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Added support for a start offset on byte arrays.

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This commit is contained in:
Natalia Portillo
2017-08-22 03:40:12 +01:00
parent 7a5d78637b
commit 2d0e5a81c4
1 changed files with 12 additions and 12 deletions
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24
StringHandlers.cs
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@@ -53,14 +53,14 @@ namespace DiscImageChef
/// <returns>The corresponding C# string</returns>
/// <param name="CString">A null-terminated (aka C string) byte array in the specified encoding</param>
/// <param name="encoding">Encoding.</param>
public static string CToString(byte[] CString, Encoding encoding, bool twoBytes = false)
public static string CToString(byte[] CString, Encoding encoding, bool twoBytes = false, int start = 0)
{
if(CString == null)
return null;
int len = 0;
for(int i = 0; i < CString.Length; i++)
for(int i = start; i < CString.Length; i++)
{
if(CString[i] == 0)
{
@@ -82,7 +82,7 @@ namespace DiscImageChef
}
byte[] dest = new byte[len];
Array.Copy(CString, 0, dest, 0, len);
Array.Copy(CString, start, dest, 0, len);
return len == 0 ? "" : encoding.GetString(dest);
}
@@ -103,15 +103,15 @@ namespace DiscImageChef
/// <returns>The corresponding C# string</returns>
/// <param name="PascalString">A length-prefixed (aka Pascal string) ASCII byte array</param>
/// <param name="encoding">Encoding.</param>
public static string PascalToString(byte[] PascalString, Encoding encoding)
public static string PascalToString(byte[] PascalString, Encoding encoding, int start = 0)
{
if(PascalString == null)
return null;
byte length = PascalString[0];
byte length = PascalString[start];
int len = 0;
for(int i = 1; i < length + 1 && i < PascalString.Length; i++)
for(int i = start + 1; i < length + 1 && i < PascalString.Length; i++)
{
if(PascalString[i] == 0)
break;
@@ -120,7 +120,7 @@ namespace DiscImageChef
}
byte[] dest = new byte[len];
Array.Copy(PascalString, 1, dest, 0, len);
Array.Copy(PascalString, start + 1, dest, 0, len);
return len == 0 ? "" : encoding.GetString(dest);
}
@@ -141,16 +141,16 @@ namespace DiscImageChef
/// <returns>The corresponding C# string</returns>
/// <param name="SpacePaddedString">A space (' ', 0x20, ASCII SPACE) padded ASCII byte array</param>
/// <param name="encoding">Encoding.</param>
public static string SpacePaddedToString(byte[] SpacePaddedString, Encoding encoding)
public static string SpacePaddedToString(byte[] SpacePaddedString, Encoding encoding, int start = 0)
{
if(SpacePaddedString == null)
return null;
int len = 0;
int len = start;
for(int i = SpacePaddedString.Length; i >= 0; i--)
for(int i = SpacePaddedString.Length; i >= start; i--)
{
if(i == 0)
if(i == start)
return "";
if(SpacePaddedString[i - 1] != 0x20)
@@ -160,7 +160,7 @@ namespace DiscImageChef
}
}
return len == 0 ? "" : encoding.GetString(SpacePaddedString, 0, len);
return len == 0 ? "" : encoding.GetString(SpacePaddedString, start, len);
}
/// <summary>