YylexTest.java
package org.drip.sample.json;
import java.io.*;
import org.drip.json.parser.*;
import org.drip.service.env.EnvManager;
/*
* -*- mode: java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*/
/*!
* Copyright (C) 2019 Lakshmi Krishnamurthy
* Copyright (C) 2018 Lakshmi Krishnamurthy
* Copyright (C) 2017 Lakshmi Krishnamurthy
* Copyright (C) 2016 Lakshmi Krishnamurthy
* Copyright (C) 2015 Lakshmi Krishnamurthy
*
* This file is part of DROP, an open-source library targeting risk, transaction costs, exposure, margin
* calculations, valuation adjustment, and portfolio construction within and across fixed income,
* credit, commodity, equity, FX, and structured products.
*
* https://lakshmidrip.github.io/DROP/
*
* DROP is composed of three modules:
*
* - DROP Analytics Core - https://lakshmidrip.github.io/DROP-Analytics-Core/
* - DROP Portfolio Core - https://lakshmidrip.github.io/DROP-Portfolio-Core/
* - DROP Numerical Core - https://lakshmidrip.github.io/DROP-Numerical-Core/
*
* DROP Analytics Core implements libraries for the following:
* - Fixed Income Analytics
* - Asset Backed Analytics
* - XVA Analytics
* - Exposure and Margin Analytics
*
* DROP Portfolio Core implements libraries for the following:
* - Asset Allocation Analytics
* - Transaction Cost Analytics
*
* DROP Numerical Core implements libraries for the following:
* - Statistical Learning
* - Numerical Optimizer
* - Spline Builder
* - Algorithm Support
*
* Documentation for DROP is Spread Over:
*
* - Main => https://lakshmidrip.github.io/DROP/
* - Wiki => https://github.com/lakshmiDRIP/DROP/wiki
* - GitHub => https://github.com/lakshmiDRIP/DROP
* - Repo Layout Taxonomy => https://github.com/lakshmiDRIP/DROP/blob/master/Taxonomy.md
* - Javadoc => https://lakshmidrip.github.io/DROP/Javadoc/index.html
* - Technical Specifications => https://github.com/lakshmiDRIP/DROP/tree/master/Docs/Internal
* - Release Versions => https://lakshmidrip.github.io/DROP/version.html
* - Community Credits => https://lakshmidrip.github.io/DROP/credits.html
* - Issues Catalog => https://github.com/lakshmiDRIP/DROP/issues
* - JUnit => https://lakshmidrip.github.io/DROP/junit/index.html
* - Jacoco => https://lakshmidrip.github.io/DROP/jacoco/index.html
*
* 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.
*/
/**
* <i>YylexTest</i> is an Adaptation of the YylexTest Class from the RFC4627 compliant JSON Simple
* (https://code.google.com/p/json-simple/).
*
* <br><br>
* <ul>
* <li><b>Module </b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/NumericalCore.md">Numerical Core Module</a></li>
* <li><b>Library</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/AlgorithmSupportLibrary.md">Algorithm Support Library</a></li>
* <li><b>Project</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/sample/README.md">Sample</a></li>
* <li><b>Package</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/sample/json/README.md">JSON Serialization and De-serialization</a></li>
* </ul>
* <br><br>
*
* @author Fang Yidong
* @author Lakshmi Krishnamurthy
*/
public class YylexTest {
public static final void testYylex() throws Exception{
String s="\"\\/\"";
System.out.println(s);
StringReader in = new StringReader(s);
Yylex lexer=new Yylex(in);
Yytoken token=lexer.yylex();
System.out.println (Yytoken.TYPE_VALUE == token.type);
System.out.println ("/".equalsIgnoreCase ((String) token.value));
s="\"abc\\/\\r\\b\\n\\t\\f\\\\\"";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
token=lexer.yylex();
System.out.println (Yytoken.TYPE_VALUE == token.type);
System.out.println ("abc/\r\b\n\t\f\\".equalsIgnoreCase ((String)token.value));
s="[\t \n\r\n{ \t \t\n\r}";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
token=lexer.yylex();
System.out.println (Yytoken.TYPE_LEFT_SQUARE == token.type);
token=lexer.yylex();
System.out.println (Yytoken.TYPE_LEFT_BRACE == token.type);
token=lexer.yylex();
System.out.println (Yytoken.TYPE_RIGHT_BRACE == token.type);
s="\b\f{";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
ParseException err=null;
try{
token=lexer.yylex();
}
catch(ParseException e){
err=e;
System.out.println("error:"+err);
System.out.println (ParseException.ERROR_UNEXPECTED_CHAR == e.getErrorType());
System.out.println (0 == e.getPosition());
System.out.println (Character.toString ('\b') == e.getUnexpectedObject());
}
catch(IOException ie){
throw ie;
}
System.out.println (err!=null);
s="{a : b}";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
err=null;
try{
lexer.yylex();
token=lexer.yylex();
}
catch(ParseException e){
err=e;
System.out.println("error:"+err);
System.out.println (ParseException.ERROR_UNEXPECTED_CHAR == e.getErrorType());
System.out.println (Character.toString ('a') == e.getUnexpectedObject());
System.out.println (1 == e.getPosition());
}
catch(IOException ie){
throw ie;
}
System.out.println (err!=null);
}
public static final void main (
final String[] astrArgs)
throws Exception
{
EnvManager.InitEnv ("");
testYylex();
EnvManager.TerminateEnv();
}
}