/// <summary>
/// Get the object, which was inserted under the keyword (line, at offset, with length length),
/// returns null, if no such keyword was inserted.
/// </summary>
public object this[Document.Document document, LineSegment line, int offset, int length]
{
get
{
if (length == 0)
{
return(null);
}
Node next = root;
int wordOffset = line.Offset + offset;
if (casesensitive)
{
for (int i = 0; i < length; ++i)
{
int index = ((int)document.GetCharAt(wordOffset + i)) % 256;
next = next[index];
if (next == null)
{
return(null);
}
if (next.color != null && RegionMatches(document, wordOffset, length, next.word))
{
return(next.color);
}
}
}
else
{
for (int i = 0; i < length; ++i)
{
int index = ((int)Char.ToUpper(document.GetCharAt(wordOffset + i))) % 256;
next = next[index];
if (next == null)
{
return(null);
}
if (next.color != null && RegionMatches(document, casesensitive, wordOffset, length, next.word))
{
return(next.color);
}
}
}
return(null);
}
}
public static bool RegionMatches(Document.Document document, int offset, int length, char[] word)
{
if (length != word.Length || document.TextLength < offset + length)
{
return(false);
}
for (int i = 0; i < length; ++i)
{
if (document.GetCharAt(offset + i) != word[i])
{
return(false);
}
}
return(true);
}
public static bool RegionMatches(Document.Document document, bool casesensitive, int offset, int length, char[] word)
{
if (casesensitive)
{
return(RegionMatches(document, offset, length, word));
}
if (length != word.Length || document.TextLength < offset + length)
{
return(false);
}
for (int i = 0; i < length; ++i)
{
if (Char.ToUpper(document.GetCharAt(offset + i)) != Char.ToUpper(word[i]))
{
return(false);
}
}
return(true);
}
void RemoveTabs(Document.Document document, SelectionManager selmgr, int y1, int y2)
{
document.UndoStack.StartUndoGroup();
for (int i = y2; i >= y1; --i)
{
LineSegment line = document.GetLineSegment(i);
if (i == y2 && line.Offset == selmgr.EndOffset)
{
continue;
}
if (line.Length > 0)
{
/**** TextPad Strategy:
* /// first convert leading whitespace to tabs (controversial! - not all editors work like this)
* string newLine = TextUtilities.LeadingWhiteSpaceToTabs(document.GetText(line.Offset,line.Length),document.Properties.Get("TabIndent", 4));
* if(newLine.Length > 0 && newLine[0] == '\t') {
* document.Replace(line.Offset,line.Length,newLine.Substring(1));
++redocounter;
* }
* else if(newLine.Length > 0 && newLine[0] == ' ') {
* /// there were just some leading spaces but less than TabIndent of them
* int leadingSpaces = 1;
* for(leadingSpaces = 1; leadingSpaces < newLine.Length && newLine[leadingSpaces] == ' '; leadingSpaces++) {
* /// deliberately empty
* }
* document.Replace(line.Offset,line.Length,newLine.Substring(leadingSpaces));
++redocounter;
* }
* /// else
* /// there were no leading tabs or spaces on this line so do nothing
* /// MS Visual Studio 6 strategy:
****/
// string temp = document.GetText(line.Offset,line.Length);
if (line.Length > 0)
{
int charactersToRemove = 0;
if (document.GetCharAt(line.Offset) == '\t') // first character is a tab - just remove it
{
charactersToRemove = 1;
}
else if (document.GetCharAt(line.Offset) == ' ')
{
int leadingSpaces = 1;
int tabIndent = Shared.TEP.IndentationSize;
for (leadingSpaces = 1; leadingSpaces < line.Length && document.GetCharAt(line.Offset + leadingSpaces) == ' '; leadingSpaces++)
{
// deliberately empty
}
if (leadingSpaces >= tabIndent)
{
// just remove tabIndent
charactersToRemove = tabIndent;
}
else if (line.Length > leadingSpaces && document.GetCharAt(line.Offset + leadingSpaces) == '\t')
{
// remove the leading spaces and the following tab as they add up
// to just one tab stop
charactersToRemove = leadingSpaces + 1;
}
else
{
// just remove the leading spaces
charactersToRemove = leadingSpaces;
}
}
if (charactersToRemove > 0)
{
document.Remove(line.Offset, charactersToRemove);
}
}
}
}
document.UndoStack.EndUndoGroup();
}
protected override void Convert(Document.Document document, int y1, int y2)
{
for (int i = y1; i < y2; ++i)
{
LineSegment line = document.GetLineSegment(i);
int removeNumber = 0;
for (int x = line.Offset; x < line.Offset + line.Length && Char.IsWhiteSpace(document.GetCharAt(x)); ++x)
{
++removeNumber;
}
if (removeNumber > 0)
{
document.Remove(line.Offset, removeNumber);
}
}
}
protected override void Convert(Document.Document document, int y1, int y2)
{
for (int i = y2; i >= y1; --i)
{
LineSegment line = document.GetLineSegment(i);
if (line.Length > 0)
{
// count how many whitespace characters there are at the start
int whiteSpace;
for (whiteSpace = 0; whiteSpace < line.Length && char.IsWhiteSpace(document.GetCharAt(line.Offset + whiteSpace)); whiteSpace++)
{
// deliberately empty
}
if (whiteSpace > 0)
{
string newLine = document.GetText(line.Offset, whiteSpace);
string newPrefix = newLine.Replace("\t", new string(' ', Shared.TEP.TabIndent));
document.Replace(line.Offset, whiteSpace, newPrefix);
}
}
}
}
