texlive[58499] Master/texmf-dist/doc/luatex/base: Updated luatex

[commits+lscarso at tug.org]

Revision: 58499
          http://tug.org/svn/texlive?view=revision&revision=58499
Author:   lscarso
Date:     2021-03-18 20:34:59 +0100 (Thu, 18 Mar 2021)
Log Message:
-----------
Updated luatex manual.

Modified Paths:
--------------
    trunk/Master/texmf-dist/doc/luatex/base/luatex-tex.tex
    trunk/Master/texmf-dist/doc/luatex/base/luatex.pdf

Modified: trunk/Master/texmf-dist/doc/luatex/base/luatex-tex.tex
===================================================================
--- trunk/Master/texmf-dist/doc/luatex/base/luatex-tex.tex	2021-03-18 14:41:44 UTC (rev 58498)
+++ trunk/Master/texmf-dist/doc/luatex/base/luatex-tex.tex	2021-03-18 19:34:59 UTC (rev 58499)
@@ -1,4 +1,4 @@
-% language=uk
+% engine=luatex language=uk
 
 % lua.newtable
 
@@ -1971,8 +1971,9 @@
 
 You can kick in your own nesting level visualizer, for instance:
 
-\stoptyping
+\starttyping
 callback.register("input_level_string",function(n)
+         if tex.tracingmacros > 0 and tex.count.tracingstacklevels > 0 then
     if tex.tracingmacros > 1 then
         return "! " .. string.rep(">",n) .. " "
     end
@@ -1979,6 +1980,23 @@
 end)
 \stoptyping
 
+Or, in sync with other engines (not checked):
+
+\newcount\tracingstacklevels
+
+\starttyping
+\directlua {
+  callback.register("input_level_string", function(n)
+    if tex.tracingmacros > 0 then
+      local l = tex.count.tracingstacklevels
+      if l > 0 then
+        return string.rep("~",l) .. string.rep(".",n-l)
+      end
+    end
+  end)
+}
+\stoptyping
+
 \stopsection
 
 \startsection[title={The \type {texio} library}][library=texio]

Modified: trunk/Master/texmf-dist/doc/luatex/base/luatex.pdf
===================================================================
(Binary files differ)