Analyzing Unicode Text with Regular Expressions
Andy Heninger · 2004
For decades now, Regular Expressions have been used in the analysis of text data, for searching for key words, for extracting out desired fields or substrings from larger bodies of text and in editing or transforming text. This paper will discuss the application of regular expressions to Unicode text data, including the approaches and extensions that are required to work effectively with the very large Unicode character repertoire. The emphasis is on Unicode specifically, not on the features of regular expressions in general, which is a subject about which entire books can, and have, been written.