5 // Patrik Torstensson (patrik.torstensson@labs2.com)
6 // Jeffrey Stedfast (fejj@ximian.com)
7 // Dan Lewis (dihlewis@yahoo.co.uk)
9 // (C) 2001 Ximian, Inc. http://www.ximian.com
14 using System.Collections;
15 using System.Globalization;
16 using System.Runtime.CompilerServices;
19 public sealed class String : IConvertible, IComparable, ICloneable, IEnumerable {
22 public static readonly String Empty = "";
24 [CLSCompliant(false), MethodImplAttribute(MethodImplOptions.InternalCall)]
25 unsafe public extern String(char *value);
27 [CLSCompliant(false), MethodImplAttribute(MethodImplOptions.InternalCall)]
28 unsafe public extern String(char *value, int sindex, int length);
30 [CLSCompliant(false), MethodImplAttribute(MethodImplOptions.InternalCall)]
31 unsafe public extern String(sbyte *value);
33 [CLSCompliant(false), MethodImplAttribute(MethodImplOptions.InternalCall)]
34 unsafe public extern String(sbyte *value, int sindex, int length);
36 [CLSCompliant(false), MethodImplAttribute(MethodImplOptions.InternalCall)]
37 unsafe public extern String(sbyte *value, int sindex, int length, Encoding enc);
39 [MethodImplAttribute(MethodImplOptions.InternalCall)]
40 public extern String(char [] val, int sindex, int length);
42 [MethodImplAttribute(MethodImplOptions.InternalCall)]
43 public extern String(char [] val);
45 [MethodImplAttribute(MethodImplOptions.InternalCall)]
46 public extern String(char c, int count);
48 [MethodImplAttribute(MethodImplOptions.InternalCall)]
49 public extern override int GetHashCode();
51 public static bool Equals(String str1, String str2) {
52 if ((Object) str1 == (Object) str2)
55 if (null == (Object) str1 || null == (Object) str2)
57 if (str1.length != str2.length)
60 return Compare(str1, 0, str2, 0, str1.length, false) == 0;
63 public static bool operator == (String str1, String str2) {
64 return Equals(str1, str2);
67 public static bool operator != (String str1, String str2) {
68 return !Equals(str1, str2);
71 public override bool Equals(Object obj) {
78 return Compare (this, (String)obj, false) == 0;
81 public bool Equals(String value) {
85 if (length != value.length)
87 return Compare (this, 0, value, 0, length, false) == 0;
90 [IndexerName("Chars")]
91 public extern char this[int index] {
92 [MethodImplAttribute(MethodImplOptions.InternalCall)]
96 public Object Clone() {
100 public TypeCode GetTypeCode () {
101 return TypeCode.String;
104 public void CopyTo(int sindex, char[] dest, int dindex, int count) {
105 // LAMESPEC: should I null-terminate?
108 throw new ArgumentNullException();
110 if (sindex < 0 || dindex < 0 || count < 0)
111 throw new ArgumentOutOfRangeException ();
113 if (sindex + count > Length)
114 throw new ArgumentOutOfRangeException ();
116 if (dindex + count > dest.Length)
117 throw new ArgumentOutOfRangeException ();
119 InternalCopyTo(sindex, dest, dindex, count);
122 public char[] ToCharArray() {
123 return ToCharArray(0, length);
126 public char[] ToCharArray(int sindex, int length) {
127 if (sindex < 0 || length < 0 || sindex + length > this.length)
128 throw new ArgumentOutOfRangeException ();
130 char [] tmp = new char[length];
132 InternalCopyTo(sindex, tmp, 0, length);
137 public String [] Split(params char [] separator) {
138 return Split(separator, Int32.MaxValue);
141 public String[] Split(char[] separator, int count) {
142 if (null == separator) {
143 separator = WhiteChars;
147 throw new ArgumentOutOfRangeException ();
150 return new String[1] { ToString() };
152 return InternalSplit(separator, count);
155 public String Substring (int sindex) {
156 if (sindex < 0 || sindex > this.length) {
157 throw new ArgumentOutOfRangeException();
160 string tmp = InternalAllocateStr(this.length - sindex);
161 InternalStrcpy(tmp, 0, this, sindex, length - sindex);
166 public String Substring (int sindex, int length) {
167 if (length < 0 || sindex < 0 || sindex + length > this.length) {
168 throw new ArgumentOutOfRangeException();
174 string tmp = InternalAllocateStr(length);
175 InternalStrcpy(tmp, 0, this, sindex, length);
180 private static readonly char[] WhiteChars = { (char) 0x9, (char) 0xA, (char) 0xB, (char) 0xC, (char) 0xD, (char) 0x20, (char) 0xA0, (char) 0x2000, (char) 0x2001, (char) 0x2002, (char) 0x2003, (char) 0x2004, (char) 0x2005,
181 (char) 0x2006, (char) 0x2007, (char) 0x2008, (char) 0x2009, (char) 0x200A, (char) 0x200B, (char) 0x3000, (char) 0xFEFF };
183 public String Trim(params char[] chars) {
184 if (null == chars || chars.Length == 0)
187 return InternalTrim(chars, 0);
190 public String TrimStart(params char[] chars) {
191 if (null == chars || chars.Length == 0)
194 return InternalTrim(chars, 1);
197 public String TrimEnd(params char[] chars) {
198 if (null == chars || chars.Length == 0)
201 return InternalTrim(chars, 2);
204 public static int Compare(String s1, String s2) {
205 return Compare(s1, s2, false);
208 public static int Compare(String s1, String s2, bool inCase) {
214 } else if (null == s2)
217 return InternalCompare(s1, 0, s2, 0, Math.Max(s1.length, s2.length), inCase);
221 public static int Compare(String s1, String s2, bool inCase, CultureInfo culture) {
222 return Compare(s1, s2, inCase);
225 public static int Compare(String s1, int i1, String s2, int i2, int length) {
226 return Compare(s1, i1, s2, i2, length, false);
229 public static int Compare(String s1, int i1, String s2, int i2, int length, bool inCase) {
235 } else if (null == s2)
238 if (length < 0 || i1 < 0 || i2 < 0)
239 throw new ArgumentOutOfRangeException ();
241 if (i1 > s1.length || i2 > s2.length)
242 throw new ArgumentOutOfRangeException ();
247 return InternalCompare(s1, i1, s2, i2, length, inCase);
251 public static int Compare(String s1, int i1, String s2, int i2, int length, bool inCase, CultureInfo culture) {
252 return Compare(s1, i1, s2, i2, length, inCase);
255 public int CompareTo(Object value) {
259 if (!(value is String))
260 throw new ArgumentException();
262 return String.Compare(this, (String) value, false);
265 public int CompareTo(String str) {
269 return Compare(this, str, false);
272 public static int CompareOrdinal(String s1, String s2) {
273 if (null == s1 || null == s2) {
274 if ((Object)s1 == (Object) s2) {
278 return (s1 == null) ? -1 : 1;
281 return InternalCompare(s1, 0, s2, 0, Math.Max(s1.length, s2.length), false);
284 public static int CompareOrdinal(String s1, int i1, String s2, int i2, int length) {
285 if (null == s1 || null == s2) {
286 if ((Object)s1 == (Object) s2) {
290 return (s1 == null) ? -1 : 1;
293 if (i1 < 0 || i2 < 0 || length < 0)
294 throw new ArgumentOutOfRangeException ();
296 if (i1 > s1.length || i2 > s2.length)
297 throw new ArgumentOutOfRangeException ();
299 return InternalCompare(s1, i1, s2, i2, length, false);
302 public bool EndsWith(String value) {
304 throw new ArgumentNullException();
306 if (value.length > this.length) {
310 return (0 == Compare(this, length - value.length, value, 0, value.length));
313 public int IndexOfAny(char [] arr) {
315 throw new ArgumentNullException();
317 return InternalIndexOfAny(arr, 0, this.length);
320 public int IndexOfAny(char [] arr, int sindex) {
322 throw new ArgumentNullException();
323 if (sindex < 0 || sindex >= this.length)
324 throw new ArgumentOutOfRangeException();
326 return InternalIndexOfAny(arr, sindex, this.length - sindex);
329 public int IndexOfAny(char [] arr, int sindex, int count) {
331 throw new ArgumentNullException();
332 if (sindex < 0 || count < 0 || sindex + count > this.length)
333 throw new ArgumentOutOfRangeException ();
335 return InternalIndexOfAny(arr, sindex, count);
338 public int IndexOf(char value) {
339 return InternalIndexOf(value, 0, this.length);
342 public int IndexOf(String value) {
343 return IndexOf(value, 0, this.length);
346 public int IndexOf(char value, int sindex) {
347 if (sindex < 0 || sindex >= this.length) {
348 throw new ArgumentOutOfRangeException();
351 return InternalIndexOf(value, sindex, this.length - sindex);
354 public int IndexOf(String value, int sindex) {
355 return IndexOf(value, sindex, this.length - sindex);
358 public int IndexOf(char value, int sindex, int count) {
359 if (sindex < 0 || count < 0 || sindex + count > this.length)
360 throw new ArgumentOutOfRangeException ();
362 if (sindex == 0 && this.length == 0)
365 return InternalIndexOf(value, sindex, count);
368 public int IndexOf(String value, int sindex, int count) {
370 throw new ArgumentNullException();
372 if (sindex < 0 || count < 0 || sindex + count > this.length)
373 throw new ArgumentOutOfRangeException ();
375 if (sindex == 0 && this.length == 0)
378 return InternalIndexOf(value, sindex, count);
381 public int LastIndexOfAny(char [] arr) {
383 throw new ArgumentNullException();
385 return InternalLastIndexOfAny(arr, this.length - 1, this.length);
388 public int LastIndexOfAny(char [] arr, int sindex) {
390 throw new ArgumentNullException();
392 if (sindex < 0 || sindex > this.length)
393 throw new ArgumentOutOfRangeException();
395 if (this.length == 0)
398 return InternalLastIndexOfAny(arr, sindex, sindex + 1);
401 public int LastIndexOfAny(char [] arr, int sindex, int count) {
403 throw new ArgumentNullException();
405 if (sindex < 0 || count < 0 || sindex > this.length || sindex - count < -1)
406 throw new ArgumentOutOfRangeException();
408 if (this.length == 0)
411 return InternalLastIndexOfAny(arr, sindex, count);
414 public int LastIndexOf(char value) {
415 return InternalLastIndexOf(value, this.length - 1, this.length);
418 public int LastIndexOf(String value) {
420 throw new ArgumentNullException();
422 return InternalLastIndexOf(value, this.length - 1, this.length);
425 public int LastIndexOf(char value, int sindex){
426 return LastIndexOf(value, sindex, sindex + 1);
429 public int LastIndexOf(String value, int sindex) {
430 return LastIndexOf(value, sindex, sindex + 1);
433 public int LastIndexOf(char value, int sindex, int count) {
434 if (count < 0 || sindex < 0)
435 throw new ArgumentOutOfRangeException ();
437 if (count > this.length || sindex > this.length)
438 throw new ArgumentOutOfRangeException ();
440 if (sindex == 0 && this.length == 0)
443 return InternalLastIndexOf(value, sindex, count);
446 public int LastIndexOf(String value, int sindex, int count) {
448 throw new ArgumentNullException();
450 if (sindex < 0 || sindex > this.length)
451 throw new ArgumentOutOfRangeException ();
453 if (count < 0 || count - sindex <= 0)
454 throw new ArgumentOutOfRangeException ();
456 if (sindex == 0 && this.length == 0)
459 return InternalLastIndexOf(value, sindex, count);
462 public String PadLeft(int width) {
463 return PadLeft(width, ' ');
466 public String PadLeft(int width, char chr) {
468 throw new ArgumentException();
470 if (width < this.length)
471 return String.Copy(this);
473 return InternalPad(width, chr, false);
476 public String PadRight(int width) {
477 return PadRight(width, ' ');
480 public String PadRight(int width, char chr) {
482 throw new ArgumentException();
484 if (width < this.length)
485 return String.Copy(this);
487 return InternalPad(width, chr, true);
490 public bool StartsWith(String value) {
492 throw new ArgumentNullException();
494 if (this.length < value.length)
497 return (0 == Compare(this, 0, value, 0 , value.length));
501 public String Replace (char oldChar, char newChar) {
502 return InternalReplace(oldChar, newChar);
505 public String Replace(String oldValue, String newValue) {
506 if (null == oldValue)
507 throw new ArgumentNullException();
509 return InternalReplace(oldValue, newValue);
512 public String Remove(int sindex, int count) {
513 if (sindex < 0 || count < 0 || sindex + count > this.length)
514 throw new ArgumentOutOfRangeException ();
516 return InternalRemove(sindex, count);
519 public String ToLower() {
520 return InternalToLower();
523 public String ToLower(CultureInfo culture) {
524 throw new NotImplementedException();
527 public String ToUpper() {
528 return InternalToUpper();
531 public String ToUpper(CultureInfo culture) {
532 throw new NotImplementedException();
535 public override String ToString() {
539 public String ToString(IFormatProvider provider) {
543 public String Trim() {
547 public static String Format(String format, Object arg0) {
548 return Format(null, format, new Object[] {arg0});
551 public static String Format(String format, Object arg0, Object arg1) {
552 return Format(null, format, new Object[] {arg0, arg1});
555 public static String Format(String format, Object arg0, Object arg1, Object arg2) {
556 return Format(null, format, new Object[] {arg0, arg1, arg2});
559 public static string Format (string format, params object[] args) {
560 return Format (null, format, args);
563 public static string Format (IFormatProvider provider, string format, params object[] args) {
564 if (format == null || args == null)
565 throw new ArgumentNullException ();
567 StringBuilder result = new StringBuilder ();
571 while (ptr < format.length) {
572 char c = format[ptr ++];
575 result.Append (format, start, ptr - start - 1);
577 // check for escaped open bracket
579 if (format[ptr] == '{') {
590 ParseFormatSpecifier (format, ref ptr, out n, out width, out left_align, out arg_format);
591 if (n >= args.Length)
592 throw new FormatException ("Index (zero based) must be greater than or equal to zero and less than the size of the argument list.");
596 object arg = args[n];
601 else if (arg is IFormattable)
602 str = ((IFormattable)arg).ToString (arg_format, provider);
604 str = arg.ToString ();
606 // pad formatted string and append to result
608 if (width > str.length) {
609 string pad = new String (' ', width - str.length);
625 else if (c == '}' && format[ptr] == '}') {
626 result.Append (format, start, ptr - start - 1);
631 if (start < format.length)
632 result.Append (format.Substring (start));
634 return result.ToString ();
637 public static String Copy (String str) {
639 throw new ArgumentNullException ();
641 int length = str.length;
643 String tmp = InternalAllocateStr(length);
644 InternalStrcpy(tmp, 0, str);
648 public static String Concat(Object obj) {
652 return obj.ToString();
655 public static String Concat(Object obj1, Object obj2) {
662 return Concat(obj1.ToString(), obj2.ToString());
665 public static String Concat(Object obj1, Object obj2, Object obj3) {
675 return Concat(obj1.ToString(), obj2.ToString(), obj3.ToString());
678 [CLSCompliant(false)]
679 public static String Concat(Object arg0, Object arg1, Object arg2, Object arg3, __arglist) {
680 throw new NotImplementedException();
683 public static String Concat(String s1, String s2) {
685 if (null == s2) { return String.Empty; }
689 if (null == s2) { return s1; }
691 String tmp = InternalAllocateStr(s1.length + s2.length);
693 InternalStrcpy(tmp, 0, s1);
694 InternalStrcpy(tmp, s1.length, s2);
699 public static String Concat(String s1, String s2, String s3) {
700 if (null == s1 && null == s2 && null == s3) {
704 if (null == s1) { s1 = String.Empty; }
705 if (null == s2) { s2 = String.Empty; }
706 if (null == s3) { s3 = String.Empty; }
708 String tmp = InternalAllocateStr(s1.length + s2.length + s3.length);
710 InternalStrcpy(tmp, 0, s1);
711 InternalStrcpy(tmp, s1.length, s2);
712 InternalStrcpy(tmp, s1.length + s2.length, s3);
717 public static String Concat(String s1, String s2, String s3, String s4) {
718 if (null == s1 && null == s2 && null == s3 && null == s4) {
722 if (null == s1) { s1 = String.Empty; }
723 if (null == s2) { s2 = String.Empty; }
724 if (null == s3) { s3 = String.Empty; }
725 if (null == s4) { s4 = String.Empty; }
727 String tmp = InternalAllocateStr(s1.length + s2.length + s3.length + s4.length);
729 InternalStrcpy(tmp, 0, s1);
730 InternalStrcpy(tmp, s1.length, s2);
731 InternalStrcpy(tmp, s1.length + s2.length, s3);
732 InternalStrcpy(tmp, s1.length + s2.length + s3.length, s4);
737 public static String Concat(params Object[] args) {
739 int len, i, currentpos;
742 throw new ArgumentNullException ();
744 strings = new string [args.Length];
747 foreach (object arg in args) {
748 /* use Empty for each null argument */
750 strings[i] = String.Empty;
752 strings[i] = arg.ToString ();
753 len += strings[i].length;
762 String tmp = InternalAllocateStr(len);
763 for (i = 0; i < strings.Length; i++) {
764 InternalStrcpy(tmp, currentpos, strings[i]);
765 currentpos += strings[i].length;
771 public static String Concat(params String[] values) {
772 int len, i, currentpos;
775 throw new ArgumentNullException ();
778 foreach (string value in values)
779 len += value != null ? value.length : 0;
786 String tmp = InternalAllocateStr(len);
787 for (i = 0; i < values.Length; i++) {
788 if (values[i] == null)
791 InternalStrcpy(tmp, currentpos, values[i]);
792 currentpos += values[i].length;
798 public String Insert(int sindex, String value) {
800 throw new ArgumentNullException();
802 if (sindex < 0 || sindex > this.length)
803 throw new ArgumentOutOfRangeException();
805 return InternalInsert(sindex, value);
809 public static string Intern (string str) {
811 throw new ArgumentNullException ();
813 return InternalIntern(str);
816 public static string IsInterned (string str) {
818 throw new ArgumentNullException();
820 return InternalIsInterned(str);
823 public static string Join (string separator, string [] value) {
825 throw new ArgumentNullException ();
827 return Join(separator, value, 0, value.Length);
830 public static string Join(string separator, string[] value, int sindex, int count) {
832 throw new ArgumentNullException ();
834 if (sindex + count > value.Length)
835 throw new ArgumentOutOfRangeException ();
837 if (sindex == value.Length)
840 return InternalJoin(separator, value, sindex, count);
843 bool IConvertible.ToBoolean (IFormatProvider provider) {
844 return Convert.ToBoolean (this);
847 byte IConvertible.ToByte (IFormatProvider provider) {
848 return Convert.ToByte (this);
851 char IConvertible.ToChar (IFormatProvider provider) {
852 return Convert.ToChar (this);
855 DateTime IConvertible.ToDateTime (IFormatProvider provider) {
856 return Convert.ToDateTime (this);
859 decimal IConvertible.ToDecimal (IFormatProvider provider) {
860 return Convert.ToDecimal (this);
863 double IConvertible.ToDouble (IFormatProvider provider) {
864 return Convert.ToDouble (this);
867 short IConvertible.ToInt16 (IFormatProvider provider) {
868 return Convert.ToInt16 (this);
871 int IConvertible.ToInt32 (IFormatProvider provider) {
872 return Convert.ToInt32 (this);
875 long IConvertible.ToInt64 (IFormatProvider provider) {
876 return Convert.ToInt64 (this);
879 [CLSCompliant(false)]
880 sbyte IConvertible.ToSByte (IFormatProvider provider) {
881 return Convert.ToSByte (this);
884 float IConvertible.ToSingle (IFormatProvider provider) {
885 return Convert.ToSingle (this);
887 string IConvertible.ToString (IFormatProvider format) {
891 object IConvertible.ToType (Type conversionType, IFormatProvider provider) {
892 return Convert.ToType (this, conversionType, provider);
895 [CLSCompliant(false)]
896 ushort IConvertible.ToUInt16 (IFormatProvider provider) {
897 return Convert.ToUInt16 (this);
900 [CLSCompliant(false)]
901 uint IConvertible.ToUInt32 (IFormatProvider provider) {
902 return Convert.ToUInt32 (this);
905 [CLSCompliant(false)]
906 ulong IConvertible.ToUInt64 (IFormatProvider provider) {
907 return Convert.ToUInt64 (this);
910 TypeCode IConvertible.GetTypeCode () {
911 return TypeCode.String;
920 public CharEnumerator GetEnumerator () {
921 return new CharEnumerator (this);
924 IEnumerator IEnumerable.GetEnumerator () {
925 return new CharEnumerator (this);
928 private static void ParseFormatSpecifier (string str, ref int ptr, out int n, out int width, out bool left_align, out string format) {
929 // parses format specifier of form:
935 // N = argument number (non-negative integer)
937 n = ParseDecimal (str, ref ptr);
939 throw new FormatException ("Input string was not in correct format.");
941 // M = width (non-negative integer)
943 if (str[ptr] == ',') {
944 left_align = (str[++ ptr] == '-');
948 width = ParseDecimal (str, ref ptr);
950 throw new FormatException ("Input string was not in correct format.");
957 // F = argument format (string)
959 if (str[ptr] == ':') {
961 while (str[ptr] != '}')
964 format = str.Substring (start, ptr - start);
969 if (str[ptr ++] != '}')
970 throw new FormatException ("Input string was not in correct format.");
972 catch (IndexOutOfRangeException) {
973 throw new FormatException ("Input string was not in correct format.");
977 private static int ParseDecimal (string str, ref int ptr) {
982 if (c < '0' || '9' < c)
985 n = n * 10 + c - '0';
996 [MethodImplAttribute(MethodImplOptions.InternalCall)]
997 private extern static string InternalJoin(string separator, string[] value, int sindex, int count);
999 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1000 private extern String InternalInsert(int sindex, String value);
1002 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1003 private extern String InternalReplace(char oldChar, char newChar);
1005 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1006 private extern String InternalReplace(String oldValue, String newValue);
1008 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1009 private extern String InternalRemove(int sindex, int count);
1011 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1012 private extern void InternalCopyTo(int sindex, char[] dest, int dindex, int count);
1014 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1015 private extern String[] InternalSplit(char[] separator, int count);
1017 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1018 private extern String InternalTrim(char[] chars, int typ);
1020 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1021 private extern int InternalIndexOf(char value, int sindex, int count);
1023 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1024 private extern int InternalIndexOf(string value, int sindex, int count);
1026 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1027 private extern int InternalIndexOfAny(char [] arr, int sindex, int count);
1029 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1030 private extern int InternalLastIndexOf(char value, int sindex, int count);
1032 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1033 private extern int InternalLastIndexOf(String value, int sindex, int count);
1035 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1036 private extern int InternalLastIndexOfAny(char [] anyOf, int sindex, int count);
1038 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1039 private extern String InternalPad(int width, char chr, bool right);
1041 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1042 private extern String InternalToLower();
1044 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1045 private extern String InternalToUpper();
1047 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1048 private extern static String InternalAllocateStr(int length);
1050 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1051 private extern static void InternalStrcpy(String dest, int destPos, String src);
1053 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1054 private extern static void InternalStrcpy(String dest, int destPos, String src, int startPos, int count);
1056 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1057 private extern static string InternalIntern(string str);
1059 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1060 private extern static string InternalIsInterned(string str);
1062 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1063 private extern static int InternalCompare(String s1, int i1, String s2, int i2, int length, bool inCase);