From 50ac9dc677b44b87897cc6b2f340f641dc31460e Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Wed, 14 May 2025 17:28:31 +0200
Subject: declare file-wide variable as <const>

---
 .../semantic-markdown/semantic-markdown.lua        | 44 +++++++++++-----------
 1 file changed, 22 insertions(+), 22 deletions(-)

(limited to '_extensions')

diff --git a/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua b/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
index f076950..ef55076 100644
--- a/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
+++ b/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
@@ -128,34 +128,34 @@ local ElementTypeIsEnclosure = {
   Strong = true,
 }
 
---- curie_type_prefix - `typeof` or `resource` attribute CURIE hint
-local curie_type_prefix = "[.=]?"
+--- CURIE_TYPE_PREFIX - `typeof` or `resource` attribute CURIE hint
+local CURIE_TYPE_PREFIX <const> = "[.=]?"
 
 -- TODO: cover non-ASCII Unicode characters
 -- @see <https://www.lua.org/manual/5.4/manual.html#6.5>
---- curie_prefix - CURIE prefix component as set of chars
+--- CURIE_PREFIX - CURIE prefix component as set of chars
 --- @see <https://www.w3.org/TR/2010/NOTE-curie-20101216/>
-local _name_start_char = "A-Z_a-z"
-local _name_char = _name_start_char.."-0-9"
-local _ref = "[".._name_start_char.."][".._name_char.."]*"
-local curie_prefix = "[".._name_start_char.."_-][".._name_char.."]*"
+local _NAME_START_CHAR <const> = "A-Z_a-z"
+local _NAME_CHAR <const> = _NAME_START_CHAR.."-0-9"
+local _REF <const> = "[".._NAME_START_CHAR.."][".._NAME_CHAR.."]*"
+local CURIE_PREFIX <const> = "[".._NAME_START_CHAR.."_-][".._NAME_CHAR.."]*"
 
---- curie_long - CURIE with prefix and reference as set of chars
-local curie_long = curie_prefix..":".._ref
+--- CURIE_LONG - CURIE with prefix and reference as set of chars
+local CURIE_LONG <const> = CURIE_PREFIX..":".._REF
 
---- curie_no_ref - CURIE with only prefix as set of chars
-local curie_no_ref = curie_prefix..":"
+--- CURIE_NO_REF - CURIE with only prefix as set of chars
+local CURIE_NO_REF <const> = CURIE_PREFIX..":"
 
---- curie_local - CURIE with only name as set of chars
-local curie_local = ":".._ref
+--- CURIE_LOCAL - CURIE with only name as set of chars
+local CURIE_LOCAL <const> = ":".._REF
 
---- curie_default - CURIE without prefix or name as char
-local curie_default = ":"
+--- CURIE_DEFAULT - CURIE without prefix or name as char
+local CURIE_DEFAULT <const> = ":"
 
--- TODO: curie_re - CURIE as `LPeg.re` regex object
+-- TODO: CURIE_re - CURIE as `LPeg.re` regex object
 -- TODO: test and replace above curie* patterns
 -- @see <https://pandoc.org/lua-filters.html#global-variables>
---local curie_re = re.compile("("..curie_prefix..")?:(".._ref..")?")
+--local CURIE_re <const> = re.compile("("..CURIE_PREFIX..")?:(".._REF..")?")
 
 -- FIXME: define RDF context same as RDFa
 -- TODO: maybe support overriding context with a JSON-LD URI
@@ -187,7 +187,7 @@ local curie_default = ":"
 local function Namespaces(blocks)
 
   -- paragraph with only a braced prefix-only CURIE, colon and one word
-  local curie_pattern = "^{"..curie_type_prefix..curie_prefix.."}:$"
+  local curie_pattern = "^{"..CURIE_TYPE_PREFIX..CURIE_PREFIX.."}:$"
   if #blocks.content == 3
     and blocks.content[1].t == "Str"
     and blocks.content[2].t == "Space"
@@ -407,10 +407,10 @@ local function Statements (block)
     -- in braced enclosure, leaving it
     -- TODO: support mixed-use enclosure
     if encl == Enclosure.BRACED then
-      local curie_pattern1 = "^"..curie_type_prefix..curie_long.."}"
-      local curie_pattern2 = "^"..curie_type_prefix..curie_no_ref.."}"
-      local curie_pattern3 = "^"..curie_type_prefix..curie_local.."}"
-      local curie_pattern4 = "^"..curie_type_prefix..curie_default.."}"
+      local curie_pattern1 = "^"..CURIE_TYPE_PREFIX..CURIE_LONG.."}"
+      local curie_pattern2 = "^"..CURIE_TYPE_PREFIX..CURIE_NO_REF.."}"
+      local curie_pattern3 = "^"..CURIE_TYPE_PREFIX..CURIE_LOCAL.."}"
+      local curie_pattern4 = "^"..CURIE_TYPE_PREFIX..CURIE_DEFAULT.."}"
       local _, nextpos1 = el.text:find(curie_pattern1, pos)
       local _, nextpos2 = el.text:find(curie_pattern2, pos)
       local _, nextpos3 = el.text:find(curie_pattern3, pos)
-- 
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