| public static uset_addString ( IntPtr set, string str, int strLen ) : void | ||
| set | IntPtr | The Unicode set to which to add the string |
| str | string | The string to add |
| strLen | int | The length of the string or -1 if null |
| return | void | |
/// <summary>
/// Returns a string representation of this Unicode set
/// </summary>
/// <param name="set">Unicode set to convert. Null set throws an exception</param>
/// <returns>pattern string</returns>
public static string ToPattern(IEnumerable <string> set)
{
if (set == null)
{
throw new ArgumentNullException("set");
}
// uset_openEmpty unavailable, so this is equivalent
IntPtr uset = NativeMethods.uset_open('1', '0');
try
{
foreach (string str in set)
{
if (!string.IsNullOrEmpty(str))
{
if (str.Length == 1)
{
NativeMethods.uset_add(uset, str[0]);
}
else
{
NativeMethods.uset_addString(uset, str, str.Length);
}
}
}
var err = ErrorCode.ZERO_ERROR;
int resultCapacity = NativeMethods.uset_toPattern(uset, IntPtr.Zero, 0, true, ref err);
IntPtr buffer = Marshal.AllocCoTaskMem(resultCapacity * 2);
try
{
err = ErrorCode.ZERO_ERROR;
resultCapacity = NativeMethods.uset_toPattern(uset, buffer, resultCapacity, true, ref err);
if (err > ErrorCode.NoErrors)
{
throw new Exception("UnicodeSet.ToPattern() failed with code " + err);
}
return(Marshal.PtrToStringUni(buffer, resultCapacity));
}
finally
{
Marshal.FreeCoTaskMem(buffer);
}
}
finally
{
NativeMethods.uset_close(uset);
}
}
/// <summary>
/// Returns a string representation of this Unicode set
/// </summary>
/// <param name="set">Unicode set to convert. Null set throws an exception</param>
/// <returns>pattern string</returns>
public static string ToPattern(IEnumerable <string> set)
{
if (set == null)
{
throw new ArgumentNullException(nameof(set));
}
// uset_openEmpty unavailable, so this is equivalent
IntPtr uset = NativeMethods.uset_open('1', '0');
try
{
foreach (string str in set)
{
if (!string.IsNullOrEmpty(str))
{
if (str.Length == 1)
{
NativeMethods.uset_add(uset, str.First());
}
else
{
NativeMethods.uset_addString(uset, str, str.Length);
}
}
}
return(NativeMethods.GetUnicodeString((ptr, length) =>
{
length = NativeMethods.uset_toPattern(uset, ptr, length, true, out var err);
return new Tuple <ErrorCode, int>(err, length);
}));
}
finally
{
NativeMethods.uset_close(uset);
}
}