public bool Run(CommonScriptCursor cursor)
{
int index = -1;
if (_single)
{
index = cursor.Value.IndexOf(_char, cursor.Index);
}
else
{
for (int i = cursor.Index; i < cursor.Length; i++)
{
if (_chars.IndexOf(cursor.Value[i]) == -1)
{
continue;
}
index = i;
break;
}
}
if (index == -1)
{
return(false);
}
cursor.Index = index;
return(true);
}
public bool Run(CommonScriptCursor cursor)
{
int index = cursor.Index - 1;
while ((index = cursor.Value.IndexOf(_quote, index + 1)) >= 0)
{
if (_backslashEscape && index > cursor.Index && cursor.Value[index - 1] == '\\')
{
continue;
}
if (index + 1 < cursor.Value.Length && cursor.Value[index + 1] == _quote)
{
index++;
continue;
}
break;
}
if (index == -1)
{
return(false);
}
cursor.Index = index;
return(true);
}
public bool Run(CommonScriptCursor cursor)
{
int count = cursor.Length - cursor.Index;
int breakIndex = -1;
foreach (var breakChar in _breakChars)
{
int index = cursor.Value.IndexOf(breakChar, cursor.Index, count);
if (index == -1)
{
continue;
}
breakIndex = index;
count = breakIndex - cursor.Index + 1;
}
if (breakIndex == -1)
{
cursor.Index = cursor.Length - 1;
}
else
{
cursor.Index = breakIndex - 1;
}
return(true);
}
protected override QsiScriptType GetSuitableType(CommonScriptCursor cursor, IReadOnlyList <Token> tokens, Token[] leadingTokens)
{
if (leadingTokens.Length >= 1 && cursor.Value[leadingTokens[0].Span].EqualsIgnoreCase("VALUES"))
{
return(QsiScriptType.Select);
}
return(base.GetSuitableType(cursor, tokens, leadingTokens));
}
public bool Run(CommonScriptCursor cursor)
{
int index = cursor.Value.IndexOf(_keyword, cursor.Index, StringComparison.Ordinal);
if (index == -1)
{
return(false);
}
cursor.Index = index + _keyword.Length - 1;
return(true);
}
public bool Run(CommonScriptCursor cursor)
{
var match = _regex.Match(cursor.Value, cursor.Index);
if (!match.Success)
{
return(false);
}
cursor.Index = match.Index + match.Length - 1;
return(true);
}
public bool Run(CommonScriptCursor cursor)
{
for (int i = cursor.Index; i < cursor.Length; i++)
{
if (char.IsWhiteSpace(cursor.Value[i]))
{
continue;
}
cursor.Index = i - 1;
return(true);
}
cursor.Index = cursor.Length - 1;
return(true);
}
protected override QsiScriptType GetSuitableType(CommonScriptCursor cursor, IReadOnlyList <Token> tokens, Token[] leadingTokens)
{
if (leadingTokens.Length >= 1)
{
if (Exec.EqualsIgnoreCase(cursor.Value[leadingTokens[0].Span]))
{
return(QsiScriptType.Execute);
}
if (Merge.EqualsIgnoreCase(cursor.Value[leadingTokens[0].Span]))
{
return(QsiScriptType.MergeInto);
}
}
return(base.GetSuitableType(cursor, tokens, leadingTokens));
}
public bool Run(CommonScriptCursor cursor)
{
for (int i = cursor.Index; i < cursor.Length; i++)
{
var c = cursor.Value[i];
if ('A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' || c == '_')
{
continue;
}
cursor.Index = i - 1;
return(true);
}
cursor.Index = cursor.Length - 1;
return(true);
}
protected override bool TryParseToken(CommonScriptCursor cursor, out Token token)
{
if (!base.TryParseToken(cursor, out token))
{
return(false);
}
if (token.Type is TokenType.MultiLineComment or TokenType.SingeLineComment)
{
var(offset, length) = token.Span.GetOffsetAndLength(cursor.Length);
ReadOnlySpan <char> span = cursor.Value.AsSpan(offset, length);
if (ImpalaUtility.IsCommentPlanHint(span))
{
token = new Token(TokenType.Fragment, token.Span);
}
}
return(true);
}
