static SourceSpanWithContext _normalizeTrailingNewline()

in lib/src/highlighter.dart [581:606]

• 22 lines of code
• 7 McCabe index (conditional complexity)

  static SourceSpanWithContext _normalizeTrailingNewline(
      SourceSpanWithContext span) {
    if (!span.context.endsWith('\n')) return span;

    // If there's a full blank line on the end of [span.context], it's probably
    // significant, so we shouldn't trim it.
    if (span.text.endsWith('\n\n')) return span;

    final context = span.context.substring(0, span.context.length - 1);
    var text = span.text;
    var start = span.start;
    var end = span.end;
    if (span.text.endsWith('\n') && _isTextAtEndOfContext(span)) {
      text = span.text.substring(0, span.text.length - 1);
      if (text.isEmpty) {
        end = start;
      } else {
        end = SourceLocation(span.end.offset - 1,
            sourceUrl: span.sourceUrl,
            line: span.end.line - 1,
            column: _lastLineLength(context));
        start = span.start.offset == span.end.offset ? end : span.start;
      }
    }
    return SourceSpanWithContext(start, end, text, context);
  }