//在GetLegalKeyWords结果的基础上，检查
//1.是否有-c -w之一
//2.是否-c -w都有
//设置相应的flag，出现其一就把commandLegal = false
public void CheckCommandCombinationLegal()
{
//check combination
if (!(LegalKeyWordCommands.Contains("-c") || LegalKeyWordCommands.Contains("-w")))
{
try
{
throw new MissingMustContainedKeyWord();
}
catch (MissingMustContainedKeyWord e) {
Console.WriteLine(e.Message + "--> Should at least contain one of -c or -w command");
CommandLegal = false;
MissingMustContainedKeyWord = true;
}
}
else
{
if (LegalKeyWordCommands.Contains("-c") && LegalKeyWordCommands.Contains("-w"))
{
try
{
throw new IllegalKeyWordCombination();
}
catch (IllegalKeyWordCombination e)
{
Console.WriteLine(e.Message + "--> Should not contain both -c and -w command");
CommandLegal = false;
IllegalKeyWordCombination = true;
}
}
}
}
//将不合法的关键词去掉，结果存入LegalKeyWordCommands
//例 "-c -w -x -t [ a -r" --> "-c -w -t a -r",若有不合法关键字，CommandLegal = false
public void GetLegalKeyWords()
{
string ExtraExceptionMessage = "-->";
foreach (string Word in InitialCommands)
{
if (Command.LegalCommands.Contains(Word))
{
LegalKeyWordCommands.Add(Word);
}
else
{
bool IllegalKeywordException = false;
if (Word.Length == 1)
{
char CharWord = Char.Parse(Word);
//rule out start or end char setting
if (!((CharWord >= 'a' && CharWord <= 'z') || (CharWord >= 'A' && CharWord <= 'Z')))
{
IllegalKeywordException = true;
ExtraExceptionMessage += CharWord.ToString() + " ";
}
else
{
LegalKeyWordCommands.Add(CharWord.ToString());
}
}
else
{
IllegalKeywordException = true;
ExtraExceptionMessage += Word + " ";
}
if (IllegalKeywordException)
{
try
{
throw new IllegalCommandKeyWord();
}
catch (IllegalCommandKeyWord e)
{
Console.WriteLine(e.Message + ExtraExceptionMessage);
CommandLegal = false;
IllegalCommandKeyWord = true;
}
}
}
}
}
