Hi Luigi,

As I said, this example does not produce a PDF file for me.  I will attach the output.

Undefined control sequence ...
...and it points to \showfontkerns

In previous attempts to load a font file directly, I used a command structures something like
but these never worked for me either,
and you seem to be using some other method. 
How should one load the file for this example?

You didn't answer the question: to investigate this behaviour, must I install a second, newer version of context, or can I use the disro version?  What is the reason for installing the latest version of ConTeXt?  Is this \showfontkerns only in versions newer than 2012.05.30 11:26 MKIV ?

This \showfontkerns may be interesting to me, generally.  (So I have a further incentive to get this going!)

On Fri, Nov 30, 2012 at 1:24 PM, luigi scarso <luigi.scarso@gmail.com> wrote:
On Fri, Nov 30, 2012 at 12:40 PM, Steve White <stevan.white@gmail.com> wrote:
> Hi Luigi,
> I am lacking still
>     * a working input (*.tex) file
%% test.tex

>     * the command line to build it with ConTeXt
$> context test.tex

> There are already two ConTeXt installations on different machines here.
> The most recent is 2012.05.30 MKIV, on Ubuntu.
> Are you saying I have to install the latest version of ConTeXt to see the
> effects being discussed?
Quick how-to
$>##  install latest minimals under  /opt/luatex/standalone-new
$>## and run the test
$>mkdir -p /opt/luatex/standalone-new
$>cd /opt/luatex/standalone-new
$>wget http://minimals.contextgarden.net/setup/first-setup.sh
$>bash /first-setup.sh --modules=simplefonts
$>## wait a little
$>cd tex
$>source setuptex
$>## ok we shoudl have context mkiv now
$>context --version
$>cd texmf-project
$>mkdir fonts &&  cd fonts
$>wget http://ftp.gnu.org/gnu/freefont/freefont-src-20120503.zip
$>unzip freefont-src-20120503.zip
$>cd freefont-20120503
$>mv *.ttf  ../
$>cd ..
$>mtxrun --script font --reload
$>## let's see if they are installed
$>mtxrun --script fonts --list --all|grep free
$>cd ..
$>## put the test.tex here
$>context test.tex

> I see vertical lines in your attached PDF... is this a new complaint?
vertical bars are the result of \showkerns
> I thought the problem was that sometimes kerning isn't activated.
could be.

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