Re: FMTYEWTK about split //

I always used ()=$string=~/(.)/gs; to split a string to characters. Also, it's sometimes useful to iterate through the characters of a list, for which you can use the scalar-context variation: while($string=~/(.)/gs){DO SOMETHING WITH ($1)}; -- you can't do this with split, can you?

Update: added s flags, strange noone noticed that

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Re^2: FMTYEWTK about split // by particle (Vicar) on Jan 21, 2004 at 14:52 UTC
adding to Roger's reply, `print $_, $/ for @{[ split // => $bar ]};` [download] is strict and warnings friendly, as well, and twisted in it's (useless) indirection. ~Particle accelerates	[reply] [d/l]
Re: Re: FMTYEWTK about split // by Roger (Parson) on Jan 21, 2004 at 14:25 UTC
you can't do this with split, can you? Sure can. `for (split //, $string) { print "$_\n"; }` [download]	[reply] [d/l]
Re: Re: Re: FMTYEWTK about split // by ambrus (Abbot) on Jan 21, 2004 at 14:41 UTC
I thought that `for (split //, $string) {` would cost a lot of memory if $string is long, but now I'm not sure.	[reply] [d/l]
Re^4: FMTYEWTK about split // by hardburn (Abbot) on Jan 21, 2004 at 14:47 UTC
It will cost a lot of memory. Fortunately, `$string` is rarely large. And if it is large, the regex-iterator solution will probably be slow. You'll probably be better off with a `substr` solution on large strings. ---- I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident. -- Schemer `: () { :\|:& };:` Note: All code is untested, unless otherwise stated	[reply] [d/l] [select]
Re: Re^4: FMTYEWTK about split // by ambrus (Abbot) on Jan 21, 2004 at 14:49 UTC


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