public MySQLLexer(char[] sql)
{
if ((this.sbuf = sbufRef.Value) == null)
{
this.sbuf = new char[1024];
sbufRef.Value = this.sbuf;
}
if (CharTypes.IsWhitespace(sql[sql.Length - 1]))
{
this.sql = sql;
}
else
{
this.sql = new char[sql.Length + 1];
Array.ConstrainedCopy(sql, 0, this.sql, 0, sql.Length);
}
this.eofIndex = this.sql.Length - 1;
this.sql[this.eofIndex] = (char)MySQLLexer.EOI;
}
protected void SkipSeparator()
{
for (; !IsEof();)
{
for (; CharTypes.IsWhitespace(ch); ScanChar())
{
;
}
switch (ch)
{
case '#': // MySQL specified
for (; ScanChar() != '\n';)
{
if (IsEof())
{
return;
}
}
ScanChar();
continue;
case '/':
if (HasChars(2) && '*' == sql[curIndex + 1])
{
bool commentSkip;
if ('!' == sql[curIndex + 2])
{
ScanChar(3);
inCStyleComment = true;
inCStyleCommentIgnore = false;
commentSkip = false;
// MySQL use 5 digits to indicate version. 50508 means MySQL 5.5.8
if (HasChars(5) &&
CharTypes.IsDigit(ch) &&
CharTypes.IsDigit(sql[curIndex + 1]) &&
CharTypes.IsDigit(sql[curIndex + 2]) &&
CharTypes.IsDigit(sql[curIndex + 3]) &&
CharTypes.IsDigit(sql[curIndex + 4]))
{
int version = ch - '0';
version *= 10;
version += sql[curIndex + 1] - '0';
version *= 10;
version += sql[curIndex + 2] - '0';
version *= 10;
version += sql[curIndex + 3] - '0';
version *= 10;
version += sql[curIndex + 4] - '0';
ScanChar(5);
if (version > C_STYLE_COMMENT_VERSION)
{
inCStyleCommentIgnore = true;
}
}
SkipSeparator();
}
else
{
ScanChar(2);
commentSkip = true;
}
if (commentSkip)
{
for (int state = 0; !IsEof(); ScanChar())
{
if (state == 0)
{
if ('*' == ch)
{
state = 1;
}
}
else
{
if ('/' == ch)
{
ScanChar();
break;
}
else if ('*' != ch)
{
state = 0;
}
}
}
continue;
}
}
return;
case '-':
if (HasChars(3) && '-' == sql[curIndex + 1] && CharTypes.IsWhitespace(sql[curIndex + 2]))
{
ScanChar(3);
for (; !IsEof(); ScanChar())
{
if ('\n' == ch)
{
ScanChar();
break;
}
}
continue;
}
break;
default:
return;
}
}
}