private JSGFGrammar.GrammarGraph processRuleSequence(JSGFRuleSequence jsgfruleSequence)
{
GrammarNode grammarNode = null;
GrammarNode grammarNode2 = null;
this.logger.fine(new StringBuilder().append("parseRuleSequence: ").append(jsgfruleSequence).toString());
List rules = jsgfruleSequence.getRules();
GrammarNode grammarNode3 = null;
for (int i = 0; i < rules.size(); i++)
{
JSGFRule rule = (JSGFRule)rules.get(i);
JSGFGrammar.GrammarGraph grammarGraph = this.processRule(rule);
if (i == 0)
{
grammarNode = grammarGraph.getStartNode();
}
if (i == rules.size() - 1)
{
grammarNode2 = grammarGraph.getEndNode();
}
if (i > 0)
{
grammarNode3.add(grammarGraph.getStartNode(), 0f);
}
grammarNode3 = grammarGraph.getEndNode();
}
return(new JSGFGrammar.GrammarGraph(this, grammarNode, grammarNode2));
}
private void addToCurrent(JSGFRule jsgfrule, JSGFRule rule)
{
if (jsgfrule == null)
{
return;
}
if (this.currentRule == null)
{
this.currentRule = jsgfrule;
return;
}
if (this.currentRule is JSGFRuleSequence)
{
JSGFRuleSequence jsgfruleSequence = (JSGFRuleSequence)this.currentRule;
jsgfruleSequence.append(rule);
jsgfrule.parent = this.currentRule;
this.currentRule = jsgfrule;
}
else if (this.currentRule is JSGFRuleAlternatives)
{
JSGFRuleAlternatives jsgfruleAlternatives = (JSGFRuleAlternatives)this.currentRule;
jsgfruleAlternatives.append(rule);
jsgfrule.parent = this.currentRule;
this.currentRule = jsgfrule;
}
}
private void AddToCurrent(JSGFRule newRule, JSGFRule topRule)
{
if (newRule == null)
{
return;
}
if (_currentRule == null)
{
_currentRule = newRule;
return;
}
if (_currentRule is JSGFRuleSequence)
{
JSGFRuleSequence ruleSequence = (JSGFRuleSequence)_currentRule;
ruleSequence.Append(topRule);
newRule.Parent = _currentRule;
_currentRule = newRule;
}
else if (_currentRule is JSGFRuleAlternatives)
{
JSGFRuleAlternatives ruleAlternatives = (JSGFRuleAlternatives)_currentRule;
ruleAlternatives.Append(topRule);
newRule.Parent = _currentRule;
_currentRule = newRule;
}
}
/**
* Parses the given RuleSequence into a network of GrammarNodes.
*
* @param ruleSequence
* the RuleSequence to parse
* @return the first and last GrammarNodes of the network
*/
private GrammarGraph ProcessRuleSequence(JSGFRuleSequence ruleSequence)
{
GrammarNode startNode = null;
GrammarNode endNode = null;
this.LogInfo("parseRuleSequence: " + ruleSequence);
List <JSGFRule> rules = ruleSequence.Rules;
GrammarNode lastGrammarNode = null;
// expand and connect each rule in the sequence serially
for (int i = 0; i < rules.Count; i++)
{
JSGFRule rule = rules[i];
GrammarGraph newNodes = ProcessRule(rule);
// first node
if (i == 0)
{
startNode = newNodes.StartNode;
}
// last node
if (i == (rules.Count - 1))
{
endNode = newNodes.EndNode;
}
if (i > 0)
{
lastGrammarNode.Add(newNodes.StartNode, 0.0f);
}
lastGrammarNode = newNodes.EndNode;
}
return(new GrammarGraph(startNode, endNode, this));
}
public override void startElement(string uri, string localName, string qName, Attributes attributes)
{
JSGFRule jsgfrule = null;
JSGFRule jsgfrule2 = null;
this.logger.fine(new StringBuilder().append("Starting element ").append(qName).toString());
if (String.instancehelper_equals(qName, "rule"))
{
string value = attributes.getValue("id");
if (value != null)
{
jsgfrule = new JSGFRuleSequence(new ArrayList());
this.__topRuleMap.put(value, (JSGFRuleSequence)jsgfrule);
jsgfrule2 = (JSGFRuleSequence)jsgfrule;
}
}
if (String.instancehelper_equals(qName, "item"))
{
string value = attributes.getValue("repeat");
if (value != null)
{
jsgfrule = new JSGFRuleSequence(new ArrayList());
JSGFRuleCount jsgfruleCount = new JSGFRuleCount((JSGFRuleSequence)jsgfrule, 3);
jsgfrule2 = jsgfruleCount;
}
else
{
jsgfrule = new JSGFRuleSequence(new ArrayList());
jsgfrule2 = (JSGFRuleSequence)jsgfrule;
}
}
if (String.instancehelper_equals(qName, "one-of"))
{
jsgfrule = new JSGFRuleAlternatives(new ArrayList());
jsgfrule2 = (JSGFRuleAlternatives)jsgfrule;
}
this.addToCurrent(jsgfrule, jsgfrule2);
}
public override void StartElement(URL uri, string localName, string qName, Attributes attributes)
{
JSGFRule newRule = null;
JSGFRule topRule = null;
this.LogInfo("Starting element " + qName);
if (qName.Equals("rule"))
{
String id = attributes.getValue("id");
if (id != null)
{
newRule = new JSGFRuleSequence(new List <JSGFRule>());
TopRuleMap.Put(id, newRule);
topRule = newRule;
}
}
if (qName.Equals("item"))
{
String repeat = attributes.getValue("repeat");
if (repeat != null)
{
newRule = new JSGFRuleSequence(new List <JSGFRule>());
JSGFRuleCount ruleCount = new JSGFRuleCount(newRule, JSGFRuleCount.OnceOrMore);
topRule = ruleCount;
}
else
{
newRule = new JSGFRuleSequence(new List <JSGFRule>());
topRule = newRule;
}
}
if (qName.Equals("one-of"))
{
newRule = new JSGFRuleAlternatives(new List <JSGFRule>());
topRule = newRule;
}
AddToCurrent(newRule, topRule);
}
