/// <summary>
/// Outlines comments that define sections such as
/// # NAME ---
/// </summary>
/// <returns>True if names changed and outline regions need to be rebuilt</returns>
private void OutlineSections(AstRoot ast, OutliningContext context)
{
// Collect comments that define sections
var snapshot = EditorTree.TextSnapshot;
var sections = ast.Comments.Where(c => {
var text = snapshot.GetText(new Span(c.Start, c.Length));
// Section looks like # [NAME] --------
return(text.TrimEnd().EndsWithOrdinal("---") && text.IndexOfAny(CharExtensions.LineBreakChars) < 0);
}).ToArray();
// Construct collapsible regions
var ranges = new List <ITextRange>();
for (int i = 0; i < sections.Length; i++)
{
var startLine = snapshot.GetLineFromPosition(sections[i].Start);
int end = -1;
var text = snapshot.GetText(new Span(sections[i].Start, sections[i].Length));
var displayText = text.Substring(0, text.IndexOfOrdinal("---")).Trim();
if (i < sections.Length - 1)
{
var endLineNumber = snapshot.GetLineNumberFromPosition(sections[i + 1].Start);
if (endLineNumber > startLine.LineNumber)
{
end = snapshot.GetLineFromLineNumber(endLineNumber - 1).End;
}
}
else
{
end = snapshot.Length;
}
if (end > startLine.Start)
{
ranges.Add(sections[i]);
// Trim trailing whitespace in user-defined regions
var range = TextRange.FromBounds(startLine.Start, end);
text = snapshot.GetText(new Span(range.Start, range.Length));
var trimBy = text.Length - text.TrimEnd().Length;
range = TextRange.FromBounds(range.Start, range.End - trimBy);
context.Regions.Add(new ROutlineRegion(EditorDocument.TextBuffer, range, displayText));
}
}
// Track changes in section names
_forceRegionsChange = _sections != null && _sections.Changed;
_sections?.Dispose();
_sections = new RSectionsCollection(EditorTree, ranges);
}
/// <summary>
/// Outlines comments that define sections such as
/// # NAME ---
/// </summary>
/// <returns>True if names changed and outline regions need to be rebuilt</returns>
private void OutlineSections(AstRoot ast, OutliningContext context) {
// Collect comments that define sections
var snapshot = EditorTree.TextSnapshot;
var sections = ast.Comments.Where(c => {
var text = snapshot.GetText(new Span(c.Start, c.Length));
// Section looks like # [NAME] --------
return text.TrimEnd().EndsWithOrdinal("---") && text.IndexOfAny(CharExtensions.LineBreakChars) < 0;
}).ToArray();
// Construct collapsible regions
var ranges = new List<ITextRange>();
for (int i = 0; i < sections.Length; i++) {
var startLine = snapshot.GetLineFromPosition(sections[i].Start);
int end = -1;
var text = snapshot.GetText(new Span(sections[i].Start, sections[i].Length));
var displayText = text.Substring(0, text.IndexOfOrdinal("---")).Trim();
if (i < sections.Length - 1) {
var endLineNumber = snapshot.GetLineNumberFromPosition(sections[i + 1].Start);
if (endLineNumber > startLine.LineNumber) {
end = snapshot.GetLineFromLineNumber(endLineNumber - 1).End;
}
} else {
end = snapshot.Length;
}
if (end > startLine.Start) {
ranges.Add(sections[i]);
// Trim trailing whitespace in user-defined regions
var range = TextRange.FromBounds(startLine.Start, end);
text = snapshot.GetText(new Span(range.Start, range.Length));
var trimBy = text.Length - text.TrimEnd().Length;
range = TextRange.FromBounds(range.Start, range.End - trimBy);
context.Regions.Add(new ROutlineRegion(EditorDocument.TextBuffer, range, displayText));
}
}
// Track changes in section names
_forceRegionsChange = _sections != null && _sections.Changed;
_sections?.Dispose();
_sections = new RSectionsCollection(EditorTree, ranges);
}