using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?:\b(?:(kilogram\.*s*\.*|kg\.*s*\.*)(?:[^[:alnum:]])*)(?:\s*weight\s*)*(?:\s*is\s*|\s*are\s*)*)\W*([\d\.,]*\d+\b)|(?:(?:[\s\.]?|^)([\d\.,]*\d+)\W*(kilogram\.*s*\.*|kg\.*s*\.*)\b)";
string input = @"15kilograms fs s
kg 10 fe
something 10.5 kg-fef
11.55kg gfre
11.55-kg gfre
11.55 kg gfre
kg 11.25 gre
efewf kg 11 fweew
ewsfewf kg
55 few
kg-55.55 dwd
eeewegv kg 55.55 ee
fewfewff 10
kg feeee
smth. .15kg ewfcwe
something kilogram weight is 15.5
";
RegexOptions options = RegexOptions.Multiline;
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