resolve block element only once

1 files changed, 6 insertions, 5 deletions

diff --git a/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua b/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
index 0ce1dcd..ef02b83 100644
--- a/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
+++ b/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
@@ -133,13 +133,14 @@ local function Namespaces(blocks)
     and blocks.content[2].t == "Space"
     and blocks.content[1].text:match(curie_pattern)
   then
+    local el = blocks.content[3]
 
     -- default namespace, misparsed as a citation
-    if blocks.content[3].t == "Cite"
-        and #blocks.content[3].content == 1
+    if el.t == "Cite"
+        and #el.content == 1
 
         -- TODO: maybe check case-insensitively
-        and blocks.content[3].content[1].text == "@default"
+        and el.content[1].text == "@default"
     then
       -- FIXME: add CURIE to metadata
       return {}
@@ -147,11 +148,11 @@ local function Namespaces(blocks)
 
     -- namespace
     local proto_pattern = "^https?:"
-    if blocks.content[3].t == "Str"
+    if el.t == "Str"
 
         -- TODO: maybe check case-insensitively
         -- TODO: relax to match URI syntax without hardcoded protocols
-      and blocks.content[3].text:match(proto_pattern)
+      and el.text:match(proto_pattern)
     then
       -- FIXME: add CURIE and URI to metadata
       return {}