As I said, I think using Number::Format is a good idea. In all cases, I would advise to consider that you have a (simple) number everywhere (even if it's actually a string, since perl will do the translation for you), and only add the formatting at the last moment when printing.

By default Number::Format works with an OO interface, but you can bypass that by adding the :subs flag. The :vars flag would be needed to change the parameters (eg: thousands separator) but the default values are actually the ones you want. 

use Number::Format qw(:subs);
print format_number(123456.789); # prints 123,456.79

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I told you about the fact that perl will turn the string "123,456" into the number 123 (because it doesn't interpret thousands separator), Number::Format also provides a unformat_number to correctly translate such a string into the expected number.

Edit: my bad, to have trailing zeros you can use the optional parameters of format_number, which are the precision and trailing zeros: 

use Number::Format qw(:subs);
print format_number(123456, 2, 1); # print 123456 with two decimals, f
+ill with 0s

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In reply to Re^5: Issue getting value from text file and keep decimal by Eily
in thread Issue getting value from text file and keep decimal by jason.jackal

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