On Thursday, March 24, 2016 at 12:12:55 PM UTC-4, BartC wrote: > On 24/03/2016 15:30, Ned Batchelder wrote: > > On Thursday, March 24, 2016 at 9:51:11 AM UTC-4, Steven D'Aprano wrote: > >> You know what is missing from this conversation? > >> > >> For one of Bart's critics to actually show faster code. > >> > >> There's plenty of people telling him off for writing unpythonic and slow > >> code, but I haven't seen anyone actually demonstrating that Python is > >> faster than his results show. > > > > As I mentioned before, I'm happy to explain the fuller Python way to > > write code, but I don't think Bart wants to learn it, because he is > > focused on a different goal than, "write real Python code the best > > possible way." > > > > Here, for example, is a real lexer for JavaScript that I wrote: > > https://bitbucket.org/ned/jslex/src > > > > Thanks for that. > > I don't have any JS to throw at it, but it seems happy with any bits of > source code or even just text. > > Using your short driver program (with the prints commented out), and > tested with 'bible.txt' as input (ie. mostly English words), then your > JS lexer was roughly half the speed of the Python version I linked to > last week (with the if-elif chains and working with strings).
I have tried to find your code, but cannot find in the forest of this thread. Can you provide a link to it online? I would be very interested to understand the difference in performance. Thanks, --Ned. -- https://mail.python.org/mailman/listinfo/python-list
