Regular expression greater than and less than

Question

This expression is to check number > 1

^[1-9]+[0-9]*$

Update:

I'm using ASP.NET validation control.

Thanks.

"If all you have is a hammer, everything looks like a nail." What is wrong with using `>`? — Rowlf, Aug 30 '10 at 06:09
Was trying to do it with Regex. I think the built-in validation for asp.net helps get the job done faster. — Narazana, Aug 30 '10 at 07:08
See also: http://stackoverflow.com/questions/3148240/regex-why-doesnt-01-12-range-work-as-expected — polygenelubricants, Aug 30 '10 at 08:00

score 6 · Answer 1 · edited Aug 30 '10 at 18:39

6

You say this is homework, so I'll give my answer for greater than 57 instead; you can take the idea and modify it.

/^([6-9][0-9]|5[89]|[1-9][0-9]{2,})$/

If you don't have the {a,} construct,

/^([6-9][0-9]|5[89]|[1-9][0-9][0-9]+)$/

edited Aug 30 '10 at 18:39

Martin

answered Aug 30 '10 at 06:19

Charles

Gopi · Answer 2 · 2010-08-30T06:16:23.567

1

I agree with @Rowlf comment! You should not need a regex for doing this (unless this is an interview question :) ) . Just use '>'.

Well, your given regex ^[1-9]+[0-9]*$ is matches >=1 not only >1

edited Aug 30 '10 at 06:16

answered Aug 30 '10 at 06:10

Gopi

2 Answers2