Quick fix of #28943.

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

diff --git a/src/ltj-stack.lua b/src/ltj-stack.lua
index 4e99176..88d2a67 100644 (file)
--- a/src/ltj-stack.lua
+++ b/src/ltj-stack.lua
@@ -10,7 +10,7 @@ luatexbase.provides_module({
 module('luatexja.stack', package.seeall)
 local err, warn, info, log = luatexbase.errwarinf(_NAME)
 
-require('luatexja.base');      local ltjb = luatexja.base
+luatexja.load_module('base');      local ltjb = luatexja.base
 
 local node_new = node.new
 local id_whatsit = node.id('whatsit')
@@ -82,18 +82,19 @@ end
 -- EXT
 function set_stack_table(g,m,c,p,lb,ub)
    local i = get_stack_level()
-   if p<lb or p>ub then 
+   if type(p)~='number' or p<lb or p>ub then
       ltjb.package_error('luatexja',
-                        "invalid code (".. p .. ")",
-                        {"The code should in the range "..tostring(lb) ..'..'.. tostring(ub) .. ".",
-                         "I'm going to use 0 instead of that illegal code value."})
+                        "invalid code (".. tostring(p) .. ")",
+                        "The code should in the range "..tostring(lb) .. '..' ..
+                        tostring(ub) .. ".\n" ..
+                     "I'm going to use 0 instead of that illegal code value.")
       p=0
-   elseif c<-1 or c>0x10ffff then 
+   elseif type(c)~='number' or c<-1 or c>0x10ffff then
       ltjb.package_error('luatexja',
-                        'bad character code (' .. c .. ')',
-                        {'A character number must be between -1 and 0x10ffff.',
-                         "(-1 is used for denoting `math boundary')",
-                         'So I changed this one to zero.'})
+                        'bad character code (' .. tostring(c) .. ')',
+                        'A character number must be between -1 and 0x10ffff.\n' ..
+                        "(-1 is used for denoting `math boundary')\n" ..
+                        'So I changed this one to zero.')
       c=0
    elseif not charprop_stack_table[i][m] then 
       charprop_stack_table[i][m] = {} 
@@ -110,11 +111,11 @@ end
 -- EXT
 function set_stack_font(g,m,c,p)
    local i = get_stack_level()
-   if c<0 or c>255 then 
+   if type(c)~='number' or c<0 or c>255 then 
       ltjb.package_error('luatexja',
-                        "invalid family number (".. p .. ")",
-                        {"The family number should in the range 0 .. 255.",
-                         "I'm going to use 0 instead of that illegal family number."})
+                        "invalid family number (".. tostring(c) .. ")",
+                        "The family number should in the range 0 .. 255.\n" ..
+                         "I'm going to use 0 instead of that illegal family number.")
       c=0
    elseif not charprop_stack_table[i][m] then 
       charprop_stack_table[i][m] = {}