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Hi:<br />
<br />
I've got pretty limited experience dealing with regex expressions.<br />
<br />
I'm looking for a regex expression to validate the following: Valid Year in the form YYYY.<br />
We want to check for years in the 1000's through to the 2000's.<br />
<br />
I came up with something like this:<br />

<pre><code id="code-10-28593790-1">^(15|16|17|18|19|20)\d\d</code></pre>
This would work for years from 1500 - 2099<br />
But I think there must be something a little cleaner/more elegant.<br />
<br />
Thanks,<br />
JohnB
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Hi:

I've got pretty limited experience dealing with regex expressions.

I'm looking for a regex expression to validate the following: Valid Year in the form YYYY.
We want to check for years in the 1000's through to the 2000's.

I came up with something like this:
(CODE)
This would work for years from 1500 - 2099
But I think there must be something a little cleaner/more elegant.

Thanks,
JohnB

What is the regex expression for validating year in the YYYY format?

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.