Question: is it possible to create an array of here documents?
a = [<<END
some stuff
more stuff
END,
<<END
even more
END
]
?
···
--
Posted via http://www.ruby-forum.com/.
stuff = [ <<DOC1, <<DOC2, <<DOC3 ]
Hello World
DOC1
How's it going?
DOC2
It's just crazy, thanks.
DOC3
p stuff
#=> ["Hello World\n", "How's it going?\n", "It's just crazy, thanks.
\n"]
···
On Feb 8, 4:09 pm, Roger Pack <rogerpack2...@gmail.com> wrote:
Question: is it possible to create an array of here documents?
Yup:
a = [<<FOO, <<BAR]
some stuff
more stuff
FOO
even more
BAR
···
On Feb 9, 2008, at 12:09 AM, Roger Pack wrote:
Question: is it possible to create an array of here documents?
a = [<<END
some stuff
more stuff
END,
<<END
even more
END
]?
Gavin Kistner wrote:
Posted by Xavier Noria (fxn) on 09.02.2008 00:19
Question: is it possible to create an array of here documents?
stuff = [ <<DOC1, <<DOC2, <<DOC3 ]
Hello World
DOC1
How's it going?
DOC2
It's just crazy, thanks.
DOC3p stuff
#=> ["Hello World\n", "How's it going?\n", "It's just crazy, thanks.
\n"]
Thanks.
···
--
Posted via http://www.ruby-forum.com/\.
I'm glad I didn't have to write the parser for that....
···
On 2/8/08, Phrogz <phrogz@mac.com> wrote:
On Feb 8, 4:09 pm, Roger Pack <rogerpack2...@gmail.com> wrote:
> Question: is it possible to create an array of here documents?stuff = [ <<DOC1, <<DOC2, <<DOC3 ]
Hello World
DOC1
How's it going?
DOC2
It's just crazy, thanks.
DOC3
Is there any reason you wouldn't set up the heredocs first and then add
them to an array?
HD1 = <<ENDHD1
This is a heredoc.
The first of 2.
ENDHD1
HD2 = <<ENDHD2
This is the second heredoc.
ie the last.
ENDHD2
a=[HD1,HD2]
cheers,
···
On Fri, 8 Feb 2008 18:17:28 -0500 Xavier Noria <fxn@hashref.com> wrote:
On Feb 9, 2008, at 12:09 AM, Roger Pack wrote:
> Question: is it possible to create an array of here documents?
> a = [<<END
> some stuff
> more stuff
> END,
> <<END
> even more
> END
> ]
>
>
> ?Yup:
a = [<<FOO, <<BAR]
some stuff
more stuff
FOO
even more
BAR
--
Mark
Waste of constants / variables.
robert
···
On 09.02.2008 12:04, Mark Woodward wrote:
On Fri, 8 Feb 2008 18:17:28 -0500 > Xavier Noria <fxn@hashref.com> wrote:
On Feb 9, 2008, at 12:09 AM, Roger Pack wrote:
Question: is it possible to create an array of here documents?
a = [<<END
some stuff
more stuff
END,
<<END
even more
END
]?
Yup:
a = [<<FOO, <<BAR]
some stuff
more stuff
FOO
even more
BARIs there any reason you wouldn't set up the heredocs first and then add
them to an array?HD1 = <<ENDHD1
This is a heredoc.
The first of 2.
ENDHD1HD2 = <<ENDHD2
This is the second heredoc.
ie the last.
ENDHD2a=[HD1,HD2]
Well, we are not advocating here documents in a row, we are just answering a technical question about whether is possible to have them that way.
···
On Feb 9, 2008, at 12:04 PM, Mark Woodward wrote:
On Fri, 8 Feb 2008 18:17:28 -0500 > Xavier Noria <fxn@hashref.com> wrote:
On Feb 9, 2008, at 12:09 AM, Roger Pack wrote:
Question: is it possible to create an array of here documents?
a = [<<END
some stuff
more stuff
END,
<<END
even more
END
]?
Yup:
a = [<<FOO, <<BAR]
some stuff
more stuff
FOO
even more
BARIs there any reason you wouldn't set up the heredocs first and then add
them to an array?HD1 = <<ENDHD1
This is a heredoc.
The first of 2.
ENDHD1HD2 = <<ENDHD2
This is the second heredoc.
ie the last.
ENDHD2a=[HD1,HD2]
I didn't know constants and variables were in short supply, I'll try to be
more frugal. 
I hope you laugh rather than take offense.
I do want to make the point that code that is easier to understand by
novices is inherently more maintainable. Writing "compact" code is often
over valued, IMHO. I would much prefer to see Marks code, because of the
ease of understanding it.
Leonard
···
On 2/9/08 3:09 AM, "Robert Klemme" <shortcutter@googlemail.com> wrote:
On 09.02.2008 12:04, Mark Woodward wrote:
On Fri, 8 Feb 2008 18:17:28 -0500 >> Xavier Noria <fxn@hashref.com> wrote:Is there any reason you wouldn't set up the heredocs first and then add
them to an array?HD1 = <<ENDHD1
This is a heredoc.
The first of 2.
ENDHD1HD2 = <<ENDHD2
This is the second heredoc.
ie the last.
ENDHD2a=[HD1,HD2]
Waste of constants / variables.
robert
Is there any reason you wouldn't set up the heredocs first and then add
them to an array?HD1 = <<ENDHD1
This is a heredoc.
The first of 2.
ENDHD1HD2 = <<ENDHD2
This is the second heredoc.
ie the last.
ENDHD2a=[HD1,HD2]
Waste of constants / variables.
robert
I didn't know constants and variables were in short supply, I'll try to be
more frugal.
Simpler is often better so frugality might not be the worst course you could take.
I hope you laugh rather than take offense.
No offense taken and it definitively made me smile. (-:
I do want to make the point that code that is easier to understand by
novices is inherently more maintainable. Writing "compact" code is often
over valued, IMHO. I would much prefer to see Marks code, because of the
ease of understanding it.
Completely agreed. There is of course room for interpretation. If code is very elaborate to make understanding easier for novices it can defy the purpose of ease of reading. If code gets compacted for compactness reasons (famous one liners) then it usually becomes hard to read. A simple example: some people (former C programmers?) like to use assignments in if conditions, which is completely unnecessary and can easily be confused with equivalence checks:
1. bad
if foo = calc_foo()
...
2. good
foo = calc_foo()
if foo
...
There is really only one reason where assignment in conditions makes sense because the code becomes easier that way: in loops:
1. nice and short
while line = gets()
...
end
2. awful, because redundant
line = gets()
while line
...
line = gets()
end
Back to the particular example at hand: in this case I would at least replace constants with regular local variables. If you use constants as shown above, you would have to justify exposing these strings. This usually only makes sense, if they are reused individually. If they are not and are just temporarily there then local helper variables are definitively preferred. I would even go as far as to put those here docs directly into the array.
Kind regards
robert
···
On 15.02.2008 20:09, Leonard Cuff wrote:
On 2/9/08 3:09 AM, "Robert Klemme" <shortcutter@googlemail.com> wrote:
On 09.02.2008 12:04, Mark Woodward wrote:
On Fri, 8 Feb 2008 18:17:28 -0500 >>> Xavier Noria <fxn@hashref.com> wrote: