private bool IsDirective(StringSection directiveName)
{
int listStart = 0;
int listEnd = directiveNames.Length / 2; // Exclusive
int listCount = listEnd - listStart;
while (listCount > 1)
{
// first item of second half
int split = listStart + listCount / 2;
var splitText = directiveNames[split];
var compare = StringSection.Compare(directiveName, splitText, true);
if (compare == 0)
{
return(true);
}
if (compare > 0) // directiveName > splitText
{
listStart = split;
}
else
{
listEnd = split;
}
listCount = listEnd - listStart;
}
return(StringSection.Compare(directiveName, directiveNames[listStart], true) == 0);
}
private bool IsIncludeLine(StringSection line)
{
if (line.Length < includeDirective.Length)
{
return(false);
}
var lineStart = line.Substring(0, includeDirective.Length);
if (StringSection.Compare(lineStart, includeDirective, true) == 0)
{
return(true);
}
return(false);
}
private static bool StringEquals(StringSection a, StringSection b, bool ignoreCase)
{
return(StringSection.Compare(a, b, ignoreCase) == 0);
}
