protected string FireRuleOnTag(RuleBase ruleToFire, Tag tagToReplace, Namespace data)
{
ruleToFire.TagWillBeReplaced(tagToReplace, data);
tagToReplace.TagWillBeReplaced(tagToReplace, data);
// Recursively generate any content.
Content content = ruleToFire.Fire(tagToReplace, data);
StringBuilder builder = new StringBuilder();
foreach (ContentItem item in content)
{
if (item.IsTag)
{
TagBase tagItem = item as TagBase;
builder.Append(Run(tagItem, data));
}
else
{
builder.Append(item.ToString());
}
}
string result = builder.ToString();
// Filter back through tag and root
result = tagToReplace.TagHasBeenReplaced(result, tagToReplace, data);
result = ruleToFire.TagHasBeenReplaced(result, tagToReplace, data);
return(result);
}
// IReplacementWatcher
// ........................................................................
public override void TagWillBeReplaced(TagBase tag, Namespace data)
{
if (watchers != null)
{
watchers.TagWillBeReplaced(tag, data);
}
}
public void TagWillBeReplaced(TagBase tag, Namespace data)
{
foreach (ITagReplacementWatcher watcher in this)
{
watcher.TagWillBeReplaced(tag, data);
}
}
public override string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
if (replacement.Length <= 0)
{
return(replacement);
}
bool replaceLast = false;
bool addPeriod = true;
switch (replacement[replacement.Length - 1])
{
case ';':
case ':':
case ',':
case '-':
replaceLast = true;
break;
case '?':
case '.':
case '!':
addPeriod = false;
break;
}
return(string.Format("{0}{1}{2}",
replacement[0].ToString().ToUpper(),
replacement.Substring(1, replacement.Length - (replaceLast ? 2 : 1)),
addPeriod ? "." : ""
));
}
public override string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
try {
float number = float.Parse(replacement);
return(GenerateTextFromNumber(number));
} catch (FormatException) {
return(replacement);
}
}
public string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
for (int i = Count - 1; i >= 0; --i)
{
ITagReplacementWatcher watcher = this[i];
replacement = watcher.TagHasBeenReplaced(replacement, tag, data);
}
return(replacement);
}
public override string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
if (watchers != null)
{
return(watchers.TagHasBeenReplaced(replacement, tag, data));
}
else
{
return(replacement);
}
}
public string Run(TagBase tag, Namespace data = null)
{
if (!tag.IsRecursive)
{
return(RunNonRecursiveTag(tag as NonRecursiveTag, data));
}
else
{
Tag tagToReplace = tag as Tag;
MatchingRules matchingRules = FindRulesThatCanFire(tagToReplace, data);
if (matchingRules.Count == 0)
{
return(tagToReplace.ToString());
}
else
{
RuleBase ruleToFire = matchingRules.ChooseRuleToFire(random);
return(FireRuleOnTag(ruleToFire, tagToReplace, data));
}
}
}
// IReplacementWatcher
// ........................................................................
public void TagWillBeReplaced(TagBase tag, Namespace data)
{
if (watchers != null) watchers.TagWillBeReplaced(tag, data);
}
public string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
if (watchers != null) return watchers.TagHasBeenReplaced(replacement, tag, data);
else return replacement;
}
public virtual void TagWillBeReplaced(TagBase tag, Namespace data)
{
Datum valueToSet = (expression != null) ? expression.Evaluate(data) : new NumericDatum(1);
data.Set(dataName, valueToSet);
}
public virtual string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
return(string.Empty);
}
public override string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
data.Set(dataName, (Datum)oldValue);
oldValue = null;
return(replacement);
}
public override void TagWillBeReplaced(TagBase tag, Namespace data)
{
oldValue = data.Get(dataName);
base.TagWillBeReplaced(tag, data);
}
// IReplacementWatcher
// ........................................................................
public abstract void TagWillBeReplaced(TagBase tag, Namespace data);
public virtual void TagWillBeReplaced(TagBase tag, Namespace data)
{
}
public abstract string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data);
public virtual string TagHasBeenReplaced(string replacement, TagBase tag, Namespace data)
{
data.Set(dataName, replacement);
return(replacement);
}
