[NTG-context] tip

[Hans Hagen]

Hi,

When checking soem code I saw this (again):


\definecolor[MyColor][t=.5,a=1,r=.5]

\hpack\bgroup
\framed[framecolor=MyColor,frame=on]{}
\framed[framecolor=MyColor,frame=closed]{}
\framed[framecolor=MyColor,frame=small] {}
\egroup

Just in case someone needs these subtle differerences (and then is 
doomed to wikify it).


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] tip

[Rik Kabel]

On 2016-02-16 11:18, Hans Hagen wrote:

On 2/16/2016 4:23 PM, Alan BRASLAU wrote:

On Tue, 16 Feb 2016 11:30:50 +0100
Hans Hagen  wrote:


  Can we get a guide?

some day ... but your observations are quite ok ...


You could Wikify it! ;-)


Me? Rik you mean ...

Hans (too busy with other manuals)



Done.

I updated the description at Command/enabletrackers 
 and added two 
pages, Trackers/typesetters.suspects 
 and 
Trackers/visualizers.justification 
. I am 
not well-versed in the structure of the wiki, so perhaps others can add 
appropriate decorations to the new pages, and move the new pages if they 
belong elsewhere. Others might also be interested in adding 
documentation for other trackers in that hierarchy.


--
rik
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Re: [NTG-context] tip

[Hans Hagen]

On 2/16/2016 4:23 PM, Alan BRASLAU wrote:

On Tue, 16 Feb 2016 11:30:50 +0100
Hans Hagen  wrote:


  Can we get a guide?

some day ... but your observations are quite ok ...


You could Wikify it! ;-)


Me? Rik you mean ...

Hans (too busy with other manuals)


-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
-
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Re: [NTG-context] tip

[Alan BRASLAU]

On Tue, 16 Feb 2016 11:30:50 +0100
Hans Hagen  wrote:

>  Can we get a guide?  
> 
> some day ... but your observations are quite ok ...

You could Wikify it! ;-)

Alan
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Re: [NTG-context] tip

[Hans Hagen]

On 2/16/2016 3:52 AM, Rik Kabel wrote:

On 2016-02-15 04:56, Hans Hagen wrote:

Hi,

There are quite some probably unknown features in context, here are two:

\enabletrackers[visualizers.justification] % overfull/underfull
\enabletrackers[typesetters.suspects] % suspicious spacing

\setuplayout[width=3mm] \showframe

\starttext

\hsize 3mm

xxx

x

$x$x

x:$x$

\stoptext


Interesting stuff. Can you point to or provide documentation on the
meaning of the hbar colors? (I did try to follow the code, but could not
make sense of it.)

With visualizers.justification, I see:

  * green
  o after loose text?
  * blue
  o in margin after tight text?


these are the bad ones

can also become red when no stretch/shrink permitted


  * yellow
  o around centering text
  * cyan
  o before flush-right text?
  * magenta
  o after flush-left text?


these are suboptimal ones (often harmless) .. the color reflects the 
flush mode



It is not clear what these all mean (except the yellow). What is the
difference between magenta and green (I see both in tables and some
column-set paragraphs)? What is the difference between green and blue?
Does green show how close to needing intraword space compression while
blue indicates the degree of compression that was done?


green is used with normal justification


With typesetters.suspects, I see

  * orange with
  o required space (*~*)
  o occasionally between words where no markup appeared (could this
flag a small word space?)


they normally reflect those invisible spacing characters being used (non 
break space and so)



  * maroon with
  o *’* preceded by whitespace as with the contraction /’tis/
  o *»* preceded by whitespace as an opening quotation mark for German
  * blue with
  o most punctuation, but not *]* or *)*, when at paragraph end or
not followed by whitespace
  o some punctuation (*@ # & % *** / …***·* *and others) at any
position
  o *.* preceding a character other than *]*
  o *.* preceding *\,*
  o some asterisms ⁂ (the second and third when three spaced are
used as a break)
  * green with
  o ς directly preceding another letter (perhaps other terminal
characters, my sample only has this)
  o digit preceding *,* in index
  o italic letter preceding or following an upright character
  o small-cap letter preceding or following a non-whitespace character

There are some obvious patterns here (font style transitions, for
example) but the logic some seems less clear. Can we get a guide?


some day ... but your observations are quite ok ... the colors are 
chosen to make sure they don't collapse too much


it's something we use in automated workflows involving thousands of xml 
files coming from repositories so that a quick visual check of what can 
be wrong is needed (much involves spacing as that is what often gets 
messed up in the xml editors / converters / tools that are used at the 
publishers / editors end)


Hans


-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
-
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Re: [NTG-context] tip

[Rik Kabel]

On 2016-02-15 04:56, Hans Hagen wrote:

Hi,

There are quite some probably unknown features in context, here are two:

\enabletrackers[visualizers.justification] % overfull/underfull
\enabletrackers[typesetters.suspects] % suspicious spacing

\setuplayout[width=3mm] \showframe

\starttext

\hsize 3mm

xxx

x

$x$x

x:$x$

\stoptext

Interesting stuff. Can you point to or provide documentation on the 
meaning of the hbar colors? (I did try to follow the code, but could not 
make sense of it.)


With visualizers.justification, I see:

 * green
 o after loose text?
 * blue
 o in margin after tight text?
 * yellow
 o around centering text
 * cyan
 o before flush-right text?
 * magenta
 o after flush-left text?

It is not clear what these all mean (except the yellow). What is the 
difference between magenta and green (I see both in tables and some 
column-set paragraphs)? What is the difference between green and blue? 
Does green show how close to needing intraword space compression while 
blue indicates the degree of compression that was done?


With typesetters.suspects, I see

 * orange with
 o required space (*~*)
 o occasionally between words where no markup appeared (could this
   flag a small word space?)
 * maroon with
 o *’* preceded by whitespace as with the contraction /’tis/
 o *»* preceded by whitespace as an opening quotation mark for German
 * blue with
 o most punctuation, but not *]* or *)*, when at paragraph end or
   not followed by whitespace
 o some punctuation (*@ # & % *** / …***·* *and others) at any
   position
 o *.* preceding a character other than *]*
 o *.* preceding *\,*
 o some asterisms ⁂ (the second and third when three spaced are
   used as a break)
 * green with
 o ς directly preceding another letter (perhaps other terminal
   characters, my sample only has this)
 o digit preceding *,* in index
 o italic letter preceding or following an upright character
 o small-cap letter preceding or following a non-whitespace character

There are some obvious patterns here (font style transitions, for 
example) but the logic some seems less clear. Can we get a guide?

--
rik
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[NTG-context] tip

[Hans Hagen]

Hi,

There are quite some probably unknown features in context, here are two:

\enabletrackers[visualizers.justification] % overfull/underfull
\enabletrackers[typesetters.suspects] % suspicious spacing

\setuplayout[width=3mm] \showframe

\starttext

\hsize 3mm

xxx

x

$x$x

x:$x$

\stoptext


Hans


-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
-
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[NTG-context] Tip: PlaceRegisterInline

[Mike Bird]

In Context one can use registers for powerful sorting with single
or multiple keys.  However, it's a little tricky if you want the
result to appear other than one element per line.

Here's a macro that does the job:

\def\PlaceRegisterInline[#1,#2,#3]{%  Register Before After
  \bgroup
  \let\par=\empty
  \let\endgraf=\empty
  \edef\goodbreak{#2}%
  \let\doregistercharactera=\doregistercharacterb
  \placeregister[#1][%
after=,%
before=,%
distance={0em{#3}},%
indicator=no,%
n=1,%
symbol=none]%
  \egroup}

For example, to place elements of register R in brackets one
can use \PlaceInlineRegister[R,{[},{]}] and achieve something
like [A][B][C].

--Mike Bird
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