private async void HighlightBrackets(object sender, EventArgs eventArgs)
{
if (TextArea.Caret.Offset < 1)
{
_bracketRenderer.SetHighlight(null);
return;
}
var charBack = Text[TextArea.Caret.Offset - 1];
var charFront = Text.Length > TextArea.Caret.Offset ? Text[TextArea.Caret.Offset] : '\0';
var character = '\0';
var isInFrontOf = false;
if (KeystrokeService.IsBracketOrParen(charBack))
{
character = charBack;
}
else if (KeystrokeService.IsBracketOrParen(charFront))
{
character = charFront;
isInFrontOf = true;
}
if (character != '\0')
{
var openToken = default(TokenKind); //character == '{' ? TokenKind.LCurly : TokenKind.LParen;
var closeToken = default(TokenKind); // character == '}' ? TokenKind.RCurly : TokenKind.RParen;
var startWithClose = false;
if (character == '{' || character == '}')
{
openToken = TokenKind.LCurly;
closeToken = TokenKind.RCurly;
}
else
{
openToken = TokenKind.LParen;
closeToken = TokenKind.RParen;
}
if (character == '}' || character == ')')
{
startWithClose = true;
}
var offset = TextArea.Caret.Offset;
if (!isInFrontOf)
{
offset -= 1;
}
var result = await _languageContext.FindBracketMatch(offset, openToken, closeToken, startWithClose);
if (result == null)
{
_bracketRenderer.SetHighlight(null);
return;
}
_bracketRenderer.SetHighlight(result);
}
else
{
_bracketRenderer.SetHighlight(null);
}
}