/// ------------------------------------------------------------------------------------
/// <summary>
/// Parses the given string representing the reference range.
/// </summary>
/// <param name="sRefRng">The string representing the reference range.</param>
/// <param name="bcvRefStart">The BCV ref start.</param>
/// <param name="bcvRefEnd">The BCV ref end.</param>
/// <param name="fAllowDifferentBooks">if set to <c>true</c> range is allowed to span books.</param>
/// <returns>
/// <c>true</c> if successfully parsed; <c>false</c> otherwise
/// </returns>
/// ------------------------------------------------------------------------------------
public static bool ParseRefRange(string sRefRng, ref BCVRef bcvRefStart,
ref BCVRef bcvRefEnd, bool fAllowDifferentBooks)
{
if (string.IsNullOrEmpty(sRefRng))
return false;
sRefRng = sRefRng.Trim();
string[] pieces = sRefRng.Split(new [] { '-' }, StringSplitOptions.RemoveEmptyEntries);
if (pieces.Length > 2 || pieces.Length == 0)
return false;
string sFirstRef = pieces[0];
int bbcccvvvStart = bcvRefStart.BBCCCVVV;
int intVal;
if (Int32.TryParse(sFirstRef, out intVal))
{
if (intVal > 176)
{
bcvRefStart.BBCCCVVV = intVal;
if (!bcvRefStart.Valid)
{
bcvRefStart.BBCCCVVV = bbcccvvvStart;
return false;
}
}
else
{
if (bcvRefStart.Book != bcvRefEnd.Book || bcvRefStart.Chapter != bcvRefEnd.Chapter)
return false;
bcvRefStart.Verse = intVal;
}
}
else
{
// have to check *second* character because first character in a book code
// can be a number; e.g. 2JN
if (sFirstRef.Length < 3 || !Char.IsLetter(sFirstRef[1]))
{
if (bcvRefStart.Book != bcvRefEnd.Book)
return false;
sFirstRef = NumberToBookCode(bcvRefStart.Book) + " " + sFirstRef;
}
bcvRefStart.Parse(sFirstRef);
if (!bcvRefStart.Valid)
{
bcvRefStart.BBCCCVVV = bbcccvvvStart;
return false;
}
}
if (pieces.Length == 1)
{
bcvRefEnd.BBCCCVVV = bcvRefStart.BBCCCVVV;
return true;
}
string sEndRef = pieces[1];
int bbcccvvvEnd = bcvRefEnd.BBCCCVVV;
// The following handles the simple case of a verse number AND the more complex case of a verse
// number followed by a sub-verse segment letter.
if (Int32.TryParse(sEndRef, out intVal) ||
(sEndRef.Length >= 2 && sEndRef.Length <= 4 && Char.IsLetter(sEndRef[sEndRef.Length - 1]) &&
Int32.TryParse(sEndRef.Remove(sEndRef.Length - 1), out intVal)))
{
if (intVal > 176)
{
bcvRefEnd.BBCCCVVV = intVal;
if (!bcvRefEnd.Valid)
{
bcvRefStart.BBCCCVVV = bbcccvvvStart;
bcvRefEnd.BBCCCVVV = bbcccvvvEnd;
return false;
}
}
else
{
bcvRefEnd.BBCCCVVV = bcvRefStart.BBCCCVVV;
bcvRefEnd.Verse = intVal;
}
}
else
{
if (sEndRef.Length < 3 || !Char.IsLetter(sEndRef[1]))
sEndRef = NumberToBookCode(bcvRefStart.Book) + " " + sEndRef;
bcvRefEnd.Parse(sEndRef);
if (!bcvRefEnd.Valid || bcvRefStart > bcvRefEnd ||
(bcvRefStart.Book != bcvRefEnd.Book && !fAllowDifferentBooks))
{
bcvRefStart.BBCCCVVV = bbcccvvvStart;
bcvRefEnd.BBCCCVVV = bbcccvvvEnd;
return false;
}
}
return true;
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Parses the given string representing the reference range.
/// </summary>
/// <param name="sRefRng">The string representing the reference range.</param>
/// <param name="bcvRefStart">The start reference (passed by ref because we use it to
/// infer any components of the reference that are misisng in sRefRng).</param>
/// <param name="bcvRefEnd">The end reference.</param>
/// <param name="versification">The versification.</param>
/// <returns>
/// <c>true</c> if successfully parsed; <c>false</c> otherwise
/// </returns>
/// ------------------------------------------------------------------------------------
public static bool ParseRefRange(string sRefRng, ref BCVRef bcvRefStart,
ref BCVRef bcvRefEnd, ScrVers versification)
{
if (string.IsNullOrEmpty(sRefRng))
return false;
if (!sRefRng.Contains("--"))
return BCVRef.ParseRefRange(sRefRng, ref bcvRefStart, ref bcvRefEnd, false);
sRefRng = sRefRng.Trim();
string[] pieces = sRefRng.Split(new string[] { "--" }, StringSplitOptions.RemoveEmptyEntries);
if (pieces.Length != 2)
return false;
string sFirstRef = pieces[0];
int bbcccvvvStart = bcvRefStart.BBCCCVVV;
bcvRefStart.Parse(sFirstRef);
if (!bcvRefStart.Valid)
{
bcvRefStart.BBCCCVVV = bbcccvvvStart;
return false;
}
string sEndRef = pieces[1];
int chapter;
if (Int32.TryParse(sEndRef, out chapter))
{
ScrReference scrRefEnd = new ScrReference(bcvRefStart.Book, chapter, 1, versification);
scrRefEnd.Verse = scrRefEnd.LastVerse;
bcvRefEnd.BBCCCVVV = scrRefEnd.BBCCCVVV;
return true;
}
return false;
}
