static bool ComplainExcessAttributes(Directive dt, ParsedTemplate pt)
{
if (dt.Attributes.Count == 0)
{
return(false);
}
StringBuilder sb = new StringBuilder("Unknown attributes ");
bool first = true;
foreach (string key in dt.Attributes.Keys)
{
if (!first)
{
sb.Append(", ");
}
else
{
first = false;
}
sb.Append(key);
}
sb.Append(" found in ");
sb.Append(dt.Name);
sb.Append(" directive.");
pt.LogWarning(sb.ToString(), dt.StartLocation);
return(false);
}
public static TemplateSettings GetSettings(ITextTemplatingEngineHost host, ParsedTemplate pt)
{
string language = null;
TemplateSettings settings = new TemplateSettings();
foreach (Directive dt in pt.Directives)
{
switch (dt.Name)
{
case "template":
string val = dt.Extract("language");
if (val != null)
{
language = val;
}
val = dt.Extract("debug");
if (val != null)
{
settings.Debug = string.Compare(val, "true", StringComparison.OrdinalIgnoreCase) == 0;
}
val = dt.Extract("inherits");
if (val != null)
{
settings.Inherits = val;
}
val = dt.Extract("culture");
if (val != null)
{
System.Globalization.CultureInfo culture = System.Globalization.CultureInfo.GetCultureInfo(val);
if (culture == null)
{
pt.LogWarning("Could not find culture '" + val + "'", dt.StartLocation);
}
else
{
settings.Culture = culture;
}
}
val = dt.Extract("hostspecific");
if (val != null)
{
settings.HostSpecific = string.Compare(val, "true", StringComparison.OrdinalIgnoreCase) == 0;
}
break;
case "assembly":
string name = dt.Extract("name");
if (name == null)
{
pt.LogError("Missing name attribute in assembly directive", dt.StartLocation);
}
else
{
settings.Assemblies.Add(name);
}
break;
case "import":
string namespac = dt.Extract("namespace");
if (namespac == null)
{
pt.LogError("Missing namespace attribute in import directive", dt.StartLocation);
}
else
{
settings.Imports.Add(namespac);
}
break;
case "output":
settings.Extension = dt.Extract("extension");
string encoding = dt.Extract("encoding");
if (encoding != null)
{
settings.Encoding = Encoding.GetEncoding("encoding");
}
break;
case "include":
throw new InvalidOperationException("Include is handled in the parser");
default:
throw new NotImplementedException("Custom directives are not supported yet");
}
ComplainExcessAttributes(dt, pt);
}
if (settings.Name == null)
{
settings.Name = string.Format("GeneratedTextTransformation{0:x}", new System.Random().Next());
}
if (settings.Namespace == null)
{
settings.Namespace = typeof(TextTransformation).Namespace;
}
//resolve the CodeDOM provider
if (String.IsNullOrEmpty(language))
{
pt.LogError("No language was specified for the template");
return(settings);
}
if (language == "C#v3.5")
{
Dictionary <string, string> providerOptions = new Dictionary <string, string> ();
providerOptions.Add("CompilerVersion", "v3.5");
settings.Provider = new CSharpCodeProvider(providerOptions);
}
else
{
settings.Provider = CodeDomProvider.CreateProvider(language);
}
if (settings.Provider == null)
{
pt.LogError("A provider could not be found for the language '" + language + "'");
return(settings);
}
return(settings);
}