public static string MakeInitSmall(string s, TextInfo textInfo)
{
#if DEBUG
if (s == null)
{
throw new ArgumentNullException(nameof(s));
}
if (textInfo == null)
{
throw new ArgumentNullException(nameof(textInfo));
}
#endif
if (s.Length == 0)
{
return(s);
}
var actualFirstLetter = s[0];
var expectedFirstLetter = textInfo.ToLower(actualFirstLetter);
if (expectedFirstLetter == actualFirstLetter)
{
return(s);
}
if (s.Length == 1)
{
return(expectedFirstLetter.ToString());
}
var builder = StringBuilderPool.Get(s, s.Length);
builder[0] = expectedFirstLetter;
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string WithoutIndex(this string @this, int index)
{
#if DEBUG
if (@this == null)
{
throw new ArgumentNullException(nameof(@this));
}
if (index < 0)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
if (index >= @this.Length)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
#endif
if (index == 0)
{
return(@this.Substring(1));
}
var lastIndex = @this.Length - 1;
if (index == lastIndex)
{
return(@this.Substring(0, lastIndex));
}
var builder = StringBuilderPool.Get(lastIndex);
builder.Append(@this, 0, index);
builder.Append(@this, index + 1, lastIndex - index);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string Replace(this string @this, int index, int removeCount, string replacement)
{
var builder = StringBuilderPool.Get(@this, Math.Max(@this.Length, @this.Length + replacement.Length - removeCount));
builder.Replace(index, removeCount, replacement);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatString(string str0, int startIndex0, int count0, string str1, int startIndex1, int count1)
{
var builder = StringBuilderPool.Get(count0 + count1);
builder.Append(str0, startIndex0, count0);
builder.Append(str1, startIndex1, count1);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatSubstring(string str0, int startIndex0, int length0, char char1)
{
var builder = StringBuilderPool.Get(length0 + 1);
builder.Append(str0, startIndex0, length0);
builder.Append(char1);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatString(string str0, int startIndex0, int count0, string str1, string str2, int startIndex2)
{
var count2 = str2.Length - startIndex2;
var builder = StringBuilderPool.Get(count0 + str1.Length + count2);
builder.Append(str0, startIndex0, count0);
builder.Append(str1);
builder.Append(str2, startIndex2, count2);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatSubstring(string str0, int startIndex0, int length0, string str1, int startIndex1)
{
var length1 = str1.Length - startIndex1;
var builder = StringBuilderPool.Get(length0 + length1);
builder.Append(str0, startIndex0, length0);
builder.Append(str1, startIndex1, length1);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatSubstring(string str0, int startIndex0, int length0, string str1, string str2, int startIndex2)
{
var length2 = str2.Length - startIndex2;
var builder = StringBuilderPool.Get(length0 + str1.Length + length2);
builder.Append(str0, startIndex0, length0);
builder.Append(str1);
builder.Append(str2, startIndex2, length2);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatString(string str0, int startIndex0, int count0, string str1, char char2, string str3, int startIndex3)
{
var count3 = str3.Length - startIndex3;
var builder = StringBuilderPool.Get(count0 + str1.Length + 1 + count3);
builder.Append(str0, startIndex0, count0);
builder.Append(str1);
builder.Append(char2);
builder.Append(str3, startIndex3, count3);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatSubstring(string str0, int startIndex0, int length0, string str1, char char2, string str3, int startIndex3)
{
var length3 = str3.Length - startIndex3;
var builder = StringBuilderPool.Get(length0 + str1.Length + 1 + length3);
builder.Append(str0, startIndex0, length0);
builder.Append(str1);
builder.Append(char2);
builder.Append(str3, startIndex3, length3);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string RemoveChars(this string @this, CharacterSet chars)
{
if (string.IsNullOrEmpty(@this) || chars == null || chars.IsEmpty)
{
return(@this);
}
var builder = StringBuilderPool.Get(@this);
builder.RemoveChars(chars);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatString(string str0, string str1, int startIndex1, int count1)
{
if (string.IsNullOrEmpty(str0))
{
return(str1.Substring(startIndex1, count1));
}
var builder = StringBuilderPool.Get(str0.Length + count1);
builder.Append(str0);
builder.Append(str1, startIndex1, count1);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatString(string str0, int startIndex0, int count0, string str1)
{
if (count0 == 0)
{
return(str1 ?? string.Empty);
}
var builder = StringBuilderPool.Get(str1.Length + count0);
builder.Append(str0, startIndex0, count0);
builder.Append(str1);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string Without(this ReadOnlySpan <char> @this, char value)
{
var removeIndex = @this.IndexOf(value);
if (removeIndex < 0)
{
return(@this.ToString());
}
if (removeIndex == @this.Length - 1)
{
return(@this.Slice(0, removeIndex).ToString());
}
var builder = StringBuilderPool.Get(@this.Length - 1);
builder.Append(@this.Slice(0, removeIndex));
for (var i = removeIndex; i < @this.Length; i++)
{
ref readonly var c = ref @this[i];
public static string RemoveChars(this string @this, CharacterSet chars)
{
#if DEBUG
if (@this == null)
{
throw new ArgumentNullException(nameof(@this));
}
if (chars == null)
{
throw new ArgumentNullException(nameof(chars));
}
#endif
if (@this.Length == 0 || chars.IsEmpty)
{
return(@this);
}
var builder = StringBuilderPool.Get(@this);
builder.RemoveChars(chars);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string MakeTitleCase(string s, TextInfo textInfo)
{
#if DEBUG
if (s == null)
{
throw new ArgumentNullException(nameof(s));
}
if (textInfo == null)
{
throw new ArgumentNullException(nameof(textInfo));
}
#endif
if (s.Length == 0)
{
return(s);
}
var builder = StringBuilderPool.Get(textInfo.ToLower(s));
builder[0] = textInfo.ToUpper(s[0]);
return(StringBuilderPool.GetStringAndReturn(builder));
}
public static string ConcatString(this string @this, ReadOnlySpan <char> value)
{
#if DEBUG
if (@this == null)
{
throw new ArgumentNullException(nameof(@this));
}
#endif
if (@this.Length == 0)
{
return(value.ToString());
}
if (value.IsEmpty)
{
return(@this);
}
var builder = StringBuilderPool.Get(@this.Length + value.Length);
builder.Append(@this);
builder.Append(value);
return(StringBuilderPool.GetStringAndReturn(builder));
}
