Don’t think in paredit, but in emacs you can use align-repeat-left-paren

@roberto: highlight from just before (a-fn) to past (b- and call align-repeat-left-paren will give you that state

@roberto, are you on emacs?

you can use align-cljlet

you may have to install it though.

it is on [m]elpa

Does anybody have any experience using Cursive with IntelliJ?

Some.

Well, right now I'm still too dumb for emacs beyond the basic editor commands, so that's what I'm using until I gain some proficiency.

And it works, you know? I start a leiningen repl and repl away

It would always start in my main class, the cmaze.core

And, for ease of use, I imported my other files into it

But now if I edit my cmaze.png/draw method, paste it into the repl to update it, then boom

It says the method is already defined

I think you want to be using the :require form in an ns declaration.

e.g.

(ns cmaze.core
  (:require [cmaze.util :as util :refer [ foo bar ]]))

But Cursive is a bit fiddly when setting up the REPL.

If you have that set up, though, you can reload a namespace with: (require '[cmaze.util :as util] :reload)

Do I have to do that with every repl or is that a shortcoming of the intellij environment?

Do what in every environment? The require/reload?

Yeah

Yes. You need to tell the REPL when something has changed (unless you have a harness that can manage that transparently)

Hm, I wonder if there's a send to repl command like in F#

I guess that would make it a lot easier

Cursive has a GUI command to load a file in the REPL, I think.

Is that how you do it?

Tools -> REPL -> Sync Files in REPL

There's probably a way to shortcut that, but I have no idea how

If it's available in the keymap section it should be possible

Yup, they're all available for bindings, coolio

That should ease the pain, thanks a lot

I think I hit a typical beginner's problem. I think I am using too many variables in my let forms, but I see no simple way to break it up

What are some good refactoring methods for Clojure?

I'm having a difficult time using OOP refactorings like extract-method or parameter-group in this context

The code in question: http://pastebin.com/5w9eURyu

I've verified that the code works and does as it should, I just want to clean it up to conform to clean coding standards

A general principle is that fns should do only one thing, and should try to be pure.

This draw fn does all the things and is hard to test interactively or reuse in other contexts.

You might consider splitting into into a pure fn that generates a data structure describing the line segments that comprise the maze, and an impure fn that writes an image file given such a data structure.

Well, draw is a purely side-effect method

The maze is generated pure

And then I want to draw it

And the java api isn't stateless

Or pure

Fair point, sorry, I read this hastily

You could split it apart into a pure fn which renders a maze as a seq of lines, then an impure fn to .draw them to the graphics image, but I dunno if there's significant benefit to be gained thereby

Yes, I was thinking about your data structure advice; perhaps an intermediate vector which contains (x,y),(x',y') coordinates

Then all I'd have to do is loop over it and draw without any complexities

Oh yeah, it worked nicely! Thanks @donaldball

Although I feel that I'm still using fairly primitive tools to code and clean up clojure with

If you do the emacs thing, some folk enjoy clj-refactor

I think cursive has similar factoring tools

I do want to try emacs, I've gone for the emacs-live package and it's quite good so far

It's mostly about learning the most basic keystrokes now

I think I phrased my sentiment poorly, I meant that my use of the clojure language is still too crude. I'm only using the basic functions and I feel that i'm missing out on much cleaner, more efficient workflows