private void SelectMatch(FindingOrder order, TextEditorBase textEditor, MatchCollection sectionMatchCollection)
{
switch (order)
{
case FindingOrder.Prev:
{
// Get the last match of that section, since we're going upwards
Match lastMatch = sectionMatchCollection[sectionMatchCollection.Count - 1];
textEditor.Select(lastMatch.Index, lastMatch.Length); // Select the match
break;
}
case FindingOrder.Next:
{
// Get the first match of that section, since we're going downwards
Match firstMatch = sectionMatchCollection[0];
int selectionEnd = textEditor.SelectionStart + textEditor.SelectionLength;
string textAfterSelection = GetTextAfterSelection(textEditor.Text, selectionEnd);
int cutStringLength = textEditor.Document.TextLength - textAfterSelection.Length;
textEditor.Select(cutStringLength + firstMatch.Index, firstMatch.Length); // Select the match
break;
}
}
textEditor.ScrollTo(textEditor.TextArea.Caret.Position.Line, textEditor.TextArea.Caret.Position.Column);
}
private bool Find(FindingOrder order)
{
if (string.IsNullOrWhiteSpace(textBox_Find.Text))
{
ShowError("Invalid input.");
return(false);
}
TextEditorBase currentTabTextEditor = GetTextEditorOfTab(_editorTabControl.SelectedTab);
string pattern = GetCurrentPattern();
RegexOptions options = GetCurrentRegexOptions();
if (Regex.Matches(currentTabTextEditor.Text, pattern, options).Count == 0) // If no matches were found in the current document
{
if (radioButton_Current.Checked)
{
ShowError("No matches found in the current document."); // Search cancelled
}
else if (radioButton_AllTabs.Checked)
{
FindMatchInAnotherTab(order, pattern, options);
}
}
else // Matches were found in the current document
{
return(FindMatch(order, currentTabTextEditor, pattern, options));
}
return(false);
}
private bool FindMatch(FindingOrder order, TextEditorBase textEditor, string pattern, RegexOptions options)
{
MatchCollection sectionMatchCollection = GetMatchCollectionFromSection(order, textEditor, pattern, options);
if (sectionMatchCollection.Count == 0) // If no matches were found in that section of the document
{
if (radioButton_Current.Checked)
{
EndSuccessfulSearch(order, textEditor);
}
else if (radioButton_AllTabs.Checked)
{
FindMatchInAnotherTab(order, pattern, options);
}
}
else // Matches were found in that section of the document
{
SelectMatch(order, textEditor, sectionMatchCollection);
UpdateStatusLabel(textEditor.Text, pattern, options);
return(true);
}
return(false);
}
private bool Replace(FindingOrder order)
{
if (!Find(order))
{
return(false);
}
ReplaceMatch();
return(true);
}
private void EndSuccessfulSearch(FindingOrder order, TextEditorBase textEditor)
{
switch (order)
{
case FindingOrder.Prev:
MoveCaretToDocumentStart(textEditor);
ShowWarning("Reached the start of the document with no more matches found."); // Search ends here
break;
case FindingOrder.Next:
MoveCaretToDocumentEnd(textEditor);
ShowWarning("Reached the end of the document with no more matches found."); // Search ends here
break;
}
}
private MatchCollection GetMatchCollectionFromSection(FindingOrder order, TextEditorBase textEditor, string pattern, RegexOptions options)
{
switch (order)
{
case FindingOrder.Prev:
string textBeforeSelection = GetTextBeforeSelection(textEditor.Text, textEditor.SelectionStart);
return(Regex.Matches(textBeforeSelection, pattern, options));
case FindingOrder.Next:
int selectionEnd = textEditor.SelectionStart + textEditor.SelectionLength;
string textAfterSelection = GetTextAfterSelection(textEditor.Text, selectionEnd);
return(Regex.Matches(textAfterSelection, pattern, options));
}
return(null);
}
private void FindMatchInAnotherTab(FindingOrder order, string pattern, RegexOptions options)
{
if (GetAllTabsMatchCount(pattern, options) == 0) // If no matches were found in any tab
{
ShowError("No matches found."); // Search cancelled
}
else
{
switch (order)
{
case FindingOrder.Prev:
FindPrevInPrevTab(); // Go to the previous tab to find matches there
break;
case FindingOrder.Next:
FindNextInNextTab(); // Go to the next tab to find matches there
break;
}
}
}
