lineSplitter ignores the the trailing newline?

Jonathan Marler johnnymarler at
Sun Nov 10 20:30:39 UTC 2019

On Sunday, 10 November 2019 at 12:29:12 UTC, Patrick Schluter 
> On Saturday, 9 November 2019 at 23:07:29 UTC, Jonathan Marler 
> wrote:
>> On Saturday, 9 November 2019 at 23:04:11 UTC, Jonathan Marler 
>> wrote:
>>> On Saturday, 9 November 2019 at 19:28:52 UTC, Paul Backus 
>>> wrote:
>>>> [...]
>>> Interesting, do you have any links and or references that 
>>> establish that unix uses newlines as terminators rather than 
>>> separators?
>> Also, if unix is using it as a "terminator" instead of a 
>> "separator", if you don't have a trailing newline at the end 
>> of the file then the last line wouldn't be "terminated" 
>> properly, so should you ignore the last line?  Should that be 
>> an error?
>> If so, then it sounds like the correct solution for the "tolf" 
>> tool is to always make sure the last line is terminated with a 
>> newline character.  Does that sound correct?
> It would be necessary also for most Unices that don't use 
> glibc. In a lot of libc implementation (Solaris definitely has 
> the bug) fgets() doesn't return correctly the last line if it 
> has no line feed. glibc corrects this behaviour so that most 
> Linux users don't know about this issue.

Interesting.  But it makes sense as it sounds like Unix requires 
each line to end with a line feed, so if it's missing, then it's 
up to the library whether or not they want to support a 
non-standard feature such as a line without a line feed.  It 
makes sense that some libraries would choose not to support it.

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