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From: Taco Hoekwater <taco@elvenkind.com>
To: hajtmar@gyza.cz, mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Using lua to define a macro with one optional parameter in brackets
Date: Wed, 8 Jul 2015 12:07:22 +0200	[thread overview]
Message-ID: <E9AB13EC-E0AF-4754-9539-CA41078AD71F@elvenkind.com> (raw)
In-Reply-To: <559CE7C3.9030007@gyza.cz>


> On 08 Jul 2015, at 11:05, Jaroslav Hajtmar <hajtmar@gyza.cz> wrote:
> 
> Hello ConTeXist.
> 
> Within the one very complex problem I need to solve the following case. I want using lua code to define a macro with one optional parameter in brackets.

Simplest solution I know is this:

\startluacode
interfaces.definecommand ('dolastname', {
    arguments = { { "option", "string" }  },
    macro = function (opt_1)
       if #opt_1>0 then context(opt_1) else context('nothing') end 
    end
})
interfaces.definecommand ('lastname', {
    macro = function ()
       context.dosingleempty()
       context.dolastname()
    end
})
\stopluacode

Best wishes,
Taco
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  reply	other threads:[~2015-07-08 10:07 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-08  9:05 Jaroslav Hajtmar
2015-07-08 10:07 ` Taco Hoekwater [this message]
2015-07-08 10:40   ` Jaroslav Hajtmar
2015-07-08 11:04   ` Jaroslav Hajtmar
2015-07-08 11:28     ` Taco Hoekwater
2015-07-08 11:58       ` Jaroslav Hajtmar
2015-07-08 12:11         ` Taco Hoekwater
2015-07-08 14:11           ` Jaroslav Hajtmar
2015-07-08 18:54             ` Hans Hagen
2015-07-09  5:22               ` Jaroslav Hajtmar
2015-07-09  7:25                 ` Taco Hoekwater
2015-07-09  9:07                 ` Hans Hagen
2015-07-09 15:05                   ` Jaroslav Hajtmar
2015-07-09 15:24                     ` Hans Hagen
2015-07-10 20:40                       ` Jaroslav Hajtmar
2015-07-13 13:04 Jaroslav Hajtmar
2015-07-13 14:14 ` Hans Hagen

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