From: Wolfgang Schuster <schuster.wolfgang@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: deeptextcommand and firstcharacter
Date: Sat, 21 Sep 2013 20:55:12 +0200 [thread overview]
Message-ID: <D66D8555-1E32-4749-9F30-650E9DAA75C9@gmail.com> (raw)
In-Reply-To: <CAANrE7oQwn42Z5DSi0AW9NjHG6Y=o6mAZuEUrKjfaz8bA6dOLw@mail.gmail.com>
Am 21.09.2013 um 20:46 schrieb Thangalin <thangalin@gmail.com>:
> Hi, Wolfgang.
>
> I tried dropping in the Lua code, but it does not extract the text:
>
> \define[1]\StyleChapter{%
> \StyleChapterFramed{%
> \framed[align=right, frame=off]{%
> \startoverlay
> \color[ColourSecondaryLightest]{%
> \cldcontext{string.sub(#1,0,1)}
\cldcontext{string.sub("#1",0,1)}%
> }
> \vskip-1.9em\hskip1.2em#1
> \stopoverlay
> }
> }
> }
When this doesn’t help you have to provide a complete minimal example.
> ! LuaTeX error [string "\directlua "]:1: bad argument #1 to 'sub' (string expected, got nil)
>
> I've tried a few variations:
>
> \directlua{string.sub(tex.sprint("\luatexluaescapestring{#1}") }
> \directlua{string.sub("\luatexluaescapestring{#1}",0,1)}
> \directlua{string.sub(tex.sprint("#1"),0,1)}
> \cldcontext{string.sub(tex.sprint("#1"),0,1)}
1. You have to use string.sub in the parameters of tex.sprint.
2. ConTeXt uses \luaescapestring.
3. We use in ConTeXt \ctxlua instead of \directlua.
Wolfgang
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next prev parent reply other threads:[~2013-09-21 18:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-21 5:50 Thangalin
2013-09-21 9:56 ` Hans Hagen
2013-09-21 17:11 ` Thangalin
2013-09-21 17:13 ` Thangalin
2013-09-21 17:43 ` Wolfgang Schuster
2013-09-21 18:46 ` Thangalin
2013-09-21 18:48 ` Thangalin
2013-09-21 18:55 ` Wolfgang Schuster [this message]
2013-09-21 20:04 ` Hans Hagen
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