public static string GetStringByExpression(this SenseNetResourceManager resourceManager, string expression)
{
if (string.IsNullOrEmpty(expression))
{
return(expression);
}
if (!expression.StartsWith(SenseNetResourceManager.ResourceStartKey) ||
!expression.EndsWith(SenseNetResourceManager.ResourceEndKey))
{
return(null);
}
expression = expression.Replace(" ", "");
expression = expression.Replace(SenseNetResourceManager.ResourceStartKey, "");
expression = expression.Replace(SenseNetResourceManager.ResourceEndKey, "");
if (expression.Contains("Resources:"))
{
expression = expression.Remove(expression.IndexOf("Resources:", StringComparison.Ordinal), 10);
}
var expressionFields = ResourceExpressionBuilder.ParseExpression(expression);
if (expressionFields == null)
{
var context = HttpContext.Current;
var msg = $"{expression} is not a valid string resource format.";
if (context == null)
{
throw new ApplicationException(msg);
}
return(string.Format(msg));
}
return(resourceManager.GetString(expressionFields.ClassKey, expressionFields.ResourceKey));
}
