public static FunctionUnit newDSFunction(string funName, Env env, CellExt1 cs, DataSet ds)
{
FunctionUnit unit3;
try
{
if (ds == null)
{
throw new ReportError("数据集未产生，可能因为未连接数据库");
}
Type classType = (Type)hashtable_1[funName.ToLower()];
FunctionUnit unit = (FunctionUnit)SupportClass.CreateNewInstance(classType);
unit.env = env;
unit.ds = ds;
unit.cs = cs;
unit3 = unit;
}
catch (UnauthorizedAccessException exception)
{
throw new SystemException(exception.Message);
}
catch (Exception exception2)
{
throw new SystemException(exception2.Message);
}
return(unit3);
}
protected internal virtual Unit createDSNode(DataSet ds, string id, bool check)
{
if (id[0] == '#')
{
int colNo = 0;
try
{
colNo = int.Parse(id.Substring(1));
}
catch (FormatException)
{
throw new ReportError("数据集列索引格式不正确");
}
if (check)
{
if (ds == null)
{
throw new ReportError("数据集未产生");
}
if (colNo > ds.ColumnCount)
{
throw new ReportError("数据集列索引超出范围");
}
return(new DSVar(ds, colNo));
}
}
if (!this.Boolean_0)
{
if (!check)
{
return(new DSVar(ds, id));
}
if (ds == null)
{
throw new ReportError("数据集未产生");
}
if (ds.isColumnName(id))
{
return(new DSVar(ds, ds.getColumnNo(id)));
}
}
else if (LoadFunction.isDSFunName(id))
{
FunctionUnit unit2 = check ? LoadFunction.newDSFunction(id, this.env_0, this.cellExt1_0, ds) : LoadFunction.newDSFunction(id, this.env_0, this.cellExt1_0);
unit2.setParameter(this.scanParameter());
return(unit2);
}
return(null);
}
public static FunctionUnit newDSFunction(string funName, Env env, CellExt1 cs)
{
FunctionUnit unit3;
try
{
Type classType = (Type)hashtable_1[funName.ToLower()];
FunctionUnit unit = (FunctionUnit)SupportClass.CreateNewInstance(classType);
unit.env = env;
unit.cs = cs;
unit3 = unit;
}
catch (UnauthorizedAccessException exception)
{
throw new SystemException(exception.Message);
}
catch (Exception exception2)
{
throw new SystemException(exception2.Message);
}
return(unit3);
}
protected internal virtual Unit createNode()
{
char ch = this.string_0[this.int_0];
int num = -1;
switch (ch)
{
case '"':
case '\'':
{
num = ExpString.scanQuotation(this.string_0, this.int_0);
if (num == -1)
{
throw new ReportError("引号不匹配");
}
string str3 = this.string_0.Substring(this.int_0 + 1, num - (this.int_0 + 1));
this.int_0 = num + 1;
return(new Constant(str3));
}
}
if ((this.cellExt1_0 != null) && (ch == '{'))
{
num = ExpString.scanBrace(this.string_0, this.int_0);
if (num == -1)
{
throw new ReportError("大括号不匹配");
}
FunctionUnit unit7 = LoadFunction.newFunction("select", this.env_0, this.cellExt1_0, this.dataSet_0);
unit7.setParameter(this.string_0.Substring(this.int_0 + 1, num - (this.int_0 + 1)));
this.int_0 = num + 1;
return(unit7);
}
if ((this.cellExt1_0 != null) && (ch == '['))
{
FunctionUnit unit6;
num = ExpString.scanBracket(this.string_0, this.int_0);
if (num == -1)
{
throw new ReportError("中括号不匹配");
}
if ((this.unit_1 != null) && !this.unit_1.Operator)
{
if (this.unit_1 is CSVar)
{
unit6 = LoadFunction.newFunction("move", this.env_0, this.cellExt1_0, this.dataSet_0);
unit6.setParameter(this.string_0.Substring(this.int_0 + 1, num - (this.int_0 + 1)));
}
else
{
unit6 = LoadFunction.newFunction("offset", this.env_0, this.cellExt1_0, this.dataSet_0);
unit6.setParameter(this.string_0.Substring(this.int_0 + 1, num - (this.int_0 + 1)));
}
}
else
{
unit6 = LoadFunction.newFunction("list", this.env_0, this.cellExt1_0, this.dataSet_0);
unit6.setParameter(this.string_0.Substring(this.int_0 + 1, num - (this.int_0 + 1)));
}
this.int_0 = num + 1;
return(unit6);
}
string id = this.scanId();
if (id.ToUpper().Equals("and".ToUpper()))
{
return(new And());
}
if (id.ToUpper().Equals("or".ToUpper()))
{
return(new Or());
}
if (id.ToUpper().Equals("not".ToUpper()))
{
return(new Not());
}
if (id.ToUpper().Equals("in".ToUpper()))
{
return(new In());
}
if (id.ToUpper().Equals("to".ToUpper()))
{
return(new To());
}
if (id.ToUpper().Equals("like".ToUpper()))
{
return(new Like());
}
DataSet ds = this.dataSet_0;
int index = id.IndexOf('.');
if ((index > 0) && !char.IsDigit(id[0]))
{
string str2 = id.Substring(0, index);
if (this.env_0.isDataSetName(str2))
{
ds = this.env_0.getDataSet(str2);
id = id.Substring(index + 1);
Unit unit5 = this.createDSNode(ds, id, true);
if (unit5 == null)
{
throw new ReportError("有不可识别的数据集函数" + id.ToString().ToString());
}
return(unit5);
}
}
if (this.dataSet_0 != null)
{
Unit unit4 = this.createDSNode(this.dataSet_0, id, true);
if (unit4 != null)
{
return(unit4);
}
}
if (this.unit_1 is DSMember)
{
Unit unit3 = this.createDSNode(this.dataSet_0, id, false);
if (unit3 != null)
{
return(unit3);
}
}
bool isSaved = false;
if (id[0] != '@')
{
if (id[0] == '$')
{
id = id.Substring(1);
isSaved = true;
}
}
else
{
id = id.Substring(1);
}
if ((this.cellExt1_0 != null) && id.ToUpper().Equals("value".ToUpper()))
{
return(new CSCurrent(this.cellExt1_0));
}
if (this.env_0.isParamName(id))
{
return(new Constant(this.env_0.getParam(id)));
}
if ((this.cellExt1_0 != null) && this.cellExt1_0.isSource(id.ToLower()))
{
id = id.ToLower();
if (this.cellExt1_0.getSource(id) != null)
{
return(new CSVar(this.cellExt1_0.getSource(id), isSaved));
}
return(new CSVar(this.cellExt1_0, id));
}
if (!this.Boolean_0)
{
return(new Constant(ConvertTool.parse(id)));
}
if (!LoadFunction.isFunName(id))
{
throw new ReportError("未知的函数" + id.ToString().ToString());
}
FunctionUnit unit2 = LoadFunction.newFunction(id, this.env_0, this.cellExt1_0, this.dataSet_0);
unit2.setParameter(this.scanParameter());
return(unit2);
}
