/// <summary>
/// Parses the specified message text.
/// </summary>
/// <param name="target">The target.</param>
/// <param name="text">The message text.</param>
/// <returns>The triggers parsed from the text.</returns>
public static IEnumerable <TriggerBase> Parse(DependencyObject target, string text)
{
if (string.IsNullOrEmpty(text))
{
return(new TriggerBase[0]);
}
var triggers = new List <TriggerBase>();
var messageTexts = StringSplitter.Split(text, ';');
foreach (var messageText in messageTexts)
{
var triggerPlusMessage = LongFormatRegularExpression.IsMatch(messageText)
? StringSplitter.Split(messageText, '=')
: new[] { null, messageText };
var messageDetail = triggerPlusMessage.Last()
.Replace("[", string.Empty)
.Replace("]", string.Empty)
.Trim();
var trigger = CreateTrigger(target, triggerPlusMessage.Length == 1 ? null : triggerPlusMessage[0]);
var message = CreateMessage(target, messageDetail);
#if WINDOWS_UWP || XFORMS
AddActionToTrigger(target, message, trigger);
#else
trigger.Actions.Add(message);
#endif
triggers.Add(trigger);
}
return(triggers);
}
/// <summary>
/// Creates an instance of <see cref="ActionMessage"/> by parsing out the textual dsl.
/// </summary>
/// <param name="target">The target of the message.</param>
/// <param name="messageText">The textual message dsl.</param>
/// <returns>The created message.</returns>
public static TriggerAction CreateMessage(DependencyObject target, string messageText)
{
var openingParenthesisIndex = messageText.IndexOf('(');
if (openingParenthesisIndex < 0)
{
openingParenthesisIndex = messageText.Length;
}
var closingParenthesisIndex = messageText.LastIndexOf(')');
if (closingParenthesisIndex < 0)
{
closingParenthesisIndex = messageText.Length;
}
var core = messageText.Substring(0, openingParenthesisIndex).Trim();
var message = InterpretMessageText(target, core);
var withParameters = message as IHaveParameters;
if (withParameters != null)
{
if (closingParenthesisIndex - openingParenthesisIndex > 1)
{
var paramString = messageText.Substring(openingParenthesisIndex + 1, closingParenthesisIndex - openingParenthesisIndex - 1);
var parameters = StringSplitter.SplitParameters(paramString);
foreach (var parameter in parameters)
{
withParameters.Parameters.Add(CreateParameter(target, parameter.Trim()));
}
}
}
return(message);
}
