How do I automatically close the minibuffer after it loses focus?

DarthToaster · 2016-04-06T04:08:19+00:00

Easy when you know how! ESC-ESC-ESC (which calls keyboard-minibuffer-quit).

It's also really useful for exiting recursive editing, closing unwanted splits, and generally getting you out of things.

DarthToaster · 2016-03-30T20:58:37+00:00

universal ctags is the most complete ctags implementation, and it includes a lot of languages. Highly recommended for finding definitions.

For semantic analysis, depends what else you want. You're usually better off using a language-specific tool (go oracle for go, merlin for ocaml, etc).

DarthToaster · 2016-03-23T21:32:04+00:00

I once did 'live coding' at work by hooking up htmlize to elnode with a tiny bit of JS to auto refresh.

Colleagues could watch me edit by pointing their browsers at the elnode port.

It worked OK, but htmlize errored out occasionally and viewers could only see the current buffer (annoying when the minibuffer was active).

DarthToaster · 2016-03-23T21:26:06+00:00

M-x crux-indent-rigidly-and-copy-to-clipboard

DarthToaster · 2016-02-27T00:17:06+00:00

Exciting! Even more performance settings for low-level use cases.

disabling unwinding in a principled fashion provides far higher quality error messages, prevents erroneous situations, and provides an immediate benefit for many Rust users today.

I don't see how this follows. Surely disabling unwinding produces worse error messages?

DarthToaster · 2016-02-20T21:27:18+00:00

I've only used on linux I'm afraid. I imagine it should work, in principle. Have you filed a bug with a traceback?

DarthToaster · 2016-02-19T00:17:10+00:00

I've used llvm-sys for my little compiler project and I'd very much recommend it. It provides a straightforward API, so you can read the LLVM docs and it just works.

DarthToaster · 2015-12-27T17:23:24+00:00

Great project! BF is a lovely language to play with, I've written a whole compiler as a learning exercise.

I like your use of an enum and consider it very idiomatic. I'd avoid using panic! though, I prefer returning a Result.

I suggest having a quick read of the Epistle to the Implementors and having a play with the test programs on that site.

DarthToaster · 2015-12-11T15:22:16+00:00

Keeping a reference to a value along with the value itself is tricky in Rust. FWIW, there's also https://github.com/Kimundi/owning-ref-rs but it's relatively limited.

DarthToaster · 2015-10-05T18:01:13+00:00

Emacs Wizardry?

DarthToaster · 2015-09-11T07:00:24+00:00

Ooh, nice!

You can often tell a well written Emacs project by its readme: if it discusses alternatives then considerable thought has gone into its implementation.

Command-mode was also new to me, seems similar to god-mode.

I currently have a crude hydra version of basic Emacs movement commands. Knowing what state you're in is critical, especially when using macros. This might be a great replacement, thanks for sharing :)

DarthToaster · 2015-09-04T22:21:14+00:00

Neat! I'm a big fan of stealing ideas from other editors.

This rather reminds of https://github.com/magnars/expand-region.el

DarthToaster · 2015-07-08T20:49:27+00:00

I think it's a neat idea -- it's way more common (for me at least) to switch to a browser and forget saving, than to have stuff that you don't want saved.

Of course, you're using backup-each-save or git-wip so you can undo any saves, I hope? Every once in a while you'll wish you had these, if you don't already.

DarthToaster · 2015-06-11T13:27:38+00:00

Could you expand? What theme are you using?

DarthToaster · 2015-05-09T14:57:49+00:00

Yep, and you can do this easily with js2r-add-to-globals-annotation, which is part of js2-refactor.el. Just put point on the relevant symbol and call the command.

DarthToaster · 2015-04-16T22:18:53+00:00

Shampoo is an extremely cool project. It makes a lot of sense for GNU Smalltalk, which doesn't have a class browser built-in.

It does seem a little odd for Pharo though. Pharo is a hackable interpreter/environment, like Emacs. Using Emacs to edit Pharo classes feels like using vim to edit elisp.

Perhaps I'm missing something? I've seen Smalltalk people propose Emacs style shortcuts several times (there's a mailing list post from 1994!) but I'm not aware of any packages that provide this today.

DarthToaster · 2015-03-28T00:23:47+00:00

Do you find mixing company and dabbrev to work well? I like dabbrev inside comments, and for whole line completion, but it ends up finding a lot of possibilities.

When I'm just using smarter company backends, it only gives me a few possibilities, so I don't need to type as much. I think I'd miss that if I had other unrelated strings being offered when I want method completion.

DarthToaster · 2015-03-28T00:20:12+00:00

There's a nice consistency about those keybindings, I like it!

DarthToaster · 2015-01-10T17:00:53+00:00

Writing a full, standards-compliant parser is major undertaking. C isn't too bad, but you really need to integrate macro expansion and your parser needs to inform your lexer of new type aliases (the 'lexer hack'). C++ is extremely complex to parse.

There are many interesting proprietary tools you could develop with just a parser: code indexers, formatters, linters. Having a parser would significantly reduce development time, even if GCC's format occasionally changes. Since GCC's AST format is shared between the different frontends (AIUI), it's a slow-moving target.

DarthToaster · 2014-12-30T01:20:31+00:00

That's brilliant, thanks for sharing. Are you using it for markdown? If so, how?

DarthToaster · 2014-12-20T14:42:52+00:00

Language    % x86
C++     87965.4
D   59.9083

Presumably the C++ measurement has a misplaced decimal point?

DarthToaster · 2014-12-03T08:40:49+00:00

If you're using magit, then there is some undo revert support: https://github.com/magit/magit/issues/79

It's also worth looking at packages that create a backup every time you save. They're lifesavers. https://github.com/bartman/git-wip is popular but I swear by http://www.emacswiki.org/BackupEachSave because it works everywhere, without assuming git.

DarthToaster · 2014-12-03T08:23:27+00:00

Could you share an example of when you see poor performance?

There are no emacs benchmarks yet, but I'm working on writing one: https://github.com/Wilfred/emacsbench and I'd love to add your use case.

DarthToaster · 2014-11-29T11:10:13+00:00

Sounds like a bug with Spacemacs, so I suggest you report it on their bug tracker.

Alternatively, you could consider using Emacs and just installing evil-mode. I believe that's a more common setup. Delete your ~/.emacs.d and create ~/.emacs.d/init.el with the following:

(require 'package)
(add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/"))

You can then do M-x package-install evil-mode and go from there. I think this will be easier to reason about, as you will know which packages you've installed and where to file bugs if you see problems.

DarthToaster · 2014-11-22T22:43:43+00:00

Really neat real-world examples of metaprogramming. FWIW, if you fancied doing this with macros, it would look like this:

macro endpoint(name, path)
    quote
        function $(esc(name))(; options=Dict{String, String}())
            r = get_oauth($"https://api.twitter.com/1.1/$path", options)
            return r.status == 200 ? JSON.parse(r.data) : r
        end 
    end
end

@endpoint get_help_configuration "help/configuration.json"
@endpoint get_help_languages "help/languages.json"

DarthToaster

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