internal char[] GetClassificationChars(CharClassification classification)
{
Debug.Assert(Enum.IsDefined(typeof(CharClassification), classification));
int msg;
switch (classification)
{
case CharClassification.Whitespace:
msg = NativeMethods.SCI_GETWHITESPACECHARS;
break;
case CharClassification.Word:
msg = NativeMethods.SCI_GETWORDCHARS;
break;
default:
msg = NativeMethods.SCI_GETPUNCTUATIONCHARS;
break;
}
char[] chars;
unsafe
{
byte* bp = stackalloc byte[256]; // Max possible according to Scintilla code
int length = (int)Scintilla.DirectMessage(msg, IntPtr.Zero, (IntPtr)bp);
chars = new char[length];
for (int i = 0; i < length; i++)
chars[i] = (char)bp[i];
}
return chars;
}
/// <summary>
/// Updates the classification of the characters specified.
/// </summary>
/// <param name="chars">The characters to reclassify.</param>
/// <param name="classification">The new classification for the <paramref name="chars" />.</param>
/// <remarks>
/// The default character classifications are suitable for most text and do not affect the lexing process.
/// Rather, character classifications specify how the <see cref="Scintilla" /> control interprets
/// characters for operations such as skipping or selecting a word. Specifying the classification of
/// Unicode characters is not supported.
/// </remarks>
/// <exception cref="ArgumentNullException"><paramref name="chars" /> is null.</exception>
/// <exception cref="ArgumentException">
/// One or more of the values specified in <paramref name="chars" /> is not an ASCII character.
/// </exception>
/// <exception cref="InvalidEnumArgumentException">
/// The value assigned to <paramref name="classification" /> is not one of the <see cref="CharClassification" /> values.
/// </exception>
public void ReclassifyChars(IEnumerable <char> chars, CharClassification classification)
{
if (chars == null)
{
throw new ArgumentNullException("chars");
}
if (!Enum.IsDefined(typeof(CharClassification), classification))
{
throw new InvalidEnumArgumentException("classification", (int)classification, typeof(CharClassification));
}
int msg;
switch (classification)
{
case CharClassification.Whitespace:
msg = NativeMethods.SCI_SETWHITESPACECHARS;
break;
case CharClassification.Word:
msg = NativeMethods.SCI_SETWORDCHARS;
break;
default:
msg = NativeMethods.SCI_SETPUNCTUATIONCHARS;
break;
}
List <byte> bytes = new List <byte>();
foreach (char c in chars)
{
if (c < 0 || c >= 256)
{
throw new ArgumentException(Resources.Exception_MustBeASCII, "value");
}
bytes.Add((byte)c);
}
// Null terminator
bytes.Add(0);
unsafe
{
fixed(byte *bp = bytes.ToArray())
Scintilla.DirectMessage(msg, IntPtr.Zero, (IntPtr)bp);
}
}
internal char[] GetClassificationChars(CharClassification classification)
{
Debug.Assert(Enum.IsDefined(typeof(CharClassification), classification));
int msg;
switch (classification)
{
case CharClassification.Whitespace:
msg = NativeMethods.SCI_GETWHITESPACECHARS;
break;
case CharClassification.Word:
msg = NativeMethods.SCI_GETWORDCHARS;
break;
default:
msg = NativeMethods.SCI_GETPUNCTUATIONCHARS;
break;
}
char[] chars;
unsafe
{
byte *bp = stackalloc byte[256]; // Max possible according to Scintilla code
int length = (int)Scintilla.DirectMessage(msg, IntPtr.Zero, (IntPtr)bp);
chars = new char[length];
for (int i = 0; i < length; i++)
{
chars[i] = (char)bp[i];
}
}
return(chars);
}
/// <summary>
/// Updates the classification of the characters specified.
/// </summary>
/// <param name="chars">The characters to reclassify.</param>
/// <param name="classification">The new classification for the <paramref name="chars" />.</param>
/// <remarks>
/// The default character classifications are suitable for most text and do not affect the lexing process.
/// Rather, character classifications specify how the <see cref="Scintilla" /> control interprets
/// characters for operations such as skipping or selecting a word. Specifying the classification of
/// Unicode characters is not supported.
/// </remarks>
/// <exception cref="ArgumentNullException"><paramref name="chars" /> is null.</exception>
/// <exception cref="ArgumentException">
/// One or more of the values specified in <paramref name="chars" /> is not an ASCII character.
/// </exception>
/// <exception cref="InvalidEnumArgumentException">
/// The value assigned to <paramref name="classification" /> is not one of the <see cref="CharClassification" /> values.
/// </exception>
public void ReclassifyChars(IEnumerable<char> chars, CharClassification classification)
{
if (chars == null)
throw new ArgumentNullException("chars");
if (!Enum.IsDefined(typeof(CharClassification), classification))
throw new InvalidEnumArgumentException("classification", (int)classification, typeof(CharClassification));
int msg;
switch (classification)
{
case CharClassification.Whitespace:
msg = NativeMethods.SCI_SETWHITESPACECHARS;
break;
case CharClassification.Word:
msg = NativeMethods.SCI_SETWORDCHARS;
break;
default:
msg = NativeMethods.SCI_SETPUNCTUATIONCHARS;
break;
}
List<byte> bytes = new List<byte>();
foreach (char c in chars)
{
if (c < 0 || c >= 256)
throw new ArgumentException(Resources.Exception_MustBeASCII, "value");
bytes.Add((byte)c);
}
// Null terminator
bytes.Add(0);
unsafe
{
fixed (byte* bp = bytes.ToArray())
Scintilla.DirectMessage(msg, IntPtr.Zero, (IntPtr)bp);
}
}
