Re^2: Work-around for variable length look-behind?

Does that take care of the "in front of an 'a'" requirement? I like it, just trying to figure out what it does?

Comment on Re^2: Work-around for variable length look-behind?

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Re^3: Work-around for variable length look-behind? by BrowserUk (Patriarch) on Oct 11, 2010 at 11:17 UTC
Does that take care of the "in front of an 'a'" requirement? Er, no. I missed that bit of the spec, but it is easily corrected: `$s = 'bbaaccbab sdbcbalsbadcbnw';; ## with added bs ($t = $s) =~ s[(b)(?=a[^\s]+$)][B]g; print $t;; bbaaccbab sdbcBalsBadcbnw` [download] Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. RIP an inspiration; A true Folk's Guy	[reply] [d/l]

Replies are listed 'Best First'.

Does that take care of the "in front of an 'a'" requirement?

Er, no. I missed that bit of the spec, but it is easily corrected:

$s = 'bbaaccbab sdbcbalsbadcbnw';; ## with added bs

($t = $s) =~ s[(b)(?=a[^\s]+$)][B]g; print $t;;
bbaaccbab sdbcBalsBadcbnw
[download]

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.