Hello Guys,

Sorry, I am not sure if this thread belongs here.
I am new to perl and writing a regex for identifying if the user input lies in the set [0,100), i.e. the number must lie between 0-100, 0 included. It can be of form 0.000001, .00001, 90, 90.999153263, .12 etc
Following is the regex I wrote: $input =~ /\d\d?\.\d+|(\d\d?|\.\d+)/, but I am not gettinh the result. Can someone help me in this?
Thanks a bunch

TAXXX wrote:

Hello Guys,

Sorry, I am not sure if this thread belongs here.
I am new to perl and writing a regex for identifying if the user input lies in the set [0,100), i.e. the number must lie between 0-100, 0 included. It can be of form 0.000001, .00001, 90, 90.999153263, .12 etc
Following is the regex I wrote: $input =~ /\d\d?\.\d+|(\d\d?|\.\d+)/, but I am not gettinh the result. Can someone help me in this?
Thanks a bunch

Try this

Code:

/^(\d{0,2}\.\d*)$/

Thanks for the prompt reply.
I have a confusion, in the code /^(\d{0,2}\.\d*)$/ if I am correct, it will search for exact one decimal(.) in such scenario, an integer given as input 10, 25 which does not contain decimal will be marked as invalid.

TAXXX wrote:

Thanks for the prompt reply.
I have a confusion, in the code /^(\d{0,2}\.\d*)$/ if I am correct, it will search for exact one decimal(.) in such scenario, an integer given as input 10, 25 which does not contain decimal will be marked as invalid.

yes you are right. if you want to add integers and exclude dot try this way:

Code:

/^(\d{0,2}(\.\d*)?)$/

Good luck