Re^2: Need a regular expression to check the first digit

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Re^3: Need a regular expression to check the first digit by kcott (Archbishop) on May 22, 2021 at 10:02 UTC
You said "Exactly." and then went on to describe something completely different! A regex is not required, nor is `substr`. The condition can be written as simply as: `length == 9 and ! index $_, 5` [download] Here's an example: `$ perl -E ' my @strings = qw{1 234 5 678 567890123 qwerty}; say for grep +(length == 9 and ! index $_, 5), @strings; ' 567890123` [download] The `9` and `5` could be replaced with variables for greater flexibility; however, that wasn't what the OP asked for. — Ken	[reply] [d/l] [select]
Re^4: Need a regular expression to check the first digit by Anonymous Monk on May 22, 2021 at 17:48 UTC
Did you expect any less from our village idiot?	[reply]
Re^5: Need a regular expression to check the first digit by kcott (Archbishop) on May 23, 2021 at 01:09 UTC
I strongly suspected that the author was indeed the current holder of the multicoloured hat with bells on it; however, the lack of textual adornments and use of normal quotes, provided a small window of doubt: perhaps a potential usurper, or a runner-up in last year's Village Idiot Pageant. — Ken	[reply]