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using System;
using System.Text;
namespace Org.BouncyCastle.Utilities
{
/// <summary> General string utilities.</summary>
public abstract class Strings
{
public static string ToUpperCase(string original)
{
bool changed = false;
char[] chars = original.ToCharArray();
for (int i = 0; i != chars.Length; i++)
{
char ch = chars[i];
if ('a' <= ch && 'z' >= ch)
{
changed = true;
chars[i] = (char)(ch - 'a' + 'A');
}
}
if (changed)
{
return new String(chars);
}
return original;
}
internal static bool IsOneOf(string s, params string[] candidates)
{
foreach (string candidate in candidates)
{
if (s == candidate)
return true;
}
return false;
}
public static string FromByteArray(
byte[] bs)
{
char[] cs = new char[bs.Length];
for (int i = 0; i < cs.Length; ++i)
{
cs[i] = Convert.ToChar(bs[i]);
}
return new string(cs);
}
public static byte[] ToByteArray(
char[] cs)
{
byte[] bs = new byte[cs.Length];
for (int i = 0; i < bs.Length; ++i)
{
bs[i] = Convert.ToByte(cs[i]);
}
return bs;
}
public static byte[] ToByteArray(
string s)
{
byte[] bs = new byte[s.Length];
for (int i = 0; i < bs.Length; ++i)
{
bs[i] = Convert.ToByte(s[i]);
}
return bs;
}
public static string FromAsciiByteArray(
byte[] bytes)
{
#if PORTABLE
// TODO Check for non-ASCII bytes in input?
return Encoding.UTF8.GetString(bytes, 0, bytes.Length);
#else
return Encoding.ASCII.GetString(bytes, 0, bytes.Length);
#endif
}
public static byte[] ToAsciiByteArray(
char[] cs)
{
#if PORTABLE
// TODO Check for non-ASCII characters in input?
return Encoding.UTF8.GetBytes(cs);
#else
return Encoding.ASCII.GetBytes(cs);
#endif
}
public static byte[] ToAsciiByteArray(
string s)
{
#if PORTABLE
// TODO Check for non-ASCII characters in input?
return Encoding.UTF8.GetBytes(s);
#else
return Encoding.ASCII.GetBytes(s);
#endif
}
public static string FromUtf8ByteArray(
byte[] bytes)
{
return Encoding.UTF8.GetString(bytes, 0, bytes.Length);
}
public static byte[] ToUtf8ByteArray(
char[] cs)
{
return Encoding.UTF8.GetBytes(cs);
}
public static byte[] ToUtf8ByteArray(
string s)
{
return Encoding.UTF8.GetBytes(s);
}
}
}
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