playtest-unity/playtest/Library/PackageCache/com.unity.textmeshpro@3.0.6/Scripts/Runtime/TMP_TextParsingUtilities.cs

147 lines
4.2 KiB
C#
Raw Normal View History

2023-06-19 23:21:21 -04:00
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
namespace TMPro
{
public class TMP_TextParsingUtilities
{
private static readonly TMP_TextParsingUtilities s_Instance = new TMP_TextParsingUtilities();
/// <summary>
/// Default constructor
/// </summary>
static TMP_TextParsingUtilities() { }
/// <summary>
/// Get a singleton instance of the TextModuleUtilities.
/// </summary>
public static TMP_TextParsingUtilities instance
{
get { return s_Instance; }
}
/// <summary>
/// Function returning the hashcode value of a given string.
/// </summary>
public static int GetHashCode(string s)
{
int hashCode = 0;
for (int i = 0; i < s.Length; i++)
hashCode = ((hashCode << 5) + hashCode) ^ ToUpperASCIIFast(s[i]);
return hashCode;
}
public static int GetHashCodeCaseSensitive(string s)
{
int hashCode = 0;
for (int i = 0; i < s.Length; i++)
hashCode = ((hashCode << 5) + hashCode) ^ s[i];
return hashCode;
}
/// <summary>
/// Table used to convert character to lowercase.
/// </summary>
const string k_LookupStringL = "-------------------------------- !-#$%&-()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[-]^_`abcdefghijklmnopqrstuvwxyz{|}~-";
/// <summary>
/// Table used to convert character to uppercase.
/// </summary>
const string k_LookupStringU = "-------------------------------- !-#$%&-()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[-]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~-";
/// <summary>
/// Get lowercase version of this ASCII character.
/// </summary>
//[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static char ToLowerASCIIFast(char c)
{
if (c > k_LookupStringL.Length - 1)
return c;
return k_LookupStringL[c];
}
/// <summary>
/// Get uppercase version of this ASCII character.
/// </summary>
//[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static char ToUpperASCIIFast(char c)
{
if (c > k_LookupStringU.Length - 1)
return c;
return k_LookupStringU[c];
}
/// <summary>
/// Get uppercase version of this ASCII character.
/// </summary>
//[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static uint ToUpperASCIIFast(uint c)
{
if (c > k_LookupStringU.Length - 1)
return c;
return k_LookupStringU[(int)c];
}
/// <summary>
/// Get lowercase version of this ASCII character.
/// </summary>
//[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static uint ToLowerASCIIFast(uint c)
{
if (c > k_LookupStringL.Length - 1)
return c;
return k_LookupStringL[(int)c];
}
/// <summary>
/// Check if Unicode is High Surrogate
/// </summary>
/// <param name="c"></param>
/// <returns></returns>
//[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static bool IsHighSurrogate(uint c)
{
return c > 0xD800 && c < 0xDBFF;
}
/// <summary>
/// Check if Unicode is Low Surrogate
/// </summary>
/// <param name="c"></param>
/// <returns></returns>
//[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static bool IsLowSurrogate(uint c)
{
return c > 0xDC00 && c < 0xDFFF;
}
/// <summary>
///
/// </summary>
/// <param name="highSurrogate"></param>
/// <param name="lowSurrogate"></param>
/// <returns></returns>
internal static uint ConvertToUTF32(uint highSurrogate, uint lowSurrogate)
{
return ((highSurrogate - CodePoint.HIGH_SURROGATE_START) * 0x400) + ((lowSurrogate - CodePoint.LOW_SURROGATE_START) + CodePoint.UNICODE_PLANE01_START);
}
}
}