Regular expressions can be a great problem-solving tool, both when writing code and editing text. The theory is pretty straightforward — find (and sometimes manipulate) items based on a pattern you ...

Let’s say we need a JavaScript function that will take a string of tagged text (that is, it contains Extensible Markup Language (XML) markup) and return only the tags (and not the text that the tags ...

The reflector DBM can be asked to search for a common name by means of a Basic UNIX regular expression applied to all common names known to the DBM. A regular expression search is useful when part of ...