/// <summary>
/// Insert in the buffer a text line that can be split.
/// </summary>
/// <param name="text">The text</param>
/// <param name="from">from position in the buffer</param>
/// <param name="to">to position in the buffer</param>
/// <param name="bInsertSplit">true if splitting must handle, false otherwise</param>
private void InsertLineMaybeSplit(SourceText buffer, string text, int from, int to, bool bInsertSplit)
{
if (bInsertSplit && this.Layout == ColumnsLayout.CobolReferenceFormat)
{
int crPos = text.LastIndexOf('\r');
int lfPos = text.LastIndexOf('\n');
int crlf = 0;
crlf += crPos >= 0 ? 1 : 0;
crlf += lfPos >= 0 ? 1 : 0;
int lineStartOffset;
int lineEndOffset;
int lineLen = buffer.GetLineInfo(from, out lineStartOffset, out lineEndOffset);
if (((from - lineStartOffset) + (text.Length - crlf)) >= LEGAL_COBOL_LINE_LENGTH)
{
string lefttext = buffer.GetTextAt(lineStartOffset, from);
ICollection <ITextLine> lines = CobolTextLine.CreateCobolLines(this.Layout, -1, ' ', "",
lefttext + (crlf > 0 ? text.Substring(0, text.Length - crlf) : text), LEGAL_COBOL_LINE_LENGTH, 65, false);
StringWriter sw = new StringWriter();
string sep = "";
foreach (var line in lines)
{
sw.Write(sep);
sw.WriteLine(line.Text);
sep = Environment.NewLine;
}
//We must insert "\r\n" if the target line is empty and the inserted test has one.
if ((lineEndOffset == lineStartOffset) && crlf > 0)
{
sw.Write(Environment.NewLine);
}
sw.Flush();
text = sw.ToString();
buffer.Insert(text, lineStartOffset, to);
}
else
{
buffer.Insert(text, from, to);
}
}
else
{
buffer.Insert(text, from, to);
}
}