If you’ve struggled with regular expressions that took hours to match when you needed them to complete in seconds, this article is for you. Java developer Cristian Mocanu explains where and why the ...

Regular expressions come in handy for all varieties of text processing, but are often misunderstood--even by veteran developers. Here's a look at intermediate-level regular expressions and what they ...

If I have a field that is valid if either it is blank or matches a regular expression (For example: \d{10}), how would I write a regular expression that would match any valid input?<BR><BR>(In other ...