/// <summary>
/// Returns the index of the pattern in a string
/// </summary>
/// <param name="self"></param>
/// <param name="text">The string in which to find the pattern</param>
/// <param name="startPosition">Start index in the string</param>
/// <param name="matchCase">true if a case sensitive match should be performed</param>
/// <param name="separators"></param>
/// <returns>A PatternScanResult containing information on where the pattern was found and also the text of the pattern</returns>
public static PatternScanResult IndexIn(this Pattern self, string text, int startPosition, bool matchCase, string separators)
{
if (separators == null)
{
}
else
{
self.Separators = separators;
}
if (!self.IsComplex)
{
if (!self.IsKeyword)
{
return(self.SimpleFind(text, startPosition, matchCase));
}
return(self.SimpleFindKeyword(text, startPosition, matchCase));
}
if (!self.IsKeyword)
{
return(self.ComplexFind(text, startPosition));
}
return(self.ComplexFindKeyword(text, startPosition));
}
private static PatternScanResult SimpleFindKeyword(this Pattern self, string text, int startPosition,
bool matchCase)
{
PatternScanResult res;
while (true)
{
res = self.SimpleFind(text, startPosition, matchCase);
if (res.Token == "")
{
return(res);
}
if (self.CharIsSeparator(text, res.Index - 1) && self.CharIsSeparator(text, res.Index + res.Token.Length))
{
return(res);
}
startPosition = res.Index + 1;
if (startPosition >= text.Length)
{
res.Token = "";
res.Index = 0;
return(res);
}
}
}