Re: [NTG-context] Protrusion cancellation by index term

2016-04-10 Thread Hans Hagen 

On 4/10/2016 12:53 PM, Jan Tosovsky wrote:

On 2016-04-03 Hans Hagen wrote:

On 4/1/2016 9:59 PM, Jan Tosovsky wrote:

On 2016-04-01 Hans Hagen wrote:

On 3/31/2016 10:47 PM, Wolfgang Schuster wrote:

On 2016-03-31 Jan Tosovsky wrote:

I couldn't find any details for that \leftboundary


spac-ver.mkiv:

\unexpanded\def\leftboundary   {\boundary\plusone}
\unexpanded\def\rightboundary  {\boundary\plustwo}


it will instruct the protrusion checker to skip the next or
previous node (e.g. a char or hbox or ...) when looking for
an edge


Thanks for details. So if that worked with plain \hbox should be

taken rather as coincidence?

a hbox becomes one node so that one node is ignored



I found a nasty drawback of this method. If that hbox is used, the first 
paragraph is not evaluated correctly and considered as the second one. When 
indentation is enabled, the first paragraph after the title is not usually 
indented, but now it is. Additionaly, even if indenting is disabled, there is a 
bigger distance between title and the following para.

\setupindenting[yes, 2em]

\starttext

\section{The first section}\index{the first section}

The first para.\par
The second para.

\section{The second section}\leftboundary\hbox{\index{the second section}}

The first para.\par
The second para.

\stoptext


I could eventually avoid inserting that 'index' tweak into titles, but this is 
another exception which an end-user should keep in mind ..and.. I hate 
exceptions ;-)

Any idea?


everything protrusion is an exception

\unexpanded\def\myindex#1%
  {\dontleavehmode
   \ifcase\normalprotrudechars\else\leftboundary\hbox\fi
   {\index{#1}}}

might work (untested) given that protrusion is off in the title

Hans


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Re: [NTG-context] Protrusion cancellation by index term

2016-04-10 Thread Jan Tosovsky 
On 2016-04-03 Hans Hagen wrote:
> On 4/1/2016 9:59 PM, Jan Tosovsky wrote:
> > On 2016-04-01 Hans Hagen wrote:
> >> On 3/31/2016 10:47 PM, Wolfgang Schuster wrote:
>  On 2016-03-31 Jan Tosovsky wrote:
> 
>  I couldn't find any details for that \leftboundary
> >>>
> >>> spac-ver.mkiv:
> >>>
> >>> \unexpanded\def\leftboundary   {\boundary\plusone}
> >>> \unexpanded\def\rightboundary  {\boundary\plustwo}
> >>
> >> it will instruct the protrusion checker to skip the next or
> >> previous node (e.g. a char or hbox or ...) when looking for
> >> an edge
> >
> > Thanks for details. So if that worked with plain \hbox should be
> taken rather as coincidence?
> 
> a hbox becomes one node so that one node is ignored
> 

I found a nasty drawback of this method. If that hbox is used, the first 
paragraph is not evaluated correctly and considered as the second one. When 
indentation is enabled, the first paragraph after the title is not usually 
indented, but now it is. Additionaly, even if indenting is disabled, there is a 
bigger distance between title and the following para.

\setupindenting[yes, 2em]

\starttext

\section{The first section}\index{the first section}

The first para.\par
The second para.

\section{The second section}\leftboundary\hbox{\index{the second section}}

The first para.\par
The second para.

\stoptext


I could eventually avoid inserting that 'index' tweak into titles, but this is 
another exception which an end-user should keep in mind ..and.. I hate 
exceptions ;-)

Any idea?

Thanks, Jan

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Re: [NTG-context] Protrusion cancellation by index term

2016-04-03 Thread Hans Hagen 

On 4/1/2016 9:59 PM, Jan Tosovsky wrote:

On 2016-04-01 Hans Hagen wrote:

On 3/31/2016 10:47 PM, Wolfgang Schuster wrote:

On 2016-03-31 Jan Tosovsky wrote:

I couldn't find any details for that \leftboundary


spac-ver.mkiv:

\unexpanded\def\leftboundary   {\boundary\plusone}
\unexpanded\def\rightboundary  {\boundary\plustwo}


it will instruct the protrusion checker to skip the next or
previous node (e.g. a char or hbox or ...) when looking for
an edge


Thanks for details. So if that worked with plain \hbox should be taken rather 
as coincidence?


a hbox becomes one node so that one node is ignored


I prefer motto the fewer commands, the better :-)

Jan


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Re: [NTG-context] Protrusion cancellation by index term

2016-04-01 Thread Jan Tosovsky 
On 2016-04-01 Hans Hagen wrote:
> On 3/31/2016 10:47 PM, Wolfgang Schuster wrote:
> > > On 2016-03-31 Jan Tosovsky wrote:
> > >
> > > I couldn't find any details for that \leftboundary
> >
> > spac-ver.mkiv:
> >
> > \unexpanded\def\leftboundary   {\boundary\plusone}
> > \unexpanded\def\rightboundary  {\boundary\plustwo}
> 
> it will instruct the protrusion checker to skip the next or 
> previous node (e.g. a char or hbox or ...) when looking for 
> an edge

Thanks for details. So if that worked with plain \hbox should be taken rather 
as coincidence?

I prefer motto the fewer commands, the better :-)

Jan


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Re: [NTG-context] Protrusion cancellation by index term

2016-04-01 Thread Hans Hagen 

On 3/31/2016 9:28 PM, Jan Tosovsky wrote:

On 2016-03-31 Hans Hagen wrote:

On 3/30/2016 9:53 PM, Jan Tosovsky wrote:

On 2016-03-22 Hans Hagen wrote:

On 3/21/2016 10:59 PM, Jan Tosovsky wrote:

On 2014-02-23 Hans Hagen wrote:

On 2/22/2014 2:38 PM, Jan Tosovsky wrote:

On 2014-02-22 Jan Tosovsky wrote:


when a punctuated phrase appears at the beginning of the
line, it is not protruded correctly when preceded by an
index term.

... \index{foo}>Bar< ...

A minimal example is available at
http://drifted.in/other/sample.tex


I'd be grateful for ignoring any non document content
preceding punctuation to avoid its influence on protrusion.


it's not that trivial

for the index we can cheat a bit but then i also need to
check lots of other cases for possible interference


you can try to do this:

\leftboundary\hbox{\index{foo}}


Wow, I am quite satisfied with this solution.

Btw, I couldn't find any details for that \leftboundary command either in TeX 
[1] or ConTeXt [2] command references.

I've tried it just with \hbox{} and it works as well.

Couldn't this be generalized in a way - if you want protrusion even in edge 
cases, any inline commands have to be wrapped in \hbox{} ?


because for instance you wouldn't want to protrude into a constructed 
compound hyphen which is a inline construct, just as you don't want to 
protrude into a formula or something explicitely boxed


Hans

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Re: [NTG-context] Protrusion cancellation by index term

2016-04-01 Thread Hans Hagen 

On 3/31/2016 10:47 PM, Wolfgang Schuster wrote:

Jan Tosovsky 
31. März 2016 um 21:28

Wow, I am quite satisfied with this solution.

Btw, I couldn't find any details for that \leftboundary command either
in TeX [1] or ConTeXt [2] command references.

The \leftboundary command uses a new LuaTeX primitive which means you
can’t find it in a TeX [1] reference.

spac-ver.mkiv:

\unexpanded\def\leftboundary   {\boundary\plusone}
\unexpanded\def\rightboundary  {\boundary\plustwo}


it will instruct the protrusion checker to skip the next or previous 
node (e.g. a char or hbox or ...) when looking for an edge


Hans

-
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Re: [NTG-context] Protrusion cancellation by index term

2016-03-31 Thread Wolfgang Schuster 

Jan Tosovsky 
31. März 2016 um 21:28

Wow, I am quite satisfied with this solution.

Btw, I couldn't find any details for that \leftboundary command either 
in TeX [1] or ConTeXt [2] command references.
The \leftboundary command uses a new LuaTeX primitive which means you 
can’t find it in a TeX [1] reference.


spac-ver.mkiv:

\unexpanded\def\leftboundary   {\boundary\plusone}
\unexpanded\def\rightboundary  {\boundary\plustwo}

Wolfgang
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Re: [NTG-context] Protrusion cancellation by index term

2016-03-31 Thread Jan Tosovsky 
On 2016-03-31 Hans Hagen wrote:
> On 3/30/2016 9:53 PM, Jan Tosovsky wrote:
> > On 2016-03-22 Hans Hagen wrote:
> >> On 3/21/2016 10:59 PM, Jan Tosovsky wrote:
> >>> On 2014-02-23 Hans Hagen wrote:
>  On 2/22/2014 2:38 PM, Jan Tosovsky wrote:
> > On 2014-02-22 Jan Tosovsky wrote:
> >>
> >> when a punctuated phrase appears at the beginning of the 
> >> line, it is not protruded correctly when preceded by an 
> >> index term.
> >>
> >> ... \index{foo}>Bar< ...
> >>
> >> A minimal example is available at
> >> http://drifted.in/other/sample.tex
> >
> > I'd be grateful for ignoring any non document content 
> > preceding punctuation to avoid its influence on protrusion.
> >>
> >> it's not that trivial
> >>
> >> for the index we can cheat a bit but then i also need to 
> >> check lots of other cases for possible interference
> 
> you can try to do this:
> 
> \leftboundary\hbox{\index{foo}}
 
Wow, I am quite satisfied with this solution.

Btw, I couldn't find any details for that \leftboundary command either in TeX 
[1] or ConTeXt [2] command references.

I've tried it just with \hbox{} and it works as well.

Couldn't this be generalized in a way - if you want protrusion even in edge 
cases, any inline commands have to be wrapped in \hbox{} ?

Jan

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[1] https://www.tug.org/utilities/plain/cseq.html
[2] http://www.pragma-ade.com/general/qrcs/setup-en.pdf

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Re: [NTG-context] Protrusion cancellation by index term

2016-03-30 Thread Hans Hagen 

On 3/30/2016 9:53 PM, Jan Tosovsky wrote:

On 2016-03-22 Hans Hagen wrote:

On 3/21/2016 10:59 PM, Jan Tosovsky wrote:

On 2014-02-23 Hans Hagen wrote:

On 2/22/2014 2:38 PM, Jan Tosovsky wrote:

On 2014-02-22 Jan Tosovsky wrote:


when a punctuated phrase appears at the beginning of the line,
it is not protruded correctly when preceded by an index term.

... \index{foo}>Bar< ...

A minimal example is available at
http://drifted.in/other/sample.tex


It is more serious issue than expected. Consider next two
variants:

(1) sentence, \index{primary}>Primary<
(2) sentence,\index{primary} >Primary<

When the line is broken after a comma:
ad 1) starting guillemet is not protruded
ad 2) ending comma is not protruded

When \index is surrounded by spaces from both sides, the space
is rendered at the beginning of the next line (resulting in
'indenting').

I'd be grateful for ignoring any non document content preceding
punctuation to avoid its influence on protrusion.


well, think of it like this:

[something][something else]

with [something] being bound to < ... so that is then the
boundary of the word, not < ... i might know a solution (but such
-major- changes have to fit into my schedule)


are there any improvements here with revamped token processing
implemented in recent versions?


it's not that trivial

... for the index we can cheat a bit but then i also need to check lots
of other cases for possible interference



Can you roughly estimate when this could be further investigated?
Between 0.90-0.95, later or after 1.0?


further handling is unrelated to the engine because at that level it is 
not know what protrusion is expected (there are probably as many cases 
where you don't want to protrude as where you might want and hard coding 
solutions / heuristics is no option



I hope there will be some way to fix it in ConTeXt one day.


non trivial so very stepwise ... adding all kind of hacks just for 
protrusion can interfere with other mechanisms


you can try to do this:

\leftboundary\hbox{\index{foo}}

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Re: [NTG-context] Protrusion cancellation by index term

2016-03-30 Thread Jan Tosovsky 
On 2016-03-22 Hans Hagen wrote:
> On 3/21/2016 10:59 PM, Jan Tosovsky wrote:
> > On 2014-02-23 Hans Hagen wrote:
> >> On 2/22/2014 2:38 PM, Jan Tosovsky wrote:
> >>> On 2014-02-22 Jan Tosovsky wrote:
> 
>  when a punctuated phrase appears at the beginning of the line,
>  it is not protruded correctly when preceded by an index term.
> 
>  ... \index{foo}>Bar< ...
> 
>  A minimal example is available at
>  http://drifted.in/other/sample.tex
> 
> >>> It is more serious issue than expected. Consider next two
> >>> variants:
> >>>
> >>> (1) sentence, \index{primary}>Primary<
> >>> (2) sentence,\index{primary} >Primary<
> >>>
> >>> When the line is broken after a comma:
> >>> ad 1) starting guillemet is not protruded
> >>> ad 2) ending comma is not protruded
> >>>
> >>> When \index is surrounded by spaces from both sides, the space 
> >>> is rendered at the beginning of the next line (resulting in
> >>> 'indenting').
> >>>
> >>> I'd be grateful for ignoring any non document content preceding
> >>> punctuation to avoid its influence on protrusion.
> >>
> >> well, think of it like this:
> >>
> >> [something][something else]
> >>
> >> with [something] being bound to < ... so that is then the 
> >> boundary of the word, not < ... i might know a solution (but such 
> >> -major- changes have to fit into my schedule)
> >
> > are there any improvements here with revamped token processing
> > implemented in recent versions?
> 
> it's not that trivial
> 
> ... for the index we can cheat a bit but then i also need to check lots
> of other cases for possible interference
> 

Can you roughly estimate when this could be further investigated?
Between 0.90-0.95, later or after 1.0? 

I hope there will be some way to fix it in ConTeXt one day. 

Jan

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Re: [NTG-context] Protrusion cancellation by index term

2016-03-22 Thread Hans Hagen 

On 3/21/2016 10:59 PM, Jan Tosovsky wrote:

On 2014-02-23 Hans Hagen wrote:

On 2/22/2014 2:38 PM, Jan Tosovsky wrote:

On 2014-02-22 Jan Tosovsky wrote:


when a punctuated phrase appears at the beginning of the line,
it is not protruded correctly when preceded by an index term.

... \index{foo}>Bar< ...

A minimal example is available at
http://drifted.in/other/sample.tex

I cannot place the space character between these two parts
(which helps) as I sometimes need to join this and the previous
phrase with the non-breaking space.



It is more serious issue than expected. Consider next two
variants:

(1) sentence, \index{primary}>Primary<
(2) sentence,\index{primary} >Primary<

When the line is broken after a comma:
ad 1) starting guillemet is not protruded
ad 2) ending comma is not protruded

When \index is surrounded by spaces from both sides, the space is
rendered at the beginning of the next line (resulting in
'indenting').

I'd be grateful for ignoring any non document content preceding
punctuation to avoid its influence on protrusion.


well, think of it like this:

[something][something else]

with [something] being bound to < ... so that is then the boundary of
the word, not < ... i might know a solution (but such -major- changes
have to fit into my schedule)


are there any improvements here with revamped token processing implemented
in recent versions?


it's not that trivial

- for the index we can cheat a bit but then i also need to check lots of 
other cases for possible interference


- for the footnote case there is no real solution as the heuristics of 
finding a protrusion character cannot be tricked too much without 
breaking it in other cases


but ... i think i can cook up something extra in the engine to drive the 
process; i'll play with it but again. it will take a lot of testing so 
it will then probably be an option for a while


Hans

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Re: [NTG-context] Protrusion cancellation by index term

2016-03-21 Thread Jan Tosovsky 
On 2014-02-23 Hans Hagen wrote:
> On 2/22/2014 2:38 PM, Jan Tosovsky wrote:
> > On 2014-02-22 Jan Tosovsky wrote:
> > >
> > > when a punctuated phrase appears at the beginning of the line, 
> > > it is not protruded correctly when preceded by an index term.
> > >
> > > ... \index{foo}>Bar< ...
> > >
> > > A minimal example is available at
> > > http://drifted.in/other/sample.tex
> > >
> > > I cannot place the space character between these two parts 
> > > (which helps) as I sometimes need to join this and the previous 
> > > phrase with the non-breaking space.
> > >
> >
> > It is more serious issue than expected. Consider next two 
> > variants:
> >
> > (1) sentence, \index{primary}>Primary<
> > (2) sentence,\index{primary} >Primary<
> >
> > When the line is broken after a comma:
> > ad 1) starting guillemet is not protruded
> > ad 2) ending comma is not protruded
> >
> > When \index is surrounded by spaces from both sides, the space is
> > rendered at the beginning of the next line (resulting in 
> > 'indenting').
> >
> > I'd be grateful for ignoring any non document content preceding
> > punctuation to avoid its influence on protrusion.
> 
> well, think of it like this:
> 
> [something][something else]
> 
> with [something] being bound to < ... so that is then the boundary of
> the word, not < ... i might know a solution (but such -major- changes
> have to fit into my schedule)

are there any improvements here with revamped token processing implemented
in recent versions?

Thanks, Jan

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Re: [NTG-context] Protrusion cancellation by index term

2014-02-23 Thread Hans Hagen 

On 2/22/2014 2:38 PM, Jan Tosovsky wrote:

On 2014-02-22 Jan Tosovsky wrote:


when a punctuated phrase appears at the beginning of the line, it is
not protruded correctly when preceded by an index term.

... \index{foo}Bar ...

A minimal example is available at
http://drifted.in/other/sample.tex

I cannot place the space character between these two parts (which
helps) as I sometimes need to join this and the previous phrase with
the non-breaking space.



It is more serious issue than expected. Consider next two variants:

(1) sentence, \index{primary}Primary
(2) sentence,\index{primary} Primary

When the line is broken after a comma:
ad 1) starting guillemet is not protruded
ad 2) ending comma is not protruded

When \index is surrounded by spaces from both sides, the space is rendered
at the beginning of the next line (resulting in 'indenting').

:-S

I'd be grateful for ignoring any non document content preceding punctuation
to avoid its influence on protrusion.


well, think of it like this:

[something]text[something else]

with [something] being bound to  ... so that is then the boundary of 
the word, not  ... i might know a solution (but such -major- changes 
have to fit into my schedule)


Hans

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 | www.pragma-pod.nl
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Re: [NTG-context] Protrusion cancellation by index term

2014-02-22 Thread Jan Tosovsky 
On 2014-02-22 Jan Tosovsky wrote:

 when a punctuated phrase appears at the beginning of the line, it is
 not protruded correctly when preceded by an index term.
 
 ... \index{foo}Bar ...
 
 A minimal example is available at
 http://drifted.in/other/sample.tex
 
 I cannot place the space character between these two parts (which
 helps) as I sometimes need to join this and the previous phrase with 
 the non-breaking space.
 

It is more serious issue than expected. Consider next two variants:

(1) sentence, \index{primary}Primary 
(2) sentence,\index{primary} Primary

When the line is broken after a comma:
ad 1) starting guillemet is not protruded
ad 2) ending comma is not protruded

When \index is surrounded by spaces from both sides, the space is rendered
at the beginning of the next line (resulting in 'indenting').

:-S

I'd be grateful for ignoring any non document content preceding punctuation
to avoid its influence on protrusion.

Thanks, Jan

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[NTG-context] Protrusion cancellation by index term

2014-02-21 Thread Jan Tosovsky 
Dear All, 

when a punctuated phrase appears at the beginning of the line, it is not
protruded correctly when preceded by an index term.

... \index{foo}Bar ...

A minimal example is available at 
http://drifted.in/other/sample.tex

I cannot place the space character between these two parts (which helps) as
I sometimes need to join this and the previous phrase with the non-breaking
space.

Any idea how to fix this?

Thanks, Jan




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