Bloom.Book.HtmlDom.FindFontsUsedInCss C# (CSharp) Method

        public static void FindFontsUsedInCss(string cssContent, HashSet<string> result, bool includeFallbackFonts)
        {
            var findFF = new Regex("font-family:\\s*([^;}]*)[;}]");
            foreach(Match match in findFF.Matches(cssContent))
            {
                foreach(var family in match.Groups[1].Value.Split(','))
                {
                    var name = family.Trim();
                    // Strip matched quotes
                    if(name[0] == '\'' || name[0] == '"' && name[0] == name[name.Length - 1])
                        name = name.Substring(1, name.Length - 2);
                    result.Add(name);
                    if(!includeFallbackFonts)
                        break;
                }
            }
        }