niko
301 lines
13 KiB
C#
301 lines
13 KiB
C#
using System;
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using System.Collections;
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using System.Runtime.InteropServices;
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namespace System.Globalization
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{
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/// <summary>Provides functionality to split a string into text elements and to iterate through those text elements.</summary>
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// Token: 0x02000196 RID: 406
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[ComVisible(true)]
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[Serializable]
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public class StringInfo
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{
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/// <summary>Initializes a new instance of the <see cref="T:System.Globalization.StringInfo" /> class. </summary>
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// Token: 0x0600149C RID: 5276 RVA: 0x0004F66C File Offset: 0x0004D86C
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public StringInfo()
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{
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}
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/// <summary>Initializes a new instance of the <see cref="T:System.Globalization.StringInfo" /> class to a specified string.</summary>
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/// <param name="value">A string to initialize this <see cref="T:System.Globalization.StringInfo" /> object.</param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="value" /> is null.</exception>
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// Token: 0x0600149D RID: 5277 RVA: 0x0004F674 File Offset: 0x0004D874
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public StringInfo(string value)
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{
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this.String = value;
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}
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/// <summary>Indicates whether the current <see cref="T:System.Globalization.StringInfo" /> object is equal to a specified object.</summary>
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/// <returns>true if the <paramref name="value" /> parameter is a <see cref="T:System.Globalization.StringInfo" /> object and its <see cref="P:System.Globalization.StringInfo.String" /> property equals the <see cref="P:System.Globalization.StringInfo.String" /> property of this <see cref="T:System.Globalization.StringInfo" /> object; otherwise, false.</returns>
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/// <param name="value">An object.</param>
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// Token: 0x0600149E RID: 5278 RVA: 0x0004F684 File Offset: 0x0004D884
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[ComVisible(false)]
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public override bool Equals(object value)
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{
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StringInfo stringInfo = value as StringInfo;
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return stringInfo != null && this.s == stringInfo.s;
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}
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/// <summary>Calculates a hash code for the value of the current <see cref="T:System.Globalization.StringInfo" /> object.</summary>
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/// <returns>A 32-bit signed integer hash code based on the string value of this <see cref="T:System.Globalization.StringInfo" /> object.</returns>
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// Token: 0x0600149F RID: 5279 RVA: 0x0004F6B4 File Offset: 0x0004D8B4
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[ComVisible(false)]
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public override int GetHashCode()
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{
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return this.s.GetHashCode();
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}
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/// <summary>Gets the number of text elements in the current <see cref="T:System.Globalization.StringInfo" /> object.</summary>
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/// <returns>The number of base characters, surrogate pairs, and combining character sequences in this <see cref="T:System.Globalization.StringInfo" /> object.</returns>
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// Token: 0x170003A6 RID: 934
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// (get) Token: 0x060014A0 RID: 5280 RVA: 0x0004F6C4 File Offset: 0x0004D8C4
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public int LengthInTextElements
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{
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get
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{
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if (this.length < 0)
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{
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this.length = 0;
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int i = 0;
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while (i < this.s.Length)
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{
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i += StringInfo.GetNextTextElementLength(this.s, i);
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this.length++;
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}
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}
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return this.length;
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}
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}
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/// <summary>Gets or sets the value of the current <see cref="T:System.Globalization.StringInfo" /> object.</summary>
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/// <returns>The string that is the value of the current <see cref="T:System.Globalization.StringInfo" /> object.</returns>
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/// <exception cref="T:System.ArgumentNullException">The value in a set operation is null.</exception>
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// Token: 0x170003A7 RID: 935
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// (get) Token: 0x060014A1 RID: 5281 RVA: 0x0004F720 File Offset: 0x0004D920
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// (set) Token: 0x060014A2 RID: 5282 RVA: 0x0004F728 File Offset: 0x0004D928
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public string String
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{
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get
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{
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return this.s;
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}
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set
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{
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if (value == null)
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{
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throw new ArgumentNullException("value");
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}
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this.length = -1;
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this.s = value;
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}
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}
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/// <summary>Retrieves a substring of text elements from the current <see cref="T:System.Globalization.StringInfo" /> object starting from a specified text element and continuing through the last text element.</summary>
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/// <returns>A substring of text elements in this <see cref="T:System.Globalization.StringInfo" /> object, starting from the text element index specified by the <paramref name="startingTextElement" /> parameter and continuing through the last text element in this object.</returns>
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/// <param name="startingTextElement">The zero-based index of a text element in this <see cref="T:System.Globalization.StringInfo" /> object.</param>
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/// <exception cref="T:System.ArgumentOutOfRangeException">
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/// <paramref name="startingTextElement" /> is less than zero.-or-The string that is the value of the current <see cref="T:System.Globalization.StringInfo" /> object is the empty string ("").</exception>
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// Token: 0x060014A3 RID: 5283 RVA: 0x0004F74C File Offset: 0x0004D94C
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public string SubstringByTextElements(int startingTextElement)
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{
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if (startingTextElement < 0 || this.s.Length == 0)
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{
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throw new ArgumentOutOfRangeException("startingTextElement");
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}
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int num = 0;
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for (int i = 0; i < startingTextElement; i++)
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{
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if (num >= this.s.Length)
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{
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throw new ArgumentOutOfRangeException("startingTextElement");
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}
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num += StringInfo.GetNextTextElementLength(this.s, num);
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}
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return this.s.Substring(num);
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}
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/// <summary>Retrieves a substring of text elements from the current <see cref="T:System.Globalization.StringInfo" /> object starting from a specified text element and continuing through the specified number of text elements.</summary>
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/// <returns>A substring of text elements in this <see cref="T:System.Globalization.StringInfo" /> object. The substring consists of the number of text elements specified by the <paramref name="lengthInTextElements" /> parameter and starts from the text element index specified by the <paramref name="startingTextElement" /> parameter.</returns>
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/// <param name="startingTextElement">The zero-based index of a text element in this <see cref="T:System.Globalization.StringInfo" /> object.</param>
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/// <param name="lengthInTextElements">The number of text elements to retrieve.</param>
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/// <exception cref="T:System.ArgumentOutOfRangeException">
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/// <paramref name="startingTextElement" /> is less than zero.-or-<paramref name="startingTextElement" /> is greater than or equal to the length of the string that is the value of the current <see cref="T:System.Globalization.StringInfo" /> object.-or-<paramref name="lengthInTextElements" /> is less than zero.-or-The string that is the value of the current <see cref="T:System.Globalization.StringInfo" /> object is the empty string ("").-or-<paramref name="startingTextElement" /> + <paramref name="lengthInTextElements" /> specify an index that is greater than the number of text elements in this <see cref="T:System.Globalization.StringInfo" /> object.</exception>
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// Token: 0x060014A4 RID: 5284 RVA: 0x0004F7C8 File Offset: 0x0004D9C8
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public string SubstringByTextElements(int startingTextElement, int lengthInTextElements)
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{
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if (startingTextElement < 0 || this.s.Length == 0)
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{
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throw new ArgumentOutOfRangeException("startingTextElement");
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}
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if (lengthInTextElements < 0)
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{
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throw new ArgumentOutOfRangeException("lengthInTextElements");
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}
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int num = 0;
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for (int i = 0; i < startingTextElement; i++)
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{
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if (num >= this.s.Length)
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{
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throw new ArgumentOutOfRangeException("startingTextElement");
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}
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num += StringInfo.GetNextTextElementLength(this.s, num);
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}
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int num2 = num;
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for (int j = 0; j < lengthInTextElements; j++)
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{
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if (num >= this.s.Length)
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{
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throw new ArgumentOutOfRangeException("lengthInTextElements");
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}
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num += StringInfo.GetNextTextElementLength(this.s, num);
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}
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return this.s.Substring(num2, num - num2);
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}
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/// <summary>Gets the first text element in a specified string.</summary>
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/// <returns>A string containing the first text element in the specified string.</returns>
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/// <param name="str">The string from which to get the text element. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="str" /> is null. </exception>
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// Token: 0x060014A5 RID: 5285 RVA: 0x0004F898 File Offset: 0x0004DA98
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public static string GetNextTextElement(string str)
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{
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if (str == null || str.Length == 0)
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{
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throw new ArgumentNullException("string is null");
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}
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return StringInfo.GetNextTextElement(str, 0);
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}
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/// <summary>Gets the text element at the specified index of the specified string.</summary>
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/// <returns>A string containing the text element at the specified index of the specified string.</returns>
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/// <param name="str">The string from which to get the text element. </param>
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/// <param name="index">The zero-based index at which the text element starts. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="str" /> is null. </exception>
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/// <exception cref="T:System.ArgumentOutOfRangeException">
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/// <paramref name="index" /> is outside the range of valid indexes for <paramref name="str" />. </exception>
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// Token: 0x060014A6 RID: 5286 RVA: 0x0004F8C0 File Offset: 0x0004DAC0
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public static string GetNextTextElement(string str, int index)
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{
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int nextTextElementLength = StringInfo.GetNextTextElementLength(str, index);
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return (nextTextElementLength == 1) ? new string(str[index], 1) : str.Substring(index, nextTextElementLength);
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}
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// Token: 0x060014A7 RID: 5287 RVA: 0x0004F8F8 File Offset: 0x0004DAF8
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private static int GetNextTextElementLength(string str, int index)
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{
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if (str == null)
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{
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throw new ArgumentNullException("string is null");
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}
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if (index >= str.Length)
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{
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return 0;
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}
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if (index < 0)
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{
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throw new ArgumentOutOfRangeException("Index is not valid");
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}
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char c = str[index];
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UnicodeCategory unicodeCategory = char.GetUnicodeCategory(c);
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if (unicodeCategory == UnicodeCategory.Surrogate)
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{
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if (c < '\ud800' || c > '\udbff')
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{
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return 1;
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}
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if (index + 1 < str.Length && str[index + 1] >= '\udc00' && str[index + 1] <= '\udfff')
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{
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return 2;
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}
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return 1;
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}
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else
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{
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if (unicodeCategory == UnicodeCategory.NonSpacingMark || unicodeCategory == UnicodeCategory.SpacingCombiningMark || unicodeCategory == UnicodeCategory.EnclosingMark)
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{
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return 1;
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}
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int num = 1;
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while (index + num < str.Length)
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{
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unicodeCategory = char.GetUnicodeCategory(str[index + num]);
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if (unicodeCategory != UnicodeCategory.NonSpacingMark && unicodeCategory != UnicodeCategory.SpacingCombiningMark && unicodeCategory != UnicodeCategory.EnclosingMark)
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{
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break;
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}
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num++;
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}
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return num;
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}
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}
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/// <summary>Returns an enumerator that iterates through the text elements of the entire string.</summary>
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/// <returns>A <see cref="T:System.Globalization.TextElementEnumerator" /> for the entire string.</returns>
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/// <param name="str">The string to iterate through. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="str" /> is null. </exception>
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// Token: 0x060014A8 RID: 5288 RVA: 0x0004F9F8 File Offset: 0x0004DBF8
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public static TextElementEnumerator GetTextElementEnumerator(string str)
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{
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if (str == null || str.Length == 0)
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{
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throw new ArgumentNullException("string is null");
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}
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return new TextElementEnumerator(str, 0);
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}
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/// <summary>Returns an enumerator that iterates through the text elements of the string, starting at the specified index.</summary>
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/// <returns>A <see cref="T:System.Globalization.TextElementEnumerator" /> for the string starting at <paramref name="index" />.</returns>
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/// <param name="str">The string to iterate through. </param>
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/// <param name="index">The zero-based index at which to start iterating. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="str" /> is null. </exception>
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/// <exception cref="T:System.ArgumentOutOfRangeException">
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/// <paramref name="index" /> is outside the range of valid indexes for <paramref name="str" />. </exception>
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// Token: 0x060014A9 RID: 5289 RVA: 0x0004FA20 File Offset: 0x0004DC20
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public static TextElementEnumerator GetTextElementEnumerator(string str, int index)
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{
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if (str == null)
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{
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throw new ArgumentNullException("string is null");
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}
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if (index < 0 || index >= str.Length)
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{
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throw new ArgumentOutOfRangeException("Index is not valid");
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}
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return new TextElementEnumerator(str, index);
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}
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/// <summary>Returns the indexes of each base character, high surrogate, or control character within the specified string.</summary>
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/// <returns>An array of integers that contains the zero-based indexes of each base character, high surrogate, or control character within the specified string.</returns>
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/// <param name="str">The string to search. </param>
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/// <exception cref="T:System.ArgumentNullException">
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/// <paramref name="str" /> is null. </exception>
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// Token: 0x060014AA RID: 5290 RVA: 0x0004FA64 File Offset: 0x0004DC64
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public static int[] ParseCombiningCharacters(string str)
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{
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if (str == null)
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{
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throw new ArgumentNullException("string is null");
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}
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ArrayList arrayList = new ArrayList(str.Length);
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TextElementEnumerator textElementEnumerator = StringInfo.GetTextElementEnumerator(str);
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textElementEnumerator.Reset();
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while (textElementEnumerator.MoveNext())
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{
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arrayList.Add(textElementEnumerator.ElementIndex);
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}
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return (int[])arrayList.ToArray(typeof(int));
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}
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// Token: 0x040005D8 RID: 1496
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private string s;
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// Token: 0x040005D9 RID: 1497
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private int length;
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}
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}
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