using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?:SELECT\s++(?=(?:[#\w,`.]++\s++)+)|(?!^)\G\s*+,\s*+(?:`?+\s*+[#\w]++\s*+`?+\s*+\.\s*+)?+`?+\s*+)(\w++)`?+(?:\s++as\s++[^,\s]++)?+";
string input = @"SELECT columnA, columnB as foo, table.column8, table.column3 as foo,
`column7`, `column4` as foo, `table`.`columnZ`, `#__table`.`columnF` as foo FROM datable where
Select column1, column2 From table
select column0 from table";
RegexOptions options = RegexOptions.IgnoreCase;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx