String.IsNormalized Methode

Definitie

Naamruimte:: System

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Belangrijk

Bepaalde informatie heeft betrekking op een voorlopige productversie die aanzienlijk kan worden gewijzigd voordat deze wordt uitgebracht. Microsoft biedt geen enkele expliciete of impliciete garanties met betrekking tot de informatie die hier wordt verstrekt.

Geeft aan of deze tekenreeks een bepaalde Unicode-normalisatievorm heeft.

Overloads

Name	Description
IsNormalized()	Geeft aan of deze tekenreeks zich in Unicode-normalisatievorm C bevindt.
IsNormalized(NormalizationForm)	Geeft aan of deze tekenreeks zich in de opgegeven Unicode-normalisatievorm bevindt.

Voorbeelden

In het volgende voorbeeld wordt bepaald of een tekenreeks is genormaliseerd naar verschillende normalisatieformulieren.

using System;
using System.Text;

class Example
{
    public static void Main()
    {
       // Character c; combining characters acute and cedilla; character 3/4
       string s1 = new String( new char[] {'\u0063', '\u0301', '\u0327', '\u00BE'});
       string s2 = null;
       string divider = new String('-', 80);
       divider = String.Concat(Environment.NewLine, divider, Environment.NewLine);

       Show("s1", s1);
       Console.WriteLine();
       Console.WriteLine("U+0063 = LATIN SMALL LETTER C");
       Console.WriteLine("U+0301 = COMBINING ACUTE ACCENT");
       Console.WriteLine("U+0327 = COMBINING CEDILLA");
       Console.WriteLine("U+00BE = VULGAR FRACTION THREE QUARTERS");
       Console.WriteLine(divider);

       Console.WriteLine("A1) Is s1 normalized to the default form (Form C)?: {0}",
                                    s1.IsNormalized());
       Console.WriteLine("A2) Is s1 normalized to Form C?:  {0}",
                                    s1.IsNormalized(NormalizationForm.FormC));
       Console.WriteLine("A3) Is s1 normalized to Form D?:  {0}",
                                    s1.IsNormalized(NormalizationForm.FormD));
       Console.WriteLine("A4) Is s1 normalized to Form KC?: {0}",
                                    s1.IsNormalized(NormalizationForm.FormKC));
       Console.WriteLine("A5) Is s1 normalized to Form KD?: {0}",
                                    s1.IsNormalized(NormalizationForm.FormKD));

       Console.WriteLine(divider);

       Console.WriteLine("Set string s2 to each normalized form of string s1.");
       Console.WriteLine();
       Console.WriteLine("U+1E09 = LATIN SMALL LETTER C WITH CEDILLA AND ACUTE");
       Console.WriteLine("U+0033 = DIGIT THREE");
       Console.WriteLine("U+2044 = FRACTION SLASH");
       Console.WriteLine("U+0034 = DIGIT FOUR");
       Console.WriteLine(divider);

       s2 = s1.Normalize();
       Console.Write("B1) Is s2 normalized to the default form (Form C)?: ");
       Console.WriteLine(s2.IsNormalized());
       Show("s2", s2);
       Console.WriteLine();

       s2 = s1.Normalize(NormalizationForm.FormC);
       Console.Write("B2) Is s2 normalized to Form C?: ");
       Console.WriteLine(s2.IsNormalized(NormalizationForm.FormC));
       Show("s2", s2);
       Console.WriteLine();

       s2 = s1.Normalize(NormalizationForm.FormD);
       Console.Write("B3) Is s2 normalized to Form D?: ");
       Console.WriteLine(s2.IsNormalized(NormalizationForm.FormD));
       Show("s2", s2);
       Console.WriteLine();

       s2 = s1.Normalize(NormalizationForm.FormKC);
       Console.Write("B4) Is s2 normalized to Form KC?: ");
       Console.WriteLine(s2.IsNormalized(NormalizationForm.FormKC));
       Show("s2", s2);
       Console.WriteLine();

       s2 = s1.Normalize(NormalizationForm.FormKD);
       Console.Write("B5) Is s2 normalized to Form KD?: ");
       Console.WriteLine(s2.IsNormalized(NormalizationForm.FormKD));
       Show("s2", s2);
       Console.WriteLine();
    }

    private static void Show(string title, string s)
    {
       Console.Write("Characters in string {0} = ", title);
       foreach(short x in s) {
           Console.Write("{0:X4} ", x);
       }
       Console.WriteLine();
    }
}
/*
This example produces the following results:

Characters in string s1 = 0063 0301 0327 00BE

U+0063 = LATIN SMALL LETTER C
U+0301 = COMBINING ACUTE ACCENT
U+0327 = COMBINING CEDILLA
U+00BE = VULGAR FRACTION THREE QUARTERS

--------------------------------------------------------------------------------

A1) Is s1 normalized to the default form (Form C)?: False
A2) Is s1 normalized to Form C?:  False
A3) Is s1 normalized to Form D?:  False
A4) Is s1 normalized to Form KC?: False
A5) Is s1 normalized to Form KD?: False

--------------------------------------------------------------------------------

Set string s2 to each normalized form of string s1.

U+1E09 = LATIN SMALL LETTER C WITH CEDILLA AND ACUTE
U+0033 = DIGIT THREE
U+2044 = FRACTION SLASH
U+0034 = DIGIT FOUR

--------------------------------------------------------------------------------

B1) Is s2 normalized to the default form (Form C)?: True
Characters in string s2 = 1E09 00BE

B2) Is s2 normalized to Form C?: True
Characters in string s2 = 1E09 00BE

B3) Is s2 normalized to Form D?: True
Characters in string s2 = 0063 0327 0301 00BE

B4) Is s2 normalized to Form KC?: True
Characters in string s2 = 1E09 0033 2044 0034

B5) Is s2 normalized to Form KD?: True
Characters in string s2 = 0063 0327 0301 0033 2044 0034

*/

open System
open System.Text

let show title (s: string) =
    printf $"Characters in string %s{title} = "
    for x in s do
        printf $"{int16 x:X4} "
    printfn ""


[<EntryPoint>]
let main _ =
    // Character c; combining characters acute and cedilla; character 3/4
    let s1 = String [| '\u0063'; '\u0301'; '\u0327'; '\u00BE' |]
    let divider = String('-', 80)
    let divider = String.Concat(Environment.NewLine, divider, Environment.NewLine)

    show "s1" s1
    printfn "\nU+0063 = LATIN SMALL LETTER C"
    printfn "U+0301 = COMBINING ACUTE ACCENT"
    printfn "U+0327 = COMBINING CEDILLA"
    printfn "U+00BE = VULGAR FRACTION THREE QUARTERS"
    printfn $"{divider}"

    printfn $"A1) Is s1 normalized to the default form (Form C)?: {s1.IsNormalized()}"
    printfn $"A2) Is s1 normalized to Form C?:  {s1.IsNormalized NormalizationForm.FormC}"
    printfn $"A3) Is s1 normalized to Form D?:  {s1.IsNormalized NormalizationForm.FormD}"
    printfn $"A4) Is s1 normalized to Form KC?: {s1.IsNormalized NormalizationForm.FormKC}"
    printfn $"A5) Is s1 normalized to Form KD?: {s1.IsNormalized NormalizationForm.FormKD}"

    printfn $"{divider}"

    printfn "Set string s2 to each normalized form of string s1.\n"
    printfn "U+1E09 = LATIN SMALL LETTER C WITH CEDILLA AND ACUTE"
    printfn"U+0033 = DIGIT THREE"
    printfn"U+2044 = FRACTION SLASH"
    printfn"U+0034 = DIGIT FOUR"
    printfn $"{divider}"
 
    let s2 = s1.Normalize()
    printf "B1) Is s2 normalized to the default form (Form C)?: "
    printfn $"{s2.IsNormalized()}"
    show "s2" s2
    printfn ""

    let s2 = s1.Normalize NormalizationForm.FormC
    printf "B2) Is s2 normalized to Form C?: "
    printfn $"{s2.IsNormalized NormalizationForm.FormC}"
    show "s2" s2
    printfn ""

    let s2 = s1.Normalize NormalizationForm.FormD
    printf "B3) Is s2 normalized to Form D?: "
    printfn $"{s2.IsNormalized NormalizationForm.FormD}"
    show "s2" s2
    printfn ""

    let s2 = s1.Normalize(NormalizationForm.FormKC)
    printf "B4) Is s2 normalized to Form KC?: "
    printfn $"{s2.IsNormalized NormalizationForm.FormKC}"
    show "s2" s2
    printfn ""

    let s2 = s1.Normalize(NormalizationForm.FormKD)
    printf "B5) Is s2 normalized to Form KD?: "
    printfn $"{s2.IsNormalized NormalizationForm.FormKD}"
    show "s2" s2
    0

(*
This example produces the following results:

Characters in string s1 = 0063 0301 0327 00BE

U+0063 = LATIN SMALL LETTER C
U+0301 = COMBINING ACUTE ACCENT
U+0327 = COMBINING CEDILLA
U+00BE = VULGAR FRACTION THREE QUARTERS

--------------------------------------------------------------------------------

A1) Is s1 normalized to the default form (Form C)?: False
A2) Is s1 normalized to Form C?:  False
A3) Is s1 normalized to Form D?:  False
A4) Is s1 normalized to Form KC?: False
A5) Is s1 normalized to Form KD?: False

--------------------------------------------------------------------------------

Set string s2 to each normalized form of string s1.

U+1E09 = LATIN SMALL LETTER C WITH CEDILLA AND ACUTE
U+0033 = DIGIT THREE
U+2044 = FRACTION SLASH
U+0034 = DIGIT FOUR

--------------------------------------------------------------------------------

B1) Is s2 normalized to the default form (Form C)?: True
Characters in string s2 = 1E09 00BE

B2) Is s2 normalized to Form C?: True
Characters in string s2 = 1E09 00BE

B3) Is s2 normalized to Form D?: True
Characters in string s2 = 0063 0327 0301 00BE

B4) Is s2 normalized to Form KC?: True
Characters in string s2 = 1E09 0033 2044 0034

B5) Is s2 normalized to Form KD?: True
Characters in string s2 = 0063 0327 0301 0033 2044 0034

*)

Imports System.Text

Class Example
   Public Shared Sub Main()
      ' Character c; combining characters acute and cedilla; character 3/4
      Dim s1 = New [String](New Char() {ChrW(&H0063), ChrW(&H0301), ChrW(&H0327), ChrW(&H00BE)})
      Dim s2 As String = Nothing
      Dim divider = New [String]("-"c, 80)
      divider = [String].Concat(Environment.NewLine, divider, Environment.NewLine)
      
      Show("s1", s1)
      Console.WriteLine()
      Console.WriteLine("U+0063 = LATIN SMALL LETTER C")
      Console.WriteLine("U+0301 = COMBINING ACUTE ACCENT")
      Console.WriteLine("U+0327 = COMBINING CEDILLA")
      Console.WriteLine("U+00BE = VULGAR FRACTION THREE QUARTERS")

      Console.WriteLine(divider)
      
      Console.WriteLine("A1) Is s1 normalized to the default form (Form C)?: {0}", s1.IsNormalized())
      Console.WriteLine("A2) Is s1 normalized to Form C?:  {0}", s1.IsNormalized(NormalizationForm.FormC))
      Console.WriteLine("A3) Is s1 normalized to Form D?:  {0}", s1.IsNormalized(NormalizationForm.FormD))
      Console.WriteLine("A4) Is s1 normalized to Form KC?: {0}", s1.IsNormalized(NormalizationForm.FormKC))
      Console.WriteLine("A5) Is s1 normalized to Form KD?: {0}", s1.IsNormalized(NormalizationForm.FormKD))
      
      Console.WriteLine(divider)
      
      Console.WriteLine("Set string s2 to each normalized form of string s1.")
      Console.WriteLine()
      Console.WriteLine("U+1E09 = LATIN SMALL LETTER C WITH CEDILLA AND ACUTE")
      Console.WriteLine("U+0033 = DIGIT THREE")
      Console.WriteLine("U+2044 = FRACTION SLASH")
      Console.WriteLine("U+0034 = DIGIT FOUR")
      Console.WriteLine(divider)
      
      s2 = s1.Normalize()
      Console.Write("B1) Is s2 normalized to the default form (Form C)?: ")
      Console.WriteLine(s2.IsNormalized())
      Show("s2", s2)
      Console.WriteLine()
      
      s2 = s1.Normalize(NormalizationForm.FormC)
      Console.Write("B2) Is s2 normalized to Form C?: ")
      Console.WriteLine(s2.IsNormalized(NormalizationForm.FormC))
      Show("s2", s2)
      Console.WriteLine()
      
      s2 = s1.Normalize(NormalizationForm.FormD)
      Console.Write("B3) Is s2 normalized to Form D?: ")
      Console.WriteLine(s2.IsNormalized(NormalizationForm.FormD))
      Show("s2", s2)
      Console.WriteLine()
      
      s2 = s1.Normalize(NormalizationForm.FormKC)
      Console.Write("B4) Is s2 normalized to Form KC?: ")
      Console.WriteLine(s2.IsNormalized(NormalizationForm.FormKC))
      Show("s2", s2)
      Console.WriteLine()
      
      s2 = s1.Normalize(NormalizationForm.FormKD)
      Console.Write("B5) Is s2 normalized to Form KD?: ")
      Console.WriteLine(s2.IsNormalized(NormalizationForm.FormKD))
      Show("s2", s2)
      Console.WriteLine()
   End Sub 
   
   Private Shared Sub Show(title As String, s As String)
      Console.Write("Characters in string {0} = ", title)
      For Each x As Char In s
         Console.Write("{0:X4} ", AscW(x))
      Next 
      Console.WriteLine()
   End Sub 
End Class 
'This example produces the following results:
'
'Characters in string s1 = 0063 0301 0327 00BE
'
'U+0063 = LATIN SMALL LETTER C
'U+0301 = COMBINING ACUTE ACCENT
'U+0327 = COMBINING CEDILLA
'U+00BE = VULGAR FRACTION THREE QUARTERS
'
'--------------------------------------------------------------------------------
'
'A1) Is s1 normalized to the default form (Form C)?: False
'A2) Is s1 normalized to Form C?:  False
'A3) Is s1 normalized to Form D?:  False
'A4) Is s1 normalized to Form KC?: False
'A5) Is s1 normalized to Form KD?: False
'
'--------------------------------------------------------------------------------
'
'Set string s2 to each normalized form of string s1.
'
'U+1E09 = LATIN SMALL LETTER C WITH CEDILLA AND ACUTE
'U+0033 = DIGIT THREE
'U+2044 = FRACTION SLASH
'U+0034 = DIGIT FOUR
'
'--------------------------------------------------------------------------------
'
'B1) Is s2 normalized to the default form (Form C)?: True
'Characters in string s2 = 1E09 00BE
'
'B2) Is s2 normalized to Form C?: True
'Characters in string s2 = 1E09 00BE
'
'B3) Is s2 normalized to Form D?: True
'Characters in string s2 = 0063 0327 0301 00BE
'
'B4) Is s2 normalized to Form KC?: True
'Characters in string s2 = 1E09 0033 2044 0034
'
'B5) Is s2 normalized to Form KD?: True
'Characters in string s2 = 0063 0327 0301 0033 2044 0034
'

IsNormalized()

Geeft aan of deze tekenreeks zich in Unicode-normalisatievorm C bevindt.

public:
 bool IsNormalized();

public bool IsNormalized();

member this.IsNormalized : unit -> bool

Public Function IsNormalized () As Boolean

Retouren

Boolean

true als deze tekenreeks zich in normalisatievorm C bevindt; anders, false.

Uitzonderingen

ArgumentException

Het huidige exemplaar bevat ongeldige Unicode-tekens.

Opmerkingen

Sommige Unicode-tekens hebben meerdere equivalente binaire weergaven die bestaan uit sets combinaties en/of samengestelde Unicode-tekens. Het bestaan van meerdere representaties voor één teken maakt het zoeken, sorteren, vergelijken en andere bewerkingen ingewikkeld.

De Unicode-standaard definieert een proces met de naam normalisatie dat één binaire weergave retourneert wanneer een van de equivalente binaire representaties van een teken wordt gegeven. Normalisatie kan worden uitgevoerd met verschillende algoritmen, normalisatievormen genoemd, die verschillende regels volgen. .NET ondersteunt momenteel normalisatieformulieren C, D, KC en KD.

Zie voor een beschrijving van ondersteunde Unicode-normalisatieformulieren System.Text.NormalizationForm.

Notities voor bellers

De IsNormalized methode retourneert false zodra het eerste niet-genormaliseerde teken in een tekenreeks tegenkomt. Als een tekenreeks dus niet-genormaliseerde tekens bevat, gevolgd door ongeldige Unicode-tekens, genereert de Normalize methode een ArgumentException hoewel IsNormalized retourneert false.

Zie ook

Normalize()

Van toepassing op

IsNormalized(NormalizationForm)

Geeft aan of deze tekenreeks zich in de opgegeven Unicode-normalisatievorm bevindt.

public:
 bool IsNormalized(System::Text::NormalizationForm normalizationForm);

public bool IsNormalized(System.Text.NormalizationForm normalizationForm);

member this.IsNormalized : System.Text.NormalizationForm -> bool

Public Function IsNormalized (normalizationForm As NormalizationForm) As Boolean

Parameters

normalizationForm: NormalizationForm

Een Unicode-normalisatieformulier.