/// <summary>
/// Parse the initial text as a Text Expression Tree then apply the given transformation
/// to get the final text
/// </summary>
/// <param name="transConverter"></param>
public void TransformUsing(ITextExpressionVisitor <string> transConverter)
{
ITextExpression textExpr;
InitialText.TryParseToTextExpression(out textExpr);
FinalText = ReferenceEquals(textExpr, null) ? String.Empty : transConverter.Visit(textExpr);
IsFixed = (FinalText == InitialText);
}
/// <summary>
/// Generate text inside slot tags of the region template using the tag string that
/// contains a text expression that is interpreted using the given text expression visitor.
/// </summary>
/// <param name="transFunc"></param>
/// <returns></returns>
public string GenerateText(ITextExpressionVisitor <string> transFunc)
{
var slotTagsList = Template.SlotRegions.SelectMany(r => r.SlotTags);
foreach (var slotTag in slotTagsList)
{
ITextExpression expr;
var result = slotTag.TagString.TryParseToTextExpression(out expr);
slotTag.SetGeneratedText(
string.IsNullOrEmpty(result)
? transFunc.Visit(expr) : result
);
}
return(Template.GetText());
}
/// <summary>
/// Apply the given mapping to the segments list
/// </summary>
/// <param name="segments"></param>
/// <param name="transConverter"></param>
public static void TransformUsing(this IEnumerable <MappingComposerSegment> segments, ITextExpressionVisitor <string> transConverter)
{
foreach (var segment in segments)
{
segment.TransformUsing(transConverter);
}
}