Expand description
Pandoc wikilink extensions: wikilinks_title_after_pipe and
wikilinks_title_before_pipe.
Shape: [[url]] (or [[url|title]] with after-pipe semantics, or
[[title|url]] with before-pipe). Image variant: ![[url]] /
![[url|title]]. Single line, non-greedy on the first ]], rejects
empty body. When both extensions are enabled, after-pipe wins
(matches pandoc behavior).
Title content is NOT recursively parsed for inlines — [[url|**bold**]]
emits the title as a flat TEXT span containing the literal bytes
**bold**. Verified against pandoc 3.9.0.2 -f markdown+wikilinks_title_after_pipe -t native.
Lives in the inline IR’s ConstructKind dispatch path so that
everything inside [[...]] is opaque to emphasis / bracket / autolink
resolution. The emitter walks the byte range and re-locates the pipe.