_WCHAR c, CFX_WideString &sb, FX_INT32 &e) | 119 void CBC_EdifactEncoder::encodeChar(FX_WCHAR c, CFX_WideString &sb, int32_t &e) |
120 { | 120 { |
121 if (c >= ' ' && c <= '?') { | 121 if (c >= ' ' && c <= '?') { |
122 sb += c; | 122 sb += c; |
123 } else if (c >= '@' && c <= '^') { | 123 } else if (c >= '@' && c <= '^') { |
124 sb += (FX_WCHAR)(c - 64); | 124 sb += (FX_WCHAR)(c - 64); |
125 } else { | 125 } else { |
126 CBC_HighLevelEncoder::illegalCharacter(c, e); | 126 CBC_HighLevelEncoder::illegalCharacter(c, e); |
127 } | 127 } |
128 } | 128 } |
129 CFX_WideString CBC_EdifactEncoder::encodeToCodewords(CFX_WideString sb, FX_INT32
startPos, FX_INT32 &e) | 129 CFX_WideString CBC_EdifactEncoder::encodeToCodewords(CFX_WideString sb, int32_t
startPos, int32_t &e) |
130 { | 130 { |
131 FX_INT32 len = sb.GetLength() - startPos; | 131 int32_t len = sb.GetLength() - startPos; |
132 if (len == 0) { | 132 if (len == 0) { |
133 e = BCExceptionNoContents; | 133 e = BCExceptionNoContents; |
134 return (FX_LPWSTR)""; | 134 return (FX_LPWSTR)""; |
135 } | 135 } |
136 FX_WCHAR c1 = sb.GetAt(startPos); | 136 FX_WCHAR c1 = sb.GetAt(startPos); |
137 FX_WCHAR c2 = len >= 2 ? sb.GetAt(startPos + 1) : 0; | 137 FX_WCHAR c2 = len >= 2 ? sb.GetAt(startPos + 1) : 0; |
138 FX_WCHAR c3 = len >= 3 ? sb.GetAt(startPos + 2) : 0; | 138 FX_WCHAR c3 = len >= 3 ? sb.GetAt(startPos + 2) : 0; |
139 FX_WCHAR c4 = len >= 4 ? sb.GetAt(startPos + 3) : 0; | 139 FX_WCHAR c4 = len >= 4 ? sb.GetAt(startPos + 3) : 0; |
140 FX_INT32 v = (c1 << 18) + (c2 << 12) + (c3 << 6) + c4; | 140 int32_t v = (c1 << 18) + (c2 << 12) + (c3 << 6) + c4; |
141 FX_WCHAR cw1 = (FX_WCHAR) ((v >> 16) & 255); | 141 FX_WCHAR cw1 = (FX_WCHAR) ((v >> 16) & 255); |
142 FX_WCHAR cw2 = (FX_WCHAR) ((v >> 8) & 255); | 142 FX_WCHAR cw2 = (FX_WCHAR) ((v >> 8) & 255); |
143 FX_WCHAR cw3 = (FX_WCHAR) (v & 255); | 143 FX_WCHAR cw3 = (FX_WCHAR) (v & 255); |
144 CFX_WideString res; | 144 CFX_WideString res; |
145 res += cw1; | 145 res += cw1; |
146 if (len >= 2) { | 146 if (len >= 2) { |
147 res += cw2; | 147 res += cw2; |
148 } | 148 } |
149 if (len >= 3) { | 149 if (len >= 3) { |
150 res += cw3; | 150 res += cw3; |
151 } | 151 } |
152 return res; | 152 return res; |
153 } | 153 } |
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