Re: [NTG-context] Parsing \...luacode within a \def

2018-06-18 Thread Procházka Lukáš Ing .

Hello,

thanks for explanation -
I could not understand difference in behavior inside \def ("--" dismiss all following) 
and out of \def ("--" acts on the one line only);
so the explanation is "\startluacode INSIDE MACRO body acts like any such catcode 
regime changing operation"...

Best regards,

Lukas


On Thu, 14 Jun 2018 21:41:28 +0200, Hans Hagen  wrote:


On 6/14/2018 9:20 PM, Tomas Hala wrote:

Hi Lukáš,

I am not sure but I guess that the problem is related with the behaviour of
the input processor which erases characters at the end of line (CR, LF) and
replace them by a space. Then, the whole content between \start/stopluacode
is at only one line. If you the second way of comment marks, the letter "u"
will be shown at the output.

Tomáš

\def\U{%
   \startluacode
--[[ blahblah
]]--

 context("u")
   \stopluacode
}

indeed, \startluacode inside a macro body acts like any such catcode
regime changing operation ..

\def\foo{%
   f%oo
}

Hans

-
   Hans Hagen | PRAGMA ADE
   Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-


--
Ing. Lukáš Procházka | mailto:l...@pontex.cz
Pontex s. r. o.  | mailto:pon...@pontex.cz | http://www.pontex.cz | 
IDDS:nrpt3sn
Bezová 1658
147 14 Praha 4

Mob.: +420 702 033 396

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Re: [NTG-context] Parsing \...luacode within a \def

2018-06-14 Thread Hans Hagen

On 6/14/2018 9:20 PM, Tomas Hala wrote:

Hi Lukáš,

I am not sure but I guess that the problem is related with the behaviour of
the input processor which erases characters at the end of line (CR, LF) and
replace them by a space. Then, the whole content between \start/stopluacode
is at only one line. If you the second way of comment marks, the letter "u"
will be shown at the output.

Tomáš

\def\U{%
   \startluacode
--[[ blahblah
]]--

 context("u")
   \stopluacode
}
indeed, \startluacode inside a macro body acts like any such catcode 
regime changing operation ..


\def\foo{%
  f%oo
}

Hans

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
   tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] Parsing \...luacode within a \def

2018-06-14 Thread Tomas Hala
Hi Lukáš,

I am not sure but I guess that the problem is related with the behaviour of
the input processor which erases characters at the end of line (CR, LF) and
replace them by a space. Then, the whole content between \start/stopluacode
is at only one line. If you the second way of comment marks, the letter "u" 
will be shown at the output.

Tomáš 

\def\U{%
  \startluacode
--[[ blahblah
]]--

context("u")
  \stopluacode
}



Thu, Jun 14, 2018 ve 08:48:40PM +0200 Procházka Lukáš Ing. napsal(a):
# Hello,
# 
# I encountered a phenomena that I cannot understand. Let's have the following 
code:
# 
# 
# \def\T{%
#   \startluacode
# context("t")
#   \stopluacode
# }
# 
# \def\U{%
#   \startluacode
# --
# 
# context("u")
#   \stopluacode
# }
# 
# \starttext
#   A
#   \startluacode
# --
# 
# context("b")
#   \stopluacode
#   \T
#   \U
# \stoptext
# 
# 
# This gives "Abt" - but there is no "u".
# 
# It seems that the (first) comment mark "--" within a \startluacode within 
\def (here: \def\U) causes all code till \stopluacode is being ignored.
# 
# But why?
# 
# Maybe I'm missing something very basic...
# 
# Best regards,
# 
# Lukas
# 
# 
# -- 
# Ing. Lukáš Procházka | mailto:l...@pontex.cz
# Pontex s. r. o.  | mailto:pon...@pontex.cz | http://www.pontex.cz | 
IDDS:nrpt3sn
# Bezová 1658
# 147 14 Praha 4
# 
# Mob.: +420 702 033 396
# 
# 
___
# 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://context.aanhet.net
# archive  : https://bitbucket.org/phg/context-mirror/commits/
# wiki : http://contextgarden.net
# 
___

 Tomáš Hála

Mendelova univerzita, Provozně ekonomická fakulta, ústav informatiky
Zemědělská 1, CZ-613 00 Brno,  tel. +420 545 13 22 28

http://akela.mendelu.cz/~thala
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[NTG-context] Parsing \...luacode within a \def

2018-06-14 Thread Procházka Lukáš Ing .

Hello,

I encountered a phenomena that I cannot understand. Let's have the following 
code:


\def\T{%
   \startluacode
 context("t")
   \stopluacode
}

\def\U{%
   \startluacode
 --

 context("u")
   \stopluacode
}

\starttext
   A
   \startluacode
 --

 context("b")
   \stopluacode
   \T
   \U
\stoptext


This gives "Abt" - but there is no "u".

It seems that the (first) comment mark "--" within a \startluacode within \def 
(here: \def\U) causes all code till \stopluacode is being ignored.

But why?

Maybe I'm missing something very basic...

Best regards,

Lukas


--
Ing. Lukáš Procházka | mailto:l...@pontex.cz
Pontex s. r. o.  | mailto:pon...@pontex.cz | http://www.pontex.cz | 
IDDS:nrpt3sn
Bezová 1658
147 14 Praha 4

Mob.: +420 702 033 396

t3.mkiv
Description: Binary data


t3.pdf
Description: Adobe PDF document
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[NTG-context] Parsing \...luacode within a \def

2018-06-14 Thread Procházka Lukáš Ing .

Hello,

I encountered a phenomena that I cannot understand. Let's have the following 
code:


\def\T{%
  \startluacode
context("t")
  \stopluacode
}

\def\U{%
  \startluacode
--

context("u")
  \stopluacode
}

\starttext
  A
  \startluacode
--

context("b")
  \stopluacode
  \T
  \U
\stoptext


This gives "Abt" - but there is no "u".

It seems that the (first) comment mark "--" within a \startluacode within \def 
(here: \def\U) causes all code till \stopluacode is being ignored.

But why?

Maybe I'm missing something very basic...

Best regards,

Lukas


--
Ing. Lukáš Procházka | mailto:l...@pontex.cz
Pontex s. r. o.  | mailto:pon...@pontex.cz | http://www.pontex.cz | 
IDDS:nrpt3sn
Bezová 1658
147 14 Praha 4

Mob.: +420 702 033 396

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