freebsd vs. netbsd

Polytropon freebsd at
Fri Jun 12 06:14:07 UTC 2020

On Thu, 11 Jun 2020 18:42:11 -0400, Kurt Hackenberg wrote:
> On 2020-06-11 11:25, Ralf Mardorf via freebsd-questions wrote:
> > There's still the issue with line wrapping. Due to the small screens of
> > mobile phones and unwillingness to change the orientation of the
> > phones, we suffer from the dispute of wrapping lines at around 70 or 80
> > chars vs endless lines.
> Small screens, small windows on big screens, windows much wider than 80 
> characters, variable-size windows. That's a real problem, and solved 
> cleanly, for text in some human languages, by software that 
> automatically fills and word-wraps text to use whatever width is available.
> But it's often done by redefining the ASCII characters carriage return 
> and line feed. Originally they meant, respectively, move the print head 
> to the left margin, and roll the paper up a line.

Erm... no. The carriage return returns the _carriage_ to the
first position (here: to the right), that's why it is called
carriage return and not print head return. :-)

On older electrical typewriters, you will see the following:


which means exactly what you're describing: move the carriage,
advance the paper.

On traditional teletypes, there are distinct keys for each
task, often labeled


(three horizontal bars) for line feed, and


(chevron pointing to the left) for carriage return.

With the advance of computers and video terminal units,
the key symbol became


which describes what the _cursor_ does.

Yes, I am old. ;-)

> Fill-and-wrap software 
> often redefines the two-character sequence CRLF to mean end of 
> paragraph. And, of course, nothing in the text tells other software that 
> those characters have been redefined.

And there are authors who "embed" things in paragraphs,
sometimes intendedly, which leads to all this "smart
logic" to collapse. In the end, you have messages with
one line containing everything (including quoting
prefixes). Even the best logic and heuristic approach
can be fooled. :-)

Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...

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