/// <summary>
/// Evaluates the each loop
/// </summary>
/// <param name="context">The context that contains information about the document being rendered</param>
/// <returns>The rendered contents of the each loop</returns>
public ConsoleString Evaluate(DocumentRendererContext context)
{
var collection = context.EvaluateExpression(this.CollectionVariableExpressionToken.Value);
if (collection == null)
{
throw new DocumentRenderException("'" + this.CollectionVariableExpressionToken.Value + "' resolved to a null reference", this.CollectionVariableExpressionToken);
}
if (collection is IEnumerable == false)
{
throw new DocumentRenderException("'" + this.CollectionVariableExpressionToken.Value + "' does not resolve to a collection", this.CollectionVariableExpressionToken);
}
ConsoleString ret = ConsoleString.Empty;
int index = 0;
var iterationVariableName = this.IterationVariableNameToken.Value + "-index";
foreach (var item in (IEnumerable)collection)
{
context.LocalVariables.Add(this.IterationVariableNameToken, item);
context.LocalVariables.Force(iterationVariableName, index);
ret += context.RenderBody(this.Body);
context.LocalVariables.Remove(this.IterationVariableNameToken);
context.LocalVariables.ForceClear(iterationVariableName);
index++;
}
return(ret);
}
/// <summary>
/// Evaluates the each loop
/// </summary>
/// <param name="context">The context that contains information about the document being rendered</param>
/// <returns>The rendered contents of the each loop</returns>
public ConsoleString Evaluate(DocumentRendererContext context)
{
var collection = context.EvaluateExpression(this.CollectionVariableExpressionToken.Value);
if (collection == null)
{
throw new DocumentRenderException("'" + this.CollectionVariableExpressionToken.Value + "' resolved to a null reference", this.CollectionVariableExpressionToken);
}
if(collection is IEnumerable == false)
{
throw new DocumentRenderException("'" + this.CollectionVariableExpressionToken.Value + "' does not resolve to a collection", this.CollectionVariableExpressionToken);
}
ConsoleString ret = ConsoleString.Empty;
int index = 0;
var iterationVariableName = this.IterationVariableNameToken.Value + "-index";
foreach(var item in (IEnumerable)collection)
{
context.LocalVariables.Add(this.IterationVariableNameToken, item);
context.LocalVariables.Force(iterationVariableName, index);
ret+= context.RenderBody(this.Body);
context.LocalVariables.Remove(this.IterationVariableNameToken);
context.LocalVariables.ForceClear(iterationVariableName);
index++;
}
return ret;
}
/// <summary>
/// Evaluates the conditional expression against the given data context, rendering the body only if it is true.
/// </summary>
/// <param name="context">The data context to use when evaluating the conditional expression</param>
/// <returns>The rendered body if the conditional was true, an empty string otherwise</returns>
public virtual ConsoleString Evaluate(DocumentRendererContext context)
{
var eval = context.EvaluateExpression(this.IfExpressionToken.Value);
if(true.Equals(eval) || 1.Equals(eval))
{
return context.RenderBody(this.Body);
}
else
{
return ConsoleString.Empty;
}
}
/// <summary>
/// Evaluates the conditional expression against the given data context, rendering the body only if it is false.
/// </summary>
/// <param name="context">The data context to use when evaluating the conditional expression</param>
/// <returns>The rendered body if the conditional was false, an empty string otherwise</returns>
public override ConsoleString Evaluate(DocumentRendererContext context)
{
var eval = context.EvaluateExpression(this.IfExpressionToken.Value);
if (false.Equals(eval) == true || 0.Equals(eval))
{
return(context.RenderBody(this.Body));
}
else
{
return(ConsoleString.Empty);
}
}
/// <summary>
/// Evaluates the conditional expression against the given data context, rendering the body only if it is true.
/// </summary>
/// <param name="context">The data context to use when evaluating the conditional expression</param>
/// <returns>The rendered body if the conditional was true, an empty string otherwise</returns>
public virtual ConsoleString Evaluate(DocumentRendererContext context)
{
var eval = context.EvaluateExpression(this.IfExpressionToken.Value);
if (true.Equals(eval) || 1.Equals(eval))
{
return(context.RenderBody(this.Body));
}
else
{
return(ConsoleString.Empty);
}
}
/// <summary>
/// Evaluates the conditional expression against the given data context, rendering the body only if it is false.
/// </summary>
/// <param name="context">The data context to use when evaluating the conditional expression</param>
/// <returns>The rendered body if the conditional was false, an empty string otherwise</returns>
public override ConsoleString Evaluate(DocumentRendererContext context)
{
var eval = context.EvaluateExpression(this.IfExpressionToken.Value);
if (false.Equals(eval) == true || 0.Equals(eval))
{
return context.RenderBody(this.Body);
}
else
{
return ConsoleString.Empty;
}
}