public int keywordFromText(string name)
{
// (My)SQL only uses ASCII chars for keywords so we can do a simple downcase here for comparison.
string transformed;
transformed = name.ToLower();
if (!MySQLSymbolInfo.isKeyword(transformed, MySQLSymbolInfo.numberToVersion(serverVersion)))
{
return(int.MaxValue - 1); // INVALID_INDEX alone can be interpreted as EOF.
}
// Generate string -> enum value map, if not yet done.
if (!_symbols.Any())
{
Vocabulary vocabulary = this.Vocabulary as Vocabulary;
var max = vocabulary.getMaxTokenType();
for (var i = 0; i <= max; ++i)
{
_symbols[vocabulary.GetSymbolicName(i)] = i;
}
}
// Here we know for sure we got a keyword.
bool found = _symbols.TryGetValue(transformed, out int symbol);
if (!found)
{
return(int.MaxValue - 1);
}
return(symbol);
}
public bool isIdentifier(int type)
{
if ((type == MySQLLexer.IDENTIFIER) || (type == MySQLLexer.BACK_TICK_QUOTED_ID))
{
return(true);
}
// Double quoted text represents identifiers only if the ANSI QUOTES sql mode is active.
if (((sqlMode & SqlMode.AnsiQuotes) != 0) && (type == MySQLLexer.DOUBLE_QUOTED_TEXT))
{
return(true);
}
string symbol = Vocabulary.GetSymbolicName(type);
if (!string.IsNullOrEmpty(symbol) && !MySQLSymbolInfo.isReservedKeyword(symbol, MySQLSymbolInfo.numberToVersion(serverVersion)))
{
return(true);
}
return(false);
}