17.3. Regular Expressions
A regular expression is a way of describing a sequence of characters. Regular expressions are a stunningly powerful computational device. However, describing the languages used to define regular expressions is well beyond the scope of this Primer. Instead, we’ll focus on how to use the C++ regular-expression library (RE library), which is part of the new library. The RE library, which is defined in the
regex header, involves several components, listed in Table 17.4.