Antlr4.StringTemplate.TemplateGroupDirectory.LoadTemplateFile C# (CSharp) Method

        public virtual CompiledTemplate LoadTemplateFile(string prefix, string unqualifiedFileName)
        {
            if (Path.IsPathRooted(unqualifiedFileName))
                throw new ArgumentException();

            if (Verbose)
                Console.WriteLine("loadTemplateFile({0}) in groupdir from {1} prefix={2}", unqualifiedFileName, root, prefix);

            string templateName = Path.ChangeExtension(unqualifiedFileName, null);
            Uri f;
            try
            {
                f = new Uri(root.LocalPath + prefix + unqualifiedFileName);
            }
            catch (UriFormatException me)
            {
                ErrorManager.RuntimeError(null, ErrorType.INVALID_TEMPLATE_NAME, me, Path.Combine(root.LocalPath, unqualifiedFileName));
                return null;
            }

            ANTLRReaderStream fs = null;
            try
            {
                fs = new ANTLRReaderStream(new StreamReader(File.OpenRead(f.LocalPath), Encoding));
                fs.name = unqualifiedFileName;
            }
            catch (IOException)
            {
                if (Verbose)
                    Console.WriteLine("{0}/{1} doesn't exist", root, unqualifiedFileName);

                //errMgr.IOError(null, ErrorType.NO_SUCH_TEMPLATE, ioe, unqualifiedFileName);
                return null;
            }

            return LoadTemplateFile(prefix, unqualifiedFileName, fs);
        }