diff options
Diffstat (limited to 'xfa/fee/fx_wordbreak/fx_wordbreak_impl.cpp')
| -rw-r--r-- | xfa/fee/fx_wordbreak/fx_wordbreak_impl.cpp | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/xfa/fee/fx_wordbreak/fx_wordbreak_impl.cpp b/xfa/fee/fx_wordbreak/fx_wordbreak_impl.cpp deleted file mode 100644 index eda5368afb..0000000000 --- a/xfa/fee/fx_wordbreak/fx_wordbreak_impl.cpp +++ /dev/null @@ -1,218 +0,0 @@ -// 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 "xfa/fee/fx_wordbreak/fx_wordbreak_impl.h" - -FX_WordBreakProp FX_GetWordBreakProperty(FX_WCHAR wcCodePoint) { - uint32_t dwProperty = - (uint32_t)gs_FX_WordBreak_CodePointProperties[wcCodePoint >> 1]; - return (FX_WordBreakProp)(((wcCodePoint)&1) ? (dwProperty & 0x0F) - : (dwProperty >> 4)); -} - -CFX_CharIter::CFX_CharIter(const CFX_WideString& wsText) - : m_wsText(wsText), m_nIndex(0) { - ASSERT(!wsText.IsEmpty()); -} - -CFX_CharIter::~CFX_CharIter() {} - -FX_BOOL CFX_CharIter::Next(FX_BOOL bPrev) { - if (bPrev) { - if (m_nIndex <= 0) { - return FALSE; - } - m_nIndex--; - } else { - if (m_nIndex + 1 >= m_wsText.GetLength()) { - return FALSE; - } - m_nIndex++; - } - return TRUE; -} -FX_WCHAR CFX_CharIter::GetChar() { - return m_wsText.GetAt(m_nIndex); -} -void CFX_CharIter::SetAt(int32_t nIndex) { - if (nIndex < 0 || nIndex >= m_wsText.GetLength()) { - return; - } - m_nIndex = nIndex; -} -int32_t CFX_CharIter::GetAt() const { - return m_nIndex; -} -FX_BOOL CFX_CharIter::IsEOF(FX_BOOL bTail) const { - return bTail ? (m_nIndex + 1 == m_wsText.GetLength()) : (m_nIndex == 0); -} -IFX_CharIter* CFX_CharIter::Clone() { - CFX_CharIter* pIter = new CFX_CharIter(m_wsText); - pIter->m_nIndex = m_nIndex; - return pIter; -} - -CFX_WordBreak::CFX_WordBreak() {} - -CFX_WordBreak::~CFX_WordBreak() {} - -void CFX_WordBreak::Attach(IFX_CharIter* pIter) { - ASSERT(pIter); - m_pCurIter.reset(pIter); -} -void CFX_WordBreak::Attach(const CFX_WideString& wsText) { - m_pCurIter.reset(new CFX_CharIter(wsText)); -} -FX_BOOL CFX_WordBreak::Next(FX_BOOL bPrev) { - std::unique_ptr<IFX_CharIter> pIter( - (bPrev ? m_pPreIter : m_pCurIter)->Clone()); - if (pIter->IsEOF(!bPrev)) - return FALSE; - - pIter->Next(bPrev); - if (!FindNextBreakPos(pIter.get(), bPrev, TRUE)) - return FALSE; - - if (bPrev) { - m_pCurIter = std::move(m_pPreIter); - m_pCurIter->Next(TRUE); - m_pPreIter = std::move(pIter); - } else { - m_pPreIter = std::move(m_pCurIter); - m_pPreIter->Next(); - m_pCurIter = std::move(pIter); - } - return TRUE; -} -void CFX_WordBreak::SetAt(int32_t nIndex) { - m_pPreIter.reset(); - m_pCurIter->SetAt(nIndex); - FindNextBreakPos(m_pCurIter.get(), TRUE, FALSE); - m_pPreIter = std::move(m_pCurIter); - m_pCurIter.reset(m_pPreIter->Clone()); - FindNextBreakPos(m_pCurIter.get(), FALSE, FALSE); -} -int32_t CFX_WordBreak::GetWordPos() const { - return m_pPreIter->GetAt(); -} -int32_t CFX_WordBreak::GetWordLength() const { - return m_pCurIter->GetAt() - m_pPreIter->GetAt() + 1; -} -void CFX_WordBreak::GetWord(CFX_WideString& wsWord) const { - int32_t nWordLength = GetWordLength(); - if (nWordLength <= 0) { - return; - } - FX_WCHAR* lpBuf = wsWord.GetBuffer(nWordLength); - std::unique_ptr<IFX_CharIter> pTempIter(m_pPreIter->Clone()); - int32_t i = 0; - while (pTempIter->GetAt() <= m_pCurIter->GetAt()) { - lpBuf[i++] = pTempIter->GetChar(); - if (!pTempIter->Next()) - break; - } - wsWord.ReleaseBuffer(nWordLength); -} -FX_BOOL CFX_WordBreak::IsEOF(FX_BOOL bTail) const { - return m_pCurIter->IsEOF(bTail); -} -FX_BOOL CFX_WordBreak::FindNextBreakPos(IFX_CharIter* pIter, - FX_BOOL bPrev, - FX_BOOL bFromNext) { - FX_WordBreakProp ePreType = FX_WordBreakProp_None; - FX_WordBreakProp eCurType = FX_WordBreakProp_None; - FX_WordBreakProp eNextType = FX_WordBreakProp_None; - if (pIter->IsEOF(!bPrev)) { - return TRUE; - } - if (!(bFromNext || pIter->IsEOF(bPrev))) { - pIter->Next(!bPrev); - FX_WCHAR wcTemp = pIter->GetChar(); - ePreType = FX_GetWordBreakProperty(wcTemp); - pIter->Next(bPrev); - } - FX_WCHAR wcTemp = pIter->GetChar(); - eCurType = FX_GetWordBreakProperty(wcTemp); - FX_BOOL bFirst = TRUE; - do { - pIter->Next(bPrev); - FX_WCHAR wcTemp = pIter->GetChar(); - eNextType = FX_GetWordBreakProperty(wcTemp); - uint16_t wBreak = - gs_FX_WordBreak_Table[eCurType] & ((uint16_t)(1 << eNextType)); - if (wBreak) { - if (pIter->IsEOF(!bPrev)) { - pIter->Next(!bPrev); - return TRUE; - } - if (bFirst) { - int32_t nFlags = 0; - if (eCurType == FX_WordBreakProp_MidLetter) { - if (eNextType == FX_WordBreakProp_ALetter) { - nFlags = 1; - } - } else if (eCurType == FX_WordBreakProp_MidNum) { - if (eNextType == FX_WordBreakProp_Numberic) { - nFlags = 2; - } - } else if (eCurType == FX_WordBreakProp_MidNumLet) { - if (eNextType == FX_WordBreakProp_ALetter) { - nFlags = 1; - } else if (eNextType == FX_WordBreakProp_Numberic) { - nFlags = 2; - } - } - if (nFlags > 0) { - ASSERT(nFlags <= 2); - if (!((nFlags == 1 && ePreType == FX_WordBreakProp_ALetter) || - (nFlags == 2 && ePreType == FX_WordBreakProp_Numberic))) { - pIter->Next(!bPrev); - return TRUE; - } - pIter->Next(bPrev); - wBreak = FALSE; - } - bFirst = FALSE; - } - if (wBreak) { - int32_t nFlags = 0; - if (eNextType == FX_WordBreakProp_MidLetter) { - if (eCurType == FX_WordBreakProp_ALetter) { - nFlags = 1; - } - } else if (eNextType == FX_WordBreakProp_MidNum) { - if (eCurType == FX_WordBreakProp_Numberic) { - nFlags = 2; - } - } else if (eNextType == FX_WordBreakProp_MidNumLet) { - if (eCurType == FX_WordBreakProp_ALetter) { - nFlags = 1; - } else if (eCurType == FX_WordBreakProp_Numberic) { - nFlags = 2; - } - } - if (nFlags <= 0) { - pIter->Next(!bPrev); - return TRUE; - } - ASSERT(nFlags <= 2); - pIter->Next(bPrev); - wcTemp = pIter->GetChar(); - eNextType = (FX_WordBreakProp)FX_GetWordBreakProperty(wcTemp); - if (!((nFlags == 1 && eNextType == FX_WordBreakProp_ALetter) || - (nFlags == 2 && eNextType == FX_WordBreakProp_Numberic))) { - pIter->Next(!bPrev); - pIter->Next(!bPrev); - return TRUE; - } - } - } - ePreType = eCurType; - eCurType = eNextType; - bFirst = FALSE; - } while (!pIter->IsEOF(!bPrev)); - return TRUE; -} |