coloring the logfile

Hans van der Meer

28 Aug 2019 28 Aug '19

1:54 p.m.

Is it possible to force lines written in the log with \writestatus to have a specific color? The log can be very substantial and it would be nice to have some lines brought to attention by a different color. dr. Hans van der Meer

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Henning Hraban Ramm

28 Aug 28 Aug

11:35 p.m.

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Am 2019-08-28 um 21:54 schrieb Hans van der Meer :

Is it possible to force lines written in the log with \writestatus to have a specific color? The log can be very substantial and it would be nice to have some lines brought to attention by a different color.

As a text file, the log can’t have colors. Only the output to your terminal could have ANSI color codes. I’d welcome this, too, but then we need additional configuration, color breaks easily on some shells, the feature should adhere to the usual shell variables etc. Don’t know it it would be worth the effort. Greetlings, Hraban --- https://www.fiee.net http://wiki.contextgarden.net https://www.dreiviertelhaus.de GPG Key ID 1C9B22FD

Henri Menke

29 Aug 29 Aug

1:39 a.m.

On 29/08/19 5:35 PM, Henning Hraban Ramm wrote:

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Am 2019-08-28 um 21:54 schrieb Hans van der Meer :

Is it possible to force lines written in the log with \writestatus to have a specific color? The log can be very substantial and it would be nice to have some lines brought to attention by a different color.

As a text file, the log can’t have colors.

Only the output to your terminal could have ANSI color codes. I’d welcome this, too, but then we need additional configuration, color breaks easily on some shells, the feature should adhere to the usual shell variables etc. Don’t know it it would be worth the effort.

This will need engine support but is in principle dead easy. #include if (isatty(fileno(stdout))) { // color } else { // no color }

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Greetlings, Hraban --- https://www.fiee.net http://wiki.contextgarden.net https://www.dreiviertelhaus.de GPG Key ID 1C9B22FD

___________________________________________________________________________________ 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 ___________________________________________________________________________________

Hans van der Meer

2:25 a.m.

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On 29/08/19 5:35 PM, Henning Hraban Ramm wrote: This will need engine support but is in principle dead easy.

So it seems doable if someone is willing to provide the engine support. I sincerely hope it will be done. With many thanks, of course. dr. Hans van der Meer

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On 29 Aug 2019, at 09:39, Henri Menke wrote:

On 29/08/19 5:35 PM, Henning Hraban Ramm wrote:

...
...
Am 2019-08-28 um 21:54 schrieb Hans van der Meer :

Is it possible to force lines written in the log with \writestatus to have a specific color? The log can be very substantial and it would be nice to have some lines brought to attention by a different color.

As a text file, the log can’t have colors.

Only the output to your terminal could have ANSI color codes. I’d welcome this, too, but then we need additional configuration, color breaks easily on some shells, the feature should adhere to the usual shell variables etc. Don’t know it it would be worth the effort.

This will need engine support but is in principle dead easy.

#include

if (isatty(fileno(stdout))) { // color } else { // no color }

...
Greetlings, Hraban --- https://www.fiee.net http://wiki.contextgarden.net https://www.dreiviertelhaus.de GPG Key ID 1C9B22FD

___________________________________________________________________________________ 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 ___________________________________________________________________________________

___________________________________________________________________________________ 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 ___________________________________________________________________________________

Taco Hoekwater

2:58 a.m.

Hi, FWIW: ConTeXt can already do colours on the terminal: context —ansi myfile.tex (but that currently results in an empty log, I think because there is no separation) Since the engine internals know and expose the difference between terminal and log file already, it is quite possible to split the lua messaging code into separate 'log' and 'term’ cases, if desired. There is no need to patch the engine for that, just some extra lua code that Hans has to be willing to write/include. However, if support for redirect of stdout is needed (because in that case the ’term’ in internal TeX speak is not really a terminal), then isatty() needs to be exposed to Lua in one way or another. If you want color in the actual log, then someone has to rewrite the log reporting lua code to generate RTF or HTML. Should technically be doable as well... BTW, it is not safe to assume that all ttys actually support ansi colours (remote terminals quite often do not), so a command-line switch would still be needed. Best wishes, Taco

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On 29 Aug 2019, at 10:25, Hans van der Meer wrote:

...
On 29/08/19 5:35 PM, Henning Hraban Ramm wrote: This will need engine support but is in principle dead easy.

So it seems doable if someone is willing to provide the engine support. I sincerely hope it will be done. With many thanks, of course.

...

dr. Hans van der Meer

...
On 29 Aug 2019, at 09:39, Henri Menke wrote:

On 29/08/19 5:35 PM, Henning Hraban Ramm wrote:

...
...
Am 2019-08-28 um 21:54 schrieb Hans van der Meer :

Is it possible to force lines written in the log with \writestatus to have a specific color? The log can be very substantial and it would be nice to have some lines brought to attention by a different color.

As a text file, the log can’t have colors.

Only the output to your terminal could have ANSI color codes. I’d welcome this, too, but then we need additional configuration, color breaks easily on some shells, the feature should adhere to the usual shell variables etc. Don’t know it it would be worth the effort.

This will need engine support but is in principle dead easy.

#include

if (isatty(fileno(stdout))) { // color } else { // no color }

...
Greetlings, Hraban --- https://www.fiee.net http://wiki.contextgarden.net https://www.dreiviertelhaus.de GPG Key ID 1C9B22FD

___________________________________________________________________________________ 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 ___________________________________________________________________________________

___________________________________________________________________________________ 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 ___________________________________________________________________________________

___________________________________________________________________________________ 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 ___________________________________________________________________________________

Taco Hoekwater Elvenkind BV

Hans Hagen

5:37 p.m.

On 8/29/2019 10:58 AM, Taco Hoekwater wrote:

...

Hi,

FWIW: ConTeXt can already do colours on the terminal:

context —ansi myfile.tex

(but that currently results in an empty log, I think because there is no separation)

probably, i forgot the details (in the middle of somethign else so it has to wait) and i have disabled ansi in the console so i need to set that up

...

Since the engine internals know and expose the difference between terminal and log file already, it is quite possible to split the lua messaging code into separate 'log' and 'term’ cases, if desired. There is no need to patch the engine for that, just some extra lua code that Hans has to be willing to write/include.

However, if support for redirect of stdout is needed (because in that case the ’term’ in internal TeX speak is not really a terminal), then isatty() needs to be exposed to Lua in one way or another.

sure btu the problem is that it adds a some overhead as we then have to 'generate' two messages, one for the console an done for the log

...

If you want color in the actual log, then someone has to rewrite the log reporting lua code to generate RTF or HTML. Should technically be doable as well...

that was actually one of the first things done (decade old code), i.e. context can launch a browser on an error or after a run but i gave up on using it because there is no way to update automatically so one ends up with numerous tabs

...

BTW, it is not safe to assume that all ttys actually support ansi colours (remote terminals quite often do not), so a command-line switch would still be needed. i did the ansi as a gimmick and never use it (it is also slower)

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 -----------------------------------------------------------------

Hans Hagen

6:30 p.m.

On 8/30/2019 1:37 AM, Hans Hagen wrote:

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On 8/29/2019 10:58 AM, Taco Hoekwater wrote:

...
Hi,

FWIW: ConTeXt can already do colours on the terminal:

context —ansi myfile.tex

(but that currently results in an empty log, I think because there is no separation) ok, in next beta:

--ansilog pipes ansi to console and log and strips ansi from the log afterwards which is quite efficient (more than some complex and slower dual code path for a fancy feature) 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 -----------------------------------------------------------------

Hans Hagen

5:38 p.m.

On 8/29/2019 10:58 AM, Taco Hoekwater wrote:

...

Hi,

FWIW: ConTeXt can already do colours on the terminal:

context —ansi myfile.tex

(but that currently results in an empty log, I think because there is no separation) btw, i always run in the editor and there is no ansi in the log pane

----------------------------------------------------------------- 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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Hans Hagen
Hans van der Meer
Henning Hraban Ramm
Henri Menke
Taco Hoekwater