From: Robert Klemme <bob.news@...>
Date: 2004-03-17T17:14:37+09:00
Subject: Re: why use heredoc in doublequotes?


"Simon Strandgaard" <neoneye@adslhome.dk> schrieb im Newsbeitrag
news:pan.2004.03.16.19.37.24.107822@adslhome.dk...
> When you can do like this:
>
> server> ruby a.rb
> "im some text\n"
> server> cat a.rb
> str = <<TEXT.squeeze("o")
> im soooome text
> TEXT
> p str
> server>
>
>
> What is the rationale for doing <<"TEXT"  ?
>
> Have I misunderstood it?

IMHO "<<TEXT" is equivalent to <<TEXT with the only difference that you
can use white space in the delimiter (see example d):

irb(main):002:0> a=<<HERE
irb(main):003:0" 5+2=#{5+2}
irb(main):004:0" HERE
=> "5+2=7\n"
irb(main):005:0> b=<<"HERE"
irb(main):006:0" 5+2=#{5+2}
irb(main):007:0" HERE
=> "5+2=7\n"
irb(main):008:0> c=<<'HERE'
irb(main):009:0' 5+2=#{5+2}
irb(main):010:0' HERE
=> "5+2=#{5+2}\n"
irb(main):024:0> d=<<"HERE AM I"
irb(main):025:0" 5+2=#{5+2}
irb(main):026:0" HERE AM I
=> "5+2=7\n"
irb(main):027:0> d=<<HERE AM I
irb(main):028:0" 5+2=#{5+2}
irb(main):029:0" HERE AM I
irb(main):030:0" HERE
SyntaxError: compile error
(irb):27: syntax error
d=<<HERE AM I
           ^
        from (irb):27
irb(main):031:0>

Regards

    robert