public UParser(UCodeManager codeManager)
{
this.mCodeManager = codeManager;
this.LastCut1 = new UCodeCut();
this.LastCut2 = new UCodeCut();
Reset();
}
/// <summary>
/// 重置分析器
/// </summary>
public void Reset()
{
EndOfCode = false;
RowIndex = 0;
ColIndex = 0;
OldRowIndex = 0;
OldColIndex = 0;
LastCut1 = new UCodeCut();
LastCut2 = new UCodeCut();
}
public void AddCut(UCodeCut cut)
{
int len = UHelper.GetAbsoluteLength(cut.Data);
if (HasVisibleCharacter == false && cut.CutType == UCutType.Space)
{
VisibleStartCol = VisibleStartCol + len;// UHelper.GetAbsoluteLength(cut.Data);
}
else
{
if (cut.CutType != UCutType.NewLine)
{
HasVisibleCharacter = true;
}
}
mCutStartColList.Add(mCutStartCol);
mCuts.Add(cut);
mCutStartCol += len;// UHelper.GetAbsoluteLength(cut.Data);
}
/// <summary>
/// 返回下一个代码切块
/// </summary>
/// <returns></returns>
public UCodeCut GetNextCut()
{
try
{
UCodeCut cut = new UCodeCut();
List <byte> cutData = new List <byte>();
byte b;
UCutType currType = UCutType.None;
bool inString = false; // 是否解析字符串
if (EndOfCode == true)
{
cut.CutType = UCutType.End;
return(cut);
}
while (!EndOfCode)
{
b = GetNextByte();
cutData.Add(b);
#region UCutType.None
if (currType == UCutType.None)
{
if (b == UConfig.Space)
{
currType = UCutType.Space;
continue;
}
if (b == UConfig.Tab)
{
currType = UCutType.Tab;
break;
}
if (b == UConfig.DoubleQuote)
{
currType = UCutType.String;
inString = true;
continue;
}
if (b == UConfig.NewLine)
{
currType = UCutType.NewLine;
// 跳过回车符
if (PeekNextByte() == UConfig.Enter)
{
GetNextByte();
}
break;
}
if (b == UConfig.BackSlash)
{
if (PeekNextByte() == UConfig.BackSlash)
{
currType = UCutType.Annotation;
continue;
}
}
if (UHelper.IsSymbol(b))
{
currType = UCutType.Symbol;
break;
}
if (UHelper.IsCharacter(b))
{
currType = UCutType.Normal;
continue;
}
if (UHelper.IsDigit(b))
{
currType = UCutType.Digit;
continue;
}
}
#endregion
#region UCutType.Normal
if (currType == UCutType.Normal)
{
if (UHelper.IsCutEnd(b))
{
BackToLastByte();
cutData.RemoveAt(cutData.Count - 1);
break;
}
}
#endregion
#region UCutType.String
if (currType == UCutType.String)
{
if (b == UConfig.NewLine)
{
BackToLastByte();
currType = UCutType.Normal;
break;
}
if (b == UConfig.DoubleQuote)
{
inString = false;
break;
}
if (b == UConfig.Slash)
{
// 添加 \ 后的字符
if (inString)
{
//ch = (char)GetNextChar();
//cutData.Add((byte)ch);
cutData.Add(GetNextByte());
continue;
}
}
}
#endregion
#region UCutType.Space
if (currType == UCutType.Space)
{
if (b != UConfig.Space)
{
BackToLastByte();
cutData.RemoveAt(cutData.Count - 1);
break;
}
}
#endregion
#region UCutType.Digit
if (currType == UCutType.Digit)
{
if (UHelper.IsCutEnd(b))
{
BackToLastByte();
cutData.RemoveAt(cutData.Count - 1);
break;
}
if (!UHelper.IsDigit(b))
{
BackToLastByte();
cutData.RemoveAt(cutData.Count - 1);
break;
}
}
#endregion
#region UCutType.Annotation
if (currType == UCutType.Annotation)
{
if (b == UConfig.NewLine)
{
BackToLastByte();
cutData.RemoveAt(cutData.Count - 1);
break;
}
}
#endregion
}
cut.CutType = currType;
// 替换Tab为Space
if (currType == UCutType.Tab)
{
cut.Data = UConfig.TabString;
}
else
{
cut.Data = UHelper.GetStringByBytes(cutData.ToArray());
}
return(ParseCodeCutType(cut));
}
catch (Exception ex)
{
throw ex;
}
}
// 分析cut的类型
private UCodeCut ParseCodeCutType(UCodeCut cut)
{
// 如果上一个Cut是错误的，之后都是错误
if (LastCut1.CutType == UCutType.Error)
{
cut.CutType = UCutType.Error;
return(cut);
}
// 如果是普通的一段文本，判断是否为关键字
if (cut.CutType == UCutType.Normal)
{
if (UHelper.IsKeyWord(cut.Data))
{
cut.CutType = UCutType.KeyWord;
// 新版：设置不同关键字的颜色
cut.CutType.CutColor = UHelper.GetKeyWordColor(cut.Data);
}
}
// 如果是以关键字开头，空格结尾，那么检查是否为类定义符
if (LastCut2.CutType == UCutType.KeyWord && LastCut1.CutType == UCutType.Space)
{
// 类的定义
if (LastCut2.Data == UConfig.ClassString)
{
cut.CutType = UCutType.ClassName;
foreach (string str in UConfig.KeyWords)
{
if (str == cut.Data)
{
cut.CutType = UCutType.Error;
break;
}
}
}
}
else if (LastCut1.CutType == UCutType.Space)
{
// 函数名和变量的定义
foreach (string str in UConfig.VariableType)
{
if (str == LastCut2.Data)
{
if (PeekNextByte() == (byte)'(')
{
cut.CutType = UCutType.FunctionName;
}
else
{
cut.CutType = UCutType.VariableName;
}
foreach (string s in UConfig.KeyWords)
{
if (s == cut.Data)
{
cut.CutType = UCutType.Error;
break;
}
}
break;
}
}
}
// 引用类型，直接赋值是地址
//LastCut2 = LastCut1;
//LastCut1 = cut;
LastCut2 = new UCodeCut(LastCut1);
LastCut1 = new UCodeCut(cut);
return(cut);
}
public UCodeCut(UCodeCut cut)
{
this.CutType = cut.CutType;
this.Data = cut.Data;
}
