From: Alex Young <alex@...>
Date: 2012-08-30T23:54:17+09:00
Subject: [ruby-core:47370] Re: [ruby-trunk - Bug #6950] ruby-mode: comint-previous-input does not work

On 30/08/12 01:57, drbrain (Eric Hodel) wrote:
>
> Issue #6950 has been updated by drbrain (Eric Hodel).
>
>
> =begin
> Additionally, perhaps your problem is your .irbrc? My irb prompt is unchanged since 1.8.7.
>
> 1.9.2-p290:
>
>    irb(main):001:0>  RUBY_VERSION
>    =>  "1.9.2"
>    irb(main):002:0>  RUBY_PATCHLEVEL
>    =>  290
>
> 1.9.3-p194:
>
>    irb(main):001:0>  [RUBY_VERSION, RUBY_PATCHLEVEL]
>    =>  ["1.9.3", 194]
>
> 2.0.0-r36819
>
>    irb(main):001:0>  [RUBY_VERSION, RUBY_REVISION]
>    =>  ["2.0.0", 36819]
>
> =end

This is RVM at work: https://rvm.io/workflow/irbrc/


  $ rvm use system
Now using system ruby.

  $ irb
irb(main):001:0>

  $ rvm use 1.8.7-p302
Using /home/zander/.rvm/gems/ruby-1.8.7-p302

  $ irb
1.8.7 :001 >

  $ rvm use 1.9.3
Using /home/zander/.rvm/gems/ruby-1.9.3-p194

  $ irb
1.9.3p194 :001 >


-- 
Alex

>
> ----------------------------------------
> Bug #6950: ruby-mode: comint-previous-input does not work
> https://bugs.ruby-lang.org/issues/6950#change-29104
>
> Author: cinsk (Seong-Kook Shin)
> Status: Third Party's Issue
> Priority: Normal
> Assignee:
> Category:
> Target version: 1.9.3
> ruby -v: ruby 1.9.2p180 (2011-02-18 revision 30909) [i686-linux]
>
>
> On RVM irb with ruby 1.9.3-p194, the prompt is somewhat different from irb with ruby 1.8.x
>
> On ruby 1.8, the prompt looks like:
>
>    irb(main):001:0>  _
>
> On ruby 1.9.x, the prompt looks like:
>
>    ruby-1.9.2-p180 :001>  _
>
> Since misc/inf-ruby.el has regular expressions that only parse "irb(...)>" prompt,
> M-p or M-n command do not work properly.
>
> Solution:
>
>    1. replace the initial value of 'inferior-ruby-first-prompt-pattern' and 'inferior-ruby-prompt-pattern' to
>       following:
>
> (defvar inferior-ruby-first-prompt-pattern "^\\(?:irb(.*)[0-9:]+0\\|ruby[-0-9.a-z]+ *:[0-9]+ *\\)>  *"
>    "first prompt regex pattern of ruby interpreter.")
>
> (defvar inferior-ruby-prompt-pattern "^\\(?:\\(irb(.*)[0-9:]+[>*\"'] *\\)+\\|ruby[-0-9.a-z]+ *:[0-9]+[ \"']>  *\\)"
>    "prompt regex pattern of ruby interpreter.")
>
>
>
>