void CreateSyntaxHighlightInfo(string expression_str, out List <ExpressionTextBox.ColorChangeInfo> color_changes)
{
color_changes = new List <ExpressionTextBox.ColorChangeInfo>();
Tokenizer tokenizer = new Tokenizer(expression_str, true);
ExpressionTextBox.ColorChangeInfo prev_color = new ExpressionTextBox.ColorChangeInfo(0, -1, -1);
ExpressionTextBox.ColorChangeInfo color;
for (; ;)
{
int token_length;
try
{
Token token = tokenizer.GetNextToken();
token_length = token.length;
color.text_index = token.pos;
color.back_color_index = m_ColorInfo.back_color_normal;
switch (token.type)
{
case TokenType.OpNot:
case TokenType.OpUpcase:
case TokenType.OpLocase:
case TokenType.OpLcap:
case TokenType.OpContains:
case TokenType.OpStartsWith:
case TokenType.OpEndsWith:
case TokenType.OpConcat:
case TokenType.OpEquals:
case TokenType.OpNotEquals:
case TokenType.OpRegexMatch:
case TokenType.OpRegexNotMatch:
case TokenType.OpAnd:
case TokenType.OpXor:
case TokenType.OpOr:
case TokenType.Ternary:
color.fore_color_index = m_ColorInfo.color_operator;
break;
case TokenType.String:
color.fore_color_index = m_ColorInfo.color_string_literal;
break;
case TokenType.Variable:
color.fore_color_index = m_ColorInfo.color_const_or_variable;
break;
case TokenType.If:
case TokenType.Else:
color.fore_color_index = m_ColorInfo.color_keyword;
break;
case TokenType.OpenBrace:
case TokenType.CloseBrace:
case TokenType.OpenBracket:
case TokenType.CloseBracket:
color.fore_color_index = m_ColorInfo.color_brackets;
break;
case TokenType.SingleLineComment:
color.fore_color_index = m_ColorInfo.color_comment;
break;
default:
color.fore_color_index = m_ColorInfo.color_default;
break;
case TokenType.EOF:
color.fore_color_index = -1;
break;
}
}
catch (TokenizerException ex)
{
int pos = ex.ErrorPos;
token_length = 1;
color.text_index = pos;
color.fore_color_index = m_ColorInfo.color_bad_token;
color.back_color_index = m_ColorInfo.back_color_error;
tokenizer.ResetAndGoToPosition(pos + 1);
}
// color of space between tokens
if (prev_color.text_index < color.text_index)
{
if (prev_color.back_color_index != m_ColorInfo.back_color_normal)
{
color_changes.Add(new ExpressionTextBox.ColorChangeInfo(prev_color.text_index, -1, m_ColorInfo.back_color_normal));
prev_color.back_color_index = m_ColorInfo.back_color_normal;
}
}
if (prev_color.fore_color_index != color.fore_color_index || prev_color.back_color_index != color.back_color_index)
{
ExpressionTextBox.ColorChangeInfo change;
change.text_index = color.text_index;
change.fore_color_index = prev_color.fore_color_index != color.fore_color_index ? color.fore_color_index : -1;
change.back_color_index = prev_color.back_color_index != color.back_color_index ? color.back_color_index : -1;
color_changes.Add(change);
}
// Check for eof
if (color.fore_color_index < 0)
{
break;
}
prev_color.text_index = color.text_index + token_length;
prev_color.fore_color_index = color.fore_color_index;
prev_color.back_color_index = color.back_color_index;
}
}
void CreateSyntaxHighlightInfo(string expression_str, out List<ExpressionTextBox.ColorChangeInfo> color_changes)
{
color_changes = new List<ExpressionTextBox.ColorChangeInfo>();
Tokenizer tokenizer = new Tokenizer(expression_str, true);
ExpressionTextBox.ColorChangeInfo prev_color = new ExpressionTextBox.ColorChangeInfo(0, -1, -1);
ExpressionTextBox.ColorChangeInfo color;
for (; ; )
{
int token_length;
try
{
Token token = tokenizer.GetNextToken();
token_length = token.length;
color.text_index = token.pos;
color.back_color_index = m_ColorInfo.back_color_normal;
switch (token.type)
{
case TokenType.OpNot:
case TokenType.OpUpcase:
case TokenType.OpLocase:
case TokenType.OpLcap:
case TokenType.OpContains:
case TokenType.OpStartsWith:
case TokenType.OpEndsWith:
case TokenType.OpConcat:
case TokenType.OpEquals:
case TokenType.OpNotEquals:
case TokenType.OpRegexMatch:
case TokenType.OpRegexNotMatch:
case TokenType.OpAnd:
case TokenType.OpXor:
case TokenType.OpOr:
case TokenType.Ternary:
color.fore_color_index = m_ColorInfo.color_operator;
break;
case TokenType.String:
color.fore_color_index = m_ColorInfo.color_string_literal;
break;
case TokenType.Variable:
color.fore_color_index = m_ColorInfo.color_const_or_variable;
break;
case TokenType.If:
case TokenType.Else:
color.fore_color_index = m_ColorInfo.color_keyword;
break;
case TokenType.OpenBrace:
case TokenType.CloseBrace:
case TokenType.OpenBracket:
case TokenType.CloseBracket:
color.fore_color_index = m_ColorInfo.color_brackets;
break;
case TokenType.SingleLineComment:
color.fore_color_index = m_ColorInfo.color_comment;
break;
default:
color.fore_color_index = m_ColorInfo.color_default;
break;
case TokenType.EOF:
color.fore_color_index = -1;
break;
}
}
catch (TokenizerException ex)
{
int pos = ex.ErrorPos;
token_length = 1;
color.text_index = pos;
color.fore_color_index = m_ColorInfo.color_bad_token;
color.back_color_index = m_ColorInfo.back_color_error;
tokenizer.ResetAndGoToPosition(pos + 1);
}
// color of space between tokens
if (prev_color.text_index < color.text_index)
{
if (prev_color.back_color_index != m_ColorInfo.back_color_normal)
{
color_changes.Add(new ExpressionTextBox.ColorChangeInfo(prev_color.text_index, -1, m_ColorInfo.back_color_normal));
prev_color.back_color_index = m_ColorInfo.back_color_normal;
}
}
if (prev_color.fore_color_index != color.fore_color_index || prev_color.back_color_index != color.back_color_index)
{
ExpressionTextBox.ColorChangeInfo change;
change.text_index = color.text_index;
change.fore_color_index = prev_color.fore_color_index != color.fore_color_index ? color.fore_color_index : -1;
change.back_color_index = prev_color.back_color_index != color.back_color_index ? color.back_color_index : -1;
color_changes.Add(change);
}
// Check for eof
if (color.fore_color_index < 0)
break;
prev_color.text_index = color.text_index + token_length;
prev_color.fore_color_index = color.fore_color_index;
prev_color.back_color_index = color.back_color_index;
}
}
