protected static bool WrapIfTooLong(ref StringSlice text, int lineLen)
{
if (text.Length < lineLen)
{
return(false);
}
var ret = new StringBuilder(text.Length + Environment.NewLine.Length * text.Length / lineLen);
for (var idx = 0; idx < text.Length;)
{
var len = Math.Min(lineLen, text.Length - idx);
text.SubString(idx, len).Append(ret);
ret.AppendLine();
idx += len;
}
text = new StringSlice(ret.ToString());
return(true);
}
public int TO_INT(StringSlice str, int idx, int len)
{
StringSlice tmp = str.SubString(idx, len);
return(ParseInt(tmp.Buffer, tmp.StartIndex, tmp.Length));
}
public static int EnumLines(StringSlice txt, Func <StringSlice, int, bool> callback)
{
int currentIdx = 0;
bool lastWasR = false;
int currentStart = 0;
for (int i = 0; i < txt.Length; ++i)
{
bool yieldLine = false;
int newCurrentStart = currentStart;
int currentEnd = 0;
switch (txt[i])
{
case '\r':
if (lastWasR)
{
yieldLine = true;
newCurrentStart = i;
currentEnd = i - 1;
}
lastWasR = true;
break;
case '\n':
yieldLine = true;
if (lastWasR)
{
currentEnd = i - 1;
}
else
{
currentEnd = i;
}
lastWasR = false;
newCurrentStart = i + 1;
break;
default:
if (lastWasR)
{
yieldLine = true;
newCurrentStart = i;
currentEnd = i - 1;
}
lastWasR = false;
break;
}
if (yieldLine)
{
if (callback != null)
{
if (!callback(txt.SubString(currentStart, currentEnd - currentStart), currentIdx))
{
return(currentIdx + 1);
}
}
++currentIdx;
currentStart = newCurrentStart;
}
}
if (lastWasR)
{
if (callback != null)
{
if (!callback(txt.SubString(currentStart, txt.Length - currentStart - 1), currentIdx))
{
return(currentIdx + 1);
}
}
++currentIdx;
}
else
{
if (callback != null)
{
callback(txt.SubString(currentStart, txt.Length - currentStart), currentIdx);
}
}
return(currentIdx + 1);
}
