italic correction

italic correction

[Idris S Hamid]

Dear syndicate,

Sometimes I make a definition like

\def\TR{\it}

for certain purposes (structural consistency, etc.). How do I modify
this to automatically do an italic correction the way \em is set up to
do in \ConTeXt?

======================

By the way, did Hans ever make a "final" ConTeXt logo? I still think
that

\def\Context{{\sc C\kern -.0667emo\kern -.0667emn\kern -.0549emt\kern
-.1667em\lower
              .5ex\hbox {e}\kern -.125emx\kern -.0549emt}}

looks better than Con\TeX{}t (and the smaller \TeX better reflects its
relative role in the whole package), and I've been using the former up
to now. Hope that's not a problem-)

best
Idris

Re: italic correction

[Patrick Gundlach]

Idris S Hamid <ishamid@lamar.colostate.edu> writes:

Hi,

> Sometimes I make a definition like
>
> \def\TR{\it}
>
> for certain purposes (structural consistency, etc.). How do I modify
> this to automatically do an italic correction the way \em is set up to
> do in \ConTeXt?

I'd do it like this:

\def\TR{\aftergroup \emphasiscorrection\it}

see the examples:

\def\TR{\aftergroup \/\it}
\startlines
{\it this is a roof}right?
{\TR this is a roof}right?
{\TR this is a roof}, right?
\def\TR{\aftergroup \emphasiscorrection\it}
{\TR this is a roof}right?
{\TR this is a roof}, right?
\stoplines


But I bet that there is a more clever way.

Patrick
-- 
Silent is the goldfish in its bowl

Re: italic correction

[Hans Hagen]

At 10:39 23/09/2003 -0600, you wrote:
>Dear syndicate,
>
>Sometimes I make a definition like
>
>\def\TR{\it}
>
>for certain purposes (structural consistency, etc.). How do I modify
>this to automatically do an italic correction the way \em is set up to
>do in \ConTeXt?
>
>======================
>
>By the way, did Hans ever make a "final" ConTeXt logo? I still think
>that
>
>\def\Context{{\sc C\kern -.0667emo\kern -.0667emn\kern -.0549emt\kern
>-.1667em\lower
>               .5ex\hbox {e}\kern -.125emx\kern -.0549emt}}
>
>looks better than Con\TeX{}t (and the smaller \TeX better reflects its
>relative role in the whole package), and I've been using the former up
>to now. Hope that's not a problem-)

To suit your needs i've added:

\def\italicsequence#1#2%
   {\ifx\fontalternative\c!sl#1\else
    \ifx\fontalternative\c!it#1\else
    \ifx\fontalternative\c!bs#1\else
    \ifx\fontalternative\c!bi#1\else#2\fi\fi\fi\fi}

\def\symbolicscaledfont#1#2%
   {\scaledfont\fontbody
    \scaledfont#1\scaledfont
    \font\definedfont\truefontname{\glyphfontfile{#2}} at
      \currentfontbodyscale\scaledfont
    \definedfont}

\def\symbolicfont
   {\symbolicscaledfont\plusone}

\unexpanded\def\getscaledglyph#1#2#3%
    {{\symbolicscaledfont{#1}{#2}\doifnumberelse{#3}\char\donothing#3}}

\def\Context
   {\dontleavehmode{C\kern -.0667em\getscaledglyph{.8}\empty{O\kern 
-.0667emN\kern
    -.0549emT\italicsequence{\kern-.1em}{\kern-.1667em}\lower.5ex\hbox
    {E}\italicsequence\empty{\kern-.11em}X\kern-.055emT}}}

This one adapts itself to sizes and styles and ...

{\Context  \Context \sl \Context \bid\Context}

(maybe some values will change)

Hans
-------------------------------------------------------------------------
                                   Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                       Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------
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                     documentation: http://www.pragma-ade.com/showcase.pdf
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Re: Re: italic correction

[Hans Hagen]

At 19:25 23/09/2003 +0200, you wrote:
>Idris S Hamid <ishamid@lamar.colostate.edu> writes:
>
>Hi,
>
> > Sometimes I make a definition like
> >
> > \def\TR{\it}
> >
> > for certain purposes (structural consistency, etc.). How do I modify
> > this to automatically do an italic correction the way \em is set up to
> > do in \ConTeXt?
>
>I'd do it like this:
>
>\def\TR{\aftergroup \emphasiscorrection\it}
>
>see the examples:
>
>\def\TR{\aftergroup \/\it}
>\startlines
>{\it this is a roof}right?
>{\TR this is a roof}right?
>{\TR this is a roof}, right?
>\def\TR{\aftergroup \emphasiscorrection\it}
>{\TR this is a roof}right?
>{\TR this is a roof}, right?
>\stoplines
>
>
>But I bet that there is a more clever way.

Of course:

\def\MyIt{\groupedcommand\it\/}

\ruledhbox{\it oeps}

\ruledhbox{\MyIt{oeps}}

\ruledhbox{{\MyIt oeps}}

Hans
-------------------------------------------------------------------------
                                   Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                       Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------
                        information: http://www.pragma-ade.com/roadmap.pdf
                     documentation: http://www.pragma-ade.com/showcase.pdf
-------------------------------------------------------------------------

Re: italic correction

[Patrick Gundlach]

Hi,

> Of course:
>
> \def\MyIt{\groupedcommand\it\/}

I came across \groupedcommand some time ago and I wondered why it is
in there (and not in supp-fun.tex for example...). OK, I still don't
understand \HandleGroup ... completely, but the day just began and
coffee is almost ready.

Patrick
-- 
Silent is the goldfish in its bowl

Re: Re: italic correction

[Hans Hagen]

At 09:36 24/09/2003 +0200, you wrote:
>Hi,
>
> > Of course:
> >
> > \def\MyIt{\groupedcommand\it\/}
>
>I came across \groupedcommand some time ago and I wondered why it is
>in there (and not in supp-fun.tex for example...). OK, I still don't
>understand \HandleGroup ... completely, but the day just began and
>coffee is almost ready.

it's a clever command, since it supports \something{grouped} as well as 
{\something ...}

Hans


-------------------------------------------------------------------------
                                   Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                       Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------
                        information: http://www.pragma-ade.com/roadmap.pdf
                     documentation: http://www.pragma-ade.com/showcase.pdf
-------------------------------------------------------------------------

Re: Italic correction

[Hans Hagen]

On 15-8-2011 9:35, Wolfgang Schuster wrote:

> Works. Can this be added to the default features?

depends on the performance drop I guess

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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
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___________________________________________________________________________________

Re: Italic correction

[Wolfgang Schuster]

Am 15.08.2011 um 21:13 schrieb Hans Hagen:

> On 15-8-2011 8:04, Wolfgang Schuster wrote:
>> Hi,
>> 
>> is italic correction still supported with MkIV because in the following example the second sentence has the same length as the first.
>> 
>> % engine=pdftex
>> 
>> \starttext
>> \setbox\scratchbox\hbox{A short sentence with a {\it italic} word.}   \the\wd\scratchbox\ : \box\scratchbox\par
>> \setbox\scratchbox\hbox{A short sentence with a {\it italic\/} word.} \the\wd\scratchbox\ : \box\scratchbox
>> \stoptext
> 
> yes and no:
> 
> yes: the code is there
> no : it has not been adapted to the font cleanup
> 
> So, first fix this in font-ext.lua:
> 
> 	    local descriptions = tfmdata.descriptions
>            for unicode, d in next, tfmdata.characters do
>                local d = descriptions[unicode]
> 
> Then enable the feature:
> 
> \starttext
> 
> \definefontfeature[one][default]
> \definefontfeature[two][default][itlc=yes]

Works. Can this be added to the default features?

Wolfgang
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: Italic correction

[Hans Hagen]

On 15-8-2011 8:04, Wolfgang Schuster wrote:
> Hi,
>
> is italic correction still supported with MkIV because in the following example the second sentence has the same length as the first.
>
> % engine=pdftex
>
> \starttext
> \setbox\scratchbox\hbox{A short sentence with a {\it italic} word.}   \the\wd\scratchbox\ : \box\scratchbox\par
> \setbox\scratchbox\hbox{A short sentence with a {\it italic\/} word.} \the\wd\scratchbox\ : \box\scratchbox
> \stoptext

yes and no:

yes: the code is there
no : it has not been adapted to the font cleanup

So, first fix this in font-ext.lua:

	    local descriptions = tfmdata.descriptions
             for unicode, d in next, tfmdata.characters do
                 local d = descriptions[unicode]

Then enable the feature:

\starttext

\definefontfeature[one][default]
\definefontfeature[two][default][itlc=yes]

\definefont[testa][SerifItalic*one]
\definefont[testb][SerifItalic*two]

\setbox\scratchbox\hbox{A short sentence with a {\testa italic} word.} 
  \the\wd\scratchbox\ : \box\scratchbox\par
\setbox\scratchbox\hbox{A short sentence with a {\testa italic\/} word.} 
\the\wd\scratchbox\ : \box\scratchbox

\setbox\scratchbox\hbox{A short sentence with a {\testb italic} word.} 
  \the\wd\scratchbox\ : \box\scratchbox\par
\setbox\scratchbox\hbox{A short sentence with a {\testb italic\/} word.} 
\the\wd\scratchbox\ : \box\scratchbox

\stoptext



-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Italic correction

[Wolfgang Schuster]

Hi,

is italic correction still supported with MkIV because in the following example the second sentence has the same length as the first.

% engine=pdftex

\starttext
\setbox\scratchbox\hbox{A short sentence with a {\it italic} word.}   \the\wd\scratchbox\ : \box\scratchbox\par
\setbox\scratchbox\hbox{A short sentence with a {\it italic\/} word.} \the\wd\scratchbox\ : \box\scratchbox
\stoptext

Wolfgang

___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________