Re: strjoin change ramifications with escape sequence behavior

[Ben Abbott]

On Jun 16, 2013, at 11:08 AM, Ben Abbott wrote:

> 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

Stephan proposed a patch, and I've pushed it.

        http://hg.savannah.gnu.org/hgweb/octave/rev/70ea511edbc4

Ben