private bool StartsWithRegionTag(ITextSnapshotLine line)
{
var start = line.GetFirstNonWhitespacePosition();
if (start != null)
{
var index = start.Value;
return(line.StartsWith(index, "#region", ignoreCase: true));
}
return(false);
}
static bool IsImport(ITextSnapshotLine line, string language)
{
var start = line.GetFirstNonWhitespacePosition();
if (start is null)
{
return(false);
}
// For VB we only need to find "Imports" at the start of a line
if (language == LanguageNames.VisualBasic)
{
return(line.StartsWith(start.Value, ImportsStatement, ignoreCase: true));
}
// For the purposes of collapsing, extern aliases are grouped with usings
if (line.StartsWith(start.Value, ExternDeclaration, ignoreCase: false))
{
return(true);
}
return(line.StartsWith(start.Value, UsingDirective, ignoreCase: false));
}
public static bool Contains(this ITextSnapshotLine line, int index, string value, bool ignoreCase)
{
var snapshot = line.Snapshot;
for (var i = index; i < line.End; i++)
{
if (i + value.Length > snapshot.Length)
{
return(false);
}
if (line.StartsWith(i, value, ignoreCase))
{
return(true);
}
}
return(false);
}
static bool StartsWithRegionTag(ITextSnapshotLine line)
{
var start = line.GetFirstNonWhitespacePosition();
return(start != null && line.StartsWith(start.Value, "#region", ignoreCase: true));
}