using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
class ExtractAllSubstringsBetweenSingleQuotationMarks
{
static List<string> ExtractSubstrings(string s)
{
// Regular expression pattern to find substrings between single quotation marks
string pattern = @"'(.*?)'";
// Find all matches in the input string
MatchCollection matches = Regex.Matches(s, pattern);
List<string> substrings = new List<string>();
foreach (Match match in matches) {
substrings.Add(match.Groups[1].Value);
}
if (substrings.Count == 0) {
return new List<string>();
}
return substrings;
}
static void Main()
{
string s = "C# 'CSharp' is a 'general-purpose' 'high-level' programming language";
List<string> result = ExtractSubstrings(s);
Console.WriteLine(string.Join(", ", result));
}
}
/*
run:
CSharp, general-purpose, high-level
*/
