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using System;
using System.Collections.Generic;
using System.Text;
namespace BigEyes.Viewer
{
public static class Path
{
// Fields
public static readonly char AltDirectorySeparatorChar = '/';
public static readonly char DirectorySeparatorChar = '\\';
private static readonly char[] InvalidFileNameChars = new char[] {
'"', '<', '>', '|', '\0', '\x0001', '\x0002', '\x0003', '\x0004', '\x0005', '\x0006', '\a', '\b', '\t', '\n', '\v',
'\f', '\r', '\x000e', '\x000f', '\x0010', '\x0011', '\x0012', '\x0013', '\x0014', '\x0015', '\x0016', '\x0017', '\x0018', '\x0019', '\x001a', '\x001b',
'\x001c', '\x001d', '\x001e', '\x001f', ':', '*', '?', '\\', '/'
};
[Obsolete("Please use GetInvalidPathChars or GetInvalidFileNameChars instead.")]
public static readonly char[] InvalidPathChars = new char[] {
'"', '<', '>', '|', '\0', '\x0001', '\x0002', '\x0003', '\x0004', '\x0005', '\x0006', '\a', '\b', '\t', '\n', '\v',
'\f', '\r', '\x000e', '\x000f', '\x0010', '\x0011', '\x0012', '\x0013', '\x0014', '\x0015', '\x0016', '\x0017', '\x0018', '\x0019', '\x001a', '\x001b',
'\x001c', '\x001d', '\x001e', '\x001f'
};
internal const int MAX_DIRECTORY_PATH = 0xf8;
internal const int MAX_PATH = 260;
internal static readonly int MaxPath = 260;
public static readonly char PathSeparator = ';';
private static readonly char[] RealInvalidPathChars = new char[] {
'"', '<', '>', '|', '\0', '\x0001', '\x0002', '\x0003', '\x0004', '\x0005', '\x0006', '\a', '\b', '\t', '\n', '\v',
'\f', '\r', '\x000e', '\x000f', '\x0010', '\x0011', '\x0012', '\x0013', '\x0014', '\x0015', '\x0016', '\x0017', '\x0018', '\x0019', '\x001a', '\x001b',
'\x001c', '\x001d', '\x001e', '\x001f'
};
public static readonly char VolumeSeparatorChar = ':';
// Methods
public static string ChangeExtension(string path, string extension)
{
if (path == null)
{
return null;
}
CheckInvalidPathChars(path);
string str = path;
int length = path.Length;
while (--length >= 0)
{
char ch = path[length];
if (ch == '.')
{
str = path.Substring(0, length);
break;
}
if (((ch == DirectorySeparatorChar) || (ch == AltDirectorySeparatorChar)) || (ch == VolumeSeparatorChar))
{
break;
}
}
if ((extension == null) || (path.Length == 0))
{
return str;
}
if ((extension.Length == 0) || (extension[0] != '.'))
{
str = str + ".";
}
return (str + extension);
}
private static bool CharArrayStartsWithOrdinal(char[] array, int numChars, string compareTo, bool ignoreCase)
{
if (numChars < compareTo.Length)
{
return false;
}
if (ignoreCase)
{
string str = new string(array, 0, compareTo.Length);
return compareTo.Equals(str, StringComparison.OrdinalIgnoreCase);
}
for (int i = 0; i < compareTo.Length; i++)
{
if (array[i] != compareTo[i])
{
return false;
}
}
return true;
}
internal static void CheckInvalidPathChars(string path)
{
for (int i = 0; i < path.Length; i++)
{
int num2 = path[i];
}
}
internal static void CheckSearchPattern(string searchPattern)
{
int num;
while ((num = searchPattern.IndexOf("..", StringComparison.Ordinal)) != -1)
{
searchPattern = searchPattern.Substring(num + 2);
}
}
public static string Combine(string path1, string path2)
{
if ((path1 == null) || (path2 == null))
{
throw new ArgumentNullException((path1 == null) ? "path1" : "path2");
}
CheckInvalidPathChars(path1);
CheckInvalidPathChars(path2);
if (path2.Length == 0)
{
return path1;
}
if (path1.Length == 0)
{
return path2;
}
if (IsPathRooted(path2))
{
return path2;
}
char ch = path1[path1.Length - 1];
if (((ch != DirectorySeparatorChar) && (ch != AltDirectorySeparatorChar)) && (ch != VolumeSeparatorChar))
{
return (path1 + DirectorySeparatorChar + path2);
}
return (path1 + path2);
}
public static string GetDirectoryName(string path)
{
if (path != null)
{
CheckInvalidPathChars(path);
int rootLength = GetRootLength(path);
if (path.Length > rootLength)
{
int length = path.Length;
if (length == rootLength)
{
return null;
}
while (((length > rootLength) && (path[--length] != DirectorySeparatorChar)) && (path[length] != AltDirectorySeparatorChar))
{
}
return path.Substring(0, length);
}
}
return null;
}
public static string GetExtension(string path)
{
if (path == null)
{
return null;
}
CheckInvalidPathChars(path);
int length = path.Length;
int startIndex = length;
while (--startIndex >= 0)
{
char ch = path[startIndex];
if (ch == '.')
{
if (startIndex != (length - 1))
{
return path.Substring(startIndex, length - startIndex);
}
return string.Empty;
}
if (((ch == DirectorySeparatorChar) || (ch == AltDirectorySeparatorChar)) || (ch == VolumeSeparatorChar))
{
break;
}
}
return string.Empty;
}
public static string GetFileName(string path)
{
if (path != null)
{
CheckInvalidPathChars(path);
int length = path.Length;
int num2 = length;
while (--num2 >= 0)
{
char ch = path[num2];
if (((ch == DirectorySeparatorChar) || (ch == AltDirectorySeparatorChar)) || (ch == VolumeSeparatorChar))
{
return path.Substring(num2 + 1, (length - num2) - 1);
}
}
}
return path;
}
public static string GetFileNameWithoutExtension(string path)
{
path = GetFileName(path);
if (path == null)
{
return null;
}
int length = path.LastIndexOf('.');
if (length == -1)
{
return path;
}
return path.Substring(0, length);
}
public static char[] GetInvalidFileNameChars()
{
return (char[])InvalidFileNameChars.Clone();
}
public static char[] GetInvalidPathChars()
{
return (char[])RealInvalidPathChars.Clone();
}
public static string GetPathRoot(string path)
{
if (path == null)
{
return null;
}
return path.Substring(0, GetRootLength(path));
}
internal static int GetRootLength(string path)
{
CheckInvalidPathChars(path);
int num = 0;
int length = path.Length;
if ((length >= 1) && IsDirectorySeparator(path[0]))
{
num = 1;
if ((length >= 2) && IsDirectorySeparator(path[1]))
{
num = 2;
int num3 = 2;
while ((num < length) && (((path[num] != DirectorySeparatorChar) && (path[num] != AltDirectorySeparatorChar)) || (--num3 > 0)))
{
num++;
}
}
return num;
}
if ((length >= 2) && (path[1] == VolumeSeparatorChar))
{
num = 2;
if ((length >= 3) && IsDirectorySeparator(path[2]))
{
num++;
}
}
return num;
}
public static bool HasExtension(string path)
{
if (path != null)
{
CheckInvalidPathChars(path);
int length = path.Length;
while (--length >= 0)
{
char ch = path[length];
if (ch == '.')
{
return (length != (path.Length - 1));
}
if (((ch == DirectorySeparatorChar) || (ch == AltDirectorySeparatorChar)) || (ch == VolumeSeparatorChar))
{
break;
}
}
}
return false;
}
internal static string InternalCombine(string path1, string path2)
{
if ((path1 == null) || (path2 == null))
{
throw new ArgumentNullException((path1 == null) ? "path1" : "path2");
}
CheckInvalidPathChars(path1);
CheckInvalidPathChars(path2);
int length = path1.Length;
if (length == 0)
{
return path2;
}
char ch = path1[length - 1];
if (((ch != DirectorySeparatorChar) && (ch != AltDirectorySeparatorChar)) && (ch != VolumeSeparatorChar))
{
return (path1 + DirectorySeparatorChar + path2);
}
return (path1 + path2);
}
internal static bool IsDirectorySeparator(char c)
{
if (c != DirectorySeparatorChar)
{
return (c == AltDirectorySeparatorChar);
}
return true;
}
public static bool IsPathRooted(string path)
{
if (path != null)
{
CheckInvalidPathChars(path);
int length = path.Length;
if (((length >= 1) && ((path[0] == DirectorySeparatorChar) || (path[0] == AltDirectorySeparatorChar))) || ((length >= 2) && (path[1] == VolumeSeparatorChar)))
{
return true;
}
}
return false;
}
}
}
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