Mohammad: I am speaking of really very old MacOS from circa 1990.

Mac from BSD era on are decent OS with \n end-of-lines as all unixes.

Le jeudi 29 avril 2021 à 15:16:33 UTC+2, Mohammad a écrit :

> Thank you all for your reply!
>
> @PMario 
> I actually want to use the filter in real cases! Text is created in 
> Tiddlywiki itself or important from the net. For example Fortran code 
> downloaded from the net and imported into the wiki!
> Most of these I think were created in the Unix system! So I like to make 
> sure the filter works in all cases.
>
> @Jean-Pierre
> Thank for the suggestion! I will test it! I do not have a Mac computer but 
> I think I should download text files created in Mac or use Notepad++ to use 
> such newline chars.
>
>
>
> Best wishes
> Mohammad
>
>
> On Thu, Apr 29, 2021 at 4:38 PM Jean-Pierre Rivière <[email protected]> 
> wrote:
>
>> just to be pedantic, but in old Mac'OS the end of line was only \r. so 
>> your code would not work there
>>
>> $list filter="[<source>splitregexp[(\r?\n|\r)]"
>>
>> will do that (not tested yet). we obviously cannot use [\r?\n?]
>>
>>
>> Le jeudi 29 avril 2021 à 13:48:01 UTC+2, PMario a écrit :
>>
>>> On Thursday, April 29, 2021 at 12:26:23 PM UTC+2 Mohammad wrote:
>>>
>>>> It is known that the newline character is different for different OS 
>>>> (see Wikipedia <https://en.wikipedia.org/wiki/Newline>). I am not sure 
>>>> if this is also true for the browsers or not!
>>>>
>>>
>>> 1) If you save a multiline tiddler in TW to the internal store `\n` will 
>>> be used.
>>> 2) If you copy paste content from a file to TW it will use \n
>>>
>>> 3) If you import eg: test.txt from windows there will be "\r\n" in the 
>>> tiddler. 
>>> The next time you edit the tiddler and save there will be  "\n" only. 
>>>
>>>  
>>>
>>>> Having that said, what is the best practice to treat a newline 
>>>> character in a Tiddlywiki filter to work everywhere!
>>>>
>>>> *Case i*
>>>>
>>>> <$list filter="[<source>splitregexp[\n]]" ...
>>>>
>>>
>>> So for case 3 it will look like, if it works, but it will keep the \r in 
>>> memory. 
>>> If you want to remove it use: 
>>>
>>> <$list filter="[<source>splitregexp[\r?\n]]" ... this will always work 
>>> for all OSes. 
>>>
>>> \r? .. means check for \r  optional ... only if it exists 
>>>
>>>  
>>>
>>>> *Case ii*
>>>> <$vars newline="
>>>> " >
>>>> <$list filter="[<source>splitregexp<newline>]" ...
>>>>
>>>
>>> hmm. This won't help since internally we only use \n
>>>
>>> hope that helps
>>> mario
>>>
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