Re: concat vs format

[Stefan Huchler <stefan.huchler@mail.de>]

I run into a similar problem when I used the prin1 function. It had to
do with the default value auf print-length which was to low.

can you put a (let* ((print-length 5000)) around your code and test
that? Or look up the variable if it could have something todo with your
problem.

Jean-Christophe Helary <brandelune@gmail.com> writes:

>> On Dec 9, 2018, at 13:09, Drew Adams <drew.adams@oracle.com> wrote:
>> 
>>> Is there a difference between:
>>> (concat firstPartofURL secondPartofURL) and
>>> (format "%s%s" firstPartofURL secondPartofURL)?
>> 
>> If both args are strings then no; the result
>> is the same.  But the functions are very
>> different - they take different args and,
>> aside from some cases like this one where
>> the result is the same for some args, their
>> uses/purposes are different.
>
> Thank you.
>
> I'm trying to create URLs from dates and at one point I get a concat that outputs "/path/to/url/..." instead of "/path/to/url/12/04/index.html".
> I checked the code and put format instead of concat and got the same
> result. All the things I try to concat are strings that I
> progressively build over other strings, and edebug gives me correct
> values up to the point where the wrong string is created...
>
> I'm going to re-check the whole thing...
>
> Jean-Christophe Helary
> -----------------------------------------------
> http://mac4translators.blogspot.com @brandelune