使用java.util.stack的Java语法检查器

Question

我有一个关于制作Java语法检查器的任务。它使用java.util.stack，它应该做的是从提供的文件中读取，然后检查语法错误。如何做到这一点的方法是在堆栈中添加一个“令牌”，其中包含字符，行号，行中的位置，是否不匹配或意外以及行本身。

该功能的代码如下：

    public static boolean check(String Filename, boolean ConsoleOutput) throws FileNotFoundException
    {
        mFileName = Filename;
        mConsoleOutput = ConsoleOutput;
        File mFile = new File("src/Kurien/tests/" + mFileName);
        Scanner FileReader = new Scanner(mFile);
        if(ConsoleOutput)
        {
            System.out.println("Processing " + "'" + mFileName + "'" + "\n" + "----------------------");
        }
        while (FileReader.hasNextLine())
        {
            mLineNumber++;
            mLine = FileReader.nextLine();
            for (int counter = 0; counter < mLine.length(); counter++)
            {
                mCharacter = mLine.charAt(counter);
                if (mCharacter == '(')
                {
                    mStack.push(new Token(mCharacter, mLineNumber, counter, ErrorDetail.Unmatched, mLine));
                }
                else if (mCharacter == '{')
                {
                    mStack.push(new Token(mCharacter, mLineNumber, counter, ErrorDetail.Unmatched, mLine));
                }
                else if (mCharacter == ')')
                {
                    if (mStack.isEmpty())
                    {
                        Error = true;
                        mStack.push(new Token(mCharacter, mLineNumber, counter, ErrorDetail.Unexpected, mLine));
                    }
                    else if (mStack.peek().equals('('))
                    {
                        mStack.pop();
                    }
                    else
                    {
                        Error = true;
                        mStack.push(new Token(mCharacter, mLineNumber, counter, ErrorDetail.Unexpected, mLine));
                    }
                }
                else if (mCharacter == '}')
                {
                    if (mStack.isEmpty())
                    {
                        Error = true;
                        mStack.push(new Token(mCharacter, mLineNumber, counter, ErrorDetail.Unexpected, mLine));
                    }
                    else if (mStack.peek().equals('{'))
                    {
                        mStack.pop();
                    }
                    else
                    {
                        Error = true;
                        mStack.push(new Token(mCharacter, mLineNumber, counter, ErrorDetail.Unexpected,mLine));
                    }
                }
            }
        }
        if(!Error)
        {
            System.out.println("[SUCCESS]");
        }
        else
        {
            while(mStack.iterator().hasNext())
            {
                Token Temp = (Token)mStack.iterator().next();
                if(Temp.mDetail == ErrorDetail.Unexpected)
                {
                    System.out.println("[ERROR] " + Temp.mDetail.toString() + " closing token in file '" + mFileName + "'" + " line#" + Temp.mLineNumber);
                    System.out.println(mLine);
                    System.out.println(Spaces(Temp.mLine.length() - Temp.mPosition) + "^");

                }
                else if(Temp.mDetail == ErrorDetail.Unmatched)
                {
                    System.out.println("[ERROR] + " + Temp.mDetail + "token in file '" + mFileName + "'" + "line#" + Temp.mLineNumber);
                    System.out.println(mLine);
                    System.out.println(Spaces(Temp.mLine.length() - Temp.mPosition) + "^");
                }
            }
        }
        return Error;
    }

    private static class Token
    {
        char mCharacter;
        int mLineNumber;
        int mPosition;
        ErrorDetail mDetail;
        String mLine;

        Token(char Character, int LineNumber, int Position, ErrorDetail Detail, String Line)
        {
            mCharacter = Character;
            mLineNumber = LineNumber;
            mPosition = Position;
            mDetail = Detail;
            mLine = Line;
        }
    }
}

现在，第一个测试用例的预期输出如下：

[ERROR] Unexpected closing token in file 'test1.txt' line#7:
}
^

但我得到的是以下内容：

[ERROR] + Unmatchedtoken in file 'test1.txt'line#1

我知道格式化可以很好地调整，但是这里显然存在另一个问题，我无法完全按手指。