Update wikilink syntax

This prevents interference with markdown tables

wikilinks.go

@@ -16,14 +16,15 @@ import (
 	"github.com/yuin/goldmark/util"
 )
 
-// wikiLinkRe matches [[target]] and [[target|display]] anchored at the start
+// wikiLinkRe matches [[target]] and [[target::display]] anchored at the start
 // of the current inline reader. Target and display forbid newlines and
-// brackets; target additionally forbids the pipe separator.
-var wikiLinkRe = regexp.MustCompile(`^\[\[([^\[\]\|\n]+)(?:\|([^\[\]\n]+))?\]\]`)
+// brackets; the target is non-greedy so the first `::` separates target from
+// display when both are present.
+var wikiLinkRe = regexp.MustCompile(`^\[\[([^\[\]\n]+?)(?:::([^\[\]\n]+))?\]\]`)
 
 // wikiLinkPattern matches wiki-link tokens anywhere in a markdown source.
 // Used by the move-endpoint rewriter; not by the goldmark parser.
-var wikiLinkPattern = regexp.MustCompile(`\[\[([^\[\]\n\|]+)(\|[^\[\]\n]+)?\]\]`)
+var wikiLinkPattern = regexp.MustCompile(`\[\[([^\[\]\n]+?)(?:::([^\[\]\n]+))?\]\]`)
 
 // wikiLinkNode is the AST node produced by wikiLinkParser.
 type wikiLinkNode struct {