internal static PythonList /*!*/ SplitInternal(IList <byte> /*!*/ bytes, byte[] seps, int maxsplit, Func <List <byte> /*!*/, object> /*!*/ ctor)
{
Debug.Assert(ctor != null);
if (bytes.Count == 0)
{
return(SplitEmptyString(seps != null, ctor));
}
else
{
List <byte>[] r = null;
// If the optional second argument sep is absent or None, the words are separated
// by arbitrary strings of whitespace characters (space, tab, newline, return, formfeed);
r = bytes.Split(seps, (maxsplit < 0) ? Int32.MaxValue : maxsplit + 1,
GetStringSplitOptions(seps));
PythonList ret = PythonOps.MakeEmptyList(r.Length);
foreach (List <byte> s in r)
{
ret.AddNoLock(ctor(s));
}
return(ret);
}
}
internal static PythonList /*!*/ Split(this IList <byte> /*!*/ bytes, IList <byte> sep, int maxsplit, Func <List <byte> /*!*/, object> /*!*/ ctor)
{
Debug.Assert(ctor != null);
if (sep == null)
{
if (maxsplit == 0)
{
// Corner case for CPython compatibility
PythonList result = PythonOps.MakeEmptyList(1);
result.AddNoLock(ctor(bytes.LeftStrip() ?? bytes as List <byte> ?? new List <byte>(bytes)));
return(result);
}
return(SplitInternal(bytes, (byte[])null, maxsplit, ctor));
}
if (sep.Count == 0)
{
throw PythonOps.ValueError("empty separator");
}
else if (sep.Count == 1)
{
return(SplitInternal(bytes, new byte[] { sep[0] }, maxsplit, ctor));
}
else
{
return(SplitInternal(bytes, sep, maxsplit, ctor));
}
}
static PythonList SplitEmptyString(bool separators, Func <List <byte>, object> ctor)
{
PythonList ret = PythonOps.MakeEmptyList(1);
if (separators)
{
ret.AddNoLock(ctor(new List <byte>(0)));
}
return(ret);
}
private static PythonList /*!*/ SplitEmptyString(bool separators, Func <List <byte> /*!*/, object> /*!*/ ctor)
{
Debug.Assert(ctor != null);
PythonList ret = PythonOps.MakeEmptyList(1);
if (separators)
{
ret.AddNoLock(ctor(new List <byte>(0)));
}
return(ret);
}
internal static PythonList /*!*/ SplitInternal(this IList <byte> /*!*/ bytes, IList <byte> /*!*/ separator, int maxsplit, Func <List <byte> /*!*/, object> /*!*/ ctor)
{
Debug.Assert(ctor != null);
if (bytes.Count == 0)
{
return(SplitEmptyString(separator != null, ctor));
}
List <byte>[] r = bytes.Split(separator, (maxsplit < 0) ? Int32.MaxValue : maxsplit + 1, GetStringSplitOptions(separator));
PythonList ret = PythonOps.MakeEmptyList(r.Length);
foreach (List <byte> s in r)
{
ret.AddNoLock(ctor(s));
}
return(ret);
}
internal static PythonList SplitInternal(this IList <byte> bytes, IList <byte>?separator, int maxsplit, Func <List <byte>, IList <byte> > ctor)
{
if (bytes.Count == 0)
{
return(SplitEmptyString(separator != null, ctor));
}
// If the optional second argument sep is absent or None, the words are separated
// by arbitrary strings of whitespace characters (space, tab, newline, return, formfeed);
List <byte>[] r = bytes.Split(separator, (maxsplit < 0) ? Int32.MaxValue : maxsplit + 1, GetStringSplitOptions(separator));
PythonList ret = PythonOps.MakeEmptyList(r.Length);
foreach (List <byte> s in r)
{
ret.AddNoLock(ctor(s));
}
return(ret);