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/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / XmlQueryCardinality.cs / 1305376 / XmlQueryCardinality.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System.Diagnostics; using System.IO; namespace System.Xml.Xsl { ////// Cardinality of part of XmlQueryType /// struct is being used because enum doesn't allow members /// internal struct XmlQueryCardinality { private int value; #region ctor ////// Private constructor /// private XmlQueryCardinality(int value) { Debug.Assert(0x00 <= value && value <= 0x07); this.value = value; } #endregion #region enum ////// exactly zero (empty) /// public static XmlQueryCardinality None { get { return new XmlQueryCardinality(0x00); } } ////// exactly zero (empty) /// public static XmlQueryCardinality Zero { get { return new XmlQueryCardinality(0x01); } } ////// exactly one /// public static XmlQueryCardinality One { get { return new XmlQueryCardinality(0x02); } } ////// zero or one (not more) /// public static XmlQueryCardinality ZeroOrOne { get { return new XmlQueryCardinality(0x03); } } ////// strictly more than one /// public static XmlQueryCardinality More { get { return new XmlQueryCardinality(0x04); } } ////// not one (strictly zero or strictly more) /// public static XmlQueryCardinality NotOne { get { return new XmlQueryCardinality(0x05); } } ////// one or more (not empty) /// public static XmlQueryCardinality OneOrMore { get { return new XmlQueryCardinality(0x06); } } ////// zero or more (any cardinality) /// public static XmlQueryCardinality ZeroOrMore { get { return new XmlQueryCardinality(0x07); } } #endregion #region == ////// Strongly-typed Equals that returns true if this type and "other" type are equivalent. /// public bool Equals(XmlQueryCardinality other) { return this.value == other.value; } ////// Overload == operator to call Equals rather than do reference equality. /// public static bool operator ==(XmlQueryCardinality left, XmlQueryCardinality right) { return left.value == right.value; } ////// Overload != operator to call Equals rather than do reference inequality. /// public static bool operator !=(XmlQueryCardinality left, XmlQueryCardinality right) { return left.value != right.value; } ////// True if "other" is an XmlQueryCardinality, and this type is the exact same static type. /// public override bool Equals(object other) { if (other is XmlQueryCardinality) { return Equals((XmlQueryCardinality)other); } return false; } ////// Return hash code of this instance. /// public override int GetHashCode() { return value; } #endregion #region algebra ////// Return union with other /// public static XmlQueryCardinality operator |(XmlQueryCardinality left, XmlQueryCardinality right) { return new XmlQueryCardinality(left.value | right.value); } ////// Return intersection with other /// public static XmlQueryCardinality operator &(XmlQueryCardinality left, XmlQueryCardinality right) { return new XmlQueryCardinality(left.value & right.value); } ////// Return this product other /// public static XmlQueryCardinality operator *(XmlQueryCardinality left, XmlQueryCardinality right) { return cardinalityProduct[left.value, right.value]; } ////// Return sum with other /// public static XmlQueryCardinality operator +(XmlQueryCardinality left, XmlQueryCardinality right) { return cardinalitySum[left.value, right.value]; } #if NEVER ////// Returns true if this cardinality is guaranteed to be a subset of "other". /// private bool IsSubset(XmlQueryCardinality other) { return (this.value & ~other.value) == 0; } #endif ////// Returns true is left is subset of right. /// public static bool operator <=(XmlQueryCardinality left, XmlQueryCardinality right) { return (left.value & ~right.value) == 0; } ////// Returns true is right is subset of left. /// public static bool operator >=(XmlQueryCardinality left, XmlQueryCardinality right) { return (right.value & ~left.value) == 0; } ////// Compute the cardinality of a subset of a set of the given cardinality. /// /// the cardinality of a set ///the cardinality of a subset public XmlQueryCardinality AtMost() { // Fill downward to zero return new XmlQueryCardinality(this.value | (this.value >> 1) | (this.value >> 2)); } ////// Returns true if every non-None subset of this cardinality is disjoint with "other" cardinality. /// Here is the behavior for None, which is the inverse of the None behavior for IsSubset: /// None op None = false /// None op ~None = false /// ~None op None = true /// public bool NeverSubset(XmlQueryCardinality other) { return this.value != 0 && (this.value & other.value) == 0; } ////// Table of cardinality products. /// private static readonly XmlQueryCardinality[,] cardinalityProduct = { // None Zero One ZeroOrOne More NotOne OneOrMore ZeroOrMore /* None */ { None, Zero, None , Zero , None , Zero , None , Zero }, /* Zero */ { Zero, Zero, Zero , Zero , Zero , Zero , Zero , Zero }, /* One */ { None, Zero, One , ZeroOrOne , More , NotOne, OneOrMore , ZeroOrMore }, /* ZeroOrOne */ { Zero, Zero, ZeroOrOne , ZeroOrOne , NotOne, NotOne, ZeroOrMore, ZeroOrMore }, /* More */ { None, Zero, More , NotOne , More , NotOne, More , NotOne }, /* NotOne */ { Zero, Zero, NotOne , NotOne , NotOne, NotOne, NotOne , NotOne }, /* OneOrMore */ { None, Zero, OneOrMore , ZeroOrMore, More , NotOne, OneOrMore , ZeroOrMore }, /* ZeroOrMore */ { Zero, Zero, ZeroOrMore, ZeroOrMore, NotOne, NotOne, ZeroOrMore, ZeroOrMore } }; ////// Table of cardinality sums. /// private static readonly XmlQueryCardinality[,] cardinalitySum = { // None Zero One ZeroOrOne More NotOne OneOrMore ZeroOrMore /* None */ { None , Zero , One , ZeroOrOne , More, NotOne , OneOrMore, ZeroOrMore}, /* Zero */ { Zero , Zero , One , ZeroOrOne , More, NotOne , OneOrMore, ZeroOrMore}, /* One */ { One , One , More , OneOrMore , More, OneOrMore , More , OneOrMore }, /* ZeroOrOne */ { ZeroOrOne , ZeroOrOne , OneOrMore, ZeroOrMore, More, ZeroOrMore, OneOrMore, ZeroOrMore}, /* More */ { More , More , More , More , More, More , More , More }, /* NotOne */ { NotOne , NotOne , OneOrMore, ZeroOrMore, More, NotOne , OneOrMore, ZeroOrMore}, /* OneOrMore */ { OneOrMore , OneOrMore , More , OneOrMore , More, OneOrMore , More , OneOrMore }, /* ZeroOrMore */ { ZeroOrMore, ZeroOrMore, OneOrMore, ZeroOrMore, More, ZeroOrMore, OneOrMore, ZeroOrMore} }; #endregion #region Serialization ////// String representation. /// private static readonly string[] toString = { /* None */ "" , /* Zero */ "?" , /* One */ "" , /* ZeroOrOne */ "?" , /* More */ "+" , /* NotOne */ "*" , /* OneOrMore */ "+" , /* ZeroOrMore */ "*" }; ////// Serialization /// private static readonly string[] serialized = { /* None */ "None", /* Zero */ "Zero", /* One */ "One", /* ZeroOrOne */ "ZeroOrOne", /* More */ "More", /* NotOne */ "NotOne", /* OneOrMore */ "OneOrMore", /* ZeroOrMore */ "ZeroOrMore" }; ////// Return the string representation of a cardinality, normalized to either ?, +, *, or "" (card 1). /// public string ToString(string format) { if (format == "S") { return serialized[this.value]; } else { return ToString(); } } ////// Return the string representation of a cardinality, normalized to either ?, +, *, or "" (card 1). /// public override string ToString() { return toString[this.value]; } ////// Deserialization /// public XmlQueryCardinality(string s) { this.value = 0x00; for (int i = 0; i < serialized.Length; i++) { if (s == serialized[i]) { this.value = i; break; } } } ////// Serialize the object to BinaryWriter. /// public void GetObjectData(BinaryWriter writer) { writer.Write((byte)value); } ////// Deserialize the object from BinaryReader. /// public XmlQueryCardinality(BinaryReader reader) : this(reader.ReadByte()) { } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System.Diagnostics; using System.IO; namespace System.Xml.Xsl { ////// Cardinality of part of XmlQueryType /// struct is being used because enum doesn't allow members /// internal struct XmlQueryCardinality { private int value; #region ctor ////// Private constructor /// private XmlQueryCardinality(int value) { Debug.Assert(0x00 <= value && value <= 0x07); this.value = value; } #endregion #region enum ////// exactly zero (empty) /// public static XmlQueryCardinality None { get { return new XmlQueryCardinality(0x00); } } ////// exactly zero (empty) /// public static XmlQueryCardinality Zero { get { return new XmlQueryCardinality(0x01); } } ////// exactly one /// public static XmlQueryCardinality One { get { return new XmlQueryCardinality(0x02); } } ////// zero or one (not more) /// public static XmlQueryCardinality ZeroOrOne { get { return new XmlQueryCardinality(0x03); } } ////// strictly more than one /// public static XmlQueryCardinality More { get { return new XmlQueryCardinality(0x04); } } ////// not one (strictly zero or strictly more) /// public static XmlQueryCardinality NotOne { get { return new XmlQueryCardinality(0x05); } } ////// one or more (not empty) /// public static XmlQueryCardinality OneOrMore { get { return new XmlQueryCardinality(0x06); } } ////// zero or more (any cardinality) /// public static XmlQueryCardinality ZeroOrMore { get { return new XmlQueryCardinality(0x07); } } #endregion #region == ////// Strongly-typed Equals that returns true if this type and "other" type are equivalent. /// public bool Equals(XmlQueryCardinality other) { return this.value == other.value; } ////// Overload == operator to call Equals rather than do reference equality. /// public static bool operator ==(XmlQueryCardinality left, XmlQueryCardinality right) { return left.value == right.value; } ////// Overload != operator to call Equals rather than do reference inequality. /// public static bool operator !=(XmlQueryCardinality left, XmlQueryCardinality right) { return left.value != right.value; } ////// True if "other" is an XmlQueryCardinality, and this type is the exact same static type. /// public override bool Equals(object other) { if (other is XmlQueryCardinality) { return Equals((XmlQueryCardinality)other); } return false; } ////// Return hash code of this instance. /// public override int GetHashCode() { return value; } #endregion #region algebra ////// Return union with other /// public static XmlQueryCardinality operator |(XmlQueryCardinality left, XmlQueryCardinality right) { return new XmlQueryCardinality(left.value | right.value); } ////// Return intersection with other /// public static XmlQueryCardinality operator &(XmlQueryCardinality left, XmlQueryCardinality right) { return new XmlQueryCardinality(left.value & right.value); } ////// Return this product other /// public static XmlQueryCardinality operator *(XmlQueryCardinality left, XmlQueryCardinality right) { return cardinalityProduct[left.value, right.value]; } ////// Return sum with other /// public static XmlQueryCardinality operator +(XmlQueryCardinality left, XmlQueryCardinality right) { return cardinalitySum[left.value, right.value]; } #if NEVER ////// Returns true if this cardinality is guaranteed to be a subset of "other". /// private bool IsSubset(XmlQueryCardinality other) { return (this.value & ~other.value) == 0; } #endif ////// Returns true is left is subset of right. /// public static bool operator <=(XmlQueryCardinality left, XmlQueryCardinality right) { return (left.value & ~right.value) == 0; } ////// Returns true is right is subset of left. /// public static bool operator >=(XmlQueryCardinality left, XmlQueryCardinality right) { return (right.value & ~left.value) == 0; } ////// Compute the cardinality of a subset of a set of the given cardinality. /// /// the cardinality of a set ///the cardinality of a subset public XmlQueryCardinality AtMost() { // Fill downward to zero return new XmlQueryCardinality(this.value | (this.value >> 1) | (this.value >> 2)); } ////// Returns true if every non-None subset of this cardinality is disjoint with "other" cardinality. /// Here is the behavior for None, which is the inverse of the None behavior for IsSubset: /// None op None = false /// None op ~None = false /// ~None op None = true /// public bool NeverSubset(XmlQueryCardinality other) { return this.value != 0 && (this.value & other.value) == 0; } ////// Table of cardinality products. /// private static readonly XmlQueryCardinality[,] cardinalityProduct = { // None Zero One ZeroOrOne More NotOne OneOrMore ZeroOrMore /* None */ { None, Zero, None , Zero , None , Zero , None , Zero }, /* Zero */ { Zero, Zero, Zero , Zero , Zero , Zero , Zero , Zero }, /* One */ { None, Zero, One , ZeroOrOne , More , NotOne, OneOrMore , ZeroOrMore }, /* ZeroOrOne */ { Zero, Zero, ZeroOrOne , ZeroOrOne , NotOne, NotOne, ZeroOrMore, ZeroOrMore }, /* More */ { None, Zero, More , NotOne , More , NotOne, More , NotOne }, /* NotOne */ { Zero, Zero, NotOne , NotOne , NotOne, NotOne, NotOne , NotOne }, /* OneOrMore */ { None, Zero, OneOrMore , ZeroOrMore, More , NotOne, OneOrMore , ZeroOrMore }, /* ZeroOrMore */ { Zero, Zero, ZeroOrMore, ZeroOrMore, NotOne, NotOne, ZeroOrMore, ZeroOrMore } }; ////// Table of cardinality sums. /// private static readonly XmlQueryCardinality[,] cardinalitySum = { // None Zero One ZeroOrOne More NotOne OneOrMore ZeroOrMore /* None */ { None , Zero , One , ZeroOrOne , More, NotOne , OneOrMore, ZeroOrMore}, /* Zero */ { Zero , Zero , One , ZeroOrOne , More, NotOne , OneOrMore, ZeroOrMore}, /* One */ { One , One , More , OneOrMore , More, OneOrMore , More , OneOrMore }, /* ZeroOrOne */ { ZeroOrOne , ZeroOrOne , OneOrMore, ZeroOrMore, More, ZeroOrMore, OneOrMore, ZeroOrMore}, /* More */ { More , More , More , More , More, More , More , More }, /* NotOne */ { NotOne , NotOne , OneOrMore, ZeroOrMore, More, NotOne , OneOrMore, ZeroOrMore}, /* OneOrMore */ { OneOrMore , OneOrMore , More , OneOrMore , More, OneOrMore , More , OneOrMore }, /* ZeroOrMore */ { ZeroOrMore, ZeroOrMore, OneOrMore, ZeroOrMore, More, ZeroOrMore, OneOrMore, ZeroOrMore} }; #endregion #region Serialization ////// String representation. /// private static readonly string[] toString = { /* None */ "" , /* Zero */ "?" , /* One */ "" , /* ZeroOrOne */ "?" , /* More */ "+" , /* NotOne */ "*" , /* OneOrMore */ "+" , /* ZeroOrMore */ "*" }; ////// Serialization /// private static readonly string[] serialized = { /* None */ "None", /* Zero */ "Zero", /* One */ "One", /* ZeroOrOne */ "ZeroOrOne", /* More */ "More", /* NotOne */ "NotOne", /* OneOrMore */ "OneOrMore", /* ZeroOrMore */ "ZeroOrMore" }; ////// Return the string representation of a cardinality, normalized to either ?, +, *, or "" (card 1). /// public string ToString(string format) { if (format == "S") { return serialized[this.value]; } else { return ToString(); } } ////// Return the string representation of a cardinality, normalized to either ?, +, *, or "" (card 1). /// public override string ToString() { return toString[this.value]; } ////// Deserialization /// public XmlQueryCardinality(string s) { this.value = 0x00; for (int i = 0; i < serialized.Length; i++) { if (s == serialized[i]) { this.value = i; break; } } } ////// Serialize the object to BinaryWriter. /// public void GetObjectData(BinaryWriter writer) { writer.Write((byte)value); } ////// Deserialize the object from BinaryReader. /// public XmlQueryCardinality(BinaryReader reader) : this(reader.ReadByte()) { } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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