A Tour of C++, 2nd Edition

9

Strings and Regular Expressions

Prefer the standard to the offbeat.

– Strunk & White

• Introduction

• Strings

  string Implementation;

• String Views

• Regular Expressions

  Searching; Regular Expression Notation; Iterators

• Advice

9.1 Introduction

Text manipulation is a major part of most programs. The C++ standard library offers a string type to save most users from C-style manipulation of arrays of characters through pointers. A string_view type allows us to manipulate sequences of characters however they may be stored (e.g., in a std::string or a char[]). In addition, regular expression matching is offered to help find patterns in text. The regular expressions are provided in a form similar to what is common in most modern languages. Both string ...