Range violation error when reading from a file

[lithium iodate]

On Sunday, 16 June 2019 at 23:44:49 UTC, Samir wrote:
> On Sunday, 16 June 2019 at 23:03:04 UTC, aliak wrote:
>
>> stripping the last line could result in an empty line if it 
>> just has strippable characters?
>
> The last line of the file is just text but without a newline 
> (\n) character or any other whitespace character at the end.  I 
> get the same error when I remove the strip function from the 
> readln line.

There is *very* likely to be a terminating new-line at the end of 
the file (many editors add one without asking!). If that the 
case, the last line seen by the loop will be empty and you must 
not attempt to access any elements.