/** Load template stream into this group. unqualifiedFileName is "a.st".
* The prefix is path from group root to unqualifiedFileName like /subdir
* if file is in /subdir/a.st
*/
public virtual CompiledTemplate LoadTemplateFile(string prefix, string unqualifiedFileName, ICharStream templateStream)
{
GroupLexer lexer = new GroupLexer(templateStream);
CommonTokenStream tokens = new CommonTokenStream(lexer);
GroupParser parser = new GroupParser(tokens);
parser.Group = this;
lexer.group = this;
try
{
parser.templateDef(prefix);
}
catch (RecognitionException re)
{
ErrorManager.GroupSyntaxError(ErrorType.SYNTAX_ERROR, unqualifiedFileName, re, re.Message);
}
string templateName = Path.GetFileNameWithoutExtension(unqualifiedFileName);
if (!string.IsNullOrEmpty(prefix))
templateName = prefix + templateName;
CompiledTemplate impl = RawGetTemplate(templateName);
impl.Prefix = prefix;
return impl;
}
public override void Load()
{
if (alreadyLoaded)
return;
alreadyLoaded = true;
GroupParser parser = null;
try
{
ANTLRStringStream fs = new ANTLRStringStream(text);
fs.name = sourceName;
GroupLexer lexer = new GroupLexer(fs);
CommonTokenStream tokens = new CommonTokenStream(lexer);
parser = new GroupParser(tokens);
// no prefix since this group file is the entire group, nothing lives
// beneath it.
parser.group(this, "/");
}
catch (Exception e)
{
ErrorManager.IOError(null, ErrorType.CANT_LOAD_GROUP_FILE, e, FileName);
}
}
/** Load a group file with full path fileName; it's relative to root by prefix. */
public virtual void LoadGroupFile(string prefix, string fileName)
{
if (Verbose)
{
Console.Out.WriteLine("{0}.LoadGroupFile(prefix={1}, fileName={2})",
GetType().FullName, prefix, fileName);
}
GroupParser parser = null;
try
{
Uri f = new Uri(fileName);
ANTLRReaderStream fs = new ANTLRReaderStream(new System.IO.StreamReader(f.LocalPath, Encoding));
var timer = System.Diagnostics.Stopwatch.StartNew();
string cachePath = Path.Combine(Path.GetTempPath(), "ST4TemplateCache");
if (EnableCache && TryLoadGroupFromCache(cachePath, prefix, fileName))
{
System.Diagnostics.Debug.WriteLine(string.Format("Successfully loaded the group from cache {0} in {1}ms.", Name, timer.ElapsedMilliseconds));
}
else
{
GroupLexer lexer = new GroupLexer(fs);
fs.name = fileName;
CommonTokenStream tokens = new CommonTokenStream(lexer);
parser = new GroupParser(tokens);
parser.group(this, prefix);
System.Diagnostics.Debug.WriteLine(string.Format("Successfully loaded the group {0} in {1}ms.", Name, timer.ElapsedMilliseconds));
if (EnableCache)
CacheCompiledGroup(cachePath, prefix, fileName, File.GetLastWriteTimeUtc(f.LocalPath));
}
}
catch (Exception e)
{
e.PreserveStackTrace();
if (e.IsCritical())
throw;
ErrorManager.IOError(null, ErrorType.CANT_LOAD_GROUP_FILE, e, fileName);
}
}
