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From: Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>
To: ntg-context@ntg.nl
Subject: Re: Left hanging hyphen
Date: Mon, 2 Mar 2020 17:38:35 +0100	[thread overview]
Message-ID: <20200302173835.4e3dae6150f43304b81fe3b0@gmail.com> (raw)
In-Reply-To: <20200302112226.GA29257@akela.mendelu.cz>

On Mon, 2 Mar 2020 12:22:26 +0100
Tomas Hala <tomas.hala@mendelu.cz> wrote:

> Hi all,
> 
> in composed words in Czech and Slovak languages, the hyphen must be repeated 
> at the beginning of the new line. How can I make it hanging at the left margin?

1. You have to enable hanging punctuation which is missing in your example.

2. You have to create your own protrusion vector because the predefined vectors set hanging for hyphens only for the right margin.

The following example uses code shown in the fonts manual (fonts-mkiv.pdf) to create a custom protrusion vector:

%%%% begin example

\startluacode

fonts.protrusions.classes.tomas_hala = {
    vector = 'tomas_hala',
    factor = 1,
}

fonts.protrusions.vectors.tomas_hala = table.merged (
    fonts.protrusions.vectors.quality,
    {
        [0x002D] = { 0.4, 0.7 }, -- hyphen
    }
)

\stopluacode

\definebreakpoints [czcompound]

\definebreakpoint [czcompound] [-] [nleft=3,nright=3,type=4]

\startsetups [czech]
  \setbreakpoints [czcompound]
\stopsetups

\setuplanguage
  [cz]
  [setups=czech]

\definefontfeature [default] [default] [protrusion=tomas_hala]

\setupalign [hanging]

\mainlanguage [cz]

\showframe [text] [text]

\starttext

\hsize=0pt

modro-zelený

\stoptext
%%%% end example

Wolfgang
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  reply	other threads:[~2020-03-02 16:38 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-02 11:22 Tomas Hala
2020-03-02 16:38 ` Wolfgang Schuster [this message]
2020-03-04 18:28   ` Tomas Hala
2020-03-04 18:56     ` Wolfgang Schuster
2020-03-05 15:29       ` Tomas Hala

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