private bool ExtendSelectionToSimilarCharsNearByOLD(MatchCharPredicate isMatch)
{
bool nextMatches = false;
if ((Text.Length - 1) > SelectionStart + SelectionLength)
{
Char nextChar = getCharAfterSelection(); //char after selection
nextMatches = isMatch(nextChar);
}
bool prevMatches = false;
if (SelectionStart - 1 > 0)
{
Char prevChar = getCharBeforeSelection(); //char before selection
prevMatches = isMatch(prevChar);
}
if (!(prevMatches || nextMatches))
{
return(false);
}
txt.DoPaint = false;
try
{ extendSelectionForward(isMatch); }
catch { }
try
{ extendSelectionBackwards(isMatch); }
catch { }
txt.DoPaint = true;
return(true);
}
private void extendSelectionForward(MatchCharPredicate matches)
{
Char nextChar = getCharAfterSelection(); //char after selection
while (matches(nextChar))
{
SelectionLength += 1;
nextChar = getCharAfterSelection(); //char after selection
}
SelectionLength += 1;
if (!matches(SelectedText[SelectionLength - 1]))
{
SelectionLength -= 1;
}
}
private void extendSelectionBackwards(MatchCharPredicate matches)
{
Char prevChar = getCharBeforeSelection(); //char before selection
while (matches(prevChar))
{
extendSelectionOneBack();
prevChar = Text[SelectionStart - 1]; //char after selection
}
extendSelectionOneBack();
if (!matches(SelectedText[0]))
{
SelectionLength -= 1;
SelectionStart += 1;
}
}
private bool ExtendSelectionToSimilarCharsNearByOLD(MatchCharPredicate isMatch)
{
bool nextMatches = false;
if ((Text.Length - 1) > SelectionStart + SelectionLength)
{
Char nextChar = getCharAfterSelection(); //char after selection
nextMatches = isMatch(nextChar);
}
bool prevMatches = false;
if (SelectionStart - 1 > 0)
{
Char prevChar = getCharBeforeSelection(); //char before selection
prevMatches = isMatch(prevChar);
}
if (!(prevMatches || nextMatches))
{
return false;
}
txt.DoPaint = false;
try
{ extendSelectionForward(isMatch); }
catch { }
try
{ extendSelectionBackwards(isMatch); }
catch { }
txt.DoPaint = true;
return true;
}
private void extendSelectionForward(MatchCharPredicate matches)
{
Char nextChar = getCharAfterSelection(); //char after selection
while (matches(nextChar))
{
SelectionLength += 1;
nextChar = getCharAfterSelection(); //char after selection
}
SelectionLength += 1;
if (!matches(SelectedText[SelectionLength - 1]))
{
SelectionLength -= 1;
}
}
private void extendSelectionBackwards(MatchCharPredicate matches)
{
Char prevChar = getCharBeforeSelection(); //char before selection
while (matches(prevChar))
{
extendSelectionOneBack();
prevChar = Text[SelectionStart - 1]; //char after selection
}
extendSelectionOneBack();
if (!matches(SelectedText[0]))
{
SelectionLength -= 1;
SelectionStart += 1;
}
}
