public SearchResultMatch FindNext(ITextIterator textIterator, int offset, int length)
{
string document = textIterator.TextBuffer.GetText(0, textIterator.TextBuffer.Length);
while (textIterator.MoveAhead(1) && TextSelection.IsInsideRange(textIterator.Position, offset, length)) {
Match m = regex.Match(document, textIterator.Position);
if (m == null || !m.Success) {
while (textIterator.Position < document.Length - 1) {
if (!textIterator.MoveAhead(1))
return null;
}
} else {
int delta = m.Index - textIterator.Position;
if (delta <= 0 || textIterator.MoveAhead(delta)) {
if (TextSelection.IsInsideRange(m.Index + m.Length - 1, offset, length)) {
return new RegexSearchResult(m);
} else {
return null;
}
} else {
return null;
}
}
}
return null;
}
/// <summary>
/// Determines number of line breaks before position
/// </summary>
public static int LineBreaksBeforePosition(ITextIterator iterator, int position) {
int count = 0;
if (position > 0) {
for (int i = position - 1; i >= 0; i--) {
char ch = iterator[i];
if (!Char.IsWhiteSpace(ch))
return count;
if (ch == '\r') {
count++;
if (i > 0 && iterator[i - 1] == '\n') {
i--;
}
} else if (ch == '\n') {
count++;
if (i > 0 && iterator[i - 1] == '\r') {
i--;
}
}
}
}
return count;
}
public SearchResult FindNext(ITextIterator textIterator, int offset, int length)
{
string document = textIterator.TextBuffer.GetText(0, textIterator.TextBuffer.Length);
while (textIterator.MoveAhead(1) && TextSelection.IsInsideRange(textIterator.Position, offset, length))
{
Match m = regex.Match(document, textIterator.Position);
if (m == null || m.Index <= 0 || m.Length <= 0)
{
}
else
{
int delta = m.Index - textIterator.Position;
if (delta <= 0 || textIterator.MoveAhead(delta))
{
if (TextSelection.IsInsideRange(m.Index + m.Length - 1, offset, length))
{
return(new RegexSearchResult(m));
}
else
{
return(null);
}
}
else
{
return(null);
}
}
}
return(null);
}
/// <summary>
/// Determines number of line breaks after position
/// </summary>
public static int LineBreaksAfterPosition(ITextIterator iterator, int position)
{
int count = 0;
for (int i = position; i < iterator.Length; i++)
{
char ch = iterator[i];
if (!Char.IsWhiteSpace(ch))
{
return(count);
}
if (ch == '\r')
{
count++;
if (i < iterator.Length - 1 && iterator[i + 1] == '\n')
{
i++;
}
}
else if (ch == '\n')
{
count++;
if (i < iterator.Length - 1 && iterator[i + 1] == '\r')
{
i++;
}
}
}
return(count);
}
int InternalFindNext(ITextIterator textIterator, int offset, int length)
{
while (textIterator.MoveAhead(1))
{
if (textIterator.Position >= offset + length)
{
textIterator.Position = offset;
}
if (SearchOptions.MatchCase ? MatchCaseSensitive(textIterator.Document, textIterator.Position, searchPattern) : MatchCaseInsensitive(textIterator.Document, textIterator.Position, searchPattern))
{
if (!SearchOptions.MatchWholeWord || IsWholeWordAt(textIterator.Document, textIterator.Position, searchPattern.Length))
{
if (TextSelection.IsInsideRange(textIterator.Position + searchPattern.Length - 1, offset, length))
{
return(textIterator.Position);
}
else
{
return(-1);
}
}
}
}
return(-1);
}
public SearchResultMatch FindNext(ITextIterator textIterator)
{
string document = textIterator.TextBuffer.GetText(0, textIterator.TextBuffer.Length);
while (textIterator.MoveAhead(1))
{
Match m = regex.Match(document, textIterator.Position);
if (m == null || !m.Success)
{
while (textIterator.Position < document.Length - 1)
{
if (!textIterator.MoveAhead(1))
{
return(null);
}
}
}
else
{
int delta = m.Index - textIterator.Position;
if (delta <= 0 || textIterator.MoveAhead(delta))
{
return(new RegexSearchResult(m));
}
else
{
return(null);
}
}
}
return(null);
}
int InternalFindNext(ITextIterator textIterator, int offset, int length)
{
while (textIterator.MoveAhead(1))
{
if (textIterator.Position >= offset + length)
{
textIterator.Position = offset;
}
int position = textIterator.Position;
if (Match(textIterator.Document, position, !SearchOptions.MatchCase, 0))
{
if (!SearchOptions.MatchWholeWord || SearchReplaceUtilities.IsWholeWordAt(textIterator.Document, position, curMatchEndOffset - position))
{
if (TextSelection.IsInsideRange(curMatchEndOffset - 1, offset, length))
{
textIterator.MoveAhead(curMatchEndOffset - position - 1);
return(position);
}
else
{
return(-1);
}
}
}
}
return(-1);
}
public ISearchResult FindNext(ITextIterator textIterator, SearchOptions options, bool reverseSearch)
{
if (reverseSearch)
throw new NotSupportedException ();
int charCount = InternalFindNext(textIterator, options);
return charCount != -1 ? new DefaultSearchResult (textIterator, charCount) : null;
}
public DefaultSearchResult(ITextIterator iter, int length)
{
position = iter.Position;
offset = iter.DocumentOffset;
line = iter.Line + 1;
column = iter.Column + 1;
this.length = length;
documentInformation = iter.DocumentInformation;
}
public SearchResultMatch FindNext(IProgressMonitor monitor)
{
// insanity check
Debug.Assert(searchStrategy != null);
Debug.Assert(documentIterator != null);
Debug.Assert(textIteratorBuilder != null);
if (monitor != null && monitor.CancellationToken.IsCancellationRequested)
{
return(null);
}
if (info != null && textIterator != null && documentIterator.CurrentFileName != null)
{
ProvidedDocumentInformation currentInfo = documentIterator.Current;
if (currentInfo != null)
{
if (!info.Equals(currentInfo)) // create new iterator, if document changed
{
info = currentInfo;
textIterator = textIteratorBuilder.BuildTextIterator(info);
}
else // old document -> initialize iterator position to caret pos
{
textIterator.Position = info.CurrentOffset;
}
SearchResultMatch result = CreateNamedSearchResult(searchStrategy.FindNext(textIterator));
if (result != null)
{
info.CurrentOffset = textIterator.Position;
return(result);
}
}
}
// not found or first start -> move forward to the next document
if (documentIterator.MoveForward())
{
info = documentIterator.Current;
// document is valid for searching -> set iterator & fileName
if (info != null && info.EndOffset >= 0 && info.EndOffset <= info.Document.TextLength)
{
textIterator = textIteratorBuilder.BuildTextIterator(info);
}
else
{
textIterator = null;
}
return(FindNext(monitor));
}
return(null);
}
int InternalFindNext(ITextIterator textIterator)
{
while (textIterator.MoveAhead(1)) {
if (SearchOptions.MatchCase ? MatchCaseSensitive(textIterator.Document, textIterator.Position, searchPattern) : MatchCaseInsensitive(textIterator.Document, textIterator.Position, searchPattern)) {
if (!SearchOptions.MatchWholeWord || IsWholeWordAt(textIterator.Document, textIterator.Position, searchPattern.Length)) {
return textIterator.Position;
}
}
}
return -1;
}
public int CopyPrecedingLineBreaks(ITextIterator iterator, int position) {
int lineBreakCount = Whitespace.LineBreaksBeforePosition(iterator, position);
int recentlyAddedCount = RecentlyAddedLineBreakCount();
int breaks = lineBreakCount - recentlyAddedCount;
for (int i = 0; i < breaks; i++) {
HardLineBreak();
}
return breaks;
}
int InternalFindNext(ITextIterator textIterator)
{
// while (textIterator.MoveAhead(1)) {
// if (SearchOptions.MatchCase ? MatchCaseSensitive(textIterator.TextBuffer, textIterator.Position, searchPattern) : MatchCaseInsensitive(textIterator.TextBuffer, textIterator.Position, searchPattern)) {
// if (!SearchOptions.MatchWholeWord || IsWholeWordAt(textIterator.TextBuffer, textIterator.Position, searchPattern.Length)) {
// return textIterator.Position;
// }
// }
// }
return(-1);
}
public int CopyFollowingLineBreaks(ITextIterator iterator, int position)
{
var lineBreakCount = Whitespace.LineBreaksAfterPosition(iterator, position);
var recentlyAddedCount = RecentlyAddedLineBreakCount();
var breaks = lineBreakCount - recentlyAddedCount;
for (var i = 0; i < breaks; i++)
{
HardLineBreak();
}
return(breaks);
}
public int CopyPrecedingLineBreaks(ITextIterator iterator, int position)
{
int lineBreakCount = Whitespace.LineBreaksBeforePosition(iterator, position);
int recentlyAddedCount = RecentlyAddedLineBreakCount();
int breaks = lineBreakCount - recentlyAddedCount;
for (int i = 0; i < breaks; i++)
{
HardLineBreak();
}
return(breaks);
}
int InternalFindNext(ITextIterator textIterator)
{
while (textIterator.MoveAhead(1))
{
if (SearchOptions.MatchCase ? MatchCaseSensitive(textIterator.Document, textIterator.Position, searchPattern) : MatchCaseInsensitive(textIterator.Document, textIterator.Position, searchPattern))
{
if (!SearchOptions.MatchWholeWord || IsWholeWordAt(textIterator.Document, textIterator.Position, searchPattern.Length))
{
return(textIterator.Position);
}
}
}
return(-1);
}
/// <summary>
/// Determines if there is only whitespace and a line break before position
/// </summary>
public static bool IsNewLineBeforePosition(ITextIterator iterator, int position) {
if (position > 0) {
for (int i = position - 1; i >= 0; i--) {
char ch = iterator[i];
if (!Char.IsWhiteSpace(ch))
return false;
if (ch.IsLineBreak())
return true;
}
}
return false;
}
int InternalFindNext(ITextIterator textIterator, int offset, int length)
{
while (textIterator.MoveAhead(1) && TextSelection.IsInsideRange(textIterator.Position, offset, length)) {
if (SearchOptions.MatchCase ? MatchCaseSensitive(textIterator.Document, textIterator.Position, searchPattern) : MatchCaseInsensitive(textIterator.Document, textIterator.Position, searchPattern)) {
if (!SearchOptions.MatchWholeWord || IsWholeWordAt(textIterator.Document, textIterator.Position, searchPattern.Length)) {
if (TextSelection.IsInsideRange(textIterator.Position + searchPattern.Length - 1, offset, length)) {
return textIterator.Position;
} else {
return -1;
}
}
}
}
return -1;
}
int InternalFindNext(ITextIterator textIterator)
{
while (textIterator.MoveAhead(1))
{
int position = textIterator.Position;
if (Match(textIterator.TextBuffer, position, !SearchOptions.MatchCase, 0))
{
if (!SearchOptions.MatchWholeWord || SearchReplaceUtilities.IsWholeWordAt(textIterator.TextBuffer, position, curMatchEndOffset - position))
{
textIterator.MoveAhead(curMatchEndOffset - position - 1);
return(position);
}
}
}
return(-1);
}
private static bool HasLineTextBeforePosition(ITextIterator tp, int position, out int lineBreakIndex)
{
lineBreakIndex = 0;
for (var i = position - 1; i >= 0; i--)
{
if (tp[i].IsLineBreak())
{
lineBreakIndex = i;
break;
}
if (!char.IsWhiteSpace(tp[i]))
{
return(true);
}
}
return(false);
}
public SearchResult FindNext()
{
// insanity check
Debug.Assert(searchStrategy != null);
Debug.Assert(documentIterator != null);
Debug.Assert(textIteratorBuilder != null);
if (info != null && textIterator != null && documentIterator.CurrentFileName != null)
{
if (info.FileName != documentIterator.CurrentFileName) // create new iterator, if document changed
{
info = documentIterator.Current;
textIterator = textIteratorBuilder.BuildTextIterator(info);
}
else // old document -> initialize iterator position to caret pos
{
textIterator.Position = info.CurrentOffset;
}
SearchResult result = CreateNamedSearchResult(searchStrategy.FindNext(textIterator));
if (result != null)
{
info.CurrentOffset = textIterator.Position;
return(result);
}
}
// not found or first start -> move forward to the next document
if (documentIterator.MoveForward())
{
info = documentIterator.Current;
// document is valid for searching -> set iterator & fileName
if (info != null && info.TextBuffer != null && info.EndOffset >= 0 && info.EndOffset < info.TextBuffer.Length)
{
textIterator = textIteratorBuilder.BuildTextIterator(info);
}
else
{
textIterator = null;
}
return(FindNext());
}
return(null);
}
public SearchResultMatch FindNext(int offset, int length)
{
if (info != null && textIterator != null && documentIterator.CurrentFileName != null)
{
ProvidedDocumentInformation currentInfo = documentIterator.Current;
if (currentInfo != null)
{
if (!info.Equals(currentInfo)) // create new iterator, if document changed
{
info = currentInfo;
textIterator = textIteratorBuilder.BuildTextIterator(info);
}
else // old document -> initialize iterator position to caret pos
{
textIterator.Position = info.CurrentOffset;
}
SearchResultMatch result = CreateNamedSearchResult(searchStrategy.FindNext(textIterator, offset, length));
if (result != null)
{
info.CurrentOffset = textIterator.Position;
return(result);
}
}
}
// not found or first start -> move forward to the next document
if (documentIterator.MoveForward())
{
info = documentIterator.Current;
// document is valid for searching -> set iterator & fileName
if (info != null && info.EndOffset >= 0 && info.EndOffset <= info.Document.TextLength)
{
textIterator = textIteratorBuilder.BuildTextIterator(info);
}
else
{
textIterator = null;
}
return(FindNext(offset, length));
}
return(null);
}
public SearchResultMatch FindNext(ITextIterator textIterator, int offset, int length)
{
string document = textIterator.Document.GetText(0, textIterator.Document.TextLength);
while (textIterator.MoveAhead(1))
{
if (textIterator.Position >= offset + length)
{
textIterator.Position = offset;
}
Match m = regex.Match(document, textIterator.Position);
if (m == null || !m.Success)
{
while (textIterator.Position < document.Length - 1)
{
if (!textIterator.MoveAhead(1))
{
return(null);
}
}
}
else
{
int delta = m.Index - textIterator.Position;
if (delta <= 0 || textIterator.MoveAhead(delta))
{
if (TextSelection.IsInsideRange(m.Index + m.Length - 1, offset, length))
{
return(new RegexSearchResult(m));
}
else
{
return(null);
}
}
else
{
return(null);
}
}
}
return(null);
}
public ISearchResult FindNext(ITextIterator textIterator, SearchOptions options, bool reverseSearch)
{
if (reverseSearch)
throw new NotSupportedException ();
int pos = textIterator.Position;
int offset = InternalFindNext(textIterator, options);
if (offset == -1) return null;
if (textIterator.GetCharRelative (searchPattern.Length) == char.MinValue) {
if (pos != offset)
return FindNext(textIterator, options, false);
else
return null;
}
return new DefaultSearchResult (textIterator, searchPattern.Length);
}
public SearchResult FindNext(ITextIterator textIterator)
{
string document = textIterator.TextBuffer.GetText(0, textIterator.TextBuffer.Length);
while (textIterator.MoveAhead(1)) {
Match m = regex.Match(document, textIterator.Position);
if (m == null || m.Index <= 0 || m.Length <= 0) {
} else {
int delta = m.Index - textIterator.Position;
if (delta <= 0 || textIterator.MoveAhead(delta)) {
return new RegexSearchResult(m);
} else {
return null;
}
}
}
return null;
}
/// <summary>
/// Determines if there is only whitespace and a line break before position
/// </summary>
public static bool IsNewLineBeforePosition(ITextIterator iterator, int position)
{
if (position > 0)
{
for (int i = position - 1; i >= 0; i--)
{
char ch = iterator[i];
if (!Char.IsWhiteSpace(ch))
{
return(false);
}
if (ch.IsLineBreak())
{
return(true);
}
}
}
return(false);
}
public ISearchResult FindNext(ITextIterator textIterator, SearchOptions options, bool reverseSearch)
{
if (reverseSearch)
throw new NotSupportedException ();
if (!textIterator.MoveAhead(1)) return null;
if (regex == null) return null;
int pos = textIterator.Position;
string document = textIterator.ReadToEnd ();
textIterator.Position = pos;
Match m = regex.Match (document, 0);
if (m == null || m.Index <= 0 || m.Length <= 0) {
return null;
} else {
if (textIterator.MoveAhead (m.Index)) {
return new DefaultSearchResult (textIterator, m.Length);
} else {
return null;
}
}
}
public SearchResultMatch FindNext(ITextIterator textIterator)
{
string document = textIterator.Document.Text;
while (textIterator.MoveAhead(1)) {
Match m = regex.Match(document, textIterator.Position);
if (m == null || !m.Success) {
while (textIterator.Position < document.Length - 1) {
if (!textIterator.MoveAhead(1))
return null;
}
} else {
int delta = m.Index - textIterator.Position;
if (delta <= 0 || textIterator.MoveAhead(delta)) {
return new RegexSearchResult(m);
} else {
return null;
}
}
}
return null;
}
/// <summary>
/// Determines number of line breaks after position
/// </summary>
public static int LineBreaksAfterPosition(ITextIterator iterator, int position) {
int count = 0;
for (int i = position; i < iterator.Length; i++) {
char ch = iterator[i];
if (!Char.IsWhiteSpace(ch))
return count;
if (ch == '\r') {
count++;
if (i < iterator.Length - 1 && iterator[i + 1] == '\n') {
i++;
}
} else if (ch == '\n') {
count++;
if (i < iterator.Length - 1 && iterator[i + 1] == '\r') {
i++;
}
}
}
return count;
}
/// <summary>
/// Determines number of line breaks before position
/// </summary>
public static int LineBreaksBeforePosition(ITextIterator iterator, int position)
{
int count = 0;
if (position > 0)
{
for (int i = position - 1; i >= 0; i--)
{
char ch = iterator[i];
if (!Char.IsWhiteSpace(ch))
{
return(count);
}
if (ch == '\r')
{
count++;
if (i > 0 && iterator[i - 1] == '\n')
{
i--;
}
}
else if (ch == '\n')
{
count++;
if (i > 0 && iterator[i - 1] == '\r')
{
i--;
}
}
}
}
return(count);
}
int InternalFindNext(ITextIterator textIterator, SearchOptions options)
{
int j = 0;
if (!textIterator.MoveAhead(1)) {
return -1;
}
while (true) { // until pattern found or Iterator finished
while (j >= 0 && searchPattern[j] != (options.IgnoreCase ? Char.ToUpper(textIterator.GetCharRelative(j)) : textIterator.GetCharRelative(j))) {
if (!textIterator.MoveAhead(j - overlap[j])) {
return -1;
}
j = overlap[j];
}
if (++j >= searchPattern.Length) {
if ((!options.SearchWholeWordOnly || SearchReplaceUtilities.IsWholeWordAt(textIterator, searchPattern.Length))) {
return textIterator.Position;
}
if (!textIterator.MoveAhead(j - overlap[j])) {
return -1;
}
j = overlap[j];
}
}
}
public ISearchResult FindNext(ITextIterator textIterator, SearchOptions options, bool reverseSearch)
{
if (textIterator.SupportsSearch (options, reverseSearch)) {
if (textIterator.SearchNext (searchPattern, options, reverseSearch)) {
DefaultSearchResult sr = new DefaultSearchResult (textIterator, searchPattern.Length);
if (!reverseSearch)
textIterator.MoveAhead (searchPattern.Length);
return sr;
} else
return null;
}
if (reverseSearch)
throw new NotSupportedException ();
int offset = InternalFindNext(textIterator, options);
if (offset >= 0) {
int pos = textIterator.Position;
textIterator.Position = offset;
DefaultSearchResult sr = new DefaultSearchResult (textIterator, searchPattern.Length);
textIterator.Position = pos;
return sr;
} else
return null;
}
public SearchResult FindNext(ITextIterator textIterator)
{
int offset = InternalFindNext(textIterator);
return(GetSearchResult(offset));
}
public void Reset()
{
documentIterator.Reset();
textIterator = null;
}
/// <remarks>
/// The find next method should search the next occurrence of the
/// compiled pattern in the text using the textIterator and options.
/// </remarks>
public SearchResultMatch FindNext(ITextIterator textIterator)
{
int offset = InternalFindNext(textIterator);
return(offset >= 0 ? new SearchResultMatch(offset, searchPattern.Length) : null);
}
public SearchResultMatch FindNext(IProgressMonitor monitor)
{
// insanity check
Debug.Assert(searchStrategy != null);
Debug.Assert(documentIterator != null);
Debug.Assert(textIteratorBuilder != null);
if (monitor != null && monitor.CancellationToken.IsCancellationRequested)
return null;
if (info != null && textIterator != null && documentIterator.CurrentFileName != null) {
ProvidedDocumentInformation currentInfo = documentIterator.Current;
if (currentInfo != null) {
if (!info.Equals(currentInfo)) { // create new iterator, if document changed
info = currentInfo;
textIterator = textIteratorBuilder.BuildTextIterator(info);
} else { // old document -> initialize iterator position to caret pos
textIterator.Position = info.CurrentOffset;
}
SearchResultMatch result = CreateNamedSearchResult(searchStrategy.FindNext(textIterator));
if (result != null) {
info.CurrentOffset = textIterator.Position;
return result;
}
}
}
// not found or first start -> move forward to the next document
if (documentIterator.MoveForward()) {
info = documentIterator.Current;
// document is valid for searching -> set iterator & fileName
if (info != null && info.EndOffset >= 0 && info.EndOffset <= info.Document.TextLength) {
textIterator = textIteratorBuilder.BuildTextIterator(info);
} else {
textIterator = null;
}
return FindNext(monitor);
}
return null;
}
public SearchResultMatch FindNext(int offset, int length)
{
if (info != null && textIterator != null && documentIterator.CurrentFileName != null) {
ProvidedDocumentInformation currentInfo = documentIterator.Current;
if (currentInfo != null) {
if (!info.Equals(currentInfo)) { // create new iterator, if document changed
info = currentInfo;
textIterator = textIteratorBuilder.BuildTextIterator(info);
} else { // old document -> initialize iterator position to caret pos
textIterator.Position = info.CurrentOffset;
}
SearchResultMatch result = CreateNamedSearchResult(searchStrategy.FindNext(textIterator, offset, length));
if (result != null) {
info.CurrentOffset = textIterator.Position;
return result;
}
}
}
// not found or first start -> move forward to the next document
if (documentIterator.MoveForward()) {
info = documentIterator.Current;
// document is valid for searching -> set iterator & fileName
if (info != null && info.EndOffset >= 0 && info.EndOffset < info.Document.TextLength) {
textIterator = textIteratorBuilder.BuildTextIterator(info);
} else {
textIterator = null;
}
return FindNext(offset, length);
}
return null;
}
public bool SupportsReverseSearch(ITextIterator textIterator, SearchOptions options)
{
return false;
}
public SearchResultMatch FindNext(ITextIterator textIterator)
{
int offset = InternalFindNext(textIterator);
return GetSearchResult(offset);
}
int InternalFindNext(ITextIterator textIterator)
{
while (textIterator.MoveAhead(1)) {
int position = textIterator.Position;
if (Match(textIterator.TextBuffer, position, !SearchOptions.MatchCase, 0)) {
if (!SearchOptions.MatchWholeWord || SearchReplaceUtilities.IsWholeWordAt(textIterator.TextBuffer, position, curMatchEndOffset - position)) {
textIterator.MoveAhead(curMatchEndOffset - position - 1);
return position;
}
}
}
return -1;
}
public void Reset()
{
documentIterator.Reset();
textIterator = null;
reverseSearchMap = null;
cancelled = false;
searchedFiles = 0;
matches = 0;
lastResultPos = -1;
}
/// <remarks>
/// The find next method should search the next occurrence of the
/// compiled pattern in the text using the textIterator and options.
/// </remarks>
public SearchResultMatch FindNext(ITextIterator textIterator)
{
int offset = InternalFindNext(textIterator);
return offset >= 0 ? new SearchResultMatch(offset, searchPattern.Length) : null;
}
/// <summary>
/// Determines if there is a whitespace before given position
/// </summary>
public static bool IsWhitespaceBeforePosition(ITextIterator iterator, int position)
{
char charBefore = position > 0 ? iterator[position - 1] : 'x';
return(Char.IsWhiteSpace(charBefore));
}
public void Build(ISearchStrategy strategy, ITextIterator it, SearchOptions options)
{
int startPos = it.Position;
it.Reset ();
ISearchResult res = strategy.FindNext (it, options, false);
while (res != null) {
matches.Add (res);
res = strategy.FindNext (it, options, false);
}
it.Position = startPos;
}
public SearchResult FindNext(ITextIterator textIterator, int offset, int length)
{
int foundOffset = InternalFindNext(textIterator, offset, length);
return(GetSearchResult(foundOffset));
}
public SearchResult FindNext()
{
// insanity check
Debug.Assert(searchStrategy != null);
Debug.Assert(documentIterator != null);
Debug.Assert(textIteratorBuilder != null);
if (info != null && textIterator != null && documentIterator.CurrentFileName != null) {
if (info.FileName != documentIterator.CurrentFileName) { // create new iterator, if document changed
info = documentIterator.Current;
textIterator = textIteratorBuilder.BuildTextIterator(info);
} else { // old document -> initialize iterator position to caret pos
textIterator.Position = info.CurrentOffset;
}
SearchResult result = CreateNamedSearchResult(searchStrategy.FindNext(textIterator));
if (result != null) {
info.CurrentOffset = textIterator.Position;
return result;
}
}
// not found or first start -> move forward to the next document
if (documentIterator.MoveForward()) {
info = documentIterator.Current;
// document is valid for searching -> set iterator & fileName
if (info != null && info.TextBuffer != null && info.EndOffset >= 0 && info.EndOffset < info.TextBuffer.Length) {
textIterator = textIteratorBuilder.BuildTextIterator(info);
} else {
textIterator = null;
}
return FindNext();
}
return null;
}
public ISearchResult Find(SearchOptions options, bool reverse)
{
// insanity check
Debug.Assert(searchStrategy != null);
Debug.Assert(documentIterator != null);
Debug.Assert(options != null);
while (!cancelled)
{
if (info != null && textIterator != null && documentIterator.CurrentFileName != null) {
if (info.FileName != documentIterator.CurrentFileName || lastWasReverse != reverse) {
// create new iterator, if document changed or search direction has changed.
info = documentIterator.Current;
textIterator = info.GetTextIterator ();
reverseSearchMap = null;
lastResultPos = -1;
if (reverse)
textIterator.MoveToEnd ();
}
ISearchResult result;
if (!reverse)
result = searchStrategy.FindNext (textIterator, options, false);
else {
if (searchStrategy.SupportsReverseSearch (textIterator, options)) {
result = searchStrategy.FindNext (textIterator, options, true);
}
else {
if (reverseSearchMap == null) {
reverseSearchMap = new SearchMap ();
reverseSearchMap.Build (searchStrategy, textIterator, options);
}
if (lastResultPos == -1)
lastResultPos = textIterator.Position;
result = reverseSearchMap.GetPreviousMatch (lastResultPos);
if (result != null)
textIterator.Position = result.Position;
}
}
if (result != null) {
matches++;
lastResultPos = result.Position;
lastWasReverse = reverse;
return result;
}
}
if (textIterator != null) textIterator.Close ();
// not found or first start -> move forward to the next document
bool more = !reverse ? documentIterator.MoveForward () : documentIterator.MoveBackward ();
if (more) {
searchedFiles++;
info = documentIterator.Current;
textIterator = info.GetTextIterator ();
reverseSearchMap = null;
lastResultPos = -1;
if (reverse)
textIterator.MoveToEnd ();
}
else
cancelled = true;
lastWasReverse = reverse;
}
cancelled = false;
return null;
}
public void Reset()
{
documentIterator.Reset();
textIterator = null;
}
int InternalFindNext(ITextIterator textIterator, int offset, int length)
{
while (textIterator.MoveAhead(1) && TextSelection.IsInsideRange(textIterator.Position, offset, length)) {
int position = textIterator.Position;
if (Match(textIterator.TextBuffer, position, !SearchOptions.MatchCase, 0)) {
if (!SearchOptions.MatchWholeWord || SearchReplaceUtilities.IsWholeWordAt(textIterator.TextBuffer, position, curMatchEndOffset - position)) {
if (TextSelection.IsInsideRange(curMatchEndOffset - 1, offset, length)) {
textIterator.MoveAhead(curMatchEndOffset - position - 1);
return position;
} else {
return -1;
}
}
}
}
return -1;
}
int InternalFindNext(ITextIterator textIterator)
{
// while (textIterator.MoveAhead(1)) {
// if (SearchOptions.MatchCase ? MatchCaseSensitive(textIterator.TextBuffer, textIterator.Position, searchPattern) : MatchCaseInsensitive(textIterator.TextBuffer, textIterator.Position, searchPattern)) {
// if (!SearchOptions.MatchWholeWord || IsWholeWordAt(textIterator.TextBuffer, textIterator.Position, searchPattern.Length)) {
// return textIterator.Position;
// }
// }
// }
return -1;
}
public SearchResultMatch FindNext(ITextIterator textIterator, int offset, int length)
{
int foundOffset = InternalFindNext(textIterator, offset, length);
return GetSearchResult(foundOffset);
}
/// <summary>
/// Determines if there is a whitespace before given position
/// </summary>
public static bool IsWhitespaceBeforePosition(ITextIterator iterator, int position) {
char charBefore = position > 0 ? iterator[position - 1] : 'x';
return Char.IsWhiteSpace(charBefore);
}