1 files changed, 83 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/src/BC_ASCIIEncoder.cpp b/xfa/src/fxbarcode/src/BC_ASCIIEncoder.cpp
new file mode 100644
index 0000000000..52fec37b36
--- /dev/null
+++ b/xfa/src/fxbarcode/src/BC_ASCIIEncoder.cpp
@@ -0,0 +1,83 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "barcode.h"
+#include "include/BC_Encoder.h"
+#include "include/BC_Dimension.h"
+#include "include/BC_SymbolShapeHint.h"
+#include "include/BC_SymbolInfo.h"
+#include "include/BC_EncoderContext.h"
+#include "include/BC_HighLevelEncoder.h"
+#include "include/BC_ASCIIEncoder.h"
+CBC_ASCIIEncoder::CBC_ASCIIEncoder()
+{
+}
+CBC_ASCIIEncoder::~CBC_ASCIIEncoder()
+{
+}
+FX_INT32 CBC_ASCIIEncoder::getEncodingMode()
+{
+    return ASCII_ENCODATION;
+}
+void CBC_ASCIIEncoder::Encode(CBC_EncoderContext &context, FX_INT32 &e)
+{
+    FX_INT32 n = CBC_HighLevelEncoder::determineConsecutiveDigitCount(context.m_msg, context.m_pos);
+    if (n >= 2) {
+        FX_WCHAR code = encodeASCIIDigits(context.m_msg.GetAt(context.m_pos), context.m_msg.GetAt(context.m_pos + 1), e);
+        if (e != BCExceptionNO) {
+            return;
+        }
+        context.writeCodeword(code);
+        context.m_pos += 2;
+    } else {
+        FX_WCHAR c = context.getCurrentChar();
+        FX_INT32 newMode = CBC_HighLevelEncoder::lookAheadTest(context.m_msg, context.m_pos, getEncodingMode());
+        if (newMode != getEncodingMode()) {
+            switch (newMode) {
+                case BASE256_ENCODATION:
+                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_BASE256);
+                    context.signalEncoderChange(BASE256_ENCODATION);
+                    return;
+                case C40_ENCODATION:
+                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_C40);
+                    context.signalEncoderChange(C40_ENCODATION);
+                    return;
+                case X12_ENCODATION:
+                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_ANSIX12);
+                    context.signalEncoderChange(X12_ENCODATION);
+                    break;
+                case TEXT_ENCODATION:
+                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_TEXT);
+                    context.signalEncoderChange(TEXT_ENCODATION);
+                    break;
+                case EDIFACT_ENCODATION:
+                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_EDIFACT);
+                    context.signalEncoderChange(EDIFACT_ENCODATION);
+                    break;
+                default:
+                    e = BCExceptionIllegalStateIllegalMode;
+                    return;
+            }
+        } else if (CBC_HighLevelEncoder::isExtendedASCII(c)) {
+            context.writeCodeword(CBC_HighLevelEncoder::UPPER_SHIFT);
+            context.writeCodeword((FX_WCHAR) (c - 128 + 1));
+            context.m_pos++;
+        } else {
+            context.writeCodeword((FX_WCHAR) (c + 1));
+            context.m_pos++;
+        }
+    }
+}
+FX_WCHAR CBC_ASCIIEncoder::encodeASCIIDigits(FX_WCHAR digit1, FX_WCHAR digit2, FX_INT32 &e)
+{
+    if (CBC_HighLevelEncoder::isDigit(digit1) && CBC_HighLevelEncoder::isDigit(digit2)) {
+        FX_INT32 num = (digit1 - 48) * 10 + (digit2 - 48);
+        FX_WCHAR a = (FX_WCHAR) (num + 130);
+        return (FX_WCHAR) (num + 130);
+    }
+    e = BCExceptionIllegalArgumentNotGigits;
+    return 0;
+}