A regular expression (regex) is a pattern that describes a set of strings. Regular expressions are used for advanced context-sensitive searches (e.g. parsing data streams, data mining) and text modifications. They can be found in many advanced editors (e.g. vi, Emacs), in parser programs (e.g. grep) and in languages (e.g. Perl), mostly in a UNIX environment. This book is the standard work on regexes.Systems that support Unicode properties ( 121) may or may not extend that Unicode support to these POSIX constructs. ... physical characters to a single logical character, such as the span-ll example, is considered aone charactera to a fully compliant POSIX regex engine. ... Using a notation similar to [: I I I :], but with a#39;=a#39; instead of a colon, you can reference these equivalence classes within a bracketanbsp;...
|Title||:||Mastering Regular Expressions|
|Author||:||Jeffrey E.F. Friedl|
|Publisher||:||"O'Reilly Media, Inc." - 2006-08-08|