/**
* MVEL 2.0
* Copyright (C) 2007 The Codehaus
* Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.mvel2.ast;
import org.mvel2.CompileException;
import org.mvel2.ParserContext;
import org.mvel2.compiler.ExecutableLiteral;
import org.mvel2.compiler.ExecutableStatement;
import org.mvel2.integration.VariableResolverFactory;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import static java.lang.String.valueOf;
import static java.util.regex.Pattern.compile;
import static org.mvel2.MVEL.eval;
import static org.mvel2.util.ParseTools.subCompileExpression;
public class RegExMatch extends ASTNode {
private ExecutableStatement stmt;
private ExecutableStatement patternStmt;
private int patternStart;
private int patternOffset;
private Pattern p;
public RegExMatch(char[] expr, int start, int offset, int fields, int patternStart, int patternOffset, ParserContext pCtx) {
super(pCtx);
this.expr = expr;
this.start = start;
this.offset = offset;
this.patternStart = patternStart;
this.patternOffset = patternOffset;
if ((fields & COMPILE_IMMEDIATE) != 0) {
this.stmt = (ExecutableStatement) subCompileExpression(expr, start, offset);
if ((this.patternStmt = (ExecutableStatement)
subCompileExpression(expr, patternStart, patternOffset, pCtx)) instanceof ExecutableLiteral) {
try {
p = compile(valueOf(patternStmt.getValue(null, null)));
}
catch (PatternSyntaxException e) {
throw new CompileException("bad regular expression", expr, patternStart, e);
}
}
}
}
public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
if (p == null) {
return compile(valueOf(patternStmt.getValue(ctx, thisValue, factory))).matcher(valueOf(stmt.getValue(ctx, thisValue, factory))).matches();
}
else {
return p.matcher(valueOf(stmt.getValue(ctx, thisValue, factory))).matches();
}
}
public Object getReducedValue(Object ctx, Object thisValue, VariableResolverFactory factory) {
try {
return compile(valueOf(eval(expr, patternStart, patternOffset, ctx, factory))).matcher(valueOf(eval(expr, start, offset, ctx, factory))).matches();
}
catch (PatternSyntaxException e) {
throw new CompileException("bad regular expression", expr, patternStart, e);
}
}
public Class getEgressType() {
return Boolean.class;
}
public Pattern getPattern() {
return p;
}
public ExecutableStatement getStatement() {
return stmt;
}
public ExecutableStatement getPatternStatement() {
return patternStmt;
}
}