/// <summary>
/// Applies the rule to the specified word synthesis.
/// </summary>
/// <param name="input">The word synthesis.</param>
public override void Apply(WordSynthesis input)
{
PhonologicalRuleSynthesisTrace trace = null;
if (TraceSynthesis)
{
// create phonological rule synthesis trace record
trace = new PhonologicalRuleSynthesisTrace(this, input.Clone());
input.CurrentTrace.AddChild(trace);
}
// only try to apply applicable subrules
List <Subrule> subrules = new List <Subrule>();
foreach (Subrule sr in m_subrules)
{
if (sr.IsApplicable(input))
{
subrules.Add(sr);
}
}
if (subrules.Count > 0)
{
// set all segments to clean
PhoneticShape pshape = input.Shape;
foreach (PhoneticShapeNode node in pshape)
{
if (node.Type == PhoneticShapeNode.NodeType.SEGMENT)
{
(node as Segment).IsClean = true;
}
}
switch (m_multApplication)
{
case MultAppOrder.SIMULTANEOUS:
ApplySimultaneous(input.Shape, subrules);
break;
case MultAppOrder.LR_ITERATIVE:
ApplyIterative(input.Shape, Direction.RIGHT, subrules);
break;
case MultAppOrder.RL_ITERATIVE:
ApplyIterative(input.Shape, Direction.LEFT, subrules);
break;
}
}
// add output to phonological rule trace record
if (trace != null)
{
trace.Output = input.Clone();
}
}
/// <summary>
/// Applies this subrule to the specified word synthesis.
/// </summary>
/// <param name="input">The input word synthesis.</param>
/// <param name="output">The output word synthesis.</param>
/// <returns><c>true</c> if the subrule was successfully applied, otherwise <c>false</c></returns>
public bool Apply(WordSynthesis input, out WordSynthesis output)
{
output = null;
// check MPR features
if ((m_requiredMPRFeatures != null && m_requiredMPRFeatures.Count > 0 && !m_requiredMPRFeatures.IsMatch(input.MPRFeatures)) ||
(m_excludedMPRFeatures != null && m_excludedMPRFeatures.Count > 0 && m_excludedMPRFeatures.IsMatch(input.MPRFeatures)))
{
return(false);
}
VariableValues instantiatedVars = new VariableValues(m_alphaVars);
IList <Match> headMatches, nonHeadMatches;
if (m_headLhsTemp.IsMatch(input.Shape.First, Direction.RIGHT, ModeType.SYNTHESIS, instantiatedVars, out headMatches) &&
m_nonHeadLhsTemp.IsMatch(input.NonHead.Shape.First, Direction.RIGHT, ModeType.SYNTHESIS, instantiatedVars, out nonHeadMatches))
{
output = input.Clone();
ApplyRHS(headMatches[0], nonHeadMatches[0], input, output);
if (m_outputMPRFeatures != null)
{
output.MPRFeatures.AddOutput(m_outputMPRFeatures);
}
return(true);
}
return(false);
}
/// <summary>
/// Applies all of the rules to the specified word synthesis.
/// </summary>
/// <param name="input">The input word synthesis.</param>
/// <returns>All word synthesis records that result from the application of rules.</returns>
public IEnumerable <WordSynthesis> Apply(WordSynthesis input)
{
if (m_isCyclic)
{
throw new NotImplementedException(HCStrings.kstidCyclicStratumNotSupported);
}
if (m_pruleOrder == PRuleOrder.SIMULTANEOUS)
{
throw new NotImplementedException(HCStrings.kstidSimultOrderNotSupported);
}
// TODO: handle cyclicity
Set <WordSynthesis> output = new Set <WordSynthesis>();
ApplyMorphologicalRules(input.Clone(), 0, output);
foreach (WordSynthesis cur in output)
{
ApplyPhonologicalRules(cur);
}
return(output);
}
void ApplySlots(WordSynthesis input, int sIndex, FeatureValues origHeadFeatures, Set <WordSynthesis> output)
{
for (int i = sIndex; i < m_slots.Count; i++)
{
foreach (MorphologicalRule rule in m_slots[i].MorphologicalRules)
{
if (rule.IsApplicable(input))
{
// this is the slot affix that realizes the features
ICollection <WordSynthesis> syntheses;
if (rule.ApplySlotAffix(input, origHeadFeatures, out syntheses))
{
foreach (WordSynthesis ws in syntheses)
{
ApplySlots(ws, i + 1, origHeadFeatures, output);
}
}
}
}
if (!m_slots[i].IsOptional)
{
if (Morpher.TraceTemplatesSynthesis)
{
input.CurrentTrace.AddChild(new TemplateSynthesisTrace(this, false, null));
}
return;
}
}
if (Morpher.TraceTemplatesSynthesis)
{
input.CurrentTrace.AddChild(new TemplateSynthesisTrace(this, false, input.Clone()));
}
output.Add(input);
}
/// <summary>
/// Applies this affix template to the specified input word synthesis.
/// </summary>
/// <param name="input">The input word synthesis.</param>
/// <param name="output">The output word synthesis.</param>
/// <returns><c>true</c> if the affix template applied, otherwise <c>false</c>.</returns>
public bool Apply(WordSynthesis input, out IEnumerable <WordSynthesis> output)
{
FeatureValues headFeatures = input.HeadFeatures.Clone();
Set <WordSynthesis> results = new Set <WordSynthesis>();
if (Morpher.TraceTemplatesSynthesis)
{
// create the template synthesis input trace record
TemplateSynthesisTrace tempTrace = new TemplateSynthesisTrace(this, true, input.Clone());
input.CurrentTrace.AddChild(tempTrace);
}
ApplySlots(input.Clone(), 0, headFeatures, results);
if (results.Count > 0)
{
output = results;
return(true);
}
else
{
output = null;
return(false);
}
}
/// <summary>
/// Applies the rule to the specified word analysis.
/// </summary>
/// <param name="input">The input word synthesis.</param>
/// <param name="output">The output word syntheses.</param>
/// <returns>
/// <c>true</c> if the rule was successfully applied, otherwise <c>false</c>
/// </returns>
public override bool Apply(WordSynthesis input, out ICollection <WordSynthesis> output)
{
output = null;
// these should probably be moved to IsApplicable, but we will leave it here for
// now so we don't have to call it again to set the features for the output word
// synthesis record
// check head features
FeatureValues headHeadFeatures;
if (!m_headRequiredHeadFeatures.UnifyDefaults(input.HeadFeatures, out headHeadFeatures))
{
return(false);
}
FeatureValues nonHeadHeadFeatures;
if (!m_nonHeadRequiredHeadFeatures.UnifyDefaults(input.NonHead.HeadFeatures, out nonHeadHeadFeatures))
{
return(false);
}
// check foot features
FeatureValues headFootFeatures;
if (!m_headRequiredFootFeatures.UnifyDefaults(input.FootFeatures, out headFootFeatures))
{
return(false);
}
FeatureValues nonHeadFootFeatures;
if (!m_nonHeadRequiredFootFeatures.UnifyDefaults(input.NonHead.FootFeatures, out nonHeadFootFeatures))
{
return(false);
}
MorphologicalRuleSynthesisTrace trace = null;
if (TraceSynthesis)
{
// create morphological rule synthesis trace record
trace = new MorphologicalRuleSynthesisTrace(this, input.Clone());
input.CurrentTrace.AddChild(trace);
}
output = new List <WordSynthesis>();
foreach (Subrule sr in m_subrules)
{
WordSynthesis ws;
if (sr.Apply(input, out ws))
{
if (m_outPOS != null)
{
ws.POS = m_outPOS;
}
if (m_outHeadFeatures != null)
{
ws.HeadFeatures = m_outHeadFeatures.Clone();
}
ws.HeadFeatures.Add(headHeadFeatures);
if (m_outFootFeatures != null)
{
ws.FootFeatures = m_outFootFeatures.Clone();
}
ws.FootFeatures.Add(headFootFeatures);
if (m_obligHeadFeatures != null)
{
foreach (Feature feature in m_obligHeadFeatures)
{
ws.AddObligatoryHeadFeature(feature);
}
}
ws.MorphologicalRuleApplied(this);
ws = CheckBlocking(ws);
if (trace != null)
{
// set current trace record to the morphological rule trace record for each
// output analysis
ws.CurrentTrace = trace;
// add output to morphological rule trace record
trace.RuleAllomorph = sr;
trace.Output = ws.Clone();
}
output.Add(ws);
// return all word syntheses that match subrules that are constrained by environments,
// HC violates the disjunctive property of allomorphs here because it cannot check the
// environmental constraints until it has a surface form, we will enforce the disjunctive
// property of allomorphs at that time
if (sr.RequiredEnvironments == null && sr.ExcludedEnvironments == null)
{
break;
}
}
}
return(output.Count > 0);
}
/// <summary>
/// Applies the rule to the specified word synthesis.
/// </summary>
/// <param name="input">The input word synthesis.</param>
/// <param name="output">The output word syntheses.</param>
/// <returns>
/// <c>true</c> if the rule was successfully applied, otherwise <c>false</c>
/// </returns>
public override bool Apply(WordSynthesis input, out ICollection <WordSynthesis> output)
{
output = null;
// these should probably be moved to IsApplicable, but we will leave it here for
// now so we don't have to call it again to set the features for the output word
// synthesis record
// check head features
FeatureValues headFeatures;
if (!m_requiredHeadFeatures.UnifyDefaults(input.HeadFeatures, out headFeatures))
{
return(false);
}
// check foot features
FeatureValues footFeatures;
if (!m_requiredFootFeatures.UnifyDefaults(input.FootFeatures, out footFeatures))
{
return(false);
}
output = new List <WordSynthesis>();
for (int i = 0; i < m_subrules.Count; i++)
{
WordSynthesis ws;
if (m_subrules[i].Apply(input, out ws))
{
if (m_outPOS != null)
{
ws.POS = m_outPOS;
}
if (m_outHeadFeatures != null)
{
ws.HeadFeatures = m_outHeadFeatures.Clone();
}
ws.HeadFeatures.Add(headFeatures);
if (m_outFootFeatures != null)
{
ws.FootFeatures = m_outFootFeatures.Clone();
}
ws.FootFeatures.Add(footFeatures);
if (m_obligHeadFeatures != null)
{
foreach (Feature feature in m_obligHeadFeatures)
{
ws.AddObligatoryHeadFeature(feature);
}
}
ws.MorphologicalRuleApplied(this);
ws = CheckBlocking(ws);
if (TraceSynthesis)
{
MorphologicalRuleSynthesisTrace trace = new MorphologicalRuleSynthesisTrace(this, input.Clone());
// add output to morphological rule trace record
trace.RuleAllomorph = m_subrules[i];
trace.Output = ws.Clone();
ws.CurrentTrace.AddChild(trace);
// set current trace record to the morphological rule trace record for each
// output analysis
ws.CurrentTrace = trace;
}
output.Add(ws);
// return all word syntheses that match subrules that are constrained by environments,
// HC violates the disjunctive property of allomorphs here because it cannot check the
// environmental constraints until it has a surface form, we will enforce the disjunctive
// property of allomorphs at that time
// HC also checks for free fluctuation, if the next subrule has the same constraints, we
// do not treat them as disjunctive
if ((i != m_subrules.Count - 1 && !m_subrules[i].ConstraintsEqual(m_subrules[i + 1])) &&
m_subrules[i].RequiredEnvironments == null && m_subrules[i].ExcludedEnvironments == null)
{
break;
}
}
}
if (TraceSynthesis && output.Count == 0)
{
input.CurrentTrace.AddChild(new MorphologicalRuleSynthesisTrace(this, input.Clone()));
}
return(output.Count > 0);
}
