ranges method
Every token of the document as a StyledRange under theme.
Implementation
List<StyledRange> ranges(SyntaxTheme theme) {
final ranges = <StyledRange>[];
var offset = 0;
for (final line in _lines) {
for (final token in line.themed(theme)) {
if (token.text.isEmpty) continue;
final start = offset + token.offset;
ranges.add(StyledRange(start, start + token.text.length, token.style));
}
offset += line.raw.length + 1;
}
return ranges;
}