M inline.go → inline.go

@@ -181,7 +181,7 @@ 
 // '[': parse a link or an image or a footnote
 func link(p *parser, out *bytes.Buffer, data []byte, offset int) int {
 	// no links allowed inside regular links, footnote, and deferred footnotes
-	if p.insideLink && (data[offset-1] == '[' || data[offset+1] == '^') {
+	if p.insideLink && (offset > 0 && data[offset-1] == '[' || len(data)-1 > offset && data[offset+1] == '^') {
 		return 0
 	}
 

M inline_test.go → inline_test.go

@@ -410,6 +410,9 @@ "<p><a href=\"/url/\">link &amp; ampersand</a></p>\n",
 
 		"[link](/url/&query)\n",
 		"<p><a href=\"/url/&amp;query\">link</a></p>\n",
+
+		"[[t]](/t)\n",
+		"<p><a href=\"/t\">[t]</a></p>\n",
 	}
 	doTestsInline(t, tests)
 }