Re^2: How to trim a line from leading and trailing blanks without using regex or non-standard modules


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Re^2: How to trim a line from leading and trailing blanks without using regex or non-standard modules

by likbez (Sexton)

on Aug 14, 2020 at 19:39 UTC ( [id://11120740]=note: print w/replies, xml )

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in reply to Re: How to trim a line from leading and trailing blanks without using regex or non-standard modules
in thread How to trim a line from leading and trailing blanks without using regex or non-standard modules

So if you want the exact same semantic, it'll become far more complicated than this regex.

I agree. That's a good point. Thank you !

In other words it is not easy to design a good trim function without regex, but it is possible to design one that used regex, but treating the single quoted string as a special case

For example

trim(' ',$line)

trim(/\s/.$line)

BTW this is impossible in Python which implements regex via library, unless you add a new lexical type to the Language (regex string instead of raw string that is used).