1*3ac0a46fSAndroid Build Coastguard Worker // Copyright 2014 The PDFium Authors 2*3ac0a46fSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be 3*3ac0a46fSAndroid Build Coastguard Worker // found in the LICENSE file. 4*3ac0a46fSAndroid Build Coastguard Worker 5*3ac0a46fSAndroid Build Coastguard Worker // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6*3ac0a46fSAndroid Build Coastguard Worker 7*3ac0a46fSAndroid Build Coastguard Worker #ifndef FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_ 8*3ac0a46fSAndroid Build Coastguard Worker #define FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_ 9*3ac0a46fSAndroid Build Coastguard Worker 10*3ac0a46fSAndroid Build Coastguard Worker #include "core/fxcrt/widestring.h" 11*3ac0a46fSAndroid Build Coastguard Worker 12*3ac0a46fSAndroid Build Coastguard Worker class CBC_HighLevelEncoder { 13*3ac0a46fSAndroid Build Coastguard Worker public: 14*3ac0a46fSAndroid Build Coastguard Worker enum class Encoding : int8_t { 15*3ac0a46fSAndroid Build Coastguard Worker UNKNOWN = -1, 16*3ac0a46fSAndroid Build Coastguard Worker ASCII = 0, 17*3ac0a46fSAndroid Build Coastguard Worker C40, 18*3ac0a46fSAndroid Build Coastguard Worker TEXT, 19*3ac0a46fSAndroid Build Coastguard Worker X12, 20*3ac0a46fSAndroid Build Coastguard Worker EDIFACT, 21*3ac0a46fSAndroid Build Coastguard Worker BASE256, 22*3ac0a46fSAndroid Build Coastguard Worker LAST = BASE256, 23*3ac0a46fSAndroid Build Coastguard Worker }; 24*3ac0a46fSAndroid Build Coastguard Worker 25*3ac0a46fSAndroid Build Coastguard Worker CBC_HighLevelEncoder() = delete; 26*3ac0a46fSAndroid Build Coastguard Worker ~CBC_HighLevelEncoder() = delete; 27*3ac0a46fSAndroid Build Coastguard Worker 28*3ac0a46fSAndroid Build Coastguard Worker // Returns an empty string on failure. 29*3ac0a46fSAndroid Build Coastguard Worker static WideString EncodeHighLevel(const WideString& msg); 30*3ac0a46fSAndroid Build Coastguard Worker 31*3ac0a46fSAndroid Build Coastguard Worker static Encoding LookAheadTest(const WideString& msg, 32*3ac0a46fSAndroid Build Coastguard Worker size_t startpos, 33*3ac0a46fSAndroid Build Coastguard Worker Encoding currentMode); 34*3ac0a46fSAndroid Build Coastguard Worker static bool IsExtendedASCII(wchar_t ch); 35*3ac0a46fSAndroid Build Coastguard Worker 36*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t LATCH_TO_C40 = 230; 37*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t LATCH_TO_BASE256 = 231; 38*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t UPPER_SHIFT = 235; 39*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t LATCH_TO_ANSIX12 = 238; 40*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t LATCH_TO_TEXT = 239; 41*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t LATCH_TO_EDIFACT = 240; 42*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t C40_UNLATCH = 254; 43*3ac0a46fSAndroid Build Coastguard Worker static const wchar_t X12_UNLATCH = 254; 44*3ac0a46fSAndroid Build Coastguard Worker }; 45*3ac0a46fSAndroid Build Coastguard Worker 46*3ac0a46fSAndroid Build Coastguard Worker #endif // FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_ 47