FragmentImageSize tries to parse the width and height encoded in the URL fragment, which is inserted by the markup renderer.

RenderCmplx renders content into a complete output.

SubstringSegment slices the given rich text.

Hyphenate controls whether or not texts should have hyphens on wrap.

MentionSegment is a type that satisfies both Segment and Mentioner.

ReferenceSegment is a type that satisfies both Segment and MessageReferencer.

RenderOutput is the output of a render.