From: Aditya Mahajan <adityam@umich.edu>
To: Hans Hagen <j.hagen@xs4all.nl>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Problem with Filter Module in latent context beta
Date: Mon, 16 Apr 2018 17:27:34 -0400 (EDT) [thread overview]
Message-ID: <nycvar.YAK.7.76.44.1804161724590.9612@ybpnyubfg.ybpnyqbznva> (raw)
In-Reply-To: <ab47137f-8d39-8f3f-a19e-6bd9c837a487@xs4all.nl>
On Sun, 15 Apr 2018, Hans Hagen wrote:
> On 4/15/2018 7:08 AM, Aditya Mahajan wrote:
>> On Sun, 15 Apr 2018, Hans Hagen wrote:
>>
>>> On 4/14/2018 9:52 PM, Lutz Haseloff wrote:
>>>> I get another error message:
>>>>
>>>> open source > level 4, order 5, name 't-module-catcodes.tex'
>>>> loading > Module Catcodes (ver: 2011.12.17)
>>>>
>>>> tex error > tex error on line 96 in file t-module-catcodes.tex: !
>>>> Undefined control sequence
>>> why are special catcodes needed? an dif so, there are often easier ways
>>> than low level hacking
>>
>> This is the commit (from 2011!) where I added this code:
>>
>> https://github.com/adityam/filter/commit/c34023fd1ede0909a056a10c6352202f2295fba4
>>
>> My guess is that I did not want multiple newlines to collapse in t-vim, so
>> I had redefined \activeendoflinetoken to {\strut\par}. The offending lines
>> are copied from catc-ini.mkiv from the same time:
>>
>> https://github.com/contextgarden/context-mirror/blob/5056d7a854142aa63032b0a3ca4d41c496e41faf/tex/context/base/catc-ini.mkiv
>>
>> to make sure that I use the same syntax for MkII and MkIV.
>>
>> A couple of years after that I split the MkII and MkIV code into separate
>> files, but I never touched the catcode part (because it was working).
>>
>> I cannot test the latest beta right now; I'll test it on Monday. In the
>> meanwhile, what is the current recommended method to alter the way literal
>> newlines and tabs are shown.
> \starttext
>
> \start
> \def\obeyedline{\blank[line]} \obeylines
>
> line 1
>
>
> line 2
>
> line 3
>
> \stop
>
> \stoptext
>
> blank will cleanup for you
I don't want multiple empty lines to collapse (this is for code listing).
Here is a minimal example showing what t-vim is doing:
\newcatcodetable \MinimalCatcodes
\startcatcodetable \MinimalCatcodes % for reading t-vim output
\catcode\backslashasciicode = \escapecatcode
\catcode\leftbraceasciicode = \begingroupcatcode
\catcode\rightbraceasciicode = \endgroupcatcode
\catcode\endoflineasciicode = \activecatcode
\catcode\formfeedasciicode = \othercatcode
\catcode\spaceasciicode = \othercatcode
\stopcatcodetable
\starttext
\bgroup
\def\obeyedline{\strut\par}
%\def\obeyedline{\blank[line]}
\setcatcodetable\MinimalCatcodes\letcharcode\endoflineasciicode\obeyedline
This is a \color[red]{test}
To check multiple lines as well as color
\egroup
\stoptext
If I replace the {\strut\par} with {\blank[line]}, multiple empty lines
are collapsed to a single line.
Aditya
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next prev parent reply other threads:[~2018-04-16 21:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-14 12:21 Lutz Haseloff
2018-04-14 13:02 ` Aditya Mahajan
2018-04-14 15:59 ` Hans Hagen
2018-04-14 19:52 ` Lutz Haseloff
2018-04-14 22:07 ` Hans Hagen
2018-04-15 5:08 ` Aditya Mahajan
2018-04-15 10:21 ` Hans Hagen
2018-04-16 16:52 ` Aditya Mahajan
2018-04-16 17:55 ` Hans Hagen
2018-04-16 21:27 ` Aditya Mahajan [this message]
2018-04-16 21:59 ` Hans Hagen
2018-04-16 22:01 ` Aditya Mahajan
2018-04-17 8:09 ` Hans Hagen
2018-04-17 12:03 ` Aditya Mahajan
2018-04-17 17:19 ` Aditya Mahajan
2018-04-17 2:52 ` Aditya Mahajan
2018-04-17 3:48 ` Lutz Haseloff
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