On Wed, 2013-05-08 at 09:32 +0200, luigi scarso wrote: > On Wed, May 8, 2013 at 2:49 AM, Kip Warner <k...@thevertigo.com> wrote: > > > Hey Luigi, > > > > I find the \texenginename and \texengineversion useful for retrieving > > the backend name and version. They work fine when using the vanilla > > LuaTeX backend. However, when using LuaJitTeX, the aforementioned > > macros still seem to retrieve LuaTeX specific information and not > > LuaJitTeX - unless I'm doing something wrong. I was careful to ensure I > > passed --engine=luajittex to context as well. > > > > -- > > Kip Warner -- Software Engineer > > OpenPGP encrypted/signed mail preferred > > http://www.thevertigo.com > > > > yes, it's known and it's ok, because luajittex is not different from > luatex as luatex is different from pdftex/xetex/etex > (and if it's so, then it is an error). > A quick check could be > \startluacode > if jit==nil then print("=============>This is not luajitTeX") else > print("=============>You are running luajitTeX ") end > \stopluacode > of course one can write a global > jit ={} also in luatex. > Another one used in the log is > \startluacode > print("===================>"..string.lower(status.banner)) > \stopluacode > and you can search for luajittex . > > My wish is that luajittex should be 100% compatible with luatex, but > unfortunately there are some differences between lua5.1 used by luajit2.0 > and lua5.2 > that makes this wish currently impossible to satisfied at engine level --- > ConTeXt is smart enough to manage these differences, but you can still > write > a lua script that is valid for lua5.2 but not for luajit2.0, see for > example > http://lua-users.org/lists/lua-l/2010-03/msg00237.html > > Full compatibility between lua5.2 and luajit2.0, for what I see, is not on > the top on the Mike Pall's agenda.
Thanks Luigi. That was pretty comprehensive. For my purposes, it makes no different to me whether I am using luatex or luajittex. However, in my document's front matter I like to have general information about the tools used to typeset the document, and for that reason I thought it would be nice if there was a simple and elegant way to show which backend was used. -- Kip Warner -- Software Engineer OpenPGP encrypted/signed mail preferred http://www.thevertigo.com
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