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path: root/fxbarcode/datamatrix/BC_EdifactEncoder.cpp
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Diffstat (limited to 'fxbarcode/datamatrix/BC_EdifactEncoder.cpp')
-rw-r--r--fxbarcode/datamatrix/BC_EdifactEncoder.cpp197
1 files changed, 100 insertions, 97 deletions
diff --git a/fxbarcode/datamatrix/BC_EdifactEncoder.cpp b/fxbarcode/datamatrix/BC_EdifactEncoder.cpp
index 954dcbcba6..9231b1e293 100644
--- a/fxbarcode/datamatrix/BC_EdifactEncoder.cpp
+++ b/fxbarcode/datamatrix/BC_EdifactEncoder.cpp
@@ -22,134 +22,137 @@
#include "fxbarcode/datamatrix/BC_EdifactEncoder.h"
-#include "fxbarcode/BC_Dimension.h"
+#include <algorithm>
+
#include "fxbarcode/common/BC_CommonBitMatrix.h"
#include "fxbarcode/datamatrix/BC_Encoder.h"
#include "fxbarcode/datamatrix/BC_EncoderContext.h"
#include "fxbarcode/datamatrix/BC_HighLevelEncoder.h"
#include "fxbarcode/datamatrix/BC_SymbolInfo.h"
#include "fxbarcode/datamatrix/BC_SymbolShapeHint.h"
+#include "fxbarcode/utils.h"
-CBC_EdifactEncoder::CBC_EdifactEncoder() {}
-CBC_EdifactEncoder::~CBC_EdifactEncoder() {}
-int32_t CBC_EdifactEncoder::getEncodingMode() {
- return EDIFACT_ENCODATION;
-}
-void CBC_EdifactEncoder::Encode(CBC_EncoderContext& context, int32_t& e) {
- CFX_WideString buffer;
- while (context.hasMoreCharacters()) {
- wchar_t c = context.getCurrentChar();
- encodeChar(c, buffer, e);
- if (e != BCExceptionNO) {
- return;
- }
- context.m_pos++;
- int32_t count = buffer.GetLength();
- if (count >= 4) {
- context.writeCodewords(encodeToCodewords(buffer, 0, e));
- if (e != BCExceptionNO) {
- return;
- }
- buffer.Delete(0, 4);
- int32_t newMode = CBC_HighLevelEncoder::lookAheadTest(
- context.m_msg, context.m_pos, getEncodingMode());
- if (newMode != getEncodingMode()) {
- context.signalEncoderChange(ASCII_ENCODATION);
- break;
- }
- }
- }
- buffer += (wchar_t)31;
- handleEOD(context, buffer, e);
+namespace {
+
+CFX_WideString EncodeToCodewords(const CFX_WideString& sb, int32_t startPos) {
+ int32_t len = sb.GetLength() - startPos;
+ if (len == 0)
+ return CFX_WideString();
+
+ wchar_t c1 = sb.GetAt(startPos);
+ wchar_t c2 = len >= 2 ? sb.GetAt(startPos + 1) : 0;
+ wchar_t c3 = len >= 3 ? sb.GetAt(startPos + 2) : 0;
+ wchar_t c4 = len >= 4 ? sb.GetAt(startPos + 3) : 0;
+ int32_t v = (c1 << 18) + (c2 << 12) + (c3 << 6) + c4;
+ constexpr int32_t kBuflen = 3;
+ wchar_t cw[kBuflen];
+ cw[0] = static_cast<wchar_t>((v >> 16) & 255);
+ cw[1] = static_cast<wchar_t>((v >> 8) & 255);
+ cw[2] = static_cast<wchar_t>(v & 255);
+ return CFX_WideString(cw, std::min(len, kBuflen));
}
-void CBC_EdifactEncoder::handleEOD(CBC_EncoderContext& context,
- CFX_WideString buffer,
- int32_t& e) {
+
+bool HandleEOD(CBC_EncoderContext* context, const CFX_WideString& buffer) {
int32_t count = buffer.GetLength();
- if (count == 0) {
- return;
- }
+ if (count == 0)
+ return true;
+ if (count > 4)
+ return false;
+
if (count == 1) {
- context.updateSymbolInfo(e);
- if (e != BCExceptionNO) {
- return;
- }
+ int32_t e = BCExceptionNO;
+ context->updateSymbolInfo(e);
+ if (e != BCExceptionNO)
+ return false;
+
int32_t available =
- context.m_symbolInfo->m_dataCapacity - context.getCodewordCount();
- int32_t remaining = context.getRemainingCharacters();
- if (remaining == 0 && available <= 2) {
- return;
- }
- }
- if (count > 4) {
- e = BCExceptionIllegalStateCountMustNotExceed4;
- return;
+ context->m_symbolInfo->m_dataCapacity - context->getCodewordCount();
+ int32_t remaining = context->getRemainingCharacters();
+ if (remaining == 0 && available <= 2)
+ return true;
}
+
int32_t restChars = count - 1;
- CFX_WideString encoded = encodeToCodewords(buffer, 0, e);
- if (e != BCExceptionNO) {
- return;
- }
- bool endOfSymbolReached = !context.hasMoreCharacters();
+ CFX_WideString encoded = EncodeToCodewords(buffer, 0);
+ if (encoded.IsEmpty())
+ return false;
+
+ bool endOfSymbolReached = !context->hasMoreCharacters();
bool restInAscii = endOfSymbolReached && restChars <= 2;
if (restChars <= 2) {
- context.updateSymbolInfo(context.getCodewordCount() + restChars, e);
- if (e != BCExceptionNO) {
- return;
- }
+ int32_t e = BCExceptionNO;
+ context->updateSymbolInfo(context->getCodewordCount() + restChars, e);
+ if (e != BCExceptionNO)
+ return false;
+
int32_t available =
- context.m_symbolInfo->m_dataCapacity - context.getCodewordCount();
+ context->m_symbolInfo->m_dataCapacity - context->getCodewordCount();
if (available >= 3) {
restInAscii = false;
- context.updateSymbolInfo(context.getCodewordCount() + encoded.GetLength(),
- e);
- if (e != BCExceptionNO) {
- return;
- }
+ context->updateSymbolInfo(
+ context->getCodewordCount() + encoded.GetLength(), e);
+ if (e != BCExceptionNO)
+ return false;
}
}
+
if (restInAscii) {
- context.resetSymbolInfo();
- context.m_pos -= restChars;
+ context->resetSymbolInfo();
+ context->m_pos -= restChars;
} else {
- context.writeCodewords(encoded);
+ context->writeCodewords(encoded);
}
- context.signalEncoderChange(ASCII_ENCODATION);
+ context->signalEncoderChange(ASCII_ENCODATION);
+ return true;
}
-void CBC_EdifactEncoder::encodeChar(wchar_t c, CFX_WideString& sb, int32_t& e) {
+void encodeChar(wchar_t c, CFX_WideString* sb, int32_t& e) {
if (c >= ' ' && c <= '?') {
- sb += c;
+ *sb += c;
} else if (c >= '@' && c <= '^') {
- sb += (wchar_t)(c - 64);
+ *sb += (wchar_t)(c - 64);
} else {
e = BCExceptionIllegalArgument;
}
}
-CFX_WideString CBC_EdifactEncoder::encodeToCodewords(CFX_WideString sb,
- int32_t startPos,
- int32_t& e) {
- int32_t len = sb.GetLength() - startPos;
- if (len == 0) {
- e = BCExceptionNoContents;
- return CFX_WideString();
- }
- wchar_t c1 = sb.GetAt(startPos);
- wchar_t c2 = len >= 2 ? sb.GetAt(startPos + 1) : 0;
- wchar_t c3 = len >= 3 ? sb.GetAt(startPos + 2) : 0;
- wchar_t c4 = len >= 4 ? sb.GetAt(startPos + 3) : 0;
- int32_t v = (c1 << 18) + (c2 << 12) + (c3 << 6) + c4;
- wchar_t cw1 = (wchar_t)((v >> 16) & 255);
- wchar_t cw2 = (wchar_t)((v >> 8) & 255);
- wchar_t cw3 = (wchar_t)(v & 255);
- CFX_WideString res;
- res += cw1;
- if (len >= 2) {
- res += cw2;
- }
- if (len >= 3) {
- res += cw3;
+} // namespace
+
+CBC_EdifactEncoder::CBC_EdifactEncoder() {}
+
+CBC_EdifactEncoder::~CBC_EdifactEncoder() {}
+
+int32_t CBC_EdifactEncoder::getEncodingMode() {
+ return EDIFACT_ENCODATION;
+}
+
+void CBC_EdifactEncoder::Encode(CBC_EncoderContext& context, int32_t& e) {
+ CFX_WideString buffer;
+ while (context.hasMoreCharacters()) {
+ wchar_t c = context.getCurrentChar();
+ encodeChar(c, &buffer, e);
+ if (e != BCExceptionNO) {
+ return;
+ }
+ context.m_pos++;
+ int32_t count = buffer.GetLength();
+ if (count >= 4) {
+ CFX_WideString encoded = EncodeToCodewords(buffer, 0);
+ if (encoded.IsEmpty()) {
+ e = BCExceptionGeneric;
+ return;
+ }
+ context.writeCodewords(encoded);
+ buffer.Delete(0, 4);
+ int32_t newMode = CBC_HighLevelEncoder::lookAheadTest(
+ context.m_msg, context.m_pos, getEncodingMode());
+ if (newMode != getEncodingMode()) {
+ context.signalEncoderChange(ASCII_ENCODATION);
+ break;
+ }
+ }
}
- return res;
+ buffer += static_cast<wchar_t>(31);
+ if (!HandleEOD(&context, buffer))
+ e = BCExceptionGeneric;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 12:03:40 +0000