fig a bug in lltjext + array

[luatex-ja/luatexja.git] / src / ltj-stack.lua

diff --git a/src/ltj-stack.lua b/src/ltj-stack.lua
index ef7a369..c9f80c4 100644 (file)
--- a/src/ltj-stack.lua
+++ b/src/ltj-stack.lua
@@ -3,7 +3,7 @@
 --
 luatexbase.provides_module({
   name = 'luatexja.stack',
-  date = '2014/05/08',
+  date = '2017/05/05',
   description = 'LuaTeX-ja stack system',
 })
 module('luatexja.stack', package.seeall)
@@ -20,6 +20,7 @@ local sid_user = node.subtype('user_defined')
 local STCK = luatexja.userid_table.STCK
 local fastcopy = table.fastcopy
 local setcount = tex.setcount
+local scan_int, scan_keyword = token.scan_int, token.scan_keyword
 hmode = 0 -- dummy
 
 charprop_stack_table={};
@@ -62,8 +63,11 @@ end
 local set_stack_table = set_stack_table
 
 -- EXT
-function set_stack_perchar(m,c,p,lb,ub)
-   if type(p)~='number' or p<lb or p>ub then
+function set_stack_perchar(m,lb,ub, getter)
+   local c = scan_int()
+   scan_keyword(',')
+   local p = tonumber((getter or scan_int)())
+   if p<lb or p>ub then
       ltjb.package_error('luatexja',
                         "invalid code (".. tostring(p) .. ")",
                         "The code should in the range "..tostring(lb) .. '..' ..