public virtual int ReplaceAll(string withPattern)
{
int result = 0;
using (var undo = textEditorData.OpenUndoGroup()) {
int offset = 0;
if (!SearchRequest.SearchRegion.IsInvalid)
{
offset = SearchRequest.SearchRegion.Offset;
}
SearchResult searchResult;
var text = textEditorData.Text;
var args = new SearchWorkerArguments()
{
Text = text
};
while (true)
{
searchResult = SearchForward(null, args, offset);
if (searchResult == null || searchResult.SearchWrapped)
{
break;
}
Replace(searchResult, withPattern);
offset = searchResult.EndOffset;
result++;
}
if (result > 0)
{
textEditorData.ClearSelection();
}
}
return(result);
}
public override SearchResult SearchBackward(System.ComponentModel.BackgroundWorker worker, SearchWorkerArguments args, int fromOffset)
{
if (regex == null || String.IsNullOrEmpty(searchRequest.SearchPattern))
{
return(null);
}
System.Text.RegularExpressions.Match found = null;
System.Text.RegularExpressions.Match last = null;
foreach (System.Text.RegularExpressions.Match match in regex.Matches(args.Text))
{
if (match.Index < fromOffset)
{
found = match;
}
last = match;
}
bool wrapped = false;
if (found == null)
{
found = last;
wrapped = true;
}
if (found != null)
{
return(new SearchResult(found.Index, found.Length, wrapped));
}
return(null);
}
public override SearchResult SearchForward(System.ComponentModel.BackgroundWorker worker, SearchWorkerArguments args, int fromOffset)
{
if (regex == null || String.IsNullOrEmpty(searchRequest.SearchPattern))
{
return(null);
}
System.Text.RegularExpressions.Match match = regex.Match(args.Text, fromOffset);
if (match.Success)
{
return(new SearchResult(match.Index,
match.Length, false));
}
match = regex.Match(args.Text, 0, fromOffset);
if (match.Success)
{
return(new SearchResult(match.Index,
match.Length, true));
}
return(null);
}
public override int ReplaceAll(string withPattern)
{
var searchResults = new List <SearchResult> ();
int offset = 0;
if (!SearchRequest.SearchRegion.IsInvalid)
{
offset = SearchRequest.SearchRegion.Offset;
}
SearchResult searchResult;
var text = textEditorData.Text;
var args = new SearchWorkerArguments()
{
Text = text
};
while (true)
{
searchResult = SearchForward(null, args, offset);
if (searchResult == null || searchResult.SearchWrapped)
{
break;
}
searchResults.Add(searchResult);
offset = searchResult.EndOffset;
}
if (searchResults.Count < 100)
{
using (var undo = textEditorData.OpenUndoGroup()) {
for (int i = searchResults.Count - 1; i >= 0; i--)
{
Replace(searchResults [i], withPattern);
}
if (searchResults.Count > 0)
{
textEditorData.ClearSelection();
}
}
}
else
{
char[] oldText = text.ToCharArray();
char[] newText = new char[oldText.Length + searchResults.Count * (withPattern.Length - compiledPattern.Length)];
char[] pattern = withPattern.ToCharArray();
int curOffset = 0, destOffset = 0;
foreach (var sr in searchResults)
{
var length = sr.Offset - curOffset;
Array.Copy(oldText, curOffset, newText, destOffset, length);
destOffset += length;
Array.Copy(pattern, 0, newText, destOffset, pattern.Length);
destOffset += withPattern.Length;
curOffset = sr.EndOffset;
}
var l = textEditorData.Length - curOffset;
Array.Copy(oldText, curOffset, newText, destOffset, l);
textEditorData.Replace(0, textEditorData.Length, new string (newText));
textEditorData.ClearSelection();
}
return(searchResults.Count);
}
public override SearchResult SearchBackward(System.ComponentModel.BackgroundWorker worker, SearchWorkerArguments args, int fromOffset)
{
if (!string.IsNullOrEmpty(SearchRequest.SearchPattern))
{
// TODO: Optimize
for (int i = 0; i < args.Text.Length; i++)
{
int offset = (fromOffset + args.Text.Length * 2 - 1 - i) % args.Text.Length;
if (worker != null && worker.CancellationPending)
{
return(null);
}
if (IsMatchAt(offset) && (searchRequest.SearchRegion.IsInvalid || searchRequest.SearchRegion.Contains(offset)))
{
return(new SearchResult(offset, searchRequest.SearchPattern.Length, offset > fromOffset));
}
}
}
return(null);
}
public abstract SearchResult SearchBackward(System.ComponentModel.BackgroundWorker worker, SearchWorkerArguments args, int fromOffset);
