When you can do like this:
ruby a.rb
“im some text\n”
cat a.rb
str = <<TEXT.squeeze(“o”)
im soooome text
TEXT
p str
What is the rationale for doing <<“TEXT” ?
Have I misunderstood it?
···
–
Simon Strandgaard
I don’t really understand what you’re squeezing is supposed to show, the
double quote is for symetry with the single quote, AFAICT:
irb(main):001:0> f=“hi”
“hi”
irb(main):002:0> puts <<TEXT
irb(main):003:0" a #{f}
irb(main):004:0" TEXT
a hi
nil
irb(main):005:0> puts <<‘TEXT’
irb(main):006:0’ a #{f}
irb(main):007:0’ TEXT
a #{f}
nil
Sam
Quoteing neoneye@adslhome.dk, on Wed, Mar 17, 2004 at 04:44:33AM +0900:
···
When you can do like this:
ruby a.rb
“im some text\n”
cat a.rb
str = <<TEXT.squeeze(“o”)
im soooome text
TEXT
p strWhat is the rationale for doing <<“TEXT” ?
Have I misunderstood it?
–
Simon Strandgaard
“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:
ruby a.rb
“im some text\n”
cat a.rb
str = <<TEXT.squeeze(“o”)
im soooome text
TEXT
p strWhat 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
“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:
ruby a.rb
“im some text\n”
cat a.rb
str = <<TEXT.squeeze(“o”)
im soooome text
TEXT
p strWhat 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):
[snip]
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”
Space the final frontier…
Thanks Robert for clearing that out 
However I see doublequoted heredocs everywhere… I don’t think
there is a common understanding of what it does (yet).
···
On Wed, 17 Mar 2004 09:12:23 +0100, Robert Klemme wrote:
–
Simon Strandgaard
“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:
ruby a.rb
“im some text\n”
cat a.rb
str = <<TEXT.squeeze(“o”)
im soooome text
TEXT
p strWhat 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):
and you can delim with tokens reserved for ruby’s syntax:
~/eg/ruby > cat heredoc.rb
s = ‘foobar’
p <<“<<”
#{ s }
<<
~/eg/ruby > ruby heredoc.rb
" foobar\n"
-a
···
On Wed, 17 Mar 2004, Robert Klemme wrote:
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
–
EMAIL :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
PHONE :: 303.497.6469
ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
URL :: Solar-Terrestrial Physics Data | NCEI
TRY :: for l in ruby perl;do $l -e “print "\x3a\x2d\x29\x0a"”;done
===============================================================================
“Simon Strandgaard” neoneye@adslhome.dk schrieb im Newsbeitrag
news:pan.2004.03.17.12.05.50.515961@adslhome.dk…
“Simon Strandgaard” neoneye@adslhome.dk schrieb im Newsbeitrag
news:pan.2004.03.16.19.37.24.107822@adslhome.dk…When you can do like this:
ruby a.rb
“im some text\n”
cat a.rb
str = <<TEXT.squeeze(“o”)
im soooome text
TEXT
p strWhat is the rationale for doing <<“TEXT” ?
Have I misunderstood it?
IMHO “<<TEXT” is equivalent to <<TEXT with the only difference that
you
can use white space in the delimiter (see example d):
[snip]
irb(main):024:0> d=<<“HERE AM I”
irb(main):025:0" 5+2=#{5+2}
irb(main):026:0" HERE AM I
=> “5+2=7\n”Space the final frontier…
:-))
Thanks Robert for clearing that out
You’re welcome.
However I see doublequoted heredocs everywhere… I don’t think
there is a common understanding of what it does (yet).
IMHO “#{” and “#$” are rare enough that it doesn’t hurt to use <<HERE - at
least you save two chars of typing over <<‘HERE’. 
robert
···
On Wed, 17 Mar 2004 09:12:23 +0100, Robert Klemme wrote:
[snip]
~/eg/ruby > cat heredoc.rb
s = ‘foobar’p <<“<<”
#{ s }
<<~/eg/ruby > ruby heredoc.rb
" foobar\n"
I bet this can be useful for making an obscure compact quine.
···
On Wed, 17 Mar 2004 09:18:30 -0700, Ara.T.Howard wrote:
–
Simon Strandgaard
Hi –
···
On Wed, 17 Mar 2004, Robert Klemme wrote:
IMHO “#{” and “#$” are rare enough that it doesn’t hurt to use <<HERE - at
least you save two chars of typing over <<‘HERE’.
Yes, though you might lose them again if you have any '' characters
that need escaping
David
–
David A. Black
dblack@wobblini.net
[snip]
~/eg/ruby > cat heredoc.rb
s = ‘foobar’p <<“<<”
#{ s }
<<~/eg/ruby > ruby heredoc.rb
" foobar\n"I bet this can be useful for making an obscure compact quine.
Since Ruby doesn’t care what you use as delimiters, usually…
%q delimited_with_spaces .inspect.display
“delimited_with_spaces”=>nil
%q delimited with plain 'ol tabs .inspect.display
“delimited with plain 'ol tabs”=>nil
%q
?> and with newlines?!?
?> .inspect.display
“and with newlines?!?”=>nil
%q^Hbackspaces are stranger yet^H.inspect.display
“backspaces are stranger yet”=>nil
%q^CBut the interrupt character really takes the
cake^C.inspect.display
“But the interrupt character really takes the cake”=>nil
I beg you, though – please don’t take advantage of the fact that you
can delimit strings with interrupts!!!
–Mark
···
On Mar 17, 2004, at 9:14 AM, Simon Strandgaard wrote:
On Wed, 17 Mar 2004 09:18:30 -0700, Ara.T.Howard wrote:
“Mark Hubbart” discord@mac.com schrieb im Newsbeitrag
news:C3ED58B4-783A-11D8-90E1-000502FDD5CC@mac.com…
[snip]
~/eg/ruby > cat heredoc.rb
s = ‘foobar’p <<“<<”
#{ s }
<<~/eg/ruby > ruby heredoc.rb
" foobar\n"I bet this can be useful for making an obscure compact quine.
Since Ruby doesn’t care what you use as delimiters, usually…
%q delimited_with_spaces .inspect.display
“delimited_with_spaces”=>nil
%q delimited with plain 'ol tabs .inspect.display
“delimited with plain 'ol tabs”=>nil
%q
?> and with newlines?!?
?> .inspect.display
“and with newlines?!?”=>nil
%q^Hbackspaces are stranger yet^H.inspect.display
“backspaces are stranger yet”=>nil
%q^CBut the interrupt character really takes the
cake^C.inspect.display
“But the interrupt character really takes the cake”=>nilI beg you, though – please don’t take advantage of the fact that you
can delimit strings with interrupts!!!
This thread goes down the dark side of Ruby… schudder
robert
···
On Mar 17, 2004, at 9:14 AM, Simon Strandgaard wrote:
On Wed, 17 Mar 2004 09:18:30 -0700, Ara.T.Howard wrote: