Long columns can also slow down your reading speed.

Studies show that past a certain number of columns, you read text a lot
slower because your eyes need to spend more time doing the "carriage return
+ line feed" and then need to spend additional time locating the beginning
of the next line. This is not linear (meaning: past a certain number of
columns, reading speed drops sharply).

I also find that 132 columns is way too wide for coding on a laptop, which I
do fairly often, and also to conduct code reviews and review diffs in
browsers or in Eclipse. There's also printing, for people who are into that.

>From my experience, organizations seem to settle on column lengths between
80 and 100 characters.

-- 
Cédric



On Wed, Oct 13, 2010 at 1:32 PM, Reinier Zwitserloot <[email protected]>wrote:

> We experimented with a short line length in order to facilitate seeing
> 2 files at once but we didn't find the benefits worth the hassle.
>
> I'll gladly put in the effort to reformat a patch, or look the other
> way and accept one with a different code style, if its cool enough.
>
> On Oct 13, 5:28 pm, B Smith-Mannschott <[email protected]> wrote:
> > On Wed, Oct 13, 2010 at 16:05, Reinier Zwitserloot <[email protected]>
> wrote:
> > > Trivial style whining? For serious?
> >
> > Hey, it's your project, so whatever it is, it is. I'll just explain
> > your conventions to Emacs. It may sulk a little, but I'm sure it'll
> > get over it.
> >
> > > I'm sure your editor has an auto-format feature of some sort. The tab
> > > style is OTTS, which means that, whatever tabstop you've configured
> > > your editor on, the indents never look weird. I've got a massive
> > > screen at home, as do the other core lombok contributors. Why handicap
> > > ourselves?
> >
> > I often view two buffers next to each other. This useful when editing
> > or diffing. As it happens, 80 columns means I can do this even on my
> > netbook (1024 pixels wide). To do so at 132 columns would require
> > roughly 1600 pixles horizontally, and most of that space would be
> > empty because line length is highly variable. So, I'm not really sure
> > who's handicapping themselves here. *shrug*.
> >
> > > I would have expected you to fall over our liberal use of
> > > one-line if and for statements, which an auto-formatter can't fix :P
> >
> > Yea, I saw the:
> >
> >   if (...) for (...) {
> >       blah
> >   }
> >
> > stuff. Unusual, but reads pretty well. It made me think of Wirth
> > condensed style. ;-) Except, no, WCS is in a universe of its own:
> >
> > procedure GetFileName(uno: integer; var name: array of char);
> >   var i: integer; ch: char;
> > begin i := 0;
> >   loop ch := UT[uno].name[i];
> >     if ch = 0X then exit end;
> >     name[i] := ch; inc(i)
> >   end;
> >   ...
> > end GetFileName;
> >
> > but, that's neither here nor there.
> >
> > using an auto-formatter is a non-solution as it would make submitting
> > patches impossible. But then, using hard tabs kind of kills that
> > anyway, at least via e-mail. Good thing we have github.
> >
> > > The booleans are a hold-over from an old mechanism which is now
> > > virtually never used. We're rewriting this part of the API. We've
> > > written our own much nicer API for manipulating an AST (it's on
> > > github, at lombok.ast), and we're integrating this into lombok proper.
> >
> > That makes sense. I saw lombok.ast, but wasn't clear how it fit
> > together with the rest. Sounds like the Right Thing. I'll have a look.
> >
> > > That way you only need to write a transformer once, instead of the
> > > current status quo (once PER platform. Currently there are 2
> > > platforms, javac/netbeans and ecj/eclipse, though we want to add
> > > IntelliJ's parser to this eventually), and the API is documented (and
> > > much, _much_ nicer).
> >
> > Ah, I hadn't noticed the once-per-platform bit. I guess I haven't dug
> > deep enough.
> >
> >
> >
> >
> >
> >
> >
> > > FWIW, our plan for builders is to offer some sort of @Builder
> > > annotation which creates the works: A builder class, builder() and
> > > make() methods, field-named methods (just firstName(...), not
> > > setFirstName), which return the builder, and all that. When going
> > > through all that effort there's not much point in our opinion of
> > > keeping the class itself filled with setters, i.e: It makes more sense
> > > to make the class itself immutable.
> >
> > > On Oct 13, 8:21 am, B Smith-Mannschott <[email protected]> wrote:
> > >> On Tue, Oct 12, 2010 at 23:59, Reinier Zwitserloot <
> [email protected]> wrote:
> > >> > Rolling your own lombok plugin to produce builder pattern style
> stuff
> > >> > is trivial.
> >
> > >> 132 columns and hard tabs? for serious?
> >
> > >> Well I dove in at HandleData and am now scratching around in
> > >> HandleGetter. It's about as I expected, considering that it's
> > >> manipulating a JavaC's private AST in Java.
> >
> > >> The obsession with returning booleans for everywhere confused me at
> > >> first. For example, createGetterForField returns boolean, but in fact,
> > >> in only ever returns true, which is good, since createGetterForFields
> > >> completely ignores all the booleans returned by createGetterForField
> > >> and just returns its own 'true', hard coded. Who needs that?
> >
> > >> Really, it's just about the public handle(...) method returning a
> > >> boolean (a success value of some kind, I imagine), and your probably
> > >> just trying to be consistent [1], since generateGetterForType actually
> > >> can return false.
> >
> > >> [1]
> http://quotesnack.com/ralph-waldo-emerson/a-foolish-consistency-is-th...
> > >> ;-)
> >
> > >> In the meantime, I've managed to convince myself that I understand how
> > >> createGetter() works, so, yea, it probably wouldn't be very difficult
> > >> to implement my withX(x) builders for immutable types. Supporting a
> > >> variant of @Data and @Setter to provide the OP's chainable setX
> > >> methods would probably be even simpler.
> >
> > >> Yea, Lombok's a nice bit of work.
> >
> > >> // Ben
> >
> > > --
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-- 
Cédric

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