|
public IncreaseCurrentIndex ( ) : |
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| Résultat | ||
/// <exception cref="System.SqlSyntaxErrorException" />
public override void Process(CobarHint hint, string hintName, string sql)
{
string[] columns;
if (NextChar(hint, sql) == '[')
{
hint.IncreaseCurrentIndex();
columns = Convert2String(ParseArray(hint, sql, -1));
}
else
{
columns = new string[1];
columns[0] = (string)ParsePrimary(hint, sql);
}
object[][] values;
switch (NextChar(hint, sql))
{
case '[':
{
if (columns.Length == 1)
{
hint.IncreaseCurrentIndex();
var vs = ParseArray(hint, sql, -1);
values = new object[vs.Length][];
for (var i = 0; i < vs.Length; ++i)
{
values[i] = new object[1] {
vs[i]
};
//values[i][0] = vs[i];
}
}
else
{
values = ParseArrayArray(hint, sql, columns.Length);
}
break;
}
default:
{
if (columns.Length == 1)
{
values = new object[1][] { new object[1] };
values[0][0] = ParsePrimary(hint, sql);
}
else
{
throw new SqlSyntaxErrorException("err for partitionOperand: " + sql);
}
break;
}
}
hint.PartitionOperand = new Pair <string[], object[][]>(columns, values);
if (CurrentChar(hint, sql) == ')')
{
hint.IncreaseCurrentIndex();
}
}
/// <exception cref="System.SqlSyntaxErrorException" />
public override void Process(CobarHint hint, string hintName, string sql)
{
string[] columns;
if (NextChar(hint, sql) == '[')
{
hint.IncreaseCurrentIndex();
columns = Convert2String(ParseArray(hint, sql, -1));
}
else
{
columns = new string[1];
columns[0] = (string)ParsePrimary(hint, sql);
}
object[][] values;
switch (NextChar(hint, sql))
{
case '[':
{
if (columns.Length == 1)
{
hint.IncreaseCurrentIndex();
var vs = ParseArray(hint, sql, -1);
values = new object[vs.Length][];
for (var i = 0; i < vs.Length; ++i)
{
values[i] = new object[1] {vs[i]};
//values[i][0] = vs[i];
}
}
else
{
values = ParseArrayArray(hint, sql, columns.Length);
}
break;
}
default:
{
if (columns.Length == 1)
{
values = new object[1][] {new object[1]};
values[0][0] = ParsePrimary(hint, sql);
}
else
{
throw new SqlSyntaxErrorException("err for partitionOperand: " + sql);
}
break;
}
}
hint.PartitionOperand = new Pair<string[], object[][]>(columns, values);
if (CurrentChar(hint, sql) == ')')
{
hint.IncreaseCurrentIndex();
}
}
/// <summary>
/// current char is char after '[', after call, current char is char after
/// ']'
/// </summary>
/// <param name="len">less than 0 for array length unknown</param>
/// <exception cref="System.SqlSyntaxErrorException" />
private object[] ParseArray(CobarHint hint, string sql, int len)
{
object[] rst = null;
IList <object> list = null;
if (len >= 0)
{
rst = new object[len];
}
else
{
list = new List <object>();
}
for (var i = 0;; ++i)
{
var obj = ParsePrimary(hint, sql);
if (len >= 0)
{
rst[i] = obj;
}
else
{
list.Add(obj);
}
switch (CurrentChar(hint, sql))
{
case ']':
{
hint.IncreaseCurrentIndex();
if (len >= 0)
{
return(rst);
}
return(list.ToArray());
}
case ',':
{
hint.IncreaseCurrentIndex();
break;
}
default:
{
throw new SqlSyntaxErrorException("err for partitionOperand array: " + sql);
}
}
}
}
private void SkipSpace(CobarHint hint, string sql)
{
var ci = hint.CurrentIndex;
for (;;)
{
switch (sql[ci])
{
case ' ':
case '\t':
case '\n':
case '\r':
{
hint.IncreaseCurrentIndex();
++ci;
break;
}
default:
{
goto skip_break;
}
}
}
skip_break:
;
}
private void SkipSpace(CobarHint hint, string sql)
{
var ci = hint.CurrentIndex;
for (;;)
{
switch (sql[ci])
{
case ' ':
case '\t':
case '\n':
case '\r':
{
hint.IncreaseCurrentIndex();
++ci;
break;
}
default:
{
goto skip_break;
}
}
}
skip_break:
;
}
/// <summary>current char is '[[', after call, current char is char after ']]'</summary>
/// <exception cref="System.SqlSyntaxErrorException" />
private object[][] ParseArrayArray(CobarHint hint, string sql, int columnNum)
{
if (NextChar(hint, sql) == '[')
{
IList <object[]> list = new List <object[]>();
for (;;)
{
NextChar(hint, sql);
list.Add(ParseArray(hint, sql, columnNum));
var c = CurrentChar(hint, sql);
switch (c)
{
case ']':
{
hint.IncreaseCurrentIndex();
return(list.ToArray());
}
case ',':
{
NextChar(hint, sql);
break;
}
default:
{
throw new SqlSyntaxErrorException("err for partitionOperand array[]: " + sql);
}
}
}
}
var rst = new[] { new object[columnNum] };
rst[0] = ParseArray(hint, sql, columnNum);
return(rst);
}
/// <summary>current char is not separator</summary>
protected internal virtual char NextChar(CobarHint hint, string sql)
{
SkipSpace(hint, sql);
SkipSpace(hint.IncreaseCurrentIndex(), sql);
return sql[hint.CurrentIndex];
}
/// <summary>current char is not separator</summary>
protected internal virtual char NextChar(CobarHint hint, string sql)
{
SkipSpace(hint, sql);
SkipSpace(hint.IncreaseCurrentIndex(), sql);
return(sql[hint.CurrentIndex]);
}
/// <summary>current char is '[[', after call, current char is char after ']]'</summary>
/// <exception cref="System.SqlSyntaxErrorException" />
private object[][] ParseArrayArray(CobarHint hint, string sql, int columnNum)
{
if (NextChar(hint, sql) == '[')
{
IList<object[]> list = new List<object[]>();
for (;;)
{
NextChar(hint, sql);
list.Add(ParseArray(hint, sql, columnNum));
var c = CurrentChar(hint, sql);
switch (c)
{
case ']':
{
hint.IncreaseCurrentIndex();
return list.ToArray();
}
case ',':
{
NextChar(hint, sql);
break;
}
default:
{
throw new SqlSyntaxErrorException("err for partitionOperand array[]: " + sql);
}
}
}
}
var rst = new[] {new object[columnNum]};
rst[0] = ParseArray(hint, sql, columnNum);
return rst;
}
/// <summary>
/// current char is char after '[', after call, current char is char after
/// ']'
/// </summary>
/// <param name="len">less than 0 for array length unknown</param>
/// <exception cref="System.SqlSyntaxErrorException" />
private object[] ParseArray(CobarHint hint, string sql, int len)
{
object[] rst = null;
IList<object> list = null;
if (len >= 0)
{
rst = new object[len];
}
else
{
list = new List<object>();
}
for (var i = 0;; ++i)
{
var obj = ParsePrimary(hint, sql);
if (len >= 0)
{
rst[i] = obj;
}
else
{
list.Add(obj);
}
switch (CurrentChar(hint, sql))
{
case ']':
{
hint.IncreaseCurrentIndex();
if (len >= 0)
return rst;
return list.ToArray();
}
case ',':
{
hint.IncreaseCurrentIndex();
break;
}
default:
{
throw new SqlSyntaxErrorException("err for partitionOperand array: " + sql);
}
}
}
}
