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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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