Thanks for the response, I have been away for a while.
Bug fixed, here is fixed procedure.
public string ParseNamedParameters(string sql)
{
// Clear old parameters.
this.namedParameters.Clear();
// We do not need to parse if there are no parameters.
if (sql.IndexOf('@') == -1)
{
return sql;
}
int index;
int end = sql.Length - 1;
StringBuilder resultBuilder = new StringBuilder(sql.Length);
for (int i = 0, j = sql.Length; i < j; i++)
{
switch (sql[i])
{
// Read a named parameter.
case '@':
for (index = i + 1; index < j &&
(Char.IsLetterOrDigit(sql[index]) || sql[index] == '_' || sql[index]
== '$'); index++);
resultBuilder.Append('?');
this.namedParameters.Add(sql.Substring(i, index - i));
i = index - 1;
continue;
// Read quoted text.
case '\'':
case '"':
for (index = i + 1; index < j && sql[index] != sql[i]; index++);
if(index >= j)
{
resultBuilder.Append(sql.Substring(i));
}
else
{
resultBuilder.Append(sql.Substring(i, index + 1 - i));
}
i = index;
continue;
// Read a single line comment.
case '-':
if ((i < end) && (sql[i + 1] == '-'))
{
for (index = i + 1; index < j && (sql[index] != '\r'
&& sql[index] != '\n'); index++);
resultBuilder.Append(sql.Substring(i, index - i));
i = index - 1;
continue;
}
resultBuilder.Append('-');
continue;
// Read a block comment.
case '/':
if ((i < end) && (sql[i + 1] == '*'))
{
while (i < j)
{
resultBuilder.Append(sql[i]);
if (sql[i] == '*' && i < end && sql[i + 1] == '/')
{
break;
}
i++;
}
continue;
}
resultBuilder.Append('/');
continue;
// Read content.
default:
resultBuilder.Append(sql[i]);
continue;
}
}
return resultBuilder.ToString();
}
On Sat, Mar 21, 2009 at 1:13 PM, Jiri Cincura <disk...@cincura.net> wrote:
> On Tue, Mar 3, 2009 at 23:43, Gareth <gareth.gosl...@gmail.com> wrote:
>> This method runs faster than the current one, it does not strip
>> anything except "@PARAMETER" text to "?" and there are not alot of
>> booleans.
>>
>> If you think this is ok, I will add a patch to DNET-176.
>
>
> Hi, sorry for taking long time to respond.
>
> It's not correct. Try to parse i.e. "select '@bar\"". You'll end up
> with exception.
>
> --
> Jiri {x2} Cincura (CTO x2develop.com)
> http://blog.vyvojar.cz/jirka/ | http://www.ID3renamer.com
--
Gareth
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