pry syntax highlighting/color

[jeffrabovsky]

Using pry from inf-ruby looks like this:

Using pry from iTerm2 looks like this:

Is there a way to get pry's syntax highlighting from within inf-ruby?

Here's what my inf-ruby configuration looks like:

(require 'inf-ruby)
(setq inf-ruby-default-implementation "pry")
(add-hook 'inf-ruby-mode-hook
  (function
    (lambda ()
      (setq show-trailing-whitespace nil)
      (linum-mode 0))))

Here's my ~/.pryrc:

Pry.config.correct_indent = false if ENV['INSIDE_EMACS']

Thanks for your help!

[dgutov]

Over here, I do have the return values highlighted. But IIUC you're asking about the input text.

That sounds difficult, because comint-mode doesn't replace the input lines with their echoes from the external process. Not sure how that could work in practice, with different kinds of REPLs.

[Trevoke]

Could we do something like.. Turn on the echo in the REPL and colorize the
echo?

On Wed, Sep 28, 2016 at 7:08 PM Dmitry Gutov notifications@github.com
wrote:

Over here, I do have the return values highlighted. But IIUC you're asking
about the input text.

That sounds difficult, because comint-mode doesn't replace the input
lines with their echoes from the external process. Not sure how that could
work in practice, with different kinds of REPLs.

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[dgutov]

It might be possible, and it would need to happen in comint.el. If you're interested, please give it a try.

[jeffrabovsky]

@dgutov That's strange that you're getting return values highlighted and I'm not.

I'm getting the same result too when I replace my .emacs with this minimal one:

(setq package-archives
  '(("gnu" . "https://elpa.gnu.org/packages/")
    ("marmalade" . "https://marmalade-repo.org/packages/")))

(require 'package)
(setq package-enable-at-startup nil)
(package-initialize)
(package-refresh-contents)

(defvar my-packages '(inf-ruby exec-path-from-shell))

(dolist (p my-packages)
  (when (not (package-installed-p p))
    (package-install p)))

(require 'inf-ruby)
(setq inf-ruby-default-implementation "pry")
(add-hook 'inf-ruby-mode-hook
  (function
    (lambda ()
      (setq show-trailing-whitespace nil)
      (linum-mode 0))))

(when (memq window-system '(mac ns))
  (exec-path-from-shell-initialize))

Here's what I see:

Any ideas what could be going wrong on my end? I'm using emacs 24.5.1 from https://emacsformacosx.com

[jeffrabovsky]

I'm not sure why, but my Pry.color was false when running pry within inf-ruby. I added Pry.color = true to my ~/.pryrc and now I get colorized return values.

[dgutov]

Ah yup, I have that in my .pryrc as well.