private static string EvalExpression(ExpressionParser parser, TemplateToken token, TemplateParserContext context)
{
char q = token.TokenId == TokenID.ExpressionNew ? '`' : ':';
int quoteIdx = token.Text.LastIndexOf(q);
string expr = quoteIdx >= 0 ? token.Text.Substring(0, quoteIdx).Trim() : token.Text;
IValueWithType result = parser.Evaluate(expr, context, token.TokenPosition);
if (token.TokenType == TemplateTokenType.Statement)
{
return("");
}
if (result.Value is Control)
{
return(context.View.ParseTranslations(((Control)result.Value).Render(context.View)));
}
string fmt = quoteIdx >= 0 ? token.Text.Substring(quoteIdx + 1).Trim() : null;
if (fmt != null)
{
return(String.Format(WebAppConfig.FormatProvider, "{0:" + fmt + "}", result.Value));
}
else if (result.Value is string)
{
return((string)result.Value);
}
else
{
return(result.Value == null ? "" : Convert.ToString(result.Value, WebAppConfig.FormatProvider));
}
}
public object Evaluate(string s, out Type type, IParserContext context, TokenPosition tokenPosition)
{
IValueWithType value = ParseWithContext(s, context, tokenPosition).Evaluate();
type = value.Type;
return(value.Value);
}
public object Evaluate(string s, out Type type)
{
IValueWithType value = ParseWithContext(s).Evaluate();
type = value.Type;
return(value.Value);
}
public void Set(string name, IValueWithType data)
{
Set(name, data.Value, data.Type);
}
public void SetLocal(string name, IValueWithType data)
{
this.SetLocal(name, data.Value, data.Type);
}
