matz	2008-07-10 02:17:05 +0900 (Thu, 10 Jul 2008)

  New Revision: 17979

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=17979

  Log:
    * lib/irb/ruby-lex.rb: support for '\c'. [ruby-talk:263508]
      backported from trunk.  [ruby-talk:307631]

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/lib/irb/ruby-lex.rb

Index: ruby_1_8/ChangeLog
===================================================================
--- ruby_1_8/ChangeLog	(revision 17978)
+++ ruby_1_8/ChangeLog	(revision 17979)
@@ -1,3 +1,8 @@
+Thu Jul 10 02:12:29 2008  Yukihiro Matsumoto  <matz@r...>
+
+	* lib/irb/ruby-lex.rb: support for '\c'. [ruby-talk:263508]
+	  backported from trunk.  [ruby-talk:307631]
+
 Wed Jul  9 22:11:37 2008  Nobuyoshi Nakada  <nobu@r...>
 
 	* string.c (rb_str_succ): reverted previous changes.  [ruby-dev:35389]
Index: ruby_1_8/lib/irb/ruby-lex.rb
===================================================================
--- ruby_1_8/lib/irb/ruby-lex.rb	(revision 17978)
+++ ruby_1_8/lib/irb/ruby-lex.rb	(revision 17979)
@@ -1054,6 +1054,12 @@
 	  break
 	elsif @ltype != "'" && @ltype != "]" && @ltype != ":" and ch == "#"
 	  subtype = true
+	elsif ch == '\\' and @ltype == "'" #'
+	  case ch = getc
+	  when "\\", "\n", "'"
+	  else
+	    ungetc
+	  end
 	elsif ch == '\\' #'
 	  read_escape
 	end

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