/**
* ruleForJSGF
*/
public static JSGFRule RuleForJSGF(String text)
{
JSGFRule r = null;
try
{
StringReader sread = new StringReader(text);
if (_parser == null)
{
_parser = new JSGFParser(sread);
}
else
{
_parser.ReInit(sread);
}
r = _parser.Alternatives();
// Console.WriteLine("JSGF Parser Version " + version
// + ": JSGF RHS parsed successfully.");
}
catch (ParseException e)
{
Console.WriteLine("JSGF Parser Version " + Version + ": Encountered errors during parse.");
}
return(r);
}
/**
* newGrammarFromJSGF - Once JavaCC supports Readers we will change this
*/
public static JSGFRuleGrammar NewGrammarFromJSGF(Stream i, JSGFRuleGrammarFactory factory)
{
JSGFRuleGrammar grammar = null;
if (_parser == null)
{
_parser = new JSGFParser(i);
}
else
{
_parser.ReInit(i);
}
try
{
grammar = _parser.GrammarUnit(factory);
return(grammar);
}
catch (ParseException e)
{
Token etoken = e.CurrentToken;
JSGFGrammarParseException ge = new JSGFGrammarParseException(etoken.BeginLine, etoken.BeginColumn, "Grammar Error", e.Message);
throw ge;
}
}
// This main method simply checks the syntax of a jsgf Grammar
//
public static void Main(String[] args)
{
if (args.Length == 0)
{
Console.WriteLine("JSGF Parser Version " + Version + ": Reading from standard input . . .");
_parser = new JSGFParser(Console.In);
}
else if (args.Length > 0)
{
Console.WriteLine("JSGF Parser Version " + Version + ": Reading from file " + args[0] + " . . .");
try
{
FileInfo codeBase = null;
String path = Directory.GetCurrentDirectory() + "/" + args[0];
try
{
codeBase = new FileInfo(path);
}
catch (UriFormatException e)
{
Console.WriteLine("Could not get URL for current directory " + e);
return;
}
BufferedStream i = new BufferedStream(codeBase.OpenRead(), 256);
JSGFEncoding encoding = GetJSGFEncoding(i);
TextReader rdr;
if ((encoding != null) && (encoding.Encoding != null))
{
Console.WriteLine("Grammar Character Encoding \"" + encoding.Encoding + "\"");
rdr = new StreamReader(i, encoding.GetEncoding);
}
else
{
if (encoding == null)
{
Console.WriteLine("WARNING: Grammar missing self identifying header");
}
rdr = new StreamReader(i);
}
_parser = new JSGFParser(rdr);
}
catch (Exception e)
{
Console.WriteLine("JSGF Parser Version " + Version + ": File " + args[0] + " not found.");
return;
}
}
else
{
Console.WriteLine("JSGF Parser Version " + Version + ": Usage is one of:");
Console.WriteLine(" java JSGFParser < inputfile");
Console.WriteLine("OR");
Console.WriteLine(" java JSGFParser inputfile");
return;
}
try
{
_parser.GrammarUnit(new JSGFRuleGrammarFactory(new JSGFRuleGrammarManager()));
Console.WriteLine("JSGF Parser Version " + Version + ": JSGF Grammar parsed successfully.");
}
catch (ParseException e)
{
Console.WriteLine("JSGF Parser Version " + Version + ": Encountered errors during parse." + e.Message);
}
}