Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / Serialization / CodeIdentifier.cs / 1 / CodeIdentifier.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace System.Xml.Serialization { using System; using System.Text; using System.Collections; using System.IO; using System.Globalization; using System.Diagnostics; using System.CodeDom; using System.CodeDom.Compiler; using Microsoft.CSharp; ////// /// /// public class CodeIdentifier { internal static CodeDomProvider csharp = new CSharpCodeProvider(); internal const int MaxIdentifierLength = 511; [Obsolete("This class should never get constructed as it contains only static methods.")] public CodeIdentifier() { } ///[To be supplied.] ////// /// public static string MakePascal(string identifier) { identifier = MakeValid(identifier); if (identifier.Length <= 2) return identifier.ToUpper(CultureInfo.InvariantCulture); else if (char.IsLower(identifier[0])) return char.ToUpper(identifier[0], CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture) + identifier.Substring(1); else return identifier; } ///[To be supplied.] ////// /// public static string MakeCamel(string identifier) { identifier = MakeValid(identifier); if (identifier.Length <= 2) return identifier.ToLower(CultureInfo.InvariantCulture); else if (char.IsUpper(identifier[0])) return char.ToLower(identifier[0], CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture) + identifier.Substring(1); else return identifier; } ///[To be supplied.] ////// /// public static string MakeValid(string identifier) { StringBuilder builder = new StringBuilder(); for (int i = 0; i < identifier.Length && builder.Length < MaxIdentifierLength; i++) { char c = identifier[i]; if (IsValid(c)) { if (builder.Length == 0 && !IsValidStart(c)) { builder.Append("Item"); } builder.Append(c); } } if (builder.Length == 0) return "Item"; return builder.ToString(); } internal static string MakeValidInternal(string identifier) { if (identifier.Length > 30) { return "Item"; } return MakeValid(identifier); } static bool IsValidStart(char c) { // the given char is already a valid name character #if DEBUG // use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe if (!IsValid(c)) throw new ArgumentException(Res.GetString(Res.XmlInternalErrorDetails, "Invalid identifier character " + ((Int16)c).ToString(CultureInfo.InvariantCulture)), "c"); #endif // First char cannot be a number if (Char.GetUnicodeCategory(c) == UnicodeCategory.DecimalDigitNumber) return false; return true; } static bool IsValid(char c) { UnicodeCategory uc = Char.GetUnicodeCategory(c); // each char must be Lu, Ll, Lt, Lm, Lo, Nd, Mn, Mc, Pc // switch (uc) { case UnicodeCategory.UppercaseLetter: // Lu case UnicodeCategory.LowercaseLetter: // Ll case UnicodeCategory.TitlecaseLetter: // Lt case UnicodeCategory.ModifierLetter: // Lm case UnicodeCategory.OtherLetter: // Lo case UnicodeCategory.DecimalDigitNumber: // Nd case UnicodeCategory.NonSpacingMark: // Mn case UnicodeCategory.SpacingCombiningMark: // Mc case UnicodeCategory.ConnectorPunctuation: // Pc break; case UnicodeCategory.LetterNumber: case UnicodeCategory.OtherNumber: case UnicodeCategory.EnclosingMark: case UnicodeCategory.SpaceSeparator: case UnicodeCategory.LineSeparator: case UnicodeCategory.ParagraphSeparator: case UnicodeCategory.Control: case UnicodeCategory.Format: case UnicodeCategory.Surrogate: case UnicodeCategory.PrivateUse: case UnicodeCategory.DashPunctuation: case UnicodeCategory.OpenPunctuation: case UnicodeCategory.ClosePunctuation: case UnicodeCategory.InitialQuotePunctuation: case UnicodeCategory.FinalQuotePunctuation: case UnicodeCategory.OtherPunctuation: case UnicodeCategory.MathSymbol: case UnicodeCategory.CurrencySymbol: case UnicodeCategory.ModifierSymbol: case UnicodeCategory.OtherSymbol: case UnicodeCategory.OtherNotAssigned: return false; default: #if DEBUG // use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe throw new ArgumentException(Res.GetString(Res.XmlInternalErrorDetails, "Unhandled category " + uc), "c"); #else return false; #endif } return true; } internal static void CheckValidIdentifier(string ident) { if (!CodeGenerator.IsValidLanguageIndependentIdentifier(ident)) throw new ArgumentException(Res.GetString(Res.XmlInvalidIdentifier, ident), "ident"); } internal static string GetCSharpName(string name) { // return EscapeKeywords(name.Replace('+', '.'), csharp); } static int GetCSharpName(Type t, Type[] parameters, int index, StringBuilder sb) { if (t.DeclaringType != null && t.DeclaringType != t) { index = GetCSharpName(t.DeclaringType, parameters, index, sb); sb.Append("."); } string name = t.Name; int nameEnd = name.IndexOf('`'); if (nameEnd < 0) { nameEnd = name.IndexOf('!'); } if (nameEnd > 0) { EscapeKeywords(name.Substring(0, nameEnd), csharp, sb); sb.Append("<"); int arguments = Int32.Parse(name.Substring(nameEnd+1), CultureInfo.InvariantCulture) + index; for (; index < arguments; index++) { sb.Append(GetCSharpName(parameters[index])); if (index < arguments -1) { sb.Append(","); } } sb.Append(">"); } else { EscapeKeywords(name, csharp, sb); } return index; } internal static string GetCSharpName(Type t) { int rank = 0; while (t.IsArray) { t = t.GetElementType(); rank++; } StringBuilder sb = new StringBuilder(); sb.Append("global::"); string ns = t.Namespace; if (ns != null && ns.Length > 0) { string[] parts = ns.Split(new char[] {'.'}); for (int i = 0; i < parts.Length; i++) { EscapeKeywords(parts[i], csharp, sb); sb.Append("."); } } Type[] arguments = t.IsGenericType || t.ContainsGenericParameters ? t.GetGenericArguments() : new Type[0]; GetCSharpName(t, arguments, 0, sb); for (int i = 0; i < rank; i++) { sb.Append("[]"); } return sb.ToString(); } // /* internal static string GetTypeName(string name, CodeDomProvider codeProvider) { return codeProvider.GetTypeOutput(new CodeTypeReference(name)); } */ static void EscapeKeywords(string identifier, CodeDomProvider codeProvider, StringBuilder sb) { if (identifier == null || identifier.Length == 0) return; string originalIdentifier = identifier; int arrayCount = 0; while (identifier.EndsWith("[]", StringComparison.Ordinal)) { arrayCount++; identifier = identifier.Substring(0, identifier.Length - 2); } if (identifier.Length > 0) { CheckValidIdentifier(identifier); identifier = codeProvider.CreateEscapedIdentifier(identifier); sb.Append(identifier); } for (int i = 0; i < arrayCount; i++) { sb.Append("[]"); } } static string EscapeKeywords(string identifier, CodeDomProvider codeProvider) { if (identifier == null || identifier.Length == 0) return identifier; string originalIdentifier = identifier; string[] names = identifier.Split(new char[] {'.', ',', '<', '>'}); StringBuilder sb = new StringBuilder(); int separator = -1; for (int i = 0; i < names.Length; i++) { if (separator >= 0) { sb.Append(originalIdentifier.Substring(separator, 1)); } separator++; separator += names[i].Length; string escapedName = names[i].Trim(); EscapeKeywords(escapedName, codeProvider, sb); } if (sb.Length != originalIdentifier.Length) return sb.ToString(); return originalIdentifier; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.[To be supplied.] ///
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