use single-letter enclosure markers

1 files changed, 18 insertions, 18 deletions

diff --git a/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua b/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
index ef4e7e4..4135ccb 100644
--- a/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
+++ b/_extensions/ruc-play/semantic-markdown/semantic-markdown.lua
@@ -128,18 +128,18 @@ end
 --- ```ASCII-art
 --- Simple ontological annotation:
 --- "A [map]{foaf:depiction} is not the territory"
----    |   ||              |
----    |   |`brace_begin   `brace_end
----    |   `bracket_end
----    `bracket_begin
+---    |   ||\~~~~~~~~~~~~/|
+---    a   bc    curie     d
 ---
 --- Nested and mixed-use annotations:
 --- ["[Ceci]{foaf:depiction} n'est pas une pipe"]{lang=fr dc:Text}
---- | |    ||              |                    ||               |
---- | |    |`brace_begin   `brace_end           |`brace_begin    |
---- | |    `inner_bracket_end                   |           brace_end
---- | `inner_bracket_begin                      `outer_bracket_end
---- `outer_bracket_end
+--- | |    ||\~~~~~~~~~~~~/|                    ||        \~~~~~/|
+--- a a1   |c1   curie1    d1                   bc         curie d
+---        b1
+---
+--- Legend:
+---  a-b, a1-b1: braced enclosure
+---  c-d, c1-d1: bracketed enclosure
 --- ```
 ---
 --- @param inlines  Markdown with semantic annotations as Inlines
@@ -162,10 +162,10 @@ function Statements (block)
     -- unenclosed, entering bracketed enclosure
     -- TODO: support nested bracketed enclosure
     if el.t == 'Str' and not (bracketed or braced) then
-      a, b, pre = string.find(el.text, "([^\\]?)%[")
-      if b and pre == '' then
+      _, a, pre = string.find(el.text, "([^\\]?)%[")
+      if a and pre == '' then
         bracketed = 1
-        pos = b + 1
+        pos = a + 1
       end
     end
 
@@ -173,13 +173,13 @@ function Statements (block)
     -- TODO: support backslash in bracket enclosure
     -- TODO: support nested bracket enclosure
     if el.t == 'Str' and bracketed and not braced then
-      a, b, s = string.find(el.text, "^([^%[%]}\\]*)%]{?", pos)
-      if b then
+      _, c, s = string.find(el.text, "^([^%[%]}\\]*)%]{?", pos)
+      if c then
 
         -- entering braced enclosure
-        if el.text:sub(b, b) == "{" then
+        if el.text:sub(c, c) == "{" then
           braced = 1
-          pos = b + 1
+          pos = c + 1
           table.insert(new_inlines, pandoc.Str(s))
 
         -- leaving non-annotation enclosure
@@ -194,8 +194,8 @@ function Statements (block)
     -- TODO: support mixed-use enclosure
     -- TODO: cover curie_prefix and curie_local and curie_default
     if el.t == 'Str' and braced then
-      a, b = string.find(el.text, "^"..curie_long.."}", pos)
-      if b then
+      _, d = string.find(el.text, "^"..curie_long.."}", pos)
+      if d then
         statement_count = statement_count + 1
         -- TODO: call same function with remains of Str
       end