From: nobu.nokada@...
Date: 2004-07-17T14:09:02+09:00
Subject: Re: Bug? String literal %s{#{a}} cause irb to abort

Hi,

At Sat, 17 Jul 2004 09:05:08 +0900,
Alexey Verkhovsky wrote in [ruby-talk:106691]:
> irb(main):001:0> s = "#{aaa}"
> NameError: undefined local variable or method `aaa' for main:Object
>         from (irb):1
>         from :0
> irb(main):002:0> s = %s{#{aaa}}
> /usr/local/lib/ruby/1.9/irb/ruby-token.rb:101:in `Token': undefined
> method `ancestors' for nil:NilClass (NoMethodError)
>         from /usr/local/lib/ruby/1.9/irb/ruby-lex.rb:995:in
> `identify_string'

Does this help?


Index: lib/irb/ruby-lex.rb
===================================================================
RCS file: /cvs/ruby/src/ruby/lib/irb/ruby-lex.rb,v
retrieving revision 1.22
diff -U2 -p -d -r1.22 ruby-lex.rb
--- lib/irb/ruby-lex.rb	4 Oct 2003 17:51:09 -0000	1.22
+++ lib/irb/ruby-lex.rb	17 Jul 2004 04:35:34 -0000
@@ -325,4 +325,5 @@ class RubyLex
     "\`" => TkDXSTRING,
     "\/" => TkDREGEXP,
+    ":" => TkDSYMBOL,
   }
 
@@ -974,5 +975,5 @@ class RubyLex
 	if @quoted == ch and nest == 0
 	  break
-	elsif @ltype != "'" && @ltype != "]" and ch == "#"
+	elsif ! "']:".index(@ltype) and ch == "#"
 	  subtype = true
 	elsif ch == '\\' #'
Index: lib/irb/ruby-token.rb
===================================================================
RCS file: /cvs/ruby/src/ruby/lib/irb/ruby-token.rb,v
retrieving revision 1.5
diff -U2 -p -d -r1.5 ruby-token.rb
--- lib/irb/ruby-token.rb	5 Aug 2003 03:08:16 -0000	1.5
+++ lib/irb/ruby-token.rb	17 Jul 2004 04:35:26 -0000
@@ -170,4 +170,5 @@ module RubyToken
     [:TkDXSTRING,   TkNode],
     [:TkDREGEXP,    TkNode],
+    [:TkDSYMBOL,    TkNode],
     [:TkNTH_REF,    TkNode],
     [:TkBACK_REF,   TkNode],


-- 
Nobu Nakada