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public LoadTemplateFile ( string prefix, string unqualifiedFileName, ICharStream templateStream ) : |
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| prefix | string | |
| unqualifiedFileName | string | |
| templateStream | ICharStream | |
| return | ||
/** Import template files, directories, and group files.
* Priority is given to templates defined in the current group;
* this, in effect, provides inheritance. Polymorphism is in effect so
* that if an inherited template references template t() then we
* search for t() in the subgroup first.
*
* Templates are loaded on-demand from import dirs. Imported groups are
* loaded on-demand when searching for a template.
*
* The listener of this group is passed to the import group so errors
* found while loading imported element are sent to listener of this group.
*/
public virtual void ImportTemplates(IToken fileNameToken)
{
string fileName = fileNameToken.Text;
if (Verbose)
Console.WriteLine("ImportTemplates({0})", fileName);
// do nothing upon syntax error
if (fileName == null || fileName.Equals("<missing STRING>"))
return;
fileName = Utility.Strip(fileName, 1);
//Console.WriteLine("import {0}", fileName);
bool isGroupFile = fileName.EndsWith(GroupFileExtension);
bool isTemplateFile = fileName.EndsWith(TemplateFileExtension);
bool isGroupDir = !(isGroupFile || isTemplateFile);
TemplateGroup g = null;
// search path is: working dir, g.stg's dir, CLASSPATH
Uri thisRoot = RootDirUri;
Uri fileUnderRoot = null;
//Console.WriteLine("thisRoot={0}", thisRoot);
try
{
fileUnderRoot = new Uri(thisRoot + "/" + fileName);
}
catch (UriFormatException mfe)
{
ErrorManager.InternalError(null, string.Format("can't build URL for {0}/{1}", thisRoot, fileName), mfe);
return;
}
if (isTemplateFile)
{
g = new TemplateGroup();
g.Listener = this.Listener;
Uri fileURL = null;
if (File.Exists(fileUnderRoot.LocalPath))
fileURL = fileUnderRoot;
if (fileURL != null)
{
try
{
Stream s = File.OpenRead(fileURL.LocalPath);
ANTLRInputStream templateStream = new ANTLRInputStream(s);
templateStream.name = fileName;
CompiledTemplate code = g.LoadTemplateFile("/", fileName, templateStream);
if (code == null)
g = null;
}
catch (IOException ioe)
{
ErrorManager.InternalError(null, string.Format("can't read from {0}", fileURL), ioe);
g = null;
}
}
else
{
g = null;
}
}
else if (isGroupFile)
{
//System.out.println("look for fileUnderRoot: "+fileUnderRoot);
if (File.Exists(fileUnderRoot.LocalPath))
{
g = new TemplateGroupFile(fileUnderRoot, Encoding, delimiterStartChar, delimiterStopChar);
g.Listener = this.Listener;
}
else
{
g = new TemplateGroupFile(fileName, delimiterStartChar, delimiterStopChar);
g.Listener = this.Listener;
}
}
else if (isGroupDir)
{
// System.out.println("try dir "+fileUnderRoot);
if (Directory.Exists(fileUnderRoot.LocalPath))
{
g = new TemplateGroupDirectory(fileUnderRoot, Encoding, delimiterStartChar, delimiterStopChar);
g.Listener = this.Listener;
}
else
{
// try in CLASSPATH
// System.out.println("try dir in CLASSPATH "+fileName);
g = new TemplateGroupDirectory(fileName, delimiterStartChar, delimiterStopChar);
g.Listener = this.Listener;
}
}
if (g == null)
{
ErrorManager.CompiletimeError(ErrorType.CANT_IMPORT, null, fileNameToken, fileName);
}
else
{
ImportTemplates(g, true);
}
}