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Re^4: Repurposing reverse

by ikegami (Pope)
on Jan 31, 2011 at 09:01 UTC ( #885216=note: print w/replies, xml ) Need Help??

in reply to Re^3: How to reverse a (Unicode) string
in thread How to reverse a (Unicode) string

As for the question you added,

Explain why you think this……should produce different output than this…

I agree that there should be a function that does that, but it's not reverse.

Explain why you think

my $water_samples = join '', map chr, 113, 101, 769; my $last_sample = substr($water_samples, -1, 1); print(ord($last_sample), "\n");

should produce different output than

my $water_samples = join '', map chr, 113, 101, 769; $water_samples = reverse($water_samples); my $last_sample = substr($water_samples, 0, 1); print(ord($last_sample), "\n");

Update: Corrected my numbers.

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Re^5: How to reverse a (Unicode) string
by Jim (Curate) on Jan 31, 2011 at 09:39 UTC

    Your rhetorical volley is irrelevant and off-topic as it has nothing whatever to do with Unicode.

    My simple, clear, plain point is that the Perl reverse function is broken because when it reverses what is simply, clearly, plainly a Unicode string with grapheme clusters or jamo in it, it gets it wrong.

    Perl's built-in string reverse function is not fully Unicode-conformant. That's all.

      I don't understand your point. Of course it doesn't handle Unicode. We've always been in agreement about that. The conversation started when you claimed it should and that it shouldn't handle code you just called "rhetorical" and "irrelevant".

      Update: Cleaned up the wording.

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[Corion]: thezip: If you want to confuse your users, use system(1, "that\\command" );, which will make Perl launch it in the background
[Corion]: That will keep the console window open even though the user can't type into it anymore
[thezip]: So I have a script that generates a log file. After script completion, I want tohave VIM open this logfile.
[thezip]: i don't get the command line "back" until I close VIM. No what I want to happen...
[thezip]: I currently don't have access to CYGWIN, else I'd just do a tail -f on the logfile.
[Corion]: thezip: If you want to open vim and can live with opening a second console window, use start "The results" vim.exe c:\path\to\logfile .log

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