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Feature #5352

Updated by naruse (Yui NARUSE) about 3 years ago

"<<" is a frequently used method in text manipulation. Meanwhile, it's also the beginning token of a here-document. 
  Sometimes it may be confusing to newbies. 

 Unlike Perl, in which "<>" is a very very frequently used operator to read lines from a filehandle, in Ruby, "<>" has no meaning. So I think it can be used to represent Here Document, so as to reduce the possibility of misunderstanding method "<<" and here-document token "<<". And In my opinion, <> is more clear than <<, because it looks like kind of brackets. 

 For example, 

 ``` 
   

   str = <SECT1>.upcase + <SECT2>.downcase 
   aaaaaa 
   SECT1 
   XXXXXX 
   SECT2 
 ``` 

 may be clearer than: 

 ``` 
   

   str = <<SECT1.upcase + <<SECT2.downcase 
 ``` 

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