SrgsGrammarCompiler.cs source code in C# .NET

                        Code:
                         / Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Speech / Src / Recognition / SrgsGrammar / SrgsGrammarCompiler.cs / 1 / SrgsGrammarCompiler.cs
                        
                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: 
//
// History: 
//		6/1/2004	jeanfp		
//---------------------------------------------------------------------------

using System; 
using System.IO;
using System.Xml; 
using System.Speech.Internal; 
using System.Speech.Internal.SrgsCompiler;
 
namespace System.Speech.Recognition.SrgsGrammar
{

    ///  
    /// Compiles Xml Srgs data into a CFG
    ///  
 
    public static class SrgsGrammarCompiler
    { 
        //*******************************************************************
        //
        // Public Methods
        // 
        //*******************************************************************
 
        #region Public Methods 

        ///  
        /// Compiles a grammar to a file
        /// 
        /// 
        ///  
        static public void Compile (string inputPath, Stream outputStream)
        { 
            Helpers.ThrowIfEmptyOrNull (inputPath, "inputPath"); 
            Helpers.ThrowIfNull (outputStream, "outputStream");
 
            using (XmlTextReader reader = new XmlTextReader (new Uri (inputPath, UriKind.RelativeOrAbsolute).ToString ()))
            {
                SrgsCompiler.CompileStream (new XmlReader [] { reader }, null, outputStream, true, null, null, null);
            } 
        }
 
        ///  
        /// Compiles an Srgs documentto a file
        ///  
        /// 
        /// 
        static public void Compile (SrgsDocument srgsGrammar, Stream outputStream)
        { 
            Helpers.ThrowIfNull (srgsGrammar, "srgsGrammar");
            Helpers.ThrowIfNull (outputStream, "outputStream"); 
 
            SrgsCompiler.CompileStream (srgsGrammar, null, outputStream, true, null, null);
        } 

        /// 
        /// Compiles a grammar to a file
        ///  
        /// 
        ///  
        static public void Compile (XmlReader reader, Stream outputStream) 
        {
            Helpers.ThrowIfNull (reader, "reader"); 
            Helpers.ThrowIfNull (outputStream, "outputStream");

            SrgsCompiler.CompileStream (new XmlReader [] { reader }, null, outputStream, true, null, null, null);
        } 

#if !NO_STG 
 
        /// 
        /// Compiles a grammar to a file 
        /// 
        /// 
        /// 
        ///  
        /// 
        static public void CompileClassLibrary (string [] inputPaths, string outputPath, string [] referencedAssemblies, string keyFile) 
        { 
            Helpers.ThrowIfNull (inputPaths, "inputPaths");
            Helpers.ThrowIfEmptyOrNull (outputPath, "outputPath"); 

            XmlTextReader [] readers = new XmlTextReader [inputPaths.Length];
            try
            { 
                for (int iFile = 0; iFile < inputPaths.Length; iFile++)
                { 
                    if (inputPaths [iFile] == null) 
                    {
                        throw new ArgumentException (SR.Get (SRID.ArrayOfNullIllegal), "inputPaths"); 
                    }
                    readers [iFile] = new XmlTextReader (new Uri (inputPaths [iFile], UriKind.RelativeOrAbsolute).ToString ());
                }
                SrgsCompiler.CompileStream (readers, outputPath, null, false, null, referencedAssemblies, keyFile); 
            }
            finally 
            { 
                for (int iReader = 0; iReader < readers.Length; iReader++)
                { 
                    XmlTextReader srgsGrammar = readers [iReader];
                    if (srgsGrammar != null)
                    {
                        ((IDisposable) srgsGrammar).Dispose (); 
                    }
                } 
            } 
        }
 
        /// 
        /// Compiles an Srgs documentto a file
        /// 
        ///  
        /// 
        ///  
        ///  
        static public void CompileClassLibrary (SrgsDocument srgsGrammar, string outputPath, string [] referencedAssemblies, string keyFile)
        { 
            Helpers.ThrowIfNull (srgsGrammar, "srgsGrammar");
            Helpers.ThrowIfEmptyOrNull (outputPath, "outputPath");

            SrgsCompiler.CompileStream (srgsGrammar, outputPath, null, false, referencedAssemblies, keyFile); 
        }
 
        ///  
        /// Compiles a grammar to a file
        ///  
        /// 
        /// 
        /// 
        ///  
        static public void CompileClassLibrary (XmlReader reader, string outputPath, string [] referencedAssemblies, string keyFile)
        { 
            Helpers.ThrowIfNull (reader, "reader"); 
            Helpers.ThrowIfEmptyOrNull (outputPath, "outputPath");
 
            SrgsCompiler.CompileStream (new XmlReader [] { reader }, outputPath, null, false, null, referencedAssemblies, keyFile);
        }

#endif 

        #endregion 
 
        //********************************************************************
        // 
        // Internal Methods
        //
        //*******************************************************************
 
        #region Internal Methods
 
        // Decide if the input stream is a cfg. 
        // If not assume it's an xml grammar.
        // The stream parameter points to the start of the data on entry and is reset to that point on exit. 
        static private bool CheckIfCfg (Stream stream, out int cfgLength)
        {
            long initialPosition = stream.Position;
 
            bool isCfg = CfgGrammar.CfgSerializedHeader.IsCfg (stream, out cfgLength);
 
            // Reset stream position: 
            stream.Position = initialPosition;
            return isCfg; 
        }

        static internal void CompileXmlOrCopyCfg (
            Stream inputStream, 
            Stream outputStream,
            Uri orginalUri) 
        { 

            // Wrap stream in case Seek is not supported: 
            SeekableReadStream seekableInputStream = new SeekableReadStream (inputStream);

            // See if CFG or XML document:
            int cfgLength; 
            bool isCFG = CheckIfCfg (seekableInputStream, out cfgLength);
 
            seekableInputStream.CacheDataForSeeking = false; // Stop buffering data 

            if (isCFG) 
            {
                // Just copy the input to the output:
                // {We later check the header on the output stream - we could do it on the input stream but it may not be seekable}.
                Helpers.CopyStream (seekableInputStream, outputStream, cfgLength); 
            }
            else 
            { 
                // Else compile the Xml:
                SrgsCompiler.CompileStream (new XmlReader [] { new XmlTextReader (seekableInputStream) }, null, outputStream, true, orginalUri, null, null); 
            }
        }

        #endregion 

    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: 
//
// History: 
//		6/1/2004	jeanfp		
//---------------------------------------------------------------------------

using System; 
using System.IO;
using System.Xml; 
using System.Speech.Internal; 
using System.Speech.Internal.SrgsCompiler;
 
namespace System.Speech.Recognition.SrgsGrammar
{

    ///  
    /// Compiles Xml Srgs data into a CFG
    ///  
 
    public static class SrgsGrammarCompiler
    { 
        //*******************************************************************
        //
        // Public Methods
        // 
        //*******************************************************************
 
        #region Public Methods 

        ///  
        /// Compiles a grammar to a file
        /// 
        /// 
        ///  
        static public void Compile (string inputPath, Stream outputStream)
        { 
            Helpers.ThrowIfEmptyOrNull (inputPath, "inputPath"); 
            Helpers.ThrowIfNull (outputStream, "outputStream");
 
            using (XmlTextReader reader = new XmlTextReader (new Uri (inputPath, UriKind.RelativeOrAbsolute).ToString ()))
            {
                SrgsCompiler.CompileStream (new XmlReader [] { reader }, null, outputStream, true, null, null, null);
            } 
        }
 
        ///  
        /// Compiles an Srgs documentto a file
        ///  
        /// 
        /// 
        static public void Compile (SrgsDocument srgsGrammar, Stream outputStream)
        { 
            Helpers.ThrowIfNull (srgsGrammar, "srgsGrammar");
            Helpers.ThrowIfNull (outputStream, "outputStream"); 
 
            SrgsCompiler.CompileStream (srgsGrammar, null, outputStream, true, null, null);
        } 

        /// 
        /// Compiles a grammar to a file
        ///  
        /// 
        ///  
        static public void Compile (XmlReader reader, Stream outputStream) 
        {
            Helpers.ThrowIfNull (reader, "reader"); 
            Helpers.ThrowIfNull (outputStream, "outputStream");

            SrgsCompiler.CompileStream (new XmlReader [] { reader }, null, outputStream, true, null, null, null);
        } 

#if !NO_STG 
 
        /// 
        /// Compiles a grammar to a file 
        /// 
        /// 
        /// 
        ///  
        /// 
        static public void CompileClassLibrary (string [] inputPaths, string outputPath, string [] referencedAssemblies, string keyFile) 
        { 
            Helpers.ThrowIfNull (inputPaths, "inputPaths");
            Helpers.ThrowIfEmptyOrNull (outputPath, "outputPath"); 

            XmlTextReader [] readers = new XmlTextReader [inputPaths.Length];
            try
            { 
                for (int iFile = 0; iFile < inputPaths.Length; iFile++)
                { 
                    if (inputPaths [iFile] == null) 
                    {
                        throw new ArgumentException (SR.Get (SRID.ArrayOfNullIllegal), "inputPaths"); 
                    }
                    readers [iFile] = new XmlTextReader (new Uri (inputPaths [iFile], UriKind.RelativeOrAbsolute).ToString ());
                }
                SrgsCompiler.CompileStream (readers, outputPath, null, false, null, referencedAssemblies, keyFile); 
            }
            finally 
            { 
                for (int iReader = 0; iReader < readers.Length; iReader++)
                { 
                    XmlTextReader srgsGrammar = readers [iReader];
                    if (srgsGrammar != null)
                    {
                        ((IDisposable) srgsGrammar).Dispose (); 
                    }
                } 
            } 
        }
 
        /// 
        /// Compiles an Srgs documentto a file
        /// 
        ///  
        /// 
        ///  
        ///  
        static public void CompileClassLibrary (SrgsDocument srgsGrammar, string outputPath, string [] referencedAssemblies, string keyFile)
        { 
            Helpers.ThrowIfNull (srgsGrammar, "srgsGrammar");
            Helpers.ThrowIfEmptyOrNull (outputPath, "outputPath");

            SrgsCompiler.CompileStream (srgsGrammar, outputPath, null, false, referencedAssemblies, keyFile); 
        }
 
        ///  
        /// Compiles a grammar to a file
        ///  
        /// 
        /// 
        /// 
        ///  
        static public void CompileClassLibrary (XmlReader reader, string outputPath, string [] referencedAssemblies, string keyFile)
        { 
            Helpers.ThrowIfNull (reader, "reader"); 
            Helpers.ThrowIfEmptyOrNull (outputPath, "outputPath");
 
            SrgsCompiler.CompileStream (new XmlReader [] { reader }, outputPath, null, false, null, referencedAssemblies, keyFile);
        }

#endif 

        #endregion 
 
        //********************************************************************
        // 
        // Internal Methods
        //
        //*******************************************************************
 
        #region Internal Methods
 
        // Decide if the input stream is a cfg. 
        // If not assume it's an xml grammar.
        // The stream parameter points to the start of the data on entry and is reset to that point on exit. 
        static private bool CheckIfCfg (Stream stream, out int cfgLength)
        {
            long initialPosition = stream.Position;
 
            bool isCfg = CfgGrammar.CfgSerializedHeader.IsCfg (stream, out cfgLength);
 
            // Reset stream position: 
            stream.Position = initialPosition;
            return isCfg; 
        }

        static internal void CompileXmlOrCopyCfg (
            Stream inputStream, 
            Stream outputStream,
            Uri orginalUri) 
        { 

            // Wrap stream in case Seek is not supported: 
            SeekableReadStream seekableInputStream = new SeekableReadStream (inputStream);

            // See if CFG or XML document:
            int cfgLength; 
            bool isCFG = CheckIfCfg (seekableInputStream, out cfgLength);
 
            seekableInputStream.CacheDataForSeeking = false; // Stop buffering data 

            if (isCFG) 
            {
                // Just copy the input to the output:
                // {We later check the header on the output stream - we could do it on the input stream but it may not be seekable}.
                Helpers.CopyStream (seekableInputStream, outputStream, cfgLength); 
            }
            else 
            { 
                // Else compile the Xml:
                SrgsCompiler.CompileStream (new XmlReader [] { new XmlTextReader (seekableInputStream) }, null, outputStream, true, orginalUri, null, null); 
            }
        }

        #endregion 

    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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SrgsGrammarCompiler.cs source code in C# .NET

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