Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Common / EntitySql / Identifier.cs / 4 / Identifier.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backup [....] //--------------------------------------------------------------------- namespace System.Data.Common.EntitySql { using System; using System.Globalization; using System.Collections; using System.Collections.Generic; using System.Diagnostics; using System.Text; ////// represents identifier /// internal sealed class Identifier : Expr { private string _name; private bool _isEscaped; ////// initializes identifier /// /// /// /// /// internal Identifier( string symbol, bool isEscaped, string query, int inputPos ) : base(query, inputPos) { ValidateIdentifier(symbol, isEscaped); _name = symbol; _isEscaped = isEscaped; } ////// returns identifier name (without escaping chars if escaped id) /// internal string Name { get { return (IsEscaped) ? _name.Substring(1, _name.Length - 2) : _name; } } ////// returns original identifier name /// internal string OriginalName { get { return _name; } } ////// returns if an identifier is escaped /// internal bool IsEscaped { get { return _isEscaped; } } private void ValidateIdentifier( string symbol, bool isEscaped ) { if (isEscaped) { Debug.Assert(!String.IsNullOrEmpty(symbol), "!String.IsNullOrEmpty(symbol)"); if (symbol[0] != '[' || symbol[symbol.Length - 1] != ']') { throw EntityUtil.EntitySqlError(this.ErrCtx, System.Data.Entity.Strings.InvalidEscapedIdentifier(symbol)); } } else { // this is a special case since our language grammar does NOT allow [] to be used as // part of identifiers, but it is needed for Byte[] as type identifier. The only case when // [] will show up at the end as in 'System.Byte[]' if (symbol.Length > 1 && symbol[symbol.Length - 2] == '[' && symbol[symbol.Length - 1] == ']') { symbol = symbol.Substring(0, symbol.Length - 2); } bool isIdentifierASCII = true; if (!CqlLexer.IsLetterOrDigitOrUnderscore(symbol, out isIdentifierASCII)) { if (isIdentifierASCII) { throw EntityUtil.EntitySqlError(this.ErrCtx, System.Data.Entity.Strings.InvalidSimpleIdentifier(symbol)); } else { throw EntityUtil.EntitySqlError(this.ErrCtx, System.Data.Entity.Strings.InvalidSimpleIdentifierNonASCII(symbol)); } } } } } ////// represents dotted identifier /// internal sealed class DottedIdentifier : Expr { private List_identifiers = new List (); private string[] _names; private string _fullName; /// /// intializes singleton dot identifier => simple id /// /// internal DottedIdentifier( Identifier id ) { _identifiers.Add(id); _names = new string[] { id.Name }; _fullName = id.Name; ErrCtx = id.ErrCtx; } ////// intializes dot identifier from dot expression /// /// internal DottedIdentifier( DotExpr dotExpr ) { _names = dotExpr.Names; _fullName = dotExpr.FullName; Expr expr = dotExpr; while (expr is DotExpr) { DotExpr newDotExpr = (DotExpr)expr; _identifiers.Add(newDotExpr.Identifier); expr = newDotExpr.Left; } _identifiers.Add((Identifier)expr); _identifiers.Reverse(); ErrCtx = expr.ErrCtx; ErrCtx.ErrorContextInfo = EntityRes.CtxIdentifier; } ////// returns fqn as single string /// internal string FullName { get { return _fullName; } } ////// returns array of names /// internal string[] Names { get { return _names; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backup [....] //--------------------------------------------------------------------- namespace System.Data.Common.EntitySql { using System; using System.Globalization; using System.Collections; using System.Collections.Generic; using System.Diagnostics; using System.Text; ////// represents identifier /// internal sealed class Identifier : Expr { private string _name; private bool _isEscaped; ////// initializes identifier /// /// /// /// /// internal Identifier( string symbol, bool isEscaped, string query, int inputPos ) : base(query, inputPos) { ValidateIdentifier(symbol, isEscaped); _name = symbol; _isEscaped = isEscaped; } ////// returns identifier name (without escaping chars if escaped id) /// internal string Name { get { return (IsEscaped) ? _name.Substring(1, _name.Length - 2) : _name; } } ////// returns original identifier name /// internal string OriginalName { get { return _name; } } ////// returns if an identifier is escaped /// internal bool IsEscaped { get { return _isEscaped; } } private void ValidateIdentifier( string symbol, bool isEscaped ) { if (isEscaped) { Debug.Assert(!String.IsNullOrEmpty(symbol), "!String.IsNullOrEmpty(symbol)"); if (symbol[0] != '[' || symbol[symbol.Length - 1] != ']') { throw EntityUtil.EntitySqlError(this.ErrCtx, System.Data.Entity.Strings.InvalidEscapedIdentifier(symbol)); } } else { // this is a special case since our language grammar does NOT allow [] to be used as // part of identifiers, but it is needed for Byte[] as type identifier. The only case when // [] will show up at the end as in 'System.Byte[]' if (symbol.Length > 1 && symbol[symbol.Length - 2] == '[' && symbol[symbol.Length - 1] == ']') { symbol = symbol.Substring(0, symbol.Length - 2); } bool isIdentifierASCII = true; if (!CqlLexer.IsLetterOrDigitOrUnderscore(symbol, out isIdentifierASCII)) { if (isIdentifierASCII) { throw EntityUtil.EntitySqlError(this.ErrCtx, System.Data.Entity.Strings.InvalidSimpleIdentifier(symbol)); } else { throw EntityUtil.EntitySqlError(this.ErrCtx, System.Data.Entity.Strings.InvalidSimpleIdentifierNonASCII(symbol)); } } } } } ////// represents dotted identifier /// internal sealed class DottedIdentifier : Expr { private List_identifiers = new List (); private string[] _names; private string _fullName; /// /// intializes singleton dot identifier => simple id /// /// internal DottedIdentifier( Identifier id ) { _identifiers.Add(id); _names = new string[] { id.Name }; _fullName = id.Name; ErrCtx = id.ErrCtx; } ////// intializes dot identifier from dot expression /// /// internal DottedIdentifier( DotExpr dotExpr ) { _names = dotExpr.Names; _fullName = dotExpr.FullName; Expr expr = dotExpr; while (expr is DotExpr) { DotExpr newDotExpr = (DotExpr)expr; _identifiers.Add(newDotExpr.Identifier); expr = newDotExpr.Left; } _identifiers.Add((Identifier)expr); _identifiers.Reverse(); ErrCtx = expr.ErrCtx; ErrCtx.ErrorContextInfo = EntityRes.CtxIdentifier; } ////// returns fqn as single string /// internal string FullName { get { return _fullName; } } ////// returns array of names /// internal string[] Names { get { return _names; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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