On 13-7-2011 10:05, Jaroslav Hajtmar wrote:
Hello all.
It is GREAT! Thanx Hans and Wolfgang too. It is very instructive and
inspiring for me...
I was looking for something similar for a long time, but I have not
found anything (not even in the CLD-MKIV and others ...). Finally, after
yours reply to this email find something in the ctx-man.pdf from 1997
year :-).
But I have a few questions and comments on this subject:
1. Is there any possibility to do anything similar with counters,
dimensions etc? I trying but without success.
For example:
context.newcount(mycounter) or context.newcounter(mycounter)
context.mycounter=5 etc.
As currently we cannot define a counter at the tex end (using countdef)
it would introduce too much complexitity to mimmick that now.
When you do:
context.newcount("name")
you should realize that this command is effectuated after the lua call,
so if you want a counter also at the tex level you should define it at
that end,
\newcount\name
or it must be realized by classical way:
context('\\newcount\\mycounter')
context('\\mycounter=10')
context('\\advance\\mycounter by5')
context('\\the\\mycounter')
tex.count.name = 10
tex.count.name = tex.count.name + 5
if you never need the counter at the tex end, you can of course use a
lua number instead.
similary with \newdimen, \newif etc...
at some point we will have helpers for that
2. Any person interested in using context.setvalue{"Mymacro",somevalue)
and context([[\def\MyMacro#1{#1}]]) syntaxes I have pointed out that the
second syntax only operates when the command is given in a separate LUA
file (ie file.lua) (ie not within an environment \startluacode -
\stopluacode in classical TEX file!!!). Hans told me once that it is the
individual categories of characters (backslash??) (if I remember
correctly).
First syntax works perfectly in LUA and TeX files too.
indeed, but if you already have the command and it's defined as
unexpandable then you can use the [[ ]] method too
Here I have a question. Why not comment out this case in TEX file?
\startluacode
-- context([[\def\macro#1{#1}]])
\stopluacode
I get error:
! Undefined control sequence.
-- context([[\def \macro
#1{#1}]])
\dodostartluacode ...and \directlua \zerocount {#1
}}
l.25 \stopluacode
?
That category characters again? Comment character -- works differently
in TEX file, and otherwise in the LUA file?
Ie. comment on the backslash?
indeed
3. Wolfgang write about using context command
\convertnumber{R}{1400} and the corresponding syntax:
context.convertnumber("R",1400) to roman converting.
It is great, but I could not figure out how to use in combination with
the above syntax (ie use case context.command) or find the appropriate
conversion LUA function (I did not use a custom function).
Is there any way to do something like that:
context([[\def\Macro%s{Macro%s}]],context.convertnumber("R",1400),1400) ???
ie. TEX command is used as a LuaTeX parameter?
context([[\def\Macro%s{Macro%s}]],converters.romannumeral(1400),1400)
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
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