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Postings from January 2018
January 18, 2018 15:48
Message ID: 20180118155234.GB23899@almanda.fritz.box
On Sun, Dec 31, 2017 at 04:21:04PM -0700, Karl Williamson wrote:
> On 12/31/2017 4:13 PM, Andy Lester wrote:
>>> My question is, does this happen often enough in real life to justify the extra code?
>> I'd bet that the case of the object of the + being a single character is the most common use of +, starting with things like s/ +$//;
>> Andy Lester => www.petdance.com
> Yes, but the issue is in the strings it matches, are there a lot of
> spaces in a row? Only in that case is there a noticeable speed up
I think multiple spaces in a row is the most common in practise.
However, I also think most people would not write / +/, but /\s+/
to match a sequence of spaces.
- What is the effect of this proposed patch if /a+/ is used, and it
matches just one or two characters (or even fails to match?).
- Can it still partially match a string of 'a'? "aaaaa" =~ /a+(?=..)/
should match just three a's.
- Is there any effect on modifiers? /a+?/, /a++/