From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: luatexing
Date: Sun, 13 Apr 2008 13:58:25 +0200 [thread overview]
Message-ID: <4801F561.9070303@wxs.nl> (raw)
In-Reply-To: <48012E01.9002.2AAF904@wwl.musensturm.de>
Wolfgang Werners-Lucchini wrote:
> On 12 Apr 2008 at 9:39, ntg-context-request@ntg.nl wrote:
>
>>> I have a few silly questions about
>>>
>>> tex.print()
>>>
>>> To produce
>>>
>>> $\sqrt{2}=1.4142135623731$
>>>
>>> it should be enough to write
>>>
>>> tex.print("$\\sqrt{2}=" .. math.sqrt(2) .. "$")
>> this is because \\ can mean anything, for instance it may expand to
>> \par or \crlf or ..
>
> May be I do not understand this right, but I thought that '\' is luas
> escape character and tex.print() returns '\' not '\\'. So TeX sees no
> macro '\\' which could expand to whatever.
it depends on where you code lives ... in a lua file, then \\ is an
escape, in \directlua (or \ctxlua cum suis), then it's a tex cs
your mail only shows the one line of code so we have to guess
>> there is a \luaescapestring primitive which catches things like
>> quotes
>
> Can you make a little example of usage?
>
>> tex.print("\detokenize{$\sqrt{2}=}" .. math.sqrt(2) .. "$")
well, if you put that in your document, you'l get a typeset tex.sprint,
so i assume that tis is wrapped in \directlua or so?
> Could not find the definition of \detokenize.
an etex primitive
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next prev parent reply other threads:[~2008-04-13 11:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.4851.1207985975.4340.ntg-context@ntg.nl>
2008-04-12 19:47 ` luatexing Wolfgang Werners-Lucchini
2008-04-13 8:59 ` luatexing Taco Hoekwater
2008-04-13 11:58 ` Hans Hagen [this message]
2008-04-12 19:47 ` mplib Wolfgang Werners-Lucchini
2008-04-13 10:31 ` mplib Taco Hoekwater
2008-04-11 23:37 luatexing Wolfgang Werners-Lucchini
2008-04-12 7:29 ` luatexing Hans Hagen
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