CqlWriter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / CqlGeneration / CqlWriter.cs / 1305376 / CqlWriter.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System.Text.RegularExpressions; 
using System.Text;
using System.Data.Common.Utils;
using System.Data.Mapping.ViewGeneration.Utils;
using System.Data.Metadata.Edm; 

namespace System.Data.Mapping.ViewGeneration.CqlGeneration 
{ 

    // This class contains helper methods needed for generating Cql 
    internal static class CqlWriter
    {

        #region Fields 
        private static readonly Regex s_wordIdentifierRegex = new Regex(@"^[_A-Za-z]\w*$", RegexOptions.ECMAScript | RegexOptions.Compiled);
        #endregion 
 
        #region Helper Methods
        // effects: Given a block name and a field in it -- returns a string 
        // of form "blockName.field". Does not perform any escaping
        internal static string GetQualifiedName(string blockName, string field)
        {
            string result = StringUtil.FormatInvariant("{0}.{1}", blockName, field); 
            return result;
        } 
 
        // effects: Modifies builder to contain an escaped version of type's name as "[namespace.typename]"
        internal static void AppendEscapedTypeName(StringBuilder builder, EdmType type) 
        {
            AppendEscapedName(builder, GetQualifiedName(type.NamespaceName, type.Name));
        }
 
        // effects: Modifies builder to contain an escaped version of "name1.name2" as "[name1].[name2]"
        internal static void AppendEscapedQualifiedName(StringBuilder builder, string name1, string name2) 
        { 
            AppendEscapedName(builder, name1);
            builder.Append('.'); 
            AppendEscapedName(builder, name2);
        }

        // effects: Modifies builder to contain an escaped version of "name" 
        internal static void AppendEscapedName(StringBuilder builder, string name)
        { 
            if (s_wordIdentifierRegex.IsMatch(name) && false == ExternalCalls.IsReservedKeyword(name)) 
            {
                // We do not need to escape the name if it is a simple name and it is not a keyword 
                builder.Append(name);
            }
            else
            { 
                string newName = name.Replace("]", "]]");
                builder.Append('[') 
                       .Append(newName) 
                       .Append(']');
            } 
        }
        #endregion
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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