From 008c8958d3f19acaac24ce995ce22bb7d9636b58 Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg@phi-gamma.net>
Date: Sun, 2 Mar 2014 17:04:05 +0100
Subject: simplify itemization level stack handling

---
 src/rst_context.lua | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/src/rst_context.lua b/src/rst_context.lua
index db05537..699064e 100644
--- a/src/rst_context.lua
+++ b/src/rst_context.lua
@@ -819,10 +819,8 @@ end
 
 local item_stack = { }
 
-local current_itemdepth = 0
 function rst_context.stopitemize(str)
-    item_stack[current_itemdepth] = nil
-    current_itemdepth = current_itemdepth - 1
+    item_stack[#item_stack] = nil
     return str .. [[
 \\stopitemize
 ]]
@@ -836,18 +834,18 @@ function rst_context.bullet_item (tab)
     local itemtype = tab[1]
     local result = startstr or ""
     if startstr then
-        current_itemdepth = current_itemdepth + 1
-        item_stack[current_itemdepth] = itemtype
-    elseif item_stack[current_itemdepth] then
-        if helpers.list.successor(itemtype, item_stack[current_itemdepth]) then
+        item_stack[#item_stack + 1] = itemtype
+    elseif next (item_stack) then
+        local current_item = item_stack [#item_stack]
+        if helpers.list.successor(itemtype, current_item) then
             -- just leave it alone
-        elseif helpers.list.greater(itemtype, item_stack[current_itemdepth]) then
+        elseif helpers.list.greater(itemtype, current_item) then
             local itemnum = tonumber(stringstrip(itemtype)) or helpers.list.get_decimal(itemtype)
             result = result .. stringformat([[
 \\setnumber[itemgroup:itemize]{%s}
 ]], itemnum)
         end
-        item_stack[current_itemdepth] = itemtype
+        item_stack[#item_stack] = itemtype
     end
 
     return result .. [[
-- 
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