Re: strjoin change ramifications with escape sequence behavior

[Ben Abbott]

On Jun 16, 2013, at 8:41 AM, Ben Abbott wrote:

> On Jun 16, 2013, at 7:37 AM, Daniel J Sebald wrote:
> 
>> On 06/15/2013 05:45 PM, Stefan Mahr wrote:
>>> 
>>> That's true for your command above, but you need the extra brackets to
>>> join the results:
>>> 
>>> [[cstr(:).'; delimiter(:).']{:}]
>>> 
>>>> while the return value after Stefan's change shows only the first
>>>> portion of that result.  I guess a routine can't return multiple answers.
>>> 
>>> I think you lost the additional brackets, but no idea why.
>> 
>> OK, thanks.  Bad copy on my part.  I'm seeing consistent results now.
>> 
>> Dan
> 
> Dan, I think you did find a problem, but single-quotes are needed.
> 
> From Matlab
> 
> strjoin({'Octave','Scilab'}, '\n')
> 
> ans =
> 
> Octave
> Scilab
> 
> From Octave
> 
> strjoin({'Octave','Scilab'}, '\n')
> ans = Octave\nScilab
> 
> So the second string needs to be escaped.
> 
> What about the first?  Trying Matlab again..
> 
> strjoin({'Octave\n','Scilab\n'}, 'foo')
> 
> ans =
> 
> Octave\nfooScilab\n
> 
> No. Only the second string.
> 
> So a patch that implements ..
> 
>       strjoin({'Octave','Scilab'}, do_string_escapes ('\n'))
> 
> ... should do the job.
> 
> Ben


There's  a bit of a parallel discussion on the patch-tracker.

        https://savannah.gnu.org/patch/index.php?8066

Ben