// Token: 0x06003532 RID: 13618 RVA: 0x000F0E88 File Offset: 0x000EF088
internal static bool IsAtWordBoundary(char[] text, int position, LogicalDirection insideWordDirection)
{
SelectionWordBreaker.CharClass[] classes = SelectionWordBreaker.GetClasses(text);
if (insideWordDirection == LogicalDirection.Backward)
{
if (position == text.Length)
{
return(true);
}
if (position == 0 || SelectionWordBreaker.IsWhiteSpace(text[position - 1], classes[position - 1]))
{
return(false);
}
}
else
{
if (position == 0)
{
return(true);
}
if (position == text.Length || SelectionWordBreaker.IsWhiteSpace(text[position], classes[position]))
{
return(false);
}
}
ushort[] array = new ushort[2];
SafeNativeMethods.GetStringTypeEx(0U, 4U, new char[]
{
text[position - 1],
text[position]
}, 2, array);
return(SelectionWordBreaker.IsWordBoundary(text[position - 1], text[position]) || (!SelectionWordBreaker.IsSameClass(array[0], classes[position - 1], array[1], classes[position]) && !SelectionWordBreaker.IsMidLetter(text, position - 1, classes) && !SelectionWordBreaker.IsMidLetter(text, position, classes)));
}
// Token: 0x06003539 RID: 13625 RVA: 0x000F1060 File Offset: 0x000EF260
private static SelectionWordBreaker.CharClass[] GetClasses(char[] text)
{
SelectionWordBreaker.CharClass[] array = new SelectionWordBreaker.CharClass[text.Length];
for (int i = 0; i < text.Length; i++)
{
char c = text[i];
SelectionWordBreaker.CharClass charClass;
if (c < 'Ā')
{
charClass = (SelectionWordBreaker.CharClass)SelectionWordBreaker._latinClasses[(int)c];
}
else if (SelectionWordBreaker.IsKorean(c))
{
charClass = SelectionWordBreaker.CharClass.Alphanumeric;
}
else if (SelectionWordBreaker.IsThai(c))
{
charClass = SelectionWordBreaker.CharClass.Alphanumeric;
}
else if (c == '')
{
charClass = (SelectionWordBreaker.CharClass.Blank | SelectionWordBreaker.CharClass.WBF_BREAKAFTER);
}
else
{
ushort[] array2 = new ushort[1];
SafeNativeMethods.GetStringTypeEx(0U, 1U, new char[]
{
c
}, 1, array2);
if ((array2[0] & 8) != 0)
{
if ((array2[0] & 64) != 0)
{
charClass = (SelectionWordBreaker.CharClass.Blank | SelectionWordBreaker.CharClass.WBF_ISWHITE);
}
else
{
charClass = (SelectionWordBreaker.CharClass.WhiteSpace | SelectionWordBreaker.CharClass.WBF_ISWHITE);
}
}
else if ((array2[0] & 16) != 0 && !SelectionWordBreaker.IsDiacriticOrKashida(c))
{
charClass = SelectionWordBreaker.CharClass.Punctuation;
}
else
{
charClass = SelectionWordBreaker.CharClass.Alphanumeric;
}
}
array[i] = charClass;
}
return(array);
}
// Token: 0x06003537 RID: 13623 RVA: 0x000F0FD4 File Offset: 0x000EF1D4
private static bool IsSameClass(ushort preceedingType3, SelectionWordBreaker.CharClass preceedingClass, ushort followingType3, SelectionWordBreaker.CharClass followingClass)
{
bool result = false;
if (SelectionWordBreaker.IsIdeographicCharType(preceedingType3) && SelectionWordBreaker.IsIdeographicCharType(followingType3))
{
ushort num = (preceedingType3 & 496) ^ (followingType3 & 496);
result = ((preceedingType3 & 240) != 0 && (num == 0 || num == 128 || num == 32 || num == 160));
}
else if (!SelectionWordBreaker.IsIdeographicCharType(preceedingType3) && !SelectionWordBreaker.IsIdeographicCharType(followingType3))
{
result = ((preceedingClass & SelectionWordBreaker.CharClass.WBF_CLASS) == (followingClass & SelectionWordBreaker.CharClass.WBF_CLASS));
}
return(result);
}
// Token: 0x06003535 RID: 13621 RVA: 0x000F0F54 File Offset: 0x000EF154
private static bool IsMidLetter(char[] text, int index, SelectionWordBreaker.CharClass[] classes)
{
Invariant.Assert(text.Length == classes.Length);
return((text[index] == '\'' || text[index] == '’' || text[index] == '') && index > 0 && index + 1 < classes.Length && ((classes[index - 1] == SelectionWordBreaker.CharClass.Alphanumeric && classes[index + 1] == SelectionWordBreaker.CharClass.Alphanumeric) || (text[index] == '"' && SelectionWordBreaker.IsHebrew(text[index - 1]) && SelectionWordBreaker.IsHebrew(text[index + 1]))));
}
// Token: 0x0600353E RID: 13630 RVA: 0x000F1183 File Offset: 0x000EF383
private static bool IsHebrew(char ch)
{
return(SelectionWordBreaker.IsInRange(1488U, ch, 1522U));
}
// Token: 0x0600353D RID: 13629 RVA: 0x000F1171 File Offset: 0x000EF371
private static bool IsThai(char ch)
{
return(SelectionWordBreaker.IsInRange(3584U, ch, 3711U));
}
// Token: 0x0600353C RID: 13628 RVA: 0x000F115F File Offset: 0x000EF35F
private static bool IsKorean(char ch)
{
return(SelectionWordBreaker.IsInRange(44032U, ch, 55295U));
}