private string PerformEnumerableExpansionReplacement(string input, object model)
{
//Replace variables
var replacedInput = EnumerableExpansionRegex.Replace(input, m =>
{
var properties = ModelReflectionUtil.GetCaptureGroupValues(m, "ParameterName");
var propertyVal = ModelReflectionUtil.GetPropertyValueFromParameterCollection(model, properties);
if (!propertyVal.Item1) //Enumerable doesn't exist
{
return(string.Empty);
}
var enumerable = propertyVal.Item2 as IEnumerable;
if (enumerable == null) //The object wasn't an enumerable
{
return(SubstitutionErrorString);
}
var expandedEnumerableBody = new StringBuilder();
var enumerableContent = m.Groups["Contents"].Value;
var enumerableItemRegex = new Regex(@"{\$element}", RegexOptions.Compiled);
foreach (var item in enumerable)
{
var replacedContent = enumerableItemRegex.Replace(enumerableContent, item.ToString());
expandedEnumerableBody.AppendLine(replacedContent);
}
var expandedEnumerableStr = expandedEnumerableBody.ToString();
return(expandedEnumerableStr);
});
return(replacedInput);
}
private string PerformConditionalSubstitutions(string input, object model)
{
//Process conditionals
var replacedInput = ConditionalRegex.Replace(input, m =>
{
var properties = ModelReflectionUtil.GetCaptureGroupValues(m, "ParameterName");
var propertyVal = ModelReflectionUtil.GetPropertyValueFromParameterCollection(model, properties);
var allowNonexistent = m.Groups["AllowNonexistent"].Success;
var negateResult = m.Groups["Not"].Success;
bool propertyExists = propertyVal.Item1;
//If the property doesnt exist and nonexistent is not allowed, error
if (!propertyExists && !allowNonexistent)
{
return(SubstitutionErrorString);
}
//Check if the property isn't null
bool evaluateResult = propertyVal.Item2 != null;
//Check if property result is a BOOLEAN
if (evaluateResult && propertyVal.Item2 is bool?) //if the property isn't null, and if it's a boolean
{
//Get the actual boolean value
var booleanPropertyResult = propertyVal.Item2 as bool?;
evaluateResult = (bool)booleanPropertyResult;
}
if (negateResult) //A NOT is present
{
evaluateResult = !evaluateResult; //negate
}
var conditionalContent = m.Groups["Contents"].Value;
if (evaluateResult)
{
return(conditionalContent);
}
return(string.Empty);
});
return(replacedInput);
}
private string PerformSingleSubstitutions(string input, object model)
{
//Replace variables
var replacedInput = SingleVariableSubstitutionRegex.Replace(input, m =>
{
var properties = ModelReflectionUtil.GetCaptureGroupValues(m, "ParameterName");
var substitution = ModelReflectionUtil.GetPropertyValueFromParameterCollection(model, properties);
if (!substitution.Item1)
{
return(SubstitutionErrorString);
}
if (substitution.Item2 == null)
{
return(string.Empty);
}
return(m.Groups["Encode"].Success ? XmlEncode(substitution.Item2.ToString()) : substitution.Item2.ToString());
});
return(replacedInput);
}