OfficeDevPnP.Core.Framework.Provisioning.ObjectHandlers.TokenParser.ParseString C# (CSharp) Method

        public string ParseString(string input)
        {
            return ParseString(input, null);
        }

        public override TokenParser ProvisionObjects(Web web, ProvisioningTemplate template, TokenParser parser, ProvisioningTemplateApplyingInformation applyingInformation)
        {
            using (var scope = new PnPMonitoredScope(this.Name))
            {
                if (template.ComposedLook != null &&
                    !template.ComposedLook.Equals(ComposedLook.Empty))
                {
                    bool executeQueryNeeded = false;
                    if (executeQueryNeeded)
                    {
                        web.Context.ExecuteQueryRetry();
                    }

                    if (String.IsNullOrEmpty(template.ComposedLook.ColorFile) &&
                        String.IsNullOrEmpty(template.ComposedLook.FontFile) &&
                        String.IsNullOrEmpty(template.ComposedLook.BackgroundFile))
                    {
                        // Apply OOB theme
                        web.SetComposedLookByUrl(template.ComposedLook.Name);
                    }
                    else
                    {
                        // Apply custom theme
                        string colorFile = null;
                        if (!string.IsNullOrEmpty(template.ComposedLook.ColorFile))
                        {
                            colorFile = parser.ParseString(template.ComposedLook.ColorFile);
                        }
                        string backgroundFile = null;
                        if (!string.IsNullOrEmpty(template.ComposedLook.BackgroundFile))
                        {
                            backgroundFile = parser.ParseString(template.ComposedLook.BackgroundFile);
                        }
                        string fontFile = null;
                        if (!string.IsNullOrEmpty(template.ComposedLook.FontFile))
                        {
                            fontFile = parser.ParseString(template.ComposedLook.FontFile);
                        }

                        string masterUrl = null;
                        if (template.WebSettings != null && !string.IsNullOrEmpty(template.WebSettings.MasterPageUrl))
                        {
                            masterUrl = parser.ParseString(template.WebSettings.MasterPageUrl);
                        }
                        web.CreateComposedLookByUrl(template.ComposedLook.Name, colorFile, fontFile, backgroundFile, masterUrl);
                        web.SetComposedLookByUrl(template.ComposedLook.Name, colorFile, fontFile, backgroundFile, masterUrl);

                        var composedLookJson = JsonConvert.SerializeObject(template.ComposedLook);

                        web.SetPropertyBagValue("_PnP_ProvisioningTemplateComposedLookInfo", composedLookJson);
                    }

                    // Persist composed look info in property bag

                }
            }
            return parser;
        }