michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:expandtab:shiftwidth=2:tabstop=2:
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "ia2AccessibleText.h"
michael@0: 
michael@0: #include "Accessible2.h"
michael@0: #include "AccessibleText_i.c"
michael@0: 
michael@0: #include "HyperTextAccessibleWrap.h"
michael@0: #include "HyperTextAccessible-inl.h"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: // IAccessibleText
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::addSelection(long aStartOffset, long aEndOffset)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   return textAcc->AddToSelection(aStartOffset, aEndOffset) ?
michael@0:     S_OK : E_INVALIDARG;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_attributes(long aOffset, long *aStartOffset,
michael@0:                                   long *aEndOffset, BSTR *aTextAttributes)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aStartOffset || !aEndOffset || !aTextAttributes)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aStartOffset = 0;
michael@0:   *aEndOffset = 0;
michael@0:   *aTextAttributes = nullptr;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   int32_t startOffset = 0, endOffset = 0;
michael@0:   nsCOMPtr<nsIPersistentProperties> attributes =
michael@0:     textAcc->TextAttributes(true, aOffset, &startOffset, &endOffset);
michael@0: 
michael@0:   HRESULT hr = AccessibleWrap::ConvertToIA2Attributes(attributes,
michael@0:                                                       aTextAttributes);
michael@0:   if (FAILED(hr))
michael@0:     return hr;
michael@0: 
michael@0:   *aStartOffset = startOffset;
michael@0:   *aEndOffset = endOffset;
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_caretOffset(long *aOffset)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aOffset)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aOffset = -1;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aOffset = textAcc->CaretOffset();
michael@0:   return *aOffset != -1 ? S_OK : S_FALSE;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_characterExtents(long aOffset,
michael@0:                                         enum IA2CoordinateType aCoordType,
michael@0:                                         long* aX, long* aY,
michael@0:                                         long* aWidth, long* aHeight)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aX || !aY || !aWidth || !aHeight)
michael@0:     return E_INVALIDARG;
michael@0:   *aX = *aY = *aWidth = *aHeight = 0;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   uint32_t geckoCoordType = (aCoordType == IA2_COORDTYPE_SCREEN_RELATIVE) ?
michael@0:     nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE :
michael@0:     nsIAccessibleCoordinateType::COORDTYPE_PARENT_RELATIVE;
michael@0: 
michael@0:   nsIntRect rect = textAcc->CharBounds(aOffset, geckoCoordType);
michael@0: 
michael@0:   *aX = rect.x;
michael@0:   *aY = rect.y;
michael@0:   *aWidth = rect.width;
michael@0:   *aHeight = rect.height;
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_nSelections(long* aNSelections)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aNSelections)
michael@0:     return E_INVALIDARG;
michael@0:   *aNSelections = 0;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aNSelections = textAcc->SelectionCount();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_offsetAtPoint(long aX, long aY,
michael@0:                                      enum IA2CoordinateType aCoordType,
michael@0:                                      long* aOffset)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aOffset)
michael@0:     return E_INVALIDARG;
michael@0:   *aOffset = 0;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   uint32_t geckoCoordType = (aCoordType == IA2_COORDTYPE_SCREEN_RELATIVE) ?
michael@0:     nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE :
michael@0:     nsIAccessibleCoordinateType::COORDTYPE_PARENT_RELATIVE;
michael@0: 
michael@0:   *aOffset = textAcc->OffsetAtPoint(aX, aY, geckoCoordType);
michael@0:   return *aOffset == -1 ? S_FALSE : S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_selection(long aSelectionIndex, long* aStartOffset,
michael@0:                                  long* aEndOffset)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aStartOffset || !aEndOffset)
michael@0:     return E_INVALIDARG;
michael@0:   *aStartOffset = *aEndOffset = 0;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   int32_t startOffset = 0, endOffset = 0;
michael@0:   if (!textAcc->SelectionBoundsAt(aSelectionIndex, &startOffset, &endOffset))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aStartOffset = startOffset;
michael@0:   *aEndOffset = endOffset;
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_text(long aStartOffset, long aEndOffset, BSTR* aText)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aText)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aText = nullptr;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (!textAcc->IsValidRange(aStartOffset, aEndOffset))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   nsAutoString text;
michael@0:   textAcc->TextSubstring(aStartOffset, aEndOffset, text);
michael@0:   if (text.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aText = ::SysAllocStringLen(text.get(), text.Length());
michael@0:   return *aText ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_textBeforeOffset(long aOffset,
michael@0:                                         enum IA2TextBoundaryType aBoundaryType,
michael@0:                                         long* aStartOffset, long* aEndOffset,
michael@0:                                         BSTR* aText)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aStartOffset || !aEndOffset || !aText)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aStartOffset = *aEndOffset = 0;
michael@0:   *aText = nullptr;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (!textAcc->IsValidOffset(aOffset))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   nsAutoString text;
michael@0:   int32_t startOffset = 0, endOffset = 0;
michael@0: 
michael@0:   if (aBoundaryType == IA2_TEXT_BOUNDARY_ALL) {
michael@0:     startOffset = 0;
michael@0:     endOffset = textAcc->CharacterCount();
michael@0:     textAcc->TextSubstring(startOffset, endOffset, text);
michael@0:   } else {
michael@0:     AccessibleTextBoundary boundaryType = GetGeckoTextBoundary(aBoundaryType);
michael@0:     if (boundaryType == -1)
michael@0:       return S_FALSE;
michael@0: 
michael@0:     textAcc->TextBeforeOffset(aOffset, boundaryType, &startOffset, &endOffset, text);
michael@0:   }
michael@0: 
michael@0:   *aStartOffset = startOffset;
michael@0:   *aEndOffset = endOffset;
michael@0: 
michael@0:   if (text.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aText = ::SysAllocStringLen(text.get(), text.Length());
michael@0:   return *aText ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_textAfterOffset(long aOffset,
michael@0:                                        enum IA2TextBoundaryType aBoundaryType,
michael@0:                                        long* aStartOffset, long* aEndOffset,
michael@0:                                        BSTR* aText)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aStartOffset || !aEndOffset || !aText)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aStartOffset = 0;
michael@0:   *aEndOffset = 0;
michael@0:   *aText = nullptr;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (!textAcc->IsValidOffset(aOffset))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   nsAutoString text;
michael@0:   int32_t startOffset = 0, endOffset = 0;
michael@0: 
michael@0:   if (aBoundaryType == IA2_TEXT_BOUNDARY_ALL) {
michael@0:     startOffset = 0;
michael@0:     endOffset = textAcc->CharacterCount();
michael@0:     textAcc->TextSubstring(startOffset, endOffset, text);
michael@0:   } else {
michael@0:     AccessibleTextBoundary boundaryType = GetGeckoTextBoundary(aBoundaryType);
michael@0:     if (boundaryType == -1)
michael@0:       return S_FALSE;
michael@0:     textAcc->TextAfterOffset(aOffset, boundaryType, &startOffset, &endOffset, text);
michael@0:   }
michael@0: 
michael@0:   *aStartOffset = startOffset;
michael@0:   *aEndOffset = endOffset;
michael@0: 
michael@0:   if (text.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aText = ::SysAllocStringLen(text.get(), text.Length());
michael@0:   return *aText ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_textAtOffset(long aOffset,
michael@0:                                     enum IA2TextBoundaryType aBoundaryType,
michael@0:                                     long* aStartOffset, long* aEndOffset,
michael@0:                                     BSTR* aText)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aStartOffset || !aEndOffset || !aText)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aStartOffset = *aEndOffset = 0;
michael@0:   *aText = nullptr;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (!textAcc->IsValidOffset(aOffset))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   nsAutoString text;
michael@0:   int32_t startOffset = 0, endOffset = 0;
michael@0:   if (aBoundaryType == IA2_TEXT_BOUNDARY_ALL) {
michael@0:     startOffset = 0;
michael@0:     endOffset = textAcc->CharacterCount();
michael@0:     textAcc->TextSubstring(startOffset, endOffset, text);
michael@0:   } else {
michael@0:     AccessibleTextBoundary boundaryType = GetGeckoTextBoundary(aBoundaryType);
michael@0:     if (boundaryType == -1)
michael@0:       return S_FALSE;
michael@0:     textAcc->TextAtOffset(aOffset, boundaryType, &startOffset, &endOffset, text);
michael@0:   }
michael@0: 
michael@0:   *aStartOffset = startOffset;
michael@0:   *aEndOffset = endOffset;
michael@0: 
michael@0:   if (text.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aText = ::SysAllocStringLen(text.get(), text.Length());
michael@0:   return *aText ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::removeSelection(long aSelectionIndex)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   return textAcc->RemoveFromSelection(aSelectionIndex) ?
michael@0:     S_OK : E_INVALIDARG;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::setCaretOffset(long aOffset)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (!textAcc->IsValidOffset(aOffset))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   textAcc->SetCaretOffset(aOffset);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::setSelection(long aSelectionIndex, long aStartOffset,
michael@0:                                 long aEndOffset)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   return textAcc->SetSelectionBoundsAt(aSelectionIndex, aStartOffset, aEndOffset) ?
michael@0:     S_OK : E_INVALIDARG;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_nCharacters(long* aNCharacters)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aNCharacters)
michael@0:     return E_INVALIDARG;
michael@0:   *aNCharacters = 0;
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aNCharacters  = textAcc->CharacterCount();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::scrollSubstringTo(long aStartIndex, long aEndIndex,
michael@0:                                      enum IA2ScrollType aScrollType)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (!textAcc->IsValidRange(aStartIndex, aEndIndex))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   textAcc->ScrollSubstringTo(aStartIndex, aEndIndex, aScrollType);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::scrollSubstringToPoint(long aStartIndex, long aEndIndex,
michael@0:                                           enum IA2CoordinateType aCoordType,
michael@0:                                           long aX, long aY)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   HyperTextAccessible* textAcc = static_cast<HyperTextAccessibleWrap*>(this);
michael@0:   if (textAcc->IsDefunct())
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (!textAcc->IsValidRange(aStartIndex, aEndIndex))
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   uint32_t geckoCoordType = (aCoordType == IA2_COORDTYPE_SCREEN_RELATIVE) ?
michael@0:     nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE :
michael@0:     nsIAccessibleCoordinateType::COORDTYPE_PARENT_RELATIVE;
michael@0: 
michael@0:   textAcc->ScrollSubstringToPoint(aStartIndex, aEndIndex,
michael@0:                                   geckoCoordType, aX, aY);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_newText(IA2TextSegment *aNewText)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   return GetModifiedText(true, aNewText);
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleText::get_oldText(IA2TextSegment *aOldText)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   return GetModifiedText(false, aOldText);
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: // ia2AccessibleText
michael@0: 
michael@0: HRESULT
michael@0: ia2AccessibleText::GetModifiedText(bool aGetInsertedText,
michael@0:                                    IA2TextSegment *aText)
michael@0: {
michael@0:   if (!aText)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   uint32_t startOffset = 0, endOffset = 0;
michael@0:   nsAutoString text;
michael@0: 
michael@0:   nsresult rv = GetModifiedText(aGetInsertedText, text,
michael@0:                                 &startOffset, &endOffset);
michael@0:   if (NS_FAILED(rv))
michael@0:     return GetHRESULT(rv);
michael@0: 
michael@0:   aText->start = startOffset;
michael@0:   aText->end = endOffset;
michael@0: 
michael@0:   if (text.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   aText->text = ::SysAllocStringLen(text.get(), text.Length());
michael@0:   return aText->text ? S_OK : E_OUTOFMEMORY;
michael@0: }
michael@0: 
michael@0: AccessibleTextBoundary
michael@0: ia2AccessibleText::GetGeckoTextBoundary(enum IA2TextBoundaryType aBoundaryType)
michael@0: {
michael@0:   switch (aBoundaryType) {
michael@0:     case IA2_TEXT_BOUNDARY_CHAR:
michael@0:       return nsIAccessibleText::BOUNDARY_CHAR;
michael@0:     case IA2_TEXT_BOUNDARY_WORD:
michael@0:       return nsIAccessibleText::BOUNDARY_WORD_START;
michael@0:     case IA2_TEXT_BOUNDARY_LINE:
michael@0:       return nsIAccessibleText::BOUNDARY_LINE_START;
michael@0:     //case IA2_TEXT_BOUNDARY_SENTENCE:
michael@0:     //case IA2_TEXT_BOUNDARY_PARAGRAPH:
michael@0:       // XXX: not implemented
michael@0:     default:
michael@0:       return -1;
michael@0:   }
michael@0: }
michael@0: