org.mvel2.util.ErrorUtil Maven / Gradle / Ivy

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package org.mvel2.util;

import org.mvel2.CompileException;
import org.mvel2.ErrorDetail;

/**
 * @author Mike Brock .
 */
public class ErrorUtil {

    public static CompileException rewriteIfNeeded(CompileException caught, char[] outer, int outerCursor) {
        if (outer != caught.getExpr()) {
            if (caught.getExpr().length <= caught.getCursor()) {
                caught.setCursor(caught.getExpr().length - 1);
            }

            try {
                String innerExpr = new String(caught.getExpr()).substring(caught.getCursor());
                caught.setExpr(outer);

                String outerStr = new String(outer);

                int newCursor = outerStr.substring(outerStr.indexOf(new String(caught.getExpr()))).indexOf(innerExpr);

                caught.setCursor(newCursor);
            } catch (Throwable t) {
                t.printStackTrace();
            }
        }
        return caught;
    }

    public static ErrorDetail rewriteIfNeeded(ErrorDetail detail, char[] outer, int outerCursor) {
        if (outer != detail.getExpr()) {
            String innerExpr = new String(detail.getExpr()).substring(detail.getCursor());
            detail.setExpr(outer);

            int newCursor = outerCursor;
            newCursor += new String(outer).substring(outerCursor).indexOf(innerExpr);

            detail.setCursor(newCursor);
        }
        return detail;
    }
}