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* ! LuaTeX error [string "\directlua "]:1: invalid escape sequence
@ 2013-04-19  5:39 Kip Warner
  2013-04-19  7:07 ` Hans Hagen
  0 siblings, 1 reply; 3+ messages in thread
From: Kip Warner @ 2013-04-19  5:39 UTC (permalink / raw)
  To: mailing list for ConTeXt users; +Cc: Mojca Miklavec


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Hey list,

I am having problems typesetting the following minimal to try and
extract the current revision number from my revision control system:

        % Bzr revision...
        \def\initializeBzr
                {\ctxlua{context("\\global\\edef\\BzrRevision{\%s}",
                         os.resultof"bzr revno | tr -d '\\n'")}}
        \initializeBzr
        
        \starttex
        foo
        \stoptex

The error I receive is:

        ! LuaTeX error [string "\directlua "]:1: invalid escape sequence
        near '\%'.
        system          > tex > error on line 5 in file minimal.tex:
        LuaTeX error  ...

Line 5 is the \initializeBzr invocation. This was working with TeX Live
2012, but perhaps the correct usage has changed. I am now using ConTeXt
2013.04.11 19:55 with LuaTeX beta-0.76.0-2013041612  (TeX Live 2013)
(rev 4627).

Thank you,

PS Please cc me because my subscription is temporarily disabled.

-- 
Kip Warner -- Software Engineer
OpenPGP encrypted/signed mail preferred
http://www.thevertigo.com

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: ! LuaTeX error [string "\directlua "]:1: invalid escape sequence
  2013-04-19  5:39 ! LuaTeX error [string "\directlua "]:1: invalid escape sequence Kip Warner
@ 2013-04-19  7:07 ` Hans Hagen
  2013-04-19  7:15   ` Kip Warner
  0 siblings, 1 reply; 3+ messages in thread
From: Hans Hagen @ 2013-04-19  7:07 UTC (permalink / raw)
  To: mailing list for ConTeXt users; +Cc: Kip Warner, Mojca Miklavec

On 4/19/2013 7:39 AM, Kip Warner wrote:
> Hey list,
>
> I am having problems typesetting the following minimal to try and
> extract the current revision number from my revision control system:
>
>          % Bzr revision...
>          \def\initializeBzr
>                  {\ctxlua{context("\\global\\edef\\BzrRevision{\%s}",
>                           os.resultof"bzr revno | tr -d '\\n'")}}
>          \initializeBzr
>
>          \starttex
>          foo
>          \stoptex
>
> The error I receive is:
>
>          ! LuaTeX error [string "\directlua "]:1: invalid escape sequence
>          near '\%'.
>          system          > tex > error on line 5 in file minimal.tex:
>          LuaTeX error  ...
>
> Line 5 is the \initializeBzr invocation. This was working with TeX Live
> 2012, but perhaps the correct usage has changed. I am now using ConTeXt
> 2013.04.11 19:55 with LuaTeX beta-0.76.0-2013041612  (TeX Live 2013)
> (rev 4627).

use [[ ]] for passing strings and \letterpercent , of do:

\ctxlua{context.setxvalue("BzrRevision",os.resultof("bzr revno | tr -d 
'\string\n'"))}



Hans


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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: ! LuaTeX error [string "\directlua "]:1: invalid escape sequence
  2013-04-19  7:07 ` Hans Hagen
@ 2013-04-19  7:15   ` Kip Warner
  0 siblings, 0 replies; 3+ messages in thread
From: Kip Warner @ 2013-04-19  7:15 UTC (permalink / raw)
  To: Hans Hagen; +Cc: mailing list for ConTeXt users, Mojca Miklavec


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On Fri, 2013-04-19 at 09:07 +0200, Hans Hagen wrote:
> use [[ ]] for passing strings and \letterpercent , of do:
> 
> \ctxlua{context.setxvalue("BzrRevision",os.resultof("bzr revno | tr
> -d 
> '\string\n'"))} 

Thanks Hans. That solved that problem.

-- 
Kip Warner -- Software Engineer
OpenPGP encrypted/signed mail preferred
http://www.thevertigo.com

[-- Attachment #1.2: This is a digitally signed message part --]
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[-- Attachment #2: Type: text/plain, Size: 485 bytes --]

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-04-19  7:15 UTC | newest]

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2013-04-19  5:39 ! LuaTeX error [string "\directlua "]:1: invalid escape sequence Kip Warner
2013-04-19  7:07 ` Hans Hagen
2013-04-19  7:15   ` Kip Warner

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