Protected ReadonlylabelProtected ReadonlymarkdownProtectedresetProtectedinitProtectedmarkdownProtectedparsethe recognized dimensions, or undefined if the suffix is not a well-formed
parameter list — in which case it is left as part of the src, since it may be a literal
| in the URL.
Optionaloptions: MarkdownRenderOptions
Parses the
width=W,height=Hparameter list of an image's sizing suffix.