From: "drbrain (Eric Hodel)" <drbrain@...7.net>
Date: 2012-08-30T09:57:49+09:00
Subject: [ruby-core:47369] [ruby-trunk - Bug #6950] ruby-mode: comint-previous-input does not work


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

----------------------------------------
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.")




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