Advanced Object‐Oriented Programming

This chapter presents programming topics such as processing regular expressions, implementing state machines, building our own libraries, the file system, system clock and time measurement, ranges and functional programming, expression parsing, syntax trees, and the composite and interpreter design patterns, all complete with code examples. It investigates an interrupt‐like component to handle various actions that are invoked in response to different external events. The chapter looks at the syntax of the functional operator and its calls. It summarizes: basics of the C++ regex library and regular expressions, regex_search functions for regular expression searches and regex_match for matches, reading and processing XML files, and state machines and UML state diagram. Time measurement is one of the most intrinsic features of every microprocessor system. Precisetiming is necessary for all digital circuits, as well as for task scheduling by an OS.