无效的多字节字符（UTF-8）

Question

I am trying compile this Ruby code with option --1.9 :

\# encoding: utf-8                        
module Modd               
  def cpd          
    #"_¦+?" mySQL         
    "ñ,B˜"        
  end    
end   

I used the GVim editor and compiled then got the following error:

SyntaxError: f3.rb:6: invalid multibyte char (UTF-8)

After that I used Notepad++ and changed to Encode as UTF-8 and compiled with this option:

jruby --1.9 f3.rb

then I get:

SyntaxError: f3.rb:1: \273Invalid char `\273' ('╗') in expression

Answer 1

I have seen this happen when the BOM gets messed up during a charset conversion (the BOM in octal is 357 273 277 ). If you open the file with a hexadecimal editor ( :%!xxd on vi ), you will more than likely see characters at the beginning of the file, before the first # .

If you recreate that file directly in utf-8, or get rid of these spurious characters, this should solve your problem.