Re: when to use ' or "

On 30/07/12 1:10 PM, Bee wrote:
> On Jul 29, 7:24 pm, Ben Fritz<fritzophre...@gmail.com> wrote:
>> On Friday, July 27, 2012 7:02:52 PM UTC-5, Bee wrote:
>>> I tend to use ' around strings passed as arguments to functions or
>>
>>> commands, and use " for comments.
>>
>>> Comments... Please
>>
>> I use " for strings when I need to use special characters, e.g.
>>
>> :execute "nnoremap \<CR>" MyFuncResult()
>>
>> I also use " for strings which contain ' characters, like:
>>
>> :echo "I don't like to double up the ' characters"
>>
>> I use ' everywhere else, especially when I want to include a literal backslash or a " character in a string.
>
> Would your first example be simpler,
> since ' suppresses special chars:
>
> :execute 'nnoremap<CR>' MyFuncResult()

Perhaps it wasn't the best example. This example from :help :normal is
perhaps more instructive (it moves the cursor to the next window).

:exe "normal \<c-w>\<c-w>"

The :normal command doesn't understand <>-notation, so it needs bona
fide control-W characters in its argument. Using :execute with a
double-quoted string and the \< escape inside it (:help expr-quote)
facilitates that, while still keeping the code readable, representable
and printable in valid Unicode text, etc..

Ben.



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