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package com.sun.xml.internal.rngom.digested;

import com.sun.xml.internal.rngom.ast.builder.BuildException;

import com.sun.xml.internal.rngom.ast.builder.SchemaBuilder;

import com.sun.xml.internal.rngom.ast.util.CheckingSchemaBuilder;

import com.sun.xml.internal.rngom.parse.Parseable;

import com.sun.xml.internal.rngom.parse.compact.CompactParseable;

import com.sun.xml.internal.rngom.parse.xml.SAXParseable;

import org.xml.sax.ErrorHandler;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

import org.xml.sax.SAXParseException;

import org.xml.sax.helpers.DefaultHandler;

/**

 * @author Kohsuke Kawaguchi (kk@kohsuke.org)

 */

public class Main {

    public static void main(String[] args) throws Exception {

        Parseable p;

        ErrorHandler eh = new DefaultHandler() {

            @Override

            public void error(SAXParseException e) throws SAXException {

                throw e;

            }

        };

        // the error handler passed to Parseable will receive parsing errors.

        if(args[0].endsWith(".rng"))

            p = new SAXParseable(new InputSource(args[0]),eh);

        else

            p = new CompactParseable(new InputSource(args[0]),eh);

        // the error handler passed to CheckingSchemaBuilder will receive additional

        // errors found during the RELAX NG restrictions check.

        // typically you'd want to pass in the same error handler,

        // as there's really no distinction between those two kinds of errors.

        SchemaBuilder sb = new CheckingSchemaBuilder(new DSchemaBuilderImpl(),eh);

        try {

            // run the parser

            p.parse(sb);

        } catch( BuildException e ) {

            // I found that Crimson doesn't show the proper stack trace

            // when a RuntimeException happens inside a SchemaBuilder.

            // the following code shows the actual exception that happened.

            if( e.getCause() instanceof SAXException ) {

                SAXException se = (SAXException) e.getCause();

                if(se.getException()!=null)

                    se.getException().printStackTrace();

            }

            throw e;

        }

    }

}