internal SplitEnumerator(Ps <T> ps, T separator)
{
pointer = ps.Pointer;
length = ps.Length;
this.separator = separator;
Current = default;
}
public int GetHashCode(Ps <Utf8Byte> str)
{
if (IgnoreCase)
{
return(GetHashCodeWithIgnoreCase(str));
}
return(StringHelper.GetHashCode(str));
}
public int ElementAt(Ps <Utf8Byte> str, int index)
{
if (IgnoreCase)
{
return(ToLower(str.Pointer[index]));
}
return(str.Pointer[index]);
}
public bool Equals(Ps <Utf8Byte> x, Ps <Utf8Byte> y)
{
if (IgnoreCase)
{
return(EqualsWithIgnoreCase(x, y));
}
return(StringHelper.Equals(x, y));
}
public static int GetHashCode(Ps <char> utf16)
{
int r = 0;
for (int i = 0; i < utf16.Length; ++i)
{
r ^= (utf16.Pointer[i] + i) * Mult;
}
return(r);
}
public static int GetHashCodeWithIgnoreCase(Ps <Utf8Byte> utf8)
{
int r = 0;
for (int i = 0; i < utf8.Length; ++i)
{
r ^= (ToLower(utf8.Pointer[i]) + i) * Mult;
}
return(r);
}
public static int GetHashCode(Ps <Utf8Byte> utf8)
{
int r = 0;
for (int i = 0; i < utf8.Length; ++i)
{
r ^= (utf8.Pointer[i] + i) * Mult;
}
return(r);
}
public static bool Equals(Ps <Utf8Byte> utf8x, Ps <Utf8Byte> utf8y)
{
if (utf8x.Length != utf8y.Length)
{
return(false);
}
var i = utf8x.Length;
while (i >= 8)
{
i -= 8;
if (*(long *)(utf8x.Pointer + i) != *(long *)(utf8y.Pointer + i))
{
return(false);
}
}
if (i >= 4)
{
i -= 4;
if (*(int *)(utf8x.Pointer + i) != *(int *)(utf8y.Pointer + i))
{
return(false);
}
}
if (i >= 2)
{
i -= 2;
if (*(short *)(utf8x.Pointer + i) != *(short *)(utf8y.Pointer + i))
{
return(false);
}
}
if (i >= 1)
{
if (*(utf8x.Pointer) != *(utf8y.Pointer))
{
return(false);
}
}
return(true);
}
public static bool EqualsWithIgnoreCase(Ps <char> utf16, string str)
{
if (utf16.Length != str.Length)
{
return(false);
}
for (int i = 0; i < utf16.Length; i++)
{
if (utf16.Pointer[i] != str[i] && ToLower(utf16.Pointer[i]) != ToLower(str[i]))
{
return(false);
}
}
return(true);
}
public static bool EqualsWithIgnoreCase(Ps <Utf8Byte> utf8x, Ps <Utf8Byte> utf8y)
{
if (utf8x.Length != utf8y.Length)
{
return(false);
}
for (int i = 0; i < utf8x.Length; i++)
{
if (utf8x.Pointer[i] != utf8y.Pointer[i] && ToLower(utf8x.Pointer[i]) != ToLower(utf8y.Pointer[i]))
{
return(false);
}
}
return(true);
}
public static bool Equals(Ps <char> utf16x, Ps <char> utf16y)
{
if (utf16x.Length != utf16y.Length)
{
return(false);
}
var i = utf16x.Length;
while (i >= 4)
{
i -= 4;
if (*(long *)(utf16x.Pointer + i) != *(long *)(utf16y.Pointer + i))
{
return(false);
}
}
if (i >= 2)
{
i -= 2;
if (*(int *)(utf16x.Pointer + i) != *(int *)(utf16y.Pointer + i))
{
return(false);
}
}
if (i >= 1)
{
if (*(utf16x.Pointer) != *(utf16y.Pointer))
{
return(false);
}
}
return(true);
}
/// <summary>
/// 移动至下个段落。
/// </summary>
/// <returns></returns>
public bool MoveNext()
{
if (length > 0)
{
var count = 0;
while (count < length && !Equals(pointer[count], separator))
{
++count;
}
Current = new Ps <T>(pointer, count);
++count;
pointer += count;
length -= count;
return(true);
}
return(false);
}
public static char CharAt(this Ps <char> str, int index) => str.Pointer[index];
public int GetLength(Ps <char> str)
{
return(str.Length);
}
public static bool EqualsWithIgnoreCase(Ps <Utf8Byte> utf8, string str) => Equals((byte *)utf8.Pointer, utf8.Length, ref GetRawStringData(str), str.Length, true);
/// <summary>
/// 比较两个连续内存是否完全相等。
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public bool Equals(Ps <T> other)
{
return(other.Length == Length && other.Pointer == Pointer);
}
/// <summary>
/// 尝试将字符串解析为枚举值。
/// </summary>
/// <typeparam name="T">枚举类型</typeparam>
/// <param name="str">字符串</param>
/// <param name="value">返回枚举值</param>
/// <returns>返回是否解析成功</returns>
public static unsafe bool TryParseEnum <T>(Ps <char> str, out T value) where T : struct, Enum
{
const char NumberMin = '0';
const char NumberMax = '9';
if (str.Length < 0)
{
goto False;
}
switch (str.Pointer[0])
{
case NumberHelper.NegativeSign:
case NumberHelper.PositiveSign:
case var digit when digit >= NumberMin && digit <= NumberMax:
goto Number;
}
ulong val = 0;
var spliter = str.Split(EnumParsingSeperator);
Continue:
while (spliter.MoveNext())
{
var item = spliter.Current;
item = StringHelper.Trim(item.Pointer, item.Length);
foreach (var(bits, name) in EnumInterface <T> .Items)
{
if (StringHelper.EqualsWithIgnoreCase(item, name))
{
val |= bits;
goto Continue;
}
}
if (val != 0)
{
goto False;
}
else
{
goto Number;
}
}
value = AsEnum <T>(val);
return(true);
Number:
var numberInfo = NumberHelper.GetNumberInfo(str.Pointer, str.Length, 16);
if (numberInfo.IsNumber && !numberInfo.HaveFractional && !numberInfo.HaveExponent && numberInfo.End == str.Length && numberInfo.IsCommonRadix(out var radix))
{
value = numberInfo.IsNegative
? AsEnum <T>((ulong)numberInfo.ToInt64(radix))
: AsEnum <T>(numberInfo.ToUInt64(radix));
return(true);
}
False:
value = default;
return(false);
}
public static int GetLength(this Ps <char> utf16) => utf16.Length;
public static string ToStringEx(this Ps <Utf8Byte> utf8)
{
var chars = HGlobalCacheExtensions.CharsPool.Current().Grow(GetUtf8MaxCharsLength(utf8.Length)).First;
return(ToString(chars, GetUtf8Chars((byte *)utf8.Pointer, utf8.Length, ref chars[0])));
}
public static string ToStringEx(this Ps <char> utf16)
{
return(ToString(utf16.Pointer, utf16.Length));
}
public static int GetLength(this Ps <Utf8Byte> utf8) => utf8.Length;
public int GetLength(Ps <Utf8Byte> str)
{
return(str.Length);
}
public static Utf8Byte CharAt(this Ps <Utf8Byte> str, int index) => str.Pointer[index];
