Re^3: Is there a more functional regex syntax?


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Re^3: Is there a more functional regex syntax?

by smls (Friar)

on Sep 18, 2012 at 17:14 UTC ( [id://994317]=note: print w/replies, xml )

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in reply to Re^2: Is there a more functional regex syntax?
in thread Is there a more functional regex syntax?

Thank, this is what I've been looking for!

It's not extremely pretty, but it should scale nicely for the general case of needing the result of a regex string extraction as a right-hand-side value.

PS: The regex suggested by tobyink above can make the single-line case much more readable: /(\d+)/g

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Re^4: Is there a more functional regex syntax?
by kennethk (Abbot) on Sep 18, 2012 at 17:35 UTC

The regex suggested by tobyink above can make the single-line case much more readable

The advantage of mine is that it actually enforces format, which may or may not be of concern. I also like that you expect two values and you get two values; a little less slight of hand for maintenance. But I do appreciate the elegance of his choice of indices.

Also be aware you'll need to initialize @totals = (0,0) so that the index -1 doesn't map to your first term. tobyink does it, but didn't really emphasize its importance.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

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