Enabling protruding

Enabling protruding

[Giuseppe Bilotta]

Quick question:

how do you enable character protruding in ConTeXt?

--
Giuseppe "Oblomov" Bilotta

Re: Enabling protruding

[Hans Hagen]

At 05:28 PM 1/23/2002 +0100, Giuseppe Bilotta wrote:
>Quick question:
>
>how do you enable character protruding in ConTeXt?

quick answer: \enableprotruding or nicer: \seteazaalinierea[suspendat] 
given that you translated "hangend" ok -)

Hans

PS. Of course you need to tell context which fonts to hang, like with

\setupfontsynonym [Serif] [handling=pure]
\setupfonthandling[normal][left=.75,right=.75]
\setupalign[verytolerant,stretch,hanging]

see mfonts.pdf for details

Hans

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Re[2]: Enabling protruding

[Giuseppe Bilotta]

Wednesday, January 23, 2002 Hans Hagen wrote:

HH> At 05:28 PM 1/23/2002 +0100, Giuseppe Bilotta wrote:
>>Quick question:
>>
>>how do you enable character protruding in ConTeXt?

HH> quick answer: \enableprotruding or nicer: \seteazaalinierea[suspendat] 
HH> given that you translated "hangend" ok -)

HH> Hans

HH> PS. Of course you need to tell context which fonts to hang, like with

HH> \setupfontsynonym [Serif] [handling=pure]
HH> \setupfonthandling[normal][left=.75,right=.75]
HH> \setupalign[verytolerant,stretch,hanging]

HH> see mfonts.pdf for details

Nothing doing. I tried the following small test file

\setupfontsynonym[Serif][handling=pure]
\setupfonthandling[normal][left=1,right=1]

\starttext

\def\text{This is some kind of test, to see if it hangs,
thisisaverylongwordindeed. }

\dorecurse{20}{\text}

\setupalign[hanging]
\dorecurse{20}{\text}

\stoptext

and no hanging is done.

Re[2]: Enabling protruding

[Hans Hagen]

At 07:44 PM 1/23/2002 +0100, Giuseppe Bilotta wrote:

>Nothing doing. I tried the following small test file
>
>\setupfontsynonym[Serif][handling=pure]
>\setupfonthandling[normal][left=1,right=1]
>
>\starttext
>
>\def\text{This is some kind of test, to see if it hangs,
>thisisaverylongwordindeed. }
>
>\dorecurse{20}{\text}
>
>\setupalign[hanging]
>\dorecurse{20}{\text}
>
>\stoptext
>
>and no hanging is done.

interesting, took me a while to identify the problem (has to do with empty 
parameter). I'll send you a new syst-gen.tex to test.

now, to the hanging: one complication is that once a font is 'defined', its 
characteristics are kind of fixed; i could remove this limitation but it 
would not help at all, since hanging get fixed in tex itself. this means 
that for the preloaded cmr fonts, (or any preloaded font) one has to 
redefine them; also, because of the design sizes, cmr's are not mapped onto 
Serif, so here we need to manually set the fonts (unless one defines them 
as any ps collection, ignoreing the design size)

% output=pdftex

\setupfontsynonym[cmr10][handling=pure]
\setupfontsynonym[Serif][handling=pure]
\setupfonthandling[normal][left=1,right=1]

% so here we load 'm again

\usetypescript[cmr] \setupbodyfont[10pt]

% handy for tracing the hanging

\showframe

% off we go

\starttext
   \dorecurse{100}{testtest, }
   \setupalign[hanging]
   \dorecurse{100}{testtest, }
   \setupbodyfont[pos,10pt]
   \dorecurse{100}{testtest, }
\stoptext
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                                   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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Re[3]: Enabling protruding

[Giuseppe Bilotta]

Thursday, January 24, 2002 Hans Hagen wrote:

HH> At 07:44 PM 1/23/2002 +0100, Giuseppe Bilotta wrote:

HH> interesting, took me a while to identify the problem (has to do with empty
HH> parameter). I'll send you a new syst-gen.tex to test.

Seems to work ...

HH> now, to the hanging: one complication is that once a font is 'defined', its 
HH> characteristics are kind of fixed; i could remove this limitation but it 
HH> would not help at all, since hanging get fixed in tex itself.

I thought it was possible to change the protruding by reassigning
the lp/rpcodes.

HH> this means that for the preloaded cmr fonts, (or any preloaded
HH> font) one has to redefine them; also, because of the design
HH> sizes, cmr's are not mapped onto Serif, so here we need to
HH> manually set the fonts (unless one defines them as any ps
HH> collection, ignoreing the design size)

This is a little of a pain.

About design sizes: couldn't you implement the font remapping
mechanism in such a way that cmr10 sa 12 -> cmr12 and so on, or
something like that?

Maybe something like use a flag (discrete=yes,no) so that when
discrete is on (yes), you give the base name (cmr) and ConTeXt appends
the size (10, 12, ...), and when discrete if off (no) it just
scales.

HH> % output=pdftex

HH> \setupfontsynonym[cmr10][handling=pure]
HH> \setupfontsynonym[Serif][handling=pure]
HH> \setupfonthandling[normal][left=1,right=1]

HH> % so here we load 'm again

HH> \usetypescript[cmr] \setupbodyfont[10pt]

HH> % handy for tracing the hanging

HH> \showframe

HH> % off we go

HH> \starttext
HH>    \dorecurse{100}{testtest, }
HH>    \setupalign[hanging]
HH>    \dorecurse{100}{testtest, }
HH>    \setupbodyfont[pos,10pt]
HH>    \dorecurse{100}{testtest, }
HH> \stoptext

Now cmr hangs even when align is not set to hanging (you can see
this by prefixing \setupalign[nothanging] before the first
dorecurse).

--
Giuseppe "Oblomov" Bilotta

Re[3]: Enabling protruding

[Hans Hagen]

At 12:10 PM 1/24/2002 +0100, you wrote:

>I thought it was possible to change the protruding by reassigning
>the lp/rpcodes.

this is related to how tex internally handles fonts; there are limitations; 
anyway, you don';t want to change them per paragraph, do you?

nb: context turns of protruding (the main switch) in the pagebuilder and 
other non mvl situations

>HH> this means that for the preloaded cmr fonts, (or any preloaded
>HH> font) one has to redefine them; also, because of the design
>HH> sizes, cmr's are not mapped onto Serif, so here we need to
>HH> manually set the fonts (unless one defines them as any ps
>HH> collection, ignoreing the design size)
>
>This is a little of a pain.

no, just a little price to pay

>About design sizes: couldn't you implement the font remapping
>mechanism in such a way that cmr10 sa 12 -> cmr12 and so on, or
>something like that?

sure, but the main problem is that one cannot ask the filesystem what fonts 
there are (try to open a font file from within tex); also, building this 
into context only for cmr is not worth the trouble and slowing down overhead

>Maybe something like use a flag (discrete=yes,no) so that when
>discrete is on (yes), you give the base name (cmr) and ConTeXt appends
>the size (10, 12, ...), and when discrete if off (no) it just
>scales.

there is not so much logic in the 10,12,... and believe me, i have other 
challenges

>Now cmr hangs even when align is not set to hanging (you can see
>this by prefixing \setupalign[nothanging] before the first
>dorecurse).

add a \par after each recurse and it will work as expected; pdftex applies 
the hanging during the par break, so the last values set in the par apply 
(as with left/rightskip cum suis)

Hans
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                                   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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Re: Re[3]: Enabling protruding

[Taco Hoekwater]

On Thu, 24 Jan 2002 14:45:25 +0100
"Hans Hagen" <pragma@wxs.nl> wrote:

> sure, but the main problem is that one cannot ask the filesystem what fonts 
> there are (try to open a font file from within tex); also, building this 
> into context only for cmr is not worth the trouble and slowing down overhead

Well, actually, this works ...

\newif\iffontexists

\def\testfont#1{{\batchmode
  \global\fontexistsfalse
  \font\junk=#1\junk
  \ifdim\fontdimen5\junk>0pt
    \global\fontexiststrue
  \fi }}

\testfont{cmr10 }
\testfont{cmmmr10 }

:)

-- 
groeten,

Taco

Re: Re[3]: Enabling protruding

[Hans Hagen]

At 04:36 PM 1/24/2002 +0100, Taco Hoekwater wrote:
>On Thu, 24 Jan 2002 14:45:25 +0100
>"Hans Hagen" <pragma@wxs.nl> wrote:
>
> > sure, but the main problem is that one cannot ask the filesystem what 
> fonts
> > there are (try to open a font file from within tex); also, building this
> > into context only for cmr is not worth the trouble and slowing down 
> overhead
>
>Well, actually, this works ...
>
>\newif\iffontexists
>
>\def\testfont#1{{\batchmode
>   \global\fontexistsfalse
>   \font\junk=#1\junk
>   \ifdim\fontdimen5\junk>0pt
>     \global\fontexiststrue
>   \fi }}
>
>\testfont{cmr10 }
>\testfont{cmmmr10 }

i know -)

actually i had this for some time (and in font-ini.tex there is still the 
leftover:)

%  safer but sometimes introducing newlines in the log
%
%  \batchmode
%  \font\lastloadedfont\fontfile\somefontspec\relax
%  \errorstopmode
%  \edef\lastfontname{\fontname\lastloadedfont}%
%  \ifx\lastfontname\nullfontname
%    \showmessage{\m!fonts}{10}{\fontfile}%
%    \expandafter\font\csname#1\endcsname=\defaultfontfile\somefontspec\relax
%  \else
%    \expandafter\let\csname#1\endcsname\lastloadedfont
%  \fi

as commented: newlines in th elog, and i hate an ungly  log

a pitty that a decent test didn't make it into etex

Hans
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                       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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Re[5]: Enabling protruding

[Giuseppe Bilotta]

Thursday, January 24, 2002 Hans Hagen wrote:

HH> i know -)

HH> actually i had this for some time (and in font-ini.tex there is still the 
HH> leftover:)

HH> as commented: newlines in th elog, and i hate an ungly  log

HH> a pitty that a decent test didn't make it into etex

Ok, I'll put one in TeXlib ...

--
Giuseppe "Oblomov" Bilotta

no hanging punctuation

[Albrecht Kauffmann]

Hi all,

If I run the following test:

\setupoutput[pdftex]
\setupfontsynonym [Serif] [handling=pure]
\usetypescript [serif,sans,mono] [hanging] [pure]
\setupalign[hanging]
\starttext
\startcolumns[n=3]
\input zapf
\stopcolumns
\stoptext

then I get a pdf-output without hanging punctuation. I use
pdfeTeX, Version 3.14159-1.00b-pretest-20020204-2.1 and
cont-en 2002.3.4. Is this a bug in ConTeXt, or did I forget
something?

With many thanks
Albrecht

RE: no hanging punctuation

[Lutz Haseloff]

> Hi all,
> 
> If I run the following test:
> 
> \setupoutput[pdftex]
> \setupfontsynonym [Serif] [handling=pure]
> \usetypescript [serif,sans,mono] [hanging] [pure] 
> \setupalign[hanging] \starttext \startcolumns[n=3] \input 
> zapf \stopcolumns \stoptext
> 
> then I get a pdf-output without hanging punctuation. I use 
> pdfeTeX, Version 3.14159-1.00b-pretest-20020204-2.1 and 
> cont-en 2002.3.4. Is this a bug in ConTeXt, or did I forget something?
> 
> With many thanks
> Albrecht
> 

I have the same problem with the newest ConTeXt, nobody else?

Greetings

Lutz

Re: no hanging punctuation

[Patrick Gundlach]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="us-ascii", Size: 917 bytes --]

Hi Lutz and Albrecht,

[...]

> > then I get a pdf-output without hanging punctuation. I use
> > pdfeTeX, Version 3.14159-1.00b-pretest-20020204-2.1 and
> > cont-en 2002.3.4. Is this a bug in ConTeXt, or did I forget something?

> I have the same problem with the newest ConTeXt, nobody else?

well, I've tried your file with different context versions:
context/2001.07.11 
context/2002.02.24 
context/2002.03.04 
context/2002.04.17 

always the same result. Is this only a problem with the newest context?

This works for me:

\setuppapersize[S4]
\usetypescript [serif,sans,mono] [hanging] [pure]
\definetypeface [modern][rm][serif][computer-modern][default][handling=pure]
\definetypeface [modern][ss][sans][computer-modern][default][handling=pure]
\setupalign[hanging,tolerant]
\starttext
\modern
\input zapf
\stoptext

Hans: the \startcolumns is broken in the newest beta
-- 
Viele Grüße, 

    Patrick Gundlach

RE: no hanging punctuation

[Lutz Haseloff]

Hi Patrick,

> Hi Lutz and Albrecht,
> 
> [...]
> 
> 
> > > then I get a pdf-output without hanging punctuation. I 
> use pdfeTeX, 
> > > Version 3.14159-1.00b-pretest-20020204-2.1 and cont-en 
> 2002.3.4. Is 
> > > this a bug in ConTeXt, or did I forget something?
> 
> > I have the same problem with the newest ConTeXt, nobody else?
> 
> 
> well, I've tried your file with different context versions: 
> context/2001.07.11 
> context/2002.02.24 
> context/2002.03.04 
> context/2002.04.17 
> 
> always the same result. Is this only a problem with the 
> newest context?
> 
> This works for me:
> 
> \setuppapersize[S4]
> \usetypescript [serif,sans,mono] [hanging] [pure] 
> \definetypeface 
> [modern][rm][serif][computer-modern][default][handling=pure]
> \definetypeface 
> [modern][ss][sans][computer-modern][default][handling=pure]
> \setupalign[hanging,tolerant]
> \starttext
> \modern
> \input zapf
> \stoptext

Thanks, this works.
But what is wrong with this code as seen in mfonts.pdf?

> \setupfontsynonym [Serif] [handling=pure]
> \usetypescript [serif,sans,mono] [hanging] [pure]
> \setupalign[hanging]

Groetjes

Lutz

Re: no hanging punctuation

[Bill McClain]

On Thu, 18 Apr 2002 12:33:05 +0200
"Lutz Haseloff" <Lutz.Haseloff@lbapdm.brandenburg.de> wrote:

> Thanks, this works.
> But what is wrong with this code as seen in mfonts.pdf?

It works with a defined font that is loaded after startup, but not with
a default font like Computer Modern, which is loaded before the hanging
settings are set. You have to reinitialize the modern font as shown in
the previous message.

At least, that is how Hans explained it once before.

-Bill

Re: Enabling protruding

[Bill McClain]

Hans Hagen wrote:

> interesting, took me a while to identify the problem (has to do with empty
> parameter). I'll send you a new syst-gen.tex to test.

I'm interested in this, too. Will it be released soon? (When?)

-Bill

Re: Enabling protruding

[Hans Hagen]

At 09:38 AM 1/25/2002 -0600, Bill McClain wrote:
>Hans Hagen wrote:
>
> > interesting, took me a while to identify the problem (has to do with empty
> > parameter). I'll send you a new syst-gen.tex to test.
>
>I'm interested in this, too. Will it be released soon? (When?)

it's in the current beta (uploaded yesterday)

Hans

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                                   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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