public NodePattern getNodePattern(String name) {
Object obj = variables.get(name);
if (obj != null) {
if (obj instanceof SequencePattern) {
SequencePattern seqPattern = (SequencePattern) obj;
if (seqPattern.getPatternExpr() instanceof SequencePattern.NodePatternExpr) {
return ((SequencePattern.NodePatternExpr) seqPattern.getPatternExpr()).nodePattern;
} else {
throw new Error(
"Invalid node pattern class: "
+ seqPattern.getPatternExpr().getClass()
+ " for variable "
+ name);
}
} else if (obj instanceof SequencePattern.NodePatternExpr) {
SequencePattern.NodePatternExpr pe = (SequencePattern.NodePatternExpr) obj;
return pe.nodePattern;
} else if (obj instanceof NodePattern) {
return (NodePattern) obj;
} else if (obj instanceof String) {
try {
SequencePattern.NodePatternExpr pe =
(SequencePattern.NodePatternExpr) parser.parseNode(this, (String) obj);
return pe.nodePattern;
} catch (Exception pex) {
throw new RuntimeException("Error parsing " + obj + " to node pattern", pex);
}
} else {
throw new Error(
"Invalid node pattern variable class: " + obj.getClass() + " for variable " + name);
}
}
return null;
}
public SequencePattern.PatternExpr getSequencePatternExpr(String name, boolean copy) {
Object obj = variables.get(name);
if (obj != null) {
if (obj instanceof SequencePattern) {
SequencePattern seqPattern = (SequencePattern) obj;
return seqPattern.getPatternExpr();
} else if (obj instanceof SequencePattern.PatternExpr) {
SequencePattern.PatternExpr pe = (SequencePattern.PatternExpr) obj;
return (copy) ? pe.copy() : pe;
} else if (obj instanceof NodePattern) {
return new SequencePattern.NodePatternExpr((NodePattern) obj);
} else if (obj instanceof String) {
try {
return parser.parseSequence(this, (String) obj);
} catch (Exception pex) {
throw new RuntimeException("Error parsing " + obj + " to sequence pattern", pex);
}
} else {
throw new Error("Invalid sequence pattern variable class: " + obj.getClass());
}
}
return null;
}
public void bind(String name, SequencePattern pattern) {
bind(name, pattern.getPatternExpr());
}