public static bool CanBreakLineAt(string pszStart, int index)
{
if (index == 0 || WordWrap.IsWhiteSpace(pszStart[index]) && WordWrap.IsNonBeginningChar(pszStart[index + 1]) || index > 1 && WordWrap.IsWhiteSpace(pszStart[index - 2]) && ((int)pszStart[index - 1] == 34 && !WordWrap.IsWhiteSpace(pszStart[index])) || (!WordWrap.IsWhiteSpace(pszStart[index - 1]) && (int)pszStart[index] == 34 && WordWrap.IsWhiteSpace(pszStart[index + 1]) || !WordWrap.IsWhiteSpace(pszStart[index]) && !WordWrap.IsEastAsianChar(pszStart[index]) && (!WordWrap.IsEastAsianChar(pszStart[index - 1]) && (int)pszStart[index - 1] != 45)) || WordWrap.IsNonBeginningChar(pszStart[index]))
{
return(false);
}
else
{
return(!WordWrap.IsNonEndingChar(pszStart[index - 1]));
}
}
public static string FindNonWhiteSpaceBackward(string source, int index, out int offset)
{
while (index >= 0 && (WordWrap.IsWhiteSpace(source[index]) || WordWrap.IsLineFeed(source[index])))
{
--index;
}
offset = index;
if (index >= 0)
{
return(source.Substring(index));
}
else
{
return((string)null);
}
}
public static string FindNonWhiteSpaceForward(string text)
{
int startIndex = 0;
while (startIndex < text.Length && WordWrap.IsWhiteSpace(text[startIndex]))
{
++startIndex;
}
if (startIndex < text.Length && WordWrap.IsLineFeed(text[startIndex]))
{
++startIndex;
}
if (startIndex >= text.Length)
{
return((string)null);
}
else
{
return(text.Substring(startIndex));
}
}
public static string FindNextLine(SpriteFont spriteFont, string source, uint width, out string EOL, out int EOLOffset)
{
if (WordWrap.GetWidth == null || source == null)
{
EOL = (string)null;
EOLOffset = -1;
return((string)null);
}
else
{
int index = 0;
uint num = 0U;
for (; index < source.Length && !WordWrap.IsLineFeed(source[index]); ++index)
{
num += WordWrap.GetWidth(spriteFont, source[index]);
if (num > width)
{
break;
}
}
if (index == 0)
{
EOL = WordWrap.FindNonWhiteSpaceBackward(source, index, out EOLOffset);
return(WordWrap.FindNonWhiteSpaceForward(source.Substring(index + 1)));
}
else if (num <= width)
{
EOL = WordWrap.FindNonWhiteSpaceBackward(source, index - 1, out EOLOffset);
if (index - 1 >= 0 && WordWrap.IsLineFeed(source[index - 1]))
{
return(source.Substring(index));
}
if (index < 0 || index >= source.Length)
{
return((string)null);
}
else
{
return(WordWrap.FindNonWhiteSpaceForward(source.Substring(index)));
}
}
else
{
int startIndex = index;
for (; index > 0; --index)
{
if (WordWrap.IsWhiteSpace(source[index]))
{
EOL = WordWrap.FindNonWhiteSpaceBackward(source, index, out EOLOffset);
if (EOL != null)
{
return(WordWrap.FindNonWhiteSpaceForward(source.Substring(index + 1)));
}
index = EOLOffset + 1;
}
if (WordWrap.CanBreakLineAt(source, index))
{
break;
}
}
if (index <= 0)
{
EOL = source.Substring(startIndex - 1);
EOLOffset = startIndex - 1;
return(source.Substring(startIndex));
}
else
{
EOL = source.Substring(index - 1);
EOLOffset = index - 1;
return(WordWrap.FindNonWhiteSpaceForward(source.Substring(index)));
}
}
}
}
