Re^2: unicode string comparison (perl 5.26)

A string is almost certainly an integer if it does not contain any non-digits ("\D").

Almost:

>perl -e 'for ("1", "22", "abc", "1e4", "0xABCD", "") { /\D/ or print 
+"\"$_\" is an integer\n" }'
"1" is an integer
"22" is an integer
"" is an integer
>
[download]

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

Comment on Re^2: unicode string comparison (perl 5.26) Download Code

Replies are listed 'Best First'.
Re^3: unicode string comparison (perl 5.26) by BillKSmith (Monsignor) on Nov 02, 2019 at 18:52 UTC
I intentionally ignored unlikely exceptions such as a null string or any 'integer' which cannot be represented exactly in perl's floating point format. Bill	[reply]