As its name implies, Comprehensive Regular Expression Recipes - A Practical Cookbook provides solutions to solve many practical problems. Because such solutions are not possible without reference to the language elements, the first part of the book introduces the regex concepts. The second part is the "cookbook" with the "recipes". Most recipes start fairly basic, but still solve practical problems, and are successively refined. To simplify understanding, most recipes are explained graphically and augmented with diagrams when necessary. More advanced, but very useful, concepts, such as bounds, Unicode categories, lookarounds and atomic groups, are handled.Rather than providing a large number of variations for a limited number of tasks, the recipes in the book cover a wide range of tasks, with alternative solutions where appropriate. Practical solutions are provided for almost all regex syntax elements, even those often neglected.